Rolls-Royce Archives

Rolls-Royce Experimental Archives: Box ExFiles\Box 156\2\        Box Selection

IdentifierEntry
scan0001 Letter to S. Smith & Sons Ltd. regarding test results and requested alterations for a thermostat unit.
View original record 1328 January 3rd.1938. Rm/Std.6/AP. Messrs S.Smith & Sons Ltd., CRICKLEWOOD WORKS, LONDON N.W.2. For the attention of Mr.Grose. Dear Sirs, We have completed preliminary tests on the thermostat system…

scan0002 Request for a drawing and quotation for 1,000 thermostat units for a 25 HP Vauxhall with a modified temperature setting.
View original record 1328 Rm/Std.3/MH. 3rd. January 1938. Messrs. The British Thermostat Co. Ltd., Teddington Works, Windmill Road, Sunbury-on-Thames, MIDDSX. For the attention of Mr. Martin-Hurst. Dear Sirs, Will you…

scan0003 Quotation letter from The British Thermostat Co., Ltd. for 1,000 thermostats.
View original record Telephone: SUNBURY-ON-THAMES 456 (6 LINES) 1328 Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES. Code: BENTLEY'S THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments. INCORPORATED BY…

scan0004 Blueprints for a Bentley 11 Thermostat System and Thermometer Bottle.
View original record HPS. c. Rm. c. Rm/Std. 1328 BY/Ald.10/0.4.1.38. BENTLEY 11. THERMOSTAT SYSTEM AND THERMOMETER BOTTLE. SECTION 5250. Please receive herewith two blueprints of the following drawing :- Ex.S.353 Locating…

scan0005 Letter from S. Smith & Sons regarding the performance and supply of thermostat units.
View original record 105 (1328) CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY BY APPOINTMENT TO HIS MAJESTY THE KING THE ENGINEERING AND ALLIED EMPLOYERS' NATIONAL FEDERATION 1896 TELEPHONE: GLADSTONE 3333 (20…

scan0006 Official order for one thermostat from S. Smith & Sons Ltd.
View original record 1328 To Roy. c. to G/WFH. Rm/Std.5/JH.10.1.38. Referring to your G/WFH/GA.80/MV.15.12.37. Will you please pass an official order to Messrs. S.Smith & Sons Ltd. for one thermostat to X.30065 (BV type)…

scan0007 Letter from S. Smith & Sons confirming an order for a thermostat set to start opening at 78/80° C.
View original record Please quote our reference: S.10 Your ref:- Rm/Std.9/JH. 10th January 1938. Messrs. Rolls-Royce Ltd., DERBY. Dear Sirs, For the attention of Mr. C.S. Steadman. We acknowledge receipt of your letter of…

scan0008 Official order be placed for a modified thermostat from S. Smith & Sons Ltd.
View original record 1328 To Roy. c. to G/JWH. Rm/Std.6/JH.10.1.38. Will you please pass an official order to Messrs. S. Smith & Sons Ltd. for 1 thermostat to X.30065 (BV type) except that the valve aperture dia. is to be…

scan0009 Letter to S. Smith & Sons Ltd. requesting a new thermostat and discussing dissatisfaction with the temperature range of another.
View original record Rm/Std.9/JH. 8th January, 1937. Messrs. S. Smith & Sons Ltd., Cricklewood Works, LONDON. N.W.2. For the attention of Mr. Grose. Dear Sirs, We thank you for your letters of Dec. 31st. and the 6th…

scan0010 Letter from S. Smith & Sons concerning the specifications and testing of a thermostat.
View original record 105 1328. ENGINEERING & ALLIED EMPLOYERS NATIONAL FEDERATION 1896 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY BY APPOINTMENT TO HIS MAJESTY THE KING TELEPHONE: GLADSTONE 3333 (20 LINES)…

scan0011 Thermostat bypass scheme to reduce cost and a change in the thermostat unit to reduce weight.
View original record To Da. from Rm/Std. 1328 10HH Rm/Std.7/MH.21.1.38. B.50 THERMOSTAT. As discussed with Da/JNR. we think that in order to reduce cost and complication of connecting pipes etc., it is worth considering…

scan0012 Requesting the production of a second set of parts for a Bentley II thermostat scheme experiment.
View original record To HPS. from Rm/Std. 200b Rm/Std.9/AP.21.1.38 1398 BENTLEY II. THERMOSTAT SCHEME - EXPERIMENTS OF B.III. SCHEME. Will you please produce a second set of parts for thermostat scheme SCD.14 and SCD.149…

scan0013 Official order be sent to Messrs. S.Smith & Sons for a thermostat unit and conversion work.
View original record 1328 To Roy. from Rm/Std. c. G/JWH. Rm/Std.5/AP.25.1.38 Will you please send an official order to Messrs.S.Smith & Sons Ltd., for the following:- 1. Thermostat unit to X.30065 but with 1¼" dia. valve…

scan0014 The return of a thermostat unit to S. Smith & Sons Ltd. for modification.
View original record 1328 To D/BP. from Rm/Std. c. G/Mt. Rm/Std.4/AP.25.1.38 We are sending into the Central Stores one thermostat unit to 30065, will you please return this to Messrs.S.Smith & Sons Ltd., for the…

scan0015 Letter to The British Thermostat Co. Ltd. regarding the specifications for a thermostat sample.
View original record ZX 2424 1328 January 25th.1938 Rm/Std.3/AP. The British Thermostat Co.Ltd., Teddington Works, Windmill Road, Sunbury-on-Thames, MIDDLESEX. For the attention of Mr.Martin-Hurst. Dear Sirs, Referring to…

scan0016 Letter to S. Smith & Sons Ltd. discussing modifications and quotes for a special thermostat unit.
View original record 1328 Rm/Std.8/MH. 25th. January 1938. Messrs. S.Smith & Sons Ltd., Cricklewood Works, London, N.W.2. For the attention of Mr. Grosé. Dear Sirs, We have received your letter of 14th. inst., for which…

scan0017 Letter to S. Smith & Sons Ltd. requesting a second unit of a specified valve type.
View original record Messrs. S.Smith & Sons.Ltd. -2- 25.1.38. Will you also please send us a second new unit of the last mentioned type, (1 1/4" valve seat diameter and 78-80°C opening temperature). Our official order…

scan0018 Letter from The British Thermostat Co., Ltd. regarding a sample thermostat and drawing BGA. 3754.
View original record Telephone: SUNBURY-ON-THAMES 456 (6 LINES) Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES. Code: BENTLEY'S 132 B. THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments. DIRECTORS: COL.…

scan0019 Letter from S. Smith & Sons acknowledging an order for a thermostat, code X.30065, and advising of a delay in providing a quotation.
View original record 1828 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY. BY APPOINTMENT TO HIS MAJESTY THE KING ENGINEERING & ALLIED EMPLOYERS' NATIONAL FEDERATION 1896 TELEPHONE: GLADSTONE 3333 (20 LINES)…

scan0020 Quotation letter from S. Smith & Sons for Thermostat units.
View original record CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY TELEPHONE: GLADSTONE 3333 (20 LINES) TELEGRAMS: SPEEDOFAC, PHONE, LONDON. S.SMITH & Sons (Motor Accessories) Ltd CRICKLEWOOD WORKS LONDON, N.W.2…

scan0021 Request to supply a thermostat assembly, pump cover, and bypass pipe for a streamlined M-series Bentley II chassis.
View original record 1328 To HPS. from Rm/Std. Rm/Std.12/AP.4.2.38 We hand you herewith a thermostat assembly to LeC.3488 - will you please supply a pump cover complete with fittings to EB.3461 and a bypass pipe to…

scan0022 Return of a failed Bentley thermostat unit for examination and replacement.
View original record To D/BP. from Rm/Std. c. c. Q/Mt. c. Roy. Rm/Std.6/MH.11.2.38. 1328 We hand you herewith a Bentley thermostat unit EB.3509 which has failed. Will you please return this to Messrs. The British…

scan0023 Letter from The British Thermostat Co. acknowledging the failure of a thermostat referenced by drawing number EB. 3509.
View original record Telephone: SUNBURY-ON-THAMES 456 (6 LINES) Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES. Code: BENTLEY'S . 1328 . THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments. DIRECTORS:…

scan0024 Letter from a supplier discussing the failure of a thermostatic unit and proposing a solution.
View original record Telephone: SUNBURY-ON-THAMES 456 (6 LINES) THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments. TEDDINGTON WORKS. Windmill Road, Sunbury-on-Thames, Middlesex. Telegrams & Cables:…

scan0025 Letter concerning thermostat bellows failure and proposed testing of experimental units.
View original record Page 2. Messrs. Rolls-Royce Limited. state on your drawing that the free length of the bellows had to be such that in the event of failure of the thermostatic element the radiator valve would open…

scan0026 Letter from The British Thermostat Co. regarding a suggestion for a baffle plate for a thermostat.
View original record Telephone: SUNBURY-ON-THAMES 456 (6 LINES) Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES. Code: BENTLEY'S 1328 THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments. Windmill Road,…

scan0027 Failure of a bellows unit in an M.Series thermostat system.
View original record To By. from Rm/Std. c. HS. c. Ds. c. RHC. 1328 B.II. THERMOSTAT SYSTEM - M.SERIES. We have had a failure of a bellows unit to EB.3509 on B.23.AE. car after 2200 miles running - this is the scheme…

scan0028 Analysis of a bellows unit failure, discussing valve opening dimensions and awaiting manufacturer information.
View original record -2- Rm/Std.3/AP.17.2.38 has done very little running, in order to determine whether its free length is such that the valve will be full open after failure. We find that its free length is such that…

scan0029 Letter from The British Thermostat Co. Ltd. discussing a failed thermostatic unit and proposed solutions.
View original record COPY OF LETTER FROM THE BRITISH THERMOSTAT CO.LTD., 15th February 1938. Messrs Rolls-Royce Limited, DERBY. Dear Sirs, We acknowledge receipt of your letter of February 11th. We have examined the…

scan0030 Return and repair of two thermostat units, one to be repaired free of charge.
View original record To Roy. from Rm/Std. c.c. G/JWH. Rm/Std.4/MH.17.2.38. 1328 Will you please note that we have returned one thermostat unit to EB.3509 which has failed in service, to The British Thermostat Co. Ltd. for…

scan0031 Letter to The British Thermostat Co. Ltd. regarding a potential bellows failure in a unit.
View original record 1328 Rm/Std.10/JH. 18th February, 1938. The British Thermostat Co.Ltd. Teddington Works, Windmill Road, Sunbury on Thames. MIDDX. For the attention of Mr. Martin Hurst. Dear Sirs, ^ We have received…

scan0032 Instruction to despatch a Thermostat Unit for repair to British Thermostat Co. Ltd.
View original record G/Mt. c. to D/RR. c. to Rm/Std. 1328. W Rm / STD ROY/FS.7. 18th Feb. 1938. Please despatch carriage paid to:- Messrs. British Thermostat Co.Ltd., Windmill Road, Sunbury. 1. Thermostat Unit EB.3509 -…

scan0033 Letter concerning a potential bellows fault on a new unit due to water pressure and assuring future deliveries will be correct.
View original record Telephone: SUNBURY-ON-THAMES 456 (6 LINES) FBI LOGO INCORPORATED BY ROYAL CHARTER DIRECTORS: COL. N. HUDSON. J. E. SHERLOCK MANAGING. W. F. P. MARTIN-HURST L. G. SWINNERTON DYER. F. G. POPLETT. 1328.…

scan0034 Letter from The British Thermostat Co. Ltd. concerning the testing and return of bellows assemblies.
View original record Telephone: SUNBURY-ON-THAMES 456 (6 LINES) Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES. Code: BENTLEY'S THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments. DIRECTORS: COL. N.…

scan0035 Instruction to fit a thermostat and a stainless steel thrust plug to the B.III No.1 engine unit while on the test bed.
View original record To HPS. from Rm/Std. c. Rm/Swdl. c. Rm/FD. 200b. 1328. Rm/Std.2/AP.10.3.38 B.III. THERMOSTAT & WATER PUMP. B.III. No.1. UNIT. The first B.III. engine unit built had no thermostat or housing fitted to…

scan0036 Letter detailing the results of testing new thermostat units and their bellows measurements after 450 miles of running.
View original record 1328. March 11th.1938 Rm/Std.7/AP. The British Thermostat Co.Ltd., Teddington Works, Windmill Road, Sunbury-on-Thames, MIDDLESEX. For the attention of Mr.Martin-Hurst. Dear Sirs, We have now completed…

scan0037 The unsatisfactory performance of bellows units, detailing measurements and operational concerns.
View original record 3. up with the 0.137" measured. We then pulled the valve full open until the bellows plate was up against the bypass seating and the valve lift was found to be 0.280" i.e. 0.143" extension beyond free…

scan0038 List of measurements for bellows length and valve lift under various conditions.
View original record Bellows length(on maker's label) in free position - 1.437 " " (measured after 450 miles running) - 1.530 in free position. " " as received fully compressed - 1.280 Valve lift - after release of charge…

scan0039 Letter from The British Thermostat Co. Ltd. requesting the return of a discharged thermostat for measurement clarification.
View original record 1328 Telephone: SUNBURY-ON-THAMES 456 (6 LINES) Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES. Code: BENTLEY'S FBI INCORPORATED BY ROYAL CHARTER MEMBERS OF THE NATIONAL UNION OF MANUFACTURERS NUM…

scan0040 Thermostat unit being sent for repair to The British Thermostat Co. Ltd.
View original record 1328. To D/BP. from Rm/Std. c. G/Mt. Rm/Std.2/MH.15.3.38. We are sending into the central stores one thermostat unit to EB.3509 which is to be returned to The British Thermostat Co. Ltd. marked "For…

scan0041 Sending a thermostat unit for repair to The British Thermostat Co. Ltd.
View original record 1328. To D/BP. from Rm/Std. c. G/Mt. Rm/Std.2/MH.15.3.38. We are sending into the central stores one thermostat unit to EB.3509 which is to be returned to The British Thermostat Co. Ltd. marked "For…

scan0042 Letter to The British Thermostat Co. Ltd. regarding revised measurements for a thermostat bellows unit.
View original record 1328. RM/Std.3/MH. 15th. March 1938. The British Thermostat Co. Ltd., Teddington Works, Windmill Road, Sunbury-on-Thames, MIDDLESEX. For the attention of Mr. Martin-Hurst. Dear Sirs, We have received…

scan0043 The second page of a letter from the Experimental Department concerning alterations to figures.
View original record -2- 15th. March 1938. In spite of these alterations to figures given, the criticisms made in our last letter still apply. Yours faithfully, for ROLLS-ROYCE LTD. (Experimental Dept.)

scan0044 Table of measurements detailing the movement of a bellows unit under various conditions.
View original record (1) Bellows unit fixed in casing with no valve head fitted, i.e. on cold stop. (3) Bellows unit in casing with valve fitted - i.e. set at correct opening temp. (3) Bellows unit in casing after 450…

scan0045 Letter to The Drayton Regulator Co. requesting lists and particulars of automobile thermostats and bellows.
View original record 1828 March 18th .1938 Rm/Std.4/AP. The Drayton Regulator Co. West Drayton, MIDDLESEX. For the attention of Mr. Lynon. Dear Sirs, The writer regrets that he missed Mr. Lynon when he was at our Works…

scan0046 Letter from The British Thermostat Co., Ltd. regarding a disagreement over bellows measurements.
View original record File Thermostat 1328. Telephone: SUNBURY-ON-THAMES 456 (6 LINES) Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES. Code: BENTLEY'S THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments.…

scan0047 Letter from a supplier discussing dimensional discrepancies of a returned bellows unit and suggesting a material change for rebuilding.
View original record Page 2 Messrs. Rolls-Royce Ltd. by measurement since you returned the unit, is 1.259" and if you add to this .323" which you state was the movement from the cold stop to the free position, it gives a…

scan0048 Request to send an official order to S. Smith & Sons Ltd. for a thermostat with a special opening temperature.
View original record To Roy. from Rm/Std. c. G/JWH. γ 1328 . Rm/Std.4/AP.28.3.38 Will you please send an official order to Messrs S.Smith & Sons Ltd., for one thermostat to X.30065/5 (their drawing No.) except that it is…

scan0049 Letter of complaint regarding a supplied American car heater, comparing it unfavorably to a lighter unit and requesting a specific thermostat.
View original record Rm/Std.5/Ap. March 28th.1938 Messrs S.Smith & Sons Ltd., Cricklewood Works, LONDON N.W.2. For the attention of Mr.Grose. Dear Sirs, With regard to the car heater set which you sent us for examination…

scan0050 Letter from The British Thermostat Co. regarding the forwarding of a thermostat and proceeding with the manufacture of 50 units.
View original record Handwritten: Jeli Thermostat Handwritten: 1328. Telephone: SUNBURY-ON-THAMES 456 (6 LINES) Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES. Code: BENTLEY'S THE BRITISH THERMOSTAT CO., LTD. Makers of…

scan0051 Letter to The British Thermostat Co. Ltd. regarding the use of 'Alumbro' for thermostat bellows and measurement discrepancies.
View original record 1328 March 30th.1938 RM/Std.11/AP. The British Thermostat Co.Ltd., Teddington Works, Windmill Road, Sunbury-on-Thames, MIDDLESEX. For the attention of Mr.Martin-Hurst. Dear Sirs, Referring to our…

scan0052 Letter discussing car heater component failures and requesting quotations for new parts.
View original record -2- and have both become impossible to operate - we have examined them and find that pieces of insulation have broken loose in one, while in the other the rheostat wire has been forced out of position…

scan0053 The M. series Bentley thermostat unit, discussing material changes and testing.
View original record 1328 To By. from Rm/Std. c. Hs. c. Da. c. Roy. Rm/Std.1/AP.31.3.38 M. series Bentley thermostat unit - EB.3509 We have completed 500 miles running on a thermostat unit to EB.3509 as per M series…

scan0054 Letter from a supplier regarding thermostat characteristics, the composition of 'Alumbro', and a quotation for car heater motors.
View original record 1328 Telephone: SUNBURY-ON-THAMES 456 (6 LINES) Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES. Code: BENTLEY'S THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments. DIRECTORS: COL. N.…

scan0055 Letter from The British Thermostat Co. Ltd. concerning prices, a car heater switch and acknowledging receipt of drawings.
View original record - 2 - Messrs. Rolls-Royce Ltd. We trust that you will find these prices attractive. We are not quoting for the Car Heater Switch until we see the sample which you are returning so that we may know…

scan0056 Requesting an official order for a thermostat fitted with 'Alum-bro' material bellows.
View original record To Roy. from Rm/Std. c. G/JWH. 1328. Rm/Std.1/AP.2.3.38 0/52434 Will you please send an official order to The British Thermostat Co.Ltd., for one thermostat to EB.3509 fitted with 'Alum-bro' material…

scan0057 Letter concerning overheated motor rheostats and a request for further specifications before providing a quotation.
View original record Telephone: SUNBURY-ON-THAMES 456 (6 LINES) FBI - FEDERATION OF BRITISH INDUSTRIES INCORPORATED BY ROYAL CHARTER DIRECTORS: COL. N. HUDSON. J. E. SHERLOCK W.P.F. MARTIN-HURST } MANAGING. L.S.…

scan0058 Letter from S. Smith & Sons clarifying a confusion over a special thermostat order and associated part codes.
View original record [Handwritten top center: 1328.] [Letterhead] CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY [Left Column] ENGINEERING ALLIED EMPLOYERS' NATIONAL FEDERATION [Logo] TELEPHONE: GLADSTONE 3333 (20…

scan0059 Letter to S. Smith & Sons Ltd. clarifying thermostat specifications, size, and opening temperature.
View original record 1328 April 5th.1938 Rm/Std.4/AP. Messrs S.Smith & Sons Ltd., Cricklewood works, LONDON N.W.2 For the attention of Mr.Grose. Dear Sirs, Referring to your telephone calls of today, the writer regrets…

scan0060 Requesting an official order for one thermostat from The British Thermostat Co. Ltd.
View original record To Roy. from Rm/Std. c. G/JWH. 1328 Rm/Std.8/AP.o.4.38 Will you please send an official order to Messrs The British Thermostat Co.Ltd., for one thermostat to BGA.3780 (EB.3509) with bellows in…

scan0061 Letter to S. Smith & Sons Ltd regarding the testing of a thermostat and its bellows unit.
View original record 1328 April 6th.1938 Rm/Std.9/AP. Messrs S.Smith & Sons Ltd., Cricklewood Works, LONDON N.W.2. For the attention of Mr.Grose. Dear Sirs, We have run one of your thermostats to X30065/5 in a car for…

scan0062 Letter to The British Thermostat Co. Ltd. regarding thermostats and their replacements.
View original record 1328 April 8th.1938 Rm/CTS.2/AP. The British Thermostat Co.Ltd., Windmill Rd., Sunbury-on-Thames, MIDDLESEX. Your Ref.WMH/GN. Dear Sirs, We thank you for your letter and three thermostats. It is…

scan0063 Short telegram message confirming a convenient time for a meeting or call.
View original record 1328. bbllechy GROSL SPEEDOFAC, PHONE LONDON. WEDNESDAY AFTERNOON CONVENIENT. STEADMAN, ROYCAR.

scan0064 Letter from S. Smith & Sons regarding thermostat performance and bellows specifications after a 10,000-mile test.
View original record 1328 [Crest: THE ENGINEERING AND ALLIED EMPLOYERS' NATIONAL FEDERATION 1918] CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY TELEPHONE: GLADSTONE 3333 (20 LINES) TELEGRAMS: SPEEDOFAC, PHONE,…

scan0065 Letter from S. Smith & Sons regarding the examination of Bellows for thermostats.
View original record R.P.81 S. SMITH & SONS (Motor Accessories) LTD. CRICKLEWOOD WORKS, LONDON, N.W.2. CONTINUATION NO. 1 Messrs. Rolls-Royce Ltd. 9th April 1938. We have examined sixteen (16) Bellows taken at random from…

scan0066 Request for an official order to The British Thermostat Co. Ltd. for one thermostat.
View original record 1328. To Roy. from Rm/Std. c. G/JVH. Rm/Std.5/WH.11.4.38. Will you please send an official order to The British Thermostat Co. Ltd. for one thermostat to EB.3509, deg. BGA.3786. fitted with "Alumbro"…

scan0067 Letter to The British Thermostat Co. Ltd. regarding the testing and comparison of thermostats and heater motors.
View original record 1328 April 12th.1938. Rm/Std.3/AP. The British Thermostat Co.Ltd., Teddington Works, Windmill Road, Sunbury-on-Thames, MIDDLESEX. For the attention of Mr.Martin-Hurst. Dear Sirs, We have received your…

scan0068 Letter discussing the two fans used on a motor and their power consumption.
View original record -2- As regards the fan which we would use on your motor, the answer is two fans - one as per the one you sent us, the other a small blower fan as shown on attached print. The power consumptions quoted…

scan0069 Letter from The British Thermostat Co., Ltd. regarding sample thermostats, bellows, and heater switch wattage.
View original record 1328 Telephone: SUNBURY-ON-THAMES 456 (6 LINES) Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES. CODE: BENTLEY'S THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments. DIRECTORS: COL. N.…

scan0070 Letter from The British Thermostat Co. Ltd. regarding modifications to rheostats and a mislaid sample motor.
View original record Page 2 Messrs. Rolls-Royce Ltd. We are making certain modifications to our standard rheostats and will send you two for trial purposes to replace those which you returned to us burnt out. These will…

scan0071 Letter from The British Thermostat Co. Ltd. regarding a carburetter and thermostat units.
View original record 1328 Telephone: SUNBURY-ON-THAMES 456 (6 LINES) Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES. Code: BENTLEY'S THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments. DIRECTORS: COL. N.…

scan0072 Sending a thermostat to central stores for return to The British Thermostat Co. Ltd.
View original record 1328. To D/BP. Rm/Std.26/JH.22.4.38. We are sending into the central stores one thermostat to EB.3509 which is to be returned to The British Thermostat Co.Ltd., marked "For the attention of Mr.…

scan0073 Letter to The British Thermostat Co. Ltd. regarding the return and investigation of a sample thermostat with 'Alumbro' bellows.
View original record 1328 Rm/Std.7/MH. 22nd. April 1938. The British Thermostat Co. Ltd., Teddington Works, Windmill Road, Sunbury-on-Thames, MIDDSX. For the attention of Mr.Martin-Hurst. Dear Sirs, As arranged in our…

scan0074 Letter from The British Thermostat Co. regarding a water hammer issue caused by a bellows and valve area mismatch.
View original record Telephone: SUNBURY-ON-THAMES 456 (6 LINES) Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES. Code: BENTLEY'S 1328 . THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments. TEDDINGTON…

scan0075 Sending a thermostat to the Repair Stores for modification by the British Thermostat Co. Ltd.
View original record To D/BP. from Rm/Std. c. Hd/FC. 1328. Rm/Std.6/MH.25.4.38. We are sending into the Repair Stores one thermostat to EB.3509 - this is to be returned to the British Thermostat Co. Ltd., marked "For the…

scan0076 Request to detail a modified thermostat valve and thermostat casing with increased dimensions.
View original record r1328. To By/Ald. from Rm/Std. Rm/Std.4/MH.26.4.38. Will you please detail for us a thermostat valve as EB.680 but modified to be .125 greater in external diameter, and a thermostat casing as EB.619…

scan0077 Request to modify a casing and create two valves to test a thermostat modification for M series Bentley thermostats.
View original record O 1328. To HPS. from Rm/Std. c. By/Ald. Rm/Std.3/MH.20.4.38. We wish to test out a thermostat modification in connection with M series Bentley thermostats at the earliest possible moment. Will you…

scan0078 Letter from S. Smith & Sons regarding an investigation into a thermostat bellows that failed to fully open.
View original record FILE 1328 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY BY APPOINTMENT TO HIS MAJESTY THE KING TELEPHONE: GLADSTONE 3333 (20 LINES) TELEGRAMS: SPEEDOFAC, PHONE, LONDON. S. SMITH & SONS (Motor…

scan0079 Letter from S. Smith & Sons regarding an investigation into a thermostat bellows issue and the supply of new samples.
View original record 108 1328 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY BY APPOINTMENT TO HIS MAJESTY THE KING TELEPHONE: GLADSTONE 3333 (20 LINES) TELEGRAMS: SPEEDOFAC, PHONE, LONDON. CABLES: SPEEDOFAC, LONDON.…

scan0080 Letter to S. Smith & Sons Ltd. regarding the testing and supply of thermostats and heaters.
View original record 1328. Rm/Std.4/JH. 5th May, 1938. Messrs. S. Smith & Sons Ltd., Cricklewood Works, LONDON.N.W.2. For the attention of Mr. Grosé. Dear Sirs, We thank you for your letters of April 25th, April 27th and…

scan0081 Letter from S. Smith & Sons regarding the production of a smaller heater model and checking the length of bellows.
View original record S. Smith & Sons (Motor Accessories) Ltd CRICKLEWOOD WORKS, LONDON, N.W.2 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY TELEPHONE: GLADSTONE 3333 (20 LINES) TELEGRAMS: SPEEDOFAC, PHONE, LONDON.…

scan0082 Letter from S. Smith & Sons to Mr. C.S. Steadman regarding the despatch and specifications of two thermostats.
View original record 1328. CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY BY APPOINTMENT TO HIS MAJESTY THE KING TELEPHONE: GLADSTONE 3333 (20 LINES) TELEGRAMS: SPEEDOFAC, PHONE, LONDON. S. Smith & Sons (Motor…

scan0083 Thermostats and an order for two special units from the British Thermostat Co. Ltd.
View original record 1328 To Roy. from Rm/Std. c. C/JWH. Rm/Std.2/MH.10.5.38. THERMOSTATS (M SERIES) EB.3509. Referring to Rm/Std.1/MH.10.5.38 attached is a copy of letter to the British Thermostat Co. Ltd. re the trouble…

scan0084 Letter to the British Thermostat Co. Ltd. regarding the testing of bellows to eliminate water hammer and an adjustment to an order.
View original record All communications should be addressed to the Company and not to individuals. Rm/Std.3/AH. 10th. May 1938. The British Thermostat Co. Ltd., Teddington Works, Sunbury-on-Thames, MIDDLESEX. For the…

scan0085 Investigation into intermittent noise on 'M' series Bentley cars, traced to the thermostat valve operation and a proposed solution.
View original record To By.. from Rm/Std. c. HS. c. RHC. c. Roy. c. MX. RM/Std.1/MR.10.5.38. 1328 THERMOSTATS FOR M SERIES BENTLEY - FB.3509. As a result of complaints of intermittent occasional noise on experimental B.II…

scan0086 Instruction to hold production and fit a modified thermostat to M series Bentley car heaters to prevent noise complaints.
View original record -2- Rm/Std.1/MM.10.5.38. will By. please instruct the necessary hold up of production pieces, and also instruct that if a car heater is fitted on M series Bentley car, a thermostat modified as above…

scan0087 Internal request to send an official order for two thermostats already received from S. Smith & Sons Ltd.
View original record To Roy. from Rm/Std. c. G/JWH. 1328. Rm/Std.19/MH.11.5.38. Will you please send an official order to Messrs.S.Smith & Sons Ltd., for two thermostats to X.30065/7 (B.V. type). These have been received…

scan0088 Letter from The Drayton Regulator and Instrument Company Ltd regarding past correspondence and a proposal to supply Hydroflex bellows.
View original record ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY AND NOT TO INDIVIDUALS 1328 The Drayton Regulator and Instrument Company Limited TELEPHONE: WEST DRAYTON 2611 TELEGRAMS: DRAYREG W.DRAYTON CODE:…

scan0089 Further tests on thermostats for 'M' Series Bentley cars, focusing on valve and bellows combinations to resolve oscillation issues.
View original record To Bv. from Rm/Std. c. Hs. c. RHC. c. Roy. cc Mx. THERMOSTATS FOR 'M' SERIES BENTLEY E.B.3509. Further to our Rm/Std.1/MH.10.5.38, we have carried out further tests with regard to the question of…

scan0090 Letter concerning a rescheduled meeting to discuss Bellow requirements and to correct a typographical error from a previous letter.
View original record 1328 The Drayton Regulator and Instrument Company Limited TELEPHONE: WEST DRAYTON 2611 TELEGRAMS: DRAYREG W. DRAYTON CODE: BENTLEYS 2ND West Drayton, Middlesex, England. WORKS ADDRESS: HORTON ROAD…

scan0091 Letter to The Drayton Regulator & Instrument Co. Ltd. regarding a thermostat unit quote and bellows.
View original record 1328. Experimental Dept. Rm/Std.)/MH. 10th. May 1938. The Drayton Regulator & Instrument Co. Ltd., West Drayton, MIDDLESEX. For the attention of MR.B.T.Wingfield. Dear Sirs, Referring to your letter…

scan0092 Letter of complaint to S. Smith & Sons Ltd. regarding the exorbitant pricing of supplied experimental thermostats.
View original record Rm/Std.6/MH. 1328- Experimental Dept. 16th. May 1938. Messrs. S. Smith & Sons Ltd., Cricklewood Works, LONDON, N.W.2. For the attention of Mr.Grose. Dear Sirs, With regard to various thermostats (of…

scan0093 Letter requesting remarks on charges before settling an invoice for two units.
View original record -2- 16th. May 1938. We would like to have your remarks on the question of these charges, pending which we have held up the settlement of the invoice for the last two units. Yours faithfully, for…

scan0094 Price list for various thermostat models, detailing specific orders from January to May 1938.
View original record Rm/Std.6/MH.16.5.38. LIST OF THERMOSTATS & PRICES ETC. Order No. Date Ordered. No. Ordered. Type of Thermostat. Price Charged. 55225 12.1.38 1 X.30065 with 1 1/4" valve and 78-80°C open. £1/13/6d.…

scan0095 Letter from a supplier discussing charges for sample thermostats and offering a loan arrangement for experimental units.
View original record 106 1328 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY TELEPHONE: GLADSTONE 3333 (20 LINES) TELEGRAMS: SPEEDOFAC, PHONE, LONDON. S. Smith & Sons (Motor Accessories) Ltd CRICKLEWOOD WORKS LONDON,…

scan0096 Request to send a covering order for 6 sample bellows to The Drayton Regulator & Instrument Co.Ltd.
View original record To Roy/MS. 1320 Rm/Les.12/JH.20.5.38. Will you please send a covering order to - The Drayton Regulator & Instrument Co.Ltd., West Drayton, MIDDLESEX. for 6 sample bellows GW.736. O/N.52435. Rm/Les.

scan0097 Request for a covering order for 6 sample bellows to be sent to The Drayton Regulator & Instrument Co.Ltd.
View original record 1328. To Roy/MS. Rm/Les.12/JH.20.5.38. Will you please send a covering order to - The Drayton Regulator & Instrument Co.Ltd., West Drayton, MIDDLESEX. for 6 sample bellows GW.736. O/N.52435. Rm/Les.

scan0098 Letter to The Drayton Regulator & Instrument Co. Ltd regarding pricing and a request for sample bellows.
View original record 328? EXPERIMENTAL DEPT. Rm/Les.11/JH. 20th May. 1938. The Drayton Regulator & Instrument Co.Ltd, West Drayton, MIDDLESEX. Dear Sirs, Thank you for your letter of the 19th inst. which has been handed…

scan0099 Letter to S. Smith & Sons Ltd. regarding charges for experimental thermostat units and drawings for a heater.
View original record c. Roy, Rm/Std.5/MH. Messrs.S.Smith & Sons Ltd., Cricklewood Works, LONDON, N.W.2. For the attention of Mr.Grose. Experimental Dept. 21st. May 1938. 1328. Dear Sirs, Referring to your letter of 19th.…

scan0100 Letter from S. Smith & Sons regarding the transfer of two thermostats to a loan account.
View original record 108 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY TELEPHONE: GLADSTONE 3333 (20 LINES) TELEGRAMS: SPEEDOFAC, PHONE, LONDON. S. Smith & Sons (Motor Accessories) Ltd CRICKLEWOOD WORKS LONDON,…

scan0101 Requesting the return of a thermostat for modification by the British Thermostat Co.
View original record 1328. To D/BP. c. to Hd/FC. Rm/Std.27/JH.25.5.38. We send you herewith a thermostat No.BGA.3754. Will you please return this to the British Thermostat Co. for modification as per our letter of even…

scan0102 Letter to The British Thermostat Co. Ltd. regarding the acceptance of an undersized thermostat order and the return of a sample for adjustment.
View original record Experimental Dept. Rm/Std.3/MH. 25th. May 1938. The British Thermostat Co. Ltd., Teddington Works, Windmill Road, Sunbury-on-Thames, MIDDLESEX. 1328. For the attention of Mr.Martin-Hurst. Dear Sirs,…

scan0103 Postscript regarding a distorted bellows unit with a dropped open setting temperature.
View original record -2- 25th. May 1938. P.S. On examination the bellows supporting the frame of this unit (which has only done a little running) appears to have distorted and the open setting has actually dropped to…

scan0104 Letter regarding pressure testing of a Bentley thermostat unit and performance of heater motor rheostats.
View original record 1328 Telephone: SUNBURY-ON-THAMES 456 (6 LINES) THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments. Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES. CODE: BENTLEY'S DIRECTORS: COL. N.…

scan0105 Letter to S.Smith & Sons Ltd requesting details on an S.U. carburetter thermostatic control and the return of a Hadees car heater.
View original record 1328 Experimental Dept. Rm/Std.7/MH. 26th. May 1938. Messrs.S.Smith & Sons Ltd., Cricklewood Works, LONDON, N.W.2. For the attention of Mr.Grosé. Dear Sirs, The writer would very much like you to let…

scan0106 Letter from The British Thermostat Co., Ltd. regarding thermostats, associated drawings, and an agreement to use up existing stock.
View original record 1328 Telephone: SUNBURY-ON-THAMES 456 (6 LINES) Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES. Code: BENTLEY'S [Logo: FBI INCORPORATED BY ROYAL CHARTER] [Logo: B IN A CIRCLE, REGISTERED TRADE…

scan0107 Request to detail and instruct an adaptor for fitting a thermostat into a Bentley III thermostat casing.
View original record 1328 To By/Ald. Rm/Std.2/JH.26.5.38. Will you please detail and instruct an adaptor for fitting thermostat EB.2410 into the latest Bentley III thermostat casing. 2 sets should be instructed. Rm/Std.

scan0108 Letter to The British Thermostat Co. Ltd. regarding failures in a thermostat unit due to metal particles on the magnet.
View original record 1328 EXPERIMENTAL DEPARTMENT. Rm/CTC.2/JH. 27th May. 1938. The British Thermostat Co.Ltd., Teddington Works, Windmill Road, Sunbury-on-Thames, MIDDLESEX. For the attention of Mr. Martin-Hurst. Dear…

scan0109 Letter regarding a buckled thermostat frame and adjustments to its opening temperature.
View original record 1328 Telephone: SUNBURY-ON-THAMES 456 (6 Lines) Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES. Code: BENTLEY'S THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments. TEDDINGTON WORKS.…

scan0110 Letter from The Drayton Regulator and Instrument Company Ltd. to Bentleys Motors Ltd. regarding thermostatic units for motor car radiators.
View original record [Handwritten top left in red pencil: N/W] [Handwritten top center: R 1328 STEADMAN] [Stamped top right: H S JUN 13 1938] The Drayton Regulator and Instrument Company Limited TELEPHONE: WEST DRAYTON…

scan0111 Letter to The Drayton Regulator & Instrument Co. Ltd. regarding a proposal for a replica Harrison thermostat.
View original record 1328 Experimental Dept. Rm/Std.14/MH. 15th. June 1938. The Drayton Regulator & Instrument Co. Ltd., WEST DRAYTON, MIDDLESEX. PCL 101/REA/MH/RM cots Letter 10/6/38 For the attention of Mr.Wingfield.…

scan0112 Letter from The Drayton Regulator and Instrument Co. Ltd regarding a misdirected communication and the return of a Harrison unit.
View original record 1328? The Drayton Regulator and Instrument Company Limited TELEPHONE: WEST DRAYTON 2611 TELEGRAMS: DRAYREG W. DRAYTON CODE: BENTLEY'S 2ND West Drayton, Middlesex, England. WORKS ADDRESS: HORTON ROAD…

scan0113 Request to obtain, modify, and fit a Bentley 'M' series production thermostat housing to assembly 6.B.IV.
View original record 1328 To HPS. from Rm/Std. Rm/Std.7/MH.22.6.38. Will you please obtain one Bentley 'M' series production thermostat housing complete with all fittings, except thermostat unit itself, modify it to…

scan0114 New drawings and required parts for a Bentley 111 Thermostat Unit.
View original record HFS. Rm. Rm/Std. 1328 BY/Ald.6/G.S.7.38. BENTLEY 111. CYLINDER. SECTION 5050. THERMOSTAT UNIT. Please receive herewith two blueprints of the following new drawings, detailed in accordance with…

scan0115 Letter from Wilmot-Breeden Ltd. regarding a sample wax-filled thermostat tube with a melting point of 85 degrees Centigrade.
View original record File 1328 ALL COMMUNICATIONS TO HEAD OFFICES, CAMDEN ST. PHONE: CENT 8641 (18 LINES) LONDON OFFICE & FITTING STATION SUNBEAM ROAD, CHASE ROAD, NORTH ACTON, N. W. 10 PHONE: WILLESDEN 7321 (5 LINES)…

scan0116 Request to despatch two faulty thermostats to the British Thermostat Co. Ltd. for rectification.
View original record To D/BP. c. to Hd/FC. 1328 Rm/Std.10/JH.25.8.38. Will you please despatch to the British Thermostat Co.Ltd., the two thermostats to EB.3509 which we are sending into the central stores. These are…

scan0117 Discrepancy between the drawing and the manufactured 'M' Series Bentley Thermostat Casing.
View original record To By. c. to RHC. c. to By/NS. 'M' SERIES BENTLEY THERMOSTAT CASING - EB.619. It will be remembered that a cast-in baffle was added to this casing to protect the thermostat bellows from any…

scan0118 Return of a faulty production thermostat to the supplier, The British Thermostat Co.
View original record 1328. To D/BP. from Rm/Std. c. Hq/PC. c. Roy/JT. Rm/Std.15/WH.31.8.38. We are sending into the Stores one thermostat to EB.3509, which is production stock and is faulty. We have checked it and wish it…

scan0119 Return of two faulty thermostats to the supplier for correction and subsequent return to production stock.
View original record 1328 To D/BP. c. to Hd/FC. c. to Roy/JT. Rm/Std.12/JH.7.9.38. We are sending into Central stores two thermostats to EB.3509 taken from production stocks which are faulty - will you please forward them…

scan0120 Thermostat issues and revised settings for the Bentley M series chassis.
View original record 132-8 To EA. c. to.RHC. c. to BY. Rm/Std.6/JH.7.9.38. BENTLEY M SERIES THERMOSTATS. A good deal of trouble has been experienced on M series chassis with incorrectly set thermostats and this is…

scan0121 Complaint letter to The British Thermostat Co. Ltd. regarding thermostat units not meeting the specified temperature limits.
View original record c. B c. RHC. Rm/Std.1/MH. Experimental Dept. 7th. September 1938. The British Thermostat Co. Ltd., Teddington Works, Windmill Road, Sunbury-on-Thames, MIDDX. For the attention of Mr. Martin-Hurst.…

scan0122 Letter to The British Thermostat Co. Ltd. outlining thermostat testing procedures and returning defective units.
View original record The British Thermostat Co.Ltd. -2- 7th. September 1938. Will you please ensure, therefore, that all thermostats delivered, either new ones or ones returned for correction, are definitely within the…

scan0123 Letter regarding the testing of two thermostats, model EB.3509, one of which was found to be faulty.
View original record Telephone: SUNBURY-ON-THAMES 456 (6 LINES) 1328 Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES. Code: BENTLEY'S THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments. Windmill Road,…

scan0124 Letter from The British Thermostat Co. Ltd. regarding issues with adjusting thermostat spindles and confirming unit prices.
View original record Page 2 Messrs. Rolls-Royce Ltd. after final inspection a thermostat is found to be slightly off range, it is very difficult to put it right again due to the presence of this pin. If the pin is drilled…

scan0125 Letter to The British Thermostat Co. Ltd. regarding the practice of pinning the spindle on thermostats.
View original record 1328 Experimental Dept. Rm/Std.6/MH. 14th. September 1938. The British Thermostat Co. Ltd., Teddington Works, Windmill Road, Sunbury-on-Thames, MIDDX. For the attention of Mr.Martin-Hurst. Dear Sirs,…

scan0126 Return of three Smith's thermostats to the manufacturer for alteration.
View original record To D/BP. from Rm/Std. c. Hd/FC. 1328 Rm/Std.3/MH.15.9.38. We are sending in to the Despatch Stores three Smith's thermostats, type 'BV' X.30065/7 and generally to EB.3770. Will you please return them…

scan0127 Letter to S. Smith & Sons Ltd. regarding the return and re-setting of three thermostats.
View original record 1328 Experimental Dept. Rm/Std.2/MH. 15th. September 1938. Messrs. S.Smith & Sons Ltd., Cricklewood Works, LONDON, N.W.2. For the attention of Mr.Grosé. Dear Sirs, We are today returning to you three…

scan0128 Letter from S. Smith & Sons regarding the return of three calibrated thermostats for the attention of Mr. C.S. Steadman.
View original record 105 1325 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY S.Smith & Sons (Motor Accessories) Ltd CRICKLEWOOD WORKS LONDON, N.W.2 TELEPHONE: GLADSTONE 3333 (20 LINES) TELEGRAMS: SPEEDOFAC, PHONE,…

scan0129 Letter to The British Thermostat Co. Ltd. seeking comment on a suggestion for thermostat inspection.
View original record 1328 Experimental Dept. Rm/Std.14/MH. 22nd. September 1938. The British Thermostat Co. Ltd., Teddington Works, Windmill Road, Sunbury-on-Thames, MIDDX. For the attention of Mr.Martin-Hurst. Dear Sirs,…

scan0130 Letter from The British Thermostat Co. Ltd. regarding a manufacturing and testing difficulty with Bentley Thermostats and the new jig created to resolve it.
View original record Telephone: SUNBURY-ON-THAMES 456 (6 LINES) Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES. Code: BENTLEY'S THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments. DIRECTORS: COL. N.…

scan0131 Letter from The British Thermostat Co. Ltd. responding to an enquiry about Part No. E.18650, advising against a specification for extending bellows.
View original record Page 2 Messrs. Rolls-Royce Ltd. Enquiry which we received from you dated September 22nd with regard to Part No. E.18650. The specification requires that the bellows shall be extended in the hot…

scan0132 Dispatch of a faulty Callorstat from chassis GRO-52 for examination.
View original record File 1328 RM/Std. ~~D/BP/WH.~~ Hd/HER14/JMB. 3.10.38. CHASSIS GRO-52. 0/48505. [Illegible signature] We are sending you herewith one E80893■ - Callorstat ex above chassis for your examination…

scan0133 Faulty Callorstat from chassis GXM-60 being sent for examination.
View original record File 1328 RM/Std. C.D/BP/WH. Hd/HER13/JMB. 3.10.38. CHASSIS GXM-60. 0/48504. [handwritten signature] We are sending you herewith one E80893A - Callorstat ex above chassis for your examination…

scan0134 The repair and replacement procedure for faulty thermostats and thermometers.
View original record N/W. Hdx. 1328 Br/G7/G.29-9-38. c - Rm/Std. re. Tech - General. Into R S M Rm/Std.2/MH.27-9-38. As far as we are concerned, all Thermostats are returned to the Works, for repair as usual - we have…

scan0135 Returned calorstat from chassis GRP-38, supplied by Dex Garages, Ltd.
View original record Fili 1328 Rm/Std [Illegible signature] D/BP/Bm6/JW.5th,Oct. 1938 Del due 5/7/37 re: Chassis No. GRP-38 - Dex Garages, Ltd. Opens 4° late We attach hereto BS. 44676, in respect of a calorstat returned…

scan0136 The examination of a Calorstat from chassis GRP-38 for Dex Garages.
View original record Rm/Std. FA 1328 Hd/HER6/JMB. 7.10.38. Del date 5/7/37 h/wd Rm/Std opens 4° late CHASSIS NO. GRP-38. DEX GARAGES. Please receive herewith one Calorstat ex above chassis for your examination. We shall…

scan0137 Responding to complaints about calorstats on chassis GXM.60 & GRO.52, detailing test results and concluding the issue is likely sticking shutters.
View original record 1328 To Hd. from Rm/Std. c. Br. W/N. c. Roy/JT. Rm/Std.3/MH.6.10.38. CALORSTAT COMPLAINTS - GXM.60 & GRO.52. Referring to your memos Hd/HER.14/JMB.3.10.38 and Hd/HER.13/JMB.3.10.38, we have received…

scan0138 Dispatch of two calorstats to be returned for alteration to their settings.
View original record To D/BP. c. to Hd/FG. 1328. Rm/Std.9/JH.6.10.38. We are sending into the despatch stores two calorstats to E.80893 - will you please despatch these to Messrs. S. Smith & Sons Ltd., marking them for…

scan0139 Letter to a supplier regarding complaints and specification ambiguity for calorstats.
View original record 1328 EXPERIMENTAL DEPARTMENT. Rm/Std.4/JH. 6th October, 1938. Messrs. S. Smith & Sons Ltd., Cricklewood works, LONDON.N.W.2. For the attention of Mr. Eckford. Dear Sirs, The writer has had some…

scan0140 Letter requesting the alteration of settings on two returned units to test for potential cost reduction.
View original record -2- Rm/Std.4/JH. 6th October, 1938. With regard to the question of accuracy of these units, we are returning to you two units and would like you to alter the setting of these respectively to a 3°C…

scan0141 Clarifying the return procedure for faulty calorstats and thermometers involving the supplier S. Smith & Sons Ltd.
View original record W/N. To Br. from Rm/Std. c. Hd. Rm/Std.1/MH.8.10.38. 1328 Referring to Br/07/C.29.9.38, we were under the impression that you returned faulty calorstats direct to Messrs. S. Smith & Sons Ltd. -…

scan0142 Letter from British Thermostat Co. proposing a design modification to prevent drill breakages during the manufacture of the Bentley Thermostat.
View original record Telephone: SUNBURY-ON-THAMES 456 (6 LINES) Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES. Code: BENTLEY'S THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments. TEDDINGTON WORKS.…

scan0143 The second page of a letter from The British Thermostat Co. Ltd.
View original record Page 2 Messrs. Rolls-Royce Ltd. have an early reply. Yours truly, THE BRITISH THERMOSTAT CO.LTD. W.Martin-Hurst. ENCL:

scan0144 Letter from S. Smith & Sons discussing the load and temperature performance of shutter 'calostats'.
View original record 105 1328 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY BY APPOINTMENT TO HIS MAJESTY THE KING S.Smith & Sons (Motor Accessories) Ltd CRICKLEWOOD WORKS LONDON, N.W.2 TELEPHONE: GLADSTONE 3333 (20…

scan0145 Letter to The British Thermostat Co. Ltd. regarding a proposed modification to a spindle.
View original record EXPERIMENTAL DEPARTMENT. Rm/Std.10/JH. 12th October, 1938. The British Thermostat Co.Ltd., Teddington Works, Windmill Road, Sunbury-on-Thames, MIDDLESEX. For the attention of Mr. Martin-Hurst. 1328.…

scan0146 Dealing with thermometers, including sourcing from Smiths' direct and requesting more stock.
View original record N/W. - Rm/Std. c - Hd. c - D/BP. Br/G20/G.13-10-38. re. - Tech - General. [Handwritten Signature: hWd Ruysdael] Rm/Std.1/MH.8-10-38. /13289 Dealing with the Thermometers, we will arrange to do this,…

scan0147 Letter from The British Thermostat Co. Ltd. regarding a spindle sent for approval.
View original record Handwritten: File 1328 Telephone: SUNBURY-ON-THAMES 456 (6 LINES) Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES. Code: BENTLEY'S THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments.…

scan0148 Letter to The British Thermostat Co. Ltd. agreeing to the modification of all spindles after a successful sample.
View original record 1328 Experimental Dept. Rm/Std.3/MH. 18th. October 1938. The British Thermostat Co. Ltd., Teddington Works, Windmill Road, Sunbury-on-Thames, MIDDX. For the attention of Mr.Martin-Hurst. Dear Sirs,…

scan0149 Letter to S. Smith & Sons Ltd. regarding the testing and return of calorstat units for Bentley cars.
View original record 1328 Experimental Dept. Rm/Std.2/MH. 19th. October 1938. Messrs. S.Smith & Sons Ltd., Cricklewood Works, London, N.W.2. For the attention of Mr.F.G.Eckford. Dear Sirs, We thank you for your letter of…

scan0150 Letter regarding a modified sample spindle, advising the recipient to carry out the work due to having no stock.
View original record Telephone: SUNBURY-ON-THAMES 456 (6 LINES) Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES. Code: BENTLEY'S THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments. TEDDINGTON WORKS.…

scan0151 Letter to The British Thermostat Co. Ltd. regarding unsatisfactory rheostat samples and sourcing of alternative parts.
View original record 1328 Experimental Dept. Rm/Std.9/MH. 31st. October 1938. The British Thermostat Co. Ltd., Teddington Works, Windmill Road, Sunbury-on-Thames, MIDDX. For the attention of Mr. Martin-Hurst. Dear Sirs,…

scan0152 Letter from The British Thermostat Co. explaining a delay and incompatibility with a thermostat fitted with diaphragm bellows.
View original record 1328 Telephone: SUNBURY-ON-THAMES 456 (6 LINES) Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES. Code: BENTLEY'S THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments. DIRECTORS: COL. N.…

scan0153 Page two of a letter from The British Thermostat Co. Ltd.
View original record Page 2 Messrs. Rolls-Royce Ltd. us know exactly what you would like us to supply. Yours truly, THE BRITISH THERMOSTAT CO.LTD. p.p. W.Martin-Hurst. Director.

scan0154 Request to place an order for thermostats from S. Smith & Sons Ltd.
View original record γ 1328 To Roy/Ms. from Rm/Std. c. c. G/JWH. Rm/Std.14/MH.11.11.38. Will you please send an order to Messrs. S. Smith & Sons Ltd. for 2.B.V. Type thermostats as per attached letter from them. Rm/Std.

scan0155 Letter from S. Smith & Sons regarding the testing and modification of shutter operating thermostat samples.
View original record 108 1328 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY S. Smith & Sons (Motor Accessories) Ltd CRICKLEWOOD WORKS LONDON, N.W.2 TELEPHONE: GLADSTONE 3333 (20 LINES) TELEGRAMS: SPEEDOFAC, PHONE,…

scan0156 Letter from the Experimental Department returning 3 failed calorstats and requesting a report on the cause of failure.
View original record 1328 EXPERIMENTAL DEPARTMENT. Rm/ABR.14/JH. 17th. November, 1938. Messrs. S. Smith & Sons Ltd., Cricklewood Works, LONDON.N.W.2. For the attention of Mr. Eckford. Dear Sirs, We have returned 3…

scan0157 Letter from S. Smith & Sons regarding the examination and reconditioning of returned calostats.
View original record 105 1328? CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY ENGINEERING AND ALLIED EMPLOYERS NATIONAL FEDERATION 1918 BY APPOINTMENT TO HIS MAJESTY THE KING TELEPHONE: GLADSTONE 3333 (20 LINES)…

scan0158 Letter to The British Thermostat Co. Ltd. discussing the reliability and testing of diaphragm bellows for a thermostat unit.
View original record 1328 Experimental Dept. Rm/Std.6/MH. 24th. November 1938. The British Thermostat Co. Ltd., Teddington Works, Windmill Road, Sunbury-on-Thames, MIDDX. For the attention of Mr. Martin-Hurst. Dear Sirs,…

scan0159 Letter from S. Smith & Sons regarding test results for three returned calorstats.
View original record 105 1328 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY TELEPHONE: GLADSTONE 3333 (20 LINES) TELEGRAMS: SPEEDOFAC, PHONE, LONDON. CABLES: SPEEDOFAC, LONDON. CODES: MARCONI, COMMERCIAL, BENTLEY'S.…

scan0160 Test results for four returned calorstats from different chassis.
View original record 1328 & 561 To Hd. from Rm/Std. c. D/BP. c. Roy/JT. Rm/Std.7/MH.24.11.38. With regard to various calorstats which have been returned to us for examination, the following are the results of our tests:-…

scan0161 Letter from The British Thermostat Co., Ltd. regarding the suitability of diaphragm type bellows versus spun bellows for a thermostat.
View original record 1328 Telephone: SUNBURY-ON-THAMES 456 (6 LINES) Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES. Code: BENTLEY'S [Logo: FBI] FEDERATION OF BRITISH INDUSTRIES INCORPORATED BY ROYAL CHARTER [Logo: JB]…

scan0162 Requesting the return of repaired Callorstats due to a stock shortage.
View original record File 2328 N/W. Hd. c D/BP. c Rm/STD. Br/G16/M. 1.12.38. Initial Mm/STD re, Stores Stock. We have no stock of E/80893a Callorstats, owing to ours being with you for repair. Will you please let us have…

scan0163 Letter from S. Smith & Sons regarding the performance of a 'Smithermet' Radiator Shutter filled with Hexane.
View original record Juli 1328 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY S.SMITH & Sons (Motor Accessories) Ltd TELEPHONE: GLADSTONE 3333 (20 LINES) TELEGRAMS: SPEEDOFAC, PHONE, LONDON. CABLES: SPEEDOFAC,…

scan0164 Letter to S. Smith & Sons Ltd. regarding the return of six defective calorstats for repair.
View original record 1328 Experimental Dept. RM/Std.5/MH. 5th. December 1938. Messrs. S.Smith & Sons Ltd., Cricklewood Works, LONDON, N.W.2. For the attention of Mr. Eckford. Dear Sirs, We are to-day returning for Mr.…

scan0165 Letter from S. Smith & Sons regarding the return and reconditioning of six faulty Calorstats.
View original record 105 File 1328 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY BY APPOINTMENT TO HIS MAJESTY THE KING TELEPHONE: GLADSTONE 3333 (20 LINES) TELEGRAMS: SPEEDOFAC, PHONE, LONDON. CABLES: SPEEDOFAC,…

scan0166 Letter from The British Thermostat Co., Ltd. regarding a thermostat for an 'SU' Starting Carburetter.
View original record 1328 Telephone: SUNBURY-ON-THAMES 456 (6 LINES) [Logo: FBI INCORPORATED BY ROYAL CHARTER] DIRECTORS: COL. N. HUDSON. J. E. SHERLOCK } MANAGING. W. F. F. MARTIN HURST } F. G. POPLETT. F. PARMENTER.…

scan0167 Letter from The British Thermostat Co. Ltd. discussing a modification to an 'SK' Refrigeration Thermostat.
View original record Page 2 Messrs. Rolls-Royce Ltd. "SK" Refrigeration Thermostat, shown on Drawing No.SK/A/1A could be modified to act as a pressure control, and being smaller and mounted in a metal case, might prove…

scan0168 Letter from S. Smith & Sons regarding the testing, reconditioning, and return of six 'calorstat' units.
View original record 105 1328? CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY BY APPOINTMENT TO HIS MAJESTY THE KING ENGINEERING AND ALLIED EMPLOYERS' NATIONAL FEDERATION 1896 TELEPHONE: GLADSTONE 3333 (20 LINES)…

scan0169 Letter from The British Thermostat Co., Ltd. regarding different types of thermostats, referencing an article in 'The Motor'.
View original record 1328 Telephone: SUNBURY-ON-THAMES 456 (6 LINES) Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES. Code: BENTLEY'S THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments. TEDDINGTON WORKS.…

scan0170 Technical information sheet discussing the merits of by-pass versus non-by-pass motor car thermostats.
View original record [Handwritten] Juli 1328 [Handwritten] T THE BRITISH THERMOSTAT COMPANY LTD. Windmill Road, Sunbury-on-Thames, Middlesex. TECHNICAL INFORMATION SHEET NO. 410. [Handwritten Signature] W Ryson MOTOR CAR…

scan0171 The function of engine cooling by-pass systems and general observations on bellows thermostats.
View original record - 2 - By-Pass Systems. When a by-pass is provided from some position below the valve head back to the suction side of the pump, circulation through the cylinder block and head takes place irrespective…

scan0172 Sending a thermostat unit for examination and repair to the British Thermostat Co. Ltd.
View original record 1328 To D/BP. from Rm/Std. c. Hd/FC. Rm/Std.8/MH.28.12.38. We are sending into The Despatch Stores, one thermostat unit - will you please return this to the British Thermostat Co. Ltd. for examination…

scan0173 Letter to the British Thermostat Co. Ltd. returning a failed thermostat unit for repair and requesting a failure report.
View original record 1328 EXPERIMENTAL DEPARTMENT. Rm/Std.9/MH. 28th. December, 1938. The British Thermostat Co.Ltd., Teddington Works, Windmill Road, Sunbury-on-Thames, MIDDX. For the attention of Mr. Martin-Hurst. Dear…

scan0174 Letter from The British Thermostat Co. Ltd. acknowledging the return of a failed thermostat unit.
View original record 1328 Telephone: SUNBURY-ON-THAMES 456 (6 LINES) Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES. Code: BENTLEY'S THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments. Windmill Road,…

scan0175 Calorstat from chassis B.55-LE sent for examination.
View original record 1328 Rm/Std. c. Roy/JT. c. D/BP. Hd/HER5/JMB. 31.12.38. [Handwritten Signature] CHASSIS NO. B.55-LE. ----------- Please receive herewith one calorstat ex chassis above for your examination. We shall…

scan0176 Instructing the despatch of a calorstat unit to S. Smith & Sons Ltd for Mr. Eckford.
View original record 1328 To D/BP. Hd/FC. Rm/Ed.11/JH.2.1.39. We are sending into the despatch stores one calorstat unit and we should be glad if you would despatch this to Messrs. S. Smith & Sons Ltd., Cricklewood Works,…

scan0177 Letter to S. Smith & Sons Ltd. concerning the return of a defective calorstat for examination and repair.
View original record 1328. EXPERIMENTAL DEPARTMENT. Rm/Ed.1/JH. 2nd. January 1939. Messrs. S. Smith & Sons Ltd., Cricklewood Works, LONDON.N.W.2. For the attention of Mr. Eckford. Dear Sirs, We are today returning for Mr.…

scan0178 Letter from The British Thermostat Co. Ltd. explaining the failure of a Bentley Thermostat bellows.
View original record 1328 Telephone: SUNBURY-ON-THAMES 456 (6 LINES) Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES. Code: BENTLEY'S THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments. TEDDINGTON WORKS.…

scan0179 Invoice for a carburetter thermostat from The British Thermostat Co. Ltd and requesting payment authorization.
View original record 1328 Rm/Std. G/WFH/CA.22/WP.16.1.39. We have an invoice from The British Thermostat Co. Ltd dated 13th December, charging us 3/ld for 1 - S.U. Carburetter Thermostat to Drawing B.G.A.3558.A -…

scan0180 Request to send an official order for an S.U. Carburetter Thermostat to The British Thermostat Co. Ltd.
View original record 1328 To Roy. from Rm/Std. c. G/JWH. Rm/Std.1/MH.19.1.39. Will you please send an official order to The British Thermostat Co. Ltd. for 1 S.U. Carburetter Thermostat to drawing B.G.A.9558.A. -…

scan0181 Outlining a new procedure for returning failed thermometers, calorstats, and thermostats directly to the makers.
View original record 1328? To Hd. c. to Br. Rm/FJH.16/JH.2.2.39. FAILURE OF THERMOMETERS, CALORSTATS, & THERMOSTATS ON CUSTOMERS' CHASSIS. At present thermometers, calorstats, and thermostats which fail on customers cars…

scan0182 Follow-up letter to S. Smith & Sons Ltd. regarding the repair and return of three calorstats.
View original record 1328? Experimental Dept. Rm/FJH.7/MH. 3rd. February, 1939. Messrs. S.Smith & Sons Ltd., Cricklewood works, LONDON, N.W.2. For the attention of Mr. Eckford. Dear Sirs, Will you please let us know…

scan0183 Repair process for thermostats and a proposal to deal directly with the makers.
View original record 1328 N/W. Rm/FJH. c. Hd. Br/G9/G.4-2-39. re. Tech. General. Thanks for your Rm/FJH.16/JH.2-2-39, the contents of which we note. In every case in the past, it has always been our practise to send all…

scan0184 Identifying the makers of faulty thermostats for direct repair.
View original record 1328 Rm/FJH. Hd/HER22/JMB. 6.2.39. re TECHNICAL GENERAL. Referring your memo Br/G9/G.4.2.39., regarding the sending of faulty Thermostats direct to Makers for repair. The Makers of the E.80893a and…

scan0185 Discontinuing the practice of testing allegedly faulty instruments like thermometers and thermostats before returning them to makers.
View original record Rm/FJH. Cr. Hd. C. Br. 1280 1328. AH. Roy/JT.11/JW. 6.2.39. Re Failure of Instruments on Clients' Cars. With reference to your memo Rm/FJH.16/JH dated 2nd inst., subject above, the action taken by…

scan0186 Letter to S. Smith & Sons Ltd. regarding the testing of a 'Hexane' filled calorstat that operates at a lower temperature than the standard.
View original record 1328 Experimental Dept. Rm/FJH.7/MH. 6th. February, 1939. Messrs. S.Smith & Sons Ltd., Cricklewood Works, LONDON, N.W.2. For the attention of Mr. Eckford. Dear Sirs, We have tested "Hexane" filled…

scan0187 The process for handling failure reports for thermometers or thermostats from Smiths'.
View original record N/W. Rm/FJH. C. ROY/JT. C. Hd. 1328 Br/G22/G.7-2-39. re. Tech - General. ROY/JT.11/JW.6-2-39 - Hd/HER22/JMB.6-2-39. We have explained the matter to Smiths' and have asked them to send a report to…

scan0188 Letter from S. Smith & Sons regarding performance issues with 'Hexane' filled thermostats and bellows.
View original record CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY S. SMITH & SONS (Motor Accessories) Ltd. CRICKLEWOOD WORKS LONDON, N.W.2 TELEPHONE: GLADSTONE 3333 (20 LINES) TELEGRAMS: SPEEDOFAC, PHONE, LONDON.…

scan0189 Letter from S. Smith & Sons regarding the return of three tested Calorstats E. 80893.
View original record 105 1328 ENGINEERING AND ALLIED EMPLOYERS' NATIONAL FEDERATION 1896 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY BY APPOINTMENT TO THE LATE KING GEORGE V TELEPHONE: GLADSTONE 3333 (40 LINES)…

scan0190 Scrapped calorstat for Bentley Chassis B.55.LE, requesting confirmation and billing details for a replacement.
View original record 1328 Rm/Std. D/BP/DW18/CV.10.2.39. Re: Bentley Chassis B.55.LE - Clyde Autos. Order No. 49701. With reference to the calorstat which was handed to you on the 31st December for examination, we…

scan0191 Calorstat for chassis GRP.38 of Dex Garages Ltd.
View original record 1328 To D/BP. from Rm/FJH. c. Roy/JT. Rm/FJH.9/MH.10.2.39. RE CHASSIS NO. GRP.38 - DEX GARAGES LTD. Re your memo D/BP/Bm.8/JW.27.1.38. We have now heard from Messrs. S.Smith & Sons that the calorstat…

scan0192 Return of a special Hexane filled calorstat to S. Smith & Sons for alteration.
View original record To Hd/FC. c. D/BP. 1328 Rm/FJH.7/B.15.2.39. Will you please return to Messrs. S. Smith & Sons (MA) Ltd. marked "For the attention of Mr. Eckford", the special Hexane filled calorstat which we have…

scan0193 Letter chasing up test results for a failed calorstat returned to S. Smith & Sons Ltd.
View original record 1328 Rm/FJH 19/ER 15th February, 1939. Messrs. S. Smith & Sons Ltd., Cricklewood Works, London N.W.2. For the attention of Mr Eckford. Dear Sirs, On the 2nd January, we returned to you a calorstat…

scan0194 Letter from S. Smith & Sons acknowledging a query concerning a calorstat.
View original record 109 1328? CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY TELEPHONE: GLADSTONE 3333 (40 LINES) TELEGRAMS: SPEEDOFAC, PHONE, LONDON. CABLES: SPEEDOFAC, LONDON. CODES: MARCONI, COMMERCIAL,…

scan0195 Letter to Messrs. Henry Wiggin & Co. Ltd. requesting a Data Book and information on Wilco-Wiggin Thermometal.
View original record 1328 EXPERIMENTAL DEPARTMENT. Rm/TAS.24/JH. 21st. February, 1939. Messrs. Henry Wiggin & Co.Ltd., Thames House, Millbank, LONDON.S.W.1. Dear Sirs, We should be obliged if you would forward to us a…

scan0196 Internal request to place an official order for a special thermostat with a custom temperature setting.
View original record 1328 To Roy. from Rm/FJH. c. G/JWH. Rm/FJH.8/MH.22.2.39. Will you please send an official order to The British Thermostat Co. Ltd. for one special thermostat to our EB.3509, but set to open at 68-70°C…

scan0197 Request to The British Thermostat Co. for a custom thermostat and a modified thermostatic relief valve for an experimental car.
View original record 1328 Experimental Dept. Rm/FJH.7/MH. 22nd. February, 1939. The British Thermostat Co. Ltd., Teddington Works, Windmill Road, Sunbury-on-Thames, MIDDX. For the attention of Mr. Martin-Hurst. Dear Sirs,…

scan0198 Letter from S. Smith & Sons regarding the repair and free of charge replacement of a Smithermet from chassis GGR-63.
View original record 105 13287 6003 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY ENGINEERING AND ALLIED EMPLOYERS NATIONAL FEDERATION 1926 TELEPHONE: GLADSTONE 3333 (40 LINES) TELEGRAMS: SPEEDOFAC, PHONE, LONDON.…

scan0199 Requesting the despatch of a special Hexane filled calorstat to S.Smith & Sons Ltd. for modification.
View original record 1328 To Hq/FC. from Rm/FJH. c. D/BP. Rm/FJH.6/MH.23.2.39. Will you please despatch to Messrs. S.Smith & Sons Ltd., Cricklewood Works, London, N.W.2. for the attention of Mr. Eckford, the special…

scan0200 Letter from S. Smith & Sons regarding a defective calorstat returned from a Bentley.
View original record 195 1328 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY BY APPOINTMENT TO HIS MAJESTY THE KING TELEPHONE: GLADSTONE 3333 (20 LINES) TELEGRAMS: SPEEDOFAC, PHONE, LONDON. CABLES: SPEEDOFAC, LONDON.…

scan0201 Requesting the despatch of two Wraith calorstats to the Cricklewood Depot.
View original record 1328 To Hd/FC. from Rm/PJH. c. D/BP. Rm/FJH.3/MH.24.2.39. Will you please despatch to G.W.Hancock, Esq. at the Cricklewood Depot the two Wraith calorstats which we have handed to you. These are to…

scan0202 Letter concerning a delay, the supply of an experimental thermostat, and a forthcoming drawing for a thermostatic relief valve.
View original record Telephone: SUNBURY-ON-THAMES 456 (6 LINES) Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES. Code: BENTLEY'S 1328 THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments. DIRECTORS: COL. N.…

scan0203 Letter from The British Thermostat Co., Ltd. regarding a thermostatic header tank relief valve for Bentley pressure-cooled systems.
View original record 1328. Telephone: SUNBURY-ON-THAMES 456 (6 LINES) Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES. Code: BENTLEY'S THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments. DIRECTORS: COL.…

scan0204 Arrangement of a pressure and vacuum valve assembly (P.L.V.).
View original record DRAWING NOT TO BE SCALED PLV/A/62B ALTERATIONS A METHOD OF SECURING OVERFLOW CAP MODIFIED See ALT No 3505 F.H. 6-10-38 B PATENT No ADDED F.H. 17/12/38 3652 PATENT No 22048/38 To Be Stamped Here 1 3/8"…

scan0205 General arrangement drawing of a pressure loading valve.
View original record DRAWING NOT TO BE SCALED PLV/A/47C ALTERATIONS A. THIMBLE ADDED TO PROTECT ADJUSTING SCREW. B. 3466 TRACED & THIMBLE REGISTER ADDED 22.9.38 C. PATENT No ADDED 17/12/38 3651 PATENT No 22048/38 TO BE…

scan0206 Follow-up memo chasing a reply regarding charges for Bentley Chassis B.55.LE.
View original record 1328 Rm. D/BP/DW11/CV.7.3.39. FSH Please reply Re: Bentley Chassis B.55.LE - Clyde Autos. Order No. 49701. We have not received a reply to our memo addressed to Rm/Std reference D/BP/DW18/CV.10.2.39.…

scan0207 Query to a supplier regarding the filling substance and operating temperature of Wraith type calorstats.
View original record 1328. Rm/FJH5/R. 8th March, 1939. Messrs. S. Smith & Sons Ltd., Cricklewood Works, LONDON. N.W.2. (For the attention of Mr. Eckford). Dear Sirs, Our Production Dept. have found a number of calorstats,…

scan0208 Letter from S. Smith & Sons regarding the performance specifications of calorstats, including travel, load, and the Hexane fluid used.
View original record 105 1328 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY BY APPOINTMENT TO THE LATE KING GEORGE V ENGINEERING & ALLIED EMPLOYERS' NATIONAL FEDERATION TELEPHONE: GLADSTONE 3333 (40 LINES)…

scan0209 Letter from S. Smith & Sons detailing their testing method of submerging units in water for uniformity.
View original record RP 81 S. SMITH & SONS (Motor Accessories) LTD. CRICKLEWOOD WORKS, LONDON, N.W.2. CONTINUATION NO. 1. March 13th, 1939. Messrs. Rolls Royce Ltd. For your information, in testing these units we…

scan0210 Letter of complaint to a supplier regarding an unauthorized change in the filling of Calorstats to Hexane.
View original record 1328 Rm4/R. 14th March, 1939. C.W. Nichols, Esq., Messrs. S. Smith & Sons (Motor Accessories) Ltd., Cricklewood Works, LONDON. N.W.2. Dear Mr. Nichols, I regret to say that your people have caused us…

scan0211 Letter from S. Smith & Sons acknowledging receipt of correspondence and passing it on for investigation.
View original record 105 1328 ENGINEERING AND ALLIED EMPLOYERS NATIONAL FEDERATION 1896 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY BY APPOINTMENT TO HIS MAJESTY THE KING TELEPHONE: GLADSTONE 3333 (20 LINES)…

scan0212 Letter from S. Smith & Sons about complaints over the incorrect filling of Calorstats and the resulting specification changes.
View original record 105 1328 F.J. HARDY CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY S. SMITH & SONS (Motor Accessories) Ltd CRICKLEWOOD WORKS LONDON, N.W.2 TELEPHONE: GLADSTONE 3333 (20 LINES) TELEGRAMS:…

scan0213 Letter from S. Smith & Sons detailing the performance specifications of a hexane-filled unit.
View original record RP 81 S. SMITH & SONS (Motor Accessories) LTD. CRICKLEWOOD WORKS, LONDON, N.W.2. CONTINUATION NO. 1. March 15th, 1939. Messrs. Rolls Royce, Ltd. The unit filled with Hexane commences to open under no…

scan0214 Letter from S. Smith & Sons regarding the performance of shutter 'calorstats' and sending a modified unit for testing.
View original record COPY. E.6 FGE/MM. Your Ref: Rm/Std.4/JH. October 12th, 1939. Messrs. Rolls Royce Ltd., DERBY. Dear Sirs, for the attention of Mr.Steadman. In reply to your letter of the 6th inst. we have again looked…

scan0215 Letter to a supplier regarding incorrectly set calorstats and clarification on temperature specifications.
View original record COPY OF LETTER FROM..... ROLLS ROYCE LTD. DERBY. EXPERIMENTAL DEPARTMENT. Rm/Std.4/JH. 6th. October 1938. Messrs. S.Smith & Sons Ltd., Cricklewood Works, London, N.W.2. for the attention of…

scan0216 Letter from S. Smith & Sons to W.A. Robotham regarding the return of Smithermets.
View original record 105 F.J. HARDY. 1328 ? CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY BY APPOINTMENT TO HIS MAJESTY THE KING ENGINEERING AND ALLIED EMPLOYERS NATIONAL FEDERATION 1925 TELEPHONE: GLADSTONE 3333…

scan0217 Updated operating temperature specifications for the Wraith Calorstat following a complaint.
View original record 1328 To By. from Rm/FJH. c. By/NS. c. Da. Rm/FJH.2/MH.21.3.39. WRAITH CALORSTAT. The drawing of the Wraith Calorstat E.87157 has a note on it concerning the operating temperatures which is not very…

scan0218 Letter from The British Thermostat Co. Ltd. regarding a thermostatically operated relief valve for an experimental Bentley car.
View original record 1328. Telephone: SUNBURY-ON-THAMES 456 (6 LINES) Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES. Code: BENTLEY'S THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments. FEDERATION OF…

scan0219 Letter from a supplier correcting a mistake in a drawing for a Thermostatic Relief Valve for an experimental Bentley car.
View original record 1328 Telephone: SUNBURY-ON-THAMES 456 (6 LINES) Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES. Code: BENTLEY'S THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments. DIRECTORS: COL. N.…

scan0220 Letter to The British Thermostat Co. Ltd. questioning their valve design and comparing it to a Rolls-Royce scheme.
View original record 1328. EXPERIMENTAL DEPARTMENT. Rm/Ed.6/JH. April. 21st. March, 1939. The British Thermostat Co.Ltd., Teddington Works, Windmill Road, Sunbury-on-Thames, MIDDLESEX. For the attention of Mr. K.M.…

scan0221 Letter from The British Thermostat Co., Ltd. explaining the operation of a valve and referencing drawing No.11295/A.
View original record .1328 Telephone: SUNBURY-ON-THAMES 456 (6 LINES) Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES. Code: BENTLEY'S THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments. DIRECTORS: COL.…

scan0222 Page 2 of a letter from The British Thermostat Co., Ltd. explaining the function of their valve design.
View original record Page 2 Rolls-Royce, Ltd., 25th April 1939. - - - - - - - - - - - - - - - - - - If, however, the pressure inside the header tank is greater than the steam pressure, due to the presence of air or other…

scan0223 Cross-section drawing of a radiator relief valve with annotations.
View original record DRAWING NOT TO BE SCALED Drg: No. 11295/A. ALTERATIONS A. THREAD ON VALVE HEAD REDUCED IN DIA/R. C.S 21/4/39 JOINT WASHER NOTE:- FIXING CENTRE EXACTLY AS SHOWN ON MESSrs ROLLS-ROYCE LTD Drg: No S.C.D.…

scan0224 Letter from The British Thermostat Co. Ltd. regarding a thermostatically operated header tank relief valve.
View original record Telephone: SUNBURY-ON-THAMES 456 (6 LINES) 1328 Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES. Code: BENTLEY'S. THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments. TEDDINGTON WORKS.…

scan0225 Letter from The British Thermostat Co. regarding a meeting to discuss a thermostatic header tank relief valve for a pressure-cooled Bentley system.
View original record Telephone: SUNBURY-ON-THAMES 456 (6 LINES) Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES. Code: BENTLEY'S THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments. TEDDINGTON WORKS.…

scan0226 Letter to S. Smith & Sons Ltd. arranging a visit to check a Thermostat rig.
View original record Hu 1328 Rm/ED 3/ER 1st May, 1939. S. Smith & Sons Ltd., Cricklewood Works, London N.W. 2. Experimental Department. For the attention of Mr Eckford. Dear Sirs, Further to our recent interview with you,…

scan0227 Letter from S. Smith & Sons (Motor Accessories) Ltd to Rolls Royce Ltd confirming a meeting.
View original record 105 1328. ENGINEERING & ALLIED EMPLOYERS NATIONAL FEDERATION 1896 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY BY APPOINTMENT TO THE LATE KING GEORGE V TELEPHONE: GLADSTONE 3333 (40 LINES)…

scan0228 Letter chasing progress on a thermostatic relief valve for pressure cooling.
View original record 1328? EXPERIMENTAL DEPARTMENT. Rm/Ed.7/JH. 15th. May, 1939. The British Thermostat Co.Ltd., Windmill Road, Sunbury-on-Thames. For the attention of Mr. Martin-Hurst. Dear Sirs, You will remember that…

scan0229 Letter from a supplier apologising for a delay in submitting a drawing.
View original record 1328? Telephone: SUNBURY-ON-THAMES 456 (7 LINES) Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES Code: BENTLEY'S THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments. Windmill Road.…

scan0230 Letter from The British Thermostat Co., Ltd. regarding the functioning of a Radiator Relief Valve.
View original record 1328 Telephone: SUNBURY-ON-THAMES 456 (7 LINES) Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES. Code: BENTLEY'S THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments. TEDDINGTON WORKS.…

scan0231 Letter from The British Thermostat Co. Ltd. detailing the operation of a thermostatically operated car header tank relief valve.
View original record [Handwritten] 1328 Telephone: SUNBURY-ON-THAMES 456 (7 LINES) Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES. Code: BENTLEY'S THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments.…

scan0232 Drawing showing a cross-section of a radiator relief valve with handwritten annotations.
View original record DRAWING NOT TO BE SCALED PART Nᵒ F.A.B./A/1. ALTERATIONS Valve Seat Bellows "A" Bellows Stop Bellows Top Plate Bellows Bottom Plate Relief Spring 1/8 15/16 SCALE FULL SIZE. RADIATOR RELIEF VALVE OFF…

scan0233 Letter to the British Thermostat Co. Ltd. discussing a thermostat design and ordering experimental samples.
View original record 1328? EXPERIMENTAL DEPARTMENT. Rm/Ed.9/JH. 2nd. June, 1939. The British Thermostat Co.Ltd., Teddington Works, Windmill Road, Sunbury-on-Thames. MIDDX. For the attention of Mr.K.M.Petter. Dear Sirs,…

scan0234 Requesting an official order for two radiator relief valves from the British Thermostat Co.
View original record 1328 To Roy. c. to G/JWH. Rm/Ed.7/JH.2.6.39. RADIATOR RELIEF VALVE. Will you please pass an official order to the British Thermostat Co. of Sunbury on Thames for two radiator relief valves to their…

scan0235 Letter from The British Thermostat Co., Ltd. regarding the production and quotation for Radiator Relief Valves.
View original record 1328 Telephone: SUNBURY-ON-THAMES 456 (7 LINES) Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES Code: BENTLEY'S THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments. Windmill Road,…

scan0236 Follow-up letter regarding the status of a Special Hexane Filled Calorstat sent for modification.
View original record 1328 Rm/FJH. G/WFH/EWH.24/BB.6.6.39 On 23.2.39 under cover of Advice Note W.G/F. 59071 quoting your reference Rm/FJH.6/MH. 23.2.39 we forwarded to Messrs S. Smith & Sons Ltd., 1. Special Hexane Filled…

scan0237 Letter from The British Thermostat Co., Ltd. regarding a future visit to Derby.
View original record 1328 Telephone: SUNBURY-ON-THAMES 456 (7 Lines) Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES. Code: BENTLEY'S THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments. Windmill Road,…

scan0238 The discontinuation of tests on a Hexane Filled Calorstat and a privately ordered handbook.
View original record 1328 To G/WFH. from Rm/FJH. Rm/FJH.6/MH.15.6.39. Re your memo G/WFH/EWH.24/BB.6.6.39. 1328 file The Special Hexane Filled Calorstat referred to has not been and will not be returned, as, since we sent…

scan0239 Letter to The British Thermostat Co. Ltd. chasing an outstanding order for two relief valves for testing.
View original record 1328? Experimental Dept. Rm/Ed.4/MH. 4th. July, 1939. The British Thermostat Co. Ltd., Windmill Road, Sunbury-on-Thames, MIDDX. For the attention of Mr. Martin-Hurst. Dear Sirs, Some time ago our Mr.…

scan0240 Letter from The British Thermostat Co. Ltd. confirming the dispatch of two relief valves.
View original record 1328 Ed Telephone: SUNBURY-ON-THAMES 456 (7 LINES) THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments. TEDDINGTON WORKS. ON A.I.D AIR MINISTRY APPROVED LIST Telegrams & Cables:…

scan0241 Internal request to place an order for a high-temperature thermostat from S.Smith & Sons Ltd.
View original record 1328 To Les. from Rm/Ed. c. G/JWH. Rm/Ed.5/MH.10.7.39. HIGH TEMPERATURE THERMOSTAT. Will you please pass an official order to S.Smith & Sons Ltd. for one B.V. thermostat to EB.3776, filled to give a…

scan0242 Letter to S.Smith & Sons Ltd. regarding a failure of a Bentley V thermostat bellows and requesting a design modification.
View original record 1328 Experimental Dept. RM/Ed.4/MH. 10th. July, 1939. Messrs. S.Smith & Sons Ltd., Cricklewood works, LONDON, N.W.2. For the attention of Mr. Eckford. Dear Sirs, With reference to our Bentley V…

scan0243 Letter from the Experimental Department to British Filters Ltd. enclosing prints for thermostats.
View original record 1828? EXPERIMENTAL DEPARTMENT. Rm/Ed.12/JH. 11th July, 1939. British Filters Ltd., Aircraft House, MARKET HARBOROUGH. For the attention of Mr. Worth. Dear Sirs, With reference to our recent…

scan0244 Letter from British Filters Ltd acknowledging receipt of drawings.
View original record 1328 BRITISH FILTERS LTD AIRCRAFT HOUSE MARKET HARBOROUGH GENERAL FILTERS Market Harborough 2254-5 T.C.Worth R.G.H.Taylor W.S.Thompson TCW/MM Your ref:- Rm/Ed.12/JH Messrs Rolls-Royce Ltd.,…

scan0245 Letter from supplier S. Smith & Sons responding to a complaint about thermostats supplied for the Bentley Car.
View original record 105 1328. CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY THE ENGINEERING AND ALLIED EMPLOYERS' NATIONAL FEDERATION 1918 TELEPHONE: GLADSTONE 3333 (40 LINES) TELEGRAMS: SPEEDOFAC, PHONE, LONDON.…

scan0246 Letter to British Filters Ltd. regarding the return of a bellows-type thermostat for examination.
View original record 1328 Experimental Dept. Rm/Ed.4/MH. 17th. July, 1939. British Filters Ltd., AIRCRAFT HOUSE, MARKET HARBOROUGH. For the attention of Mr. Worth. Dear Sirs, With reference to the thermostat - bellows…

scan0247 Letter from British Filters Ltd regarding the return of a thermostat.
View original record 1328. BRITISH FILTERS LTD AIRCRAFT HOUSE MARKET HARBOROUGH Market Harborough 2254-5 T. C. Worth R. G. H. Taylor W. S. Thompson MM Your ref: Rm/Ed.4/MH GENERAL FILTERS Messrs Rolls-Royce Ltd.,…

scan0248 Letter to S. Smith & Sons Ltd. concerning a failed Bentley V thermostat sent for inspection.
View original record 1328 EXPERIMENTAL DEPARTMENT. Rm/Ed.14/JH. 20th. July, 1939. Messrs. S. Smith & Sons Ltd., Cricklewood Works, LONDON.N.W.2. For the attention of Mr. Eckford. Dear Sirs, We are sending you under…

scan0249 The return of a B.V. Thermostat to S. Smith & Sons Ltd for inspection.
View original record 1328 To Hd/FC. c. to D/BP. Rm/Ed.11/JH.20.7.39. B.V. Thermostat. Will you please return the accompanying thermostat to Messrs. S. Smith & Sons Ltd. Cricklewood Works, London.N.W.2. marked for the…

scan0250 Letter from S. Smith & Sons discussing a faulty thermostat returned for examination.
View original record 105 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY ENGINEERING & ALLIED EMPLOYERS NATIONAL FEDERATION 1896 TELEPHONE: GLADSTONE 3333 (40 LINES) TELEGRAMS: SPEEDOFAC, PHONE, LONDON. S.Smith & Sons…

scan0251 Letter from S. Smith & Sons about a returned thermostat, suspecting it was subjected to overheating.
View original record RP 81 S. SMITH & SONS [MOTOR ACCESSORIES] LTD. CRICKLEWOOD WORKS, LONDON. N.W.2. CONTINUATION NO. 1 Messrs. Rolls-Royce Limited. 24th July, 1939. order to satisfy yourselves with a stock Thermostat.…

scan0252 Quotation letter from The British Thermostat Co., Ltd. for a 'little Bentley' combined relief and vent valve.
View original record THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments. TEDDINGTON WORKS. Windmill Road, Sunbury-on-Thames, Middlesex. Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES. Code: BENTLEY'S ON…

scan0253 Letter to Avon India Rubber Co. agreeing to share the cost of sending tyres to France on a fifty-fifty basis.
View original record 1331 Rm9/R. 3rd August, 1939. The Avon India Rubber Co.,Ltd., 41 & 42, Livery Street, BIRMINGHAM. 3. (For the attention of Mr. S.Lovell-Hewitt) Dear Sirs, We are in receipt of your letter of the 31st…

scan0254 Letter to The Avon India Rubber Co. regarding tyre tread separation on a streamline car in France and requesting a meeting.
View original record 1331 Rm/Gry5/R. 3rd August, 1939. The Avon India Rubber Co.,Ltd., Melksham, WILTS. (For the attention of Dr. J.G. Mackay) Dear Sirs, We should like to discuss with you the behaviour of the tyres which…

scan0255 Letter to The British Thermostat Co. Ltd. regarding unsatisfactory test results on two valves and arranging a meeting.
View original record 1328? EXPERIMENTAL DEPARTMENT. Rm/Ed.4/JH. 8th. August, 1939. The British Thermostat Co.Ltd., Windmill Road, Sunbury-on-Thames, MIDDLESEX. For the attention of Mr. K.M. Petter. Dear Sirs, We must…

scan0256 Letter from the Experimental Department to S. Smith & Sons Ltd. arranging a meeting.
View original record 1328 EXPERIMENTAL DEPARTMENT. Rm/Ed.5/JH. 8th. August, 1939. Messrs. S. Smith & Sons Ltd., Cricklewood Works, LONDON.N.W.2. Your ref. S.10. Dear Sirs; We must apologise for the delay in answering…

scan0257 Dispatch of a second-hand tyre to Avon India Rubber Co. Ltd.
View original record 1331 To Hd/FC. c. to D/BP. Rm/FD.21/JH.9.8.39. We are sending into the stores today one second hand tyre, will you please send these to Dr. Mackay, Avon India Rubber Co.Ltd., Melksham, Wilts. this…

scan0258 Letter to Avon India Rubber Co. Ltd. regarding the dispatch of a second-hand tyre cover.
View original record 1381 EXPERIMENTAL DEPARTMENT. Rm/FD.22/JH. 9th. August, 1939. The Avon India Rubber Co.Ltd., Melksham, WILTS. For the attention of Mr.Mackay. Dear Sirs, At Mr. Robotham's request we are sending you…

scan0259 Letter to The Avon India Rubber Co. about tyre specifications and testing for the 'Corniche' model.
View original record 1331. Rm6/R. 10th August, 1939. Dr. J.G. Mackay, The Avon India Rubber Co.,Ltd., Melksham, WILTS: Dear Mackay, Our latest information from France is that the only tyres which will really stand up…

scan0260 Letter from The British Thermostat Co. regarding an alternative scheme for Bentley Combined Relief and Vent Valves.
View original record 1328. Telephone: SUNBURY-ON-THAMES 456 (7 LINES) Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES Code: BENTLEY'S THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments. DIRECTORS: COL. N.…

scan0261 Letter from S. Smith & Sons acknowledging a previous letter and confirming an appointment.
View original record 105 1328 ENGINEERING AND ALLIED EMPLOYERS NATIONAL FEDERATION 1896 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY BY APPOINTMENT TO THE LATE KING GEORGE V TELEPHONE: GLADSTONE 3333 (40 LINES)…

scan0262 Authorising payment for Avon tyres and tubes forwarded to Mr. Waller in Chateauroux.
View original record 1331 To Les. c. to G/WFH. Rm/Gry.3/JH.11.8.39. With regard to memo. ref. G/WFH/CTC,4/JE.9.8.39. It is quite in order to pay for the following tyres - 12 - 6.50/16 Avon Standard Covers and 12 - 6.50/16…

scan0263 Short memo regarding a thermostat, a location, and an expected arrival time.
View original record 1328 R-144 15.8.39. Thermostat, Sunbury-on-Thames. HOPE ARRIVE 2.30 Edwards, Roycar.

scan0264 Telegram received by telephone to arrange a convenient time for a meeting with Edwards on Wednesday.
View original record R.R. 744A—81208 13.1.39 WHK 1328 ROLLS-ROYCE LTD. TELEGRAM RECEIVED BY TELEPHONE. Time Received 10.42 Date 15/8/39 To ROYCAR By JJH from SUNBURY-ON-THAMES 10 18 T.S. 9 wds EDWARDS WEDNESDAY CONVENIENT…

scan0265 Telegram from Sunbury on Thames to Derby requesting a convenient time to meet about a thermostat.
View original record POST OFFICE TELEGRAM Charges to pay RECEIVED TS No. 49 OFFICE STAMP: CONFIRMATION 15 AUG. 39 Handwritten notes: 1328, 19/H1, D/7424, BH, Exp, Ed From: 65 10.18 SUNBURYONTHAMES TS 9 To: ROYCAR DERBY =…

scan0266 Memo containing two separate messages regarding scheduling changes.
View original record 1328 THERMOSTAT ; SUNBURY-ON-THAMES. ATTENTION MARTIN-HURST. UNABLE ARRIVE TUESDAY. PLEASE WIRE IF BY WEDNESDAY 3PM STILL O.K. EDWARDS ROYCAR SPEEDOFAC PHONE LONDON. ATTENTION. GROSE UNABLE ARRIVE…

scan0267 Letter to S. Smith & Sons Ltd. about a meeting and the specifications for a pressure cooling system valve.
View original record /328 EXPERIMENTAL DEPARTMENT. Rm/Ed.11/JH. 15th. August, 1939. Messrs. S.Smith & Sons Ltd., Cricklewood Works, LONDON.N.W.2. For the attention of Mr. Grose. Dear Sirs, Further to your telephone…

scan0268 Letter from The British Thermostat Co., Ltd. confirming a rescheduled meeting based on a telegram received.
View original record 1328 Telephone: SUNBURY-ON-THAMES 456 (7 LINES) Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES. Code: BENTLEY'S THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments. DIRECTORS: COL. N.…

scan0269 Letter from S. Smith & Sons regarding an appointment with Mr. Edwards.
View original record 108 1328 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY TELEPHONE: GLADSTONE 3333 (40 LINES) TELEGRAMS: SPEEDOFAC, PHONE, LONDON. S.Smith & Sons Motor Accessories Ltd CRICKLEWOOD WORKS LONDON,…

scan0270 Letter from S. Smith & Sons to Mr. A. F. Martindale of the Experimental Department regarding a scheme and requesting a diagram.
View original record 105 1328 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY TELEPHONE: GLADSTONE 3333 (40 LINES) TELEGRAMS: SPEEDOFAC, PHONE, LONDON. CABLES: SPEEDOFAC, LONDON. CODES: MARCONI, COMMERCIAL, BENTLEY'S.…

scan0271 Letter to S. Smith & Sons Ltd. outlining a scheme for a new thermostat design.
View original record 1328 EXPERIMENTAL DEPARTMENT. Rm/Ed.7/JH. 19th. August, 1939. S.Smith & Sons Ltd., Cricklewood Works, LONDON.N.W.2. For the attention of Mr. Grose. Dear Sirs, Many thanks for your letter of the 17th.…

scan0272 Letter from supplier S. Smith & Sons regarding a new design and production timeline.
View original record 105 1328? ENGINEERING AND ALLIED EMPLOYERS' NATIONAL FEDERATION 1918 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY BY APPOINTMENT TO THE LATE KING GEORGE V TELEPHONE: GLADSTONE 3333 (40 LINES)…

scan0273 Correspondence to S.Smith & Sons Ltd. regarding the making up of sample valves.
View original record 1328 EXPERIMENTAL DEPARTMENT. Rm/Ed.3/JH. 25th. August, 1939. S.Smith & Sons Ltd., Cricklewood Works, LONDON.N.W.2. For the attention of Mr. Grose. Dear Sirs, Many thanks for yours of the 23rd.…

scan0274 Letter from The British Thermostat Co. Ltd. detailing the costs involved for two Bentley Relief valves and asking whether to proceed with modifications.
View original record Telephone: SUNBURY-ON-THAMES 456 (7 LINES) Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES Code: BENTLEY'S 1328 THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments. DIRECTORS: COL. N.…

scan0275 Letter to The British Thermostat Co. Ltd. regarding the cost of two experimentally made Bentley Relief Valves.
View original record 1328 Rm/4.MH. 26th. September, 1939. The British Thermostat Co. Ltd., Teddington Works, Windmill Road, Sunbury-on-Thames, MIDDX. For the attention of Mr. K.M.Petter. Dear Sirs, With reference to your…

scan0276 Letter from The British Thermostat Co. Ltd. regarding the cost of an experimental instrument.
View original record 1328 Telephone: SUNBURY-ON-THAMES 456 (7 LINES) Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES. CODE: BENTLEY'S THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments. TEDDINGTON WORKS.…

scan0277 Letter to Mr. Martin-Hurst regarding payment towards the cost of two Bentley Relief Valves.
View original record 1328 Rm.4/MH. 3rd. October, 1939. W.Martin-Hurst, Esq., The British Thermostat Co. Ltd., Teddington Works, Sunbury-on-Thames, MIDDX. Dear Mr. Martin-Hurst, With reference to your letter of September…

scan0278 Retrofitting an engine thermostat to a 1937 Bentley, chassis number 96KT.
View original record Telephone: SUNBURY-ON-THAMES 456 (7 LINES) Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES Code: BENTLEY'S EDWARDS - WHY NOT? Rm THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments.…

scan0279 Letter discussing the feasibility of fitting an engine thermostat to a Bentley car, chassis number 96.K.T.
View original record File 1328 Rm/Ed.2/GH.14.2.40. 14th February 1940. The British Thermostat Co. Ltd., Teddington Works, Windmill Road, Sunbury on Thames, Middlesex. Dear Sirs, FOR THE ATTENTION OF MR. W. MARTIN-HURST.…

scan0280 Page two of a letter stating that job completion cannot be guaranteed within the previously mentioned timeframe.
View original record - 2 - Rm/Ed.2/GH.14.2.40. Continued:- We should also like to point out that we cannot guarantee completion of the job even in the time mentioned above. Yours faithfully, DEVELOPMENT ENGINEER -…

scan0281 Letter from The British Thermostat Co. Ltd. regarding the fitting of a thermostat to a Bentley car.
View original record 1328 THE BRITISH THERMOSTAT CO, LTD. Makers of Scientific Instruments. TEDDINGTON WORKS. Windmill Road, Sunbury-on-Thames, Middlesex. Telephone: SUNBURY-ON-THAMES 456 (7 LINES) Telegrams & Cables:…

scan0282 Letter to The British Thermostat Co. Ltd. concerning the fitting of a thermostat to a Bentley.
View original record 1328 Sle Rm/Ed.9/GH.29.2.40. 29th February 1940. The British Thermostat Co. Ltd., Teddington Works, Windmill Road, Sunbury on Thames, Middlesex. Dear Mr. Martin-Hurst, Many thanks for your letter of…

scan0283 Letter to The British Thermostat Co. Ltd. concerning the fitting of a thermostat, water pump and potential parts interchangeability issues.
View original record File Thorndike 1328. Rm/Ed.4/CH.12.3.40. 12th March 1940. The British Thermostat Co. Ltd., Teddington Works, Windmill Road, Sunbury on Thames, Middlesex. Dear Mr. Martin Hurst, Further to your recent…

scan0284 The concluding page of a letter regarding a modification to be carried out by Mr. Bellringer.
View original record - 2 - Continued:- I will, however, let you have some more information when Mr. Bellringer has actually tried to carry out the modification. Yours faithfully, for ROLLS-ROYCE LIMITED.

scan0285 Letter from The British Thermostat Co., Ltd. to John L. Edwards regarding a matter now left with Mr. Bellringer.
View original record Telephone: SUNBURY-ON-THAMES 456 (7 LINES) Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES. CODE: BENTLEY'S THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments. TEDDINGTON WORKS.…

scan0286 Letter from S. Smith & Sons discussing a thermostatic relief valve and a potential joint patent.
View original record 105 EDWARDS 1328 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY S.Smith & Sons (Motor Accessories) Ltd CRICKLEWOOD WORKS LONDON, N.W.2 TELEPHONE: GLADSTONE 3333 (40 LINES) TELEGRAMS: SPEEDOFAC,…

scan0287 Letter to The British Thermostat Co. Ltd. about producing a cheaper and efficient thermostat for a Bentley.
View original record File 1328 Em/Ed.2/GH.2.4.40. 2nd April 1940. The British Thermostat Co. Ltd., Teddington Works, Windmill Road, Sunbury on Thames, Middlesex. For the attention of Mr. Martin-Hurst. Dear Mr.…

scan0288 Letter from The British Thermostat Co. Ltd. requesting an up-to-date drawing for the Bentley Thermostat.
View original record 1328 Telephone: SUNBURY-ON-THAMES 456 (7 LINES) Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES. Code: BENTLEY'S THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments. DIRECTORS: COL. N.…

scan0289 Letter to The British Thermostat Co. Ltd. regarding a print of a thermostat.
View original record File Thermostats 1328 Rm/Ed.2/GH.10.4.40. 10th April 1940. The British Thermostat Co. Ltd., Teddington Works, Windmill Road, Sunbury on Thames, Middlesex. Dear Sirs, FOR THE ATTENTION OF MR.…

scan0290 Requesting a specific type of thermostat for the Clan Foundry Rigs and referencing issues with the current one.
View original record 1328 EJJ. from Rm. file Thermostats qenu Rm.9/ML.1.10.40. CLAN FOUNDRY RIGS. See also N. 17 Will you please obtain for us :- 1 - Thermostat W.T. type, protected pattern, 3/4", conduit entry in the…

scan0291 Letter from The British Thermostat Co. Ltd. regarding the fitting of a thermostat to a car.
View original record Telephone: SUNBURY-ON-THAMES 456 (7 LINES) 1328 THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments. DIRECTORS: COL. N. HUDSON. J. E. SHERLOCK. W. F. F. MARTIN HURST } MANAGING. F. G.…

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