| Description | Date | Identifier | |
| Brake shoe design for 40/50 and 25 HP models and comparing brake lining areas with competitor vehicles. | 16th Dec 1930 | Box 12 \ 5 05-page244 | |
| Specification table detailing the dimensions of servo-operated brakes for different vehicle models. | 4th Dec 1930 | Box 12 \ 5 05-page245 | |
| Table detailing the particulars of servo-operated brakes for various car models. | 4th Dec 1930 | Box 12 \ 5 05-page246 | |
| Issue of brake squeaks and proposing a trial of a new brake shoe. | 16th Dec 1930 | Box 12 \ 5 05-page247 | |
| Internal memorandum discussing brake squeaks and the implementation of the Hancock scheme for chassis being shipped to America. | 18th Dec 1930 | Box 12 \ 5 05-page248 | |
| Specification sheet for the Phantom II (WJ & XJ Series) front and rear brake areas. | 1st Dec 1930 | Box 12 \ 5 05-page249 | |
| Proposed 4-shoe brake adapted for the front brakes on the Phantom II. | 24th Dec 1930 | Box 12 \ 5 05-page250 | |
| Instructions for setting non-squeak brake shoes. | 6th Jan 1931 | Box 12 \ 5 05-page251 | |
| Specifications for the brake areas of the Phantom II, WJ. XJ. series. | 1st Dec 1930 | Box 12 \ 5 05-page252 | |
| Examination of high-pitched squeaks from locomotive front brakes and suggested remedies. | 21th Jan 1931 | Box 12 \ 5 05-page253 | |
| Communication regarding a potential cure for groaning rear brakes by adjusting the shoe fulcrum pin. | 26th Jan 1931 | Box 12 \ 5 05-page254 | |
| Examination of squeaking locomotive front brakes and a proposed solution involving spring loading. | 21th Jan 1931 | Box 12 \ 5 05-page255 | |
| Metallic noise from brake stops on the Phantom and 25 HP models, suggesting the reapplication of a previously used rubber buffer. | 27th Feb 1931 | Box 12 \ 5 05-page256 | |
| Standardisation document for an anti-squeaking front axle brake shoe. | 4th Dec 1930 | Box 12 \ 5 05-page257 | |
| Standardisation of an anti-squeaking brake shoe for the front axle to reduce complaints. | 4th Dec 1930 | Box 12 \ 5 05-page258 | |
| The details for fitting a new part to a chassis, including the test date and associated costs. | 7th Mar 1931 | Box 12 \ 5 05-page259 | |
| Procedure document detailing brake testing conditions and steps. | 6th Mar 1931 | Box 12 \ 5 05-page260 | |
| Series of brake tests and measurements on a vehicle. | 6th Mar 1931 | Box 12 \ 5 05-page261 | |
| Brake testing procedures, measurements, and observations from a road test. | 5th Mar 1931 | Box 12 \ 5 05-page262 | |
| Results of brake system tests. | 5th Mar 1931 | Box 12 \ 5 05-page263 | |
| Results of brake performance tests from various speeds. | 4th Mar 1931 | Box 12 \ 5 05-page264 | |
| Test report detailing a series of brake performance tests on vehicle 22-EX. | 12th Mar 1931 | Box 12 \ 5 05-page265 | |
| Test report on brake squeaking issues noted during a test run. | 13th Mar 1931 | Box 12 \ 5 05-page266 | |
| Brake performance tests conducted during morning and afternoon runs. | 13th Mar 1931 | Box 12 \ 5 05-page267 | |
| Alterations to brake leverages, specifically cams and countershafts, on Phantom II cars. | 14th Mar 1931 | Box 12 \ 5 05-page268 | |
| Brake tests and component measurements after covering a specific mileage. | 21th Mar 1931 | Box 12 \ 5 05-page269 | |
| Potential cures and experiments for rear wheel brake squeaks on the Phantom II model. | 27th Mar 1931 | Box 12 \ 5 05-page270 | |
| Testing various brake linings for squeaks and efficiency with cast iron brake drums. | 30th Mar 1931 | Box 12 \ 5 05-page271 | |
| Brake test report for chassis 22-EX, detailing performance with standard drums and Cresswell 999W linings over several runs. | 1st Apr 1931 | Box 12 \ 5 05-page272 | |
| Efforts and experiments to cure rear wheel brake squeaks. | 1st Apr 1931 | Box 12 \ 5 05-page273 | |
| Unsuccessful results of a test on squeaking brakes. | 1st Apr 1931 | Box 12 \ 5 05-page274 | |
| Brake test report for chassis 22-EX after correction of the N.S.R. dust cover, detailing performance during rainy conditions. | 2nd Apr 1931 | Box 12 \ 5 05-page275 | |
| Modifications to address brake effectiveness and squeaking issues on Phantom II models. | 10th Apr 1931 | Box 12 \ 5 05-page276 | |
| Brake test report detailing mileage, brake performance, and adjustments made to the front and rear brakes. | 11th Apr 1931 | Box 12 \ 5 05-page277 | |
| Test log page detailing vehicle braking performance and component measurements. | 14th Apr 1931 | Box 12 \ 5 05-page278 | |
| Reporting on tests of ribbed brake drums for Phantom II models, detailing performance, material issues, and side effects. | 13th Apr 1941 | Box 12 \ 5 05-page279 | |
| Series of brake tests, adjustments, and modifications. | 14th Apr 1931 | Box 12 \ 5 05-page280 | |
| The results of brake wear and performance tests under different configurations. | 14th Apr 1931 | Box 12 \ 5 05-page281 | |
| Requesting a report on the behaviour of anti-squeak front brake shoes of the Hancock Type. | 14th Apr 1931 | Box 12 \ 5 05-page282 | |
| Positive feedback on newly fitted anti-squeak front brake shoes. | 15th Apr 1931 | Box 12 \ 5 05-page283 | |
| Fitting of anti-squeak front brake shoes to six specific cars. | 15th Apr 1931 | Box 12 \ 5 05-page284 | |
| Brake efficiency tests on a Phantom II model, comparing standard and ribbed brake drums. | 20th Apr 1931 | Box 12 \ 5 05-page285 | |
| Brake test results for experimental models 22-EX and 19-EX, detailing stopping distances and component measurements. | 21th Apr 1931 | Box 12 \ 5 05-page286 | |
| Development of different brake shoe designs to resolve issues with brake squeaks. | 23th Apr 1931 | Box 12 \ 5 05-page287 | |
| List of cars fitted with a special anti-squeak device for front wheel brakes. | 29th Apr 1931 | Box 12 \ 5 05-page288 | |
| Brake inefficiency tests on Phantom cars, comparing different brake drum and shoe configurations. | 5th May 1931 | Box 12 \ 5 05-page289 | |
| Brake drum and shoe upgrades to address squeaks and efficiency loss. | 5th May 1931 | Box 12 \ 5 05-page290 | |
| Outlining an investigation into and a proposed solution for 'Phantom Rear Brake Groans'. | 19th May 1931 | Box 12 \ 5 05-page291 | |
| Tests carried out to overcome brake squeaks on Phantom cars. | 21th May 1931 | Box 12 \ 5 05-page292 | |
| Testing steel ribbed brake drums and a solution for rear brake groans. | 21th May 1931 | Box 12 \ 5 05-page293 | |
| Advantages of swivelling brake shoes and the rationale for persevering with their design. | 22th May 1931 | Box 12 \ 5 05-page294 | |
| Configuration and results of brake tests. | 29th May 1931 | Box 12 \ 5 05-page295 | |
| Tests and a proposed solution for rear foot brake groans on the Phantom II model. | 29th May 1931 | Box 12 \ 5 05-page296 | |
| Extract from a 10,000-mile trial report concerning tests on stiffer brake drums and pivoted shoes. | 30th May 1931 | Box 12 \ 5 05-page297 | |
| Brake adjustment procedure for the Phantom II No.2 Series and all left-hand drive cars. | 30th May 1931 | Box 12 \ 5 05-page298 | |
| Complaint about rear foot brake groans on the Phantom model. | 5th Jun 1931 | Box 12 \ 5 05-page299 | |
| Solutions for rear brake groans and squeaks, including an anti-squeak shoe. | 9th Jun 1931 | Box 12 \ 5 05-page300 | |
| Modifications to the brake systems for chassis Nos. 26-EX and 31-GX during sales trials. | 10th Jun 1931 | Box 12 \ 5 05-page301 | |
| Requesting the preparation of various brake parts for experimental cars. | 29th Jun 1931 | Box 12 \ 5 05-page302 | |
| Proposal to scrap certain 40/50 HP brake shoe liners held by Ferodo Limited and in the company's own stores. | 8th Jul 1931 | Box 12 \ 5 05-page303 | |
| Cover letter from G.W. Hancock sending a report upon a brake test. | 27th Jul 1931 | Box 12 \ 5 05-page304 | |
| Series of tests to diagnose and resolve rear brake groans on the Phantom II. | 27th Jul 1931 | Box 12 \ 5 05-page305 | |
| Series of tests on brake drums to eliminate groans and vibrations. | 11th Aug 1931 | Box 12 \ 5 05-page306 | |
| Confirming the decision to scrap 40/50 HP brake liner material due to a high rate of wear. | 11th Aug 1931 | Box 12 \ 5 05-page307 | |
| Brake test results and component specifications for chassis 19-EX. | 19th Oct 1931 | Box 12 \ 5 05-page308 | |
| Brake tests for a 19-EX vehicle, detailing cold measurements, stopping distances, and brake component specifications. | 20th Oct 1931 | Box 12 \ 5 05-page309 | |
| Testing of 45° cam angles for foot brakes on R.H. and L.H. chassis. | 18th Nov 1931 | Box 12 \ 5 05-page310 | |
| Standardisation of chassis parts for rear brakes with a flexible toe. | 25th Sep 1931 | Box 12 \ 5 05-page311 | |
| Standardisation form detailing the fitting of a new part, including chassis number and costs. | 1st Nov 1931 | Box 12 \ 5 05-page312 | |
| Weight comparison sheet for various 1-40/50 model brake drum assemblies and their components. | 1st Nov 1931 | Box 12 \ 5 05-page313 | |
| Standardisation of chassis parts for the lubrication of the rear brake actuating shaft. | 25th Sep 1931 | Box 12 \ 5 05-page314 | |
| Rear brakes with pivoted shoes 'coming on' during dynamometer testing and requesting an increase in clearance. | 9th Dec 1931 | Box 12 \ 5 05-page315 | |
| Adjustments and clearances for rear pivoted brake shoes P.II. | 15th Dec 1931 | Box 12 \ 5 05-page316 | |
| Draft leaflet for brake adjustment in the 40/50 HP Chassis Handbook No. VII. | 18th Dec 1931 | Box 12 \ 5 05-page317 | |
| Leaflet providing updated measurements for brake adjustments on a 40/50 HP chassis. | 1st Mar 1940 | Box 12 \ 5 05-page318 | |
| On a cover sheet indicating the location of previous correspondence. | 22th Jan 1931 | Box 12 \ 6 06-page001 | |
| Instruction to Messrs. Sanderson & Holmes to carry out work on chassis 18-EX as per the attached estimate. | 22th Jan 1931 | Box 12 \ 6 06-page002 | |
| Instruction to Messrs. Sanderson & Holmes to carry out work on the 20-EX Chassis as per an attached estimate. | 22th Jan 1931 | Box 12 \ 6 06-page003 | |
| Instruction to Messrs. Sanderson & Holmes to carry out work on a 24-EX chassis per an attached estimate. | 23th Jan 1931 | Box 12 \ 6 06-page004 | |
| Instruction to Messrs. Sanderson & Holmes to carry out work on chassis 24-EX per an attached estimate. | 23th Jan 1931 | Box 12 \ 6 06-page005 | |
| Authorising work on Chassis 22-EX by Messrs. Sanderson & Holmes. | 23th Jan 1931 | Box 12 \ 6 06-page006 | |
| Instruction to Messrs. Sanderson & Holmes to carry out work on the 22-EX chassis per an attached estimate. | 26th Jan 1931 | Box 12 \ 6 06-page007 | |
| Internal order instructing Messrs. Sanderson & Holmes to perform work on chassis 24-EX as per the attached estimate. | 26th Jan 1931 | Box 12 \ 6 06-page008 | |
| Instruction to carry out work on chassis 19-EX as per attached estimate. | 26th Jan 1931 | Box 12 \ 6 06-page009 | |
| Instruction memo for work to be carried out on chassis No. 20-EX by Messrs. Sanderson & Holmes. | 16th Feb 1931 | Box 12 \ 6 06-page010 | |
| Technical analysis of engine vibrations and body resonance, discussing their causes and potential solutions. | 16th Apr 1931 | Box 12 \ 6 06-page011 | |
| Analysis of engine vibrations, mounting inefficiencies, and potential solutions for a 6-cylinder engine. | 16th Apr 1931 | Box 12 \ 6 06-page012 | |
| Analysis of crankshaft torsional harmonics and flywheel whirl vibrations, with proposed solutions. | 16th Apr 1931 | Box 12 \ 6 06-page013 | |
| Engine vibration issues at various speeds, their potential causes like flywheel whirl, and proposed solutions. | 16th Apr 1931 | Box 12 \ 6 06-page014 | |
| Improving vehicle performance by addressing torque vibrations, engine mounting, and chassis stiffness. | 16th Apr 1931 | Box 12 \ 6 06-page015 | |
| Improving frame rigidity for better steering by using lozenger steel strips and torque arms. | 28th Feb 1931 | Box 12 \ 6 06-page016 | |
| Solutions for body booming and vibration, focusing on chassis construction and engine mounting designs. | 28th Feb 1931 | Box 12 \ 6 06-page017 | |
| Chassis and body vibration, stiffness, and the development of dampers. | 3rd Mar 1931 | Box 12 \ 6 06-page018 | |
| Instruction to Messrs. Sanderson & Holmes to carry out work on Chassis 24-EX. | 3rd Mar 1931 | Box 12 \ 6 06-page019 | |
| Technical memorandum discussing the diagnosis of engine and body vibrations, known as 'booms', and potential solutions. | 7th Mar 1931 | Box 12 \ 6 06-page020 | |
| Engineering improvements to the chassis and engine to mitigate impulses and achieve a quieter vehicle. | 13th Mar 1931 | Box 12 \ 6 06-page021 | |
| Causes and potential solutions for 'booming' or vibration issues in P.2. & 25HP cars. | 13th Mar 1931 | Box 12 \ 6 06-page022 | |
| Methods to reduce torsional vibrations and booming through engine and body mounting. | 13th Mar 1931 | Box 12 \ 6 06-page023 | |
| Potential causes of vehicle noise and vibration, including the flywheel, chassis, and body mounting. | 13th Mar 1931 | Box 12 \ 6 06-page024 | |
| Engine vibration issues in models Phantom I and P.2, expressing frustration with the problem. | 4th Mar 1931 | Box 12 \ 6 06-page025 | |
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