From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Letter from Harrison Radiator Division concerning the price and specifications of thermostats.
| Identifier | ExFiles\Box 156\1\ scan0226 | |
| Date | 21th July 1937 | |
| HARRISON 1328. HARRISON RADIATOR DIVISION GENERAL MOTORS CORPORATION LOCKPORT NEW YORK July 21, 1937 Udw Th/SJD Rolls-Royce Limited Derby England Attention: Mr. C. S. Steadman Gentlemen: Replying to your letter of July 8 regarding Thermostat part 3108572, we wish to advise that our quotation of 32¢ each was based on a production item. We can furnish Thermostats to the design of D-3108572 except with start to open of 170-176°; however, we find it necessary to slightly increase our price and for a Thermostat to this specification our price would be 34¢ each in lots of 1000 or more boxed for export, f.o.b. Lockport, New York. Our unit is a balanced Thermostat and the Buick Motor Company uses a by-pass in connection with same. If possible, we would suggest that you look over the installation on a Buick automobile. The by-pass valve is controlled by a 5-pound spring and both the by-pass valve and Thermostat valve are in the closed position when the motor is started. As pressure builds up the by-pass valve is slowly opened until the Thermostat valve opens at which time the by-pass valve slowly closes. Arrangements have been made for a permanent leakage around the by-pass valve which is equal to the leakage through a 7/16 diameter hole. We are arranging to ship you three Thermostats to drawing D-3108572 except that the start to open will be 170-176°. Yours very truly HARRISON RADIATOR DIVISION GENERAL MOTORS CORPORATION H.{Arthur M. Hanbury - Head Complaints} H.{Arthur M. Hanbury - Head Complaints} Smith Sales & Service Department HHS:VN RADIATORS . HEAT EXCHANGERS . OIL TEMPERATURE REGULATORS . THERMOSTATS . HEATERS | ||