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).
Blueprint drawing for a Chevrolet thermostat assembly with specifications.
| Identifier | ExFiles\Box 149a\3\ scan0205 | |
| Date | 24th February 1937 | |
| AT 29" BAROMETER VALVE MUST START TO OPEN AT 140° TO 145°F.{Mr Friese} & BE FULLY OPEN AT 170°F.{Mr Friese} ~ AGITATED LIQUID BATH. LEAKAGE ~ .9 GAL. PER MIN. AT 20 LBS. PRESSURE - 60° WATER 1/16 DIA. SEEPAGE HOLE BEFORE FORMING. SOLDER HERE AFTER TEMPERATURE ADJUSTMENT VALVE MUST SEAT FLAT & SMOOTH ALL AROUND. 8 CONVOLUTIONS STAMP H.R.C., MONTH & YEAR OF MFG., AND MEAN TEMP OPENING. NOTE: MUST RECEIVE ENGINEERING APPROVAL Part Numbers referenced: 3041260, 3106986, 3106985, 3106990, 3108576, 3108573, 3106987, 3099335, 3099336, SOLDER WASHER 3099337, 3108575. G.M. TRADE MARK SIZE NO. 2 CHEVROLET PART NAME: THERMOSTAT ASSEMBLY T-75 MODEL NO. 3835 HARRISON RADIATOR CORP. LOCKPORT, N. Y. REVISION TABLE: RELEASED, 2-24-37, KB REPLACES T-43, 2-24-37, H.S. 1, REDESIGNED, 2-4-37, E.R. DSN. McGONIGLE DEL. METCALF, DATE 2-4-37 TR.{Capt. F. W. Turner - Finance} KEB, 2-4-37 APP. DATE 12-17-36 SCALE: 12" = 1 FT. (DO NOT SCALE) ± .010 ALLOWED ON ALL FRACTIONAL DIMENSIONS UNLESS OTHERWISE NOTED. | ||