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).
Product specification sheet for the Empress High Pressure Lubricating System and its components.
| Identifier | ExFiles\Box 42\5\ Scan104 | |
| Date | 9th April 1921 guessed | |
| Empress High Pressure Lubricating System EMPRESS High Pressure Lubricating System Patents Applied For No. 400. The Empress Gun is 15 inches over all, handle extended. Body 6 inches long. Finished in dull nickel plate. Grease or oil capacity 8 ounces. Price each ..............$6.00 No. 412 90° Elbow Connection No. 410 Straight Connection No. 414 45° Elbow Connection For use on the water pump or places where the lubricant is likely to throw out due to centrifugal force these connections are fitted with ball checks (inside). With oil, ball check connections must be used when the connections are placed in horizontal or inverted positions. Connections Number, Thread, Price Each 410, Straight .............. ⅛" Pipe 410, Straight .............. ¼" Female 410, Straight .............. 5/16"-32 U.S.F. 411, Straight, Ball Check ... ⅛" Pipe 412, 90° Elbow ............ ⅛" Pipe 412, 90° Elbow ............ ¼" Female [Right Page] Empress High Pressure Lubricating System Number, Thread, Price Each 412, 90° Elbow .............. ⅛" Pipe 412, 90° Elbow .............. 5/16-32 U.S.F. 413, 90° Elbow, Ball Check .. ⅛" Pipe 414, 45° Elbow .............. ⅛" Pipe 414, 45° Elbow .............. ¼" Pipe 414, 45° Elbow .............. 5/16-32 U.S.F. 415, 45° Elbow, Ball Check .. ⅛" Pipe No. 426 Bolt Adapters, Female ¾" Diam. x 24 Thd. 13/16" Diam. x 20 Thd. 13/16" Diam. x 24 Thd. ⅞" Diam. x 24 Thd. 1" Diam. x 20 Thd. No. 427 Bolt Adapters, Male ¾" Diam x 18 Thd. ¾" Diam x 20 Thd. 13/16" Diam x 20 Thd. 13/16" Diam x 24 Thd. ⅞" Diam. x 20 Thd. .9025" Diam x 20 Thd. 1" Diam x 24 Thd. 1 1/16" Diam x 20 Thd. No. 445 Extension Pipe Nipple ⅛" Pipe x ¾" ⅛" Pipe x 1" ⅛" Pipe x 1½" ⅛" Pipe x 2" ⅛" Pipe x 3" ⅛" Pipe x 4" ⅛" Pipe x 5" ⅛" Pipe x 6" No. 446 Bushings ¼" x ⅛" Pipe ⅜" x ⅛" Pipe ½" x ⅛" Pipe ½" x ¼" Pipe No. 447 Couplings ⅛" x ⅛" Pipe No. 448 Elbows ⅛" x ⅛" Pipe ¼" x ¼" Pipe | ||