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).
Sales follow-up letter from the Double Seal Ring Co. regarding a trial order for their piston rings.
| Identifier | ExFiles\Box 77\1\ scan0060 | |
| Date | 2nd April 1921 | |
| X4362 DOUBLE SEAL RING CO. PISTON RINGS PATENTED NOV 21, 1916. DOUBLE SEAL TRADE MARK REGISTERED SEALS THE GROOVE - SEALS THE WALL - ONE GROOVE SEALS THE WALL OF THE CYLINDER SEALS THE GROOVE OF THE PISTON SALES BRANCHES Double Seal Ring Co. ATLANTA, GA. 66 1/2 N. Forsyth St.{Capt. P. R. Strong} BALTIMORE, MD. 1710 N. Charles St.{Capt. P. R. Strong} CHICAGO, ILL. 1517 Michigan Avenue CLEVELAND, OHIO 1841 Euclid Avenue DALLAS, TEXAS 208 Browder Street DENVER, COLO. 430 Eighteenth Street DETROIT, MICH. 415 Grand River Ave. EL PASO, TEXAS 412 Myrtle Avenue FRESNO, CAL.{Mr Calvert} 1841 Merced Street FT. WORTH, TEXAS 316-328 Lake Street HOUSTON, TEXAS 1212 Main Street KANSAS CITY, MO. 214 East 17th Street LITTLE ROCK, ARK. 414 Louisiana Street LOS ANGELES, CAL.{Mr Calvert} 603 West Pico Street MEMPHIS, TENN. 128 Monroe Avenue NEW ORLEANS, LA.{L. A. Archer} 808 St.{Capt. P. R. Strong} Charles Street NEW YORK CITY 1834 Broadway OKLAHOMA CITY, OKLA. 423 N. Broadway OMAHA, NEB. 310 S. 19th Street PITTSBURGH, PA.{Mr Paterson} 206 Werner Bldg. Hiland and Baum Sts. SACRAMENTO, CAL.{Mr Calvert} 1016 J Street SAN ANTONIO, TEXAS 314 Kampmann Bldg. SAN FRANCISCO, CAL.{Mr Calvert} 1124 Polk Street SEATTLE, WASH. 1213 Pine Street STOCKTON, CAL.{Mr Calvert} 106 N. California St.{Capt. P. R. Strong} WACO, TEXAS 106 S. 4th Street WINDSOR, ONT., CAN. W/HS{Lord Ernest Hives - Chair} Rolls-Royce Co., 14 Conduit St.{Capt. P. R. Strong}, London, Eng. New York, April 2, 1921. MD Attention Mr. Hives, Engineer. Dear Sirs: The writer had the pleasure of demonstrating to you DOUBLE SEAL RINGS at the Rolls-Royce factory at Springfield, Mass. He understood at the time that as soon as Mr. Olley, who was then sick, returned that we might receive a trial order for a set of DOUBLE SEAL RINGS. We called at the factory recently, met Mr. Olley and he stated that they could not use even for trial anything except they had your written approval and instructions so to use. We will very much appreciate the favor if you will find it convenient and practical to favor us with an order for a trial installation to be made either here at your New York service station or at the factory at Springfield. It may refresh your memory to state that one 1/4" ring is sufficient for compression placed in the top groove of your piston with the solid edge of the ring looking toward pressure, and another ring may be placed in opposite position in the first groove above the wrist pin so as to pack against suction and prevent the passage of oil from the crank case to the combustion chamber. This comprises a very practical installation and one which definitely separates the combustion chamber from the crank case and vice versa. Your further interest in our product will be very much appreciated. Yours very truly, DOUBLE SEAL RING CO. OF N.Y. By O.P.Sells OPS.W RECEIVED RECEIVED | ||