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).
Article reviewing new Palmer Diesel engines and Universal Sea-Lion series marine engines.
| Identifier | ExFiles\Box 133\3\ scan0129 | |
| Date | 1st January 1940 guessed | |
| the base plate, for raising and lowering the propeller assembly. In this installation, it is necessary to use a two-blade propeller, which must be in a vertical position before drawing the assembly up into the well. To facilitate this operation, a small indicator is provided on the drive shaft, so that the operator can tell the exact position of the propeller. With the propeller in the proper position, the lifting rack is turned and the lower assembly moves up until the bottom plate closes with the upper gear housing, the entire operation being a matter of only seconds. The new engines introduced this year are: a new 6- and a new 8-cylinder engine, known as the Sea-Lion series; and a shorter Flexifour. The new Flexifour is shorter, lighter and more compact than its predecessor. It develops 40 hp. at 3500 r.p.m. and is completely salt water equipped, with chrome nickel alloy iron castings throughout. This model is equipped with built-in reverse gears; gear-driven accessories, such as water pump, generator and oil pump; extra large water jackets with removable plates arranged to facilitate cleaning out of water jackets; built-in hand sump pump, etc. Both direct and reduction gear drive are available. Finally, this newest Sea-Lion series marks another step in broadening the range of Universal models. This series includes a powerful “six,” the model 6-260, with a bore and stroke of 3½" by 4½", a piston displacement of 260 cubic inches, and is rated 110 hp. at 3400 r.p.m.; and a still more powerful 8-cylinder engine, model 8-347, which is the most powerful in the Universal line. This engine has a bore and stroke of 3½" by 4½" and a piston displacement of 347 cubic inches. A special large manifold uses this displacement to the best advantage and, with dual carburetion, this engine develops 141 hp. at 3400 r.p.m. Both direct and reduction gear drives are available. Below, the Universal Sea-Lion Six, Model 6-260 a new engine with 3½" bore and 4½" stroke 260 cubic inches displacement. It is rated 110 hp. at 3400 r.p.m. Left is the Sea-Lion Eight of 141 hp., the largest in the line Palmer Perfects A Diesel Prominent in the display of the Palmer Engine Co., of Cos Cob, Conn., is the company's new 4-cylinder Diesel, now having its first public showing after more than a year of testing and tooling to place the model on a production basis. The RND4, as it is called, is a full Diesel with 4⅛" bore and 6" stroke, which develops 40 hp. at 1200 r.p.m., and measures 72" in length by 26" in width and 33" in height. Extreme economy and silence are among the outstanding claims advanced for this new job, its radical difference from other Diesels being its two-diameter piston. The unique design of the piston permits only a small diameter plug to enter the chamber, with the result that with the combustion of the fuel and the downward movement of the piston the area of the piston exposed to pressure becomes greater. Thus detonation is reduced, while turbulence is intensified, the one result being to quiet the engine's performance and the other being to increase combustion and promote economy of operation. A single-cylinder model having the same cylinder dimensions as the RND4 is also produced by Palmer who state that it is ideal for operating generator sets, ice plants, machine shops, air compressors and pump units. This RND1 delivers 9 hp. at 1000 r.p.m. In addition to the new Diesel job Palmer is, of course, showing various models of its famous gasoline line. The RND 4 makes its first public appearance at the Palace. It is a 4-cylinder Diesel manufactured by Palmer Bros. Engines, Inc. It develops 40 hp. at 1200 r.p.m. and weighs 2500 pounds. | ||