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).
Specifications for the 1934 Buick Series 40 S.U.P., detailing the clutch, transmission, frame, and suspension.
| Identifier | ExFiles\Box 124\3\ scan0167 | |
| Date | 10th May 1934 | |
| Page 10 1934 BUICK SERIES 40 S.U.P. SPECIFICATIONS CLUTCH AND TRANSMISSION (CONT'D.{John DeLooze - Company Secretary}) TRANSMISSION - Constant Mesh Helical first, second and reverse speed gears, giving quiet operation in all speeds. Three speeds forward, one reverse. S.A.E. standard shift central control. All gears are of chrome nickel steel. Synchro-mesh with high and intermediate gears synchronized, giving easy and quiet shifting. Speedometer drive located at the rear of transmission case. Non-rattle rubber gear shift lever ball. Clutch Gear Shaft—Front (Pilot)________New Departure Ball Bearing Clutch Gear Shaft—Rear (Trans.Front)____New Departure Ball Bearing Main (Spline) Shaft—Front___________Hyatt Roller Bearing Main (Spline) Shaft—Rear___________New Departure Ball Bearing Countershaft—Front and Rear_________Bronze Bushings Reverse Idler_____________________Bronze Bushing RATIOS First_____2.94 to 1 Second____1.66 to 1 Third_____Direct Reverse___3.78 to 1 FRAME, SPRINGS AND SHOCK ABSORBERS FRAME - Cold-rolled pressed steel channel-section side members, double-drop rigid girder type. "X" type center cross member with front arms of the "X" member continuing along the inside of the frame from rear motor support to front cross member, thus forming a box type girder construction at the front half of the frame. Rear ends of "X" member are boxed into frame side members at point where rear shock absorbers are mounted to frame. Specially-designed front cross member for carrying the independent front wheel suspension system. This sturdy frame insures adequate strength for the mounting of the independent suspension system and provides an ideal rigid foundation for the body. Maximum Depth___________5-3/4" ( .146 m.{Mr Moon / Mr Moore} ) Stock Thickness_________1/8" ( 3.17 m/m.{Mr Moon / Mr Moore} ) Max. Flange Width________2-1/4" (57.15 m/m.{Mr Moon / Mr Moore}) Number of Cross Members__4 INDEPENDENT FRONT WHEEL SUSPENSION - In the construction of the Independent Front Wheel Suspension each front wheel is supported by two control arms upper and lower—designed somewhat in the form of the letter "A". The two legs of the "A" are fastened to the frame. The upper one is integral with the shock absorbers, and the lower one is mounted to the front cross member by means of a threaded shaft and threaded bushings. The outer ends of the control arms, or the tips of the "A" are connected to each other by the steering knuckle support which carries the steering knuckle, which in turn carries the wheel. This construction provides hinges at the end of the legs and the top of the "A" which permits vertical movement. Horizontal movement, however, is impossible, thereby assuring a rigid support for the steering knuckle. The Issued:-May 10, 1934. | ||