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).
Tests of standard and special rear springs, giving load per inch of deflection.
Identifier | ExFiles\Box 79\3\ scan0168 | |
Date | 10th November 1913 | |
From Exp. Dept. Copies for: J.{Mr Johnson W.M.} R.{Sir Henry Royce} Ha. Da.{Bernard Day - Chassis Design} Wor{Arthur Wormald - General Works Manager}/Hyll/L101113. November 10th. 1913. Tests of Standard and special Rear Springs giving load per inch of deflection. X.910. Two springs were tested, one being a standard rear spring and the other a rear spring with plates of equal thickness, equal curvature, and clipped ends. Standard. Special. No. of Plates. 9 8 Thickness of spring. 3.14" 2.9" Weight of spring. 75.5 lbs. 69 lbs. Thickness of top Plate. .42" .36" Initial Camber. 1.9" 2" Load at 1" camber. 316 lbs. 333 lbs. " " 0 " 650 " 665 " " " 1" neg. camber. 977 " 989 " " " 2" " 1348 " 1344 " " " 3" " 1761 " 1722 " " " 4" " 2256 " 2139 " " " 5" " 2816 " 2545 " Both springs were greased between the plates before testing. | ||