Rolls-Royce Archives
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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).
Drawing for a left-hand worm steering gear with a 20:1 ratio.

Identifier  ExFiles\Box 170\2\  img101
Date  8th December 1931
  
SAGINAW STEERING GEAR DIVISION
GENERAL MOTORS CORPORATION
SAGINAW, MICHIGAN, U.S.A.
WORM STEERING LH{Mr Haworth}-20:1.
PART NO. 261290.
MAT. STEEL
DRAWN BY F.E.K.
TRACED BY
DATE DEC. 8, 1931.
CHECKED BY G.W.S. 6/11
APPROVED BY
SCALE FULL SIZE.
READ ALL NOTES BEFORE STARTING WORK.
DO NOT SCALE DRAWINGS: WORK TO DIMENSIONS.
DRILLED HOLE SIZES GIVE AN ALLOWANCE OF MINUS .001" TO PLUS .004"
'f' - FINISH ALLOWANCE.
f - finish, f-ii, f-iii, f-iv, etc.
REPORT ERRORS.
REVISIONS
DATE
CH'K.{Mr Kilner}
SHARP EDGES AT BOTH ENDS WHERE THREAD RUNS OUT TO BE MILLED SO THAT NO PART WILL BE LESS THAN 1/8 THICK
.8107
20° - 20°
TOOTH FORM - 4-TIMES SIZE
WORM GEAR SHAFT
  
  


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