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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).
Blueprint of propeller shafts with No 50x1' patent 'Layrub' joints.

Identifier  ExFiles\Box 87\3\  scan0034
Date  24th July 1933
  
TOP NOTES:
SLEEVE BOLTS & NUTS PT No 811 & 9681/4. TR.{Capt. F. W. Turner - Finance} 17/7/33
WERE DARTSELET BOLTS & NUTS PT No 530 & 531. DRG.No 7047.
SHAFT TO DRG. No 2543 x 7 ADDED. W.H.C. 29.3.34.
IMPORTANT - TUBING FLANGES MUST BE IN ALIGNMENT WITH ONE ANOTHER.
3'-10 1/2" 4 SPEED G.B. LONG CHASSIS 2 1/2 O.DIA. TUBE.
4'-2 1/16" 4 SPEED G.B. LONG CHASSIS 2 1/2 O.DIA. TUBE.
4'-3 3/4" 3 SPEED G.B. LONG CHASSIS. 2 1/2 O.DIA. TUBE.
2'-8 13/16" 4 SPEED G.B. SHORT CHASSIS. 2" O.DIA. TUBE.
2'-9 15/16" 3 SPEED G.B. SHORT CHASSIS. 2" O.DIA. TUBE.
TUBING FLANGE FOR 2 1/2 O.DIA. TUBE DRG. No 8344 PT No 504.
FOR 2" O.DIA. TUBE DRG. No 8348 PT No 533.

DRAWING ANNOTATIONS:
DRILLED RIVET
NOTE - OUTSIDE DIA. MUST BE KEPT CLEAR OF BALANCING STRIPS FOR THIS LENGTH AT BOTH ENDS. (JOWETT LETTER 15.9.33.)
15"
CHAMFER 2 1/2 O.D. TUBE TO 2 13/32 DIA. AT 45° BOTH ENDS.
CHAMFER 2" O.D. TUBE TO 1 29/32 DIA. AT 45° BOTH ENDS.
2 1/2 O.DIA. x 16 S.W.G. FOR LONG CHASSIS
2" O.DIA. x 16 S.W.G. FOR SHORT CHASSIS
3/8" DIA. SPLIT PIN 1" LONG.
BOLT AND NUT
3/8 B.S.F. SET SCREW 1/2" LONG
5/16 KOLOK SPRING WASHER No 23, 1/8" x 1/16" SECTION.
1" DIA. HOLE BORED IN CENTRE OF TRUNNION HOUSING
DRG. NO 6565 PT NO 507
DRG No 6568, PT No 510
DRG No 6551, PT No 527
DRG No 6567 PT No 509
DRG. No 6569 PT No 511.
DRG. No 9681, PT No 9681/4
MAX. ALLOWABLE ANGULARITY BETWEEN AXES - 10°

TABLES:
4'-2 1/16 4 SPEED G.B. LONG CHASSIS (FREE WHEEL)
4'-6 13/16 4 SPEED G.B. LONG CHASSIS.
4'-7 13/16 3 SPEED G.B. LONG CHASSIS.
3'-0 7/16 4 SPEED G.B. SHORT CHASSIS.
3'-1 1/2 3 SPEED G.B. SHORT CHASSIS.

4'-10 1/16 4 SPEED GEAR BOX. LONG CHASSIS. DRG. No 2543 x 3. SCHEDULE No PR 18.
4'-11 1/8 3 SPEED GEAR BOX. LONG CHASSIS. DRG. No 2543 x 4. SCHEDULE No PR 19.
3'-4 3/16 4 SPEED GEAR BOX. SHORT CHASSIS. DRG. No 2543 x 5. SCHEDULE No PR 20.
3'-5 1/4 3 SPEED GEAR BOX. SHORT CHASSIS. DRG. No 2543 x 6. SCHEDULE No PR 21.
4'-5 7/8 4 SPEED GEAR BOX. LONG CHASSIS (FREE WHEEL). DRG. No 2543 x 7. SCHEDULE No PR 28.

CONFIDENTIALITY NOTICE:
THIS DESIGN IS STRICTLY PRIVATE AND CONFIDENTIAL AND IS THE EXCLUSIVE PROPERTY of LAYCOCK ENGINEERING Co. IT MUST NOT BE USED, COPIED OR EXHIBITED WITHOUT THEIR WRITTEN PERMISSION.

STAMP:
LAYCOCK ENGINEERING Co. * SHEFFIELD * 17 JUL 1934

TITLE BLOCK:
DRG. NO 8349
LAYCOCK ENGINEERING Co SHEFFIELD.
PROPELLER SHAFTS WITH No 50x1" PATENT "LAYRUB" JOINTS.
ALL SHAFTS TO BE STENCILLED "LAYRUB"
MAX. ENGINE TORQUE 37.5 lbs ft.
WHIP TEST SPEED 5000 R.P.M.
MAX. ENGINE SPEED 4250 R.P.M.
ORDER No PR 5173
DRN JH 34793
TRACED JH 24.7.33
  
  


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