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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).
Status report on design changes and drawings for the 3½ Litre Bentley Chassis.

Identifier  ExFiles\Box 30\4\  Scan127
Date  23th March 1934
  
- 9 -
BY.1/G.23.3.34.

3½ LITRE BENTLEY CHASSIS.

LeC. 3798 Unbalanced Radiator Shutters ................. Recd. 7.2.34.
Detail drawings completed and issued .............. 27.2.34.

N. Sch. 3948 Clutch with Lightened Flywheel and Increased
Friction Surfaces ............................ Recd. 26.1.34.
Detail drawings completed and issued .............. 5.3.34.

N. Sch. 3954 Easy Adjustment for Clutch for application to
existing cars ................................ Recd. 22.1.34.
Detail drawings completed and issued .............. 27.2.34.

N. Sch. 3960 Spring Loaded Spherical Brg. for Pedal Shaft
in Gearbox ................................... Recd. 29.1.34.
Detail drawings completed and issued .............. 5.3.34.

N. Sch. 3944 "Perfect" Oil Seal - Rear Axle Pinion Bearing. Recd. 20.1.34.
Detail drawings completed and issued .............. 26.2.34.

N. Sch. 3786 Layout of Front Brake Mech: .525 Cams -
14.125 Dia. Drums. .375 Liners................ Recd. 21.2.34.

N. Sch. 3787 Layout of Rear Brake Mech: .4675 Cams -
14.125 Dia. Drums. .375 Liners................ Recd. 21.2.34.

N. Sch. 3974 Aluminium Brake Shoes - Rear Brakes 14.125 Dia.
Drums ........................................ Recd. 15.2.34.

N. Sch. 3978 Toggle Movements - Rear Brakes ............... Recd. 15.2.34.

N. Sch. 4004 Stiffened Front Brake Shoe Mounting to suit
existing brake design (12.000 drums) ......... Recd. 6.3.34.

N. Sch. 4005 Stiffened Front Brake Shoe Mounting to suit
14.000 dia. drums ............................ Recd. 6.3.34.
The whole question of braking is being reviewed.

N. Sch. 3972 Strengthened Attachment of Front Damper to the
Frame ........................................ Recd. 15.2.34.
Detail drawings completed and issued .............. 20.2.34.

N. Sch. 3973 Brakes - Suggested Water Baffle and Trap ..... Recd. 13.2.34.
This is being dealt with by Experimental Department.

N. Sch. 3979 Toggle Movements- Front Brakes ................ Recd. 17.2.34.
Detail drawings are in hand.

N. Sch. 3980 Aluminium Brake Shoes - Front Brakes 14.125 Dia.Drums. Recd. 17.2.34.
Detail drawings are in hand.
  
  


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