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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).
Hand brake mechanism, footbrake adjustment, actuating box, and wiring.

Identifier  ExFiles\Box 81\2\  scan0174
Date  7th October 1924
  
(11) Hand brake mechanism.(cont'd.{John DeLooze - Company Secretary})
To the side of the frame and connect up with the existing standard equalizing gear without change.
Following Mr. Royce's suggestion the brake rack was not separate-ly attached to a bracket on the frame but was supported as a cantilever off the outer bearing bracket.
This made it much easier to assemble and dismantle the brake mechanism.

(12) Footbrake adjustment.
This uses the same parts as the existing adjustment except that it is lengthened and supported on the gearbox at its inner end, and the spiral serrations in the two levers are reversed. Layout drawing is sent herewith. This was previously submitted to England, and approved.

(13) Actuating Box.
This is unchanged from drawings previously taken over. It re-quired no attention and worked perfectly.

(14) Wiring.
This is simply an extension of the present wiring layout, to cover in all wires on the dashboard.
The junction and fuse box is simply a widened portion of the conduit with removable cover, made of aluminum for test, but to be made of Bakelite molded. The fuse board below this cover is fastened to the dash as before and contains provision for all lights etc. including body fuse and stop light fuse.

Wiring for the stop light is completed to the rear end of the car. The stop light switch is mounted on the left side of the front gearbox arm for direct connection to the brake pedal.

A combined stop and tail light of the Massachusetts approved form will be used, held on a tubular bracket off the left hand trunk rack side member. The tubular bracket will carry the two cables which will thus be out of sight.
Since a 21 c.p. bulb has to be used for the stop light, and we use a green glass for this, we get a very good illumination for backing by using slight foot pressure on the pedal and controlling speed by the governor lever. A separate backing light is thus unnecessary.
An instrument board tell-tale light was used on test in combina-tion with the stop light.
It is not proposed to fit this as standard because it is so easy to verify the stop light like the tail light, by glancing backwards.
Space is provided in the conduits for fitting a tell-tale if required.
  
  


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