Air Cooling for Brakes
Page 57
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k IR-VANES built into the wheels have "V been tried in the past to induce coolg of the brake drums, but the low rtational speeds of the road wheels have en found to be scarcely effective as a ewer. A scheme shown in patent No. )2,051 utilizes air vanes, but use is made f the higher speed of the halfshaft of Lab reduction gearing to create a more gorous flow. (Albion Motors Ltd. and Kemp, both of South Street, Scotstoun, lasgoW, W.4.)
Referring to the drawing, which shows a twin-wheeled hub, the driving halfshaft terminates in a sun pinion (1). This meshes with a set of planet pinions on a carrier (2) which mesh in turn with a stationary ring-gear (3). The planetcarrier transmits the main drive to the wheel hub. This much is a well-known method of obtaining a hub-mounted reduction in the main drive.
The novelty in this case is that the highspeed drive of the halfshaft is brought
out at the end to carry the rotor (4) of a blower. The air is blown through ducts to emerge at the point (5) having passed over the finned brake drum (6).
The patent discloses also a similar scheme for a non-driving wheel; in this case a special epicyclic speed-increaser has to be provided.
Lightweight Container
AGOODS container constructed mainly of plastics forms the subject of patent No. 899,180. It is intended for transporting goods by a road-rail system or even road-to-air. (Mickleover Transport Ltd., 31 St. Petersburgh Place, London, W.2.)
Dual-Purpose Body
A BODY that can be used for general PA work, or by fitting special units, for sand and gravel transport, forms the subject of patent No. 898,372. (J. Appleton, Downholland Bridge Garage, Downholland, Ormskirk, Lancs.)
No-Loss Cooling System
PATENT No. 896,850 shows an enginecooling system designed to deal with the problems associated with underfloor engines and their cramped radiators, particularly with regard to the replenishment of water loss. (Leyland Motors Ltd., Hough Lane; Leyland, Lancs.)