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).
Patent specification for improvements in or relating to vehicle wheels.
| Identifier | ExFiles\Box 137\5\ scan0222 | |
| Date | 28th June 1937 | |
| 1159? File Susp PATENT SPECIFICATION 487,179 Application Date: June 28, 1937. No. 17898/37. Complete Specification Accepted: June 16, 1938. COMPLETE SPECIFICATION Improvements in or relating to Vehicle Wheels We, FREDERICK WILLIAM BAKER, a British Subject, of Oldswinford, Stourbridge, and WILLIAM ERNEST BARCLAY, a British Subject, of 27, Augustus Road, 5 Edgbaston, Birmingham, do hereby declare the nature of this invention and in what manner the same is to be performed, to be particularly described and ascertained in and by the following 10 statement:— This invention relates to means for detachably mounting a vehicle wheel on an axle or shaft of the type in which the wheel is held in driving connection with 15 the axle or shaft or member thereon by means of a resilient or rubber member or members which is or are compressed by means of a screwed member engaged on the end of the axle or hub thereon, and 20 it has for its object means whereby the screwed member is utilised to apply end pressure in accordance with the power transmitted by the axle to the wheel, whilst ensuring that the pressure on the 25 resilient members will not be released when the drive is reversed. According to the present invention means are provided to prevent the screwed member unscrewing when the vehicle is 30 driven in reverse, so that the resilient member or members will be retained in a compressed condition during such reverse drive. In order that the invention may be 35 clearly understood and readily carried into effect, reference may be had to the accompanying drawings on which:— Figure 1 is a sectional elevation of a wheel mounting constructed according to 40 this invention. Figure 2 is a sectional elevation of a modified form of locking member. Figure 3 is a sectional elevation of a further form of the invention, and 45 Figures 4 and 5 are cross-sections of rubber discs. According to a convenient embodiment of this invention, the axle shaft 1 of a motor vehicle has fixed thereon a hub 50 member 2 and the brake drum 3. The road wheel 7 is mounted in driving connection with the axle 1 through the medium of a rubber disc 4 (Figures 1 and 4) having a sleeve 5 which is threaded on 55 the member 2. The wheel 7 is mounted on the sleeve 5 so that it is insulated from the member 2 and has a recess 6 which receives the rubber disc 4. On the outer face, the wheel 7 has a recess 8 60 which receives a rubber disc 9 (Figures 1 and 5) threaded on the member 2. A screwed member 10 is internally screw threaded and is screwed on the external outer end of the member 2 and is adapted 65 to bear against a pressure plate 11 arranged on the outside of the rubber disc 9. The screwed member 10 compresses the rubber discs 4 and 9, so that the road 70 wheel 7 is in driving connection with the axle or parts thereon. When the axle is rotating to drive the road wheel forward, the force transmitted by the axle tends to screw the member 10 axially to 75 further compress the rubber discs so that the road wheel 7 is resiliently gripped in driving connection with the axle shaft in accordance with the power transmitted. The disc 9 is compressed between 80 the pressure plate 11 and the wall of the recess 8 opposite such plate and the rubber is squeezed outwardly so that it grips the annular faces of the recess 8 and the member 2. At the same time the wheel 85 7 is pressed to compress the rubber disc 4 between the wall of the brake drum 3 and the face of the recess 6 opposite such brake drum and at the same time rubber is squeezed outwardly to be pressed 90 against the annular face of the recess 6 and the member 2. The compression of the rubber increases with the power transmission and therefore the greater the power transmitted the greater is the grip 95 binding the road wheel in driving connection with the axle shaft or member thereon. The outward pressure of the rubber disc against the annular faces forms the main or an important part of 100 the binding connection. The discs, rings or washers 4 and 9 preferably increase in thickness towards the periphery as shown. The driving force has to pass through the mass of rubber and therefore 105 the drive is through a resilient body which absorbs shock and vibration and [Price 1/-] | ||