AT THE HEART OF THE ROAD TRANSPORT INDUSTRY.

Call our Sales Team on 0208 912 2120

A Cradle for Lifting Motor Vehicles

14th April 1933, Page 60
14th April 1933
Page 60
Page 60, 14th April 1933 — A Cradle for Lifting Motor Vehicles
Close
Noticed an error?
If you've noticed an error in this article please click here to report it so we can fix it.

Which of the following most accurately describes the problem?

THE cradle or sling shown in patent No. 388,206, by W. E. Darroch, 99, Kenilworth Avenue, Wimbledon Park, London, S.W.19, possesses a novel feature which in many cases, such as in shipping vehicles, may prove most useful.

The cradle can be placed over the vehicle, or detached, without moving the vehicle either forwards or back wards. The two side members are placed by the sides of the vehicle, crossmembers, (K) are then put in place and adjusted to the width by placing pins ("V) in suitable holes. Rods (L) are then inserted so that they vvill lift the wheels.

In some instances the cross-bars (K) can be used as front and rear supports for the wheels. The number of holes in the side members is so arranged that any length of vehicle can be accommodated. When the vehicle is deposited in the desired place, the cradle can be removed without shifting the vehicle.

Hardening of Brake-facing Fabrics.

A METIIOD of hardening the friction

materials for brakes and clutches where an oxidizable binder is used in connection with a fibrous base, such as asbestos, appears in patent No. 387,124, by the Raybestos Co., U.S.A.

The specification points out that when ordinary methods are employed, such as heating the block in an oxidizing atmosphere, it is only possible properly to harden the material to a depth of /3, in., 54 as wear takes place the brake facing

gradually becomes less efficient. This fact, coupled with a growing demand for thicker brake-facing materials, has led the company to disCover a method by means of which the thickest materials can be effectively hardened throughout.

The method is to pierce holes at certain distances apart, so that the volatile solvent may escape. The holes are made at a stage in the manufacture when the solvent has been partially driven off, after which the curing can be completed.

A Vacuum and Hydraulic Brake.

A BRAKE-ACTUATING arrangement which entails both vacuum and hydraulic pressure, is described in patent No. 388,446, by Matt Payne and B46 •

Clayton Dewandre Co., Ltd. The specification points out that where fluid pressure is employed to separate the brake shoes by means of plungers situated directly within the brake _drum, it is necessary that the cylinder in which they 'work must be of small diameter, consequently a much higher pressure is needed than could be obtained from the atmosphere acting against vacuum.

In the present invention two cylinders are employed, one, the larger, being operated by vacuum to cause a higher pressure in the smaller hydraulic cylinder, which is connected in T-fashion with the cylinder in which act the brake-separating plungers.

It will be seen that the two pistons :(4 and 4a) are rigidly secured, their cylinders being formed integral and mounted directly on the steering head.

A Self-adjusting Brake. A SELF-ADJUSTING brake is described in the patent a Gino Turrinelli, 2, via )3erchet, Milan, Italy. The general arrangement is similar to ordinary practice, so far as the shoe is concerned, the invention being confined to the abutment against which the shoe lies when in the off position.

A lever (MI) lies within the usual Shoe, and is fuIcrumed at its lower end to the back plate. A Segmental slot is provided at FI, where a stud with a spring washer on,each side provides an amount of friction just sufficient to resist the pull of a spring (N),but not to resist application pressure.

A slot at F determines the movement of the shoe, which is shown at 51. Should the outward movement, caused by wear of the facing, exceed the distance indicated at SI, a movement outward occurs in the lever (MI), thus resetting the abutment against which the shoe rests. The scheme is not in accordance with modern ideas, which demand a re-setting between the expander earn and the shoe. This patent, which is numbered 386,960. is now void. '

A Daimler-Benz Chassis Design.

THE patent of Daimler-Benz A.G., of Stuttgart-Unterturkheim, C ermany, numbered 386,816, relates to that class of vehicle in which a central tube forms the main part of the frame, and it is described as being particularly useful in the ease of small vehicles where driven swinging axles are employed.

The engine is described as being at the rear of the vehicle, behind the driving axle shown. The driver am pears to be seated somewhere forward, as a rod (21) is-described as leading to a pedall for operating the clutch. The worm iS hollow, the shaft passing through it to operate the layshaft, the sliding gears being splined to the hollow shaft.

Tags

Organisations: SI

comments powered by Disqus