AT THE HEART OF THE ROAD TRANSPORT INDUSTRY.

Call our Sales Team on 0208 912 2120

Combining

20th January 1933
Page 62
Page 62, 20th January 1933 — Combining
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?

Ramp and Floor ABODY in which the rear portion can be let down to form a ramp which can be used for animals to walk up is described in patent No. 384,810, by F. L. Miles, 117, High Street, Cheltenham. To reduce the angle of the ramp, part of the floor (3) is hinged to the main flooring so that it can follow the angle of the rear portion of the body, which is hinged at a point 'below the floor level.

A second portion (5) is hinged to the rear of the body and can slide on 3. It is provided with a roller at 8, which rests on the sloping portion (9).

The specification points out that such a body may be useful for carrying other loads besides animals, as it makes loading easier by carrying with it its own ramp.

A Trolley for Salvaging Vehicles.

IN patent No. 382,767, by A. E. Lake, 113, Dunmow Road, Braintree, is shown a form of trolley which is particularly designed for the salving of brokendown vehicles.

The features of the design would appear to be a frame which is low ; so that the vehicle to be towed, either by its front or rear axle shall not require to be lifted very high; a cross-beam which is pivoted in its centre, so that it can remain constant with the vehicle it is supporting, and a means whereby the frame can be lowered to receive the disabled vehicle.

The front axle is pivoted in its centre in the usual manner and carries with it a long telescopic tubular bar for attaching to a tractor. The cross-beam is mounted on a disc of large diameter, and can carry with it any means for supporting the vehicle to be rescued.

The rear axle is attached to the frame by bolts of considerable length, so that, by unscrewing the nuts, the frame at its rear can be lowered until it rests on the ground, when, by tightening the nuts, it can be raised. The maximum effective lift of the cross-beam can be utilized by means of suitable packings.

B48

An Hydraulic Clutch and Reverse Gear.

A NOVEL form of hydraulic clutch is described in patent No. 384,100, by J. M. Beaumont, Dogleg Villa, Fenny Bridge, near Huddersfield. The

driving shaft (A) carries a member (B) which is .provided with vanes, as shown in the lower view. A central member (F) carries vanes sloping in the same direction, and forms part of the outer casing. A driven member (D) has vanes sloped in the reverse direction.

While B is the driver, D is driven and 17 is free on both shafts. A brake is provided on F so that the central vanes may be held from rotation.

The operation of the device is described as follows :—The driving shaft rotates the vanes, which cause a movement of the fluid through the central member to the vanes of the driven shaft. This is said to cause rotation of the last named, but should the brake be applied to the central member the rotation of the driven member is said to be stopped or reversed according to the degree of application.

A Cam-operated Change-speed Gear.

PATENT No. 384,658, by C. E.' Hen nod, Areuse, Canton de NeAucliatel, Switzerland, describes a changespeed gear in which a rotatable shaft provided with cams causes the various changes of speed by operating sliding members on the driven shaft. A clutching effect is produced by means of an epicyclic gear in the flywheel, which also enables a variety of speeds to be obtained.

Two speeds are afforded by the type of gear shown, in which an eccentrically, mounted ring (14), provided_ with

internal and external teeth, can be. allowedto operate between the central' shaft (6) and an outer member (15), or can be locked so that all parts rotate together. The lowest ratio and the reverse gear are obtained by the epicyclic gear shown in the drawing below on the right.

The specification points out that severer different ratios can be obtained in the reverse, which does not appear to be a very useful feature, except possibly in special circumstances ; the arrangement seems to us to be complicated and expensive, and to have the disadvantage that the various gear ratios are not selective, it being necessary to go through intermediate .gears when passing from a law gear to. a higher One or vice versa.

Tags


comments powered by Disqus