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A Refuse-collection Body

8th February 1957
Page 66
Page 66, 8th February 1957 — A Refuse-collection Body
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Which of the following most accurately describes the problem?

AREFUSE COLLECTION body fitted with a device for compressing the load, forms the subject Of patent No. 763.129. (L. Lelaurin, 104 Fountain Street, San Antonio, Texas, U.S.A.) A slidable compressor plate (1) .lies normally at the front endof the body. When the body is . partly filled with refuse, the Plate can be moved to compress the contents against the rear door. The plate is then brought forward again, leaving a clear space for further loading.

The plate is moved by chains (2) and sprockets, driven from the engine through a: reduction gear and a fluid coupling (3). The coupling is intentionally inefficient so that when the refuse has been fully compressed, the slip of the coupling allows the plate to stand still. It is thus impossible to overcompress the load and 'damage the body.

A "CLEAN" PISTON PA'FENT No. 763,392 (Hercules 1 Motors Corp., Canton, Ohio, U.S.A.), defines a clean piston as one which minimizes or prevents the deposition of foreign matter during running, and proceeds to describe such a piston intended for use with oil engines.

The piston shown is used in conjunction with a spherical combustionchamber located entirely in the side of the cylinder. It communicates with the cylinder space via a narrow passage.

That part of the piston adjacent tne passage is cut away slightly as indicated.

The cut-away is shallow, at point 1 and rather deeper at the lower point (2). The lower portion thus forms a pocket and the upper part is a passageway leading, to it. The initial stages of combustion are open to the pocket and any

impurities arc said to be mainly deposited therein.

It will be noticed that the upper two ring-grooves 13) are tapered in section; this forms no part Of the invention, TWIN-AXLE SHACKLE PINS

PATENT No. 762,729 (I. Naylor and Atkinson Vehicles, Ltd., Winery -Lane, Walton-le-Dale, Preston), deals with the suspension arrangements of twin axles and the object of the design is to enable such axles Lb be run over rough ground without imparting twist

ing stresses to the springs and so over-stressing the shackle pins.

In the layout illustrated, the eyes (I) of the leaf springs are shackled to a central balance beam (2) pivoted on the frame on roller bearings. Normally, the shackle-pin (3) would be cylindrical, but in this case it is formed with a partspherical centre portion which mates with a corresponding housing in the beam end. The housing may be made of phosphor bronze, or a non-metallic material such as Nylastic.

The patent covers also the use of a similar spherical fitment at the springeye end (4) of the shackle.

COMBINED CARBURETTER-GOVERNOR

and levers between a governor and avoid heavy transmission, links

the throttle is the main object of a carburetter shown in patent No. 763,382. (Solex, 190 Avenue de Neuilly, Neuilly s/Scine, France.) Moreover, the absence of any appreciable friction means that a very light governor may be employed.

The drive is taken from the engine by a light flexible cable (1). This rotates a 'centrifugal governor (2) of conventional pattern. The sliding collar of the governor is coupled directly to the throttle by a light link (3), and the throttle spindle • is mounted on needle rollers (4). For lubrication, oil-rich mist from the crankcase is fed in via pipe 5. To draw this mist through, a slight suction leak (6) is provided in the main tube.

A lost-motion connection is made with the accelerator pedal so that the driver can slow the engine but cannot override the maximum governed speed.

CUTTING OFT PETROL WITH • IGNITION

PATENT No. 764,055 discloses an electrically' operated petrol valve that stops the supply to the carburetter jets the moment the ignition is switched off. It prevents the engine drawing in unburnt .fuel during its last few revolutions. (Daimler Benz A.G., -Stuttgart, Unterturkheim, Germany.)

A NON-SKID TYRE; •

A NEW Dunlop tyre, 'covered by patent No /64,832, is Provided with numerous monoffiaments of Terylime projecting, radially frOm the tread; these are Said to impart valuable nonskid properties to the tyre. (Dunlop Rubber Co., Ltd., 1 Albany Street, London, N.W.1.)

ADJUSTABLE PLATFORM BODY

A VEHICLE in which the loadri.• carrying platform cart be lowered almost to ground level, forms the subject of patent No. 763,498. (A. Ruthmann, Harwick 88, Gescher-Westfalia, Germany.) It is necessary to use frontwheel drive and employ independent suspension for the rear wheels, because the whole of the load space .inust be U-shaped in plan, open towards the rear.

The drawing shows the p/atfonn (1) at ground level, in which position it is possible to run a wheeled trolley (2), directly on. As Ahe platform can be raised to any laVel it is equally suited to ramp loading.

Four steel cables, one in each of the tubular uprights (3), comprise the lifting gear. The cables are operated by a common hydraulic ram powered by the engine of the vehicle.


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