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Handling of Containers

15th November 1957
Page 72
Page 72, 15th November 1957 — Handling of Containers
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Which of the following most accurately describes the problem?

ASCHEME in which a load container can be onor off-loaded single handed forms the subject of patent No. 783,130. The scheme requires the use of a tipping vehicle. (E. Taylor, Millgate Joinery Works, Friockheim, Angus.)

To unload a container, the body is first tipped to a slight angle and pairs of pins (1 and 2) are made to slide outwards from the body. Next, stands (3 and 4) are placed upon these pins and hang from them.

The tipping body is then lowered back to the horizontal, bringing the rear stands to the ground, so that the container pivots about the rear pair of pins and finally settles down on all four, leaving sufficient clearance underneath for the vehicle to be driven away.

When travelling, the container is held down on the vehicle by four lugs (5) which engage with the floor of the vehicle.

A PETROL-INJECTION PUMP I—I A PUMP for metering and injecting

light fuel is described in patent No. 783,406. It is of the single-plunger type, distribution being achieved by rotating the plunger. (Robert Bosch G.m.b.H., 4 Breitscheidstrasse, Stuttgart W., Germany.) The spindle drives a collar (1) provided with a four-wave cam groove (2). This, in conjunction with fixed rollers (3), causes the plunger (4) to reciprocate four times while it revolves once. The plunger discharge groove is aligned in succession with the four outlets, one of which is shown at 5.

Quantitative regulation is given by controlling the working of a central valve (6) which permits pumping to occur only when it is closed. It is spring-loaded into the closed position, but is opened when a cross-pin (7) strikes the bottom of a control collar (8). The collar is rotated by the usual rack-and-pinion mechanism, but its motion is also slightly axial because it is guided by pins (9) engaging in helical grooves.

POWER STEERING IMPROVEMENTS DATENT No. 783,467 comes from S. Reis, 63 via Mauro Macchi, Milan, Italy, and shows a design for a power, assisted steering system. The chief point is that the hydraulic circuit is arranged

so that the liquid is not throttled by narrow passages, thus eliminating heating effects.

EXTRA SPRINGING IN AMBULANCES

PATENT No. 783,356 refers to ambulances and deals with the provision of an extra springing system for the frames that carry the stretchers, the object being to give the patient the smoothest possible ride. (The Austin _Motor Co., Ltd., J. Stanfield and H. Wall, all of Longbridge Works, Birmingham.)

The drawing shows the frame (1) upon which the stretcher is carried. The frame is supported by swinging arms (2) which are torsionally pivoted on rubber bushes in floor _brackets (3), similar arrangements being used at the other end (4). The weight of the patient stresses the rubber bushes, and oscillations are damped by shock-absorbers (5).

Front and rear arms are connected by link 6. giving a parallel movement. A screwjack (7) abuts a central arm (8) and can be used for raising or lowering the ) frame.

A somewhat similar linkage is used at right-angles as shown at 9. This deals with sideways forces and tends to keep the patient level.

AIR-COOLED CYLINDERS

NVHEN air cooling is employed on an engine, it is important to ensure

hat the air flow is not impeded by constructional members and that the finning is not interrupted by securing flanges. In the case of a detachable cylinder head, the bolting flange can form a serious break in the finning at the hottest part of the cylinder, and a bolting scheme shown in patent No. 783,562 is

aimed at eliminating this. (KIocknerHumboldt-Deutz A.G., Deutz-Mulheimerstrasse 1491155 Koln-Deutz, Germany.)

The cylinder is secured to the crank case by screws (1) fitted into tapped holes. The flange on the cylinder is cut away at points around its periphery to form recesses for the heads of screws (2) by which the cylinder-head is attached to the cylinder. Thus, the finning around the hot portion is uninterrupted by a thick flange, the only extra metal being the small bosses (3) tq receive the screw ends,

A DUAL-PURPOSE VEHICLE

CCORDING to patent No. 783,367 fl(Physique et Mecanique S.A., Grand Pont 2, Lausanne, Switzerland), although endless tracks are excellent for traversing rough country, they are of real value for only about 5-10 per cent. of the life of the vehicle, and constitute a hindrance for the rest of the time. This is because of their limitations in speed, and.., high rate of wear. The patent discloses a design for a vehicle having both tracks and wheels, either of which can be put into action from the driver's seat.

The drawing shows the road wheels at 1 in their retracted position. They are pivoted about axles (2) and can be moved by power into their effective position (3), an action which simultaneously lifts the tracks from the ground.The axles are not only pivots, but slide as well, enabling the raised wheels to be moved inboard :Alen out of use.

When running on wheels the vehicle is steered by those at the front.


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