A Body Equipped with a Rotor
Page 62
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TEE form of body described in patent No. 385,744, by Marriott Brentnall and Co., Ltd., 10, Macklin Street, Derby, is one that should prove of use to many trades where a variety of goods has to be carried, and where a quick selection is essential. It should also be of value to travellers who have to display their samples.
As will be seen from the illustration, the body contains a rotatable portion in which divisions may be formed to suit the class of goods to be carried. The remainder of the body can be fitted in the usual manner, or in some cases two rotatable portions can be carried.
Another feature of the design is that the driver can, without leaving his seat, turn the body around until he can select what he requires for delivery, thus saving much time.
A Coupling Device for Trailers.
pATENT No. 385,597, by the Societe Anonyroe des Trains Chenard and Walcker, F.A.R., 40, Rue du Moulin de la TOUT, Gennevilliers, France, relates to a device by means of which part of the weight of the trailer can be brought to bear on the rear portion of the tractor to increase the adherence of its driving wheels with the ground.
An upright post is firmly mounted at the rear of the tractor, and is supported by a tie at the top (not shown) to render it capable of pulling the trailer. The post is slotted to accommodate extensions from a nut, on which the fork of the drawbar rests so that it can be raised by means of the screw and worm wheel when required.
The operatiqn of the screw may be by hand or by an electric motor ; both the worm and the screw are of the nonreversible type, so that the weight of the trailer cannot cause the nut to release its load through vibration. This application has become void.
A Universal Joint.
A UNIVERSAL joint is described in
patent No. 385,778, by P. Porsche, a Czechoslovakian, 24, Kronenstrasse, Stuttgart, Germany, in• which sliding and rolling movements are both employed.
The shaft (9) is that which leads from the gearbox, and this is supported by the ball bearing shown, shaft 1 being that which leads to the rear axle. The Latter shaft is provided with a spherical flange (2), which is secured by a plate n48 .(5). A cylindrical portion (3) is formed integral with shaft 1, and is embraced by the sliding portion (4), in which it is allowed a limited amount of rocking movement.
Shaft 9 carries a member (6), which is provided with a groove, in which 4 can slide to allow of relative angular movement of the two shafts, as shown in the two sectional views. The member 6 is shown as a solid piece, with a groove for the member 4 to slide in, but the groove does not appear to extend right through. We know of no machine that will produce such a groove, but it would appear practicable to employ some other method of construction.
A Steering Bogie for Trailers.
A NAME which has been referred to
many times in connection with trailers, H. W. Jonkhoff, Bergerufer, 2a, Dusseldorf, Germany, appears in patent No. 385,758, describing a fourwheeled bogie in which the front wheels not only slew with the drawbar, but actually steer so that all axial lines converge to the centre around which the : trailer is turning.
The bogie is described as of the nonrocking type, the yield to uneven ground being accommodated by the means employed for mounting the wheels, which are carried by levers (9), these being supported by the springs beneath them. The usual turntable is replaced by rollers (5) and sliding bars with centralizing springs on them. The levers (9) 'hinge about pins, as indicated on the near side, in the accompanying plan view of the bogie, which also shows how the wheels are independently pivoted.
'Unfortunately, the specification gives no details that enable us to describe the means employed for steering the front wheels, nor does it make clear the actual means employed for moving the crossmember, for, as shown, it is not at right angles with the drawbar.
Steering Gear for Both Ends of Trailers.
IN patent No. 385,275 appears the name of Fiat Socleta Anonima, of Turin. It relates to the steering of both the front and rear wheels of trailers, especially those that have to travel at high speeds and have to form part of a train of trailers.
Both axles are mounted on central pivots, which are operated by cams controlled by the drawbar. The axles are connected by linkage, which can be adjusted to give to the axles the desired angles for steering, and can be so arranged that reversing can be carried on with greater ease. This patent has become void.