New Features in Tipping gear Design
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THE visitor to Olympia cannot help but be. impressed by the
• number of tipping gears of various types that is to be seen on many stands. Some makers of these useful mechanisms are exhibiting examples on their own stands, whilst, in other cases, proprietary makes of gear are to be seen only on the stands of the vehicle manufacturers, which incorporate them in their standard machines.
Notable among thok manufacturers of tipping gears which are exhibiting on their own stands is Bromilow and Edwards, Ltd., Foundry Street, Bolton (Stand 27). This concern has on view live vehicles equipped with B. and E. tipping gear. Attracting the greatest attention, perhaps, is the Gigantip model, the outstanding feature of 11 hich is that the body may be raised srveral feet before the front end is lifted to discharge the load.
Normally, the body sub-frame is held down by quick-release clamps and the body is tipped in the normal way. When the clamps are released, however, the 'first movement of the rams lifts the body ' on long arms before tipping begins. The Gigantip has as its basis a Leyland chassis.
Four other examples of the B. and E.
gear suitable either for three-way or end-tipping and designed for various loads are to be seen on this stand, and the concern has recently designed an improved pump for its hydraulic gears. Of the two-piston type, this pump has an eccentric drive, and gives a pressure of 2,500 lb. per sq. in. at 800-q00 r.p.m.
Befote leaving the products of this concern, mention should be made of an A.E.C. Mammoth Major, equipped with a light alloy 14-cubic-yd. 'threeway tipping body, which is to he seen on the stand (124) of the Duraniin Engi the Eagle Engineering Co., Ltd., Warwick. A trailer attached to a Scammell 6-ton mechanical-horse unit has an underslung hydraulic gear. Another hydraulic tipper is shown coupled to a Thornycroft tractor, the gear being of the underslung telescopic single-ram type. which enables the load to be tipped through an angle of 40 degrees.
A recent addition to the manufacturers of tipping gears in this country is Anthony Hoists, Ltd., Minerva Road, London, N.W.10, and on Stand 139 this concern has on view two vehicles equipped with its gear, together with a sectioned unit showing the interior me chanism. Particular features of the gear are the pipeless construe tion and the incorporation of device to dislodge the load the fully tipped position.
On Stand 133 of Gottfried Lindner A.G. Ammendorf, Schachstrasse, 18, an interesting four-wheeled trailer of tubular-backbone construction is to be seen. The body is of the end-tipping type, the Meiller hydraulic gear being incorporated in the tubular backbone. This snake is popular in Germany and is worthy of close inspection.
The Weston tipping gear, a product of Sunsaloon Bodies, Ltd., Weston ,Lane, Birmingham, is the standard unit on Bedford. Morris-Commercial and Dodge vehicles and may be inspected on the stands of these makers. At the same time the Sunsaloon concern has on view on Stand 281 in the gallery a sectioned example of the gear showing the main features. Special points to be noted are the ingenious locking device which prevents the body lifting at the front, and a safety feature that guards against overtipping by giving a delayed action to the ram under such conditions.
Following the success of its handoperated tipping gear, Clayton DcWandre, Ltd., Titanic Works, Lincoln, recently placed upon the market an hydraulically operated gear for 3 and 4-ton chassis. Whilst this concern does not feature the gear on its Own stand, examples are available for inspection on the stands of Wilsons (Kingston), Ltd. (28), and Spurling Motor Bodies, Ltd. (31). A feature of the design is the compactness of the mechanism so that it is possible to maintain a low-loading line, and no space is wasted between the body and the cab. The pump is of the three-plunger type and is sturdily built, whilst a two-point lift is provided.
Several types of tipping gear are to be seen on Stand 63, occupied by the Spenborough Engineering Co., Ltd,, Union Road, Heckrnondwike, An hydraulic three-way gear is incorporated in a Dennis 4-tonner, a Commer 4-5-tonner is equipped with the con
B24 the telescopic pattern may be inspected on a Guy Vixen forwardcontrol chassis.
An example of the Rock three-way hydraulic gear, manufactured by the Truck and Tractor Appliance Co. (Manchester), Ltd., is displayed on Stand 45. The outfit is shown with an all-steel body for use on short-wheelbase chassis of 2-3-ton capacity.
The well-known Wood gear is on view in the form of a neat tower wagon having as its basis a Leyland chassis. This vehicle is featured on Stand 166 in the Municipal Section. Having a van •. body with a collapsible elevating platform above it, the elevating gear ispositively driven from the gearbox and a foolproof automatic stop is incorporated. The name and address of the maker are the -Wood Hydraulic Hoist Co., Ltd., •1-3, Brixton Road, London, S.W.9.
A power-operated. screw tipping gear, the patent auxiliarygearbox of which can be fitted to any existing endoperated screw gear, is featured by William E. Cary, Ltd., Red Bank, Manchester, 4, on Stand 228 in the gallery.