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TIPPING GEARS
Page 114
Page 115
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and other Load-handling Devices
A Review of Prominent Proprietary Makes of Tipping Gear, With Useful Notes on Other Kinds of Load-handling
Equipment
THE loads carried by goods vehicles may be classified generally under two heads, viz., those of a composite nature carried in bulk, and those that are handled as complete units. For the handling of the common carrier's load, comprising parcels and cases of different sizes, the problem of loading and unloading is necessarily a difficult one, and considerable manual labour has, even in these days, to be resorted to. When, however, we consider loads that are handled in bulk, we are able to turn to several makers of first-class tipping gear, which, although unable to assist in the loading problem, can greatly expedite discharge.
Power-operated tipping gears are of two main types, hydraulic and mechanical. Dealing first with hydraulic gears, the name of Bromilow and Edwards, Ltd., has a position of some pre-eminence, standing, as it does, for a well-made outfit employing gearbox drive for a plunger-type oil pump and either single or multiple telescopic rams.
The Eagle Engineering Co., Ltd., is another producer of hydraulic gear, and has a specially good name for trailer equipment in which, generally speaking, the oil reservoir and pump are mounted
c5fi
on the tractor with flexible connection to the ram on the trailer unit. In one type made by this concern, the necessary gearing and relief from distortion are obtained by the use of cables which pass oVer pulleys on a cross-head.
The gear made by the Hydraulic Hoist Co., Ltd., is of a different design, incorporating a horizontal cylinder longitudinally placed beneath the body frame, with a piston-rod cross-head
which is forced between rails on, the chassis frame and cam brackets under the body. The shape of these cams provides a lower leverage ratio for the early stages of the lift.
A particularly. sound telescopic-ram type of tipper, in which universal jointing and a good distribution of the stress are prominent features, is the Wirz gear marketed in this country by Lawson Pigott Motors, and another make employing a single telescopic ram of large diameter, in various models fot end or three-way tipping, is the St. Pant an American gear sold here by The Transport Equipment Co.
A good example of the mechanical power-operated gear is that produced by Edwards Bros., of Bolton. This makes use of two pivoted quadrants connected to the body frame by a pair of vertical rods. The quadrants are raised by a cable wound on a witidli driven by suitable gearing from the gearbox. The quadrant system is also available arranged for manual operation. In converse, several well-known hand operated gears are suitable for power drive. A reputable three-way tipper is the Gibson, made by J. Brockhouse and td.
Co.,Xmongst the hand-operated tipping gears, the Spenborough provides a popular and inexpensive three-way tipping outfit, standard models being available for loads up to six tons. Spur gearing is arranged to a pair of threaded bevel wheels, these forcing upward two screws which are connected at the top by a bridge, this incorporating two rollers which bear against an arched track in the body underframe.
In the case of the Crawford gear, available for loads up to eight tons, two quadrant racks are pivoted beneath the forward part of the body frame and raised by spur gears -with reduction gearing which is enclosed.
There are many makes of ordinary screw-type tipping gear, one of the best known being the Eagle, of which several kinds are available for loads from 30-cwt. upward. The connections for this gear are designed to permit no binding, no matter how distorted the chassis may be at the time of tipping. Spherical joints are incorporated, And the gearing is enclosed.
Several single and double screw types are made by that important concern, R. Disturnal and Co., and a gear of an efficient kind employing the lazy-tongs principle the Quikko, Marketed by J. W. Piekavant and Co., Ltd. Screw-type gears of orthodox design and good quality are the Wearing, Walter's, Edwards, Noel Paton, Leason, Jagger and jentrings mñken: •
Body-traverse gear is marketed by the Eagle concern, the body being mounted by rollers 'on the chassis frame and propelled sideways in either direction . by hovizontal screws until it tips. This gear is well suited to light trailers, etc. Tithe and Bell, Ltd., makes an end-tipping gravity-operated variety, in which the body is traversed rearward, the effort required being very little and the body being kept tinder complete control by means of the .horizontal screw.
An ingenious outfit is the Fontaine body, sold here by the Transport Equipment Co. This is slid backwards by a jib. arrangement and stands down upon its tailboard, which is detachable, so as to act as a pallet. It is specially suited for the conveyance of bricks. The pallet is loaded and the body is then lowered over the pile, when the pallet is attached and the entire load drawn aboard.
Another device for loading and unloading heavy articles is the Ragma, sold by Heywood Brothers. It is a hand-winchoperated gear by which the tailboard is lowered to the street level and used as a loading platform, being then raised horizontally with its load. It is made in two models, for raising useful Pay=loacls of 16 cwt. or 30 ._twt.
An inkenious arrangement consisting virtually of an endless-belt conveyor contained in the vehicle floor was recently introduced, and comprises an endless canvas or rubber belt the full width of the body floor, this being supported by rollers at each end and intermediately, the rearmost roller being turned by a handle. It is extremely useful for coal, gravel and similar materials.
When it comes to handling the load.
as a unit, overhead lifting gear of the type made by Herbert Morris, Ltd., is extremely useful. This company produces almost every conceivable kind of overhead gear with either hand or power operation.
It is, in some circumstances, possible to eliminate lifting by rolling the entire body sideways or endways, rollers being fitted either to the chassis and the warehouse floor, or else to the body underframe.
Phec portable loaders; in various forms, made by the . Paterson Hughes Engineering Co., Ltd., are invaluable for loading cer
thin classes of goods. The belt-type conveyor, easily Wheeled about, is suitable for grain, fine coal, sacks, boxes, old bricks, etc., and the company's hand and electric stackers are useful for barrels, heavy eases, etc.
A feature of the belt-type loaders is their steel construction, and, as they are mounted on large-diameter wheels handling on rough ground is facilitated. The carrying belt is of highquality halata., with crossbattens at intervals to prevent loose materials or packages slipping backward. Side plates prevent the material from spreading.
The hand-operated stacker has bevel reduction gearing. It is mameuvred, for exact position, on small wheelS, but large wheels are provided for wheeling it about.
Another important concern making elevating and conveying gear is Spencer (delksham), Ltd. The Spencerdoublearm stacker is made in two weights, and both will pile to a height of 25 ft., in which capacity they greatly aid the unloading of lorries at tall warehouses. Theyhave 5 h.p. motors.
The concerns referred to in the foregoing are :—
Brockhouse and Co., Ltd., Victoria Works, Rill Top, West Bromwich; Brorailow and Edwards, Ltd., Foundry Street, Bolton.
Crawford Tipping Gear Co., 128, Much Park Street, Coventry. R. Distranal and Co., Bridge Works, Wednesbuty, Staffs.
Eagle Engineering Co., Ltd., Eagle Works, Warwick; A. R. Edwards and Co., 1, Drewton Street, Bradford; Edwards Brothers, Springfield Garage Bradford Street. Bolton.
HeywoodBrothers, 15, York Build jugs, London, W.C.2; Hydraulie Hoist Co., Ltd., 182. Lord Street, Southport
Alfred Jagger, 5-8, Green Lane, Wal Belli., J. H. Jennings and Son, Ltd., Sandbach, Cheshire.
Lawson Pigott Motors, 320-2. King Street, London, W.6; Joseph Lea and Sons, Dyche Street, Rochdale Road, Manchester.
Herbert Morris, Ltd., Loughborough.
Paterson Hughes Engineering Co., Ltd., Windsor House, Victoria Street, London, S.W.; Neel Paton, Ltd. 14abor Works, Fernley, Leeds; J. W. Pickavant and Co., Ltd., Quikko Works, Granville Street, Birmingham.
Spenborough Engineering Co., Union Road. Heekmondwike. Yorks; Spencer tMelkshaml, Ltd.. Aldwych House, Allwyeh, London, W.0.2. The Transport Equipment Co., 4, Clement's Inn, London, W.C.2; Tuka and Bell, Ltd., Lichfield.
F. Walters and Co., Albert Street, Rugby; George Wearing, Ltd., Carters Green Works, West Bromwich.