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A Snow-clearing Vehicle P ATENT No. 682,687, deals with the subject
Page 58
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of snow clearance, and shows a vehicle designed expressly for this purpose. The patentee is P. Gledhill, New Dean House, ' Stainland, Halifax.
The drawing shows the general layout of the vehicle, which comprises a high-powered tractor drawing a trailer to receive the picked-up snow. A long sloping channel-shaped chute (1) covers the tractor, but leaves a window clear for the driver.
The nose of the chute is provided with a hinged flap (2) which can be raised to the vertical by means of a hydraulic cylinder (3). The object Of this is to act as a buffer should the vehicle start to slide down a hill.
As the vehicle is driven forward, the snow is scooped up into the chute and forced up the ramp to be deposited in the trailer. An arrow-head obstruction (4) divides the snow into two streams • so as to leave the driver's window clear.
The vehicle tarries a powerful electric generator to supply current for heaters (5) under the vehicle. The aim is to melt the thin snow film remaining should it be necessary to enable the wheels to reach the hard road. Electric heaters may also be fitted to the trailer to' melt the load.
As an alternative to wheels, endless tracks may be used, and the trailer may be made in the form of a sledge. Transverse slats (6) on the trailer may be driven like a conveyor to even out the depth of the load. A PILLAR MEMBER FOR BUS BODIES THE uprights of a bus body not only ' support the roof, but also form a point of attachment for the panelling, both inside and out. A structural member of this nature forms the subject of patent No. 680,920, from N. Massey, A. Tyldesley and Massey Brothers (Pemberton), Ltd., all of Enfield Street, Wigan.
The main member is a box-girder (1) which may be cast, extruded or fabricated from sheet as shown. The outer channel receives a wood packing strip to which the outer panelling (2) is fixed ,lay screws and a moulding (3). Screws (4) pass through this channel to hold the wood, and possibly to unite the assembly if need be. The side channels receive and locate wooden beams (5) the inner panelling (6) being fixed to the metal flanges. Bolts or rivets
(7) perform the dual 678.887 function of fixing both the inner panels and the wooden beams.
NEW IDEAS IN REFUSE BODIES
A REFUSE COLEt LECTING body is shown in patent No. 682,143. by J. Feidert. .24, Cote d'Eich, Luxembourg. Its chief point is the way in which it can be manipulated into different positions for the operations of loading, packing and discharging.
The drawings show the three positions in
outline. During loading, the bins are tipped into opening 1 and the refuse first falls into the rear compartment (2). When this has been filled, the body is swung about pivot 3 through 90 degrees, so that the refuse can fall from the loading compartment into the main space, being assisted by a movable flap (4), which always hangs vertically. This can be repeatedmany. times until the body is full. The third drawing shows the discharging position; in this case the tipping pivot has been withdrawn from its socket, and a new pivot is brought into play at point 5.
When moved into the position shown, the whole of the rear wall hangs from a pivot (6), leaving the body open for a complete discharge.
• AN INJECTION PUMP WITH A ROTARY DISTRIBUTOR A MULTI-CYLINDER injection r—I pump having only a single plunger, is the subject of patent No. 678,887, which comes from C.A.V., Ltd., Warple Way, London, W.3. The fuel charges are directed to the various pipe-lines by a rotary distributor,
The single plunger works on wellknown principles, its
ioutput being varied by a helical cut-off edge. The driving spindle carries, in addition to cam 1, a bevel gear (2) which drives a vertical
shaft leading to gears 3.
The larger of these two gears drives a rotary valve (4) provided with a longitudinal groove (5) which successively lines up with ports (6) as it revolves. The number of ports corresponds with the number of engine cylinders. The valve not only revolves, but reciprocates as well, being lifted off its conical seat (7) by each fuel charge, and returned by a spring. '
This action sets up a slight suction on . the downstroke, and prevents dribble from the injectors. It is proposed to use the driving gears at the top of the Unit as a fuel pump.
• LUBRICATION FROM COLD DATENT No. 684,436, from Daimler". Benz A.G., Stuttgart-Untertilrkheim, Germany, shows a method of supply-, ing extra oil to the pistons of an engine when starting from cold. Most lubricating systems have a relief valve to prevent 'excessive pressure from cold oil, and this scheme uses such a valve. Instead of releasing the oil, however-, it feeds it directly to cylinder ports, giving the desired extra lubrication. As the oil thins, the pressure drops and normal lubrication is restored.