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The Latest in Service Equipment

15th December 1950
Page 47
Page 48
Page 47, 15th December 1950 — The Latest in Service Equipment
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ANI ONG the latest items of transport service equipment are a paant drier, torque wrenches, washing plant, breakdown cranes and a tyre-handling device. The paint drier is of the portable infra-red type and has been introduced by the General Electric Co.. Ltd. It can be supplied at £30 with four 250-watt lamps which can dry a small area of cellulose paint an 10 minutes, lhe unit can also be supplied with two la'rnps. Air Used for cooling tho bulbs is blown through the reflect(); and disperses paint vapours,

New pre-set torque wrenches with square drives of 9/32 in., tn. and 1 in. arc being made by Jenks Bros., Ltd., Wolverhampton. Prices range from El 6s. to £1 18s. When the pre-set load is reached, a small plunger in the handle clicks and taps the operator's hand.

A three-ram washing plant with a delivery rate of 10 g.p.m. at 300-350 lb. per sq. in. pressure, has been introduced by Williams and James (Engineers), Ltd., Gloucester. The specification includes central draining points, quickrelease delivery points and a largediameter pressure gauge. Plungers and glands are designed to prevent scoring. The plungers are driven by geared eccentrics running in an oil bath from which all other working parts are lubricated. Standard equip me n t includes one gun with 25 ft of hose.

The Baby Southwell is a new addition to the range of washing machines marketed by Kerry's (Great Britain), Ltd-., Warton Road, London, E15. Quiet operation is an attractive fettkure of this unit and is obtained by the use of worm drive from motor to, pump.

An American vehicle-washing plant that has been widely adopted by transport companies in the U.S.A. is now being made available in this country by the American Autowash Corporation, Ltd., la, Newman Street, Oxford Street, London, W.1.

The Washmobile plant, as it is known, consists of a rectangular arched assembly which runs on guides on the floor. Jets are placed on the pillars and the top cross-member to direct water or detergent on to a vehicle placed so that the assembly may be moved backwards and forwards over it to spray its whole length.

Ordinary water hoses for the washing. of wheels and mudguards, and air hoses for intenior cleaning, are also provided. The use of the Washmobile is thorough, quick and convenient, and differentsized models can be supplied.

A new centreless crankshaft-grinding machine, designed and built by Cuthbert Machine Tools, Ltd., Guildford, has been developed to improve the finish on the journals and at the same time retain a maximum output. Instead of revolving on orthodox centres, the crankshaft is supported on steadies comprising two jaws, set at a pre-determined angle, and an adjustable finger which forms the third element to retain the shaft in position.

• Lead-screw Control The jaws form part of a steel blade which is adjustable along the bisector of the angle formed by the fixed jaws. Movement of the blade is controlled by a lead screw which works in conjunction with a scale on the side of the steady and a vernier dial on the hand wheel, which also turns the lead screw. These scales are used to position the shaft for parallel grinding on a journal of any given diameter.

Experience in the operation of this machine has shown that the mathematical error of setting up the shaft on worn journals is, in most cases, less than the limit of th2 personal element on the conventional machine.

The work head does a joint task of revolving the shaft and locating it axially on the machine. This relieves the steadies of side load and has less tendency to cause the shaft to rise but of either steady.

With centreless grinding, the position of the crankshaft on the machine alters as the stock is ground away. Therefore, the drive mechanism must be flexible to prevent alteration of position. With the Cuthbert grinder, the drive head is operated by a motor through a pair of three-step pulleys giving three speeds of rotation.

The driven pulley is connected

through a universally jointed shaft to a flange carrying a pair of V jaws. This flange is mounted on a slide inside two flat plates, which are carried in the form of a gimbal in the main casting. The flange can, therefore, be rotated in any position between the two fixed. plates, but has no endwise movement. It is claimed that an average operator of the Cuthbert machine can grind an assortment of shafts throughout the day at an average time of 10 minutes a journal. A 3-ton breakdown crane of new design is being offered by the Kerry company, It is of the twin-pulley and twin-drum type. A feature of this model is the use of control handles which allow an outside wind from both sides of the salvage vehicle from ground level.

Welded Jack-crane The Kerry-Wickham 20-cwt. jib and jack-crane is another of the concern's latest lines. It has a range of lifts from 5 ft. 6 ins. high at 4 ft. 2 ins, radius to 7 ft. 6 ins. at a 3-ft. radius. The unit is of welded construction. Cimex, Ltd., 68, Victoria Street, London, S.W.1, is distributor for the new Fraser-Tuson squeegee. This is made of aluminium and costs £1 12s. with a 20-in, blade, or £1 17s. 6d, with a 30-in. blade. A device which simplifies the changing of heavy wheels has been introduced by Joseph Bradbury and Sons, Ltd., Braintree. It consists of a fork-like frame on which are mounted two long rollers. in operation, the wheel is jacked off the ground and the changer is wheeled beneath it. The nuts having been removed, the wheel can be easily withdrawn by raising the extension handle of the wheel changer. When replacing the wheel it is easy to locate the studs, as it can be turned on the rollers. The weight of the device is 161 lb.

Easy Tyre Removal Harvey Frost and Co., Ltd., Bishop's Stortford, has produced a new separator for application to tractor tyres. The tapered toe vf the casting which houses the main screw is placed at the wall of the cover, with the toe as near as pos sible to the inside edge of the wheel rim. The screw is then turned to force the cover away from the rim. The Pyrobit fume extractor is an ingenious device made by the Aerti Electric Tool Manufacturing Co., Ltd.. 123, Hyde Road, Ardwick, Manchester, 12, to prevent fumes from such work as welding and brazing, rising into an operative's face. The extractor consists of a funnel, containing an electric lamp; an allied purpose of the device being illumina

tion. Because the heat that rises from the lamp is emitted from the top of the

funnel, air is drawn in from the bottom, the draught effect caused being sufficient to extract fumes from work over which the device is poised. The Pyrobit costs £14 with a heavygauge stainless-steel funnel, or £9 10s. with an aluminium funnel.

A line-marker, primarily meant for al4

use on roads, but also applicable to large garages and workshops, has been introduced from the U.S.A. and is obtainable in this country from C. H. Johnson (Machinery), Ltd., Adswood

Road, Stockport.

The Mark-Rite, as it is known, is simply a 34-in, tube about 4 ft. long with flow controls at the top and a set of wheels at the bottom. Paint contained in the tube can be allowed to flow from the nozzle at the bottom, and as the marker is moved along, a brush fitted behind the nozzle spreads the paint out into a line, the breadth of which can be varied according to the size of brush installed. To enable them to charge a large number of batteries all at the same time, Messrs. Frew and Co., Perth, have recently purchased a special unit from the Edison Swan Electric Co.. Ltd., 155, Charing Cross Road, London, W.C.2. This unit is for use on a threephase A.C. supply of 440 volts and has 14 output circuits of various voltages and amperages. All circuits are independent and rectification is effected by selenium metal units.

Philips Electrical, Ltd., Century

House, Shaftesbury Avenue, London. W.C.2, has produced a new charger for batteries of 12 volts, 6 volts and 2 volts. This works on A.C. mains and has a charging rate of about 1.5 amps. A transformer automatically adjusts the rate to suit the condition of the battery, and this rate is shown on an ammeter. The consumption on full load is 40 watts. The unit is handy in size and costs £4 15s.

Brown Brothers, Ltd., Great Eastern Street, London, E,C.2, has introduced a useful-sized bench bin. With a nest of 12 dished bins it is suitable for a wide variety of stock items, such as screws. bolts, pins and parts of all kinds. The price is 30s.

Designed to provide air completely free from oil, smoke or odours, a new diaphragm-type compressor has been produced by the Hymatic Engineering Co., Ltd., Redditch. It can be uscd for spray-painting. Two models are made. The DP6 consists of the compressor mounted on a 1/6 h.p. motor, whilst the DP7 has in addition an air receiver fitted with a safety valve. The units are portable and compact.


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