Service Equipment Makers Meet a Dual Need
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By Alan Smith Products of Higher Quality and Wider Application Made to Meet the Engineer's Increasingly Complex Task
mANUFACTURERS of service equipment are faced with the twofold problem of meeting the mairEenance needs created by the latest vehicle designs and of improving the efficiency of established workshop equipment. Al this year's Commercial 'Motor Show, the results of their efforts have been apparent.
.1 complete unit for the servicing of engine valves and the maintenance of oil-engine injection systems has been introduced by the Merlin Engineering Co., Ltd., Salterhebble, Halifax. It is known as the Service Master, and provision has been made to grind seatings between the angles of 58 degrees and 65 degrees. _The machine, which is built to fine precision limits, is priced at £195. Special fittings to deal with lesserknown Continental or American equipment can be supplied by arrangement.
Incorporating a number of improvements, the Cuthbert centreless crankshaft grinder is an entirely new British design. The crankshaft is supported by steadies upon which the appropriate journals lie. The steadies comprise two jaws, tipped with tungsten-carbide steel and set at a predetermined angle, and of an adjustable finger which retains the circumference of the journal against the fixed jaws.
The jaws are part of a steel blade adjustable along the bisector of the angle formed by the two jaws. Adjustmat is by a lead-screw, working in conjunction with a scale on the side of the qeady, and a dial on the hand wheel which is used to turn the screw. When these two scales are used together they enable the jaws easily to be placed in the position for grinding. Cuthbert Machine Tools, Ltd., Guildford, states that with this machine a reasonably skilful operator will, in a day, average 10 minutes per journal on various shafts.
The new Janita Plano Grinder has been designed by C.L. Equipments, Ltd., Wolverhampton, to grind quickly and accurately any component from a small manifold to a large cylinder block. Its table size is 40 ins. by 20 ins.
The 10-in, cupped grinding wheel is tilled slightly so that only one edge meets the work. The back edge cannot touch the piece as it is passed over the table. The grinding wheel is raised by a micrometer control. The trade price of the machine, which incorporates a 2 h.p. 400-400-volt three-phase motor, is £121.
Another addition to the Janita range is the Major valve refacer, price £65. It will take valves with stems between in. and in. in diameter and heads U p to 4 ins. across.
Wolf Electric Tools, Ltd., London, W.5, presents its Mobilectric comprehensive valve shop marks A and B. The mark A has a metal cabinet with trays, cables and sockets, and includes a precision valve refacer and a 55-degree heavy-duty valve-seat grinder type EVG3, together with various accessories. The mark B is similar, but incorporates the type ASG3 grinder instead of the EVG3.
Four new two-speed portable heavyduty drills of Fin, and fin, capacity, each fitted with 0.35 h.p. motors, have been introduced by Desoutter Bros., Ltd., London, N.W.9. The tools weigh about 91 lb. and are fitted with either -key-type clutches or Morse taper sleeves.
Kerry's (Great Britain), Ltd., London, E.15, has produced a new drilling machine for general purposes. Known as the Junior, it has a chuck capacity of in. and four spindle speeds from 535 r.p.m. to 3,950 r.p.m. It is fitted with a if h.p. motor and, less motor, costs £10 19s. 6d.
Besides the cabinet of four-way wrenches illustrated here, Thos. Meldrum, Ltd., Sheffield, 2, has also introduced a double-ended caliper gauge, a battery service tool for cleaning terminals and connectors, a six-way spanner and a four-way wrench cradle.
The cabinet contains six wrenches and costs £8. The cradle holds three wrenches and is priced at £4. The pocket-sized calipers, made of stainless steel, are priced at 5s. 6d. each. The sixway spanner, which retails at 25s.. can be supplied in Whitworth sizes from .1 in. to 9/16 in., or S.A.E. from 9/32 in. to in. across flats. The battery service tool, made of cadmium-plated steel, costs 9s. 6d. New sets of ring wrenches in Whitworth, U.S. and Metric sizes have been marketed by Jenks Bros„ Ltd., Wolverhampton. Uniform balance and correct proportions have been aimed at in the production of these tools, which are sold in boxes or roils.
The Acratork, claimed to be the only torque spanner of its kind made in this country, is a new sales line of Buck and Hickman, Ltd., Whitechapel Road. London, E.I. The torque loading is set with a key and when this loading is reached, torque on the nut is no longer applied. The Acratork may he pulled out of square with the nut to an extent.
Five models of the spanner are available: model A has a range of 0-15 lb.ft. and costs £6 10s.; model A/1 costs £7 16s. and has a range of 5-40 !bit.; model A/2 has a range similar to that of the A/1, but is designed for aircraft applications; model B is priced at £8 and has a range of 15-60 lb.-ft.: and model B1 has a range up to 100 lb.-ft. for heavy oil-engine application, and costs £8.
The Acratork test and setting rig costs £16 10s., and an attachment to provide extra torque is priced at 8s. 6d.
Hydraulic Trolley Jacks
Trolley jacks made by Epco, Ltd., Star Works, Leeds, 7, now incorporate Hydrigear hydraulic lifting gear. This enable the jacks to work at a speed relative to the load lift. At the base of the handle is a simple three-speed gear change to adjust the piston stroke. The No. 95 jack illustrated requires 8i piston strokes to raise it to its maximum height of 36 ins, in fast gear under no load. and 39 in fast gear under load. In normal gear, 65 strokes are required under load and 13/ light.
Eight of the 10 jacks offered by Epco, Ltd., incorporate Hydrigear. Capacities of the hydraulic models range from 2i toes to 10 tons. Danger of overloading is prevented by an automatic release.
A new shotblast cabinet designed for 'big commercial users, the Model 600/25, -.vas featured on the stand of Guyson
B8 Industrial Equipment. Ltd.. Otley. This equipment utilizes Soft-Blast, a medium that removes hard carbon deposit but will not scratch aluminium. The process has wide applications in electrical and fuel-pump servicing, and it may be used by coachbuiklers for the stencilling of patterns on glass panels.
The company has also introduced the Power-Post hydro-pneumatic bumper jack of 2-ton capacity. Elevation is effected by pumping a telescopic sleeve, whilst descent is controlled by a simple screw-release valve.
Simplicity is the main feature of the new wheel balancer made by Joseph Bradbury and Sons, Ltd., Braintree. It consists of a column with a hub and spindle at the top. The wheel is placed on the hub and when at rest an indicator is placed on the spindle so that chalk marks can he made to show where balance weights should be fitted.
To ascertain the weight out of balance, a measuring beam is placed through the spindle and adjusted until it counterbalances the heavy part of the wheel. The figure may then be read direct on the scale.
The dynamic wheel balancer, shown for the first time by the Weaver Manufacturing and Engineering Co., Ltd., Bedford, is claimed to be extremely accurate. It directly applies counterbalancing centrifugal force to a running wheel and indicates where weights should be attached. This machine was developed in the U.S.A.
Garage proprietors will be interested in an application of the company's new quick oil changer. The wand of the equipment is inserted into the dipstick hole of an engine and all the oil is pumped out of the crankcase into a Pyrex cylinder. The customer can then see the condition of the oil and if it
needs changing. fresh oil can be put in by the same method, a 4wo-way valve being provided for this purpose. If the oil does not need changing, an indication is given of the amount required to top up.
Tools by means of which independent front suspension systems may be checked in situ, are another new Weaver line, complementing the company's range of steering correction tools.
Other new Weaver products are an air-operated 60-ton hydraulic, press, and an adaptor for lifting vehicles with offset cifferentials.
Towing I.F.S. Vehicles Harvey Frost and Co., Ltd., Bishop's Stortford. has introduced a towing adaptor for salvaging vehicles with independent front suspension. This is designed for mounting (men ambulance turntable and consists of two wheel cradles on each side of a rigid framework. These cradles are extensible and packing pieces are provided to deal with wheels with flat tyres. Wheels are lashed to the cradles with chains.
A 3-ton gantry is another of the company's latest products, and it is particularly suitable for lifting heavy oil engiues from big lorries or tractors. With an overall height of 13 ft., the gantry gives a maximum lift up to 11 ft. 4 ins. Four screw jacks are provided so that the gantry can be made into a stationary unit. The apparatus is tested to withstand a 25-per-cent. overload.
Quick March is the name given to
a new transportable lubricator shown by C. C. Wakefield and Co., Ltd., 46, Grosvenor Street, London, W.I. This unit, which is available with alternative types of pump to suit varying air pressures and to deal with different lubricants, has been featured with the new rotary-head quick-cheek oil dispenser and the Ambassador and Viceconsul lubrication batteries.
The rotary-head dispenser will appeal to fleet operators. The movable head rotates through 270-degrees, oil being dispensed through a hose. Electric or air pumps are available and storage tanks may be installed directly below the dispenser or in a remote position.
The Ambassador battery dispenses two grades of engine oil and gear oil, chassis lubricant, spring oil and air. The smaller Vice-consul delivers engine oil, gear oil, chassis lubricant, spring oil and air.
Able to deal with rust-perforated silencers and the heaviest vehicle sec tions, a new arc-spot welder has been produced by Triangle Products, Ltd., HuIme, Manchester, 15. This equipment is virtually a combination of the Triangle Mark HI arc welder and a spot welder of the portable-tongs type.
in response to demand, the Pulsator air meter of BEN. Patents, Ltd., High Wycombe, has been put into production again and has been exhibited in its redesigned form. It is a pre-set air meter of the wall-mounted type, and the dial has readings of 10 lb. to 85 lb. per sq. in.
Three new products, a petrol-driven portable air compressor, a pneumatically operated connector for remote control and an air control, keep the name of William Turner (Kismet), Ltd., Sheffield. 1, to the fore. The compressor has a capacity of 2-3 cubic ft. per min. The B.B. Mark III air control has a large
Perspex dial and interior lighting, and is available in wall or pedestal form. The pedestal type embodies a rotary movement whereby the gauge turns towards the operator during use.
G. T. Riches and td., 19-21,
Store Street, London, Co.,if.C.1, is the factor for the new English Electric ignition tester. A vertical and a horizontal deflector plate in the cathode-ray tube of the tester are earthed; the other vertkal deflector plate is connected to the contact-breaker side of the coil and the other horizontal deflector plate to a plug to complete the circuit.
When the voltage changes in the hightension secondary and low-tension primary circuits, it causes corresponding vertical deflections in the trace. The trace sweeps from left to right each time the plug fires. In this way, a two-dimensional picture of ignition performance is drawn.
To detect potential faults, the energy in the ignition circuit can be loaded until misfiring occurs, the dial reading indicating the measure of the margin of reserve. The tester takes its supply from the battery of the vehicle under lest. It measures 18 ins, by in ins. by M ins, and weighs 28 lb.
The Riches concern has also shown the new Mann Egerton jack crane, which was described in "The Commercial Motor" dated September I.
A complete bay for scientific engine diagnosis has been on show for the first time on the stand of Crypton Equipment, Ltd., Bridgwater. The assembly includes the B.I00 motor analyser. Another new Crypton product is an export model fast battery charger.
Safe, economical lighting is provided by the new Davenset equipment, made by Partridge, Wilson and Co., lid.. Leicester. This consists of a transformer to provide 12-volt current for four 36watt handlamps. A fused plug is used for each lamp, a feature which has led to the approval of the equipment by the insurance companies for fire risk. Each handlamp has the usual guard and clip and costs 9s. 5d., less bulb and lead. The transformer costs 50s. These are trade prices.
One of the latest products of Messrs. Automotive Parts and Accessories, Hailsham, Sussex, is an automatic process timer for use in conjunction with the Bowes Seal Fast Lectoseal vulcanizer. The timer will operate for any required period up to two hours. Depending on the time required to vulcanize any particular work, the pointer is set on the dial and the current is switched off when the period expires.
Another Bowes Seal Fast innovation is a method of vulcanizing rubber valve stems to tubes. There is also a shop dispenser containing various sizes of bevelled rubber patch, a sheet of laminated rubber, a canister of solvent and an emery buffer. The magazines of the dispenser can be refilled with new types of package. The company has also shown a new work bench.
Wyresoles, the retreads embodying steel claws to give improved grip of the road, are now available in giant sizes and may be seen on the stand of Tyresoles, Ltd., Wembley.
Six new products of F. J. Edwards, Ltd., 359-361, Euston Road, London, N.W.1, will interest bodybuilders. An accompanying illustration shows one of these machines, the Besco treadle guillotine. This machine, which is of steelplate construction, is suitable for cutting various metals and its rated capacity is 36 ins. by 48 ins., 16 s.w.g. mild steel. One operator can deal with the heaviest cut.
The treadle is designed to prevent twisting should pressure be applied off centre, and an additional aid for the operator during the process of setting the gauges is concealed illumination over the cutting line.
Seven models comprise a new range of Besco guillotine shearing machines, fitted with electric motors. The steel blades have four cutting edges. Three of the models have direct drive and are designed to deal with 14 s.w.g. mild steel. The other four can cut 10 s.w.g. mild steel and are geared. The smallest machine has a blade 37 ins, long and is for cutting metals up to 14 s.w.g. mild steel, whilst the biggest machine, for 10 s.w.g. mild steel, has a 97.1-in. blade.
The company is also introducing a machine designed for swaging, wiring, flanging, jennying, necking or joggling and closing operations. Each machine is complete with 12 pairs of rolls for these applications. Another of its new products is a flanger for turning 7/32-in.deep right-angle flanges on curved, straight or irregular shapes up to 20 s.w.g.
Two more &see, machines complete the company's new range, a turret puncher and an angle-iron combination. Arranged for bench mounting, the puncher has 12 punches and dies of 1-in. -to i-in. diameter. The angle-iron combination is designed for shearing, notching and bending angle iron. Each unit for any one of these operations may be supplied separately.