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Qood Equipment Makes All the Difference in
Page 80
Page 81
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Municipal Transport Maintenance
A Review of a Number of Appliances, the Installation of Which Will Speed up Overhauls and Effect Operating Economies WHILST there was a time when it was possible to offer excuses because methods of effecting some unusual type of overhaul or repair had to be carried out by extemporary means, to-day there is such a wide range of tools and equipment available that the difficulty may easily be in deciding which to purchase.
Although the requirements of municipal authorities need not necessarily differ from those of a public company, the use by a municipality of any particular piece of equipment is usually sufficient testimony to its reliability and efficiency.
As it is impossible to treat here other than with a few items, we have endeavoured to select those ivhich have an appeal fron the viewpoint of novelty, or which possess features particularly applicable in the present instance. Brake overhauls and maintenance call for expedition, combined with a degree of accurate workmanship such as will avoid the need for constant attention when the vehicle is again put into service.
Valuable additions to such equipment are the G.E. brake drum truing plant and the G.E. refacing machine. The former is a dual-purpose tool for truing and grinding brake drums of from 8 ins. diameter up to the largest sizes at present in use.
With the G.E. refacing machine the old facing can be stripped off, the shoe refaced and accurately ground to diameter in 3 mine. 10 secs. This brake reconditioning equipment is by Joseph Bradbury and Sons, Ltd., Braintree.
Considerable advance has been made in recent years in washing appliances, not only for vehicles but for oily and greasy component parts. In its Niagara four-gun vehicle 'washer, the Laycock Engineering Co., Ltd., Victoria Works, Millhouses, Sheffield, has a plant which maintains a working pressure of 375 lb. per sq. in. with the guns fully open.
With paraffin as fne cleansing agent the Laycock cleansing tank has a pressure jet, the operator working a semi-rotary pump by means of a treadle.
The same concern is also responsible for a 60-ton hydraulic press, its particular application being to the straightening of axle beams or bending shafts, etc.
A tool having similar uses is the Porto-Power, by E. P. Barrus, Ltd., 36, Upper Thames Street, London, E.C.4. Whilst it can be used as a 7-ton press it can be adapted to such purposes as chassis-frame straightening and bush
removal. , Lifting Appliances,
Of lifting jacks, there are types and sizes to meet every contingency. From the wide range made by Lake and Elliot, Ltd., Braintree the Millennium 5-ton model is particularly suited as part of the equipment on a vehicle. It is of the triple-screw type, having a lift of 111 ins.
The Dunlop Rubber Co., Ltd., Fort Dunlop, Birmingham, besides being responsible for a useful range of lifting jacks, also carries a number of manceuvring appliances, both hydraulic and mechanical. One might say that something of this nature is almost a necessity on premises where space is restricted.
Where heavy components have to be dealt with from the pit, a jack specifically designed for such use overcomes numerous difficulties., One such item is that for which the Equipment and Engineering Co., Ltd., 2-3, Norfolk Street, London, W.C.2, is responsible.
It is of the hydraulic pattern and can be supplied with either a single or double telescopic ram. A feature worthy of mention is the cross traversing arrangement 'whereby the jack proper can be moved from side to side, independently of the bogie.
An efficient oil-recovery plant is of some importance to municipal undertakings, and there are few but which have suitable equipment of this nature.
A popular piece of filtering equipment is the StreamLine, of which there are several models. As an example. Model 0 19 has a capacity, with average oil, of 20 gallons in eight hours, the output being controlled by the viscosity of the oil. Little attention is called for during filtration, and then only 'to clean the filter pack—which takes but a few minutes.
The Kelbus oil regenerator is another serviceable plant for which the Transport Engineering and Equipment Co. (Leeds), Ltd., 24. York Place, Leeds, 1, is responsible. It is not a filter, but relies for its operation on crude-oil refining principles. The cost of regeneration is 3fd. per gallon.
This concern supplies a portable type of wheel weigher, the general design of which follows standard weighbridge practice, with hydraulic indicating mechanism.
Battery boosters are almost a necessity in a municipal garage, as circumstances often, arise where the dynamo, on the vehicle, cannot balance the output from the batteries. The Westinghouse Brake and Signal Co., Ltd., 82, York Way, King's Cross, London, N.1, makes a booster which can deal with the batteries on six vehicles at a time. A Westinghouse metal rectifier is used, which is capable of dealing with six 12-volt batteries, at current values up to a maximum of 25 amps.
F. C. Heayberd and Co., 10, Finsbury Street, London, E.C.2, supplies a metal rectifier type of charger, rated at 60 volts, with a charging rate of from 12 amps. to 30 amps. It has an automatic cut-out, _
Rotax, Ltd. ,,a subsidiary company of Joseph Lucas, Ltd., Great • King Street, Birnaingharn, 19, supplies a . useful range of electric tools of particular appeal. These include sanders, polishers, valve refacers, double-ended bench grinders and lightweight drills.
The valve refacer deals with valvesapot from 1 in. up to 4 ins, diameter, and stem sizes from I in. up to I+ This machine is adaptable to many other uses, such as sharpening valve-seat reamers and cylindrical grinding.
Degreasing plants, as made by Imperial Chemical Industries, Ltd., Millbank, London, S.W.1, are used by many municipal authorities For small parts the Popular model is fo,und suitable, whilst for the handling of all classes of work, the larger types of vapour machines would, be employed. Special models are available, including plants which may be adapted to conveyor systems and thus degreasing, cleaning and drying become a progressive
operation. In all plants the solvent used is trichlorethylene. Of compressors and compressor plants there are many examples. B.E.N. Patents, Ltd., Gorst Road, Park Royal, London, N.W.10, markets a machine known as the PneuSpray, which will operate a 31-in, spray gun continuously at 50 lb. per sq. in.
William Turner and Bro., Ltd., 44, Eyre Lane, Sheffield, supplies the well-known Kismet range of equipment, of which the Speedair, portable compressor, and wall-type balance have a particular appeal for tyre inflation purposes. The compressor is a self-contained unit, the electric motor-being installed on the trolley with the compressor.
Fuel and Oil Dispensing.
A most important side of a municipal undertaking's vehicle depot appertains to the means provided for fuel and oil dispensing. The Hammond Pump and Equipment Co., Ltd., Kingsbury Works, Kingsbury Road, London. N.W.9, and the Wayne Tank and Pump Co., Ltd., Wayne Works, Newlands Park. London, S.E.26, are both well known for their petrol-pump installations, and in addition to many of the oil companies, Tecalemit, Ltd., Great West Road, Brentford, Middlesex, amongst others, specializes in oil-dispensing equipment.
Its Earls Court, high-pressure, lubrication battery is designed to dispense three grades of gear oil, a penetrating oil and grease; it is equipped with a tyre inflation line.
A high-pressure oil-dispensing plant, planned on the unit system, is supplied by Henry Miller and Co., Skyhi Works, Standard Road, Park Royal, London, N.W.10.
A useful reference list, in which are included the names and addresses of equipment manufacturers or suppliers, is given every week in our advertising pages. They figure under headings giving the goods for which the different concerns are responsible.