LAMPS -RECORDERS-CARBURETTERSCHAINS.
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Pollock and Macnall, Ltd., Head Office and Works : Britannia, Machine Tool Works, Bredbury, Manchester.
Many leading automobile engineers throu,..,sbout the country have, at one time or another, installed Pollock and liefacnab productions, bath in their machine-shop and toolroom.
Attention is directed to the 18 in. Apollo combination turret lathe, also the company's latest type of broaching machine. Both these tools embody features conducive to the production of work of first-class quality with a minimum of attention on the part of the operator. The length of bed of the lathe is 8 ft. 3 ins., the breadth being 14 ins.
A point of considerable advantage on this machine is the incorporating of a single pulley for driving the headstock, so that, no matter what diameter of work, within the capacity of the lathe, is being turned, the maximum cutting power and full output are always available.
Rushmore Lamps, Ltd. • Head Office : 46, Brewer Street, Piccadilly Circus, London, W.
The, electric searchlights turned out by this company have been largely adopted by many leading naval and 'military authorities, so that it is not surprising that the company has specialized in the manufacture of lighting outfits for use on commercial vehicles.
The latest production of this concern is the Rushmore electrical engine starter. This starter is arranged directly on to the engine through the medium of a pinion and toothed ring farmed on the periphery of the engine flywheel. Suitable means are provided readily to throw the gear in and nut, according to requirements, the action being quite. automatic and working on the electro-magnetic principle; overrunning is absolutely prevented.
Rotax Motor Accessories Co. London Office : 43-45, Gt. Eastern Street, E, C,
Electric ear-lighting sets, incorporating the Leitner system, acetylene-lighting equipment, Clarion horns, lifting jacks, mirrors far steam wagons, and complete too: kits for the machine are some of the very many accessories marketed by this company. Of special interest to the Overseas user is the Rotax acetylene-lighting set. The maker claims this to be a very strong. and powerful outfit, and states that no brazing or solder is used in tho construction of the body of the lamp. The entire absence of rivets ensures that the accessory will satisfactorily withstand excessive vibration.
The equipment ,gives a powerful driving light, the pro jectors being fitted with 1\ittligin lens mirrors and silver-plated parabolic reflectors. Bray's 'Boni' burners are used in the lamps. The generator works on the drip-feed system, and only three component parts are incorporated in the casing.
The carbide is carried in a special grate fitted to a false bottom of an interior receptacle of the generator.
During the running of the machine to which it is fitted, the residual products fall away from the carbide through tbe grate into a chamber. This feature is ccinducive to the easy cleaning of the container. Randle Radiator Co.
Head Office and Works : Nelson Street, Coventry.
Efficient cooling of the engine, of course, has considerable bearing on the life of this unit. The radiators and fans turned out by the Handle Co. have been well proven under working conditions, and in addition to the Home users of the Randle radiator a considerable number of export orders have been placed with this company, which manufactures both the older type of honeycomb and the modern and approved builtup radiator inc6rpnrating cast header arid a base—a type very suitable for industrial conditions. In addition, bonnets, petrol and oil tanks, dashboards, silencers, and all kinds of sheet. metal work, are turned out.
Smith, S., and Son, Ltd.
Head Office 179, Great Portland Street, London, W.
Associated with this London house is, of course, the wellknown Smith speedometer, and so great has been the demand for this particular type of recorder that the company is providing for the output of no fewer than 800 speedometers per week during the coming year.
The instrument works en the centrifugal system, and has the reputation of giving extraordinary steadiness to the indicating hand and affording a true register at all speeds under any varying conditions of vibration. It is also unaffected by temperature variations, a point which is sometimes raised against the magnetic type.
Smith and Sons are going apace with the industry, and in addition to recorders and the instrument just referred to, market a big range of accessories suitable for both the touring and the business type machine. 'Elie Smith multi-jet type of carburetter has been evolved after consistent experiments_ Unlike many carburetters on the market of the multi-jet type, no special tool is required for dismounting the carburetters or changing the jet, and the Smith earburetter can be used Overseas with advantage. Other accessories emanating from Speedometer House are dynamo lighting sets, exhaust pressure valves, lifting jacks, acetylene lighting outfits, head, tail, and side lamps, nrAor horns, etc.
Hans Renold, .Ltd.
Head Office and Works : Progress Street, Manchester. Works, Brook
In addition to the manufacture of the older form of roller chain and-the more modern silent chain suitable fur the automobile industry, this well-known maker supplies chains for use in mills and engineering establishments, as well as for auxiliary drives in marine sets and electric-light stations • in fact, Renold chains suit in any case where it is required to transmit power. All steel utilized in the manufacture is of consistent quality and uniformly tempered, and ample bearing surface for each link is provided to keep the working pressure per square inch down as low as is practicable.