. .ENGINESCARBURETTERS -PISTON-RINGS-GEAR&
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Till.nited Motor Industiies, Ltd.'
[London-Office :'45-6, Poland Street, W.
ball bearings are amongst the best known acces, sories which this company markets. A feature of these bearings is •that the steel used in their manufacture has been .nvolvedafter:very..careful investigation, so that the requisite amount of 'elasticity throughout the metal is retained during the hardening process, in order to give the best results.
White and Poppe, Ltd.
Head Office and Works : Lockhart Lane, Coventry.
The universal application of the White and Poppc typo of carburetter is conclusive evidence of its efficiency and capabilities of affording automatic and economical carburation.
These carburetters are supplied with either the jet and throttle in the vertical or horizontal position, the latest form, type B, being of the latter construction. This takes up a much-smaller amount of room than does the older type.
This company owes its good reputation in no small measure to the excellent examples of internal-combustion engines which it manufactures. These are made in two, four and six cylinder types.
S. Wolf and Co., Ltd.
Head Office : 115, Southwark Street, London, S.E.
A remarkable range of accessories is marketed by S. Wolf and Co., Ltd. In the space at our disposal we can hardly include mention of every one, but we would call particular attention to the Solex radiator, in which the cooling fan is located directly in a nest of tubes. This accessory is being extensively used both in England and on the Continent, and many municipal authorities are very favourably impressed with its efficiency, having installed it on their public-service machines.
The Solex carburetter has also found favour with an enormous number of users.
For the requirements of the chassis builder, S. Wolf and Co., Ltd., markets the P.5.0, hall bearing, made to take either journal or end thrust. U.H. magnetos, by which the moment of sparking can be varied to about 30 degrees on the armature spindle, Sauser, E,yqueun and Tourist sparking plugs, and complete ranges ot tool kits suitable for any type of vehicle are also listed.
Henry Watson and Sons.
Head Office and Works High Bridge Works, Walker Gate, Newcastle-on-Tyne.
The quality of the cast iron utilized in the manufacture of cylinders, pistons, and piston rings has, of course,*considerable bearing on the efficiency of the engine. It is generally recognized that line closely-grained cast iron not only offers a smooth surface when finished, but is also conducive to long service of these component parts.
Henry Watson and Sons are fully awake to the requirements of the automobile engineer in this respect, and long experience and modern plant places them in a position to meet the most exacting requirements in the matter of supplying cylinders, etc., for internal-combustion engines for either passenger' or goods transport vehicles, also for marine installation, electric light and power sets. .Watson Phosforum is now extensively used in all branches of engineering on account of its homogeneous and anti-friction properties for bearings.
W. H. Willcox and Co., Ltd.
Head Office and Warehouse : 38, Southwark Street, London, S.E.
Practically every conceivable requirement for the manufacturer, user and garage proprietor is held by this London house. It is, of course, quite impossible, in the space here at our disposal, to include mention of all accessories that are stocked, but the following selection will no doubt be of interest to the Overseas user, or dealer, who should write for supplies.
• This includes : Willcox 14 in. centre box-bed, self:acting; sliding, surfacing and screw-cutting lathe, which admits work up to 20 ft. lengths ; the Typhoon imitable fan forge, built of steel plate, in which the fan spindle and speeding-up gears are monnted on ball bearings which run in an oil-bath, all gears being enclosed, and the casing being dust-proof.
The company's 756-pagecatalogue, in which are included • many hundreds of illustrations, well conveys the extent of the company's range of goods. One should he obtained.
762 Zenith Carburetter Co.
Head Office: 1.71, Gt. Portland Street; London,.-W. Icisclaimed for. the Zenith. earbiiretter: that it is a correct solution: of the principle of automatic carburation of not only in theory but in practice, arid this is fully bornb.out when it is understood that nofewer than 80,000 'engines of, all types have been fitted With, this particular -make, for both
home and overScas use. • In order to provide for consistent carburation, the -Zenith people incorporate two jets :—A main one for supplying fuel under ordinary working conditions of the :machine, and a compensating jet for starting purposes or when running light. The two jets are disposed concentrically one within the other. The main jet, takes its supply direct from the float chamber, and the amount of petrol drawn through varies according to the requirements of the engine.
E. G. Wrigley and Co., Ltd.
Works : Soho, Birmingham, England. London Office : 28, Victoria Street, Westminster, S.W The efficiency of service which Wrigley cut gears afford for the chassis builder gives conclusive evidence of the high quality of this company's productions.
An up-to-date metallurgical laboratory is in constant use. Careful steel analyses are carried out, and only those com positions of metals best suited to the production of various kinds of power transmission are utilized in the manufacture. Specializing in minor details as well as the larger ones ensures to Wrigley customers consistent and uniform quality of machined parts. In addition to the manufacture of gearing, E. O. Wrigley and Co., Ltd., is marketing gearbox units ready for immediate installation on the chassis, front axles, steering sets, and rear axles, both for the touring and commercial types of machine. These latter important units have been placed on the market only after careful design and close supervision throughout each detail of manufacture. In the Wrigley gearbox, the shafts are kept very short and are of ample diameter, preventing whip, and thus tending towards silent service. All running mechanism is mounted on ball bearings. Either the three-speed or four-speed .variety of gearbox can be supplied. Special mention should be made of the Wrigley back axle, which has recently been marketed, and is suitable for instal lation on a commercial vehicle with a load capacity of about two tons. This axle has been adopted by ninny motor•omnibus manufacturers and makers of goods-transport machines. Accessibility is a feature, and the main casing is so constructed that on removal of the cover the main driving .mechanism
may be taken from the a.xle without recouise to' jacking:up the road wheels. The worm utilized'in the final drive is carefully hardened and accurately ground and highly polished, as are the teeth in the. special phosphor-bronze .worm wheel. All -Wrigley work is finished to Newell limits, and British standard automobile threads are used throughout.