News of the week (continued)
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FORTHCOMING REPAIR CERTIFICATE PRACTICAL TESTS.
PRACTICAL tests in connection with the repair-certificate movement, sponsored by the Institution of Automobile Engineers, will be held in September and December, and those who are interested can obtain full particulars from the secretary of the Institutipn, 12, Hobart Place, London, S.W.1. Applications for the practical test in Section A (mechanical) will be considered from candidates of 23 years of age or over, whilst for Section B (electrical) the minimum age is 21 years.
Clupet Piston-ring Appointment.
LARGE stocks of all types of Clupet piston ring are being carried by J. D. Morrison and Co., Ltd., 11-13, New Wakefield Street, Manchester, which • has been appointed sole representative for Lancashire, Yorkshire, Cumberland, Westmorland, Northumberland and Durham for the well-known
Clupet double-coil piston ring. The manufacturer of rings of this make is Clews, . Petersen Piston Ring and Engineering Co., Ltd., Mill Lane, Hampstead, London, N.W.6.
Low.priced Tyre Gauge for Fleet Operators.
SERVING as an addition to the range of Hilco tyre gauges is a new pocket service gauge, which has recently been placed on the market by Hills (Patents), Ltd., Hills House, Chenics Mews, London, W.C.I. Features of the Hilco pocket service gauge are that it is suitable for use on twin-wheelvehicles with valves at opposite angles, as well as -those with single tyres. Its retail price is 7s. 6d., and it gives readings of pressures between 29 lb. and 200 lb. in 2 lb.
units. Its loW cost should attract fleet operators desirous of providing their drivers with service gauges.
"Motor Cars To-clay."
THERE are few writers who can 1 make light reading of a technical subject and who have, at the same time, full and accurate knowledge of that subject. Evidence, however, that its author is such a man is afforded by a new book called "Motor Cars To-day," by John narrison,
A.M.I.A.E., published by the Oxford University Press (price 4s. 6d.), which is one of the Pageant of Progress series, and is worthy of the attention of all who are interested in the automobile.
Of its 207 pages, 25 are devoted to tracing the history of the motor vehicle in two chapters. Most of the remainder is allotted to descriptions of principles, mechanisms and specific components. Comprehensive, lucidly
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written in what, at Ohms. may be described as a breezy style, well illustrated with photographic reproductions, drawings and diagrams, the book is, obviously, from the pen of one who is experienced in all branches of motoring for sport, pleasure and business, and conversant with its technicalities
as well. • New Dodge London Distributor.
RECENTLY appointed a Dodge distributor for the West, West Central, City and South-eastern districts of London. University Motors, Ltd,, of Piccadilly, London, W., has opened a
depot at Lion Works, Lot's Road, Chelsea, S.W., which is devoted entirely to the sale and servicing of vehicles of this make; an interior view is shown in an accompanying picture.
The service department is under the control of Mr. A. Jolley, who has been associated with the Dodge organization for a number of years. The stores are being looked after by Messrs. J. Blackwell and S. Burnett, both of whom have been concerned with Dodge spares for 16 years. The sales depart. ment will also operate from the same depot, and a full range of vehicles will at all times be available for inspection. Mr. H. S. Carr, who has had over 20 years' service on the Dodge sales side, is looking after the " fleet " business.
Worcester By-pass to Ease Transport.
ANEW by-pass of particular value to mad transport, which will lead traffic clear of Droitwich Spa and Worcester, on the east of both towns,
is to be constructed. The proposal came before Worcestershire County Council, last week, in a report by the highways and bridges committee,
SAFETY GLASS BUSINESS EXPANDS.
ONE of the few independent corn panies manufacturing safety glass British Indestructo Glass, Ltd., i! extending its plant for the third gm( in a year, to 'cope with the increase( demand for its toughened glass: It claimed that this product is obtainet by a unique process, the result ()six years' experience on the Continent
Guy's Silver Jubilee Brochure.
9-0 commemorate the silver jubilee .o: 1 Guy Motors, Ltd., the company ha: issued a. neat and striking brochun entitled "Twenty-free Years' Progres in Commercial Vehicle Design." Ii illustrates no fewer than 39 distinci designs and types produced since 1914 dealing also with certain development: in car and aero-engine design.
As indicative of the versatility of tiu company, it refers to a record of 1918 when a 350 tt,p. a,ero engine with nim cylinders was produced from initia design and completed within 24 days whilst the first eight-cylinder car ir this country emanated from the corn.
mercial-vehicle factory in 1919. • Other sections concern the develop. meet of vehicles for goods and pas. senger carrying, and in connection witt battery electric and gas produce! vehicles.
Progress in cross-country machine is traced from chain-track types vu various stages of the, six-wheeler tc the latest type of four-wheel drive.
In the case of passenger vehicles the developments recorded are gig drop-frame, ..low-loading chassis, pro. menade runabout, one-tnan-operatet bus, and six-wheeled clouble-decker: and trolleybuses. CHANGE OF USER GROUND FOR REFUSAL. TT is learnt that the Yorkshire 'Licensing Authority has refused to regrant three A licences in respect of which a question of user was raised by the railway opposition. The applicants were Mr. H..Shuttleworth, of Bradford, Mr. J. Cooling, of Heckmondwike, and Mrs. E, Hattersley, of Leeds.
During the hearing of the -applications, it was stated that the applicants had entered into agreements with Archbold and Co., transport contractor, of Leeds, for that company to manage their businesses. The railway objectors argued that Archbold and Co. had, in fact, become the user of the vehicles in question, and therefore the applicants were no longer entitled to hold licences in respect of them.
For the applicants, it was contended that the arrangements between the applicants and Archboldand Co. did not involve any change in the user.
independent Authority Approves Cords Piston Rings. rIONVINCING evidence of the effi
ciency of Cords piston rings, made aid marketed in this country by the :ords Piston Ring Co., Ltd., BO, -larripstead Road, London, N.W.1, 'eaches us from Denmark, the country if their origin. It is afforded by the .eport of a test recently carried out by he Technologic Institute of Copeniagen.
For, the sake of comparison three ests were made of an engine, which vas well worn and in need of an overtaul, using first the original rings, then , set of standard rings and, finally,
lords rings Speed and load were .pproximately the same in each case ad the trials were continued in the trst and second tests until most of the iil was used, and in the third for con iderably longer (30.5 hours). •
Rate of oil consumption was 0.232 kg. per hour with the old rings, 0.227 kg. per hour with the new standard rings, and 0.026 kg. per hour with the Cords rings. The respective iron-oxide contents in the residual lubricant were 0.303, 0.383 and 0.112 grammes per litre. These later figur'es give an indication of the wear occurring under the three different conditions, but cannot be accepted as exact because of the differingquantities of residual oil. The horse-power readings for the three tests were, respec
tively, 10.9, 10.0 and 11.1. Petrol consumption, in kg. per h.p.-hour, was 0.345 in all cases.
Summarizing the position, the Institute states, in effect, that Cords rings " may generally be taken to effect a substantial reduction in oil consumption " where ordinary piston rings fail to do so, also that "it may he assumed that wear will be somewhat less.'' Shipping Guide for Hauliers:
THE following is the number of / ships arriving at the London docks,wharves and jetties named, from August 11 to 19 inclusive :---Docics King George V, 8; Royal Albert, 13; Royal Victoria, 3; Surrey Commercial, 8.; East India, 1; West India, 3; SouthWelt India, ; Tilbury, 15; Tilbury Stage, 4; 1V1illwall, 5; London, 3. W1IARVES Hays, 6; Mark Brown's, 1; Butler's, 1. Tilbury Jetty, 2., Regent's Canal., 2.
BY-PASSING MARKET STREET, MANCHESTER.
TRAFFIC congestion in Market I Street, Manchester, is to be relieved by widening the parallel road, known as Cannon Street, which forms part of a convenient alternative route. The present average overall width is 36 ft. This will be made 74 ft. at an estimated cost of £176,000. The carriageway, 48 ft. wide, will have an asphalt surface on a concrete foundation divided by central islands. The footpaths will be 15 ft. wide. 'The work is expected to occupy 12 months.
New Bedford 5-tonner.
IN our report of the performance of
the new Bedford 5-tonner, which appeared in our issue dated August 4, the picture showing the interior of the cab is erroneous. It depicts the cab of the new 30-40-cwt. and 2-3-ton models, not that of the 3-4-ton and 5-ton machines, and was included inadvertently.
An accompanying view, reproduced from a photograph taken by one of The Commercial Motor staff photographers during our road test, shows the 5-tonner driver's compartment, one seat cushion being removed to display the brake lever. The main difference lies in the engine housing, which protrudes into the cab in the case of the larger models. The comfort provided for the driver was commented upon favourably in our report,