The Purchase Department,
Page 19
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Where to Buy your Supplies.
You.Can Get It At- " Northern User."—The addresses of the french tire manufacturers for which you ask are :— Societe des Etablissements Bergougnan, ClermontFerrand.
Societe Anonyme Continental, 14(-I, Aventle de Malakoff, Paris.
Automatique Ducasble, 148, Avenue de Malakoff, Paris.
An Automatic Screw-driver.
In almost every trade the present tendency is to produce machinery capable of doing a greater amount of work in a given time than has previously been the case. Some few labour-saving machines have proved, when placed in service, either to be expensive, or to possess other faults which render their use prohibitive. One would imagine that an automatic screw-driver is almost too much to ask for, and would further argue that, unless many hundreds or thousands of screws were driven in the course of a day, such a, machine was not required. It is only when an article of the type mentioned is first used, however, that its usefulness becomes apparent.
Messrs. Rossell Bros., Little-worth, Redditch. firm which has achieved some reputation in the manufacture of small machine parts, tools, jigs, and so forth, have placed on the market the Rossell patent automatic magazine screw-driver. This forms an attachment which is clamped in the socket of an ordinary sensitive drilling machine, and it automatically inserts wood screws without any handling of the individual screw.
The work is done by depressing the sensitive feed lever of the drilling machine, and as one screw is driven, another one is ready to follow immediately. The screw being driven is visible to the operator, so rendering its accurate placing comparatively simple.
The Artistic Finish of Public-service Vehicles.
With the great improvements in chassis design which have taken place during the last few years, there is a desire greatly to improve the interior equipment of public-service vehicles. Some few years ago, it was a common cause of complaint that seats were badly upholstered and sprung, the paint on the interior of motorbuses was badly applied, and the vehicles were smelly and stuffy.
The important subject of chassis improvement, however, occupied most of the designers' time and thought at that time. Having now produced reliable vehicles which can be depended on, day in and day out, it is not without satisfaction to note that attention is being paid to the question of the interior fittings of motor vehicles. The Tyne,castle Co., of Albert Works, Edinburgh, manufacture a range of "Tynecastle " fine linen and embossed canvas enrichments intended for the interior decoration of motorbuses, chars-à-bancs, etc. These decorations are clean and sharp in relief, the modelling is delicate and artistic, and gives a pleasing finish to the interior of the vehicles to which it is applied. The company claim that this material will successfully withstand the effects of continual vibration when the machines are in service. It is applied in the same way as is ordinary relief wallpaper, and it is said to be less expensive than polished wood or wood veneers. The,yentilation of Vehicles.
We have devoted space in this journal, from time to Lime, to the question of the provision of suitable vehicle ventilation. We are informed by the Acme Ventilating and Heating Co., Tarleton Street, Liverpool, that they manufacture a full range of ventilaI ors intended for use on motorbuses, taxicabs, which is in increasing demand.
The Selection of Suitable Tires.
The greatest problem of the user is, in the opinion of many, the question of tires. Many vehicle owners have only acquired their knowledge on this subject., as the result of long and expensive experience gained over a period of years. The more enterprising of the tire companies are now supplying users with fullest particulars and instructions bearing on the selection and upkeep of solid tires. It is obviously to the advantage of a tire manufacturing company that its productions should exceed the guaranteed mileage wherever possible, and it is unsatisfactory, both to user and manfacturer, when tires fail on the guarantee.
In an attempt thoroughly to familiarize users with. the employment and selection of its products, the Dunlop Rubber Co., Ltd., has produced a new catalogue, which is known as list No. 575. This deals in a concise manner with the subject of solid tires for commercial vehicles. Here will be found tables giving load ratios, in addition to tables dealing with suitable tire sections. A series of photographs giving a good idea. of the way in which the Dunlop products stand up in service follows. A few wotxls on the treatment of tires, accompanied by diagrammatic drawings of wheel alignment, should be of considerable interest. A description is also given of the Dunlop hydraulic press for the re-tiring of wheels, and this is followed by a series of photographs showing vehicles equipped with Dunlop tires.