The Engineering and Machinery Exhibition.
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Fourth Notice.
Messrs. Selig, Sonnenthal & Company (Stands Nos. 118 and 129).
A fine show of machine and small tools was made on the stands of this company, whose London addresses are 85, Queen Victoria Street, and Lambeth Hill, E.C. The exhibits included horizontal and vertical milling machines, high-speed lathes, gearbobbing machines and grinding machines of every description.
The " Sunclale " tool grinder, which we illustrate on this page, is a useful tool for the motorvan or bus depot. Its price is £4 15s. complete with a ioinch by ti-inct emery-wheel, and mounted in such a manner that it may be fixed to a bench. At this low price, it should find a place in even the smallest of repair shops.
Amongst the larger grinding machinery may be mentioned the " Sundale," universal, disc surface-grinder, on which all kinds of flat work may be finished off with the greatest degree of accuracy.
The 7t-inch self-acting, sliding, surfacing, and screw-cutting lathe, which the company exhibited, and which we illustrate herewith, is a useful tool for the small repair dep6t, and is marketed at a very reasonable figure. The headstock is strong, and well proportioned, and is fitted with a large-diameter mandrel, which is made of a fine quality of steel, with extra-long, gun-metal bearings. It will be noticed that the tail stock is cut away at the front, in order to clear the compound, slide-rest handles when working close up to the tailstock. All the feeds are of the quick-. change and positive type; they are operated by the handle and the feed gear-box shown in front of the headstock, and all changes of feed can be obtained without any necessity for stopping the lathe. The self-acting and surfacing motions are put in action by the knurled nut and handle shown on the apron. All movements are thus within easy reach of the workman. The gap-bed admits a faceplate about 28 inches in diameter, and is provided with an easily removable gap-piece.
Quite a large range of sizes, varying from 61-inch up to J4-inch centre, of this type of lathe are stocked at the showrooms, 85, Queen Victoria Street, E.C. The 7k-inch size, which is the one we illustrate, has a bed 9tinches wide and 8 feet long, but the same headstocks can be mounted on a 6-foot or 9-foot bed at a slightly decreased or increased cost.
Amongst other exhibits on this company's stand was a very fine, universal milling-machine. The capabilities of this class of tool are enormous, and almost every operation known in the machine-shop may be done on them. Charles Churchill & Co., Ltd., 9-15, Leonard Street, Finsbury, E.C. (Stands Nos. 132, 140 and 146).
This ‘vell-known importer of American machine-tools had a fine show on view, these exhibits not only exemplifying the latest and most approved equipment at the command of the modern engineer, but also illustrating the gradual evolution of the principal machine tools from the primitive lathe of many years ago. They include amongst others : a Warner and Swasey, hexagon turret-lathe ; a " N and W " combination turret machine ; a Potter and Johnston, automatic, chucking and turning machine; a Biernatzhi geargenerator ; a Zimmerman gear-planer ; various examples of radial and sensitive drilling-machines; and a Cincinnati, universal milling-machine with gearbox drive.
The 28-inch, upright drill, which we -show on .page 183, is a stoutly-built and useful machine, and one very suitable for shops of average size. The Churchill, universal grinding-machine, 'which we illustrate on this page, is. one of the very latest and most approved machines of its type. The capabilities of tools of this class, in their most improved form, are so remarkable that they are bound to be more and more employed. No special skill is re
quired for their operation, and the products are surprisingly uniform and accurate. Embodied in the many ma chine tools shown on this .company's stands, were numerous features which appealed to all practical men.