PORTABLE MINING MACHINERY.

Thames Star, Volume XIV, Issue 4507, 15 June 1883, Page 2

PORTABLE MINING MACHINERY.

The Castlemaine Leader gives the following description of a new patent which is likely to prove of some value to the mining community:—"Mr Scott, the inventor of the combined engine and battery, was general manager and engineer of the celebrated Coltness Ironworks in Scotland until his health necessitated a visit to a milder climate. The patent consists of a special combination of the battery and engine, by which the latter is carried on the iron cap of the battery horse, and the whole has been designed to be as light as is consistent with rigidity and strength. The engine is a sin cylinder, lOtn stroke, calculated to work at 200 revolutions and at a pressure of 80; and the horses are made of iron, but in pieces. bolted together for convenience of carriage and ease in erection. The engine shaft carries the flywheel and pinion, working in a cam shaftwheel of 4 feet diameter. The gear is shrouded and turned, the shanks are 3in screwed, and the discs Walt's patent. The stamper-box has self-fastening linera to all necessary parts that can: be removed and replaced without bolts in a few minutes. The heads are the ordinary pin. diameter shoes and heads. The cheeks carrying the guides are of Oregon pine, and are also bolted to the iron horses; The boxes are damped to the wood cheeks, and thus avoid some of the vibration that is sometimes urged against horses and cheeks wholly of iron. The engine \» fitted with governors, and made to work as economically as possible. Each battery is complete in itself. It seems as if a long felt want has been supplied, in a semi-portable battery of the full power of an ordinary five heads, that will alike suit for a twenty-head plant or a prospecting party. .. , . """' .'-..-• \/:;':'--