US56581A - Improvement in quartz-crushers - Google Patents

Description

1 MABBS.

Quartz Crusher. Y No. 56,581. Patented my 24, 1866.-

JOHN` MABBS, OF ISLE ROYAL MINES, MIOIGAN.

lMPROVEMENT IN `QUARTZ-CRUSHERS.

Specification forming part of Letters Patent No. 56,581., dated July 24, 1866.

a, which fits into a corresponding square socket, I), in the middle, or nearly so, of the horizontal shaft E, the ends of which form the bearings for the mullers F. These mullers travel in the circular trough G, one on the inside thereof and one on its outside, as shown in Fig. 1, so that all the quartz contained in said To all whom 'it may concern Be it known that I, JOHN MABBS, of Isle l Mines, Lake Superior, in the county of Ht ghton and State of Michigan, have invented a new and Improved Quartz Crusher and Pulverizer; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which-' Figure l represents a vertical section of this invention. Fig. 2 is a horizontal section of the same taken in the plane indicated by the line x Fig. 1.

Similar letters of reference indicate corresponding parts.

This invention relates to certain improve ments in that class of pulverizers which are known by the terni Chili Mills.7

The improvements consist 'in the arrange ment of a feed-table which revolves between the wheels or mullers at a less speed, and on which the quartz is fed in such a manner that by the action of said feed-table the quartz is evenly7 distributed and exposed to the action of the mullers. A suitable plow, which is secured to the horizontal axle of the mullers and sweeps over the surface of the tables, causes -the quartz which accumulates on the table to drop down with uniform speed into the trough in which the mullers run. Two other plows, which sweep through this trough, serve to keep the quartz under the mullers and to discharge the pulverized quartz. The operation of pulverizing is facilitated by admitting water from a tank secured to the vertical arbor of the mill, and the horizontal arbor of the mullers is fitted to said vertical arbor, by means of asquare, in such a manner that each muller can rise and fall without disturbing the action of the other muller and without producing any strain in the shafts.

A represents a frame of wood or any other suitable material, which forms the bearings for the vertical shaft B, to which a revolving motion is imparted by suitable gear-wheels O, which, in practice, will be bevel-wheels, and by a belt running over a pulley on the secondary shaft D.

trough is reached by the crushing-faces of the mullers. The shaft E, being loosely connected to the main shaft B, allows each muller to rise and fall independent of the other, whereby the operation of crushing or pulverizing is materially facilitated.

On the upper part of the shaft B is fitted 2 sleeve or hollow shaft, H, to which an inde pendent revolving motion is imparted by th action of a belt, I, as shown in Fig. 1, and thi` motion is somewhat slower than that of th main shaft B. To this hollow shaft is secure the feed-table J, on which the quartz to b pulverized is fed by an endless screw, K, c any other suitable mechanism.

The quartz which accumulates on the feet table is swept off by the action of a plow, l which is secured to the horizontal shaft E an extends over the edge of the table. Said ploi being made to revolve with the main shaft l travels round with a somewhat greater veloci' than the feed-table, and the quartz is grad ally swept oif and caused to drop down in the trough G, where two other plows, M, ser to keep the same under the crushing-faces the mullers. The pulverized quartz, on d charging from the trough G, collects in a s ondary trough, N, from which it discharg through a spout, r.

The operation of crushing is facilitated a current of water which is discharged fri a tank, O, on the feed-table in front of low L. This tank is secured to the tubu shaft H; but in practice I prefer to attacl to the main shaft B, so that the curreni water discharging therefrom will continui keep in advance of the plbw L.

The endless screw K runs in a trough which is secured over the table J, as cle: shown in Fig. 1, and a revolving motio' imparted to it by a pulley and belt or other suitable means, or, instead of the sc:

a feed-table or chains may be applied, and feed mechanism may be so arranged tha ated by a cone-pulle The main shaft B is provided witha square, speed can be regul other suitable contrivance, according to the quantity of quartz to be fed to the pulverizer. What I claim as new, and desire to secure by Letters Patent, is-

l. The feed-table J mounted on the tubular shaft H, in combination with the mullers F and main shaft B, constructed and operating substantially as and for the purposes described.

2. The plow in combination with the feedtable J tubular shaft H, and horizontal shaft E, constructed and operating substantially as and for the purposes set forth.

3. The tank O, in. combination with the plow L, feed-table J, and mullers F, constructed `The above specification of my invention signed by me this 2d day of April, 1866.

JOHN MABBS.

Witnesses: v

WM. F. MGNAMARA, W. HAUFF.

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