US88216A - Improved crushing and q-rindino-machine - Google Patents

Description

J. W. BUTTER. GRUSHING AND GRINDING MACHINE.

No. 88,216. Patented Mar. 23, 18 69.

fiuiml' time JAMES W. BUTTER, OF ST.-LOU1S, MISSOURI.

Letters Patent No. 88,216, dated Mar 23,-1869.

IMPROVED CRUSHINTG' AND GRINDHG-MACHIICBQ m ichodule referred to in. these Le ters Patent pnd making put 0': the lam .To all whom it ma cimerrt:

Be it known that I, J AMES W. BUTTER, of St. Louis, in the county of St. Louis, and State of Missouri, have invented a; new and improved Crushing and Grinding- Machine; and I do hereby declare that the following is a full, clear, and-exact description of the same, reference being had to the accompanying drawing, forming a part of this specification, and in which- Figure 1 represents a sectional elevation of a crushing and grinding-machine, constructed according to my improvement; and' Figure 2 represents a horizontal section of the same, taken through the line a: a: in fig. 1.

Similar letters of reference indicate corresponding parts in both figures.

This invention relates to that class of crushing and grinding-machines in whicli'a conical grinder, or crusher, with concentric and eccentric bearings, is operated within a stationary upright cylinder, or chamber, or in which the crushing-chamber ismade conical and the crusher straight; and the invention consists in the combination, with such crusher and its cylinder, or chamber, of a gauge-ring of novel character, whereby ore or other material'to be crushed, or ground, when placed within -the cylinder, is checked in its descent, and prevented ties, and arranged in a vertical position, resting upon.

a horizontal base, I).

.B is-a crusher and grinder, of conical, or tapering form,' and secured to an oscillating arbor D, suspended from-the cap of the cylinder, by means of a universal hall-'and socket joint, E, and is made to swing in a circular orbit, around the axis of the cylinder, by the rotating -of. an -eccentric-box, a, carrying the lower extremityof the arbor D, and fitted in the hub of a horizontal spur-wheel, G, arranged under the base-plate b, and driven by a pinion, h, of a suitably-arranged counter-shaft, H.

O is a gauge-rin g, constructed of iron or other metal, and. preferably of a form as represented in the drawing, but may be of any suitable form f r effecting the purpose for which it is designed.

Said gauge-ring G is carried upon the upper extremity of the hub of the said spur-wheel. G, with its upper surface fitting against the under surface of the glilider B, and serves to prevent thedownward escape of the material, before it has been sufficiently reduced, but permits the ready escape of said material after it has been suiiicicntiy rodiu-idby means of an annular space, 1:, left between its outer edge and the inner surface of the cylinder; and, as it turns with the .hub, it

also serves, to some extent, as a distributer, changing the position and locality of=the lumps, or parables o the material at the bottom, and thus presenting new surfaces thereof to the action of the crusher.

Said gauge-ring Q is, or may be, provided' with a clearer, or stripper j. Said clearer, or stripper j, is constructcd of steel or other suitable metal, and is so arranged as, by the rotating of said gauge-ring O, to scrape against the inner surface of the lower part of the cylinder A, immediately behind the point where the material is being subjected to the greatest crushing action of the grinder B, thereby to. scrape off, and to prevent the adhering of the material to the said surface.

This stripper, or clearer, is unnecessary, except in grinding such material as is liable to adhere to the cylinder, when in a crushed or powdered state.

Suitable openings a. are made in thecap, for insertion of the material to be crushed, or ground; and also similar openings 0 o are made through the base-plate b, and gearing-wheel G, for the downward passage of the said material, after it has been crushed and ground.

Motion is imparted to the shaftH by any suitable application of power, and the material fed in at the top gradually works its way downward, by action of gravity, as in other vertical crushers, or grinding-machines.

It will be evident, that if a piece of ore, or a rock, or other material, be placedin the cylinder, while the crusher B is' in the position indicated by the red lines, it will, by the motion of said crusher, be subjected to a crushing and grinding-force, and will be more or less reduced, according to the locality it occupies in the cylinder. If near the top, as at K, it will be broken into two or more pieces; but if it be small enough to lie near'the bottom, as at K, it will be reduced to gravel or to powder, its fineness depending upon the adjustment at which the eccentric-box c and gauge-ring O are set.

In the arrangement represented-in the drawing, the crusher B does not rotate upon its axis, but in some cases may be made to do so. The ore or other mate rial descends, as its lumps, or particles are reduced, until it reaches the face of the gauge-ling 0, where it is checked in its downward motion, and moved round with the said gauge-ring by the friction of its surface, until said lumps, or particles, by being subjected to the repeated crushing and grinding-action of the crusher, become sufficiently reduced to drop through the annular space 0.

The crnshing-chaniberA need not necessarily be of cylindrical form on its inside, but of polygonal or varied configuration, and may bemade tapering, or conical, instead of the crusher B, which may be made straight.

- Difiercnt constructions, also, maybe adopted for feed and delivery of the material to and from the ini1l, 'or machine:

Also, additional; grindin g-surfaces, or plates, if necessnry, may be arranged below. the crusher, for further reducing, material.

A mill, or machine constructed upon this principle,

or. finely powdering the crushed and ground is applicable to crushing and grinding substances of various kinds, both coarse and fine, including-rock, ore, grain, and so forth.

What I claim as my invention, and desire to'harve "secured by Letters Patent, is-

1. The gauge-ring 0, arranged and operating in com- AS. BUTTER. Witnesses:

I. S. PIERCE, G. W. Forums.

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