US703461A - Ore crusher and pulverizer. - Google Patents

Description

No. 703,46I. Patented luly I, |902.

- A. J. PETTER.

OBE CBUSHEB AND PULVERlZER.

(Application filed Aug'. 22, 1900.)

(N0 Model.)

- prospecting purposes,

UNITED STATES PATENT OFFICE.

ORE CRUSHLE'R'AND PU LVERIZER.

SPECIFICATION forming part of Letters Patent No. 703,461, dated July 1, 1902.

Application filed August ZZ, 1900. Serial No. 27,715. (No model.) y

To a/ZZ whom it may concern:

Be it known that I, ADoLP'H J. PETTER, a citizen of the United States, residing in the city and county of San Francisco, State of California, have invented certain new and useful Improvements ink Ore Crushers and Pulverizers; and I do hereby declare the following to be a full, clear, and exact description of the same.

The presentinvention relates to a certain new and useful ore crusher and pulverizer for use in connection with laboratories or for prospecting purposes; and it consists in the arrangement of parts and details of construction, as will be hereinafter fully set forth in the drawings, and described and pointed out in the speciiication.

The objects had in View are to provide a simple and eifective machine which may be readily transported from place to place and by means of which the ore maybe either crushed or pulverized or by means'ofvwhich the combined action of crushing and pulverization of the ore may be obtained, to provide a chine especially adapted for laboratory or and to provide a mav chine which may be readily taken apart and its wearing parts readily adjusted to compensate for wear.

In order to comprehend the invention, ref.A erence must behad to the accompanying sheet of drawings, wherein- Figure 1 is a vertical sectional view of the machine in side elevation; Fig. 2, atopplan view of the machine; Fig. 3,-a detailview of the die or wearing ring, and Fig. 4 a similar view of the trough lfor receiving the discharged ore.

In the drawings the letter Ais used to indicate the base or platform upon which the machine rests or is supported. To this .base or platform is secured, by nut a, the vertically-extending spindle A2, which spindle at its upper end carries the cone-shaped crushing-head B. Integrally secured to the head B is a depending convexed or spheroidal shell B, which shell at its lower edge is provided with the inturned depending iange B2. This iiange B2 rests upon the upper face of the base or platform A and serves as a support for the convexed or spheroidal shell B'. In the present instance the head B and the shell B are secured tothe spindle A2 through the medium of a screwfthreaded connection A3. Instead of vforming the head and shell integral, as hereinbefore described, it will be obvious that such members may be formed independently, in which event the head will be provided with a lower reduced portion ct, adaptedv to fit a hub or enlarged portion b on the shell, the two being rigidly secured to-l gether by means of a nut B3. (All shown in dotted lines, Fig. 1.) The stem A2 may in some instances be formed integral with either the head or shell. Over the shellB is fitted the concaved shell C, which shell is formed with an upwardly-inclined hopper C'. The shell C eX- tends slightly below the center @tof the shellB', and this portion of the shell is slightly oiset, as shown at d, in order to provide a seat d' for the die or wearing ring C2. This die or wearing ring is a split one and is held in place by the upturned iianged end d2 of the adjustingbolts C3, which bolts pass through the offset portion d ofshell C. The adjusting-bolts are held invplace by the nuts g, secured upon the screw-threaded portions thereof. It will be observed that'the upper edge g' of the die or wearing ring is formed at an incline in order to correspond with the inclination of the offset portion of the shellC and permit of the ring registering therewith. The face of this ring belowthe center line of the shell B' is made straight, as shown at g2; soasto permit o'fthe shellC oscillating upon shell B without binding, which otherwise it could not do, as'thediameter of shell C at its lower edge would'be lessthan that of shell B at w.

The shell C is held upon shell B by means of the spider E, the arms 1 2 3 of which engage the upper edge of hopper C'. The spider fits loosely upon the stem E', screwed into and upwardly projecting from head B, and is held down by spring E2, which spring surrounds the stem E and is and collar F. There is interposed between the spring and collar F a washer F/, which washer is held to the collar by a swivel con.- nectionf. The collar is provided with the upwardly-extending slotted shoulders f', between which work the eccentric cams F2; These cams bear upon collar F and are connected to the bifurcated end of lever F3. This lever straddles the upper end of stem E and is held between the spider IOO held in place by the bolt f2, which bolt passes through the slotted shoulders f of collar F and rests within the inclined sloth, cut in the upper end portion of stem E'. By means of this cam-leverthe spring Ezis compressed orreleased. The arms l 2 of the spider are slightly shorter than arm 3. Consequently the hopper C stands eccentrically to the head B. Being thus held, a gyratory motion is imparted to the hopper C and its shell C as the hopper is rotated. To the hopper are connected the arms G, the ianged ends 7L ofwhich twithin the sockets h2 of the hopper.

Within the inner face of the hopper are formed a series of vertical grooves 7c, within each of which is fitted a rib 7c. A series of vertical grooves 7a2 are formed in the face of the head B, and in each groove is itted arib 7c3. It will be understood that the face of the hopper and of the head may be corrugated, if so desired; but I prefer the inserted ribs, as they may be removed at any time in case of excessive wear and new ones inserted in lieu thereof".

The ore fed into the hopper is crushed by being pressed against the cone-shaped head during the gyratory motion of the hopper, which is actuated in the present case by the operator exerting pressure alternately upon the handles or arms G. As the ore is crushed or broken it gradually works downward toward the shells and passing therebetween is gradually pulverized bythe action of shell C upon shell B. As discharged from between the shells it falls into the ore-receiving trough K, located thereunder.y This trough is circular in form and the free ends thereof overlap. Preferably the trough is made vof rubber; but this is immaterial, as the same may be made of any suitable material.

In case of wear upon the die-ring it is only necessary to remove the same from` its seat and file or cut away a portion thereof at its joint. This shortens or reduces the length of the ring, and hence its diameter, when joined or forced together by being drawn to its seat by the adjusting-bolts.

To remove the upper-shell and hopper, the cam-lever is thrown upward and then drawn outward in order to remove its transverse pin or bolt from within the slot of stem E'. \Vhen thus released, the spider and connecting parts maybe lifted olf the said stem. The hopper and its shell are then free to be raised from off of shell B.

Having thus described my invention, what I claim as new, and desire to secure protection in by Letters Patent, is-

l. In an ore crusher and pulverizer, the

combination with the cone-shaped crushingsecuring the same to the the machine, a spheroidal and depending from the inclined hopper surroundhead, of means for base or platform of shell secured to crushing-head, an

ing the crushing-head, means by which a g fratory motion is imparted to said hopper, a spheroidal shell'depending from the hopper, which shell surrounds and works upon the shell of the crushing-head, a die-ring having a smooth periphery secured to the inner face of the outer shell at its lower edge, and of devices for adjusting the die-ring.

2.. In combination substantially as described, superposed crushing-shells one of the same having an offset portion adjacent its lower end, a wear-ring inserted in said oiiset portion from the lower end of the shell having a smooth surface disposed toward said oset portion, and means for adjusting the ring.

3. In combination, substantially as described, superposed Crushers, one of the same having an offset portion having an inclined upper wall, a split wear-ring inserted in said offset portion having a correspondingly-inclined upper edge, and means for causing the inclines of the ring and offset portion to engage and adjust the ring relative to the grinding-surfaces.

4:. In combination, substantially as described, a head; a shell depending from the head; a second shell mounted on the outside of said first-mentioned shell; and means for regulating the pressure of one shell upon the other comprising a stem 011 the head, a spider slidable on the stem engaging the edges of said outer shell, a spring bearing upon the spider, and a cam-lever at the end of the stem bearihg upon the spring.

5. In combination, substantially as described, a head; a shell depending from the head; a second shell on the outside of said first-mentioned shell; and means for regulating the pressure of one shell upon the other comprising a stem on the head, a spider slidable on the stem engaging the edge of said outer shell, a spring seated upon the spider, a swivel-bearing for the upper end of the spring, and means at the end of the stem adapted to press upon the swivel-bearing.

6. In combination, substantially as described, a head; a shell depending from the head; a second shell on the outside of said first-mentioned shell; and means for regulating the pressure of one shell upon the other comprising a stem on the head, a spider slidable on the stem engaging the edge of said outer shell, a spring seated on the spider, a bearing for the upper end of the spring, slotted ears on the bearing, and a cam-lever atthe end of the stem working in the slotted ears adapted to press upon the spring-bearing to tension the spring.

In witness whereof I have hereunto set my hand.

ADOLPII .I. PETTER. Witnesses:

N. A. AoKER, D. B. RICHARDS.

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