US305055A - Quartz-crushing machine - Google Patents

Description

(No Mod-el.) 2 Sheets-Sheet 1.

r C. DANDURAND.

QUARTZ GRUSHING MAGHINB.

No. 305,()55. Patented Sept. 16. 1884.

/ E/VTOR A fiorney (No Model.) 2 Sheets-Sheet 2-..

' C. DANDUBAND. QUARTZ CRUSHING MAGHINE. No. 305,055. Patnted Sept. 1 6, 1884.

A fforney Ur-uren TATES PATENT Gretes@ CYPBIEN DANDURAND, OF VIRGINIA CITY, NEVADA.

QUARTZ-CRUSHlNG MACHINE.

SPEC-IFICATION orming part of Letters Patent No. 305,055, dated September 16, 1884-.

Application filed April E& tPF-1. (No model.)

1'0 all whom z' may cancer- :1

Be it known that I. CYPRIEN DANDURAND, a citizen of the United States, residing in Virginia City, in the county of Storey, in the State of Nevada, have invented certain new and useful Irnprovenents in Quartz-Crushing Machines, of which the following is a specification.

My invention rclatcs to inprovenents in quartz-crushin g machines in which the stamps are raised by cams firmly attached to a cylinder and acting upon rollers attached to the stems of the sta-mp5, the stens of the stamps being square.

The objects of ny nvention are, first, by the use of square stems of the stamps to afford a convenient mode of firnly attaching rollers thereto, second, by the use of cams each of which is so divided as to cause the cam to strike the rollers on each side of the stems, to give a steady motion to the machine and allow the use of four rollers to each stem without unnecessarily encumbering the machine; third, by the use of rollers, in combination with the cams, to reduce the i'riction and increase the working power of the machine. I attain these objects by the mechanism illustrated in the accompanying drawirgs, in which Figure l is atop view of the machine. Fig. 2 is a front or end view of the machine, showing the stamps in position. Fig. 3 is a vertical section andasidevicw of thcmachine; and

Fig. 4 is a view of asection of the stern of one stamp with the rollers and the block to which they are attached, the block being firmly attached to the stem.

Similar letters refer to similar parts throughout the several views.

The timber-pieces A A A constitute the framework of the machine. A heavy crosspiece, B, is firmly attached to the frame, and such cross-piece B is pierced with square holes C C, through which the stems of the stampsD D move. i On the sides of the frame of themachine are the bearings G G, in'which rests and revolvcs the aXle N, which runs through the oylinder E and through the frane-work of the machine, and is connected on the outside of the franie with and is the aXle of the pulley H.

block, It,

The smaller pulley K is attached to'the axle k, which is attached to the crank M, and to the crank M is attached the motive power. The smaller pulley, K, revolves the larger pulley, H, with which it is connected by the belt J J. The small roller I, fastened to the frame A A, serves to keep the belt J J in place by means of a flange on the edge of the roller I. Upon the outer surface of the cylinderE is fastened by means of bolts a a a series of cams, F F, the number and size of such cams being regulated by the size of the cylinder Eand the corresponding size of the machine. The cams F F are longitudinally of concave form on their inner and conveX form ontheir outer surfaces,

those parts of the outer surfaces which touch the rollers being nearly parallel with the outer surface of the cylinder, and the sides of such cams are plain parallel surfaces. The end of each cam F farthest from the attachment to the eylinder is divided into two equal prongs, LL,

with a sufficieut opening between the prongs' to allow the prongs in revolution to strike the rollers Q. Q on each side of the stens D D atthe sa me time. The aXle N, which runs through the cylinder E and the pulley H, is fastenedto the cylinder E by spokes f f in the inside of the cylinder, the cylinder being otherwisehollow. To each sten D is firmly attached a and to each block R are attached four rollerstwo rollers on each side of the stem, as in Fig. 4-upon which rollersthe cams F F, in revolving, come in contact and raise the stamps, and upon the continued revolving of the cylinder E and the cams F F, attached thereto, the stamps are released and fall upon the material to be reducedin the receptacleV. The cams are so adj usted on the cylinder E that no two of the stamps fall at the sane time. The shapes of the cams F with the prongs L Land the square stens D D differ from the shapes of the cams or levers and shapes of the stems now in use, and the rollers Q Q, attached to the blocks It R, and the attachment of the blocks RR to the stems D D are new.

The front of the framework of the machine, as appears in Fig. 2, and the top of the machine, as appears in Fig. 1, are entirely open, and back of the stamps D D is a metal partition, T, attaehed to the bottom. of the [rame und to the cross-piece O. The object ot' the partition T is to keep the ore in the front of the machine under the stmnps and convenient for removal When redueed'.

The receptaele V may be made in any eonvenient form for the Working of the st tnps and for the reuovei of the ore. The erosspiece O runs across the machine, and is attached thereto, as in Fig. 2. It strengthens the frameof the machine. 'Po its inner surface is attaohed the metal partitiou T, and through theinner part of this cross-piece O ure Square holes, through which the stens D D move. An iron rod runs through the length of this bean; and serves as the axle of the rollers P P. Suoh rollers PP are for the purpose his CYPRIEN DANDUBAND.

mark. \Vitnesses:

J G. LEGRIS, A. O. LAVIGNE.

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