US1044596A - Crusher. - Google Patents

Description

- T. J. STURTEVANT.

GRUSHER.

APPLIOATIOH FILED MAY 28, 1912.

Patented NW. 19, 912.

' flomem T. J. STURTEVANT.

GRUSHER.

APPLICATION FILED MAY 28, 1912.

Patented Nov. 19, 1912.

3 SHEETS-SHEET 2.

Alforneyg T. J. STURTEVANT. GEUSHBR.

APPLICATION rum) MAY 20, 11112.

L@44,,596 Patented Nov. 19, 1912.

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I Q [NV-'ENTOR: 5L M- m wes difierent srmag THOMASJ'OBEPH STUBTEVANI, OF WELLESLEE', KLS8AOHUSIT'I'S,

Assienoa 'ro STUBTEVANT mt COMPANY, A=GORPQRLTION O3 Y cansmn To all whmn'c't may concern:

Beit known that I, Tnoms J. S'rmrrnvan'r, a citizen of the United States, residing at wellesley, and State of Massachusetts, have invented or discovered certain new and useful Improvements in Crushers, of which the following is a specificatiomreterence being had therein to theaccompanying drawings.

, lhis invention relates to certain improvements in that class of crushers coverfi by U. S. Patents No. 588,618, August12i, 189?, No. 607,575,'July 19, 1898, and No. 777,227, December 13, 1904, and has for its object to provide a crusher of this class which, on account of its accessibility for cleaning and convenient adjustahility for ades of output, is more esnecially suitable or laboratory work.

in carrying the present invention into ettoot the fixed or normally stationary anvil l is niounted m a head-block which 18 lunged to the frame of the machine 111 such a mannor that it may be swung aside horizontally or opened out like a door, so that both of the Jaw plates, as well as the side plates or shields oi the crushing chamberlor receptacle, will be readily accessible for cleaning. The hinged or swinging head-block, carrying the anvil jaw, is locked in working position by means of a hinged side late constructed to engage the said hea block in such a manner asto hold the latter ri 'dly in place, said side plate and head-bloc being locked together, when the parts are in their operative positions, by a suitable latch and set screw. The said anvil jaw, andto which the normally stationary jaw plate 1s secured-is preferably hung on the swinging head-block by a pivot near the u per end of the said jaw, the lower part the latter abutting against the heads of screws which may be turned to vary the position oi this jaw relative to the rocking j aw, for the purpose of regulating the fineness of the output of the crushing mill or crusher suitable convenient means being provided raw turning the screws for the purpose of efiiecting the adjustment referred to.

In the accompanying drawings Figure l is a perspective view of the improved crusher. Fig.- 2 is a central longitudinal section thereof. Fig. 3 is a. front end. view thereof with the side plate and head block in the county of Norfolk which coiiperates with their-coking jaw,

ofexu or swung aside for the convenient c caning of the parts. his a partial Elan v1ew illustrating the-swinging head look and side plate and their flocking connectlons. Fig. 5 is a detail sectional view showing one of the screw's'for. varying the worlnng position of pivfotally mounted anv l yaw. Figs; 6 and 'l, are detail views illustrating the gearing forkgturning the ad.

justing screws. y

Referrin to the drawings, 12 denotes the frame in w ich is mounted theidfiving shaft 13 provided with suitable. fly wheels or ull eys 1t and carrying an eccentric 15 whic is goined by the connectingrod 16 with the rocking-jaw frame 1'? by means of the in 18. 'lhe rocking-jaw flame 17 is suspended by means of said connecting rod '16 and a link or links 19, said link or links loosely connecting the forward end of, said rocking rat ateafiqvfne, 191a.

jaw frame with the frame ofl the machine through the pivot pins or jointspf the said link or links. The rear end of the rockingjaw frame 17 is braced against theframe 12 by means 01E toggles 20, and is also provided with a pull-bat: rod 21 and coiiperating spring 22, as in the machines of the patents hereinbetore referred to.

The normally fixed or anvil jaw 23, 006perating with the rocking jaw 33, is mounted in a right angular head-block 24 which is attached to the machine frame by means of a vertical pivot-pinfl, the said head-block being held in its working position'by means of a hinged side-plate 2b mounted on a vertical ivot-pin 27 and having a hooked portion 8 which engages in a suitable recess in the head-block, tor the purpose of holding the latter. in place; lhe said hinged side plate is locked to the head-block by means of a ll-shaped latch 29-pivoted to the said head-block and overlappm a projection 30 in the said side plate, sai latoh'being secured in place by means ot a screw 31 en gaglrg said projection and provided with a ban iently turned. The hinged headblock 2 2 and the hinged side plate 26 adord two pivoted or swinging door-like parts which form, when closed, the sides of thecrushing chamber, each of said parts being preferably provided with a remfivable side-plate 43.

The anvil jaw 23 is hinged near its upper end to the head-block 2t by means oi a pivotnin 3t, thelower part of said jaw wheel 32 by which it may be convenresting against the heads of screws 35 aganist which it is urged 'bya coil spring 36 interposed between a horizontal part of said block and a stationary part of the machine frame. Rotating on the screws 35 are gear nuts or plnions 36 meshing with an intermediate pinion 37 attached to a shaft 38 provided witha hand wheel 39 by which the said shaft 38 may be turned, for the purpose of adjusting the screws 35. The adjustment of the screws 35 serve to move the normally stationary jaw 23 toward or from the rocking jaw 33 for the purpose of regulating the output of the crusher. The said screws 35 are locked by a cross rod or wire 40 which will prevent them from turning, and they will therefore be moved endwise when the pinions thereon are rotated. The jaws 23 and 33 are provided with removable jaw plates 41 attached thereto by locking'pins 42, as in crushers of this class previously in use.

From the foregoing it will be understood that when it is desired to clean the jaw plates and the side plates or shields of the chamber or receptacle in which the material is cruslied, the screw 31 on the latch 29 will be released from the projection on the side plate 28, by turning the hand wheel 32 on said screw; and when said latch is swung aside the said side plate 28 will be released so that it may be opened outward, thus releasing the head-block 24 which may then be swung aside or opened outward so that the parts will be in convenient position for thoroughly cleaning the jaw plates and the side plates or shields of the crushing chamber. Such cleaning operation is frequently necessary in laboratory work, owing to the nature of such work in changing to difierent materials or samples. Also in laboratory work it is frequently desirable to vary the degree of fineness of the output of the machine by varying the relative working 5 positions of the crushing jaws, and this may readily be efiected, in this improved machine, by turning the screws through the medium of the hand wheel 39, the shaft 38, and the pinion gearing connecting said shaft with said screws. Having thus. described my invention claim and desire to secure by Letters'Pat-.

ent:

1. In a crusher, a normally fixed or stationary jaw and a vertically pivoted headblock or support On which the said jaw is mounted so that said head-block or support may be opened outor swung aside for con? I venient access to the crushing parts or chamher, combined with means for securing said head-block in working position.

2. In a crusher, a normally fixed or stationary jaw and a vertically pivoted headblock or support on which the said'jaw is mounted so that said head-block or support may be opened out or swung aside for convenient access to the crushing parts or chamber, combined with a hinged side plate and locking means by which said head-block may be secured in working position.

3. In a crusher, a normally fixed or stationary jaw and a vertically pivoted headblock orsupport on which the said jaw is mounted so that said head-block or support maybe opened out or swung aside. for convenient access to the crushin parts or chamber, combined with means or securing said head-block in working position, said jaw being pivotally mounted on said headblcck, and adjusting means by which the position of said jaw may be varied.

4. In a crusher, a normally fixed or stationary jaw and a head block or support ,on which the said jaw is pivotally mounted, combined with adjusting screws by which the position ofsaid jaw may be varied, gear nuts adapted to turn on said screws, a pin ion connecting said gear nuts, means for turning said pinion, and means for locking said screws from turning so thatthey will be moved endwise when said gear nuts are turned. I v

5. In a crusher, a normally fixed or stationary jaw and a head block or support on which the said jaw is pivotally mounted, 5 combined with'adjusting screws by which the position of said jaw may be varied, gear nuts on said screws, means for turning said gear nuts, and a spring, acting on said pivotally mounted jaw and serving to hold the free end of the latter against said screws.

6. In a crusher, a normally fixed or stationary jaw and a head block or support on which the said jaw is pivotally mounted, combined with adjusting screws by which the position of'said jaw may be varied, gear nuts on said adjusting screws, means for locking said screws when said gear nuts are turned, and a shaft provided with a hand wheel and carrying a pinion meshing with said gear nuts.

7. In a crushing machine, the combination'with a movab e jaw, of a normally stationary anvil jaw mounted on a vertically pivoted part so that it may be swung aside 11. for cleaning. v

8. In a crushing machine, the combination with a movable jaw, of a normally stationary anvil jaw mounted on a vertically pivoted part so that it may be swung aside for cleaning, said anvil jaw being pivotally attached to the part on which it is mounted, so that it may be adjusted toward and from said movable jaw. a

9. In a crusher, the combination with the frame thereof, of two vertically pivoted or door-like parts at the front end of said frame and both of which parts are adapted to be opened or swung aside, an anvil jaw mounted on one of said vertically pivoted W or door-like parts, and means for locking the said parts together.

10. In a crusher, the combination with the frame thereof, of two vertically pivoted or door-like parts at the front end of said fragne and both of which parts are adapted to be opened or swung aside, an anvil jaw mounted on one of said vertically pivoted or door-like parts, and means for looking said parts together, said locking means comprising a swinging latch mounted on 1 one part, and adapted to engage a projection on the other part, a screw for securing said swinging latch in place, and a hand wheel for turning said screw.'

- 11. In a crusher, the combination with the frame thereof, of two pivoted d0or-1ike parts at the front of said frame and both of which parts are adapted to be opened or swung aside, each of said door-like parts gar'rying a side plate. of the crushing cham- 1?. In a crusher, the combination with the frame thereof, of two pivoted door-like parts at the front of said frame, and both of which parts are adapted to be opened or swung aside, one of said door-like parts forming the anvil jaw, and the said doorlike parts, when closed, forming the sides of the crushing chamber.

In testimony whereof I afiix my signature, in presence of two witnesses.

THOMAS JOSEPH STURTEVAN'P.

Witnesses:

L. H. STURTEVANT, W. H. Ems.

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