US566088A - Stone-breaker - Google Patents

Description

(No Model.)

A R. MOCULLY.

STONE BREAKER. f

Patented Augv.w18, 1896. Y

i UNITED STATES PATENT QFFICE.

ROBERTinaccur, or PHILADELPHIA,PENNSYLVANIA.

STONE- SPECIFICATION forming partof Letters` 566,088, dated August 18, 1896.

Application had septemterir; rest.: serai Nt. 213,797. or@ model.)

. new and useful Improvements in Stone- Breakers, of which the following is a specification, reference being had therein to the accompanying drawing, wherein'the figure is a vertical section, partly A in elevation, of a stone-breaking and ore-crushingmachine'embodying my improvements. My invention has relation to crushingmills having gyratory shafts and Crusher.- heads, having particular reference to the form. of mills shown and described in Letters Pat-V ent of the United States issued to me on the 7th day of September, 1886, Nos. 348,7 57 and 848,758; and it has for its object the construction and combination of parts to increase the efficiency and durability ofthe mill. Q

` My invention accordingly consists of the combination, construction, and arrangement of parts, as hereinafter described and claimed; VIn the drawing, A represents the frame or casing ofthe mill, comprising a bottom plate B, chute or outlet chamber C, crushing-cham# ber D, and top plate E through which the ore or material is fed into the crushing-chamber D.

F indicates the gyratory shaft; G, the crush-` er-head mounted on said shaft and located within the chamber D.

In the top plate Eis a bearing or opening e, having a cap or cover e suitably fastened thereon. This bearing or opening is provided with vertical grooves e2, in which are inserted bolts epassingup through the top plate e/,and these bolts are provided with adjusting-nuts or other equivalent devices e4. Upon the heads e5 of bolts c3 rests a continuous or solid sleeve e, which has a bore tapering downwardly, as shown. Within this bore is a bushing c7, preferably made in sections and having inwardly/-projectin g top flanges e8 with concave under sides e9 to conform to the rounded end f of the head f of shaft F. The outside ofthe bushing e7 has a taper correspending to that of the bore of the sleeve e, and is held to its position or bearingwith sleeve e and shaft-head f by a set-screw'elo,

which passes through the cover or cap e', as

j shown. As the shaft-head f and bushing e7 Vwear, the nuts e4 are adjusted to raise the 'sleeve `e6 and draw or move the sections of bushing e7 together, or in close bearing with said parts, to compensate for such wear. The working faces d of the crushing-chamber have but a single taper or incline in the same be composed of sections, as shown, or otherwise constructed asr desired. These Working faces, as shown, have their lower edges resting upon the top surface of the chute-chamber C and near their upper edges are provided with a lug entering a corresponding recess in the walls of chamber D.

The Crusher-head Gis composed of a sleeve has two workingfaces g g2, reversely tapered. The taper of face g2 corresponds to that of the j crushing-faces d of chamber D, so that the `faces g' act to break the material fed into .chamber D and the faces g2 to successively grind or crush said broken material.

Surrounding the opening c in the top c' of chute-chamber C is an elastic protector H, which is preferably made of rubber or leather. It is composed lof an upper thick hub h, surrounding and hugging shaft F of alower like hub h', having a shoulder h2, which is sprung into and preferably loosely fits an annular slot in a iange c2, surrounding opening c, and of a thin curved part h3, joining the hubs h 71,', so that it may revolve with the shaft and give to it vertical movement when adjusted. Said 'protector H with its hubs h and h and thin curved part h3 is made in one piece preferably.' Between the shaft F and its drivingwheel L is another protector I, of a construction similar to that of protector H, or it is composed of an upper and a lower hub t' and fi', respectively, joined by a thin curved part i2. Its lower hub t" is, however, fitted into a grooved sleeve 3, loosely mounted upon wheel L and held in place by a cap or plate 4. The sleeve i3 and plate 4 for the lower hub t' of protector I are provided to prevent undue wear of said hub z' by the rotation of Wheel L, but as said protector I may be connected to wheel L in various ways I wish it to be understood that in this application I broadly claim a protector having upper and lower hubs united by an intermediate thin curved part,

direction from top to bottom, and they mayv g, suitably cast or mounted on shaft F, and

ICC

between a fixture of the breaker and the gyrating shaft.

The wheel L is provided with a sleeve l, having an eccentric bore, and the bottom plate B has a bearing b, having oil-gutter and sediment-chamber b/ and ducts b2 b3, as fully described and claimed in applications filed of an even date herewith, Serial Nos. 213,795 and 213,796. The bottom of shaft F is provided with a removable cup or semispherical bearing k, and /c is a like bearing on a loose or removable bottom b4 for bearing b, for the knuckle or toggle lever step-bearing P. The removable socket-bearings 757s are provided so as to admit of easy replacement when worn out. The bottom or plug b4 is preferably hollow or tubular in form and is provided with a stuffing-box b5 and a dripcock h6 to drain off the oil from bearing Z9 when desired. To facilitate this draining,an oil-duct 7a2 is formed in bearing 7d. The bottom b4 rests upon a plate m, which is held in lposition by screws or bolts m', the heads m2 of which have their bearing in the bottom of oil-gutter b', and the bolts pass down through vertical openings in the sides or walls of bearing b, through apertures in plate m, and have adj Listing-nuts or equivalent devices m3, which are manipulated or turned to raise and lower the shaft and crusher -head for varying the degree of iineness of the output or for other purposes. Whenever the shaft F is so adjusted, its top bearing or bushing @.7 must be correspondingly adjusted, as above described. Previous, however, to making any vertical adjustment for raising shaft F the set-screw e10 is raised to admit of such adjustment, as this screw is always set to prevent the shaft from rising or jumping up while operating.

The head f of the shaft F may be of any suitable conguration, but I prefer to make it cylindrical with a rounded top f, as shown, to avoid rubbing or grinding friction between it and bushing e7.

It will be noted that the top shaft-bearing and its adjusting devices do not support the shaft, such support being solely effected by the step-bearing of the shaft.

The bottom b4 being tubular or hollow collects all the sediment and waste dripping into it from the parts in bearing Z9 and the working parts above are immersed in pure or good oil.

The advantage of using the toggle P in connection with the adjustable supporting devices for the upper end of the shaft is that said devices take the weight of the shaft and Crusher-head off of the toggle. Hence there is less friction at the bearings of the toggle, and as it is directed at an angle away from the grinding or working side of the crusherhead the same is free to assist in keeping the Crusher-head to its work, as fully described in pending application of even date herewith, Serial No. 213,795.

In application Serial No. 213,795 I have' shown and claimed a specific form of removable and adjusting screw-bottom, which differs from that herein described in that the lower bearing k for the toggle is integral with or fLXed on said bottom, which is shown as being solid,with an oil-duct running through it, which duct is not a sediment-chamber. In this application I broadly claim a removable and adjustable bottom b4 irrespective of its construction with bearing for the lower end of toggle P, and also a hollow or sedimentchamber form of said bottom or plug and the combination therewith of a stuffing-box.

In another application, filed December 1, 1336, Serial No. 220,329, I have shown and claimed a specific form of screw-bottom or plug serving as a sediment-chamber.

I do not herein claim the combination of a gyratory shaft and its driving-wheel eccentric bore or bearing, the toggle P engaging the lower end of said shaft and so situated that it always points away from the most eccentric portion of the said wheel bore or bearing to cause said toggle to incline constantly toward that part of the Crusher-head which is in action, as the same is broadly claimed in another application of even date herewith, Serial No. 213,795.

In still another pen ding application of even date herewith, Serial No. 213,796, I have described and claimed a sleeve-bearing with adj usting devices combined witha set-screw for the top of the shaft, and I do not herein claim the same broadly, but only specifically as set forth in the claims.

Vhat I claim is- 1. In a gyratory stone-breaker,the combination of the gyratory shaft, having the straight vertical-sided cylindrical head, f',of the semispherical-formed top, f, adapted to conform to the inner or bored faces of the flanges, e8 es, of the sectional tubular bushings, the said sectional tubular bushings, e7 el, inclined on their outer faces, from above downwardly, the tubular sleeve, e6, surrounding the said bushings, provided on its inner side with the tapering face, inclined from above downwardly, adapted to fit the outer faces of the said bushings, the top plate, E, having the bearing, or central hub, e, for the said tubular sleeve, e6, and raising, lowering and adjusting means, substantially as herein shown and described.

2. In a stone-breaker,the combination with shaft F, of driving-wheel L, protector I having upper and lower hubs z' and z" and thin curved part i2 uniting said hubs, a loose ring 3 on wheel L and fitting one of said hubs, and an annular plate 724 on wheel L engaging ring substantially as set forth.

3. In a stone-breaker the combination with shaft F having driving-wheel with eccentric bushing of knuckle or toggle step-bearing P, tubular bottom h4, plate m, and adjustingbolts m', substantially as set forth.

4:. In a stone-breaker, the combination of shaft F, having driving-wheel with eccentric IOO IIO

bushing adjustable tubular bottom b4, means for securing said bottom in place removable socket-bearings la k' and knuckle or toggle P, substantially as set forth.

5. In a stone-breaker, the combination of shaftF, having driving-Wheel with eccentric z bushing adjustable bottom b4, means for securing said bottom in place the latter having oil channel or drip be, removable socket-bearings lc la', the latter having channel k2 and knuckle or toggle P substantially as set forth.

6. In a stone-breaker the combination of gyratory shaft F, the knuckle or toggle P socket-bearing plate 7s having passage k2 and tubular bottom b4 serving as a sediment-chamber and adjusting mechanism for said tubular bottom.

7. In a stone-breaker the combination of bottom plate B, having well b, the shaft F,

` tubular step-bearing b4,a socket-bearing plate k' at the top of bearing b4, adjusting mechanism for the latter and a knuckle or toggle P between said shaft and plate k' substantially as set forth.

`8. In a stone-breaker the combination of bottom plate B having well b, adjustable tubular step-bearing b having stufIing-box b5, the bearing k' having passage k2 gyratory shaftF and knuckle or toggle Pbetween shaft F and bearing b substantially as set forth.

9. In a stone-breaker the combination of a gyra-tory shaft, driving mechanism for said shaft, a bottom plate B having a well b, perforated bearing-plate lo a removable and adtor I having hubs i' il rigid curved thin part` t2 between said hubs, and hub c" having a swiveled ring secured to it substantially as set forth.

12. In a stone-breaker the combination of a shaft, devices for gyratin g said shaft, a flexible or elastic protector composed of top and bottom hubs and intermediate rigid curved thin part, one of said hubs engaging the shaft and the other having a swiveled connection with a fixture of the breaker, substantially as set forth.

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

ROBERT MCCULLY.

IVitnesses:

S. J. VANSTAvoREN, CHAs. F. VAN HORN.

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