US578221A - James m - Google Patents

Description

J. M. DODGE. BUCKET ELEVATOR.

(No Model.)

No. 578,221; Patented Mar. 2, 1897.

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JAMES M. DODGE, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE LINK-BELT ENGINEERING COMPANY, OF SAME PLACE.

BUCKET ELEVATOR.

SPECIFICATION forming part of Letters Patent No. 578,221, dated March 2, 1897. Application filed September 3,1895- Serial No. 561,292. (No model.)

.To all whom it may concern.-

Be it known that I, JAMES M. DODGE, a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Bucket Elevators, of which the following is a specification.

The object of my invention is to dispense with the chain-links usually employed in the construction of bucket elevators; and this object I attain by coupling the buckets together directly, as fully described hereinafter, reference being had to the accompanying drawings, in which- Figure 1 is a perspective view of one of my improved buckets. Fig. 2 is a front elevation showing two buckets coupled together. Fig. 3 is a side view of Fig. 2. Fig. i is a section on the line 4 4, Fig. 2. Fig. 5 is a plan view. Fig. 6 is a detached perspective view of one of the side braces. Figs. 7 and 8 are views of modifications of myinvention, and Fig. 9 is a view of one of the side braces before bending.

Heretofore in the manufacture of elevatorbuckets it has been customary to build a chain of a series of links and to secure the buckets to certain of these links, the elevator having either a single run of chain or a double run, according to the method of attaching the buckets to the chains.

By my invention I dispense entirely with the independent links and couple the buckets directly one to another, as illustrated in the drawings.

A is a bucket, in the present instance havin g a back wall a, front incline wall a, and side walls a but it will be understood that the shape of the buckets may vary without departing from the essential feature of my invention. Secured at the corners formed by the back and side walls are angle-plates B, one at each side. The leaf 1) of each angleplate is secured to the side walls a of the bucket by rivets or other fastenings, and the leaf 1) of each plate is secured in a like manner to the back wall a. Thus the. angle-plates form strengthening members of the bucket.

The plates B B extend beyond the bucket both above and below, as indicated in Figs. 1 and 3, and by preference the leaf b is cut some distance from each end, forming portions 12 which are bent over upon the projecting portion of the leaf Z). These end portions of the plate are perforated for the passage of the pivot-bars 0, so that the end portions of the plate act as hinge-pintles.

The bars 0, as shown clearly in Figs. 2 and 5, are simply sections of plain rods reduced slightly in diameter at the points where the buckets hinge, so as to form shoulders which prevent the bar from being accidentally detached, but this construction may be modified, if desired.

The perforations in the buckets for the pivoted bars are of the same diameter as the main portion of the bars, so that the bars can be slipped in place and the slight reduction of the bars is not sufficient to interfere with the proper working of the elevator, but will prevent the lateral displacement of the bars.

The back plate of each bucket extends above the top of the bucket, forming a shield a which prevents th e material accumulating between the top of the bucket and the pivotbar C when the buckets are being discharged.

It will be seen by bending the sections 19 and 5 onto the portion 1) of the angle-plate B that I increase the bearing-surface of the buckets and thus extend the life of the pivotbars without materially increasing the cost of construction.

The pivot-bar may be reduced to form the groove by turning or the groove may be formed by compression, as a very small shoulder is required to prevent the accidental displacement of the pin.

In some instances the extension may be formed directly on the plates of the bucket, and I have shown in Fig. 7 one form where the bearings are simply extensions of the back plate, the plate being cut and bent as indicated.

In some instances the project-ions may be on one end only of each bucket and the pivotbar may pass through the projections and through the bucket, as shown in Fig. 8, but I prefer the construction shown in Fig. 1.

I claim as my invention- 1. The combination in an elevator-bucket, of the body, perforated projections at each side and extending above and below the body,

said projections being increased in thickness at the perforations, substantially as and for the purpose set forth.

2. The combination in an elevator-bucket, of the body, the angle-plates secured at the corners formed by the back and sides of the body and extending above and below the bucket, substantially as described.

3. The combination in an elevator-bucket, of the body, an gle-plates at the corners formed by the back and sides of the body, said angleplates extending above and below the body, and a portion of the back section on each angle-plate being bent over upon the side portion so as to form a double bearing for the pivot-bars, substantially as described.

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