US531734A - Hoisting-bucket - Google Patents

Description

(No Model.)

T. P. MOORE.

HOISTING BUGKET.

No. 531,734. Patented Jan. 1, 1895.

WW Inventor.

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UNTTED STATES PATENT @rrrcn.

THOMAS F. MOORE, OF BUFFALO, NElV YORK.

HOlSTlNG-BUCKET.

SPECIFICATION forming part of Letters Patent No. 531,734, dated January 1, 1895.

Application filed July 14,18 94. Serial No. 517,519. (No model.)

To all 1072,0122 it may concern..-

Be it known that I, THOMAS F. MOORE, a citizen of the United States, residing at Buffalo, county of Erie, and State of New York, have invented a new and useful Improvement in Hoisting-Buckets, of which the following is a specification.

This invention relates more especially to the hoisting buckets which are employed in connection with hoisting and conveying apparatus for digging sewer trenches and which are provided with a hinged bottom.

The principal object of my invention is to provide the bottom of the bucket withasimple lock or latch which is easily operated and which presents no projecting parts on the out side of the bucket that are liable to catch against objects and prematurely release the bottom.

A further object of the invention is to improve the construction of the hinges which connect the bottom with the bucket.

In the accompanying drawings: Figure 1 is a sectional perspective view of my improved hoisting bucket. Fig. 2 isabottom plan view thereof. Fig. 3 is a sectional elevation of the upper portion of the lock and the adjacent portions of the bucket, on an enlarged scale. Fig. i is a similar View of the lower portion of the lock. Fig. 5 is a longitudinal section, on an enlarged scale, of one of the hinges of the bottom.

Like letters of reference refer to like parts in the several figures.

A represents the body of the bucket, which is preferably constructed of sheet metal and reinforced at its upper end by a band a.

Bis a horizontal stay-bar connecting the side walls of the bucket near the upper edge thereof, and B is a similar stay-bar connecting the side walls near the lower end of the bucket. These stay-bars are preferably constructed of wrought iron and their end portions are split vertically and spread in the form of angular lips or flanges b which are riveted to the inner sides of the side walls, as shown in Fig. l.

h is an eye secured to the upper stay-bar for receiving the hook of the usual fallblock.

G is the bottom which is hinged at one edge to the lower end of the bucket, and D is a U- shaped cleat or stifiening bar secured to the under side of the bottom and consisting of angle iron.

0 represents the perforated knuckles of the hinges which are secured to the body of the bucket and c the hinge pins.

The base flange of the angle iron D is cut away adjacent'to the knuckles 0 while the other or vertical flange of the angle iron projects beyond the adjacent edge of the bottom so as to form the hinge members or knuckles of the bottom. The knuckles cl are preferably reinforced by bars or plates d riveted to the inner sides thereof and the latter and the knuckles are provided with openings for the passage of the hinge-pins, as shown in Fig. 5. By thus combining the knuckles of the bottom with the cleat a strong and reliable hinge connection is obtained which is comparatively inexpensive.

The lock whereby the hinged bottom is held in its closed position consists of an upright rock shaft E arranged within the bucket and having at its lower end a toe or laterally projecting latch e which engages in a horizontal loopf secured to the upper side of the hinged bottom near its free edge, as shown in Figs. 1 and 4. The rock shaft E is journaled in bearings which are preferably formed partly by the recesses e at the junction of the staybar flanges B and Band partly by the adjacent side walls of the bucket, as shown in Fig. 1, whereby separate bearings for the shaft are dispensed with and the cost of the bucket is reduced. The upper endof the rock shaft projects above the upper edge of the bucket and is made square or flat-sided to receive a detachable wrench or hand lever G for turning the shaft. Vertical displacement of the rock shaft is prevented by a screw-nut h applied to an external screw-thread formed on the projecting portion of the shaft, below its square end, and abutting against the upper side of the adjacent stay bar B. This nut, while permitting the shaft to turn freely, enables the same to be adjusted vertically for properly registering its locking latch with the loop of the hinged bottom. Upon giving the rock shaft a sufficient turn, the toe at its lower end is withdrawn from the loop of the bottom, thereby allowing the latter to swing open and discharge the contents of the bucket. After locking the hinged bottom and before again lowering the discharged bucket, the wrench of the shaft is removed so as not to obstruct the movements of the bucket.

'i are stops formed of angle iron and secured to the inside of the bucket at the corners near the bottom and against which the bottom of the bucket abuts upon closing the same.

The loop of the bottom is preferably arranged obliquely or" at an angle to the side wall of the bucket, as shown in Fig. 1. By this arrangement the space between the front end of the loop and the adjacent side wall of the bucket is widened, thus enabling the toe of the rock shaft to push aside any hard obstruction that may lodge between the loop and the side wall and insuring the free operation of the lock.

By constructing the lock as herein shown and described, its parts are all located inside the bucket and the lock, therefore, offers no projections which by catching against surrounding objects are liable to cause unlocking of the hinged bottom and allow a premature discharge of the buckets contents, or which are liable to strike parts of the conveying car or other apparatus and interfere with the movements of the bucket.

I claim as my invention 1. The combination with a hoisting bucket provided with a hinged bottom and having one of its upright walls provided with internal shaft bearings, of a horizontal loop secured to the upper side of the hinged bottom near the outer edge thereof, and an upright rock shaft journaled in said bearings, extending to the top of the bucket and provided at its lower end with a lateral toe engaging with the loop of the hinged bottom, substantially as set forth.

2. The combination with the bucket having cross stays provided with split end portions forming flanges which are secured to the Walls of the bucket, of the hinged bot tom having a loop, and an upright rock shaft journaled in the recesses formed between the split end portions of said stay-bars and the adjacent wall of the bucket, and having at its lower end a toe which engages in the loop of the hinged bottom, substantially as set forth.

Witness my hand this 26th day of June, 189i.

THOMAS F. MOORE.

\Vitnesses:

Jno. J. BONNER, CARL F. GEYER.

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