US1741123A - Conveyer bucket and means for closing the same - Google Patents

Description

Dec. 24, I 929.

A. C. BENNETT CONVEYER 1,741,123 BUCKET AND MEANS FOR CLOSING THE SAME Filed Oct. 21. 1925 2 Sheets-Sheet 1 attozn ug Dec.

Wit u come 24, 1929. A. c. BENNETT GONVEYER BUCKET AND MEANS FOR CLOSING THE SAME Filed Oct. '21. 1925 2 Sheets-Sheet 2 attorney Patented Dec. 24, 1929 UNITED STATES PATENT OFFICE AZZEL C. BENNETT, 01E HUDSON, NEW YORK, ASSIGNOR TO GIFFORD-WOOD COMPANY, OF HUDSON, NEW YORK, A CORPORATION OF NEW YORK Application filed October 21, 1925.

Serial No. 63,938.

This invention relates to a bottom-, sides of the aw 10, two triangular link plates dumping bucket, adapted to be used as part of a trolley bucket conveyer, traveling crane or the like for handling coal, or other simi- .lar fluent orsemi-fluent material.

The general object of the invention is to provide a bucket of this type, which is strong and durable and positive in its operation, which can be easily controlled by a single line, and which can be automatically closed and latched, and tripped and dumped, simply by raising and lowering.

The specific construction of one embodi- .ment of the invention and some of its advantages will be described in detail in connection with the accompanying drawings, in which Figure 1 is a side elevation showing the bucket open as it approaches filling position, and .also the chute and the bucket-guiding means.

Figure .2 is a side elevation of the bucket with the bottom closed and locked.

Figure 3 is a rear elevation of the bucket.

Figure 4 isa vertical longitudinal section.

Referring specifically to the drawings, the bucket has a body 5 of strong and rugged construction, open at the top and capable of being opened at the bottom. The bucket is carried by a pivoted bail '6, having a yoke 7 connected thereto, in which is mounted a sheave 8 through which the bucket supporting cable 9 passes. It will be understood that the-cable 9 isoperated by an engine to raise and lower the bucket, and that another cable (not shown) is also poweractuated to cause the bucket to travel from place to place along a track, all as is known in the art'of traversing hoists.

The bottom of the body 5 is provided by two cooperating jaws 10 and 11, the sides of which extend upwardly on opposite sides of the body 5 nearly to the top thereof, where they are pivotally supported on studs 12 secured to the sides of the body. At opposite 18 are rigidly secured, each of which extends toward the upper part of the other jaw 11, and at each side of the jaw 11, near its lower end, there is similarly secured a smaller link plate 1a. The link plates at each side of the bucket are connected by a link 15, which is pivoted to pins 16 and 17 carried by the apexes of the respective plates. These links and plates are so proportioned and located with respect to each other and to the pivots 12 that the two jaws must open and close simultaneously, as will be understood by comparing Figs. 1 and 2.

At each side of the bucket, a pair of rollers 18 are journaled on studs 19 carried on brackets 20, which are rigidly secured to the bucket. lNithin the pit, or adjacent the point where the bucket is to be loaded, converging guideways 21 are secured in such a position that when the bucket is lowered, preparatory to being filled, the bucket is guided by means of its rollers, and the bucket in upright position is carried downwardly in the direction of the arrow (4 in Figure 1. At this time, the jaws 10 and 11 will be open, and one of these jaws, as 10, is provided on its bottom side with shoes 22 having curved outer edges adapted to engage rollers 23, which are mounted in brackets 24 adjacent where the bucket comes to rest ready to be filled from a chute 25, or other means provided for that purpose. As the shoes 22 ride downwardly over the rollers 23, due to the weight of the bucket, the jaw 10 is closed, and by reason of the link plates 13 and 14 and links 15, the jaw 11 is also closed.

The meeting edges of the jaws 10 and 11 are reinforced by suitable bars 26. On one of the jaws, as 11, there are secured bearing members 27 in which is journaled a shaft 28, and secured to opposite ends of this shaft are latches 29, which are adapted to engage a latch bar 30 secured behind the bar 26 on the other jaw. When the jaws are open they and transferred to the place where it is to be dumped. A number of trip pads 32 are also secured to the shaft 29, and extend beneath and in spaced relation to the latches 29, so that when the bucket is lowered for dumping, these trip pads come in contact with the material in the bin, or storage pile. This raises the latches and the weight of the material in the bucket immediately spreads the jaws, so that as the bucket is again raised they swing open, allowing theload to dis charge through the bottom with minimum shattering of the material comprising the load. The bucket is then returned to loading position, and the cycle of operation is repeated.

From the foregoing description, it will be noted that the operation of the bucket is controlled entirely by the operator of the engine or motor which moves the bucket. No other attendant is needed, either for loading or discharge, since only the hoisting rope is manipulated for looking or releasing the latches.

The reinforced construction of the onepiece body and jaws gives the greatest rigidity and strength, and the location of the pivot studs 12, near the top of the body, together with the shape of the jaws, permits a large discharge opening with only a slight angular motion of the jaws. The link plates 13 and 14, which are rigidly connected to the aws, are connected to each other at each side of 'the bucket by a stiff link 15. The jaws open and close simultaneously, and their connection is simple and positive.

The location of the latches at the sides of the bucket, instead of on the bottom, lessens the chance of damaging the latches when dropping the bucket onto the pile for discharging, and the double latches and trip pads insure positive latching and tripping at all times. 7

The bucket of this application is also claimed in a divisional application, Serial No. 346,590 filed March 13, 1929. In a pending application, Serial No. 78,163 filed December 29, 1925, and assigned to the assignee of the present application, the gate indicated diagrammatically at 25 in Fig. 1 is described and claimed.

Obviously the present invention is not restricted to the particular embodiment thereof herein shown and described. Moreover, it is not indispensable that all the features of the invention be used conjointly, since they may be employed advantageously in various combinations and sub-combinations.

What is claimed is:

1. A traversing hoist comprising, in combination, a bucket; said bucket having a body with pivoted jaws for closing the bottom thereof; means engageable by one of the jaws and rendered effective by the weight of the bucket, as it is lowered to filling position with the jaws open, to close said jaws; and means for latching the jaws when closed.

2. A traversing hoist comprising, in combination, a bucket; said bucket having a body with pivoted aws for closing the bottom thereof; a bail secured to the bucket; a sheave on the bail; a hoist rope suspending the bucket and passing under the sheave, thereby permitting independent hoist and traverse movements of the bucket; means engageable by one of the jaws and rendered effective by the weight of the bucket, as it is lowered to filling position with the jaws open, to close said jaws; and means for latching the jaws when closed.

3. A traversing hoist comprising, in com bination, a bucket, said bucket having a body with pivoted jaws for closing the bottom thereof; two rollers mounted on each side of the bucket; means co-operating with said rollers to guide the bucket as it is lowered to filling position; means for closing the jaws as the bucket reaches filling position; and means for latching the jaws when closed.

4:. A traversing hoist comprising, in combination, a bucket; said bucket having a body with pivoted jaws for closing the bottom thereof; two rollers mounted on each side of the bucket; means co-operating with said rollers to guide the bucket as it is lowered to filling position; an abutment located in the path of one of the jaws as the bucket is so guided, for closing that jaw and thereby closing the other jaw; and means for automatically latching the jaws when closed.

5. A traversing hoistcomprising, in combination, a bucket, said bucket having a body with pivoted aws for closing the bottom thereof; each side of the bucket having two rollers mounted thereon, one in' rear of and above the other; inclined guideways for receiving said rollers and guiding the bucket to filling position as it is lowered; means rendered effective by the weight of the bucket as it is lowered to filling position with the jaws open, to close said jaws; and means for automatically latching the jaws when closed.

6. A traversing hoist comprising, in combination, a bucket having a body with pivoted jaws for closing the bottom thereof; each side of the bucket having two rollers mounted thereon, one in rear of and above the other; inclined'guideways for receiving said rollers and guiding the bucket to filling position as it is lowered; an abutment located in the path of one of the jaws for closing the same as the bucket reaches filling position; means operated by the closing of that jaw to close the other jaw at the same time; and means for automatically latching the jaws when closed.

7. A traversing hoist comprising, in combination, a bucket having a body with pivoted jaws for closing the bottom thereof; an abut ment near the point where the bucket is to be filled; means for guiding the bucket, as it is lowered into filling position with the jaws open, so that one of the jaws will be engaged and closed by said abutment; means connecting the two jaws so that both are closed simultaneously; and means for automatically latching the jaws when closed.

8. A traversing hoist comprising, in combination, a bucket having a body having pivoted jaws forming the bottom thereof; means connecting said aws for simultaneous move ment; a shoe secured to the bottom of one of the jaws; a roller engageable by said shoe as the bucket is lowered to filling position; the engaging surface of said shoe being inclined so that the weight of the bucket causes the same to ride over the roller and close said jaws.

9. A traversing hoist comprising, in combination, a conveyer bucket comprising a body; said body having a pair of opposed jaws forming the bottom thereof and having sides extending upwardly and pivoted to the sides of the body near its top; means connecting said jaws for simultaneous opening and closing movement; and means engaged by one of the jaws for closing the two jaws automatically as the bucket is lowered to filling position.

10. A traversing hoist comprising, in combination, a conveyer bucket comprising a body; said body having a pair of opposed jaws forming the bottom thereof and having sides extending upwardly and pivoted to the sides of the body; a shaft mounted on the underside of one of the jaws; a latch carried by each end of the shaft; a bar secured to the other jaw; means for automatically closing the aws as the bucket approaches filling po sition; and means for causing the latches to engage said bar to lock the jaws in closed position.

11. A traversing hoist comprising, in combination, a conveyer bucket comprising a body; said body having a pair of opposed jaws forming the bottom thereof and having sides extending upwardly and pivoted to the sides of the body; a shaft mounted on the underside of one of the jaws and having a latch secured to each end; a bar secured to the other jaw; an abutment near the point where the bucket is to be filled; means for guiding the bucket, as it is lowered into filling position with the jaws open, so that one of the jaws will be engaged and closed by said abutment; means for closing the other jaw at the same time; and means for causing the latches to engage said bar to lock the jaws in closed position.

12. A conveyer bucket comprising a body, a pair of opposed aws forming the bottom thereof and having sides extending upwardly and pivoted to the sides of the body near its top; a link plate secured to each side of each jaw; and a stiff link at each side of the bucket connectin the two plates which are at that side of the bucket, the points of connection between the links and the respective plates being so located with relation to the jaw pivots that when one jaw is open or closed the other jaw must be correspondingly open or closed.

13. A conveyer bucket comprising a body, a pair of opposed jaws forming the bottom thereof and having sides extending upwardly and pivoted to the sides of the body near its top; each side of one jaw having a comparatively large triangular plate secured thereto with its apex extending toward the side of the other jaw; each side of thesecond jaw having a smaller triangular plate secured thereto below the larger plate with its apex extending toward the side of the first j aw and a stifi link at each side having its ends pivotally connected to the apexes of the respective plates; said apexes being so located with relation to the jaw pivots that when one aw is open or closed the other aw must be correspondingly open or closed.

14:. A traversing hoist comprising, in combination, a conveyer bucket having a pivoted jaw for dumping the load; an abutment near the point where the bucket is to be filled and placed in the path of the bucket; means for guiding the bucket as it is lowered into filling position so that a jaw thereof will be engaged and closed by said abutment; and

means for latching said jaw in closed position.

15. A conveyer bucket comprising, in combination, a body open at the top; a pair of jaws pivoted to the body near the upper end, at widely spaced points and so constructed and arranged that when their lower edges meet the bottom of the bucket is completely closed; a linkage connecting the two jaws so that they open and close together; a latch mounted on one of the jaws; a latch bar adj acent the lower edge of the other jaw; and a member on the jaw which carries the latch for supporting the latch in proper position when the jaws are open; the jaw being out of he way of the material discharged through the bottom of the bucket.

16. A conveyer bucket comprising, in combination, a body open at the top; a pair of jaws pivoted to the body near the upper end, at widely spaced points and so constructed and arranged that when their lower edges meet the bottom of the bucket is completely closed; a linkage connecting the two jaws so iiei , ture.

that they open and close together; a latch mounted on one of the aWs; a latch bar adj acent the lower edge of the other aw; and a bar secured to the lower edge of the jaw which carries the latch and reinforcing said edge and also providing a support for the latch which is held in latch-bar engaging position when the jaws are open.

In testimony, that I claim the foregoing my own, I have hereto atfixed my signa- AZZEL C. BENNETT.

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