US794842A - Hoisting-bucket. - Google Patents

Description

No. 794,842. PATENTED JULY 18, 1905. W. H. BECKETT.

HOISTING BUCKET. APPLIOATION FILED MAB..11,1905.

Witness@ 3 Z f 2 f/ gf. f

r n. Httomegs NITED STATES Patented July 18, 1905.

PATENT OFFICE.

HOlSTlNG-BUCKET.

SPECIFICATION forming part of Letters Patent No. 794,842, dated July 18, 1905. Application sied March' 11,1905. serial No. 249.631.

To a/ZZ whom, it may concern,.-

Be it known that l, WILLIAM H. BECKETT, a subject of the King of England, residing at Dunchurch, in the Province of Ontario and Dominion of Canada, have invented a new and useful Hoisting-Bucket, of which the following is a specification.

This invention relates to hoisting-buckets for handling various materials-such as coal,

grain, gravel, sand, or any other material the nature of which renders it suitable to be operated upon by a bucket of this character, said bucket being used in connection with a derrick, whereby the material operated upon may be transferred from one place to another-such as, for instance, from a pile or heap to a railroad-car, from a car to a vessel, or the like.

The object of the invention is to simplify and improve the construction and operation of a device of this class; and with these and other ends in view, which will be readily understood, the invention consists in the improved construction and novel arrangement and combination of parts, which will be hereinafter fully described, and particularly pointed out in the claims.

In the accompanying drawings has been illustrated a simple and preferred form of the embodiment of the invention, it being, however, understood that no limitation is necessarily made to the precise structural details therein exhibited, but that the right is reserved to any changes, alterations, and modi.- fications to which recourse maybe had within the scope of the invention and without departing from the spirit or sacrificing the efficiency of the same.

In said drawings, Figure 1 is a side elevation showing the hoisting-bucket open for discharging its contents and with dotted lines representing the grappling member lowered for engagement with the bucket prior to refilling and elevating the same. Fig, 2 is a side elevation showing the hoistingbucket closed prior to discharginor its contents, the grappling member being illustrated in dotted lines in a closed and in fulllines in a tripped position. Fig. 3 is a top plan view showing the bucket open, the supportare indicated throughout by similar characters of reference.

The improved hoisting-bucket is composed of two approximately semicylindrical members 1 1, each of which is provided with a pair of radially-extending arms 2 2 and each having a slot 3 for the accommodation of one of the arms 2 of the opposing member, which may thus be arranged in such a manner as to partially overlapV one another, as indicated at 4, the overlapping parts being pivotally connected by means of bolts, rivets, or other suitable connections 5 5, whereby the members 1 1 will be permitted to close compactly together.

A supporting-frame for the bucket is provided, which includes a head 6, having a depending bracket member 7 and provided at the four corners thereof with perforated ears or lugs 8, with which are connected the upper ends of supporting-rods 9, the lower ends of which are pivotally connected with the members 1 of the bucket about midway of the outer edges of the latter. By this construction it will be seen that the bucket members when suspended from the head 6 will automatically open up to the position shown in full lines in The head member 6 and the bracket 7, constituting .a part thereof, are provided with slots 10 for the passage of a bar 11, carrying at its lower end a latch or grappling device which includes a stationary bevelpointed hook 12 and a bell-crank lever 13, one arm of which -terminates in a bevelpointed hook 14 and the other arm of which is connected with a trip-rope 15, which may be extended through guiding means, such IOO said cross-bars are connected with each other by means of a flexible connection, such as a chain 18, including a link 19. Said link 19 is provided wth a cross-bar 20, upon which is mounted for rotation a sleeve 21 which is triangular in cross-section. This sleeve is disposed directly' in the path of the grappling member when the latter is permitted to descend, being guided in the slots of the head 6 and bracket member 7 in such a manner that when it descends it will surely engage the said sleeve.

The upper end of the bar 11, carrying the grap ling member and which may be designate the "grappling-bar, is supported by a flexible element, such as a chain 22, a short portion of which has been shown in Figs. 1 and 2 of the drawings. Said chain is in practice guided over pulleys connected with a derrick of ordinary construction and to a winding-drum; but these devices form no part of the present invention and have not been illustrated.

Assuming the device to be resting in extended position upon a pile of material which is to be transferred, the grappling-bar is permitted to'descend until the hook members 12 and 14 engage the triangular sleeve 21. In thus engaging the triangular sleeve the movable hook member will be forced in an outward direction, and the stationary hook member will engage the sleeve in whatever position it may happen to be, tilting or partially rotating said sleeve until the movable hook member closes thereupon, one of the plane sides of the sleeve being thus firmly supported upon the two hook members. Upon draft being applied to the grapplingbar in an upward direction the arms 2 2 of the bucket members will be drawn in the direction of each other, and the free edges of the bucket members, which are preferably provided with teeth 24, will gather the material to be operated upon, practically filling the bucket. The sides of the bucket members being partially overlapped, there will be little chance of material being spilled between the sides of said members, while the free edges of thelatter will close tightly against each other, owing to the continued upward strain. When the bucket has been hoisted to the desired elevation, it may be moved to a position directly over the spot where it is desired to dump the load, when by a slight ull upon the trip-rope 15 the hook member 14 will be drawn from under the triangular sleeve 21, which latter will thus be permitted to partly rotate and become disengaged from the stationary hook member 12, and thus permitting the members of the bucket to open apart by their own weight, aided by that of the material contained therein, which as the bucket opens will be dumped in the desired spot. lt will be observed that while the bucket is being elevated and conveyed the head 6 will be supported rupon the shouldered casing at the lower end of the grappling-bar, within which the grapplinghooks are contained, so that the bucket members are practically suspended from the said head 6. A cushion-spring, as 30, is preferably interposed between the shouldered casing 25 and the bracket 7 of the head 6 for the purpose of reducing and preventing jarring in the operation of the device. After the load has been discharged the device is swung into position over the pile of material which is to be moved and lowered until the extended bucket is supported upon the material, after which the grappling-bar is lowered for a repetition of the operation. --1-4 Having thus described the invention, what is claimed is- 1. A hoisting-bucket including two pivotally-connected members each having a pair of radially-extending arms and each having a slot for the accommodation of an arm of the opposing member.

2. A hoistingbucket including two pivotally-connected members each having a slot for the accommodation of a portion of the opposing member.

3. A hoisting-bucket including two pivotally-connected members each having a slot for the accommodation of a portion of a side wall of the opposing member.

4; In a device of the class described, a bucket including two pivotally-connected members having radially-extending arms, 'flexible connecting means between the arms and the bucket members, a supporting-head, supporting-rods connecting said head with the outer edges of the bucket members, and a grappling member guided through the head for vertical movement and adapted to engage the flexible connecting means between the arms of the bucket members.

5. In a device of the class described, a hoisting-bucket including two pivotally-connected members having radially-extending arms, cross-bars connecting the arms and the bucket members, flexible connecting means between said cross-bars, a supporting device including a head and rods connecting said head with the outer edges of the bucket members, and a grappling member guided for vertical movement thro ugh the head and adapted to engage the flexible connecting means between the cross-bars connecting the arms and the bucket members.

6. A bucket including two pivotally-connected members having radially-extending arms, a ilexible connection between the arms of the bucket members including a link having a cross-bar, supporting means includmg a head and supporting-rods connecting said head with the outer edges of the bucket members, and a grappling member guided for vertical movement through the head and adapted for engagement with the cross-bar IOO IOS

IIO

of the link included in the ileXible connecting means Jfor the arms of the bucket members.

7. In a device of the class described, a hoisting-bucket including two pivotally-connected members, a supporting-frame including a head, and rods connecting said head with the bucket members, a grap ling member guided through the head an through a bracket connected therewith, flexible connecting means for the bucket members, and

a grapple-engaging member included in the lleXible connecting means.

8. A hoisting-bucket including two pivotally-connected members, a supporting device including a head and a plurality of rods connecting said head with the bucket members, and a grappling member guided for vertical movement in, and having means for engaging the head of the supporting member.

9. Pivotally connected bucket members having radially-extending arms, flexible connecting means between said arms including a link having a cross-bar, and a grappling pointed hooks, one of said hooks being pivotally supported, in combination with engaging means including a sleeve supported for rotation, said sleeve being triangular in crosssection.

12. A supporting device including a head and a bracket member connected with and spaced from said head, said head and bracket member having slots therein, pivotally-connected bucket members having radially-eX- tending arms, supporting-rods connected pivotally with said bucket members and with the supporting-head, a bar mounted for sliding movement in the'head and in the bracket connected therewith, said bar being provided at its lower end with an expanded casing adapted to abut against the under side of the supporting-head, flexible connecting means between the arms of the bucket members, connecting means including a link having a cross-bar, a triangular sleeve mounted for rotation on said cross-bar, grappling members connected with the casing of the verticallymovable bar, said grap ling members including a stationary beve -pointed hook and a bell-crank lever one arm of which terminates in a bevel-pointed hook, and a trip-rope connected with the other arm of the bell-crank lever.

In testimony that I claim the foregoing as my own I have hereto aiiiXed my signature in the presence of two witnesses.

WILLIAM H. BECKETT.

Witnesses:

C. A. ROBERTSON, W. L. KENNEY.

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