US716239A - Hoisting-bucket. - Google Patents

Description

No. 7l'6,239. Paitented Dec. 16,1902. 0. &. J. JOHNSON. HOISTING BUCKET.

(Applicatiqn filed June 12, 1902.)

(No Mndl.) 3 Sheets-Sheet l.

No. 7|6,239. Patented Dec. l6, I902.

0. a J. JUHNSO N.

HOISTING BUCKET.

(Application filed June 12, 1902.) (No Model.) 3 Sheets-Sheet 2;

No. 716,239. PatentedDc. I6, 1902.

0. & J. noun-sou.

HOISTING BUCKET.

(Application filed June 12, 1902.) (No Model.)

3 Sheets-Sheet 3.

M Q QJMMQA M Km m: norms Farms no, PHOm-UTHQ, WASHINGTON n c.

UNITED S ATES ATENT Onricn.

, OLE JOHNSON AND JOHN JOHNSON, OF MILWAUKEE, WISCONSIN.

HOlsTlNG-BUCKET.

SPECIFICATION forming part of Letters Patent No. 716,239, dated December 16, 1902.

Application filed June 12,1902. 8erial No. 111,276. (No model.)

To aM w/tom it may concern:

Be it known that we, OLE JOHNSON and JOHN JOHNSON, residing at Milwaukee, in the county of Milwaukee and State of Wisconsin,

have inventeda new and useful Improvement in Hoisting-Buckets, of which the following is a description, reference being had to the accompanying drawings, which are a part of this specification.

This invention relatesto hoisting-buckets,

and more especially to hoisting-buckets of the type familiarly known as clam-shell buckets, and also to improvements in the means or apparatus for using or manipulating said buckets. Heretofore or previous to this invention, we believe, in the manipulation of buckets of this typethat is, in loading, closing, and hoisting the buckets to the carriage or trolley for conveying them to the point of dumping and hauling or pulling said carriage or trolley-it has been necessary to use more than one'line, cable, or chain, as the case might be. We believe that it has been necessary to employ one line for hoisting the bucket and another line for closing the bucket and so holding it in closed position until the point of dumping had been reached, at which time said closing-line had to be slackened to allow the bucket to move to open position. In most cases, we believe, it has been necessary, and therefore customary, to employ, aside from a line for hoisting the bucket, a line forhauling or moving the carriage or trolley for transferring the bucket and a line for closing and opening the bucket. The proper and timely manipulation of the plurality of lines or chains which heretofore it has, it is believed, been necessary to use has been more or less diificult, and when rapid manipulation has been attained it has necessitated the attention of more than one attendant for each bucket.

The simplifying of the manipulations, the automatic accomplishment of some of the steps heretofore manually accomplished, the production of a simply-constructed and powerful bucket, in which the maximum closing power is attained, and the accomplishment this invention, and the above as well as other objects are accomplished by means of a bucket and the elements and parts for manipulating the same, as described hereinafter in this specification and illustrated in the drawings herewith presented.

The carriage or trolley and the agent carried by the same for engaging and sustaining the bucket when it is hoisted thereto, the engine and winding apparatus, and the superstructure and booms necessary in devices of this character do not per se constitute any portion of this invention. The particular arrangement and use, so to speak, or rather the manner in which these parts are combined to produce a result, constitutes a part of and is embodied in this invention.

In the drawings, Figure 1 is a side elevation of a bucket in closed position used in the accomplishment of this invention, and in this view portions are shown broken away and portions in section. Fig. 2 is a plan view of said bucket with the head and line removed and with the links for connecting said head and bucket broken off. Fig. 3 is a side elevation of said bucket in open position, and this view shows the arrangement of the line in its passage about the several sheaves used. Fig. 4 is an end elevation of said bucket in closed position. Fig. 5 is a diagrammatic view illustrating an apparatus or system for the accomplishment of one method of manipulating the bucket, and in this view fragmentary portions of the superstructure or carriage-way are shown, together with an arrangement of releasing and stop devices for facilitating the automatic manipulations, and a counterweight to assist the power-motorlis shown on a line encircling the drum of the winding device, which itself is shownin side elevation. Fig. 6 is a plan view of the winding device. Figs. 7 and Sare detail views of modifications of two distinct portions of the bucket.

Throughout all the figures like portions are denoted by similar reference-numerals.

The bucket consists of two segments 9 and 10, pivotally connected to a pivot-shaft 11 by means of four arms 12, 13, 14, and 15, riveted or otherwise suitably attached to the upper parts of the side pieces. Each of the arms is provided with an upwardly-extending portion having an eye therein adapted to encompass said shaft, which lies directly above the meeting edges of the bucket when in closed position. The arms 12 and 15 are formed in the nature of links, while each of the arms 13 and 14 is provided with an ofiset and cylindrically-formed portion 16, surrounding the pivot-shaft and extending toward the center to within working distance of the other. The cylindrical portion 16 of the arm 13 is provided With a sheave-carrier 17, formed in the nature of a shield or housing for protectinga sheave 18, rotatably carried on a shaft supported by its side walls, from contact with the material to be hoisted. The shaft-housing projects past the pivotshaft onto the segment (10) side of the bucket andform's a lever the strain of which is transmitted by its cylinder 16 and arm 13 to segment 9. Arm 14 is formed in a manner, as far as arm 13 has been explained, identical with arm 13; but the sheave-housing of arm 14 has a housing 19 of a locking agent riveted or otherwise secured thereto. 5.

The'locking agent consists of a lock-bolt 20, reciprocally contained within the housing and formed with a collar or shoulder21, between which and the'outer end of said housing a spiral spring 22 is confined around the stem of the bolt, which projects beyond the outer end of the housing. The'cylinder 16 of arm 13 is provided with two holes 23 and 24, into which said lock-bolt is adapted to be forced when in line therewith by said spring to lock the segments 9 and 10 against pivotal movement until the bolt is released or withdrawn. When the bolt is within hole 23, the bucket will be locked in closed position, and when within hole 24 it will be locked in open position.

The locking of the bucket in closed position will be accomplishedautomatically when the same is closed, and we provide means for automatically unlocking the bucket or releasing the locking agent at the proper times when the bucket is locked in both open and closed positions.

A lever 25 is pivotally carried by a studpin 26, secured to the sheave-housing carrying the lock, and said lever has a short arm 27 connected, by means of a link 28, to the outer end of the locking-bolt. In Fig. la depending contact-foot 29, pivoted to the outer end of lever 25, is shown, while in Fig. 7 a

modified form of lever 25 is shown with the contact-foot form ed integral with the long arm of the lever.

Pivotally carried a suitable distance above the bucket proper by means of links 30, pivotally connected to rods 31, which connect the bucket side arms, is a bifurcated head 32,

between the furcate parts of which line sheaves are mounted on a shaft 33, carried by said furcate parts. In Fig. 4 two sheaves are shown, while in Fig. 8 three are shown, and three,"it is found, are preferable.

The

head is provided with a laterally-extending cross-piece or engaging member 34 for engaging with the sustaining agent on the carriage.

In Fig. 5 we show a fragmentary section 35 of a track, which may be carried on a boom or other part of any suitable superstructure leading from the point of loading to the point of dumping. A carriage 36, preferably similar to the carriage shown in Letters Patent No. 638,722, issued to Ole Johnson on December 12, 1899, will be used. The carriage is provided with a pivoted hook or sustaining member 37 for engaging the cross-piece of the bucket-head when the same is hoisted thereto. This hook 37 is similar to the hook 29 of the prior patent referred to and, like it, is spring-held in operative position. The carriage is provided with a latch 38 fors'winging the sustaining member 37 to release the crosspiece when the carriage reaches the point of loading. This latch is similar to the latch 31 of said prior patent and at one end is provided with an elongated slot surrounding a pivot-pin on the carriage, and at the other end it is provided with a hook 39, having a beveled face 40, which allows the latch when said beveled face 40 contacts with a suitable bucket-lowering agent 41 to rise and engage said agent. When the latch thus rises and contacts with the agent, the latch is moved longitudinally by the movement of the carriage, and the sustaining member 37 is thereby swung and the cross-piece of the buckethead released, so that the bucket falls to the loading-level. When the bucket is again raised to the carriage, the cross-piece of the bucket-head contacts with the latch in its upward movement, raises the latch, and the latch is thereby disengaged from the agent 41.

-A bufnper 42 is positioned at the dumpingpoint, so that it will contact with lever 25 and release the locking agent on the bucket, so that the bucket will when proper slack has been allowed in the line dump its load.

A winding-engine, located at any suitable place, will preferably embody a windingdrum 43, rotatable in either direction and mounted on a shaft 44, journaled within eccentric blocks 45, which in turn are journaled within suitable bearings and provided with crank-arms 46. A shaft 47, provided with cranks 48, connected to cranks 46 by means of links 49, carries an actuatinglever 50, by means of which the position of the drum may be changed at will. Adjacent to one end of the drum a rotatable shaft'51 is journaled and carries two friction-rolls 52, preferably paper rolls, which are adapted to contact with the periphery of the flanges of the winding-drum when the drum is swung toward and in contact therewith by lever 50. Shaft 51 also carries a pulley 53 for a ropedrive. A shaft 54, carrying friction rolls similar to rolls 52 and a pulley similar to pulley 53, is located adjacent to the other end of the drum. A friction-brake 55 for contacting with the peripheryof one of the flanges of the drum is adaptedto bemoved into such contact by means of a foot-lever 56, suitably connected thereto. A drive-rope 57 passes overthepulleyon shaft 54 and under pulley 53 and after passing over a suitable idler-pul riage, as indicated. by arrows and letters in Fig. 3, and the line in this view, as it passes a sheave, is given the letter next following in order to clearly indicate its direction. From sheave 60 the line passes along thetrack over a sheave 61, adjacent to the point of dumping, and down and around the winding-drum, to which it is secured.

A counterweightis employed to assist the engine or motor in its work, and said Weight may either be carried by the line 58 beyond the point at which it is secured to the drum, or, as shown in Figs. 5 and 6, a separate line 62 may be employed, which will be secured to the drum, passover a sheave 63,and around a sheave 64, carried by weight 65, and back up to a point 66, where it is fastened to some suitable part of thesuperstructure.

For the sake of describing the operation of theapparatus assume that the bucket shown in Fig. 5 has been loaded, hoisted to thecarriage engaged by the sustaining agent, that said carriage has been released from stop 41, and is travelingtoward the point of dumping. \Vhen the carriage reaches the point of d umpging, bumper a2 will contact with the lock'freleasing lever, and as soon as sufficient slack has been allowed in the line the bucket will open and the load will be dumped, and when the bucket is opened it will be locked automatically in open position. When the wind- .ing device has been reversed by throwing the drum in contact with the frictionrolls carried by shaft 54 and theline allowed to play out, the carriage will descend along the track to the point ofloading,and as the inclined face of the latch rides over stop 41 the sustaining agent will release the bucket and allow it to fall in open position to the loading-level.

When the bucket is locked in open position,

the contact-foot oi the lever-25 will stand in the position shown in Fig. 3, and when the ing said segments against pivotal movement.

2. A hoisting-bucket, comprising two pivotally-mounted bucket-segments, a head, links connecting said head and said segments, a

bucket closing and hoisting line, and means after said bucket is opened for automatically locking said segments against pivotal movement.

3. A hoisting-bucket, comprising two pivot ally-mounted bucket-segments, means, after said bucket is closed for automatically looking said segments against pivotal movement and means for automatically releasing said locking means.

4. In a hoisting bucket, two pivotallymounted bucket-segments, a device for automatically locking said bucket in open position and means for automatically releasing said locking device.

5. A hoisting-bucket comprising two pivotallymounted bucketsegments, a head, a plurality of sheaves carried by said head,

orossingarms secured to said bucket-segments, a sheave for each cross-arm, a closing and hoisting line passing about said sheaves, and an agent for automatically locking said bucket in open position until said agent is released by contact With material to be hoisted. 6. The combination with ahoistingbucket, of a movable carriage, a line for closing and hoisting said bucket and haulingsaid carriage, and a device for automatically locking said bucket in open position until said device is released by contact with material to be hoisted. 7. The combination with a hoisting-bucket provided with a device forautomaticallylocking the same in open and closed positions, of a movable carriage, a line for closing and hoisting said bucket and hauling said carriage to a dumping-point, means adjacent to said dumping point for automatically releasing said locking device when said bucket is locked in closed position; said locking device adapted to be released by contacting with material to be hoisted when said bucket is locked in open position. 5

8. The combination with a hoisting-bucket having two pivotally-mounted bucket-segments, of a movable carriage, an agent on IIO said carriage for engaging and sustaining said bucket when hoisted thereto, a line for .closing and hoisting said bucket and hauling ments, of a movable carriage, an agent on said carriage for engaging and sustaining said bucket when hoisted thereto, a line for hoisting said bucket, and means, for locking said bucket in open position.

10. The combination with a hoisting-bucket having two pivotally mounted bucket segments, of a movable carriage, an agent on said carriage for autornaticallyengaging said bucket when hoisted thereto, a line for hoisting said bucket and hauling said carriage from a point of loading to a point of dumping, a carriage-way, means adjacent to said point of loading for locking said carriage against movement until said bucket is engaged by said agent, a device on said bucket for automatically locking the same in closed position and means adjacent tosaid point of dumping for automatically releasing said bucket-locking means.

11. The combination with a bucket having pivoted bucket-segments, of a carriage employing an agent for engaging said bucket when hoisted thereto, a line for closing and hoisting said bucket and a device for automatically locking said bucket in closed position until by means in its path of travel released, and when said bucket is opened, in open position until said device contacts with material to be hoisted.

12. The combination withahoisting-bucket having pivoted bucket-segments, of a carriage, means on said carriage for automatically engaging said bucket, a line secured to said carriage passing around sheaves on said bucket and back over a sheave on said carriage forhoisting said bucket, means for moving said line to closeand hoist said bucket and haul said carriage, means for counteracting a portion of the weight of said bucket, and means, after the line has been slackened and the bucket opened to dump its load, for automatically locking said bucket in open position and so holding it until said means contacts with material to be hoisted.

13. The combination with a hoisting-bucket having two pivotally-mounted bucket-segments, of a movable carriage providedwith an agent for automatically engaging said bucket when the same has been hoisted thereto, a line for closing and hoisting said bucket and hauling said carriage to a point of dumping, a device carried by said bucket for automatically locking it in closed position, releasing means in the path of travel of said bucket for contacting with said device to unlock the same, and means, coacting with said device for locking said bucket in open position, said device, while said bucket is locked in open position, when it contacts with material to be hoisted being adapted to be antomatically unlocked to allow said bucket to close.

14. In a hoisting-bucket, two bucket-segments, means pivotally connecting said segments, a lever-arm carried by each segment crossing said connecting means, a sheave carried by each lever-arm, a head, connections between the head and said segments, a plu rality of sheaves carried by said head, a closing and hoisting line passing about said sheaves, and means for automatically lockingsaid bucket in'open position.

15. A hoistingbucket, comprising two bucketsegments pivotally connected together, ahead, links connecting the head and segments, and a lock for automatically locking said bucket in open and closed positions,

said look when said bucket is locked in open positionbeing adapted to be unlocked by contact with material to be hoisted.

16. In a hoistingbucket, two bucket-segments,a pivot-shaft connecting said segments together, a portion of a spring-actuated looking agent movable with one segment and carried by a lever-arm secured thereto, and another portion of said agent movable with the other segment and carried by a member secured thereto, said portions,when said bucket is in open position, coacting to automatically lock the segments against pivotal movement. 17. In a hoisting-bucket, two bucket-segments,a pivot-shaft connecting said segments together, a portion of a spring-actuated locking agent movable with one segment and carried by a lever-arm secured thereto, another portion of said agent movable with the other segment and carried by a member secured thereto, said portions, when said bucket is in open position, coacting to automatically lock the segments against pivotal movement, and means for contacting with said agent to unlock said bucket to allow the same to close.

18. In a hoisting-bucket, two bucket-segments,a pivot-shaft connecting said segments together, an arm secured to the top of oneside of each segment extending longitudinally thereof and provided with a sleeve-like portion surrounding said shaft and extending toward the center thereof, a sheave-carrier carried by each arm and extending over onto the opposite side of the bucket from the arm which carries it, a sheave mounted in each carrier, a head, links connecting said head and segments, a plurality of sheaves carried by said head, a locking agent carried by one of said arms, means coacting with said locking agent when said bucket is in open position to lock said segments against pivotal movement, and means for automatically releasing said lock.

19. In a hoisting-bucket, two bucket-segments,apivot-shaft connectingsaid segments, an arm securedto the top of one side of each segment extendinglongitudinally thereof and provided with a sleeve-like portion surrounding said shaft and extending toward the center thereof, a sheave-carrier carried by each arm and extending over onto the opposite side of the bucket from the arm which carries it, a sheave mounted in each carrier, a head, links connecting said head and segments, a plurality of sheaves carried by said head, a locking agent carried by one of said arms, and means coacting with said locking agent to lock said segments against pivotal movement.

20. Inahoisting-bucket having two bucketsegments connected together by a pivot-shaft, sleeves surrounding said shaft and connected to said segments, and a locking agent comprising means carried by one of said sleeves for coacting with means carried by the other of said sleeves to automatically lock said bucket in open position.

IIO

segments connected togetherby a pivot-shaft,

sleeves surrounding said shaft and connected to said segments, and a locking agent comprising means carried by one of said sleeves for coacting with means carried by the other of said sleeves to automatically lock said bucket in open and closed positions.

23. In a hoisting-bucket having two bucket.- segments connected together by a pivot-shaft, sleeves surrounding said shaft and connected tosaid segments, a locking agent comprising means carried by one of said sleeves for coacting with means carried by the other of said sleeves to automaticallylock said bucket in open position, and a releasing member operatively connected to said agent, said re leasing member when said bucket is in open position lying in the path of material entering said bucket and by contact therewith to said segments, and a locking agent comprising means carried by one of said sleeves for coacting with means carried by the other sleeve to automatically lock said bucket in closed position, in combination with a releasing member in the path of travel of said bucket, adapted by contact to release said agent to allow the bucket to move to open position.

25. In a hoisting-bucket having two bucketsegments con nected together by a pivot-shaft, sleeves surrounding said shaft and by means of arms connected to said segments, a head, links connecting said head to said segments, a plurality of sheaves carried by said head, an arm on each sleeve, a sheave carried by each arm, a hoisting-line passing about said sheaves, a locking agent comprising means carried by one of said sleeves for coacting with means carried by the other sleeve to antomatically lock said bucket in open position, and a releasing member operatively connected to said agent for contacting with material to be hoisted to unlock said bucket and allow the same to move to closed position.

In testimony whereof We affix our signaturesin presence of two Witnesses.

OLE J OHNSOI. JOHN JOHNSON.

Witnesses:

O. T. BENEDICT, J NO. S. GREEN.

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