US1418004A - Bucket-loading hook - Google Patents

Description

' J. w. LARSON.

BUCKET LOADING HOOK- v APPLICATION FILED MAR. 9, 1921.

Patented May 30, 1922-.

6 2 sHE Is-AHEET 1.

J. W. LARSON. I BUCKET LOADING HOOK.

APPLICATIQN FILED MAR. 9. 1921.

Patented May 30, 1922 2 SHEETS-SHEET 2.

JOEY .7? 1243501]? IN VEN TOR.

A TTORNE Y.

UNITED STATES JOHN W. LARSON, 0F ESCANABA, MICHIGAN.

BUCKET-LOADING HOOK.

Application filed March 9,

To all whom it may concern."

Be it known that 1, Jean 7. LAnsoN, a citizen of the United States, residing at Escanaba, in the county of Delta and State of Michigan, have invented certain new and useful Improvements in Bucket-Loading Hooks, of which the following is a specification, reference being had to the accom panying drawings.

This invention relates to hooks whereby a detachable engagement may be had between a hoisting or directing cable and an object to be hoisted or directed, and particularly to a hook designed to be associated with a bucket or clam shell excavator and used for unloading coal, iron ore, or other like materials from vessels and particularly designed for the purpose of directing or drawing the bucket or clam shell to the particularpart of the vessel where the coal is and directing the clam shell to a position where it may be hoisted through the hatchway of the vessel.

The general object of my invention is to provide a device of this character so constructed that by means of a controlling cable the hook may be shifted either into a hooking or a releasing position to engage the body to be hauled or to release said body.

A further object is to provide a device of this character so constructed that it may be operated by one man on deck or that it may be operated from between the decks.

And a further object is to provide a device of this character which will control] ably direct thehoisting bucket or clam shell. to the coal or ore pile much more quickly than is possible where a bucket or clam shell is shifted by hand.

Other objects have to do with the details of construction and arrangement of parts as will appear more fully hereinafter.

My invention is illustrated in the accompanying drawings, wherein:

Figure 1 is a side elevation of my improved hook;

Figure 2 is a front elevation thereof;

Figure 3 is a like view to Figure 1 but showing the hook in its released position;

Figure 41 is a like view to Figure 1 but showing the collar 21 in section;

Figure 5 is a diagrammatic View of a vessel showing the hook about to be connected to the elevator bucket;

Figure 6 is like view, to Figure .5 and lowered.

Specification of Letters Patent. Patehted May 30, 1922.

1921. Serial No. 450,887.

11 and at their lower ends by means of a transverse'pin 12. Attached to the pin 11 is a cable 13. Rotatable upon the pin 11.

is a bail 141 to which a cable 15'is attached. Stops 16 are attached to the outside faces of the bars 10, these stops being located at a predetermined distance below the pin 11.

Pivoted between the lower ends of the bars is the hook proper, designated 17, this hook being slightly curved and beveled at one end. Extending between the bars a shank 18 which, at its lower end, is bifurcated or forked and pivoted by a pin 19 to the rear end of the hook .17. This shank adjacent its upper end and upon its inner face is formed with a laterally projecting, off-set shoulder 20.

I Sliding upon the bars 10 is a rectangular collar 21. that wall of the collar which confronts the interior face of the shank 18 having a beveled recess 22 within which the shank 18 operates. The opposite wall" of the collar is formed with an oppositely bcv elled recess 22 within which the rear edge of the shank operates when the collar is This collar is longitudinally slidable uponthe bars 10 and is supported by means of a bail 23 which is held from slid ing movement by eyes 9/1 projecting from the sides of the collar, the lower ends of the bail being inwardly turned, as at 25. The bail extends above the upper ends of the bars 10 and is operatively conne ted to a cable 26; Extending between the bars and across the path of movement of the shank 18 is a pin 27 with which the shoulder 20 coacts. i

In the operation of this device, when the shoulder 20 of the shank 18 is against the pin 27, downward movement of the hook 17 is prevented and as a consequence a pull upon the cable 13 will cause the bodily movementof the hook in its operative position. If. however, the collar 21 be raised, that is shifted away from. the hook 17 by means of the bail 23and cable 26, the collar will move upward on the bars 10 and, striking the upperend of the shank 18, will shift this shank pin 27.

rearward so thatthe shoulder 20 will be shifted out of engagement with the pin 2'7 and as a consequence any strain onthe hook 17 will cause the hook 17 to move into a position nearly in alignment with the bars 10, permitting anything engaged by the hookto' slip ofi'the hook, or in-other words permitting the hook to become disengaged,

from the object with which it has heretofore been engaged and which it has been pulling. Upon the release of the collar 21, however, the collar will shift back to its initial. position, that is the position shown in Figure 1, and the shank 18 will drop back to its initial position with the shoulder 20 beneath the The dropping of the rear end of the book 17 and of the shank is limited by a stop 28 attached to the lower ends of the bars 10 and extending across these bars rearward ofthe pivot pin 12.

As illustrated in Figure 5, below the deck A] of the vessel and between the hatches B and Cor in any other suitable location there is disposed a transversely extending cable 29, and'the cable 13, which is a wire cable, or;- tends to this cable 29 and is provided with a ring 30 through which the cable 29 passes. The cable 26, which is attached to the bail 23, extends up loosely through one of the hatches, as for instance the hatch (I, and is 1 engaged with the combing C of the hatch in any suit-able manner so that it will be convenient to the operator. A chain 31,-which -is from 5 to 12 long, is attached to the cable ring 30 andthe hatch comb (2. The cable 15, which isv attached to the ring onthe bail 14:,

. extends up through the hatch. (l to the deck,

with. the bail of the hoisting bucket.

the operator on deck controlling themovement of the clam hook in one direction by means of this cable. By means of this cable 15 or guy line, the hook may be drawn over :80 as to operatively engage the hoisting ened it will cause the upward movement of the collar 21 which, as before explained, ongaging the upper end of theshank 18, will shift the shoulder 20 out engagement with the pin 27a nd permit the hook members 17 to turn'to the position shown diagrammatically in Figure 6, which will release the hoist ing b'ucketand the lioisting bucket will now drop "downward on the coal. As soon asthe hoisting bucket has beenreleased from'the hook,the hook member 17 will return to its initial position and again be locked by the collar 21. This device is also to be operated under the deck on boats withcross beams, and while I have illustrated a particular way of supporting the book so that it is automatic in its action, it will be obvious that the hook might be connected to cables whereby the hook and the hoisting bucket could be drawn to any desired position within the vessel and then the hook released. lVhile I have designed this hook with particular reference to the unloading of vessels containing ore and coal, I do not wish to be limited to this, as it is obvious that it might be used in many other circumstances and for many otheiypurposes, particularly where it was desired tc carry an object such as a bucket from one point to another and then release the object. This can be done by providing a hoisting cable and cable to pull-the hook to any desired position and releasing the cable.

It is to be understood that in Figures 1, 2 and 3 I have shown the bail 14 as extending upward as if the cable 15 were taut, but this to prevent confusion. =VVhen the cable 15 is slack, the bail 14 will hang down behind the shank 10 of the hook. When thebail 14 hangs down on the back of the hook shank, the guy rope ring 30 will slide overto one side of the hook so thatthe side of the hook will tace the man on deck sothat it can be hooked on -l:'rom:either side of the:clan1 or bucket. Preferably the cable .26 will be so arranged that it may be made longer or shorter as is foundnecessary, and for this purpose a short lengtho'l'f chain may housed at the extremity of the cable 26 and adjustably connected to the hook whereby the cable 26 is engaged with the combing ofthe.

deck.

lVh-ile I have illustrated a construction which I have found to be thoroughly effective for the purpose intended, and which is .very simple in its operation, I do not wish to be limited thereto, as it is obvious that many changes might be made 111 the details of construction and arrangement of parts' without departing from the spirit of the invention.

1. A. device of :the character described comprising a body, a-hookmember pivoted intermediate its ends to the lower end of the body, a shank pivoted to the rear end of said hook member and extending upward and across the body, astop mounted on the body,

theshank being formed with a shoulder adapted to engage said stop to prevent the downward movement of the free end of the hook member, and longitudinally shiftable means on the body adapted toengage the shank and shift it out .of engagement with the stop to thereby permit the'ho'ok member to turn toward a position of alignment with the body.

2. A device of the character described comprising a body, a hook member pivoted intermediate its ends to the lower end of the body, a shank pivoted to the rear end of said hook member and extending upward and across the body, a stop mounted on the body, the shank being formed with a shoulder adapted to engage said stop to prevent the downward. movement of the free end of the hook member, and a releasing slide mounted upon thebody and adapted when pulled away from the hook member to shift the shank out of its engagement with the stop to thereby permit the hook member to turn toward a position of alignment with the body.

8. A device of the character described comprising a body formed of two parallel bars spaced from each other, a hook member pivoted intermediate its ends between said bars at the lower ends of the latter, a shank pivoted to the rear end of said hook member and extending upward between said bars at an angle thereto and. formed with a shoulder, a stop extending between the bars and with which the shoulder is adapted to engage to prevent the downward movement of the free end of the hook member, and a releasing slide mounted upon the bars and adapted when pulled away from the hook member to shift the shank out of its engagement with. the stop to thereby permit the hook member to return. toward a position of alignment with the bars. a

4-. A device of the character described comprising a body formed of two parallel bars, a hook member disposed between the lower ends of said bars and pivoted thereto intermediate its ends, a shank pivoted to the rear end of the hook member and extending upward between said bars at an angle there to and formed with a shoulder upon its inner face, a pin extending between said bars and forming a stop with which said shoulder engages to prevent the upward movement of the shank, a cable attached to the upper ends of said bars, a slidable collar mounted upon the bars and adapted upon an. upward movement to engage with the upper end of the shank to shift the shank out of engagement with the stop pin, and a cable attached to said sliding collar whereby it may be relatively shifted.

5. A device of the character described comprising a body formed. of parallel bars, a pin connecting the upper ends of the bars, a pin connecting the lower ends of the bars, a hook member through which said pin passes intermediate the length of the hook member, a shank pivoted to the rear end of the hook member and extending upward and betweenthe bars at an angle thereto, this shank being provided with an inwardly projecting shoulder facing toward the upper end of the shank, a stop pin extending between said bars and with which said shoulder is adapted to engage to limit the upward movement of the rear end of the hook member, said shank when its shoulder bears against the hook member extending beyond the bars, a rectangular collar slidingly mounted upon said bars, and a cable attached to said collar whereby upon a downward movement of the bars relative to the collar the collar will strike the upper end of the shank to shift it in ward to release the shoulder from the stop pin and permit the hook member to shift toward a position of alignment with the bars.

6. The combination with a hoisting bucket, of means for automatically directing the hoisting bucket laterally comprising a hook for engaging the bail of the hoisting bucket, a cable supporting the book, a hook releasing cable, and a directing cable connected to the hook whereby the hook may be drawn laterally into engagement with the hail of the hoisting bucket, said releasing cable becoming slack when the hook is initially en-v gaged with the hoisting bucket, said supporting cable acting to draw the hook and the hoisting bucket laterally and the consequent tightening of the releasing cable acting to release the hook when the bucket has been drawn laterally.

7 The combination with a hoisting bucket, of means for directing it laterally comprising a hook formed to provide the body portion, means for holding said hook member at an acute angle to the body portion, a slidable releasing device on the body portion adapted to release the hook member to permit it to turn to ,a position of alignment with the body portion, 'a directing cable attached to the upper end of the body whereby it may be drawn laterally, a supporting cable attached to the upper end of thebody and approximately above the point to which the hoisting bucket is to be directed, and a signature.

JOHN W. LARSON.

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