US790827A - Grapple. - Google Patents

Description

.PATENTED MAY 23, 1905. v. GOBTZ, JR. GRAPPLE APPLICATION FILE-D DBO. 1,1904.

NITED STATES lcatented May 23, 1905.

PATENT Orrrcn.

GRAPPLE.

SPECIFICATION forming part of Letters Patent No. 790,827, dated May 23, 1905.

Application fil d December 1, 1904. Serial No. 235,072.

more especially adapted for use in the collection of sugar-cane from the fields.

The principal object-of the invention is to provide a grapple so constructed and cooperating with the elevating means that the jaws will completely close beneath the load to be elevated before the actual elevation of the load commences during the initial movement of the elevating means, whereby is insured the grabbing of the whole heap before the grapple begins its rise from the ground, and at the same time the grapple is of a strong and rigid construction as compared to grapples having flexiblymounted working elements.

Another advantage of the device is-in the arrangement and operation of the tripping mechanism so that the grapple is not unhooked at any time from the elevating-cable, but the discharge of the load is automatic by the gravitation of the grapple upon a slack in the elevating-cable, the tripping-cable being held taut and the peculiar position and disposition of the tripping-arms relatively to the pivotpoint of the grapple-jaws providing a greater leverage for swinging the jaws on their pivotal axis, and hence a more positive and quicker discharge of the load.

Other objects and advantages will appear from the following specification, and the particular points of novelty will be more distinctly pointed out in the claims.

In order that the said invention may be more clearly understood, reference is had to the accompanying drawings, illustrating the preferred embodiment of the same, in which like characters designate corresponding parts in the several views, and in which Figure 1 is a side elevation of asuitable canecart with the improved grapple suspended thereon; Fig. 2, a view in side elevation of the grapple in its open position; Fig. 8, anend elevation of Fig. 2, and Fig. I a view in side elevation of the grapple in its closed position.

For the purpose only of illustrating more clearly its operation in Fig. 1 of the drawings the grapple has been illustrated as operatively associated with a novel form of cane-cart, specifically described in and forming the subjectmatter of a separate application filed August 11, 190 Serial No. 220,432.

Briefly, a suitable vehicle is provided with a swinging boom 1, swiveled to the central mast 2, stayed at its outer end by the stay-rod 3 and providedat its lower swiveled end with the operating-handle 4, 5 being an extensible and collapsible support for the grapple carried by the swinging boom.

6 6 and 6 are tackle and blocks, respectively, swung from the boom and forming the elevating means for the grapple.

7 is a tripping-cable having diverging ends 7 connected to the tripping arms of the grapple. It will be noted that the trippingoable 7 at its outer end reeves over a pulley in the double block 6 of the block-and-tackle arrangement, while the inner end of said tripping-cable reeves over a pulley (not shown) located on one side of the mast 2 in a position substantially opposite the pulley 8", hereinafter referred to, the free end of the tripping-cable thence passing downwardly along the mast 2.

8 is a cable reeving through pulleys 8 and 8 for operating extensible support 5, and 9 represents stay-rods for the central mast.

As clearly illustrated in the drawings, the grapple comprises the jaws A and B, provided with the teeth a b, projecting inwardly from the long arms al), suitably spaced rigidly apart, as at '0, and converging toward a common center and pivoted together, as at C.

A B are spaced extension-arms forming substantially diverging continuations of the jaws A B, respectively, and at their outer ends are pivotally connected, as at do, with the spaced links D D, respectiyely, which in turn are pivoted together at their other ends, as

and links D D, as seen in Fig. 2, when the lazy-tongs are collapsed and the grapple open and extending laterally of the grapple who the jaws are closed, as in Fig. 4C. a

The grapple or grab being in the open position, as shown in Figs. 2 and 3, ready to close around a bundle of cane and the block 6 hooked onto the pivot (Z, the mule hitched to the cable 6, pulling on same, first extends the lazy-tongs, then in the position indicated in Figs. 2 and 3, until the parts assume the position indicated in Fig. 4, whereby the grapple or grab is not elevated from the ground until the hooks have been completely closed around the heap, when the load is elevated to the position shown in Fig. 1. The grapple being in its elevated position, to dump a load it is simply necessary to hold the cable 7 taut and slacken the cable 6, when the weight of the load itself will automatically trip the grab, the diverging ends 7 of the cable 7 being suitably secured to the tripping-arms A B.

Having thus described the invention, what I claim is 1. The combination with a grapple, comprising pivoted jaws, and means for completely closing said jaws beneath the load to be elevated upon initial operation of the elevating means but prior to theinitial elevation of load; of tripping-arms extending outwardly from said jaws below the point of their pivotal connection.

2. The combination with a grapple, comprising pivoted jaws, and means for completely closing said jaws beneath the load to be elevated upon initial operation of the elevating means but prior to the initial elevation of load;

of tripping-arms extending outwardly from said jaws at substantially right angles thereto, below the point of their pivotal connection.

3. The combination with a grapple, comprising pivotally-mounted jaws having extension-arms forming substantially diverging continuations thereof; of a pair of pivotinglinks pivotally connected at their diverging ends, respectively, to said extension-arms and forming therewith a lazy-tongs arrangement; and tripping-arms extending outwardly from said jaws below the point of their pivotal connection.

4. The combination with a grapple, comprising pivotally-mounted jaws having extension -arms forming substantially diverging continuations thereof; of a pair of pivotinglinks pivotally connected at their diverging ends, respectively, to said extension-arms and forming therewith a lazy-tongs arrangement; and tripping-arms extending outwardly from said jaws at substantially rightangles thereto below the point of their pivotal connection.

5. The combination with a grapple, comprising a pair of jaws pivotally connected together at their upper ends, having inwardlyextending teeth at their lower ends; of spaced extension-arms forming substantially diverging continuations of said jaws; a pair of piv oting-links pivotally connected at their diverging ends, respectively, to said extensionarms, and forming therewith a lazy-tongs arrangement; and tripping-arms extending outwardly from said jaws below their pivotal point.

6. The combination with a grapple comprisinga pair of jaws pivoted together at their upper ends and provided at their lower ends with inwardly-extending teeth; of spaced extension-arms forming diverging continuations of said jaws; a pair of spaced links pivotally connected together at one end and at their other ends respectively pivoted to the ends of said extension-arms and forming therewith a lazy-tongs arrangement; and tripping-arms extending outwardly from said jaws below their pivot point and adapted to project through and above said spaced extension-arms and links when the grapple is in the open position and transversely of the grapple when in its closed position.

7. The combination with a support, of a grapple, comprising a pair of jaws pivotally connected at their upper ends and provided at their lower ends with inwardly-projecting teeth; spaced extension-arms forming substantially diverging continuations of said jaws; a pair of spaced links pivotally connected togetherat one end and at their other ends pivotally connected respectively to said extension-arms and forming therewith a lazy-tongs arrangement; tripping-arms extending outwardly from said jaws at substantially right angles thereto below their pivot-point, an operating-cable connected at one end to the top of said lazy-tongs arrangement and suspending said grapple from said support; and atripping-cable carried by said support and connected to said tripping-arms.

In testimony whereof I aflix my signature in presence of two witnesses.

VALENTINE GOETZ, JR.

Witnesses R. J. Lu GARDEUR, CHARLES L. ERICHE.

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