US607571A - Andrew paulson - Google Patents

Description

No. 607,57l. Patented July 19, I898.

A. PAULSUN.

GRAPPLE FURLIFTING LOGS. (Application filed Mar. 30, 1898.)

(No Model.)-

[5;] 77/5 flllorgeys.

mares ANDREW PAULSON, OF SNAKE, MINNESOTA.

GRAPPLE FOR LI FTING LOGS.

SPECIFICATION forming part of Letters Patent No. 607,571, dated July 19, 1898.

Application filed March 30.1898.

To all whom it may concern/.-

Be it known that I, ANDREW PAULSON, a citizen of the United States, residing at Snake, in the county of Marshall and State of Minnesota, have invented a new and useful Grapple for Lifting Logs, of which the following is a specification. r

The invention relates to improvements in grapples for lifting logs.

The object of the present invention is to improve the construction of grapples and to provide a simple, efficient, and powerful one especially adapted for lifting heavy logs and capable of securely clampingthe same and of preventing them from slipping or falling while being lifted. I

The invention consists in the construction and novel combination and arrangement of parts, as hereinafter fully described, illustrated in the accompanying drawings, and pointed out in the claims hereto appended.

In the drawings, Figure 1 is a perspective view of a grapple constructed in accordance with this invention. Fig. 2 is a detail perspective view of the top connecting-piece.

Like numerals of reference designate corresponding parts in both figures of the drawings.

1 1 designate the sides or arms of a log-engaging grapple, and these sides or arms 1, which are connected at their upper ends by a top piece or frame 2, are provided near their lower ends with hooks or spurs 3, extending upward and inward at a slight inclination and adapted to imbed themselves in a log below the center thereof, whereby the weight of the log will operate to hold the sides or arms in engagement with the same, thereby effectually preventing a log from slipping or falling while being lifted.

The upper ends 4 of the sides or arms are reduced and perforated, and the'top piece or frame 2, which is substantially rectangular, is provided at opposite sides of the device with projectingears 5, which are perforated to receive pivots 6 and which'are located at opposite sides of the reduced upper ends 4 of the sides or arms 1, the pivots passing through the parts and connecting them.

The sides or arms 1, which are. adapted to swing inward and outward on the pivots 6, are provided at their inner edges with perfo- Serial No. 675,773. (No model.)

rated enlargements, forming upper and lower eyes 7 and 8. The upper eyes are located a short distance below the top piece or frame 2, and the lower eyes are arranged a short distance above thespurs or hooks 3.

The upper eyes 7 receive short chains 9, which connect the upper portions of .the sides or arms 1 with a hoisting-chain 10 or other suitable flexible connection, such as a rope or cable. The hoisting-chain 10 is preferably provided at one end with a ring 11 to receive the end links of the adjacent chains.

The lower eyes 8 are connected by chains 12 with a pulley 13,-around which passes the hoisting-chain which extends upward through the opening 14 of the top piece or frame 2. As the hoisting cable or chain, which is attached to the upper flexible connections 9, extends downward to the lower connecting devices and has a running engagement or connection with the same it will be apparent that when there is an upward draft on the hoisting-chain 10 the sides or arms of the grapple will be drawn inward from two points and will be capable of securely grasping a log. The frame of the pulley 13 is extended below thewheel to form an eye 15, into which the adjacent end links of the chains 12 are linked. The upper end of the hoisting-chain is de signed to be provided with a suitable clevis 16, and it may be secured to any hoisting mechanism.

The invention has the following advantages: The grapple, which is simple and comparatively inexpensive in construction, possesses great strength and is capable of securely gripping a log. It is drawn inward into engagement with a log at both its top and bottom, and the weight of the log operates to hold the sides or arms of the grapple into engagement with it. The grapple, which is adapted to be used in connection with any character of hoisting mechanism, may be employed on log-carriers and analogous devices.

Changes in the form, proportion, and minor details of construction may be resorted to without departing from the spirit or sacrificing any of the advantages of this invention.

What I claim is- 1. Adevice of the class described, comprising a pair of arms or sides hinged at their upper ends and provided at their lower ends with means for engaging a log, a centrallyarranged flexible hoisting cable or chain extending downward between the sides or arms, and means for connecting the cable or chain with the sides or arms near the top and bottom thereof, whereby the weight of the load will operate to draw the sides or arms into contact with it, substantially as described.

- 2. A device of the class described comprising hinged sides or arms, short chains connected with the sides or arms near the upper ends thereof, a pulley, chains 12 extending from the pulley to the sides or arms and connected with the same near the lower ends thereof, and a hoisting-chain attached to the short chains and passing around the pulley and extending therefrom to the top of the de- Vice, substantially as described.

3. A device of the class described, comprising hinged sides or arms provided at their lower ends with engaging devices, the upper flexible connections extending inward from the upper portions of the sides or arms, the lower flexible connecting devices extending inward from the lower portions of the sides or arms, and a hoisting chain or cable attached to the upper flexible connections, extending downward therefrom to the lower connecting devices and passing upward therefrom, said hoisting chain or cable having a running engagement with the lower connecting devices, substantially as described.

4. A device of the class described comprising a top piece or frame having an opening and provided with ears, sides or arms pivoted to the ears and provided with spurs or hooks and having eyes near their upper and lower ends, a pulley, a hoisting chain or cable pass ing around the pulley and extending through the opening of the frame or top piece, connections between one end of the hoisting chain or cable and the upper eyes of the sides or arms, and means for connecting the lower eyes of the sides or arms with the pulley, substantially as described.

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

, ANDREXV PAULSON. lVitnesses:

OLE O. STAVIG, ENoK O. STAVIG.

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