US59496A - Improved manner of strapping blocks - Google Patents

Improved manner of strapping blocks Download PDF

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US59496A
US59496A US59496DA US59496A US 59496 A US59496 A US 59496A US 59496D A US59496D A US 59496DA US 59496 A US59496 A US 59496A
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blocks
strapping
block
sheave
pin
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66DCAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D2700/00Capstans, winches or hoists
    • B66D2700/02Hoists or accessories for hoists
    • B66D2700/026Pulleys, sheaves, pulley blocks or their mounting
    • B66D2700/028Pulley blocks with multiple sheaves

Description

UNITED STATES PATENT OEEIGE.
ALBERT Gr. WOLF, OF MYSTIC RIVER, CONNECTICUT.
IMPROVED MANNER `OF STRAPPING BLOCKS.
Specication forming part of Letters Patent No. 59,496, dated November 6, 1866.
To all whom it may concern:
Be it known that I, ALBERT G. WOLF, of Mystic River, in the county of New London and State of Connecticut, have invented a new and useful Improvement in Strapping Blocks; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this specication, in which- Figure l is an edge View of a double-sheave block strapped according to my invention. Fig. 2 is a face or side view of a single-sheave block strapped according to my invention. Fig. 3 is a vertical transverse section of the same. Fig. 4 is an edge view ofthe block shown in Fig 2. Fig. 5 is ahorizontal section ofthe same.
Similar letters of reference in the several figures indicate corresponding parts.
The nature of my invention consists in passing round wire around single or many sheave blocks in such manner that it serves to bind and strengthen the block, and at the same time clears the sheave-pin on both faces or sides of the block. This mode of strapping tackleblocks obviates the labor and expense of Eattening the wire. It also avoids the weakening of the metal by punching it to admit the ends of the sheave-pin through it. Sharp corners in tting are also avoided.
The use of round iron in the manner I shall hereinafter describe gives more strength with less weight of niet-al. Less skill to strap a block is required, for any good blacksmith who can make a chain-link can strap a marine or tackle block on my plan.
To enable others skilled in the art to lmake and use my invention7 I will proceed to desc ribe the same with references to the drawings.
A, Fig. 1, represents a link of round iron placed diagonally to the sheave-pin, around a double-sheave block. To tit this link of round iron to the block, a shallow groove, a, is cut in the faces and on the top ot' the block, as illustrated in Figs. 2 and 5. The top part of the groove runs diagonal to the sheave-pin,and is 'iutersected by, or rather continued by, the vertical portions of the groove in such amanner th at the groove runs down to the left of the pin on one face of the block and to the right of the pin on the other face thereof, as shown in Fig. 2, but more plainly in Fig. 5.
The suspending hooks and links which are usually furnished with tackle or marine blocks may be attached in the manner shown in the drawings, or in any other approved manner.
It is believed that iron, whether I iat, square, or round, if applied diagonal to the pin, is a great improvement in the strapping of blocks, and therefore, while I much prefer to use round iron, I do not wish to be understood as limiting my invention thereto.
I am aware that round iron has been driven into the body of a block in a diagonal manner; but it is obvious that iron thus applied will not bind the iibers ot' the' block together understrain, but, on the contrary, will tend to split or pry the wood apart.
Vhat I claim as my invention,and desire to secure by Letters Patent, is-
An iron strap applied around a sheave-block so as to clear the ends of the sheave-pin, on opposite sides of the center of said pin, substantially as herein described.
ALBERT G. WOLF.
Witnesses F. W. FRENCH, ALBERT WILLIAMS.
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