US67341A - Joseph w - Google Patents

Description

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Letters Patent No. 67,341, dated July 30, 1867. Y

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TO ALL WHOM IT MAY CONCERN:

Be it known that I, JOSEPH W. NORCROSS, of Io. 108 Lexington strcetQEast Boston, in the county of Suffolk, and the State of Massachusetts, have invented a new and improved Clothes-Line and Hook-Block; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable those skilled in the a'rt to make and use the same, reference being had to the accompanying drawing, forming part of this specification, in which drawing Figure 1 represents a transverse vertical section ot' this invention.

Figure 2 is a perspective view of the same.

Similar letters of reference indicate corresponding parts.

This invention relates to a clothesline or hook-block, which is vmade in one continuous piece of iron or other metal, in such a, manner that a stronger and more durable article is produced than the ordinary wooden clothes-line or hook-blocks; and, furthermore, the expense and labor in manufacturing the blocks are materially reduced.

A represents the shell of my clothes-line or hook-block, which I produce either of malleable iron` or other metal by casting, or of wrought iron by swaging or striking up. Such blocks, commonly known as *snatchblocks, are generally made of wood, or perhaps sometimes of metal, but always, as far as I know, of`several pieces, and the expenses of making such blocks have been always so great that the same have never come into general use. The shells of these snatch-blocks are provided with an aperture, a, so that the line can be conveniently hooked in or out, and by reason of this aperture one of the'Chcek-pieces is detached at one end, and has to depend for its support entirely upon its other end. A loop or eye, I1, which is also castor otherwise made solid with the shell A, serves to attach the same to a hook or other fastening, as shown in fig. 1.

My blocks can be made at comparatively small expense, so that they come within the reach of the poor as well as the rich, and, furthermore7 they are very durable and not liable to get out of order.

I am well aware that the shells of common pulley-blocks have been cast ot iron or other metal, but as far as .I know it has never been attempted to cast or otherwise produce the shell of a snatch-block, together with its loop or eye l1, out of one continuous or solid piece. In cast-ing the shells of ordinary pulley-blocks, the pattern is made in two parts, and it forms its own core; but the pattern for my snatch-bloek cannot be made in the same way, since it would leave the open end without support. It is therefore necessary to make a pattern provided witha core print corresponding tothe size ofthe opening for the sheave and to the aperture a., and by using a core of the proper ferm all di'iculty in casting my block is ohviated. In making my snatch-block of wroughtiron suitable swages, dies, or stamps will he employed to give to the metal the required shape, and after this has been accomplished the shell is bent over a mandrel or former of the required shape. I do not wish to lay claim to any particular process in casting or forging the blocks; but I consider the article itself, as shown in the drawing, of such value for the public, that I consider' myself' entitled to a protection in manufacturing the same.

What I claim as new, and desire to secure by Letters Patent, is

A clothes-line or hook-block, the shell of which is provided with an aperture, a, and loop b, and made in one continuous piece of iron or other metal, as shown and described.

This specification signed by me this twentieth day of April, 1867.

JOSEPH W. NORCROSS.

Witnesses:

W. HAUrr, G. Bane.

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