US94046A - Avkjtboboug-h - Google Patents

Description

S. S. TURNER.

Sewing Machine. No. 94,046.

"Patented April 24, I869.

drawn the thread down through by the cam E",

communicated by the cam H AND WILIn-kRD' COMEY,

Letters Patent N 94,046. datedAngilst 24, 1869.

on sA'ME- PLACE.

mnovfim m SEW-IN Th'schaduls referred to in mesa Letters Patent and makingpaxt To all whom may concern Be it known that I, Sinner S. Tunxnn, of Westborough, in the county of \Vorcester, and State of Massachusetts, have invented a certain new and useful Machine for olare' that the following is a full and exact description thereof, rei'erencebeinghad to the accompanyingdrawings, and to the letters oi reference marked thereon.

The nature of m invention consists iu-thecomoh' nation and arrangement of parts, which can only be understood by an examination of the specification and drawings.

To enable others skilled in my invention, I will proceed the art to make and use to describe its construclimoings. v V

Figured is a, perspective view. showing he front of my'inachine. Y

Figure 2 is a longitudinal section of my machine.

Figure 3 shows the needle and ho k, as they appear above the stock, the hookabout seizing the them], preparatory to diawingit back through the stock.

Figure 4 shows the hook, as it appears after having the stock, the looper I) about entering theloop thus formed. The section at 3' of the hook shows a. groove made in the back of said hook, which serves to guide the looper, and thus cause it to enter between the threads forming the rim and use.

7 loop.

M, fig. 2, is the main shaft, which carries the face cams E 0, and cams ill D".

E is the needle, attached to the needle-carrier E,

which reciprocates in the bracket E, and is actuated fig. 2, which communicates its motion through thegarm E, shalt E, and arm E.

(P is the hook, attach d to the hook-carrierGPfivhich reciprocatcs in the bracket 0, and is actuated by the cam C, which communicates itsmotion through the arm 0, hollow shait G, and arm 0.

H and H are iced-rollers, to which motion may be actuating a ratchet, to impart .an intermittentmotion to the gears H, H", and H or by any other suitable device.

The loopcr 1), figs. 1 and 4, is. opcmtcd by the can] D and lever D, fig. 2.

Sewing Straw; and I do hereby deof the same.

E, so that the spool F partakcs'otthe motion of the needle 11).

1 is a tension-spring, so arranged that. it will bear upon the spool, and thus cause the necessary tension,

As the spool vibrates with tho necdle,-it will be soon, that by'proper adjustment of the F, the tension may be on or oil" from the thread, as required.

'lhe barKactsJn combination with the feed-roll H,'as a prcsscr-lbot. V

The upper iced-roll H is rabbctcd, so that it serves as a presser-toot for both strands of the straw, the shoulder of the rabbet serving as a guide for the upper strand, thus koepi it in proper relative position with the lower strand, xgch is guided by a fixed gauge for sewing.

My machine operates as follows: 7

The two strands or braids of straw to be sewed are placed on the feed in such a manner that the lower strand rests against the fixed guide, while the upper str'andis in the rabbet of the wheel H.

The needle E first advances, carrying the thread up through the s't0ck,the tension being on the thread. When the needle has passed through sutiicient-ly far, the tension is thrown oh, and the needle begins to retreat, thus forming a loop above the stock, through which the book 0 passes. This stage of the opera tion is represented in fig. 3. Then, the needle retreats while the hook is in the loop, the tension being '01), thus enabling tl e book to take the loop. Now, both hook and needle retreat, the tension being on", the hook carrying the loop down through the stock, as shown in iigA, sufiicientlyfiu' for the Iooperl) to seize it. It is then released from the hook, and held, while the stock is being fed along, in such a position that the needle inits second movement, the tension .being on,v may pass through it. ,The looper then releases it, and all the operations are repeated as before.

What.I claim as my invention, and desire in) secure by Letters Patent of-the Unit-edStatcs, is-' .1. The combination and arrangement of the' needle E, and hook 0, operating substantially as described, and for the purpose set forth; 1 2. The tension-spring F, in combination with the fixed cams F E, working substantially as described, and for the purpose set forth,

' SIDNEYE. TURNER.

Witnesses -WILLIA.M Enson, Fnssx G. Psnnnn.

The spool-carrier h, fig. 1, is attached to the arm unless it is held back by the siaiioinu-y cams l 1?.

cams or wedges F

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