US72829A - John panning - Google Patents

Description

` J. FANNING.

Sewing Machine.

' No. 72,829. Patented Dec. 31, 1867.v

N4 PETERS, Pmc-Lmmgnpher. vla-ningun, mc.

JOHN FANNING, OF BROOKLYN, ASSIGNOR TO JOHN S. ANDREWS, OF

.NEW YORK, N. Y.

Letters-Patent 10.722,829, dated December s1, 1867.

IMPROVEMENT IN SEWING-MACHINES.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, JOHN FANNIG, of Brooklyn, in the county of Kings, and State of New Yorl, have invented, made, and applied to use, a. certain new and usefulImprovcment in Sewing-Machines; and-I do hereby declare the following to be a full, clear, and exact description of the said invention, reference being had to the annexed drawing, making part of this specification, wherein- Figure 1 is an inverted plan of a sewing-machine, showing my improvement, the looper being about to enter the loop of needle-thread, and i Figure 2 is a similar view, showing the loop of needle-thread distended ready for the needle to pass through it. l

Similar marks ef reference denote'the same parts.

. The object of thisinventionis to provide means for sewing with asingle looped stitch, or with a two-thread looped stitch, by the same machine, with .avery slight change of the parts.

I will proceed to describe the machine asradapted to sewing with two threads, and then point out my feature of improvement. p' i I a is the bed 'of the machine, above which is the arm, pressure-foot, needle-bar, and arm moving the same, not, however, shown in :the drawing, as they may be of any desired character. b is the pulley, to which power is applied to revolve the shaft c and cam d, to aetuate the machine'. e is a crank-pin in the cam d, that, moving in a slot in the lever f, gives motion to it and the needle-bar that is connected' with its opposite end. g is the feed-bar on a fulcrum, 2,. the roghened end 3 passing through an opening in the bed. 4 is the portion of the c am d that gives motion to the feedbar g. g is the spring to keep the bar to its cam. The lower needle or loopei` h is on a bar, z', that is connected by a joint to the lever so asv to bereciprocated thereby. This bar i slides through an eye in the lever k, between the lever feed-bar g andthe bed a; and this lever c is moved by the part 5 of the cam d; and k' isthe spring te keep the lever k to its ca m'..

The lower or under thread passes through the eyes 6, 7, and 8, from a spool, under suitable tension; thence through the eyes of the looper h, as indicated by the blue line, fig. 1. These features, however, do not consti tute my invention, the sewing being performedby the usual concatenations of the thread; that is to say,the looper passes through a loop of needle-thread on one side of the needle z, that draws up above the clothreenters, and tahes'a loop oil the under needle or looper h, that, having previously crossed the path of the needle w, and withdrawing, slips the previous loop of upper 'or needle-thread off upon 'the loop of lower thread around the upper needle, and so on. i I

I make use'of a movable finger, o, that is-attached to the under side of the bed a. by a set-screw or other convenient desice, so that it can be turned out of the way when' the machine is used with two threads. When only one thread is employed, the finger' ofoccupics the position shown in the drawing, with its end nearly in contact with the needle, and lying between the looper t and the bed a, as in iig. 2.

It is to be understood that, when but one thread is employed, the looper t passes forward and through the loop of needle-thread enl one sido of vthe needle, as seen in iig. l.. Then, after the needle has been drawn up, the looper z, by the cam 5, is made' to erosstheneedles path, and is drawn back (by the lever as the needle again descends.V v The loop of threadjheing over the looper h, and the ieed carrying the cloth 'away from the finger o, the drawing back of the looper h causes the thread of the side of the loop next the bed a to draw across the point ofthe nger o, and be detained-while the side ofthe loop furthest from the bed is moved along by the frictionupon' the looper, and by a sliglitfincline in its surface, so that the loop is spread around thepoint when the needle passes through, thereby insuring k'the proper looping ci' the thread. The looper h retires,-dropping its loop around the needle, and goes forward, taking another loop of thread from the needle.

What I- claim, und desire to secure Letters Patent, is-

The movable nger o, in combination with the looper h and rever 7c, to which motions are given by the lever f and cam 5, as andi-'or the' purposes specified. l*

In witnesswhereoi, I have hereunto set my signature, this fourth day of October, A. D.1867.`

.JOHN FANNNG.

Witnesses:

CRAs. H. SMITH, GEO. D, WALKER.

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