US138638A - Improvement in hemmers for sewing-machines - Google Patents

Description

H. 12. Genuine & R. s. BAR NUM. V Hammers for Sewing-Machines. N0. 138,638. v PatentedMay6,1873.

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UNITED STATES? PATENT 0F ICE.

HARRY o. GOODRIGH AND RUSSEL s. BARNUM, or onrcneo, I INOIS.

IMPROVEMENT lN HEMMERS FOR SEWING-MACHINESQ Specification forming part of Letters Patent No. 138,638, dated May 6, 1873; applicat n filed February 24, 1873.

To all whom it may concern:

Be it known that we, HARRY O. GOODRICH and RUssEL S. BARNUM, of the city of Chica-go, in the county of Cook and State of Illi- 3, an edge view of the clamp; Fig. 4, a section on line a: of Fig. 2; Fig. 5, a view of the rod A detached; Fig. 6, a section on line 3 of Fig. 1; Figs. 7 and 8, another'form of the hemmer; and Figs. 9 and 10, a modification.

Our invention consists in an adjustable clamping device for securing the rod to the bed-plate of the machine, and in the novel construction of the hemmers, as hereinafter described.

In the drawing, A represents a rod, bent at right angles, to the arm 0 of which the hemmers are connected; B, clamp for securing the rod to the machine. This clamp consists of a single plate, bent into the form represented in Figs. 3 and 4, and forming, when thus bent, two spring-plates, b c, not in contact with each other. The end of the portion 1) is bent, as shown, at d, to receive the rod A. The end of c is formed, as shown in the drawing, and comes in contact with the rod A. The clamp is provided with a slot, 01 to receive the set-screw. 0 represents two hemmers, f g, and a socket, h, between the same, all made from a single piece of sheet metal. These hemmers are of two sizes; '5 is the point of one, and k the point of the other.

In use, the hemmer is placed upon the part c of the rod A by means of the socket h. The point of the hemmer is properly adjusted relatively to the needle, and the clamp B properly adjusted relatively to the hole in the bedplate of the machine, which receives the setscrew, and then secured to the machine by the set-screw, in doing which the two parts b c of the clamp are brought together, and

the end of 0 made to press with onsiderable force against the rod A, holding it firmly in position. 1

The position of the clamp may e reversed, as shown in Fig. 2, and it can located at any desired point on the rod A, c that the hemmer, when made as describe can be attached to a great variety of sewi -1machines, since the slot in the clamp B ca be brought over the hole for the set-screw} in the bedplate, although its position in I iferent machines will vary considerably.

By reversing the position of th; hemmer 0, either of the two f g may be used J t pleasure; and another set of similar hem u rs of other sizes may be made to go with th e ttachment.

Figs. 7 and 8 represent anot er mode of constructing this heinmer.

This mode of constructing th hemmers (J is very cheap, and brings two emmers of different sizes upon a single pl e, while the the clamp B furnishes a ready ode of connectin g the attachment to vario machines.

It is evident that other atta ments may be so made that they can be nnected to this rod A by means of a socket,

In Figs. 9 and 10 another for]. of hemmer is represented; and it is design to be connected to the resser-foot of th machine by passing the rod D into a hole th i ein.

A single hemmer can be used I ith this rod and clamp as well as a double. I or a single hemmer, or other single attach ent, the rod A may be straight, and the att chment can have a socket, at right angles t that shown, to he slipped over the end of th traight rod.

What we claim as new is as f lows:

1. The clamp B, constructed 1 and for the purposes specified. 1 i

2. The double hemmer, here I described, consisting of the two hemmers 1 and socket h, constructed substantially as a for the purpose specified.

HARRY O. G ODRICH. RUSSEL S. B RNUM.

Witnesses: 1

E. A. WEST, j 0. We BOND- i

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