US91318A - Improvement in sewing-machine - Google Patents

Description

M. 1. FERREN.

Sewing Machine.

No. 91,318. I Patented June 15, 1869.

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MYRON .LFERREN, OF STONEHAM, MASSACHUSETTS, ASSIGNQR TO HIMSELF AND WILLIAM J. BATTLES, OF SAME PLACE.

Letters Patent No. 91,318, dated June 15, 1869.

IMPROVEMENT IN SEWING-MACHINE.

The Schedule referred to in these Letters Patent and. making part of the same.

To all whom it may concern.-

Be it known that I, MYRON J. FERREN, of Stoneham, in the county of Middlesex, and State of Massachusetts, have invented a new'and useful Improvement in Sewing-Machines; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being bad to the accompanying drawings, forming part of this specification, in which- Figure 1 is a view of my invention, showing its mode of application to a sewing-machine.

Figure 2 is a view of the same, from a difl'erent stand-point.

Similar letters of reference indicate like parts.

This invention relates to an improvement in sewingmachines; and consists in a device for pressing the needle toward the face of the shuttle-race, for the purpose of preventing it from skipping or missing stitches when working over scams or inequalities in the fabric, which diificulty is a common fault with sewingsmachines.

A represents the bed-plate of a sewing-machine, and B, the needle-arm, for carrying the needle-bar a and needle b, working in the face of the shuttle-race c, all constructed and operating in the usual manner.

Behind the needle is a lever, d, attached at one end to a rock-shaft, e, which is vibrated by means of a rodand-lever attachment, g h by way of illustrating the operation of the lever d upon the needle, but is designedto be connected with the shuttle-driver, or other part of the mechanism of a sewing-machine, and receives its motion in concert with the movement of the needle.

The operation of the device is as follows, to wit:

After the needle has descended, and is in the act of rising to form the loop, the lever d moves forward, and presses the needle toward the face of the race, so that the shuttle will certainly pass through the loop and make the stitch, and at the moment the point of the shuttle enters the loop, thelever moves back again without interrupting the movement of the needle in ascending or descending.

' The lever acts on the needle by springing it outward just enough to cheat the object of presenting theloop of the thread to the shuttle, to make its passage through it certain, and thus prevent the loss of a stitch, which often occurs through the liability of the needle to spring or glance backward from the race at the moment of the passage of the shuttle, which obliquity of movement is caused by scams, or other inequalities in the fabric in which the needle is working at the time.

Having described the nature and the operation of my improvement,

I claim as new, and desire to secure by Letters Patent- The oscillating lever d, and rock-shaft e, in combi nation with the needle b, and shuttle-race 0, arranged and operating as described, for the purpose specified.

MYRON J. FERREN.

Witnesses:

W. F. Swnn'rsna, THOMAS H. J ones.

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