US105087A - Improvement in embroidering attachments for sewing-machines - Google Patents

Description

w. T. & A. JOHNSTON.

Embroide ring Attachment for Sewing Machines.

- Patented July 5',18-7.-0.-

Ulhngnphur. Walhingion. n. a

UNTTED STATES PATENT OFFICE.

IMPROVEMENT lN EMBROIDERING ATTACHMENTS FOR SEWING-MACHINES.

Specification forming part of Letters Patent No. 105,087, dated July 5, 1870.

To all whom it may concern:

Be it known that we, WM. T. J OHNSTON and ALLEN JOHNSTON, of Ottumwa, in the county of Wapello and in the State of Iowa, have invented certaiu new and useful Improvements.

in Embroidering Attachments for Sewing-Machines; and do hereby declare that the followin g is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, making a part of this specification.

Our invention is intended as an improvement upon the embroidering attachment for sewing-machines for which Letters Patent were issued to William T. Johnston July 27, 1869 and consists, first, in providing the rod, to the lower end of which the stud for operating the vibrating arms is attached, at its upper end, with a clamp and set-screws, for the purpose of connecting the same with the needle-bar; and, second, in a novel arrangement of the said vibrating bars or arms, and the manner of operating the same.

In order to enable others skilled in the art to which ourinvention appertains to make and use the same, wewill now proceed to describe its construction and operation, referring to the annexed drawings, in which Figure l is a front view of our device, and Fig. 2 is a side view of the same. Fig. 3 is a bottom view of the clamp, and Fig. 4 is a per spective of the presser-foot.

A represents the plate, which is secured to the sewing-machine and grooved on its front face, substantially in the same manner as in the patent of Wm. T. Johnston, above referred to. At the upper end of the plate A is secured the cross-bar or plate B, having the rods upon which the spools are placed. At the lower end, upon the front side of the plate A, is pivoted a bar, 0, which is slotted longitudinally at its upper end for about one-half its length. At a suitable point between the lower end of the longitudinal slot and the pivot-point of the bar 0 said bar is somewhat enlarged, and provided with a slot running across the bar, and

through this slot a post, a, projects from the plate A, said cross-slot allowing the bar 0 to move from side to side the required distance.

'from the spools to the needle.

Upon the post a are pivoted the two arms D and E, the lower ends of which are constructed substantially in the same manner as described in the former patent, for guiding the threads The lower, or rather inner, one, D, of these arms is, below the post a, provided with a small slot, through which projects a pin, 1), from the bar O. The outer arm E extends a short distance above the post a, and is, at its upper end, provided with a small slot, through which projects another pin, d, from the bar 0, the post a and pins 12 d being on a straight line when the bar 0 is perpendicular-that is, parallel with the plate A.

It will readily be seen that by moving the bar 0 from side to side the arms D and E constantly cross each other, or vibrate from side to side, this change in the position of the arms being efl'ectcd, as will be hereinafter described, every time the needle moves upward, and the two threads, which are of difi'erent color, passing one through each arm.

The bar 0 is moved from side to side in the following manner: Upon the lower end of a rod, G, is a small socket, in which is pivoted a cam-shaped stud, c. This socket or tube, with stud e, is passed from the front through the longitudinal slot in the bar 0, so that the stud will be in the grooves on the plate A. Upon the upper end of the rod G is a head, H, to the rear side of which is pivoted a clamp, I, provided with set-screws i z. This clamp is .passed around the needle-bar, and secured by the set-screws. When the needle descends the stud 0 moves downward in one of the side grooves in the plate A, the slot in the bar 0 allowing it to do so without changing the position of said bar; but when the needle ascends the stud passes through one of the diagonal grooves into the other side groove. This motion throws the bar 0 .to the opposite side from where it was before reversing the position of the arms D and E.

Having thus fully described our invention, what we claim as new, and desire to secure by Letters Patent, is

l. The bar 0, in combination with the rod G,-provided at its lower end with the stud e,

and at its upper end with the head H, the we have hereunto set our hands and seals this clamp I, and set-screws t' i, by which the rod 19th day of J anuaryl, 1870.

is connected with the needle-bar, all con- W. T. JOHNSTON. L. 8.]

structed and operating substantially as and ALLEN JOHNSTON. [L. 3.]

for the purposes set forth. Witnesses to signature of W. T. JOHNSTON:

.2. The arrangement upon the grooved plate H. B. HENDERSHOTT,

A of the post a, bar 0, 'with its pins b d, and LOUIS GEBRIGH.

the arms D E, all constructed and operating Witnesses to signature of ALLEN JOHNS- substantially in the manner and for the pur- TON: poses herein set forth. G. W. BUTTS,

In testimony that we claim the foregoing WILLIAM NUNN.

Images