US587306A - Edwin t - Google Patents

Description

(No Model.)

. E. T.GREENPIELD.

SAFETY PIN.

No. 587,306. I Patented Aug. 3,1897.

ATTORNEY UNITED STATES PATENT FFICE.

EDWIN T. GREENFIELD, OF NEW YORK, N. Y., ASSIGNOR OF ONE-HALF TO CHARLES J. KINTNER, OF SAME PLACE.

SAFETY-PIN.

SPECIFICATION forming part of Letters Patent No. 587,306, dated August 3, 1897.

Application filed December 31, 1894. Serial No. 533,437. (No model.)

To all whom it may concern:

Be it known that I, EDWIN T. GREENFIELD, a citizen of the United States, residing at New York, in the county of New York and State of New York, have made anew and useful Invention in Safety-Pins, of which the following is a specification.

My invention has for its object the production of a safety-pin which shall be cheap of construction, simple and efiicient, and will remain securely locked when once placed in closed or connected position in the material to be pinned or fastened; and to this end it consists in the novel form of pin hereinafter described, and particularly pointed out in the claims at the end of this specification.

Figure 1 of the drawings represents a side elevational view of my improved safety-pin in closed or connected position. Fig. 2 is a similar side elevational view of the same in open or disconnected position. Fig. 3 is a similar side elevational view of my invention provided with means for more firmly locking the parts of the pin together.

I take a single piece of steel wire of the desired length and coil it upon itself so as to form asingle coil 0 at its middle, which coil through its resiliency causes the'pointed or pin part 19 to assume the position shown in Fig. 2. I then coil one end of the wire into a second coil 0, of approximately the same size as the coil 0, leaving a sufficient end to complete a third coil 0 the axis of which is normally substantially parallel to the lineal body portion of the pin joining the two coils c c. This coil 0 acts to sustain and protect the point p when in connected or locked position, as shown in Fig. 1. The coil 0 acts as a hinge between the body portion of the pin and the pin proper, while the coil 0 acts as a similar hinge between the end of the body portion of the pin and the looking or protecting coil 0 For the purpose of rendering the pin more secure when the parts are locked together in the manner shown in Fig. 1 I sometimes bend the end of the pin 19 in such manner that when stress is put upon the side parts to w it will cause the bent point or end to enter between the individual wires of the coil 0 thus preventing the point from being drawn out of its surrounding coil. might be produced by one or more slightlybarbed points located near the end of the pin where it bears upon the inner face of the coil 0 The manner of thus locking the parts together is clearly illustrated in Fig. 3 of the drawings.

In using the pin the operator takes hold of the coil 0 with the forefinger and thumb of one hand and inserts the point 19 through the material to be fastened. He then takes the coil 0 between the thumb and first finger of the other hand and bonds it outward against the resiliency of the coil 0. Finally, bringing the two parts together, he releases his hold upon the coil 0 so as to allow the pointp of the pin to enter said coil 0 as shown in Fig. 1.

By making the coil 0 to approximate the diameter of the coil 0 it will have a frictional bearing between the cloth or other material to be held and the outer portion of the pin, thereby giving greater security and insuring the permanent locking of the parts together when in position.

Having thus described my invention, what I claim, and desire to secure by Letters Patent of the United States, is-

1. A safety-pin composed of a single piece of Wire coiled upon itself in three coils, two of said coils lyingin substantially the same plane as the body portion of the pin, the third coil having its axis substantially parallel with the body of the pin, the second coil being of such diameter as to act frictionally against the material and hold it firmly against the removable portion of the pin, substantially as shown and described.

2. A safety-pin composed of a single piece of wire having two coils located substantially in the same plane as the body and movable portions of the pin, and a third coil the axis of which is parallel to that portion of the pin which joins the first-namedcoils, the movable portion of the pin being provided with a holding device and a bent end, substantially as shown and described.

3. A safety-pin composed of a single piece of wire having three coils, one of which acts to separatethe parts of the pin, another to The same eflect also lock the parts together 1nd constitute a holdscribed my name this 29th day of December, ing and safety attachment for the point, and 189%.

another to hold the latter coil in locked po- EDXVIN T. GREENFIELD. sition, the point of the pin being provided 5 With means for looking it between the coils of \Vitnesses:

the holding and safety attachment. C. J. KI'NTNER,

In testimony whereof I have hereunto sub- M. M. ROBINSON.

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