US1797523A - Safety pin - Google Patents

Description

March 24, 1931. P. DIPPEL 1,797,523

SAFETYTPIN Filed Aug. 22, 1927 i QWwW Patented Mar. 24, 1931 UNITE SATE SAFETY PIN I Application filed August 22, 1927. Serial No. 214,552.

This invention relates to a new and useful improvement in safety-pins the object of which is to produce a. safer safety-pin having the usual body and a needle-eyed piercing member, or movable spring pin, held securely against accidental detachment by a much longer tooth than hitherto used, formed by the non-pointed end of the single piece of spring wire used in its construction; which tooth is adapted to pass through and hold the piercing member by its needle eye in line with the adjacent head wire against which it is held by the spring pin firmly, the point of the latter over-lapping into the head of the pin, thus dispensing with any necessity for a sheath or guard attachment in a second piece of material. Hitherto a short tooth extending not much above the thickness of the piercing member and less than one-half of the distance across the body of the safety-pin has been generally used for this purpose, thus leaving open the entrance to the head of the safety-pin.

That portion of my improvement which is distinctly new consists in a long tooth extending nearly or quite across the body of the safety-pin so as to effectually bar the entrance to the head of the pin against the entrance of material pinned as well as to prevent by its great length accidental displacement, and to facilitate fastening by guiding the piercing member along its side till the needleeye engages its end, at the same time precluding escape of the piercing member to the other side of the safety-pins head.

A further object of my improvement is to produce a more reliable safety-pin for use on mens wearing apparel, one more easily operated by the feel of the fingers when unseen; one more easily attached, detached and constructed.

The drawing which accompanies this specification, illustrates and this specification describes one particular structure to which the invention is in no way restricted. The inventor reserves the right to make alterations which practice may demand, especially as to more appropriate forms for mens use, provided the alterations are comprehended tooth.

within the scope of what is claimed "in this specification and, accompanying drawing.

My invention will be better understood by reference to the accompanying 7 amended drawing forming a part of this specification 1 and in which Figure 1 is a view of a safetypin embodying my invention in an open position; Figure 2 shows the same in action and Figure 3 shows it closed. In each of these three figures the letter a denotes the ne-edleeye in and near the pointof the piercing member, or spring-pin, which extends from the coil 0 to the point of the same beyond the eye a; 6 denotes the long tooth formed by one end of the body which latter consists J Y of a head formed by three right angled bends or curves in the same plane, of the singlepiece wire, connected with the coil 0; and 0 denotes the coil at the hinge between the body and the piercing member, or movable spring pin, which coil increases the strength and spring of the safety-pin. l/Vhen the piercing member in Figure 1 is pressed up to bring the eye a over the end of the long tooth b it is guided by the side of the tooth Z2 and at the same time prevented from slipping to the other side of the safety-pin or out of position 7 to engage the end of the tooth if the latter were made shorter. Figure 2 shows the piercing member passing downward after the eye a has engaged the end of the longtooth b and Figure 3 shows the piercing member held firmly in line against the head wire of the body of the safety-pin, from which position it is impossible accident-allyto press it back over so long a tooth. This long tooth b is bent slightly outward from the plane of the body of the pin to facilitate its catching the eye a which is preferably elongated to correspond with a preferablyiiattened long;

loo

rearwardly toward said spring connection, then upwardly and terminating at a point near the main portion of said body member;

the upward extension being adapted to receive said eye thereon and the curve of said body member being so proportioned that the pointed end of said piercing member bears against it When being engaged with said up- Ward extension, said curve extending beyond the point when the pin is in its final closed position.

PHILIP DIPPEL, V V

Images