US1521113A - Safety pin - Google Patents

Description

Dec, 30,- 1924.

J. w. 'MACKEY SAFETY PIN Filed Dec. 4, 1922 To all "whom it may concern:

Patented ideas. 30, 1924. i

JOHN w. MacnnY, or DETROIT, inrcnrcnn.

sarnry PIN.

Application filed December 4, 1922. Serial No. 604,857.

Be it known that 1, JOHN W. Maonn r, a citizen of the United States of America, residing at Detroit, in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in Safety Pins, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to safety pins of that class commonly used for'securing sanitary napkins or other garments upon infants or adults, or employed for fastening together or supporting other articles or parts thereof, without danger of injury to the wearer or fabric or article from the sharp point of the pin limb which pierces and holds the garment or. supports the article, and the invention has for its object to provide a simple, inexpensive and etlicient device of this character.

The invention will be described in the following specification having appended claims clearly defining the novel features, and with reference to the. accomipanying drawings in which- Figure 1 is a perspective view of one form of the improved safety pin, shown open, and with the optionally used auxiliary cap plate pin point guard indicated by dotted lines;

Fig. 2 is a perspective view of the closed safety pin with the auxiliary cap guard plate shown in full lines, and

Fig. 3 is a plan view of the closed safety pin with the cap guard plate in cross sec tion, and indicating by dotted lines the final open position of the laterally thrown pointed limb of the device.

This improved safety pin is or may be formed wholly or mainly of or from a single piece of spring wire comprising a preferably straight main back arm 1, at one end of which the wire is formed into a primary coil 2, preferably having a plurality of convolutions through which the wire is passed axially and thence is passed backward to form an outwardly or downwardly arched or bowed limb 3 having a point 4 allowing it to easily pierce or pass through the fabric of a napkin or other article to be fastened or supported. At the other end of the main arm 1, the wire is formed into a second open coil 5, preferably having a plurality of convolutions between any two of which the limb point a may be engaged, as shown in Figs. 2 and 3, to lock the safety pin closed upon the fabric to hold the napkin or other article securely in place. 'The arched or bowed form of the closed limb 3, gives room between it and the main arm 1, for considerable thickness of fabric without bringing such strain upon the limb as would cause its accidental disengagement from the coil 5, from which, however, it may be readily released when a soiled napkin is to be substituted by a clean one, or when any retained article is to be removed.

It will be specially noticed that the axis of the primary coil 2 is in a plane which is angularly disposed relative to the axis of the second coil 5, whereby when the pointed limb 3 is disengaged from the coil 5, said limb will automatically open outward from the main arm 1, and will also be thrown laterally of the length of said arm at its pointed end 4, as shown in full lines in Fig. 1, and in dotted lines in Fig. 3, and into a position greatly facilitating attachment of the safety pin to a napkin or other article to be secured and where it will lie, should the pin be accidentally opened, in a position where it will not be liable to injure the child.

As thus far described in detail the safety pin may be efficiently used, but it is pre ferred to give it the further advantages accruing from use of a semicylindrical cap plate or housing 6, which is pressed into secure engagement with the pin point receiving coil 5 to hold the coil and assists in guarding the point l when the limb is in closed position, preventing injury to a wearer while also preventing entanglement of a napkin or other fabric with said coil.

This improved safety pin has a large capacity, that is many thicknesses of goods may be gathered into it and held without danger of its being opened by the strain. A pin of this character is also provided which is easily, quickly and conveniently applied or removed, and will obviate the liability of injury to the wearer of a napkin or other garment.

Having thus fully described my invention. what I claim is:

1. A safety pin formed of a continuous wire with a straight main arm, a sheath coil at one end of said main arm, a spring coil at the opposite end of said arm. the axis of one coil being at right angles to the IKH) 'the free end of said spring coil, said limb having a sharpened free end and said spring coil being operative to swing said limb longitudinally of the axis of said sheath coil with its sharpened end-engageab-le between the turns of said sheath coil to hold the limb in closed position.

2. safety pin comprising a main arm formed at one end with a spring coil and fabric engaging limb formed integral with the opposite end of said coil, said coil being arranged with its axis transversely of thearm and with said limb extending from said axis to swing said limb upon said axis,

to the other end of the main arm and adapted to receive between its convolutions the free pointed endof the limb to secure fabric upon said limb between it and said arm, and a cap plate held to outer portions of said sheath coil to guard the limb point and preventing fabric entanglement in said coil.

In testimony whereof I aiiix my signature in presence of two witnesses. p

. JOHN W. MAOKEY. Witnesses: Y Y i i H. C. UNDERWoon, ARTHUR MINNIQK.

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