US1777919A - Safety pin - Google Patents

Description

Oct. 7, 1-930. G. w. HAwEs 1,777,919

SAFETY PIN Filed June 929 INVENTOE: GEODGE w. HAWKS.

Patented Oct. 7, 1930 GEORGE WILLIAM HAWES, on eeiit afloi rijnieg em ts;

Application filed June 3,

This invention relates to safety pins and especially to the type which comprlses two relatively movable parts, one carrying a guard member and the other a pin point to b locked inthe guard member.

A number of devices of this type have been proposed which are open to objection in that they fail to provide the desired added security, orare too expensive to construct or diificult to operate. Others are unreliable in that a slight deformation of the pin would render them inoperative or have coiled or hooked parts which become entangled with the material to be pinned together. i

The object of the present invention is to provide an improved safety pin whlch is free from these disadvantages.

The invention consists in" the construction, combination and arrangement of parts hereinafter described and more particularly pointed out in the appended claims.

Referring now to the accompanying drawings, which-illustrate, byway of example, one convenient embodiment of the invention,

Figure 1 is a side elevation of the improved pin in open position t Figure 2 is a side elevation of the closed position, and a Figures 3 and 4 are sections on thelines 33 and 4-4 respectively of Figure-2.

The improved pin comprises two portions which for convenience maybe called a pin portion and a guard or locking portion. The

pin portion and guard portion are indicated silient metal and consists of a frontpart 1 generallyby the letters A and B respectively. i i

The pin portion A is made of wire of reformed with a point 2, and a rear part3 connected to the part 1 by a substantially semicircular bend 4". The rear part 3 is formed with a loop 5 which has a short U-shaped slot 6 in front and a longer U-shaped slot 7 at the rear. The loop 5 isclosed by wrapping the end ofthe wire tightly around the part pin in I v 1-: i "The; guard iportion 1 B iconsists of a wire ipa-rt 10 whichuis secured'at one e'ndin a guard umember 11; About midwayibetiven its ren ds thjekwire part-J10 is bentizlaterallyrfrand then upwardly to form aUtshapedibend""lQQ-and uiS-JfQrmeQh at its ilowercend awithia smalliloop :13whicha loosely -embraceslthe part 31 0fthe pin portion below the ends ofiit he loop 5.@ i i The guard member 11 may be madeias shown-ironr a-singlespieceotthin:sheetnietal. ln; thisvform therear portion closely engages the wire}: 10 and is formed with: two :flanges rl4z whichiengage each otherlw The front por-J tion has two 1 flanges; E15,; iivhichl: engage ithe outer surfaces of the flanges 14. ilihetflarlges ul ien l ay be connected together by. any suitable means; or maybe; merelya pressed to get he 1, j The fla111gesl5; =are separated by ;the iianges ll land hollow part 16, isrtliusrfornied lat: the front oi the guard 11. The lower edge ot the guard-fis shapedi to :providewa downwerdlr ex nd ng, ip i d r I The operation ot the. devii'ceis asfo1l0l-ws:- r Assuming that the pin ;is in the; openposias shown; in riiull; lines in Figure 1 the 1pm 1 is inserted through the materials to :be

pinnedtqgeth en} and; is; then pressed rearlw rdlyx so a tto morei e ip nnvnint 2 p teith rf i w i he p i-M1 2 onhe guard h pin ipoin iszt en g edi e heE-e to 111 1 1ip r ohfl fiet e guar as ndi ated by he chai -dei ed; ines: ez ligl 'e 1, the i n d scribed eingisimilarateith'e t elesinsnp mt on o aie rl ina y f yr areihetp n p tt nhtis th fimor towards the' guard l1" atoicause theipin point 2 to move Yup intoqthefclosed upper-t part'oii the hollow ;poi;tipn;1;6 and thejibendgl2i-toslidewdown the iil ohg-tslotl'la The ibIldr-TQ xreachs E'the end of the part 9 andizthe point E2 3 reaches the? limit -of its moveinentriiito the guard almost-simultaneousl'yta l When thi-s position is reached the ;partl.9eis nap (past anemia 12 and the latter enters the short slot 6, as indicated in Figure 2. In this position the pin point 2 is securely locked in the guard 11, and as the rear part of the pin portion presses rearwardly against the bend 12, the latter remains in the short slot 6 and has no tendency to enter the long slot 7. The part 9 forms a further obstacle to the entrance of the bend 12 into the slot 7 and the pin thus remains securely locked against accidental release of the pin from the guard 11.

The pin is of simple construction and is free from any coiled or hooked parts of a kind which would become entangled with knitted fabrics. It is, moreover, inexpensiye and easy to operate as well as strong, reliable and eflicient. 7

To open the pin the closing operation is reversed. That is to say, the downwardly extending part 9 is pressed forwardly over the bend12 and the latter is slid up the slot 7 to bring the pin 1 to the position shown in dotted lines in Figure 1. The pin point is then pressed rearwardly through the open side of the hollow part 16, pressed laterally and allowed to spring out to the full line position in Figure 1.

It may be mentioned that in the drawings certain dimensions and proportions are somewhat exaggerated for clearness of illustration. 7

The foregoing description and accompanying drawings are given byway of example only, and modifications within the;scope of the appended claims may be made without departing from the'invention.

I claim:

1. A safety pin-comprising a pin portion and a :guard port-ionrco'nnected so as to be capable of relative movement longitudinally of each other, a loopon the pin portion h'aving a long slot and a relatively short slot, both extending longitudinally of the pin, z't'member on the guard portion adapted to receive a pointed end on the pin portion, and a part on the guard portion arranged to enter said shor t slot to lock said pointed end in Said member or to enter said long slot to permit release of the pointed end fromsaid member. 2. A safety pin" comprising a pinportion "having at the rear thereof a closed loop formed with a short front slot and a long rear sl'ot, a guard member having a hollow front portion opefn at the rear 'at the lower end only, a wire member rigidly connected to said member 'at the rear thereof and slidably connected tothe pin portion' at a "point' below said loop, a laterally extending parton said wire member arranged to engage said sh'ort slot to lock the pin in end of the pin to be'withdr a'wn into engagement with the lower end of said hollow por- GEORGE WILLIAM HAWES.

"the closed hollow portion of said member 7 and to engage thel'lon g'slot to permit the free .-t;ion in which withdrawnposition said free

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