US1373124A - Safety-catch - Google Patents

Description

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' SAFETY CATCH.l

` APPLICATION FILED mmv. 1920.

1,373,124.v Pafenamr. 29,1921.

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JOHN FIELDING, OF )PROVIDENCE` RHODE ISLAND. ASSIGNOR OF ONE-HALF T0 JOSEPH P. WHITAKER, OF APPONAUGH. RHODE ISLAND.

SAFETY-CATCH.

.To 1f/f 'lr/loza it muy concern lle it lmmvn that I, Jenn FreLniNo, a citi- :aen of the Iinited States, and resident of the city of Providence, in the county of lhfovidluice and State of Rhode Island, have invented certain new and useful Improvements in Safety-Catches, of which the following a specication.

This invention relates to safety catch members for pins, and has for its object to provide an improv-id construction of keeper fhich comprises a pair of spaced-apart side ears having marginal, pin-receiving slots, one of said ears being provided with a hollow-center trunnion bridging the space between the ears. On this trunnion is rotatably mounted a guard member which is adapted to co-act with the slots in the ears to admit a pin tongue and lock the same in the keeper.

A. further object of the invention is the provision of means for locking the guard member in closed position.

The nature and advantages of the invention will be better understood when the following detail description is taken. in connection with the accompanying drawings, the invention residing in the combination and arrangement of parts as claimed.

In the drawings forming part of this specification, like numerals of reference in dieate similar parts in the several views and wherein:-

Figure 1 is a side elevation of my improved safety catch retaining the point of an ordinary pinstem.

Fig, Q. shows the keeper as struck from sheet stock before being bent up into operative position.

Fig. 3 is a sectional edge view showing the ears of the keeper as slightly spread apart and the guard member as mounted upon the trunnion which is formed integral with the keeper.

Fig. l is a central sectional edge view showing the guard member as mounted upon the central trunnion which bridges `the space between the side ears-of the keeper.

Fig. 5 is a section on line 5--5 of Fig. 7, showing the two laterally-extending, guard supporting cross-bars.

Fig. 6 is a perspective view of the guard member.

Fig. 7 is a central sectional side elevation on line 7-7 of Fig. 5, showing the guard Speccaton of Letters Patent.Y Patented hIlll?, 29, 1921.

Application filed April 20, 1920.

Serial No. 375,361.

member mounted on the trunnion and closin g the marginal slot in the keeper.

Fig. shows the guard member as swung .Tuto position to have its marginal slot register with those of the keeper.

'Fie'. D a modification showing the Inarslots in the keeper as being at the edge thereof opposite the base portion 0 le corresponding slot in the guard as being in position to close the keeper slots when moved to locked position.

With reference to the drawings, 10 designates the usual pi' "stem as being mounted in a joint niunnber 11 att-ached t0 the body portion 12 of a piu. lx1/[y improved safety catch member 13 may be connected to the opposite end of the pin body in any suitable way, to receive the pointed'end of the pinstem. l

This catch member comprises a keeper member which is preferably blanked out of sheet stock into the shape best illustrated in Fig. 2, having a pair of sideears 111 and 15 connected together by a Vbase portion 16. Iia ch of these ears provided with a marginal slot 1"? which entends inwardly from the edge to the center portion. thereof and the car lll is shown as being provided with a trunnlon 18 which entends laterally from the inner face thereof. The inner surface of the opposite ear 15 is providedwith a counterbore or recess 19 into which the end of the trunnion 1S sets.

After having been struck into the shape illustrated in Fig. 2 the ears 14 and 15 are bent up into the shape illustrated in Fig. 3 providing a base portion 1G between them.

In order to close the marginal slots 17 in these ears so to securely lock the pointed end of the pin-stem therein, I have provided a guard member 20 which, as best illustrated in G. is also provided with a marginal slot 21 which maybe caused to register with the slots 1T in the keeper, as illustrated in Fig. S. for the purpose of admitting the point of the pin-stem therein. The center portion f2.9 of this guard member is punched out in circular form and is mounted upon the trunnion 18.

.After having been positioned on the trunmon, as illustrated in Fig. 3, the side ears are then closed into the position illustrated in. Fig. 4L, with the guard member between them.

An operating handle 22 is formed on this sol guard member, which may be engaged by i the thumb and' iinger of the user, to rotate this guard upon its trunnion, and 1n order to providea detent or locking means for retaining this guard when its slot has been moved to close those in the keeper, I have provideda cross-bar 23 which is preferably formed integral With the margin of the ear let and is bent into position to bridge the space between the tivo ears, and this operating handle 22 is preferably formed in somewhat of a Vhook vshape having a recess 24 with a 'slight protuberance 25 near its end `adapted to snap over'the arm 23 when the Vber5 which bar serves as a stop to limit the movement of the guard in the opposite direction and cause its slot to register' with those in the ears. A slight protuberance 30 is also formed on the edge of the lguard to ride under this bar 26 and so serve as a detent to hold the guard in open position.

These arms in addition to the functions describedralso serve to support the guard member against spreading or opening` up when the pin tongue While held therein.I is subjected to heavy opening strains.

In some cases instead of forming the marginal slots on the under edge ofthe keeper ears,- I may form them on the upper edge or opposite the base of these cars as indicated at 27 in Fig. 9, in which case the slot 28 in the guard member will be in position to closethe ears 27 when moved to locked position.

An essential advantage in forming the trunnion integral with one of the side ears and having its free end engaged by a socket in the opposite ear is that by this construction the spreading tendency of these arms is prevented.

- The foregoing description is directed solely toward the construction illustrated, but I desire it to be understood that I reserve the privilege of resorting tol all the mechanical changes to which the device is susceptible, the invention being defined and space. cach ear being provided` with a inarginal slot leading to said hollenY center. and

a guard member rotatably mounted on said trunnion having a slot coperating with said ear slots to open or close them.

2. ji.. safety catch comprising` a keeper having a pair of spaced-apart side ears having their edges connected together at one pont to vform a base liv which they are iixed to a supportI one of said ears having a eentral recess and the other havingl an integral hollenY center trunnion bridging said spare and entering said recess, each ear being pr.)- vided with a marginal slot communicating ivith said hollow center and a `guard member rot:xtablj.v mounted on said trunnien and provided with a marginal slot adapted io react with those in said ears to admit a pin tongue and then lock it therein.

3. safety catch comprising a keeper having a pair of spaced-apart side ears. a trunnion on one of said ears bridging said space, one of said ears having a peripheral bar bridging the space between said ears. each ear being provided with a marginal slot and a hook-shaped operating member in said guard adapted to engage said har to lock said guard in closed position.

il safety catch comprising a keeper having a pair of spaced-apart side ears, one` of sa id ears having a hollow center trnnnion bridging said space. each ear being provided with a marginal slot leading to said holloncenter, and a `guard member rotatabl)- mounted on said trunnion havingl a slot cooperating ivith said ear slots to open or close them, and means lockingsaid guard in either open or closed position.

In testimony whereof I aix my signature.

JOIIN FIEI/DI NG.

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