US2060333A

US2060333A - Safety catch

Info

Publication number: US2060333A
Application number: US21994A
Authority: US
Inventors: Morehouse Eugene
Original assignee: BA Ballou and Co Inc
Current assignee: BA Ballou and Co Inc
Priority date: 1935-05-17
Filing date: 1935-05-17
Publication date: 1936-11-10
Anticipated expiration: 1953-11-10

Description

Nov. 10, 1936. MOREHQUSE 2,060,333

SAFETY CATCH Filed May 17, 1935 INVENTOR. M/ZQ [Va/6401a? A TTORNEYS.

Patented Nov. 10, 1936 UNITED STATES PATENT OFFICE SAFETY CATCH Rhode Island Application May 17,

5 Claims.

This invention relates to a safety catch for retaining the end of a pinstem by engagement therewith adjacent the pointed end of the shank; and has for one of its objects the provision of a construction which may be provided with an enlarged attaching base so that the same may be positioned by soft solder.

Another object of the invention is the provision of a safety catch which may be assembled prior to its leaving the factory and by reason of its construction with an enlarged base may be soft soldered into position so as not to draw the temper from the operating parts as would occur were a small base used and the device hard soldered in position.

Another object of the invention is the provision of a construction which will prevent the solder used in attaching it in position from running up into the catch to obstruct the working of the keeper after the catch has been soldered into position.

Another object of the invention is the arrangement of the base of the safety catch such that it will prevent the shank from being accidentally bent with reference to the base.

With these and other objects in view, the invention consists of certain novel features of construction, as will be more fully described, and particularly pointed out in the appended claims.

In the accompanying drawing:

Fig. 1 is a side elevation of the device with the keeper in closed position.

Fig. 2 is a similar view with the keeper in open position.

Fig. 3 is an elevation looking at the front of the device with the keeper removed.

Fig. 4 is an elevation looking at the rear of the device with the keeper removed.

Fig. 5 is a sectional view on line 5-5 of Fig. 4.

Fig. 6 is a perspective view of the blank used in forming the catch.

Fig. 7 is a plan view after the blank has been partially bent.

Fig. 8 is a section on line 88 of Fig. '7.

Fig. 9 is an elevation of a modified catch after being bent into finished position.

Fig. 10 is a side elevation of a different modified construction showing a smaller base.

Fig. 11 is a bottom view showing a seamless base which provides an enlarged surface for attachment to a bar pin or the like.

In the use of safety catches, it is usual that the shank and its flanges be soldered directly to the back of an ornament such as a bar pin or the like with hard solder, it being necessary to use hard 1935, Serial No. 21,994

solder in order to provide the required strength to attach a small surface to the ornament; and when hard solder is used it is necessary to assemble the keeper and the catch after this soldering has taken place so as not to withdraw the temper from the keeper by annealing. Some ornaments such as those from cast alloys, will melt at a temperature necessary for a hard soldering operation and this method of attachment cannot be used. 10

It is frequently desirable that the catch and its keeper be assembled complete and attached in this assembled condition to the ornament or to an ornament having a low melting alloy; and in order to accomplish these results I have provided 15 a keeper with an extended portion in its blanked out form and bent the extended portion so as to provide a base across the bottom of the catch, which may afford a large attaching surface enabling soft soldering and so that the catch or device as a whole can be assembled complete at the time it leaves the factory; and I so arrange this base that it locks with the catch to prevent bending should the catch engage or be bumped by some object when in use. Further, it is known that solder sometimes runs into the joint and by reason of my construction of large base, the running of the solder upwardly into the joint is prevented; and the following is a more detailed description of this improved construction by which these advantageous results may be accomplished:

With reference to the drawing, I have illustrated in Figure 6 the shape of the blank of the catch as cut out from sheet stock. This blank is then bent so as to provide a back shank I I with a forwardly extending hook I2 beneath which the pinstem will engage and be held. There also extends forwardly from the shank I I side flanges I3 which approximate a triangular shape and appear as laterally extending wings I4 in the 40 blank. A notch I 5 is cut out from the triangular flanges or wings and the lower portion of the blank I6 which forms the base is bent rearwardly slightly at its neck portion I I and then bent as at I8 to extend forwardly in contact with the lower 5 edges I9 of the flanges, this base being of a width greater than the distance between the flanges, and also of a longitudinal length greater than the .length of the flanges. A tongue 20 integral with the base is bent upwardly providing a lip 2I 5 extending across the end of the flanges while its tip 22 is bent into the notch I5 so as to prevent the shank I I from being bent back about the portion I8 to distort the shank or lift the flanges away from the base I6 thus locking the assembly 55 in desired position and strengthening the entire structure.

Recesses 25 provide bearings on one or both flanges for the reception of a trunnion or trunnions 26 on one or both sides of the keeper 2'1 which is thus pivotally mounted in the catch. This keeper is of a shape having a handle portion 28 which extends rearwardly thru a slot in the shank to be manipulated for causing its nose portion 30 to close the entrance to the hook [2 or open the entrance thereto.

By reason of the shaping of the construction, the base may be of any extent laterally by merely enlarging the portion 3| thereof or by reason of the reverse bend at the fold I8 may be extended rearwardly any desired extent, see for instance Figure 9 where the fold 32 is extended to a greater extent rearwardly than shown in Figure 5, or there may be no reverse extension as shown in Figure 10, as at 33, where the base is folded at substantially a right angle rather than being extended rearwardly as shown in the previous figures.

By the provision of a large base, I accomplish many advantages. First, there is an increased surface provided necessary for the holding power for the catch to be soft soldered in position or for mounting on a low melting alloy or other ornaments and incidentally there is a base sufficiently large so that the device will stand up by itself and not need to be held by a pair of tweezers. Further, this base by completely covering all of the joints prevents the solder from running up into the catch to clog or prevent the keeper from the freedom of movement which it is desired the same will have. Further, I am enabled to assemble the movable keeper with the catch by soldering in position, which is of advantage in that the assembly need not take place after soldering. I also provide a stronger mounting of the shank by reason of the locking of the finding to the base and the secure holding of the base in position.

The foregoing description is directed solely towards the construction illustrated, but I desire it to be understood that I reserve the privilege of resorting to all the mechanical changes to which the device is susceptible, the invention being defined and limited only by the terms of the appended claims.

I claim:

1. A holding device for a pinstem, comprising a catch having a shank with an overhanging hook extending forwardly therefrom, side flanges on said shank extending forwardly therefrom, a base having a fold connecting it to said shank, and means at the forward edge of the base extending across and over a portion of said flanges to lock them against the base.

2. A holding device for a pinstem, comprising a catch and a keeper movably mounted therein, said catch comprising a shank with an overhanging hook extending forwardly therefrom, side flanges on said shank extending forwardly therefrom, a base having a fold connecting it to said shank, a lip at the forward edge of the base extending across and over a portion of said flanges to lock them against the base.

3. A holding device for a pinstem, comprising a catch having a shank with an overhanging hook extending forwardly therefrom, side flanges on said shank extending forwardly therefrom, a base having a fold connecting it to said shank, said side flanges having notches in their forward edges, and a lip at the forward edge of said base turned into said notches to prevent opening at said fold.

4. A holding device for a pinstem, comprising a catch formed of one piece of stock and having a shank with a forwardly extending overhanging hook, flanges folded forwardly from the side of said shank, a base folded from the lower end of said shank forwardly beneath and contiguous with the lower edges of said flanges, and means at the forward edge of the base turned inwardly over a portion of said flanges to lock them against the base.

5. A holding device for a pinstem, comprising a catch formed of one piece of stock and having a shank with a forwardly extending overhanging hook, flanges folded forwardly from the-side of said shank, a base folded from the lower end of said shank forwardly beneath and contiguous with the lower edges of said flanges, and a lip extending upwardly across the end of said flanges and turned inwardly over a portion thereof to lock the flanges and base in contiguous relation against a reverse bending at said fold.

EUGENE MOREHOUSE.