US2278523A - Pin stem finding - Google Patents

Description

April 1942- E. MoREHousi; 2,278,523

PIN STEM FINDING Filed May 15, 1940 IQ INVENTOR 1 0 Mre zazzse ATTORNEYS.

Patented Apr. 7, 1942' PIN STEM FINDlNG Eugene Morehouse, Providence, R. I., assignor to B. A. Ballou & 00., Inc, a corporation of Rhode Island 7 Application May 13, 1940, Serial No. 334,683

3 Claims. (01. 24-157) This invention relates to a pin stem finding such, for instance, as a safety catch for the pointed end of the pin stem or a joint for the hinge end. of the pin stem; and has for one of its objects to provide a simple and effective base by which a blade-like part may stand upright upon the surface upon which it is to be supported.

Another object of the invention is to provide such a'base on a blade of sheet stock by bending or deflecting the sheet stock as distinguished from striking or flowing the metal.

Another object of this invention is to so formulate the sheet stock at the edge of the base that there will be a sufficient amount of attaching edge surface so that the base may be either hard soldered or soft soldered to the article to which it is to be attached.

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 a safety catch showing the catch in open position;

Fig. 2 is a view similar to Fig. 1 showing the catch in closed position;

Fig. 3 is a section on line 3-3 of Fig. 1;

Fig. 4 is an elevation of the rotor member of the catch alone;

Fig. 5 is a top plan view of the rotor member before being bent to closed position;

Fig. 6 is a side elevation of the stator member alone;

Fig. '7 is a section on line I'! of Fig. 6;

Fig. 8 is a perspective view of the stator member with its base partially formed in finished position;

Fig. 9 is a view similar to Fig. 7 but illustrating a modified form of base; and

Fig. 10 is a view similar to Fig. 7 but showing a different modified form of the base.

Safety catches have frequently been made by striking parts causing certain portions to be thickened for various purposes. The striking of the parts to cause a flow of metal of this character usually requires a hammer operation and considerable manual handling. Sheet metal structures may be formed mechanically but in such structures the thickness of the metal must usually remain uniform or substantially uniform throughout the various operations; and I have arranged for the utilization of a sheet stock blade for a pin stem finding and so formulated the edge of the finding that the same may stand upright and be as functionally effective as if the base were of the much; heavier, broader type here- .tofore' struck up with a hammer blow in dies. I have further provided this arrangement onthe edge of a single thickness blade which is to be attached to a support such, for instance, as by means of solder, butI have arranged the deflection of the stock so that. the overhanging of the rotor member which may be assembled on a blade may be supported so that the entire assembly may stand upright, which is of considerable advantage in the soldering operation; and the following is a more detailed description of the present embodiment of this invention, illustrating the preferred means by which these advan- I tageous results may be accomplished:

With reference to the drawing, the stator member, shown in perspective in Fig. 8, is designated generally l0 and is illustrated as cutout from sheet stock of a uniform thickness throughout.

The stock is bent or deflected as at H centrally of the stator outwardly on one face I2 toprovide a bulge, as illustrated in Figs. 3 to 10, while the ends I3 of this stator are bent as at H (see Fig. 7) to extend in the other direction beyond the other face I5 of the stator. This increases the supporting area of the lower edge it so that the blade originally cut from sheet stock and in substantially a single plane may be well supported in an upright position on a flat surface.

The base, shown in Fig. 9, instead of having the ends bent as at M beyond the surface I5, is arced as at 11, while in Fig. 10 the portion comparable to the bulge H, now designated l8, extends further beyond the surface i2 than heretofore, andthe ends [3 are bent as at l9 into almost a complete'circle. These three sections, Figs. '7, 9, and 10, indicate varying bases which may be formed from the structure shown in Fig. 8 or slight modifications thereof.

The blade or stator which I have illustrated may of course serve either as a pin stem joint or as a safety catch. In the particular illustration here provided a safety catch is illustrated in which the blade 20 is provided with an opening 2| and a slot 22, there being an abutment 23 extending therefrom. The rotor member is designated generally 25 and consists of a pair of ears 26 joined together as at 21 providing a handle 28 with the trunnions 29 of the ears 26 extending into the opening 20' and having a bearing with the edge thereof.

The rotor is provided'with an opening 30 andslotted from one edge to this opening 30 as at 3|, the arrangement being such that the handles 38 configuration, an increased area is provided for use of either hard or soft solder for the attachment of the finding to the article to which it is to be positioned.

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.

I claim:

1. In a pin stem finding of a single sheet of material substantially of uniform thickness comprising an upstanding blade having at least one extension at the lower edge on one side and having an outwardly extending bulge on the other side of said blade beyond the normal plane of the opposite surfaces of said blade to provide a supporting area.

2. In a pin stem finding of a single sheet of material substantially of uniform thickness comprising an upstanding blade having at least one extension at the lower edge protruding perpendicularly thereto on one side and having an outwardly extending bulge on the other side of said blade beyond the normal plane of the opposite surfaces of said blade to provide a supporting area.

3. In a pin stem finding of a single sheet of material substantially of uniform thickness comprising an upstanding blade having a pair of extensions at the lower edge protruding on one side and having an outwardly extending bulge on the other side of said blade between said extensions and beyond the normal plane of the opposite surfaces of said blade to provide a supporting area.

EUGENE MOREHOUSE

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