US2239956A - Door catch - Google Patents

Description

Aprii 29, 1941. B GALUNGER 2,239,956

DOOR CATCH Filed Nov. 8, 1940 INVENTOR.

BY I Patented Apr. 29, 1941 UNITED STATES PATENT OFFICE DOOR CATCH Hiram B. Gallinger, Superior, Wis. Application November 8, 1940, Serial No. 364,855

5 Claims.

This invention relates to door catches and has special reference to that type usually employed asa closure means for screen or storm doors, or the like, and which automatically function to hold the door closed after being initially operated by same.

Certain of the objects of the instant invention are simplicity of construction, convenience of assembly-of the various parts of the door catch, economy of manufacture, and another object is that of providing a novel combined anchor and bearing saddle for the "pivotal union of the principal parts of the catch.

Still other objects and advantages of the invention will appear in the following description thereof.

Referring now to the accompanying drawing, forming-part of this application, and wherein like reference characters indicate like parts:

Figure 1 is a side elevation of one of the improved catches, illustrated in its partly closed position.

Figure 2 is a front elevation of Figure 1.

Figure 3 is a broken perspective view of the inner end of the arm.

Figure 4 is a top plan view of the catch.

Figure 5 is an enlarged end elevation of the combined anchor and bearing saddle.

Figure 6 is a front elevation of Figure 5.

The general arrangement of the principal bracket and arcuately shaped arm of the device will be more or less general.

Referring now to the drawing in detail, the stationary bracket portion of the catch is indicated at I it being provided with a somewhat cloverleaf shaped flanged base 2, through which are suitable holes for the accommodation of three screws in attaching same to the door trim of a door to be controlled by the device. 3 represents the arcuately shaped arm or movable member of the catch, which is preferably channel shaped in cross section, having spaced parallel sides, and provided with one or more openings through the back of same as indicated at 4 and 5. This movable holding arm carries at each end and between its sides a rubber roller indicated at 6, and the arm is held biased in either of its extreme positions by the contractile helical spring I; the door functioning to initially operate the arm in either direction in the usual manner.

In this instance the opening 5 in the back of the arm 3 is made by striking a somewhat semicircularly shaped member 8 inwardly therefrom and providing the same with a suitable hole 9 for engagement by one hooked end of the spring 1, as clearly illustrated, and the other opening 4 formed in the back of the arm 3 tends to lighten the construction of same and permits of ready visibility of the spring 1 in the event of damage or the like to the spring or other internal portions of the catch. It will be noted that further lightening of the structure is accomplished by the V-shaped openings l0 above each roller and at either end of the arm, they being identical The improved pivot-a1 support for the bracket and arm, in this instance, is accomplished by the provision of a novel bearing saddle, shown more clearly in Figures 5 and 6.

The central body portion of the saddle-like member is illustrated at H and is somewhat of crescent shape and provided centrally in one edge with asuitable notch H in which the opposite end of the spring I is hooked, as clearly illustrated in Figure 5. The uppermost opposite extremities of this body portion extend laterally and are of generally semi-cylindrical shape, forming the axis of the saddle, and the outermost ends of which are stepped or notched as clearly shown in Figure 6, that portion illustrated at 13 being designed to extend within similarly shaped arcuate recesses in the upwardly extending spaced side portions M of the bracket I. These slots or recesses, being of the same shape and size of the lugs 13 when the saddle is installed therein, prevents any rotation thereof, and furthermore the end of the lugs l3 are designed to be upset or otherwise fixed in any convenient manner within the bracket l thus insuring positive positioning of the saddle therein. A further stepping or notching of the saddle is made as at Hi to provide a similar circularly shaped bearing for the arm 3. For such bearing it is to be noted that the spaced parallel side walls of the arm 3 are provided with finger-like members indicated at l6, which are formed in conjunction with a through hole or opening the exact radius of the axial arcuate projecting portions of the saddle so that when positioned about same they will find their bearing upon that portion of the saddle axis indicated at l5, thus providing an adequate, durable bearing for the arm 3.

For convenient installation of these parts, it is to be noted that a slot-like opening is made which forms a space adjacent the termini of such fingers, permitting of most convenient assembly of same.

As previously stated on hooked end of the spring 1 is engaged within the hole 9 of the member 8 of the arm, whereas the other hooked end of the spring is engaged within the notch 12 of the body portion of the saddle and thereby biases the action of the movable arm toward the limit of its movement in either direction.

Having thus described my invention, what I claim and desire to secure by Letters Patent, is:

1. In a door catch including a stationary and a movable member, each having spaced side walls, a relatively large substantially circular opening in each side of one of said members, a member extending transversely of said first mentioned members and having arcuately disposed ends extending through said circular openings and adapted to bear against the edges thereof and thereby form a pivotal joint for said members and being fixed in the sides of the other meme ber, and means whereby to bias said members toward the limit of their pivotal movement in either direction.

2. In a door catch including a pair of cooperative members each having spaced side walls, op-

positely disposed substantially circular openings in each side of one of said members, a member extending transversely of said cooperative: members and having arcuately disposed ends extending through said circular openings and adapted to bear against the edges thereof and thereby 0 form a pivotal joint for said members and being fixed in the sides of the other cooperative member, and means whereby to bias said members toward the limit of their pivotal movement in either direction.

3. In a door catch including a pair of cooperative members each having spaced'side walls, a

relatively large substantially circular opening in each side of one of said members, a member extending transversely of said cooperative members and having arcuately disposed ends extending through said circular openings and adapted to bear against the edges thereof and thereby form a pivotal joint for said members, and being fixed in the sides of the other cooperative member, and means attached at one end to said transverse member and atv the other end to one of said cooperative members to bias said members toward the limit of their pivotal movement in either direction.

4. A door catch comprising a bracket portion having spaced side walls, a transverse member fixed at its ends in said side walls, arcuate surfaces adjacent the ends of said member, a movable portion having spaced side walls, slotted openings having arcuate surfaces corresponding to the arcuate surfaces of said transverse member'in the side walls of said movable portion, said movable portion being applicable to said transverse member through said slotted openings until said arcuate surfaces register thereby forming a pivotal joint for said portions, and means for biasing said portions toward the limit of their pivotal movement in either direction.

5. In a door catch comprising a stationary bracket portion and a movable portion each having spaced side walls, a pivotal connection therefor comprising opposed circular openings in the side walls of the movable portion, and a transverse member having arcuate surfaces extending through said circular openings and being fixed at its ends in the sidewalls of said stationar member.

HIRAM B. GALLINGER.

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