US1473378A - Door latch - Google Patents

Description

Nov. 6 1923. ,473,378

R. G. MOORE DOOR LATCH Filed March 20. 1923 `UW Il? L h l 3 mu m i WW" i a katent Nov. 6, i923.

' tra? RAYMOND GUY MOORE, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR TO THE BASSICK COMPANY, F BRIDGEPORT,. CONNECTICUT, A CORPORATION 0F CONNECTICUT.

DOOR LATCH.

Application med March 2o, 1923. seriai no. 626,444.

Be it known that I, RAYMOND G. Moons, a citizen of the United States, and resident of Bridgeport, county of Fairfield, and State of Connecticut, have invented certain new and useful Improvements in Door Latches, of which the following is a speciication'. y

The invention relates to door latches, and

to particularly to improved means for securing in position a spring used in a spring-pressed latch construction. In springpressed latches as previously made it has been customary to anchor or secure such springs to l5 the plate of the casing, particularly where spiral springs are used, by extending the secured end of the spring through a slit in a stud riveted to the plate. In such a case the stud has been slit down from its upper 2o end, the spring inserted, andthe ortions of "the stud onv opposite sides of the s it pinched together above the spring to hold the latter.

jThe slit cannot extend down flush with the surface of the plate, ordinarily, as it will be too much weakened thereby. If, accordingly, the inner end of the slit terminates a distance from the surface of the plate, the

inner end Vof the spring has to be raised from the surface of the plate, to extend through the slit, and that tends to tilt the spring, and makes it diicult to make the 'spring lie flat on the plate. To avoid this difficulty special arrangements must be made, such as forming a recess in the plate, in which thew stud is mounted, occasioning further labor and expense.

The present invention overcomes the diculties referred to and provides an effective and simple means for anchoring the springs of spring pressed latch constructions,which will do away with several manufacturing operations, and effect a. considerable saving in labor and cost of installation. According to the invention I provide a clip or strap, preferably bent into inverted Ushape, slip this over the 'end or portion of the spring to be secured, extend the ends of the clip through an opening or openings provided for that purpose in the plate, and then bend over the ends of the clip on the opposite side'of the plate, or otherwise head or enlarge them, to cause them to engage the surface of the plate and thus hold the` clip and spring portion embraced thereby,

in position.

to form, and

The object of the invention, generally speaking, is the provision of improved de- ,.vices of the character referred to above. The invention consists in the various conibinations of parts and details of construction hereinafter more fully set forth in accordance with the form of the invention which now seems preferable and as is more particularly set forth in the accompanying claims. i

In order that the invention may be more clearly understood attention is hereby directedA to the accompanying drawings forming part of this application and illustrating one embodiment of the invention. In the drawings l Figure 1 represents a front elevation shown partl in section of a door latch construction embodying the invention;

Figure 2 is a' section on an enlarged scale taken on line 2-2 of Figure l;

Figure 3 is a plan view on an enlarged scale of the clip used-for securing the spring in place before the saine has beenpressed Figure 4 is a side elevation of the same after it has been pressed to form. y

Referring to the drawings, a bolt l -is indicated slidabl mounted on plate 2 which may be secure to a door in the usual manner. The bolt is guided and held in place by` any suitable means, such as the cover plate indicated at 3. Plate l is provided with a flange 4c at its forward edge through an opening in which the nose of the bolt is o0 slidable into the projected position shown in Fi re l.

The bolt may be retracted in an usual way as by means of the hand lever indicated at 5, or vby a handle operated roll back. of;- A handle operated roll back, 6, is indicated I in the drawings, oscillation of whichv is adapted to swing lever l5 rearwardlyv ,and cause the latter to retract the bolt, lever 5 bearing against a transverse surface 7 on the bolt. A flat spring 8 is indicated. secured to plate 2 and bearing against hand lever 5 to press the same forwardly. None of the features referred to form part of the'present invention.

The bolt 1 is shown as pressed forwardly towards projected position by a spiral, spring 9, the outer end portion of which is shown as bearing against a transversersurface such as the rear surface ,off the holt.'v

Cil

This spring is anchored or secured in position upon plate 2 by means of the metal clip l0. v

This clip may be formed of a metal blank, such as is indicated in Figure 3 at 10a which is bent into the form of an inverted U-as shown at lOl in Figure 4. An opening or a pair of openings are provided through plate 2 through which the legs of the clip may extend. ln Figure 2 of the drawings a single opening 11 is indicated.

When the device is to be assembled the spring is ositioned on the face of plate 2 and the clip l0 is slipped over the inner end portion of the spring which is bent torextend t in a substantially straight line for a short distance approximately across the center of the spiral. rl`he clip. extending over and about the inner end portion of the spring, the end port-ions of the legs of the clip will be extended through the opening A1l and the end portions of the legs of the clip then headed or enlarged, or bent in suitable fashion to prevent the same from slipping back through opening l1. As is indicated in the drawings, the end portions l2 of the clip may simply be bent, at right angles to the main portion of the clip into engagement with the surface of plate 2 opposite to that on which spring 9 rests. y,

With such a construction the spring may be mounted in position in a very short time and in a very simple manner and Will lie flat on the plate without any tendency to tilt.g lt is obvious that the spring will be held safely and securely by the device described without any tendency for the same to work or pull out of the clip.

It should be understood that the invention is not limited strictly to the details of construction described but is as broad as is indicated by the accompanying claims.

What l claim is: l. In a door latch, the combination of a plate, having an opening therethrough, a

nar/aste bolt slidably mounted on said plate, means for guiding the bolt, a spiral spring having its outer end' engaging against the bolt to press it toward projected position, and an inverted U-shaped clip extending over the inner end portion of said spring and through said opening and having its ends bent over against the opposite side-of said plate to secure said spring in position.

2. ln a door latch, the combination of a plate, having an opening therethrough, a latch-effecting member movably mounted on said plate, a spring on said plate pressing said member towards operated position, an a bent clip extending over and about said `spring and having its ends extend through said opening, said ends being provided with laterally extending portions bearing against the opposite side of said plate to secure said spring in position.

3. ln a door latch, the combination of a plate, having an opening therethrough, a latch-effecting member movably mounted on said plate, a spiral spring bearing evenly against said plate with its outer end portion pressing said member towards operated position, and an invert/ed U-shaped clip extending over an inner portion of said spring and through said opening, the ends of said clip being provided with laterally extending portions bearing against the opposite side of said plate to secure said spring in position.

4. In a door latch, the combination of a plate having an opening therethrough, a member movably mounted on said plate, a spring on said plate pressing against said member and a bent clip extending over and above said spring and having its ends exf tend through said opening, said ends being provided With laterally extending portions bearing against the opposite side of said plate to secure said spring in position.

ln testimony whereof l have signed my name to this specication.

RAYMOND GUY MOORE.

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