US1922455A

US1922455A - Doorlatch

Info

Publication number: US1922455A
Application number: US345769A
Authority: US
Inventors: Charles P Quigley
Original assignee: American Hardware Corp
Current assignee: Emhart Industries Inc
Priority date: 1929-03-09
Filing date: 1929-03-09
Publication date: 1933-08-15
Anticipated expiration: 1950-08-15

Description

Aug. 15, 1933. c. P. QUIGLEY 1,922,455

DOORLATCH Filed March 9, 1929 .5. INVENTOR i CHARLES P. QUIGLEIY Patented Aug. 15, 1933 UNITED STATES PATENT OFFICE DOOEtLATCI-I Application March 9, 192-9.

2 Claims.

My invention relates to thumb operated door latches of the type in which a strike, mounted on one of door structures, is provided with a catch that is adapted to be engaged by a pivoted latch bar mounted on the other door structure, the latch bar being adapted to be lifted out latching engagement with the catch by m of a thumb operated lever that extends throu ii an opening in the door.

The principal object of my invention is provide a thumb operated latch of this charad ter which is particularly adapted for use on double doors, such as garage doors.

Another object of the invention is to provide a strike for thumb latches that is adapted to be mounted in a transverse groove cut in the edge of the door structure.

Another object of the invention is to provide a strike for thumb latches oi the c:

tion and may be easily applied to a door structure.

A still further object of the invention is provide a strike-for thumb latches of the on ter indicated which may be easily adjus different thicknesses of doors.

These and other. objects of my invention and features whereby they may, be attained will clearly understood from the following description and accompanying drawing, in which:

Figure 1 is a front view of a portion of hinged double doors, such as garage doors, with a thumb latch applied the1'eto':having a strike embodying my invention; V

Fig. 2 is a sectional View taken on the line 2 2 of Fig. 1;

Fig. 3 is a sectional view, partly in elevation, taken on the line 3-3 of Fig. 1' and Fig. 4 is a detail view in perspective of the strike.

My improved device is shown applied to double 14 on the inner side of the door with its free end portion extending through a guiding member 16 secured to the door. These of the thumb latch may be of the usual construction.

In accordance with my invention, the strike for the latch is made of sheet metal and has a rear inner Wall 18, longitudinal side walls 20 Serial No. 345,769

and end wall 22. The lower side wall 20 is pro vided with an upwardly turned member forming a catch 24 having a latching shoulder 26 spaced a distance from the end wall 22 so as to permit the reception of the end of the latch bar between them, and a downwardly and outwardly inclined 27. To apply the strike to a door structure such as the door 2, a transverse groove is first cut in the edge of the door. The strike is positioned in this groove with its end wall 22 spaced a distance from the inner side of the door so as to have the shoulder 26 in proper relation with the latch. bar 12 when the doors are closed. The strike is secured to the door 2 by means of screws 28.

With this construction, upon closing the door i the pivoted latch bar 12 rides up on the inclined edge 27 of th catch 24, and drops down between the shoulder 26 and the end wall 22 'so as to latch the door closed. To unlatch the door the outer end of the thumb lever is pressed downwardly so as to cause its inner end to lift the latch bar 12 above the catch whereupon the outer door may he swung open.

In order to accommodate the strike for differ ent thicknesses of doors, it is provided with a eiescoping end member 30 having a wall in slid ng engagement with the rear side of the rear wall of the body of the strike, and having side walls 32 adjacent the outer sides of the side walls 20. This end piece 30 is provided with an elongated slot 33 through which one of the screws 28 may extend, so as to secure the two members of the strike in the groove. By adjusting the piece 30, the strike may be made of proper width for the thickness of the door.

It will be apparent that my improved strike is particularly adapted for use on the double doors of garages, and that to apply the strike to such doors it is merely necessary to secure it in a transverse groove cut in the edge of the inner door. It will also be apparent, however, that the latch and strike may be used on single doors, the strike then being-set in a transverse groove in the door casing.

As will be evident to those skilled in the art, my invention permits various modifications without departing from the spirit thereof or the scope of the appended claims.

What I claim is:

l. A strike for thruinb latches of the type described, adapted to be secured in a transverse groove in a door structure with one end thereof projecting beyond one side of the structure having a rear wall, horizontal side walls, and an end for door structures of different thicknesses, one of said members having a rear wall, horizontal side walls, and an end Wall spaced a distance outwardly from one side of said door structure, one of said side walls having an upwardly turned member forming a catch having its latching shoulder spaced inwardly from said end wall and arranged adjacent to and facing outwardly from said side of the door structure.

CHARLES P. QUIGLEY.