US1762883A - Door catch - Google Patents

Description

June 10, 1930.

W. N ORM AN DOOR CATCH Filed Dec. 3, 1928 INVENTOR. Will-Lam Nut-man "/4 r" l i 1 ATTORNEYS.

'20 substantially on the line111 of F igure'2.

3o inFigure 1 of the drawing.

' Patented June 10, 1930 UNITED T TES- WILLIAM NORMAN, F Gn nnIs ANn, NEB ASKA 1 noon- CATCH Application filed December 3 embodying improvements over the door catch 'set forth in my Patent #1,6,86,4l7 granted October 2, 1928, in the means for latching the closure and tripping the latch. it Other objects and advantages of this invention will be apparent during the course ofthe following detailed. description.

In the accompanying drawing, forming a part of this specification, and wherein simi lar reference characters designate corresponding parts throughout the several views. Figure Tie a sectional view taken through a portion of the door or closure structure, and showing the improved latch as it is connected to a jamb or casing; theview' being taken" Figure 2'is a fragmentary front view of the front portion of a door or closure structure, showing the improved type; of keeper and trip lever which may be used in connection with the latch. j Figure 3 is a view of the pivoted bolt in the casing, with one wall of the casing removed. Figures 4, 5" .and 6 are sectional views taken substantially on their respective lines Figure 7 is aperspective view of the trip handle and-the frame for supporting the same and the bolt retainer on adoor or closure.

In the drawing, wherein for the purpose of Y 5 illustration is shown onlyf'a preferred elnbodi ment of the invention, the letter A may generally designate the improved door latch, which embodies a casingB having a movable bolt C therein; the casing 13 being mounted upon a jamb, post, door, or like structure D.

A frame E adapted to receive a keeper or re'-, tainer is mounted upon a door-0r other build-, ing structure F, and has a trip'handle G associated therewith for tripping the latch bolt,

and opening the door or closure F. p r The casing B preferably comprises'outer and inner walls '10 and 11, the inner wall 11 at'its upper .and lower edges being flanged at 12 and 13 respectively, in'right angled rela 10 tion, to close the space 15 between the said that'the walls 10 and are provided with; V horizontally elongatedopenings 29 therein, in

.which the ends of the bolt 24 are mounted,

order to adj ust it to the position ofthe keeper,

, .1928. Serial-No. 323,4 2. v I

walls. *The walls 10 and 11 are provided with openings for receiving screwsl? or the'like to support thecasing upon'the jamb, post, or other building structure 1)." The walls 10 and 11 are outwardly flanged atthefront-and' rear thereof, at20, so that the" entire'front and rear of the space between the walls lO and 11' r is open, and the front and rear ends .of the" bolt C project therethroughi'j 'The'bolt Cfis provided with an opening20 intermediate the ends thereof, which receives therein a spacing sleeve 21, on which the bolt'is pivoted. The spacing sleeve 21, .as 'shown in Figure 6, is supported in the space between the wallslO and 11 by a detachable bolt 24. This spacing 5 sleeve serves two functions, namely, to space thewalls l0 and 'and provide a pivot. mountingfo-r the bolt*C. [It is to be'noted for adjustment, in order that thehead ofthe bolt may be extended to various degrees'with respect to the'forward end of the case B,,in

51-. which may vary under some ci'rcumstances, as.

* can readily be understoodby those skilled-in thisart; I V e The bolt C is somewhat of the form set forth in my patent above referred to; It is elon ated and forwardly of the pivot 'it is weig tedso thatthe same willby gravity swing. downward, so th'at'the front end engages againsta special bolt 35* of the case. The bolt is provid'ed'with apoint .or' apex g 31 at the front'thereof, for ned'by the intersection of the top edge 32 ofv the bolt, and the: V

rearwardly and downwardly sloping front edge 38. This edge 331s so positioned that it will slide against the retaining bolt-or keeper to .be subsequently I described, in order to lift the latch bolt to permit 'the keeper to slip intothe recess 35 provided upwardly in'the bolt transverse to the edge 33 and in-f tersecting the same. A suitable opening 36' may be provided at the apex endSl of the bolt, if desired@ Referring to the keeper, its frame, and" the releasing latch, the frame is preferably I r of metal, and is mounted upon a door which the bolt is to releasably latch. The doorF is preferably morticed at 40, inwardly from the edge which faces the bolt support D.

The keeper frame E is preferably of forged, cast, or stamped metal, preferably including a fiat plate body 41, of substan tially triangular form, which at the wide end thereof is flanged, as shown at 42 in Figure .7 of the drawing. From the flange 42 the body 41 converges to a point, provided with an opening 43 for receiving a screw or bolt 44 by means of which the plate body 41 may be attached to the door or closure F, as shown in the drawing. The flange 42 is adapted to fit across the free edge of the door or closure F, and it is provided with openings 46 for receiving bolts or screws 47 by means of which the said flange 42 may be secured to the door closure. This flange 42 of course bridges the mortise or recess 40. The body 41 adjacent the flange 42 is provided with a substantially rectangular opening 49 formed by bending, stamping, or otherwise providing a flange 50 at an edge of the opening 49 in spaced parallel relation with the flange 42; the flange 50 being adapted to rest against the bottom surface of the mortice or recess 40. The flanges 42 and 50 are provided with openings 53, in aligning relation, adapted to receive the keeper pin 60, which is .preferably inthe as. F, as shown in Figure 2 of the drawing.

form of' a screw, having a head countersunk in the opening 53 and a screw threadedshank adapted to bite into the material of the door This keeper pin or retainer has a smooth shank portion extending transversely across the space between the flanges 42 and 50, as shown inoFigure 2 of the drawing.

The keeper frame .E is of course so positioned on the closure F thatwhen the latter is closedthe pin 60 will engage against the edge 33 of the bolt C, lifting the bolt, on its pivot, until the keeper pin slips into the bolt recess 35, when the bolt drops downwardly and latches the door, as shown in Figure 1 of the drawing. In this position the end of the bolt projects beyond the outer surface of the frame The improved latch is provided with a novel trip lever G, best shown in Figure 7 of the drawing, which includes a straight bar portion 71 having a substantially U- shaped handle 72 riveted or secured at its ends to the ends of the bar to provide a hand inserting opening between the bar and the U-shaped handle. At one end the U-shaped handle is secured to the bar 71 by means of a pin .74 which also serves as a pivot pin for the. swinging of the lever G. This pivot pin is mounted adjacent the apex of the keeper frame E, and a rivet 76 secures the other end of the U-shaped handle 72 to the bar 71 to'complete the handle. The free end of the lever Gr swings across the opening 50,

and the purpose, of course, is to lift the end of the bolt off of the keeper, by swinging the lever G from the position shown in Figure 7, upwardly, and at the same time the operator pulling on the handle to open the door.

To keep the handle Gr in proper position upon the frame E, it is preferred to provide a retaining strap 80, which is vertically secured on the outer surface of the plate 41; the same being riveted at its upper and lower ends at 81 and 82 respectively, to the body 41 of the frame E adjacent and parallel to the opening 49, between the same and the pivot of the handle. The strap 80 provides a loop 83' between the same and the body 41 thru which the bar 71 of the handle Gr slidably extends; the movements of the handle G being limited by the engagement of the bar 71 at the ends of the strap 80, in a manner which is perfectly obvious. The strap 80, of course, threads thru the opening in the handle G between the handle portion 72 and the bar 71.

Inorder to prevent releasing of the bolt from its latching position on the keeper pin 60, merely by lifting of the trip handle G, I prefer to provide a key or pin 90, connected by a flexible strap or cable 91, at 92, upon the amb or post 1), adjacent the rear shank end 30 of the bolt 0. This is adapted to be slipped throughaligning openings 94 in the case walls 10 and 11, which are disposed im mediately beneath the shank 30 of the bolt C when the latter is in a latching position, as shown in Figure 1 of the drawing, and which of course prevents the lifting of the retaining end of the bolt by raising the handle G. This to the post or jamb against liability of move- 7 ment, as shown in the drawing.

Various changes in the shape, size, and arrangement of parts of the improved latch may be made to the form of invention herein shown and described, without departing from the spirit of the invention or the scope of the claims.

I claimi I 1. In a latch the combination of a casing providing a pair of walls, one of the walls having upper and lower right angled flanges, transverse detachable means connecting the walls together with theiflanges in engagement between the walls to hold them spaced, the front and rear of the case between the walls being open, a pivot pin transversely carried by the walls, a latch bolt pivoted on said pin and extending through the rear and front openings between the walls, the bolt beyond the front of the case having a keeper receiving slot therein, the pivot pin being adjustable longitudinally of the case. between the front and rear open ends. i 2. In a latch the combination of a casing providing a pair of walls, one of the walls having upper and lower right angled flanges, transverse detachable means connecting the walls together with the flanges in engagement between the walls to hold them spaced, the front and rear of the case'between the walls being open, a pivot pin transversely carried by the walls, a latch bolt pivoted on said pin and extending through the rear and front openings between the walls, the bolt beyond the front of the case having a keeper receiving slot'therein, the pivot pin being adjustable longitudinally of the case between the front and rear open ends, and releasable key means to hold the bolt in a latched relation. i 3. As an article of manufacture a keeper structure for latches comprising a body plate having a right angled flange at an end thereof, the plate adjacent the flange having an opening therethrough and at the opposite side of the opening from the flange being v provided with another flange spaced from and parallel with the first mentioned flange, and a keeper pin transversely carried by said flanges. I

L'As an article of manufacture a keeper structure for latches comprising a body plate 7 having a right angled flangeat an end thereof, the plate adjacent the flange having an 1 opening therethrough and at the opposite side of the opening from the flange being provided with another flange spaced from and parallel with the first mentioned flange, 40 a keeper pin transversely carried by said flanges, a bolt tripping lever pivoted on the plate at a location remote from the flanges and operating across said opening at the op- I posite side of the plate from said flanges. 5. As an article of manufacture a keeper structure for latches comprising a body plate having a right angled flange at'an end thereof, the plate adjacent the flange having'an opening therethrough and at the opposite 5 side of the opening from theflange being provided with another flange spaced from] and parallel with the first mentioned flange, a keeper pin transversely carried by said flanges, a bolt tripping lever pivoted on the plate ata location remote from the flanges and operating across said opening at the op-' posite side of the plate from said flanges, and means carried by the plate for limiting the amplitude of movement of the lever. WILLIAM NORMAN.

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