US1299596A - Screen-door fastening. - Google Patents

Description

B. MOORE G. O. STANSBURY.

SCREEN DOOR FASTENING. APPucATloN FILED Nov.25. me

1,299,596. Patented Apr. 8,1919.

l I l y WITNESS 1N VENTO-RS Bezn Hoare UmTnn sTaTns PATENT onnron BENTON MOORE AND GARRETT O. STANSBURY, KANSAS CITY, MISSOURI.

SCREEN-Doon FASTENING.

To all whom t may concern:

Be it known that we, BENTON MOORE and GARRETT O. STANSBURY citizens of the United States, residing at Kansas City, in the county of Jackson'and State of Missouri, have invented certain new and useful 1mprovementsin Screen-Door Fastenings, of which the following isla specification.

This invention relates to screen door fasteners and more especially to a fastener by which a door may be latched against accidental opening or locked in closed position. This invention is designed more especially as an improvement in the invention of a patent for screen door attachment issued Nov. 2, 191,5, to Benton Moore and Niles Moore and numbered 1,158,533,'the special object being to produce a simpler and cheaper construction and one which cannot readily get out of order. i

With this general object in view and others as hereinafter appear, the invention consists in certain novel and peculiar features of construction and combinations of parts as hereinafter described and claimed, and in order that it may be fully understood reference is to be had to the accompanying drawing, in whichy Figure 1, is a horizontal section showing a door jamb and a screen door equipped with a fastener embodying the invention.

Fig. 2, is a section taken on the line II-II of Fig. 1.

Fig. 3, fastener.

In the said drawing, 1 indicates a door jamb and 2 a screen door to close against the jamb and equipped with an angular latch consisting of a plate portion 3 secured by screws 4 to the door at the inner side thereof and an inwardly projecting downturned latch hook 5.

G is a rectangular casing preferably open at its outer side and adapted to be secured to the jamb at the inner side thereof in any suitable manner. The casing preferably lacks a face plate at the side in juxtaposed relation with the jamb and is provided in its inner end with an opening 7 and has a cam lug 8 at one side of the opening. The opposite end of the casing is provided with is an inner edge view of the an Opening 9, and said opening communi- Cates with an opening 10 formed in the inner wall, said openings 9 and 10 being provided respectively to accommodate the latch hook 5 and the plate portion V3 thereof, as

Specification of Letters Patent.

Patented Apr. 8, 1919.

Application led November 25, 1916. Serial No. 133,822. Y

will be readily understood by reference to Figs. 1 and 2.

Pivoted on the rivet or pin 11 secured to the inner wall of the casing is a catch 12 terminating at its outer end in an upt-urned catch hook 13 and at its inner end in an upwardly facing shoulder 14. At the side of theV pivot occupied by the shoulder 14, the casing is provided witha stop lug 15 underlying the catch and limiting pivotal movement thereof in one direction, that is said stop limits the locking movement of the catch.

A spring 16 secured to the bottom wall of the casing by a lip 17 or otherwise, exerts upward pressure on the hook end of the catch for the purpose of holding the same yieldingly in locked position, that is with its hook in such position that it must be struck by the latch hook 5 in the closing movement of the door, it being noticed that the inner edge of the catch hook 13 is beveled upward and outward slightly at 172i so that a suicient outward pull on the door shall cause the catch to yield downward and per mit the door to be opened, it being understood of course that as the door is closed, the beveled end of the latch hook will strike the upwardly and inwardly beveled edge of the catch hook for the purpose of forcing the catch to the position shown by dotted lines Fig. 2, and that as the closing movement of the door is completed, the spring 16 reacts to instantly return the catch to locked position and thus guard against accidental opening of the door.

Pivoted within the casing on a rivet 18 is a locking dog 19, the pivoted end of said dog being flattened at 20, at such point that it will contact with the upper wall of the casing for the purpose of holding the dog in substantially the position shown by full lines Fig. 2, that is in such position that it cannot accidentally engage shoulder 14 of the; catch and prevent upward movement of the shouldered end thereof. Y

The dog is provided with a handle 21 projectingV out through opening 7 and normally standing in the upper end of said opening.

When it is desired to lock the screen door so that a person at the outside thereof cannot pull it open, sufficient downward pressure is applied on the handle 21 to slightly spring the outer wall of the casing outwardly in order that the lower end of the dog may be disposed over the shoulder 1^ of the catch, and to guard against the said wall reacting and throwing the dog out of' locking position or against the same being jolted out of such position by vibration of the door, the handle when it attains its depressed or looking position snaps under the beveled lower end of the cam lug 8, it being understood that as the handle moves downward it engages` the edge of the lug with suficient friction to slightly repress the same, the casing yielding for this purpose prefer ably and then reacting to guard against accidental relevation of saidhandle after it has snapped under the lower end of said cam lug.

From the above description it will be apparent that we have produced a door fastener of extremely simple construction and which also possesses the advantages of cheapness, strength and durability.

We claim 1 l. A screen door fastener, comprising a casing having an opening in one end wall and cam lug -formed on said end wall and projecting into said opening from one side thereof, a catch Vwithin and pivoted to the casing and provided with an upturned hook at one end and an upwardly facing shoulder at the other, a spring exerting upward pressure on the hook end of the catch7 and a dog pivoted within the casing and provided with a flattened portion closely adjacent a wall of the casing to engage the same and prevent accidental dropping of the dog into the path of upward movement of the shoulder of said catch; said casing being resilient to yield Vand permit the catch to be forced to a position in the path of upward movement of said shoulder, and said. catch having a han dle projecting through Vsaid opening of the Casing in the vertical plane of said cam lug, and adapted when the dog is advanced to position to prevent upward movementof the shoulder end of said catch, to underlie said cam lug and thereby prevent reaction of the resilient casing and the consequent tripping of said dog from the path' of the shoulder of said catch. y j

2. A screen door fastener, comprising a casinghaving an opening in one end wall and a cam lug formed on said end wall and projecting into said opening from one side thereof, a catch within and pivoted to .the casing and provided with an upturned hook at one end and an upwardly facing shoulderY at the other, a spring exerting upward pres-V sure on the hook end of the catch, and a dog pivoted within the casing and provided with a handleJ projecting through the said open-Vv ing in the vertical plane of said lug, said casing being resilient'to spring back to withdraw the said lug from the path 'of move` ment of said handle when the same is pivotally operated, and to spring backinto such path when the dog is at one end or the other of its pivotal movement.

In testimony whereof we aix our signa tures in presence of two witnesses. j

BENTON MOORE. Y GARRETT O. STANSBURY. l

Witnesses: I

D. J. DowNEY, G. Y. THORPE.

Copies of this patent may be obtained for ve cents each, by addressing the. VCommss'onrer of Patents.` Washington, I). C.

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