US937094A

US937094A - Door-check.

Info

Publication number: US937094A
Authority: US
Inventors: Adolph Rosenberg
Original assignee: Individual
Current assignee: Individual
Priority date: 1909-02-24
Filing date: 1909-02-24
Publication date: 1909-10-19
Anticipated expiration: 1926-10-19

Description

A. ROSENBERG.

noon 01mm. APPLICATION FILED FEB. 24, l9 09.

Patented Oct. 19, 1909.

Guineas. WASKINGION n c.

ADOLPH ROSENBERG, OF BUFFALO, NEW YORK.

DOOR-CHECK.

Specification of Letters Patent.

Patented Oct. 19, 1909.

Application filed February 24, 1909. Serial No. 479,725.

To all whom it may concern:

Be it known that I, AnoLPH ROSENBERG, citizen of the United States, residing at Buflialo, in the county of Erie and State of New York, have invented certain new and useful Improvements in Door Checks, of which the following is a specification.

This invention relates to locks and latches and more particularly to an improved door guard.

The object of this invention is to provide a device of this nature which may be employed in lieu of the chains and bolts long in common use, and which is of such formation as to prevent the breakage or picking of the same by persons entering from the outside of the door.

The invention has for another object the provision of a door guard of this nature, which, when positioned, occupies comparatively small space; is of simple operation and one which will admit of the opening of a door to a limited extent without the necessity of entirely releasing the same.

A still further aim of this invention is the provision of a device of this character, which is of simple construction, thereby producing a device which is applicable to doors and casings therefor of common construction and one which may be produced economically.

For a full understanding of the invention and the merits thereof and to acquire a knowledge of the details of construction, reference is to be had to the following description and accompanying drawings, in which:

Figure l is a detail in section showing the guard as applied to a door and casing; Fig. 2 is a front elevation of the hasp detached; Fig. 3 discloses a top plan of the guard as applied to a door in a partially open and locked position; Fig. 4 is a detail of the base plate and locking ball carried thereby; and Fig. 5 is modification of the hasp.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters. 7

Referring to the drawings, the numeral 10 designates a plate which is provided with a plurality of eyes 11 which are adapted to receive a pintle 12 therethrough for the purpose of hingedly supporting a pair of links 13 which extend outwardly therefrom. The

plate 10 is adapted for engagement upon the inner face of a door casing 14 and to'be engaged. upon its outer face by the edge of the door 15 when in a closed position. The links 13 are provided upon their-outer free extremities with offset eye portions 16 which are extended oppositely and which receive studs 17 outwardly and oppositely disposed upon the edges of a hasp 18 at the inner end thereof. The portions of the hasp 18 which carry the studs 17 are enlarged outwardly to form flanges 20 which are adapted to register and to coact with flanges 19 formed inwardly of the links 13 for the purpose of admitting of the passage of a ball 21 therebetween, which is carried upon an outwardly raised rib 22 formed upon a base 23, which is carried on the inner side of the door 15. The rib 22 is adapted to slidably engage within the slot formed intermediately and longitudinally of the haspvl8 which forms a continuation of the space interposed between the links 13 and in which the rib 22 is adapted to engage. WVhen the rib 22 is engagedwith the hasp 18, the same is secured in such position by means of a thumb latch 24, which is pivotally and frictionally disposed upon the outer edge of the rib 22 at the rear end of the same. The thumb latch 24;, serves to retain the rear end of the rib 22 within the hasp 18, while the ball 21 looks the forward end thereof by virtue of its engagement against the outer face of the hasp 18.

In the drawings is disclosed a slightly modified form of the invention in which the plate 25 which is carried upon the door casing 14 isprovided at its outer edge with a pintle 26 which supports the inner extremities of the arms of a hasp 27, the hasp 27 being provided with flanged portions 28 adjacent the rear or inner extremity of the same, against which the ball 21 is adapted to engage when positioned therein. This modified form of the device is adaptable to doors which are so formed and positioned within the casing, as to dispose their inner faces flush with the inner faces of the casings which are disposed thereabout. The object of this construction is to enable the operator to swing the hasp 27 backwardly against the inner face of the casing, so as to position the same out of the way, thereby eliminating the danger of the engagement of clothes or the like thereagainst when passing through the casing. The employment of the preferred formation above described is for the purpose of door casings in which the doors are seated inwardly of l the inner faces of the casings, and in order to swing the hasp 18 against the inner faces of the casings, it is necessary to provide an intermediately hinged portion to engage the inner sides of the casings to extend the hasp rearwardly or inwardly to a suflicient degree to admit of the swinging backwardly of the same. r

The operation of the device is as follows: When the door 15 is in a closed position the ball 21 is engaged against the outer edge of the plate and the links 18 are disposed upon the opposite sides of the rib 22. The hasp 18 is swung inwardly against the door to lie in parallel with the links 13 upon the opposite sides of the rib 22, when the thumb latch 24 is partially rotated to engage the base portion thereof against the outer face of the hasp 18, thereby locking the door in a closed position. hen it is desired to open the door a slight distance only and to retain the same in a locked posit-ion, the thumb latch 24 is rotated into the plane of the rib 22 when the door is drawn inwardly, j which again causes the outward swinging of the links 13 upon the plate 10 and causes i the sliding of the forward extremity of the rib 22 against the flanges 20 and 19 respectively to engage the ball 21 against the outer face of the hasp 18, thereby preventing the displacement of the hasp 18 from the door. The ball 21 is permitted to slide the full length of the slot which is formed in the hasp 18 and to admit of the opening of the door 15 equal to the length of the hasp 18. \Vhen it is desired to entirely release the door the same must be brought into a closed position in order to bring the ball 21 into engagement with the forward edge of the plate 10 to permit of the swinging outwardly of the links 13 and hasp 18, to release the ball 21 therefrom and to permit the same to pass between the links 13 at their inner extremities inwardly of the flanges 20. As the plate 10 is secured upon the inner face of the casing 1 1 and is secured in such a position as to admit of the positioning of the edge of the door thereagainst, it is readily observed that the same can not be removed by tools from the outside of the door and thereby forms a reliable and safe lock against intruders. l

' said base The above construction admits of the base 23 and the rib 22 to be made in one thickness for all forms of doors and casings so that it is not necessary to provide different sizes of the same when it is desired to place them upon doors which are seated inwardly of the face of the casing. The double hinged member disclosed in Fig. 2 admits of the retention of the hasp 18 in parallel at all times to the base 23.

Having thus described the invention what is claimed as new is:

1. A device as specified comprising a plate, links pivotally mounted on said plate, a hasp carried upon the outer extremities of said links, said plate adapted for engagement upon the inner face of a door casing, a base plate disposed upon the inner face of a door adjacent the outer edge thereof in alinement with said first plate, a rib longitudinally formed upon the outer face of said base for engagement between said links and in said hasp, a ball carried upon the forward end of said rib for engagement against the outer faces of said links and said hasp, and a thumb la'tch carried by said rib at the inner end thereof for engagement through said hasp against the outer face thereof.

2. A device as specified comprising a plate secured to a door casing, links carried by said plate in spaced relation and parallel to one another, a hasp mounted upon the outer extremities of said links, flanges formed in alinement on said hasp and said links, a base disposed upon the inner face of a door in alinement with said plate, a rib outwardly extended and longitudinally positioned upon for engagement through the said links and in said hasp, a ball formed on the outer end of said rib for engagement be tween the inner extremities of said links inwardly of said flanges carried thereby, and a thumb latch rotatably disposed on and in frictional engagement with the inner end of said rib, said thumb latch adapted for engagement through said hasp to engage the outer face thereof.

In testimony whereof I afiix my signature in presence of two witnesses.

ADOLPH ROSENBERG. [11. s] lVitnesses CHARLES E. Man'rznorr,

C. G. GROUMEYER.