US1250574A

US1250574A - Fastener for doors.

Info

Publication number: US1250574A
Authority: US
Inventors: Henry L Ferris
Original assignee: Hunt Helm Ferris & Co
Current assignee: Hunt Helm Ferris & Co
Priority date: 1916-12-26
Filing date: 1916-12-26
Publication date: 1917-12-18
Anticipated expiration: 1934-12-18

Description

H. L. FERRlS. FASTENER FOR DOORS.

APPLICATION FILED DEC-26, l 916.

Patented Dec. 18,1917.

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u. L. FERRIS. FASTENER FOR DOORS.

APPLICATION FILED DEC. 26. 1916; 1,250,574. Patented Dec. 18,1917.

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To all whom it mayconcern:

Be it known that I, HENRY L. Fnnms, a citizen of the United States, residing at Harvard, in -the county of McHenry and State of Illinois, have invented new and useful Improvements in Fasteners for Doors, of which the following is a specification.

- My invention relates to certain new and useful improvements in fasteners for doors, and is fully described and explained in the ,specification and shown in the accompanying drawings, in which:

Figure 1 is a perspective, showing the door arrangement to which my lock is applied. Fig. 2 is a horizontal section on the line 3 of Fig. 1, and Fig. 3 is a vertical section on the line? of Fig. 2.

Referring to the drawings, 5 is a track above the door-opening, and 6 is a track at rightangles thereto, and secured to the wall of the building. The door is supported by two

hangers

7 and 8, respectively mounted in the two tracks 5 and 6, and therefore at right-angles to each other. 9 is a door, which, when opened, swings back under neath the track 6, the hanger 8 moving in said track backward from the door-openmg, and the hanger 7 movingalong the track 5 until the door is parallel to and beneath the track 6.

It is obvious that a sliding door of this kind requires a different look from those commonly in use, for the reason that while the ordinary sliding door is usually locked at its front end, that is, at the end which is forward in the closing movement of the door, such a lock is wholly unsatisfactory on a door of this kind. If the front end of the present door be locked, the rear end can swing back a. considerable distance, owing to the necessary lost motion of the doorlock, and it will be blown partiall open by wind. My present look, there ore, is applied to the rear end of the door and is designed to draw the same forcibly forward in a direction at right-angles to the plane of the door.

For this purpose the door is perforated at 10. Into the perforation is set a metal cup 11, in which is supported a yoke 12, normally spring-pressed backward by a spring 13, the backward movement being limited by a pin 14. The back end of the yoke is inclosed by a cap 15, held in place by a bolt 16. The arrangement is such that the Specification of Letters Patent. Application filed December as, me. Serial No. 1aa,s11.

with the hook 20 swings past the prolonga- Patented Dec. 18,1917.

tion of the line connecting the yoke wlth the pivot of the lever, or, in other words, past the dead center. The lever is thus of the self-locking kind. Its locking m'ovement toward the door-jam-b is limited by engagement with an ear 21, which enters the groove 22 in the lever 19 and which is provlded with a perforation 23, through which an ordinary padlock may be passed to lock the lever in closed position.

The structure is thus one which holds the door firmly closed, and with a yielding tension exerted at right-angles to the plane of the door. ThlS not only prevents the door from being opened to an extent sufiicient to afford access to the structure, but it holds the back end of the door, which would otherwise be free to move inward, firmly against the door-j amb, and affords, for this par.- ticular type of door, a thoroughly satisfactory lock.

I' realize that considerable variation is possible in the details of-this construction without departing from the spirit of m invention; therefore I do not intend to imit myself to the specific form herein shown and described except .as pointed out in the following claims, in which it is my intention to claim all the novelty inherent in the construction as broadly as is permitted by the state of the art.

What I claim as new and desire to secure by Letters Patent is 1. Locking means of the character described comprising a door having a perforation therein, a bearing seated in said perforation, a spring-equipped yoke movably mounted in said bearing and having its inner end lying substantially in the plane of the door, a cap closing the outer end of the aperture through the door, a hook supported from the door j amb and adapted to engage said yoke, and means to draw the hook outma am wardly from the plane of the door to draw from the door jamb and adapted to enga e and lock the door against the door jamb. said yoke, a lever ivotally mounted on t e 2. Locking means of the character dedoor jamb and plvotally supporting said scribed comprising a door having a perforahook whereby a swinging movement of said 5 tion therein, a bearing seated in said perlever will draw the door toward the door 15 foration, a spring-equipped yoke movably jamb.- mounted in said bearing and having its in- In testimony whereof I have hereunto set ner end lying substantially in the plane of my hand this 20th day of December, 1916. the door, a cap closing the outer end of the 10 aperture through the door, a hook supported HENRY L. FERRIS.