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Publication numberUS266903 A
Publication typeGrant
Publication dateOct 31, 1882
Filing dateMay 24, 1882
Publication numberUS 266903 A, US 266903A, US-A-266903, US266903 A, US266903A
InventorsJules T. Schertzer
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Half to charles h
US 266903 A
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Description  (OCR text may contain errors)

2 Sheets-Sheet 1.

(No Model.)


Patented Oct. 31, 1882.




SPECIFICATION forming part of Letters Patent No. 266,903, dated October 31, 1882.

' 7 Application filed May 24, 1882. No model.)

To all whom it may concern: 7

Be it knownthat I, JULEs T. SCHERTZER, (of the United States Army,) ofJefi'erson Barracks, St. Louis county, State of Missouri, have invented a certain new and useful Door-Fastening Device, of which the following is a specification, reference being had to the accompanying drawings, forming part of the same.

My invention consists, first, of a bolt or bolts thrown into engagement with the door by lever or levers operated by the bolt of the doorlock as it enters the keeperupon the door-post, and relates to a device for releasing the locking-bolts from the outside by means of the door-key. t

Figure l is a front view of my improved fastening, the device being shown in its locked condition. Fig. 2 is a front view, showing the device unlocked. Fig. 3 is a section on the line 3 3, Figs. 1 and 2.

A is a part of the door, and 13 part of the door-post against which the door closes. C is an ordinary door-lock. The door is shown closed and locked in Fig. 1, the position of thelevers and bolts when unlookedbeingshown in Fig. 2.

D is the keeper upon the post B. Within the keeper is a vertical bar, F, against which the lock-bolt E impinges as itenters the keeper and pushesitinto the position shown by broken lines in Fig. 1. The bar F has a horizontal guide pin or finger,f, passing through a hole in the back of the keeper.

G is a semi'elliptio spring, and G is a spiral spring. Thefingerfpasses through both these springs. They bear against the back of the keeper and the bar F and tend to push the bar forward toward the door-lock.

f is a pin projecting from the bar Fthrough a horizontal slot in the keeper.

H is a ratchet, pivoted ath to the keeper, and having an inclined or ratchet tooth, h, engaging the pin f when the bar is in its rear position, as shown in full lines. The ratchet-tooth is shown upon the upper side of the catch-bar, and the bar is shown as held upward by aspring, h but it is obvious that it might be reversed in position, the tooth h being on the under side. Then itlwould act by gravity and the spring k might be dispensed with.

I are links connecting the ends of the barF to the ends of levers J, t'ulcrumed to the doorpost B atj. i

The levers J are slotted at their outer ends at j for the passage of pins is, projecting outward from the bolts K. The bolts K work between guides L, attached to the door-post, and when locked pass within keepers or staples M upon the face of the door. These staples are not essential, but impart added strength.

The device, as described, is complete if access can be had to the interior to unlock the door.

t I will now describe the device for releasing the pin f from the ratchet h by a suitable key from the outside.

N is a strap secured to the outside of the look by the ordinary screws, 02 n, by which the outer end of the lock is attached to the door. This strap has a number of pin-holes, it, into any one of which a fulcrum-pin, O, isinserted, this arrangement being made to accommodate the lever P to key-holes of different positions in the lock. The lever P is slotted at p for the passage of the fulcrum-pin O. The pin 0 has a head, 0, and between the head and the lever is a spiral spring, Q, which bears againstthe outside of the lever and keeps it in contact with the strap. One end ofthelever P is connected by an eccentric pin, a", to a disk, R, having a key-stud that is inserted in the key-hole ot' the lock from the inside and turns therein. Thus it will be seen that by turning the disk R the end of the lever P, connected thereto, is raised or lowered and the free end 19 of the lever is moved in the opposite direction.

It will be understood-that the disk is turned by a keyintroduced into the key-hole from the outside. The movement ofthe lever brings its free end against the free end of the ratchet H, and by pressure against the same disengages its tooth from the pin f to allow the bar F to move toward the door, which it then does, under the influence of the spring G, and draws back the bolts. with a stud to enter the disk, so that the bolt E is thrown back by the same movement that releases the bar-pin f from the ratchet or detent tooth It, so that there is no impediment to the described movement of the bar F in releas- The end of the lock-key is made 5 ing the door from the bolts K. There is a keyhole in the disk.

1 claim as my invention 1. The combination, with a door-look on one member, of a bar, lever, and bolt on the other member, the bar and lever being operated by the lock-bolt of the door-lock to throw the other bolt into engagement with the opposit member, as set forth.

2. The bar F, actuated by the lock-bolt E, with detent H to hold the bar F, lever J, and bolt K in looking position, substantially as set forth.

3. The combination, with the detent H, of




Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3788679 *Aug 2, 1971Jan 29, 1974Banham JDoor fastening units
US6176527 *May 4, 1999Jan 23, 2001Florin Investments LimitedSecurity locking mechanism
US7036852 *Dec 24, 2003May 2, 2006Hyundai Mobis Co., Ltd.System for operating the rod of a glove box
Cooperative ClassificationE05B65/0003, E05F11/00