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Publication numberUS448298 A
Publication typeGrant
Publication dateMar 17, 1891
Filing dateDec 3, 1890
Publication numberUS 448298 A, US 448298A, US-A-448298, US448298 A, US448298A
InventorsLeon Raphael Leoellier
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 448298 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

(No Model.) l I 4 Sheets-Sheet 1. L. R. LECELLIER.


No. 448,298. I Patented Mar. 17, 1891.


(No Model.) I 4 Sheets-Sheet 2.


I LATGH. No. 448,298. Patented Mar. 17, 1891.

(No Model.) 4 Sheets-Sheet v3.


No. 448,298. Patented Mar. 17, 1891.

FIE. 4-.

7M nanms Pu'ens cel. PHuTLMrmo', wAsHIHGToN. D. c.

(No Model.) 4 Sheets-Sheet 4.


LATGH. No. 448,298. Patented Mar. 17, 1891.




SPECIFICATION forming part of Letters Patent No. 448,298, dated March 1'7, 1891.

Application filed December 3,1890. Serial No. 373,414. (No model.)

T0 aZZ whom it may concern:

. Be it known that I, LEON RAPHAEL LECEL- LIER, of the city of Villedieu, Manche, France, have invented Improvements in Locks, of which the following is a full, clear, and exact description.

My invention relates to ixnprovements in looks on the push-andpull system, and is illustrated in the accompanying drawings, forming part of this specification, wherein-- Figure 1 represents an inside face view of the lock; Fig. 2, a horzontal sectionv of the samein the locked position; and Fig. 3, a simi'- lar section in the unlocked position, the rotary latch being just about to be shot into the catclrbox. Fig. ais an inside face/y` view'of the lock provided with tumbler-levers, and Figs. 5 and 6 are horizontal sections of the same lock with the rotary latch shot and in the unlocked and locked positions, respectively.

Figs. 1, 2, and 3 show the simplest form of rim-lock, a being the lock-case, Within the rim b of which is pivoted on a Vertical axis c a springless rotary latch (Z of the form shown, which works in combination with a lever c, which acts as a pawl or stop by engaging with a shonlder 011 the latch, and is operated by the pull-and-push handles f f as hereinafter described. The lock also has a safety-bolt g, (which may or may not be acted on by a friction-spring 71,) operatcd eitherfrom the outside of the dooi` by means of the key or from within the apartment by means of the knobs 'LI For the purpose of looking latch (Z in' its shot or projected position this latch (Z is provided with a lug o. The bolt g has in its side a recess av, which allows the passage of the lug t' by the bolt when said bolt is in its normal position. This bolt is so mounted in the case (Z that by pressing either knob z' t' when the lug t' is not within the recess cc the said recess will be pushed out of the path of the lug` v'0, and the solid portion of the bolt will block the passage of the lug, thereby preventing the latch from being rotated, thereby curely looking the latch.

The inside cover-plate j is fixed to the lockcase in the ordinary manner and carries the key-hole and spindle-hole liners 71; Ze.

The catch-box Z is beveled at m, and the The action of bevel m on lug o and of spring n on the rounded face p will be readily understood by comparing Fgs. 3 and 2. In the closed position shown in Fig. 2 the end g of the lever e is caused by the spring to fall behind the shoulder 8 on the latch (Z, so as to lock it in engagenient with the box Z. The latch is disengaged and the door opened from the inside by pulling the knob f (which slides on a fixed pin t) and causing the sliding spindle a to which it is attached to oscillate latchlever c and disengage it from the Shoulders of the latch (Z. The latch is then free to be turned back within the lock-case, as in Fig. 3, which position it is caused to assume by the pressure of the flat side of the nose of the latch against the box Z in the act of opening the door, the backwfard motion being limited by lever e, as shown in Fig. 3. Similarly the door is opened from the outside by pressing on the knob f' on the end of spindle u. To lock the latch the latter is provided with a lug o, and a bolt g is mounted in the lockcasing, said bolt having notches a; x', one x' to engage the bit of a key, which throws the bolt either np or down, so that the recess w will be shifted either in or out of the path of the lug r. Then the notch corresponds in position to lug` o, the latch cannot be retracted even should the latch-lever c have been disengaged from shoulder 8.

The looking-bolt g is operated from the outside by a key and 'from the inside of the apartment directly by the knobs fi. The lock representcd in Figs. 4, 5, and (3 is similar, ex-

cept that there is no outside knob, and that the looking-bolt g is operated from the inside only, so that when it is thus locked the latch cannot be opened from the outside even with a key. To fasten the latch from out-side with the key, the tumbler-levers yare lifted and a IOO sliding' bolt ,2' is throxvn by the key into ellgagenlent with a sholllder on the catcll (Z, so as to prevent it tnrn'ing. In order'to nnlock from outside, the key is in tl'oduced and turned so that it first actuates tlle bolt z, and then pulled so as to move level' e and disengage the shoulder 8. By tlle rotation of the key tlle tnmblel'-levers :1/ are lifted and tlle sliding` bolt z is l'etl'acted, and then by pulling on the key while its bit is engaged in the U- shaped. notch of lever c said level` is moved, so that the latcll is completely disengag'ed.

It is to be remarked, in corlelusion, that a very slight movelnent of the parts is required for looking and unlocking` the latch.

The details of construction may be varied Without departing from the prineiple of tlle invention.

I claim- 1. In a pull-and-pllsh latcll-loek, the combination, with a l'otal'y latch, of a level' engaging With tlle lateh, as described, and opel'- ated by the pllll-and-push spindle, and of a transversely-sliding bolt operated from the inside by hand and from the outside by a key for looking' the rotary lateh iu its shot or proje'cted position, as specifie'd.

2. In a pull-and'push latch-lock, the combination, with a rotary latch having. two Shoulders ol' recesses', of a level' e, engaging with the latch, as desel'ibed, and With the pllll-and-push spindle, and of a longitudinally-sliding bolt z, engaging in a recess in the latch and adapted to be operated by a key which is Controlled by tumbler-levers, as described.

In a pllll-and-pusll latch-lock, the combination, with tlle rotary latch having the lug 0 and l'onnded face 7), of the striking-bevel m on the catch-box and the spring n Within the catch-box fol' throwing` the latch into the locked position, substantially as described.

The foreg'oin` speeification of myimprovelnents in looks signed by lne this 15th (lay of November, 1890.




Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2552815 *Oct 26, 1945May 15, 1951Roethel Engineering CorpDoor lock
US2569044 *Oct 18, 1946Sep 25, 1951Waldemar A EndterLatch safety catch
US2603516 *Mar 28, 1947Jul 15, 1952Roethel Engineering CorpDoor lock
US2637580 *Aug 18, 1944May 5, 1953Roethel Engineering CorpDoor lock
US2637581 *Jan 11, 1945May 5, 1953Roethel Engineering CorpDoor latch
US2656208 *Apr 2, 1951Oct 20, 1953Janonis GeorgeDoor latch structure
US2665934 *Jul 10, 1947Jan 12, 1954SchonitzerDoor control mechanism
US3652113 *Aug 25, 1969Mar 28, 1972Jamison Door CoDoor latch assembly with pushbutton actuation
US6010168 *Nov 12, 1996Jan 4, 2000Johnson; James B.High security rotary latch
Cooperative ClassificationE05B83/16, Y10S292/37