US1350299A - Rim night-latch - Google Patents

Description

IIII I; I lIIIII!I- A T. E. CROUCH.

RIM NIGHT LATCH.

APPLICATION FILED FEB. 24. 1920.

Patented llg. 24, 1920.

I I i f l III UNITED STA-TES PATENTQCFFICE.

THoMAsE. CRoUCHfoF STANFORD, CONNECTICUT, AssIsNoRTo `'ri'n'YAIm '&"T0WNE MANUFACTURING COMPANY, or sTAMronn,V CONNECTICUT.

, 1mi/I NIGHTLATCH.

Specification of Letters-Patent.v l .Putntod Allg', 24,1920.

Application filed` Erelriruary` 24,` 1920. Serial` No. i #361;025.

To all/whom it may concern:

Be it known that I, THCMASr E. Cnoucii,`

in'night latches, the object being to provideimproved means for securing the bolt `mechanism to the door independently of the casing so that the operation'oi' k the bolt may be visibly tested heitere assemblingthe. casing or cover, and it consists ina'spider secured to the door and carrying thebolt mechanism and a 4casing` i detachably.secured to Vthe spider. y l

ltiurther eonsistsin the details of construction as will be more fully explained and pointed out in the claims.

In the accompanyingdrawings; Figure 1 is a view `in elevation of thelatch kand its keeper; 2 a view yin section through the casing, betweenthe wrought metal'plate and the enter, tace ci' the casi-ng to which the' said plate is attached, and also through the keeper; Fig. 3 is a view in elevation of the casing from the open side thereof; Fig. 4 is a view in elevation of the spider attached to the door and farryi'ng thefboltz, mechanism; Figx is a view in longitudinal transverse section of the latch'and' .its keeper; Fig. 6 -is a view in perslrective'ot the keeper and Fig. 7 is a view in front elevationfofth casing.

10 represents the spider secured by screws 11 to the door 12 and provided at one end with the flange 13 slotte'dfor the passage oi thebolt 14 whichl'atter is projectedby a spring and is retracted by a roll back 15 on the knob shank 16v, in the usual and well known manner. The bolt may of course be retracted by a mechanism 15al actuated by a key from the outside of the door, in the usual and well known manner.

The spider 10 is also provided at its side 17, each of which is provided with an outwa1`dlyturned tongue 18 asshown in Figs;

4 andj. i

`The `casing 19 which an integral structure punched and drawn from a metal lank, comprises an outer face plate vand integral' ends and sides, one end Vhaving an opening corresponding in size and [position with the opening in flange 13 of thevr spider for thepassagefoiithe*bolt 14D Secured within the ycasing 19 and against the inner surface oit the lcasing isthe :wrought metal plate 2() havingl lugs ALil" which' enter recesses in tlie'sides and ends of the casing for perinanently securing it to' the latter. This )late which carries the bolt sto nn" device as shown in Fig. 3,` is provideiilat its opposite sides with the integral right angled hook shaped lugs 21 whichare adapted to engage the outwardly turned tonguesl on the side flange 17 of the spider lO'forloeking the casing to the spider and consequently to the door. i

p ln assembling f the parts,-,thel spider or 'frame with the bolt assembled therein is secured to the I door and itsl operation visibly tested before applying the 'casing j The lattery is passedover thefprojecting end ci? the bolt and thenmoved endwise rearwardly until the front end of the esingis in contact with'the endr flange 13 ofthe spider,

this rearward endwise movement carrying the hook shaped lugs 2l onY the wrought metal plate Q0 under the outwardly turned tongues 18,on the spider. After the parts have vbeen thus assembled and secured,l t-he casing is further secured tothe spider, by the screws 22 passing through the outer end of the'casing and engaging screw threaded holes'23in the end-flange 13 of the spider thus*v positively', locking lthe casing' to the spider. Togremove the casing the door should be opened so asto expose the lhead of the screw Q2 and the latter removed. `The casing Vis then moved endwise forwardly so vas to Ydisengage the lugs 21 from the tongues 18 and then by retracting the latch bolt it can be lifted off the spider.

The bolt may be retracted by the knob at the inner side of the door, and by key mechanim 15a in the usual manner from the outer s1 e.

The knob 24 is provided with a shank 16 which passes through the outer face of the casing and through the wrought metal plate 20 and its end is upset or spun over thev cam or roll back l5 and thus operates to permanently secure the plate 2() to the casing 19.

`The outside sheet 25 of the strike plate or keeper is also drawn from a single blank A and is provided at the inner face of its front or strike plate with a steel reinforcing or" provided atits opposite edge withk one or more tongues 31 which rest in recesses or slots in the outside shell of the strikeV plate or keeper. When the parts of the latter are assembled as shown and secured by rivet 32, the plate 30 is permanently secured Within the strike plate so that the latter can be handled as a unit.

It is evident that many slight changes might be resorted to in the relative arrangement of parts shown and described without departing from the spirit andscope of my invention. Hence I would have it understood that I do not wish to confine myself to the exact construction andarrangement. of

- parts shown and described but,

. Having fully described my invention what I claim as new and desirey to secure by Letters-Patent, is

l. The combination of a spider adapted to' be securedto a door, a bolt and its mechanism mounted in and carried by the spider,

and a casing detachably secured to the spider. Y

2. The combination of a spider' adapted to be secured to a door, a bolt andv its mechanism carried by the spider, a casing, the casing and spider having interlocking engaging means and bolt actuatingv means carried by the casing.

3. The combination of a spider adapted to be secured to a door, a bolt and itsmechanism carried by the spider, acasing, the casing andy spider having interlocking engaging means whereby the' casing secured in place.v and removed by an endwise movement,Y and securing means passing through one end of the casing and through a member of the spider for locking the casing against endwise movement.

4. The combination of a spider adapted to be secured to a door and providedwith side flanges and an endl flange, a bolt and its mechanism carried by said spider, a casing havingl securing means interlocking with lugs on the side flanges of the spider, securing means connecting an end of the casing and the end flange on the spider and bolt actuating mechanism carried by the casing.

5. The combination of a spider adapted to be securedto a door, a bolt and its mechanism carried by the spider, a casing, a plate secured against the inner face of the casing and having means for interlocking with the spider, and means on the casing for actuating the bolt. Y

6. The combination of a spider adapted to be secured to a door, a bolt and its mechanism carried by the spider, a easing, a plate secured against the inner face of the casing and havingy means for interlocking with the spider', and a knob on the casing Vfor actuating the bolt, the knob spindle passing through the casing and plate and upset at its inner end against the inner face plate and locking the latter to the easing. y.

7. The combination of a spider adapted to be secured to a door and having side flanges, a bolt and its mechanism carried by the spider, a casing, a plate securedA against the inner face of the casing, the said plate and side anges of the spider having interlocking engaging means, and a knob carried by the casing for actuating the bolt.

8. VThe combinationv of a spider adapted to be secured to a door and having side flanges and an end flange, a casing, a plate .secured to the casing and against the inner surface ofthe outer face of the latter, the said plate and spider having interlocking securing means, means passing through one end of the casing. and the end flange of the spider for locking 4the two parts together, a bolt and mechanism carried by the spider and means for actuating the bolt. p

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

y THOMAS CROUCH. Witnesses:

STUART B. AVERE,l CHARLES A. BERRY.

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