US1708078A - Antipanic door-fastener-operating mechanism - Google Patents

Description

Apr 9,1929. w. B. BoLLEs ANTIPANIC DOOR FASTENER OPERATING' MBCHANISM Filed Nov. 24, 1924 Hal.

A V l ,ff/'Z mmv um WTTORNA'YJ.

Patented pr. 9, i929.

WILLIAM B. IBLLES, 0E MILWAUKEE, WISCONSIN.

ANV'I'IPANIC DOOR-FASTENER-OPERATING MECHANISM.

. Application filed November 24, 1924.. Serial No. 751,847.

This invention relates to anti-panic door fastener operating mechanism such as used in connection with doors, more particularly exit doors from theatres, halls, schools and other public buildings.

ln my co-pending application, Serial No. 683,537, filed December 31, 1923, 'l have disclosed means in connection with the fastener operating mechanism by which the operating mechanism may be positively held in a position in which the fasteners are released. The present invention has for an object to provide a restraining device for the operating mechanism which can be more quickly and easily adjusted to and from restraining position.

A further object is to provide an improved operating connection between the actuating lever and the fastener actuating slide by which the thrust of the lever is more effectively transmitted to the slide and there is less strain upon the slide engaging projection of the lever, and, in addition, to provide an action such that when the slide is held by the restraining means in fastener releasing -position theopcrating lever will swing freely.

A further object is to provide latches at thc top and bottom of the door so connected to the actuating slide that they are yieldingly held by gravity in projected strike engagingpositions and may be released by a movement of the slide and, in addition, to provide a connection between the floor bolt or latch and the slide, such that failure of the floor bolt to drop into its keeper will not interfere with the movement of the latch atvthetop of the door into locking position and lifting of the floor bolt out of locking position will not release the latch at the top of the door.

With the above and other objects in View Vthe invention may be said to comprise the devices illustratedV in the accompanying drawings hereinafter described Vandparticularly set forth in the appended claims, toget-her with such variations and modifications thereof as will be apparent to one skilled in the art to which the invention pertains.

Reference should be had to the accompanying drawings forming a part of this specilieation in which Fig. 1 is a perspective view showing a door with the improved locking device applied thereto; Fig. 2 is afragmentary vertical section showing the latch at the top of the door, the lock actuating slide and a portion of the tloorl bolt;'Fig. 3 is a detailed view showing the upper latch in front elevation;.Figs. fl and 5 are detail views showing a modification of the slip connection be tween the slide and floor bolt; Fig. 6 is a sectional detail view showing a further modification of the slip connection.

Referring` to the accompanying drawings, a locking device embodying the present invention is shown applied to a swinging door 1, the locking device including locking elements engaging the sill and lintel and mounted on the door adjacent to the free edge there-v of. Mounted on the inner face of the door adjacent to the edge opposite the hinges is:

attached a vertically disposed casing 2, in which is slidably mounted a vertical movable slide 3, to which the upper and lower latches are operatively connected. A rod l is rigidly secured to the upper end of the slide 3 and extends vertically along the face of the door into a latch casing 5, which is attached to the door adjacent to the upper edge thereof, the upper end of the rod t being` connected by a link 6 to the outer end of the latch member 7, which is mounted intermediate its ends upon a horizontalpivot pin 8 so that Avertical movement of the slide 3 and rod t causes the latch member 7 to be swung about its pivot. The inner end of the latch member 7,'

which extends inwardly toward the door from the pivot pin 8, is formed to provide'a latching portion 9, which engages with a suitable keeper in the door casing tolock the door in closed position. l/Vhen' the rod 4c is in its lower-most position the upper'or strike engaging edge 10 of the latch member is held in a position flush with the top surface of the latch casing 5, the top of the latch casing being provided with a slot 11, through which the latch member may be projected. Attached to the lintel there is a keeper in the form of an angle plate 12 one flange of which is secured to the underside of the lintel and the other flange 13 thereof extends vertically along t-he outer side of the lintel and forms a strike'against which the latch member engages as the door is closed. Inwardly of the flange 13 the keeper is provided with a slot 14 which communicates with a recess 15 in the lintel into which. the latch member is projected to lock the door in closed position. rJllhe weight of the slide 3 and rod l tends to hold the latch member in projected position, and7 during the closing of the door, the edge of the latch member which is inclined upwardly away from thel door casing engages with the strike 13 causing the inner end of the latch member to be swung outwardly moving the 'fbolt lano slide 3 surii'- ciently to permit thelatch member to pass the strike 13. After 'passing the 'strike the weight of the parts causes the latch member to swing upwardly into'the recess l'tolock the, door.` While thelatch member is connected to. the actuating. slidetor gravity actuation. additional downward impetus may be imparted4 tothe rod Il: and slide 3 by'means of a compression coil spring '16y surrounding the.v rod l and'interposed betweenvthe'l'ower end ofmtlielatch casing 5 and awasher 17, which isrjtained upon a shoulder termed on the. rode, l v l 1 Mearfslis provided for lifting the'slidc 3 to releasfl door and thisl means consists oi' a lever 18 mpuntedon. aV horizontal pivotl 19 which is mounted in spaced ears 2O project-l ing outwardly trom, the outer wall ot the cas- 2, the lever lhaving a projection 2l eX- tending through a slot in the casing and intok elongated rvvertically extending slot 272 formed in the slide/3.l rl`he end walls 23 and 24 of 'the' slotf22 converge inwardly so that endy portionl of the projection v2l hasv a cam, action against vthe inclined faces "23 and thereby, exerting a. greater lthrust in'an endwijsedirection upon. the slide 3. The projection2lvis.preferably tormedwith a roundi ed end, portion 2PM-and curved side portions 2l"Q merginginto the. rounded end portion, thev portionsf2lb being` formed. on an. in'volute curve, such that the projection rolls without slippage upon` the inclined end. wall oi the slot during'themajpr portion ot the upward ino/vement, 'the rounded end 21a sliding upon theinclined wall, during, the final portion of thestrde whereby a greatly increased lever.- age is:obtained. Thel latch releasing movement,- of the slide` is in. an upward direction andthelever 18 is sofdisposedthat when it is pushed 4.toward lthe door the slide will. be

inoved,upwardly` to release the door. To pro-l vide for more convenient actuation. of they lever: ar od.2 5 is attachedto the outer end ot the lever 1:8;and extends across the door to an arm26which is pivoted to the door adjacent the hinged edge thereof on a. pivot coaxial Y tically4 disposed slot. 30 which is of suicient lengthz'to permit the downward movement of moscas the slide 3 necessary to move the upper latch member 7 intolojc-lzingy position in ease the bolt 27 should fail to drop into its keeper 31 l in the door sill or floor. It sometimes hap-V pens t-hat-tlhe floonbolt keeper becomes filled with dirt soA that the floor bolt is prevented trom moving 'to locking position. By reason of the connection above described this iailure of the floor bolt to latch would not inter-` ere with the lockingroi the door at'thetop v or-with the 'actuation ofthe releasing mecha-f nism. Furthermore, thelifting oi' the Hoor bolt by inserting a thin tool beneath the door would not release the door since this movement of Vthe'loor bolt would have no'eect upon they latch at the `top oi:l the door. i

It -issometimos desirable that the doors be permittedV to swing vfreely without latehing in order -to preventunneoessary wear uponthe: latches and latchoperatingmechanism and to permit moreconvenient access to, andv jfrom a `room of a building.V To this end means is soV provided for locking-:the latch-actuating SlideY in a position such that bothothelatches are held in retracted position. For retaining the slidey 3 in its uppermost positionl a. stop, plate 32 is.- attached to the-inner side ofthe door. immediately below the casing 2jy and Athe slide isprovided adjacent-its lower end withja set screw 33 extendingtherethrough. Nhen the slide is.` in its. uppermost positionfthe set screw 313 may be screwed-,iilgwardlyA toward the door-toproject the inner endthereoiover the upper-edge ofthestopplate 32 so that the weight of theV slidewill'. be supported, uponl a stopplate 32' and downwardrmovement thereof prevented. Theslot 22 inthe slide 3 into eoV whichtheprojection2lo theleverextends is y of such lengthv and soj positioned that when thezslide-isheld by theset screw 33 ilritsfupperniost Iposition the lever- 1 8 isfree` vto swing as, far as permitted by the abutmentsotthe casing 2g in either ydirection so that!V actuation Qi. thel level when. the fastener actuating mechanism.: shelfl infreleasea residen Canfnot Cause injury te: @Hapert-ofthe fastener mechanism.

In Figs. 5 and 6 afmodiication slip Gonnecn-l-b'etweenthe Slide.andifloelbolt 27 is shown. In this' mod'lGltionlthevupper end of the bolt 27? fits-zijn the x.bore28 andthe portion thereof l which its-. withinfthenbore Vis provided with an. .elongated -lQngitnd-inallly extending slot 34C` which has; an arcuateboty tom 35, theslot 34 being -formed.by;afoircular carried by the slide 3 projects into the slot-34 within thebore 28'and byfadjUSting-the; pin Y V36 ,in and fout the Epin may, be positioned-to engage different. parts of the aronatefbottom .'35 of the slot,VVA thereby permittingtheZbQlt-to have f greaterl :or less play., in .thefslidegto `meet thev requirements ,of a l.partic-ulan installation.

Fig. Zgshows a mod-niediorinot'E connection in which the bolt is provided with an elongated slot 37 which is engaged by a pin 38 fixed to the slide and projecting into the bore 28.

Having described my invention, I claim:

1. A lock actuating device comprising a casing, a fastener operating slide movable in the casing, means carried by the casing for actuating the slide in a direction to release the fastener, a stop member carried by the slide and adjustable transversely with respect thereto, and a relatively fixed stop member with which said adjustable stop member may be engaged` when the slide is in fastener releasing position to lock the slide against movement away from fastener releasing position.

2. A lock actuating device comprising a casing, a fastener operating slide movably mounted in the casing, means carried by the casing for actuating the slide in a direction to release the fastener', a transversely disposed set screw carried by the slide, anda relatively fixed stop member with which said set screw may be engaged when the slide is in fastener releasing position to hold the slide against movement away from fastener releasing position.

3. A lock actuating device comprising a casing, a fastener operating slide mounted in said casing, said slide having a longitudinally extending slot, a lever pivoted upon the outer wall of the casing and having a projection extending into said slot, said projection being engageable with an end wall of the slot to shift the slide to fastener releasing position, and means for holding the slide in fastener releasing position, said slot permitting free pivotal movement of the lever when the slide is so held.

4. A lock actuating device comprising a casing, a fastener actuating slide in said casing, said slide having a longitudinally eX- tending slot with an outwardly inclined end wall, and a lever pivoted to the outer wall of the casing, said lever having a projection extending inwardly from the pivot into said slot, the end of said projection having a cam action against the inclined end wall of the slot` to shift the slide to fastener releasing position.

k5. The combination with a door, of a fastener mechanism carried thereby comprising a casing, a vertically movable slide in said casing, a latch adjacent the top of the door, operatively connected to said slide, and a bolt depending from said slide, said bolt having a limited sliding movement in said slide.

6. The combination with a door, of a fastener mechanism comprising a casing, a vertically movable slide in the casing, means carried by the casing for lifting the slide, a bolt depending from the slide, and a connection between the bolt and slide permitting vertical play between the bolt and slide, said connection having a part adjustable to vary the amount of play between the slide and bolt.

' 7. rIhe combination with a door, of a fastener mechanism comprising a casing, a vertically movable slide in the casing, means ,carried by the casing for lifting the slide, and a bolt depending from the slide and having a pin and slot connection with the slide, the slot being of varying depth and the pin being adjustable whereby the extent of movement of the pin in the slot may be varied.

In testimony whereof, I hereunto affix my signature. j

WILLIAM B. BOLLES.

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