US1868491A - Swing door keyless locking device - Google Patents

Description

July 26, 1932. R. w. BRONSON SWING DOOR KEYLESS LOCKING DEVICE Filed March 8, 1952 2 Sheets-Sheet l R w o E M. Q\NQ\ \nw. W W s m. w w M M 7m J. I y ll \THHHvHHHv I I M M w I M 1 WM W July 26, 1932. R. w. BRONSON SWING DOOR KEYLESS LOCKING DEVICE Filed March 8, 1952 2 Sheets-Sheet 2 N V E N TO R Evie/'4 M 5/14/7102:

ATTORNEY! Patented July 26, 1932 UNITE STATES PATENT OFFICE RIOHILRD W. BRONSON, OF SOUTH EUCLID, OHIO, ASSIGNOR TO THE VAN DOB-N IRON i WORKS COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO SWING DOOR KEYLESS LOCKING .DEVICE Application filed March 8,

This invention relates to locking means for jail doors and more particularly tokeyless locking means for remote operator control, especially applicable to swi'nging'jail doors.

' An object of the invention is generally to insure that a door is locked, wheneverit is closedand thecontrol mechanism is set in locked position, and to provide that when- I ever a door is open its control mechanism will not indicate locked.

Another object is to means for the door.

' The exact nature of this invention together 'withfurther objects and advantages thereof will be apparent from the following description taken in connection with the accompanying drawings, in which Fig. 1 is a view in eleprovide novel latch vati'on showing a cell front wall in which an embodiment of my invention is incorporated, parts being brokenaway to show details of construction; Fig. 2 is adetail as in the horizontal plane of line 2 -2, Fig. 1, and including broken lines to indicate operation of the parts there shown; Fig. 3 is an enlarged detail in horizontal section as in the plane of line 3-3, Fig. 1; Fig.4 is a correspondingly,

enlarged sectional elevation as in the plane of line 44, Fig. 3; Figs. 5, 6 and 7 are further enlarged sections in the same plane but viewed from the opposite direction, showin the parts in different relative positions; and

Fig. 8 is a section as in the plane of line 8-8, Fig. 5.

With reference now to the drawings, 1 is the first door of a row of cells indicated by the cell front appearing in Fig. 1. The door is a swinging door hinged to move about the rod'2 to open outwardly from and close against a hollow pilaster 3. r V Q A look bolt 4 is mounted. in the pilaster 3 for sliding movementthrough an opening therein to engage an opening 5 in the edge frame member 6 of the door, to lock the door inclosed position, as indicated in Fig. 3.

Means are provided for remote operator, control of said lock bolt, as from a control lever 7 at the end of the cell row. As indicated, 'suchmeans comprises a bell crank 8 having one arm associated'with the lock bolt 4 and the other connected to a pull. rod 9 extending 1932. Serial No. 597,509.

bolt outwardly locked position; I Means are provided, however, for preventmg movement of the lock bolt to locked position except when the door is closed and conseguletntly in a position to be so locked by the To this end I arrange a bar 14 within the pilaster for vertical sliding motion along the pilaster wall adjacent the door. This bar may be mounted by means of a plurality of slots 15 each about a fixed pin 16. The bar is provided with an opening 17 to receive the bolt 4, and the mounting of the bar is such that it may have a lower position wherein the lock bolt opening in the pilaster wall is masked by the bar, and an upper position wherein the openings in the bar and in-the pilaster are aligned to receive the lock bolt. This latter uncovering position is indicated in Figs. 1, 3, 4, 5 and 8. I

The bar 14 is balanced to its lower or masking position by its own weight and preferably also by a spring 18; so that whenever the lever 7 is manipulated to withdraw the lock bolt 4, the bar 14 will be released by its control mechanism to drop to masking position provided tongue 20 is partly or wholly Y withdrawn, masking the bolt opening in the 90 pilaster 3 and preventing return of the bolt to locked position. The parts are so proportioned and. arranged that the withdrawing stroke of the lock bolt is suflicient for this purpose. 95

Means are provided for raising the bar 14 to uncover the lock bolt as the door closes. Such means include a bevel or cam surface 19 as on the bar 14, and a cooperative tongue 20 mounted on the edge of the door 1 to enter I an opening 21 in the pilaster as the door closes, these parts best,appearing in Figs. 4-8 inclusive. Thus except when the door is fully closed and in a' position to receive the lock bolt, thebar 14 will be positioned to prevent the lock bolt from projecting from the pilastegthe barcompl'etely masking the pilaster" bolt opening until the door is substantially closed.

That the bar 14 cannot be raised by insertion of means through the opening 21,. I provide at the top of the bar means blocking its raising motion at all times except when the door is closed. For this purpose the bar 14 extendsupwardly so that its upper extremity bolt22',,anda.spring; 25 is arranged'to yieldably urge the'stop bolt toa position blocking the bar 14. The rod. has: a lost motion con.- nectionas by the slot 26' so proportioned and I arranged that the "stop bolt '22 is released to the action'of the spring 25 to assume blocking 'positioir at'all timesexcept just as the door closes: s y

When the door is quickly closed by hand an'd immedi'ately pulled in the opening direction, the inertia of the lockbolt 4 and its-ap pu'rtenan'ces' mayslow down the outward travel of'thei'lock. bolt 4 so that it enters the opening 17 in thebar 14 but'its inertia does not-permithit; to travel sufiiciently fast to reach'ithe opening 5" in the door before the door is removed from the vertical plane of the lock bolt] TheYlock bolt'is thus permitted to move outwardly its full stroke, the lever, 7 will rise to the-locked position, but the door willbe open. To prevent such false indication, the'tongue'20 on the dooris provided 'with'afnotch 30and the bar 14 is provided with an eXtension31 carrying a latch bolt 32 of very slight mass cooperative with the notch 30. Thelatch bolt is arranged for limited vertical'sliding motion as by the slot and pinmounting means indicated 22.1133, and 'spring 34 serves to yiel'dably' urge the latch bolt upwardly. The latch bolthas the usual bevel 35'and theparts are soproportioned and arranged thatwhen the-bar 14 is in uppermost position the tongue'will" be engaged by the latch boltwhen thedoor is fully closed as in Fig, 5 {and when the bar 14 isin lowermost position Fig. 7,. the latch bolt will be withdrawn well below the path of the tongue. If now, the door. be quickly closed and immediately p'ul'ledor slammed back in the open.- ing direction, the latchv bolt 32, due, to its slight inertia. will engage the notch '30, before the door can be opened thus holding the door shut and necessitating the latch bolt4 entering the opening 5 upon completion of its stroke.

It Will be appreciated thatlas is usual in jails, a number of cells will be arranged in a'row all having similar doors, each having means for control from a common point. Thus in Fig. 1 o-fthe drawings, a second door and its controlling mechanism is indicated, the ,partspertaining to the second door hear,- ing; primed reference characters corresponding with those described in connection'with the first door. The first door is indicated as locked closed and the second doorunlocked and partly open.

' Operation will be apparent, assuming the door closed1butunlocked. Its lock bolt 4 has been. Withdrawn and its bar 14 is left resting upon the tongue 20 offlthe door. Thus, although its control lever 7 has been fully depressed. to withdraw its-bolt, until the door is opened upon release of the lever the latter may return to locked position by. which the door would be indicated as again locked.

The door being unlocked, the bar 14 is free torest upon the tongue 20.. As the door opens, however, thetongue 20 is withdrawn allowingithe bar -14 to drop toinasking position". Thereafter upon release of the control'lever 7 the latter will not return to its upper or locked position, so that the door will be indicated to theaoperatorinot only as unlockedbut alsoas not closed. Also, as the door opens and immediately the barl4 is lowered to masking position, the stop bolt .22ym'oves, over the bar to block itsreturn to unmask the lock bolt. H

Upon reclosing of'the door, if the control lever 7 Y be free to move, therstop bolt 22 is withdrawn, the bar 14 raised, and the bolt 4- slid ilnto the door under the action of the nism is set in lockedpo'sition and .door

is closed.

' The mechanism within the pilaster is, of course, protected against tampering, by the pilaster itself The mechanism above the "doors, and that connecting with the control levers is likewise. protected by the usual cover 27. I

7 What I claim is: V 1. In combination with a ail door, a lock bolt for said door,.a bar arranged for movement between a'position masking said bolt to prevent'its entryinto'said door, and a pooperator-controlled means for sitionuncovering said bolt to allow its entry into said door, said bar being balanced to said masking position, means providing for door actuation of said bar to move the latter to uncovering position as said door completes its closing movement, a stop bolt arranged to block the pat-h of said bar to prevent movement of the latter from masking position to uncovering position, means associating said stop bolt with said door to cause withdrawal of said stop bolt from bar-blocking position only as the door closes, and means providing for operator control of said look bolt subject to the control had by said 2. In combination with a swinging jail door, a lock bolt for said door, means yieldably urging said lock bolt to locking position, withdrawing said bolt from said position,a bar arranged for movement between a position masking said bolt to prevent its entry into said door, and a position uncovering said bolt to allow its entry into said door, said bar being balanced to said masking position, means providing for door actuation of said bar to move the latter to uncovering position as said door completes its closing movement, astop bolt arranged to block the path of said bar to prevent movement of the latter from masking position to uncovering position, and means associating said stop bolt with said door to cause withdrawal of said stop bolt from bar-locking position only as the door closes.

3. In combination with a swinging jail door arranged to close against a pilaster, a lock bolt for said door arranged in said pilaster to project through an opening therein, a bar arranged in said pilaster for movement between a position masking said opening to prevent projection of said bolt therethrough, and a position uncovering said opening, said bar being balanced to said masking position, means providing for door actuation of said bar to move the latter to uncovering position as said door completes its closing movement, said means comprising coo erative cam parts on said bar and on said 001', said pilaster having an opening to allow cooperation of said cam parts, a stop bolt arranged to block the path of said bar to prevent movement of the latter from masking position to uncovering position, means associating said stop bolt with said door to cause withdrawal of said stop bolt from bar-blocking position only as the door closes, and means providing for remote operator control of said lock bolt subject to the control had by said bar. 7

4. In combination with a jail door, a lock bolt for said door, lock bolt controlling means, a bar arranged for movement between a position masking said bolt to prevent its entry into said door, and a position uncovering said bolt to allow its entry into said its closing movement, and latch means car- 1 ried by said bar and cooperative with means on said door to secure the latter in closed position, as when the door is slammed, sufficiently long to insure engagement of the door by said lock bolt if its control has been set for locking.

In testimony whereof I hereby afiix my signature.

RICHARD W. BRONSON.

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