US1771683A - Sliding-door latch - Google Patents

Description

July 29, 1930. M LUSSE'TTO ET AL 137 633 SLID ING- DOOR LATCH Filed Oct. 25, 192 2 Shets-Sheet l may gave/who's Jazzu'n ail l ass ezzo,

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'July 29, 1930. D, Lus's TTo ET AL 1,771,683

' SLIDING DOOR LATCH Filed Oct. 25, 1928 2 Sheets-Sheet 2- I V 1% i Jam z'azcz? if ass 6 IZQ, Q70??? as- 1 3 as are,

merited-Jul 29; 1930 Domitian Lussn'rro Ann- JAMES memo, OFOLS'I-IKOSHLNEBBASKAF snrnrne noon LATCH 1 Application filed October .25, 1928. Serial No- 315,011.

'lh'einvention relates to latch mechanisms iiorself-closing sliding doors, and in the pres- :entdisclosure, the improved latch means is 1 shown in connection with a safety bulletprootd'oor for bank cages, thedoor being hereinafter referred to" as a barrier.

' I-Ieretofore. latch mechanisms for holding self raising barriers in lowered position, have been very complicated and expensive j and have usually entailed the provision of a number of parts above theyfloor. It is, the

object of our invention however, to-p'rovide an exceptionally simple and inexpensive latch means which embodies no portions F above the floor except areleasing stud or studs to be foot-op'erated.

With the foregoing in View, the invention resides in the novel subject matter hereinafter described and claimed, description be ing accomplished by reference to the accompanying drawings.

Fig. 1 is a vertical longitudinal sectional view on line v11 of Fig. 2.

Fig. 2 is a horizontal sectional View on line 2-2 of Fig. 1. Fig. 3 is a view similar to a portion of Fig.

1 but showing the barrier raised and the switch for the alarm closed.

Fig. 4 is a vertical transverse sectional View online 44 of Fig. 1.

.Fig. 5 is a View similar to Fig. 4 but showing the barrier raised.

Fig. 6 is a detail vertical section on line 66 of Fig.4.

An outer cage wall 7 is shown, embodying end p0sts-8, a lower bullet-proof portion 9 and an upper openwork portion 10, the usual v counter or the like 11 being behind this portion.

140 The posts 8 are provided with'longitudinal channels 12 and a. normally lowered, bulletproof barrier 13 is slidable at its ends in these channels, its upper edge being normally about flush with the counter 11. Coiled tension springs 14 are shown within the channels 12 connected at theirlower ends with proj ec-'. tions 15 on the barrier 13 while their upper ends areanchored, for instance, by adjustable anchors 16.

ing 18 in the cage floor 19. Extending horizontally under this floor, is an elongated bar 20 having one end 21 which overlies the hook lT to hold" the barrier 18normally against ascent. This end of the bar is provided with --wardly from the barrier 13 through an open- 24 which a re disposed "underthe floor 19. Secured to andproj'ecting downwardly from the other end of the bar2Qis a second arm 25 which is preferably truly. vertical. The

. lower end of this arm isslidably received betw en he eam 4, a d a co l q pr s i .spr ng 26 surrounds SfLld arm between said beams and, the bar 20, so as to normally hold theilattenin engagement with the hook 17.

The parts 27 shown. at the upper-and lower ends of the spring 26,. are merely washers.

Th be m 4 are u a ly Spaced ap r t provide. a vertical guide-way for the arms 22 and'25 whereby said arms will be guided and [prevented from s winging laterally, in their .up and down movement between-thebeamS. j At longitudinally spaced points, the bar 20 is, provided. with upwardlyproj ecting v studs "28 which pass through openings 29 in. the floor 19. One of these studs is under the counter 11 and; the other is preferably near a desk or table 30 within the cage. In case ofjdanger, ZI PBI'SQDIWlthlH the cage may depr s either of he sm as andbysold in he,wil l swing the bar 20. to the positionof 5,]thus releasing it from engagement with the hook 17 and permitting-the springs rfthejlike 14 to immediately raise the bullet proof barrier 13. ,9 i

P ef rably v i fik s a a e l e fie 31.1mm ih ibizeni g .1 o as i ti n a in the hook 17 with the end 21, of the bar 20,

.Wh e efth b rr r. a ain r d b g waf tlly from its raisedpositiona I y parts'aboveldee r bed, we. are iiil l t i ed s- ;w111 1:mw-. ;a aa ll es ne l c ivn- By suitable ,wiring, this'a larm operatively con- A hook 17' is secured to and projects downf'nectediwith the upperpart pf In i connection with j the the wall portion 10, and we have illustrated I a switch plate 34 to bridgethe gap between these contacts when the barrier 13 is raised as shown in Fig. 3. Thus, simultaneously with closing of the openwork wall portion 10, an alarm is sounded, with the intent of frightening, the thieves or .leading. to their arrest, as may be desired.

Although the details disclosed, may be followed if desired, it is to be understood that within the scope of the invention'as claimed,

variations may be made. a We claim 1. In a latch meansfor holding a sliding door depressed; a horizontally elongated bar beneath a floor and having one end to engage a door-carried member, an arm secured to said'barat said one end thereof and pro ecting downwardly therefrom, means plvotally mountingsaid arm for substantially horizontal swinging to effect substantially horizontal movement of said bar from engagement with jthe dor ca'rried member, spring means a cting on' said bar'for holding it normally engaged with the door-carried member, and a V stud projecting upwardly from said bar "through the floor,'depression of said stud by door depressed,a horizontally elongated bar foot serving to swing said bar and armabout the pivot of the latter to disengage said bar from the door-carried member. 7

2. In a latch means for holding a sliding n-beneath'a floorand having one end for 'en- I V gagement with a door-carried member, an

said stud by foot serving to swing said bar and pivoted arm about the pivot of the latter to disengage said bar from the door-carried member.

4'. In a latch means for holding a sliding doordepressed, a pair of parallel horizontal arms being guided by said guideway to pre- -ventany lateral movement of the arms and the bar, a coiled compression spring surroundingsaid second arm for upwardly forcing said other end'of said bar and holding said one end thereof engaged with the doorcarried member, the lower end of said spring abutting the upper edges of said beams, and

' areleasing stud projecting upwardly through the floorfrom the bar. a

In testimony whereof we have hereunto affixed our signatures.

DOMINIOK LUSSETTO. JAMES FASSERO.

' arm secured to said'barat said one end thereof and projecting downwardly therefrom, I -means pivotally mounting-said arm'to'permit swinging movement of said bar from enspring means ac'tin'g on-said bar'for holding it normally engaged with -the-door-carried gagemenfi with the door-carried member,

- member, anda plurality of studs projecting I 'npwardly from longitudinally spaced portions' of said bar,

said studs extending through the'floor whereby depression of any stud by foot will swing said bar and arm aboutthe pivot of the latter to disengage said bar from the door-carried member. 7 In a latch means for holdinga sliding door depressed, a horizontally elongated bar beneath a floor and having'one end to engage v a door-carrie d member, an arm secured to t F said bar at said one end thereofand project ing downwardly therefrom, means pivotally mounting said arm to allow'swinging movement'of said bar from engagement'with the (1001C&1I1Gd member, a second armsecured downwardly therefrom, a stationary guide for said second arm,a spri'n surroundingsaid second arm for upwardly. orcing saidother' j endoffsmd bar and holding saidonefend thereof engaged-(with the doorcarried mem.

Fbe'nanjd a releasing studprojecting upwardly to the, other end of said bar and projecting fromsaid'b'ar through the floor, depressio'n'of'

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