US979027A - Elevator-gate. - Google Patents

Description

G. NIELSEN.

ELEVAT'QR GATE. ,APPLIOATION FILED PEB. 8, 1909.

' 979,027. l l l Patented Dec.20. 1910.

Arm/mfr enaisTIAN NiELsEN, or CHICAGO, rumors.

i ELEVATOR-GATE.

Specification of Letters Patent. p Patented' Dec. 20, 1910.

Application filed February 8, 1909. Serial No. 476.806.

To all whom if may concern:

Be it known that I, CHRISTIAN Niniisnx, a

citizen of the United States, residing in the city of Chicago, county of Cook. and State of Illinois,y have invented a ceitain new and useful Improvement in Elevator-Gates, of' h n n 1 weight 18, which-is limited by stop 19, or

vwhich the following is a specification.

This invention relates to automatically closing elevator gates. Its principal objects f are. to produce at slight expense a durablel and reliable device `occupying' but small space, and applicable chiefly to factory and freight elevators, by means of which quick and convenient ingress and egress` to and from such elevators and easy access to the controlling cable. is provided without the necessity of opening the gate to its full extent, and by means of which the gate when fully opened will be held open as long as the elevator is in position for the landing in question, yet the gate is automatically closed as soon as the elevator leaves such position. l attain these objects by the means illustrated in the accompanying drawing in which- Figure 1. is an elevation of my improved gate, as attached to the shaft-side of the wall or partition surroundino` the elevator, said gate being shown from tie side fronting the elevator-in wide open position. Fig. 2. is an elevation of my improved gate, as attached to the Hoor-side of the vWall or partition surrounding the elevator, said gate being shown from the side of the floor (looking toward the elevator) 'in closed position. Fig. 3. is a detail elevation of the automatic locking and releasing device lused in connection with my improved gate as shown in Fig. 1. Fig. 4. is a detail elevation of theA automatic locking and releasing device used in connection with my improved gate as shown in Fig. 2. Fig. 5. is a cross section at plane *7, viewed from above, of the device shown in Fig. 4. I

Referring to the drawings, partition 8, between an elevator shaft and adjoining floors or landings, is provided, near the upper edge 9, of opening 10, connecting one of said floors or landings with said shaft, with roller track i 11 which may be attached either to the elevator side of said partition, as in Fig. 1.) or to the door side of said partition (as inA Fig. 2.) From this roller track is suspended, by means of rollers 37, running on said track, bai` 12, provided above said rollers with eX-l tension 13, and at appropriate height above the floor with. lock 14, adapted to engage catch 15 whichis fastened to partition 8 on the same side as rollertrack 11. To bar 12 are fastened. likewise at appropriate height above the door, guard-cables 16, (or iii lieu thereof ropes or chains) running over rollers 17 and attached with their other ends to other appropriate means, from traveling higher than necessary to permit lock 14 to engage catch 15, the purpose of this limitation being to keep cables 16 from yielding to pressure when stretched across opening 10 by means of bar 12 being brought 'to the locked position shown in Fig. 2. To bar 12 is also fastened, preferably somewhat below roller track 11, cable 20, running over roller 21, and having fastened to its other end weight 22 which is sutliciertly heavy to pullbar 12 into the locked position shown in Fig.

1 (against the pull of weight 18 and cables 16) whenever bar 12 is permitted to yield to the pull of weight 22.

Stops 23 are provided on either side ofopening 1() to limit the movement of bar 12, and to bring it into strictly vertical lposition Awhenever the gate is fully opened or closed. Tubes 24 and 25 are preferably provided for weights 18 and 22, respectively, to travel in. To partition 8 is rotatably secured, by means of bolt or pivot 26, trigger catch 27, placed above roller track 11isin such a position that it may be barely passed by extension 13 when the gate consisting of bar 12 and cables 1G, is .fully opened. This trigger catch 27 is provided at its side facing away from roller 21 with eccentric weight 28, at its ther than necessary to bring extension 30` into vertical positioii,'pointing upward. EX- .tension 29 is so arranged as to be likewise in vertical position, but pointing downward, Whenever extension 30 is in vertical posi tion.l pointing upward. At its end opposite to that which contacts with extension 30, bolt 31, in the construction shown in Fig. 1., is provided with a roller or projection 32 adapted to be engaged by cani 33, fastened by appropriate means tothe upper portion wise Wl :o le

oit .shown in the drawmfj; device:y in such a boli against exension s travel; thus bringing mul exiension 29 into 'verfuue end is accomplished by a ,leali :o 3l fastened to one end Mseing' througll partition S, 1er :53ml of which is connected with bolt l with roller or projmvion Si; will Cause bolt; 3l to be A le *ille limit of its iravel against exitensxon 30. As long as bolt 31 is held in i Fon, eritension 13 which for this rorided with sloping shoulfler asneel, in fully opening my gaie, l on Q9, in direction opposite to weight om on being released, sigg; emulsion 29, Cannot return, in e ille pull of *weight 22, because eecenl're 'weight 28, Nigger will zal. once fall beek into a posiich extension 25) points vertically and shuts he'sq'uere shoulder 36 olf exil-mslm] LI-lt preventing it from pzissng. ls .soon lraowever as (by mo ving the elevatorenr up or l '\.fu} com 33 is removed from engaggewenii with roller or projection 32 or 3l he (use may be) bolt 31 is released nml will "oe pushed badi by extension 80, under lie :e of shoulder 36 against f x. 1 en@ n by the pull of. weight', releasing extension lhlanfl with it ,v mr l?! and causing it tmloe :ruhr

n aimer 'iler-'L 'fo-nlnet of cmu 33 emes? meieelly locked lay oel: l-l to earch lli, 11-

l i eielensllj; pulling cables l@ taut across sen ing l0. By adjusting the length and posiM tion of cam it can be readily determined just how far ne elevaorer o which il) is attached shall be allowed to travel above or below the level. of the lower edge of open ing l0, before bolt 3l is released.

l am aware that automatic closing gaies for freight and factory elevators are not new; but all such gates of which l1l Ve knowledge have an up and down motion, and require to be fully or almost fully, opened to admit even a single person, or to give convenient access to the controlling cable. l

lll/1mi I claim and inend to protect by Lelers Patent, sl l. An elevatoegateg consisting of :l ver fgiillmr and horizontal cables attached to said bar, in eombinio with mountings for seid har and cables; a weighs` attached lo :asiel cables, and means limiting the upwarcl travel of said Weight5 for die purpose clese'rbed.

)in elevator gate, consisting of a vertical bar and horizontal cables auehefl to seid har, in combination. will; molmtings for smid bar and cables; a weight atrae-hed to said Cables; and a stop-piu limiting the upward irevel of said Weight; substantially :md for the purpose described..

UHRS'IIAN NELS ENA Y E. L BUCKLIN,

CHARLES A. LAWES.

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