US1299886A - Vertically-sliding door for elevator-shafts. - Google Patents

Description

y B. wExLER. VEBTCALLY SLIDING DOOR FOR ELEVATOR SHAFTS.

APPLICATION FILED DEC. 9, |915.

Patented Apr. 8,1919.l

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B JIVIIN WEXLER, 0F IBRQKLYN, NEW YORK, ASSIGNOR TO THE PEELLE COMPANY, F BROOKLYN, NEW YQRK, A CORPORATION 0F NEW YORK.

VERTICALLY-SLDXNG DOR FOR ELEVATOR-SHFTS.

Specification of Letters Patent.

Patented Apr. 8, i919.

Application ined necesitar e. i915. seriai no. sence.

.To azl whom, t may concern Be it known that l, BENJAMIN Wurm-nn,

a citizen of the United States, and a restl dent of New York city, borough of Brooklyn, in the county of Kings and State of New York, have invented certain new and. useful improvements in Vertically-Slidmg Doors for Elevator-Shafts, of which the following is a speciiication.

rlhis invention relates to improvements in vertically sliding doors for elevator shafts.

'The object of my invention is to provide new and improved sliding doors of this type which are made in sections mounted to slide vertically in parallel planes and which are so arranged as to prevent the passage of tire and smoke at the ends and meetinged es of the doors, by means of simple, dura le and ellicient devices.

ln the accompanying drawings .in which like letters or reference vindicate like parts in all the iigures;

Figure 1 is a vertical transverse sectional view of my improved doors showing my improvement, the doors being closed.

Figa is an enlarged horizontal sectional view on the line aff-m of lifig. 1.

Fig. 3 is an enlarged vertical transverse sectional view of the lower part oi the upper door and the lower door, parts being broken out.

Fig. 4 is a horizontal sectional view through the upper door.

Fig. 5 lis a plan view of the top of the lower door, parts being broken out.

Fig. 6 is a similar view showing a plate riveted `to the upper edge of the lower door.

Fig. 7 is a. sectional view on the line g/-y oi Fig. 6 showing how the suspension chain is connected with the door.

The upper and lower door sections land 2 respectively are mounted to move vertically in parallely vertical pla-nes. The door sections 1 and 2 are suspended from sprocket chains 3 and 4 respectively, which pass over sprocket wheels 5 and 6 respectively, the sprocket wheel 5 being about hall? the diameter of the sprocket wheel 6, and the sprocket wheels being lirmly connected to each other. The sprocket wheels are mounted in a suitable housing and the sprocket chain 4 is connected with a suitable counter-balance weight, and the sprocket chain Spasses over the sprocket wheel 5 without. a counterweight, as fully set forth in my application Serial No. 48,593, so that the door sections when the door is opened or closed, have simultaneous vertical movement in the same direction but upon parallelv planes, the lower door sections moving approximately twice as fast as the upper door sections.

The door opening 7 is usually provided with a lining formed of a channel bar 8, but it may also be formed of masonry. To the ilange 9 ot' the channel bar 8, at the shaft side of the door opening, or to the wall 10 at the shaft side, an angle bar 11 is bolted or riveted by means of one Harige, the other ilange or this angle bar projecting into the shaft and being the main guide on which the doors slide. To the inwardly projecting `flange of the angle guide bar 11, an an le bar 12 is riveted, the free ange 17 of which is embraced by the U-shaped guide clips 13 which are bolted to a vertical angle bar 14 on the Tbar 15 forming the vertical end pieces of the lower door 2. rlhe Hangs 16 of the angle bar 14 laps over the guide clips and thus also laps over the ange 17 of the angle bar 12 and serves to guide the door as it moves up and down.

ln order to prevent lame from passing from the building to the elevator shaft or vice versa, at the side edges of the lower door, when the same is closed, l provide an angle bar 18 which is bolted to that flange 19 of the angle bar l1`v which is attached to the wall 10., or to the inner iiange 9 of the channel bar 8, and the flange 20 of this angle bar projects toward the door and is adjacent to the inner side of a vertical flange 21 of the nlbar 15 forming the side of the frame of the lower door, so that the llange 2O of the angle har 18 overlaps the flange 2l of the T-bar formingthe side ci the door frame,y and this channel 18 extends from the door up to the bottom edge of the upper door, when the saine is in its lowest position, so that the bottom Llloar 22 of the upper door can rest on the upper edge of the flange 2O of the angle bar i8, when the upper door is in its lowest position. The free edge of the `flange of the angle har 18 extends to the web of the il-bar 15 forming the vertical end member of the lower door, as shown in Fig. 2.

in order to permit the lower door to rise, the flange 23 of the bottom lbar 24 ci the lower door, must be notched as shown at 25 ,and this notch must be greater than the Width of the flange 20, so as to allow for expansion in case of fire.

As the doors lap when closed and the upper edge of the lower door extends' up that is to say, part of it must extend up-` ward beyond the lower edge vof the upper door, so as to form a wing' 26, which extends to the underside of the top T-bar 27 of the lower door. The topT-bar 27 of the lower door 2 is provided with a notch 28 at each end of the door, into which a link of the suspending chain 4 for the lower door, is inserted, in the conventional manner and to confine said link in said notch the outer edge of the notch must be closed. llfhis is accomplished by bolting a plate 29 to the top of this T-bar 27 in such a manner that it laps over the edge of the T-bar 27 and extends toward the surface of the upper door l. This -plate or bar 29 has the inner corners cut out, as shown at 30, so -as to form a lug or wing 31 which extends across the notch 28 and confines the chain within said notch and prevents withdrawing it.

In the overlapping part of the plate 29,1 pro-vide a series of slots 82 which extend longitudinally of the plate. To the underside of the bottom T-bar 22 of the upper door, an angle iron 34 is riveted in such manner that its flange 35 extends upward between the doors l and 2. To the said upwardly extending flange, plates 3G are riveted, which terminate at their upper ends in upwardly projecting pins 38. When the doors are closed and both are in their lowermost positions, the pins 38 pass through the slots 32 in the plate 29 and thus lock the doors together at their meeting edges and prevent their being separated laterally. Furthermore the plate 29 acts as a bae plate and prevents flame and smoke from the loft from passing up between the doors into the shaft.

When the doors rise, the lower door moves about twice as fast as the upper door, and when the doors are opened, the plate 29 moves upward faster than the angle iron 34: and thus the pins 88 are disengaged from the slots 32.

As the lower door is moved up and downward, it slides parallel with the flange 20 of the angle iron 18, which is close to the flange 21 of the vertical T-bar 15 of the door frame and overlaps the same and the free edge of the liange 2O of the angle bar 18 is close to the web of the T-bar 15, thus precluding the passage of flame through the door opening, into the elevator shaft as the flange 20 of the angle bar 18 acts as a baille for llame and smoke.

Having described my invention what l ineaeee claim as new and desire to secure by Letters Patent is:

1. rll-he combination with a door comprising an upper and a lower section, both movable vertically'in the same direction but in parallel planes at a door opening', of vertical guides at opposite sides of the door opening, guide members carried by said door sections respectively coperating with said guides, and plates projecting from the wall adjacent each side of said opening, into close proximity to the side frames of said lower section, said plate being o f a height to be engaged by the upper section when the door is closed, whereby when the door is closed, the gaps between the lower section and below the upper section, andthe wall adjacentythe door opening will be substantially closed.

l2. The combination with a door comprising an upper and a lower section, both movable simultaneously inthe same direction but in parallel vertical planes at a door opening, said lower section having an angular, overhanging frame, ofvertical guides at opposite sides of the door opening, guide members carried by said door sections respectively coperating with said guides, andl plates projecting from the wall adjacent each side of said opening within the overhanging frame of the lower door section, said plates being of a height to be engaged by the upper section when thedooi` is closed, said frame being slotted or notched to span the edge of said plate, whereby when the door is closed, the gaps between vthe lower section and below the' upper section, and the wall adjacent the door opening will be substantially closed.

3. The combination with a door comprising an upper and a lower section, both movable vertically in the same direction but in parallel planes at a door opening, of vertical guides at opposite sides of the door opening, guide members carried by said door vsec- 110 tions respectively coperating with said guides, and plates projecting from the wall adjacent each side of said opening, each of said plates being notched `in its upper end to form a .recess adapted to receive the lower 115 edge of the upper door section when the door is closed whereby said doors overlap and the gaps between the lower section and below the upper section, and the wall adjacent the door opening will be substantially 120 closed.

4. The combination with a door comprising an upper and a lower section movable vertically in the same direction but in parallel planes at a door opening, of plates pro- 125 jecting from the wall adjacent each side of said opening within the frame ofthe lower door section and into close proximity to the surface ofthe said section, said frame .being slotted, or notched'to span said plate 130 and being of a height to be engaged by the upper section when the door is closed and a plate projecting from the top frame of the lower section within the frame of the upper section and in close proximity to the surface of said upper section whereby when the door is closed all gaps between the lower section, and the wall adjacent said opening and between the door sections, will be substantially closed.

. 5. The combination with a door compris.` ing an upper and a lower section movable verticallyin the same direction but in parallel planes at a door opening, of plates projecting from thewall adjacent each side of said opening within the frame of the lower door section and into close proximity to the surface of said section, said frame being slotted or notched to span said plate and being of a height to be engaged by the upper section when the door is closed, a plate projecting Ifrom the top frame vof the lower section within the frame of the upper section and in close proximity to the surface of said upper section whereby when the door is closed all gaps between the lower section, and the wall adjacent said opening and between the door sections, will be substantially closed, and means forming an interlock between the door sections when they are closed whereby the formation of a gap between said plate carried by said lower section and the surface of the upper section by strees on either of said sections, is prevented.

6. The combination with a door comprising an upper and a lower section movable vertically in the same direction but in parallel planes at a door opening, of vertical guides at opposite sides of the door opening, guide members carried by said door sections respectively coperating with said uides, a guide member carried by each of said sections and a flange member carried by said door sections respectivelyl adjacent said guide members, the Hange of said member occupying a plane parallel with said guides respectively, the edges of said flange and said guides overlapping each other.

Signed at New York city, borough of Manhattan, in the county of New York and State of New York, this 8th day of December, A. D. 1915,

` BENJAMIN WEXLER. Witnesses:

M. SHAW, E. F. MITCHELL.

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