US929741A - Wicket-door for rolling shutters. - Google Patents

Description

L. G. WILSON.

WIOKBT DOOR FOR ROLLING SHUTTERS.

APPLICATION .FILED JUNE 22, 1908.

929,74 1 Patented Aug. 3, 1909;

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-gated metal, or' ofvmutually inter-locking4 LESTER e.wn.soN,or LAR'cHMoNT, NEW Yorin.

wiener-Doon Fon ROLLING sHU'r'rEns.

Specification of Letters Patent.

Patented ug. 3, 4`1909.

i Application lediJunel22, 1968. Serial No; 439,661.

To'all whom it may concern: V

Beit known that-I", Lnsrnn G. WiL-SON, a citizen of the United States, residing .at Larchmont, county of Viestchester, State of New York, have invented certain new and.

usefullrnprovements in Wicket-Doors -for Rol-ling Shutters, of which the following is a full, clear, and exact description.

My invention refers particularly to that class of shutters made of flexible or corrumetallic slats, especially when used `to protect large door-ways or windows, and has for its object to provide a means by which, without o erating the always comparatively massive s utter proper, free passage through it may be maintained, foizindividuals, when the-shutter is closed. This object :I secure by a 'novel construction and combination of parts which permits a regularly hingeddoor to become a part of the shutter when the.

latterv is closed which door may beequipped with a knob, latch, lock or any other usual fixture. When the shutter proper is to be opened this auxiliary door may be swung com letely babk andlout of the shutter opening eaving the latter free for passage over its entire area and without lobstruction of any kind, l Referring to the drawings Figure 1 is an elevation of thelower left hand corner of a rolling shutter of the class referred to, the shutter being represented as down onclosed and supposed to rise, in opening, `and roll upon a suitable shaft or rol er placed above in a manner well understood in the art. This view shows my improvedwicket door in operative position, the remainder of the shutter being broken awayto save space. F'v. 2 is a section, looking from the right, ta en on the'line 2--2 of Fig. 1. Fig. 3 is'a section, looking from above, taken on the line 3-3 of Fig. 1.

'The'shutter.a shown as ofcorrugated maf terial, moves 'up and down inv runways, b; a

bottom bar, c, bounding the lower edge or' ther shutter, affords a finish to this edge and fits the shutter closely to the floor.

From lthe body ofthe shutter just above thev bottom bar, c, and to the right oi the left-hand runway, b, is cut a `rectangular piece` ofv dimensions just great enough to permit the insertion of a doorfranie, d; lthis frame may be of angle iron and attached to the side of the shutter opening and runway by hinges, e, e. When in use, as in to the outside of the door frame at top and bottom by pivot pins, y. These clamp bars Yiigures', this frame -is held in place' in the I curtain by-two short clamp bars,f,f, hinged 4 when thrown outward suflicientiy (counter .v

clock-wise referring Ato Fig. 3) clear the curtain and allow the l'rarne, d, to swing freely in.

With

and out of its opening'in the curtain. the irame 1n place and these bars thrown ,inward (clock-wise referring to Fig. 3) they will hold the frame 'firmly against the curtain andare themselves prevented from 'turning back and releasing the 'frame bythe springr click, lz., attached to the inside ofiilie shutter.

These clicks, as l have called them, are of l spring metal, such as steel, brass, phosphor-` bronze, e. g/,cut in rectangular leal" forni and attached at one end by screws 111.1 to the i'rame d. At the tree end of each click is a. lug or det-ent h2 fixed to the spring and normally pressed inward by the resiliency oi' the click and ythrough the 'frame d, a suitable slot 71:"

having been cut in the 'frame 'for this purpose.

One side ol' each vlug t" isbeveled as at It* so that as the clamp barf swings around to the positionshown in Fig. 3 the lug will be -forced out against the resiliency of the spring to fall back when the clamp bar has passed thereby holding thefclampV bar in locked position and preventing the frame from being'swun'gaway from the curtain. Many `mechanical equivalents of this clickwill readilyl suggest themi, i, is a door j; this may be of the same material as the shutter and, indeed, mayr be from ythe verypiece which has been cut\'from it to make room for the door; or it may be of any other material of similar or dilferent form. It ought, of course,vt 0 be fire-proof selves and I do not confine-myself, therefore, -to `the exact.A form described. l,lorking in 'this door frame and attached `to it by hinges when the shutter is ii'r'efproof and if of the same material and 'form of material as the shutteritself will present a lbetter'appearance as .in such casethe lines produced by corrugated or slat construction will extendl from one sideof the shutter to the other withno interruption other than thatv due frame and mounting of thefdoor. As previously vstated' this door may b equi ped with any preferred style of loc latci or the shutter it may be used exactly as any ordinary door 1n anyusual location.

to the f i .other iixture; Vwhen its frame is in place in l VVhelrthe shutter is to be raised the de or i the l frame, d, carrying the'door, y, closed upon 1t,

is released from the shutter by drawing back the spring clicks, h, and throwing the clamp bars, Af, outwardly after which 1t is swung back'upon its hinges through `180" until it rests against the wall, fr, to which it may be l 'held by any suitable fastening. vThe shutter may now be raised to any desired extent by use ol any of the various lmechanisms known to the art. l

My invention is simple, not easily de' ranged, presents a good appearance, is leconomical in construction, and effective. While intended specially for use with a rolling shutter it is not necessarily restricted thereto but may be as readily ada ted toa sliding or swinging- Shutter. "W ien" used with afrollingshutt'er the latter may roll from above/as in the construction described, or. from below; or the curtain might roll from the one side or the other. Also While in practice shutters large enough to make a subsidi ary door desirable are generally of metal and fire proof, other materials, some of them not iire proof, may, in certain cases, be used to' advantage; with all of these constructions my invention may beusefully employed.

. Having thus described my 'invention and indicated its scope, I claim:

1. In a shutter,- a door Vframe inovably attached to.` points independent of said shutter, said frame being' adapted to cooperate with an opening in said shutter; bars p ivoted '40 ulpon and ada ted to cla-mp said frame to t e edges of sai( shutter` opening; and means `for retaining said bars `1n their clamping' position. i

atte; has

3. In a'rollingrmetallic shutter, the door L45 frame d hinged to points independent of saidf shutter, said frame beingv ada ted to co crate with an lopening in. sai shutter; t e

door j hinged tosaid frame;- the clam)- bars pivoted upon said frame and adapte" to anchor it to said shutter; and the s ring clicks,

. 71 attached to"said frame and a apted toretain said clamp bars in `their clamping position, substantially as and for the purpose def scribed.

In testimony whereof I have hereunto set my hand in vthe presenceV of two subscribing` Witnesses.

. LESTER G. WILSON. Witnesses: 'i y ELMER SHIRLYOUNG, JOHN A KEHLENBECK-

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