US1175085A - Elevator-door. - Google Patents

Description

` l Ritt/HannlJRoss, a ited` Statesfot" "America, igorA countyof` Cook, Anted certain in Elexiitorg' fire proof` ele'- ed for freight losure .tor each n tivo parts `which ifted iii` respectively di rections` when being` h `ir operationy easy.

this invention are to struction of the rib door sections and eed away from the i and Utojl yielding d u ieir` `sidewisel shi.

pings` lien they are `eiitaasaii case. of frire. e ibodune.;itaoi` `this invenieing taken.; from `the .sainei Fig. `onal` y.View ofthe enlarged sectional de- ED STATESPT or onionsoimmois, `iissisnon To GUARANTY IRON & WIR-E oo., miren;` ILLinois, e CORPORATION oF ILLINOIS. f

lotviiig -lis a spec-ith "t tito seotioiisfbeing con# t 1 and ut'ably` counterbiil-i igated panels to i 'or `retainiiig .the

`ely `:tol fthe; plane l re in, either,`

o irs so as to `pre- Y ireleration of an ele- 1 '1g the"4 foregoing iniloo the section being o Fig.` 1. Fig. 5 is door nLEVATon-noon.

Patented Mai-.'14, i916.

manga niet Mrcii 23', 191e seriai No. 826,703.y

. i' A caseof fire.` Fig; S 'isa View of the, same taken on the line (Il-EC of Fig. 7.

In the construction shown in the vdrawthe walls or supports 3 bounding the opening or passageway l, for which they are adapted to Storni a. closure.

the `lower corncrspot' the upper dooi` seetio'ii 1 andA traveling .over pulleys 'l'` and at-` tached to rods S which are-'connected to 'fittings 9 secured .to the upper corners of the lower door section 2. This suspension ot the door sections'pern'iits them to be `shifted in relativelyY opposite Ajertical direcings, the door sections 1 and are sliiftahly `mounted on suitable guideways secured to tions `whenbeing moved to their yopen and closed positions with respect to the opening 4, and `by reason of thel fact that they are connected `.together tlieiroperation,1s rendered easy.,

Each of the door sections comprises a recl titngular traine foi-'ined of angle `hars se' cured `together at their ends and@ having braces 10extending across the r'ani'es` at points between the sides. between which and the sides `o't the ranies the corrugated panels 11 are located.l The braces or 'ribs 10 are "herein shown to be loriiiedf of sheet `85 nietal bent to a: `V shaped cross section` with `edge fianges resting on and attached at their cndsto the inside of the frame anode i Eb bars. 'Thecoigi'uga'ted panels 11 are riveted to the. door iframes along their edges and are. secured to the braces 10 by havingr `their edges bent over as at 1Q, and interloeked` with the bent over portion 13 of thetlangesof the braces 10` and secured together by having the. lient over parts 12 and 13 firmly forced together. as shown inr Fig. 4.

Guidewaysll are formed at opposite sides of the door by means ot angle hars 15 and 16 `secured together and siipportedon the wall or supports 3 at the sides ofthe openf ing d, with the fianges 17 ot' the angle barsl 15 spaced away from the wall and extending inwardly toward tlierdoor. Angle bars 18 are seeured vto the sides of the door sections 1 and `Q and have the flanges 19 thereof ex; tendinginto theguideways 14 (Figsr and 8'). The edgesgot the flanges 17 andl 19` overlap a short distance so that their edges are spaced away aconsiderable distance i'e.-

spectivelyi'troin the sides of the doorsectins to vthe other.

1 and: 2, and the angle bars 16. AThe Yoverlapping oi'' the flanges 17 and 19 provides a :tortuous path for ilames'to follow in attempting to pass from one side of the door The space betweerrthe angesand the sides of the door sections and the I angle bars is provided so'as to allow for 'au considerable sidewise expansion of the door. sections when' they are subjected to intense heat, as in the case .of fire, and thereby .reduce the possibility of buckling or warpe ing as would be the case were providedfor.

'A tion of the door,

. yieldingly resist the isidewise expansion of if no expansion In order, to prevent sidewise shifting of the door sections during their normalv opera tion, resilient members 20 are secured tov the sides ofthe door sections and have bowed parts 21 arranged in close proximity to the edges ofthel flanges ,17.` These members allow for suliicient play to permit easy operaand in case of fire will the door' 'sectionsup to the point of the owed parts being flattened out against the sidesof the door. Thusvwhen' the door becomes cooled and contracts,v the member v2() 'Will` assume its normal position, and the door Will'not have been materially injured.

In order to further aid in the preventing of the door sections from becoming forced away from' the Walls 3, or in oase the expanl" I sion should exceed vthat allowed for by the *members 20, T-shaped l' are secured to the walls 3 above and below Lthe opening 4 andA arranged to have the members :22 and -23 transverse parts thereof extend into the angle of the/brace members 10.' The trans- .I verse parts of the 'li-shaped members pro- `vide oppositely disposed shoulders 24.- and 25 .when the door'sections are which are adapted to engage the flanges of and bottom door frame angle bars, in either their open or closed positions. The shoulders 24 the top -ii the members 23 also assist in securing the door section 2 from being-forced away from the yadjacent wall 3 when the doors are A the other at the point of their abutting faces,

andnin case of fire would necessitate theA flames following a tortuous path.v

' Although but one specific embodiment of this invention 4has been herein shown and These depending' ianges 28 and 29 prevent ydirect communication from one side of the door sections todescribed, it will be understood that numeri ous details of. the construction shown may be altered or omitted without departlng from the spirit of this invention as defined by the following claim.

I. claim: yThe combination with suitable upright supports adjacent to an opening, of a ,door

slidably mounted on lsaid supports, said door being shiftable downwardly to its full open position with the top thereof substantially even with and comprising an exten sion of the ioor forming the bottom of said opening, coacting means on said supports .and door shaped to enter into interlocking engagement when said door is shifted'to said full open position for rigidly supporting the top of said door 4substantially flush with said.

Hoor.

RICHARD J. Ross.y

-Witnesses:

EDWIN PHELPS, WM. E. HANN.

soA

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