US893047A - Fire-door-releasing device. - Google Patents

Description

No.893 ,047. PATENTEDJULY14,19O8.I

J. ,VvWISE,

I FIRE DOOR RBLEASING DEVICE. APPLICATION FILED u'u,12.19oa.

2 SHEETS-SHEET 1.

UNITED "P TENT nsssn viwnammfiim, umaissmm TO THE momansinimimcruame COMPANY, OF AURORA, ILLINOIS. I

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Specification of Lettermlntent.

' Patented July 14, 1908,

. Application filed Harch'12, 1906. Seria1'No.805,4j78.

To all whom it may concemi; Be it known that. I, JEssE V. WISE, a citizen of the United- States, residing at Oak nois, have invented certain new and useful Improvements in Fire-Door-Releasing De vices, of which the following is avspecification. I

This invention relates to improvements in means for automatically-releasing and closing doors of the class known as fire-doors a The especial'object of the im rovements which form the subject-matter 0 this appli-j cation is to provide means that can be readily applied to slidable fire doors of the usual construction and arran ement, and that will automaticall and simu taneously release the doorson bot sides of the door way or 0 ening when fire is present on either side 0 the Wall in which such opening is provided.

A further object is to provide means that will facilitate the ordinary opening and closing of the doors, and in which all the parts are exposed and are of simple mechanical construction.

In the accompanying drawing which forms a part of this application I have illustrated a preferred adaptation of my invention in the ollowing views:Fi ure 1 shows in elevation, a portion of a fire-wall upon which is erected a fire-door of ordinary construction to which is applied my invention. detail on an enlarged scale of a part of my invention. Fig. 3 is a cross section taken through the wall 3 of Fig. 1 at a point just above the wires 20 Referring to the details of the drawing, 3 represents a brick fire-wall in which a doorway or arch 4 has been provided. Projecting from the top of the wall are joists 5, and secured to the face of the wall are an inclined door-hanger track 6, door sto s 7 and stayro1ler.8, all ofwhich are of wel known construction and arrangement.

Slidably mounted on the track by hangers 9 and adapted to move by gravity to a closed osition is a fire-door 10 of sheet 'metal, roln one-edge of which projects an arm 11.

Secured at the up er or left hand (as shown) end of the trac by a set-bolt 12, is an Park, in the county of Cook and State of Illi'-- or wires 19 and 20.

Fig. 2isairon plate 13, in the center of which is astudbolt 14 which projects outwardly at ri ht angles from the ,p'ate. On the studolt is mounted a grooved ulley 15, and/between the pulley-and the bolt-head is placed an iron strap 16',the.' edges of which are slightly grooved'at two points toreceive loops'17 and 18 formedrespectivel on the ends of ropes he rope 19 passes under a pulley 21 secured to a weight 22 then passes over the pulley 15 and has its other end fastened to one member of the fusible link 23, the other member of which is eonnected by a short rope to the outerend of the arm 11. The weight 22 holds the door open against gravity.

The rope 20 passes over a pulley 26 sus- I pended from one of the joists 5, and has its end secured to one member of the fusible link 24, the other member of which is secured to a rope 20 which passes over the swivel-pulley 27 which is sus endedfrom another joist 5. The ro e 20 a ter leaving the pulley passes throug a hole 25 formed through the wall 3, and it is connected with another swivel pulley (not shown) on the opposite side of the wall where the construction and arrangement of all parts described are duplicated.

The object in placing the fusible link 23 near the edge of the door is to subject it to heat that would be likely, because of the draft, to ass through the doorway in case of fire on eit er side of the wall 3. It will be apparent that when the link 23 fuses, the rope 19, will be. relieved of the downward tension exerted by the weight 22 hence the weight will fall to the floor whereupon the outer end of the strap will be pulled u wardly by the rope 20 until the loop slides 0111' the end of the strap, thus entirely releasings'aid' rope and ermitting the same action by the parts 'on't 1e opposite side of the wall.

If the link 24 should fuse first instead of 22 and thus release rope 20, the outer end of the strap 16 will be pulled downward by the weight 22 thus permitting the loop 17 to slide from the strap, and push off loop 18, thereby release door 10 and the correspondingly arranged and connected door on the opposite side of the wall. 7

It will be understood that the closing of the door by sliding on the track 6 may be through gravity or through mechanical- I with this" requirement: 1,",I therefore do not shown but wish to be .1. In combination with a'wall having an opening therein and slidable closures arranged onopposite sides of said wall, means for holding-each of said doors inits open position, said'means comprising a rope connected with the door, and with a pivoted bar, and carryinga tension device and a fusible link, said tension device and link being arranged on the 'side of the wall to which said closure is applied, and meane connectingthe pivoted bar of one doorwith the pivoted bar of the other door, said means comprising fusible links on opposite sides of said wall.

2. In combination with a wall having an opening therein and slidable doors arranged on opposite sides of said Well, means for holding each ofsaid doors in its open position, said means comprising a rope connected with the door and removably connected with a pivoted bar, said rope carrying a weight, and a fusible arranged near the forward edge of the closure, and a second rope rev movably connected with the bars on opposite sides of said wall, and com rising fusible links arranged on opposite sides of the Wall.

3. In combination, a hanger track, a slidable closure, a rope'secured at one end to said closure and carryin a slidable weight and a fusible link, a pulley secured to said track and carrying said rope, and means holding said rope against the tension of said weight and door, said means com risin a lever mounted on the spindle of sai pul ey,

' and a rope connected with said lever and held under tension.

4. In combination, a hanger track, a closure slidably mounted on said track, means for holding said door inits open position said means comprising a pulley connected with said track, a-rope including a fusible link,

prlsing secured at one end to the door, arranged on said pulley,carrying a weight and having a loop at its free end, a pivotally mounted bar having its free end loosely engaged by said loop, and means for holding said bar in engagement with said loop, said means coma rope engagingsaid bar, and having a fusible linktherein and held under tension.

This invention is designed to meet the re limited to the exact construction,

' r r means for holding said rope under tension I 5. In combination with a wall having an oplening therethrough, a closure arranged w en released to automatically cover said opening, holding means for said closure, comprising a fixed pulley, am e arranged on said pulley and secured to sai door and carrying a weight, a fusible link connected with said rope, and with the closure, a ivoted bar detachably connected with sai rope and ad nlpted to be depressed by said weight, a second rope connected with said bar, a fusible element connected'with said rope, and

counter to the tension on the first named rope.

released to automatically cover' sai opening, holdin bar detachably connected with each end of said rope, and two weight-carryin ropes including fusible elements, each etachably connected to one of said bars, and secured to one of said closu'res. V

7. In combination, a-hanger-track, a closure slidably supported on said track, a fusible device connected with said closure, a rope connected with said fusible device, tension means connected with said ro e, a pulley carrying said rope, a pivoted air dlrectly connected with said rope and pulley, a second rope directly comiected with said bar and adapted to normally hold it against, the tension means-of the first named ro e, and a fusible device connected with sai second ro e.

In door. holding and releasing means, a pivoted bar, flexible and fusible means detachably connecting said bar andthe door, a tension device carried by said means, and flexible means directly and detachably con nected with said bar and adapted to normally hold it against said tension device.

9. In a door holdin and releasing means, a pivoted bar, a rope ectly connected with sa1d bar, a weight carried b said rope, a fusible connection between sald rope and-the in presence of two witnesses;

' JESSE V. WISE.

Witnesses:

WM. B. MOORE, F. BENJAMIN.

means for said closurescomprising a rope s dably extending through said wall and having arranged therein a fusiblalink at a point on each side of said wall, a pivoted 6. In combination with a wall having an door, a second rope directly connected with

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