US1126080A - Closure for furnaces. - Google Patents

Description

'GUIG-LEY.

APPLIOA'IIQH FILED 5133.22, 1914.

Pamnteai Jan. 26, 1915 ZSHEETS-SEEET 1.

WITNESSES:

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' F 33 'FUEZIAGES,

Application filed January 22, 191%.

' for a furnace and has for its object the provision of means whereby the furnace may be eliectuully sealed with respect to the outside atmosphere, the said means being of such a character that they will not be unduly effect ed by the heat of the furnace, and to 8mbody such means in a simple 'and convenient construction. w J

In carrylng out the above obJects 1 provide a vertically sliding, door or closure,

whose lower end dips into a body of sand or the like, when in its closed position, suitable means being provided for confining said body of sand. In order to make the door tight against the body of the furnace, the guiding il'lQflHSfOf the door or closure will preferably include an abutment engaging with the face of thedoor, and means will I preferably be provided for clamping said door against said abutment.

The door itself comprises inner and outer members of sheet materiel, such as iron or steel, between which is interposed suitable heat non-conduct1ng material, such as asbestos,'m1nerel wool or the like. Preferably the non-conducting material will be divided I into two layers separated by an air space, and suitable means for securing the parts together are employed.

rial relatively thicker than the inner anemher that the said inner member will not have suilicient power to warp or twist the door when subjected to heat.

The inner and outer members are preferably spaced apart by means of channel members which extend along the side and upper conducting material may be employed ot ire Epceificstion of Letters Patent.

1- have found that by making the outer member oi sheet mate 4.0

" clamping means.

Similar characters of reierence indicate seminseisycc.

V tervels throughout the .entire length and o eadth or" the door, and the means for sccuring the parts together may conveniently through such spacing and confining means. are provided, in the present instance taking the form of channel irons so disposed that the channels extend sway from the door and form vertical recesses outside the same. The means for elevating the door may take any suitable form butpreferebly e flexible connection extends down through the vertical recesses in the side edgesof the door and secured thereto, the other end of said flexible connection passing over a suiteble pulley and extending down into the "vertical recesses outside the doorformed by the channel guide members, a suitable weight being attached to the flexible connection which ex: tends downthrough the said outside chs nne'l guide members. The means for clamping the door against the face oi the furnace body may consist of eccentrics or cams or the like, which are conveniently mounted on the side guide channels. These cams or eccentrics form a clamping means when in their locked position, and a part of the confining or guiding. means for the closure when in their unlocked position.

The invention is embodied in the accorn-- penying drawings in a concrete and preferred form, but changes of construction .may bemade without departing from the scope of the claims.

In the said drawings: Figure 1 is a front elevation of one side of the closure showing it in its partly raised position. Fig. 2 is a vertical. sectional view on the line 2-2 of Fig.1. Fig. 3 is a horizontal sectio nal view on the line 33 of Fig. 1. ,Fig. 4 is a secionel view of the lower end of the door and the means for confining the body "of sand'on a. large scale. Fig. 5 is e detail view of the the sand confining means 3, conveniently in the shepe of e trough, and containih a body of sand i. Extending fromthe i urncee COIlSiZKUlCtlOIl are further the two chair nel members 5 forming side guides-fertile deer end heving their channel 1 ex nding Suitable. side guides for the door '40 through said sanding and confining means,

fiiiereinafter described.

The door itself comprises inner and outer members of sheet material respectively marked Sand 9. The outer member 9 is of a greater thickness than the inner member 8 so that the inner member when aifected by heat will not-be sufiiciently powerful to twist or warp the door as a whole. These inner and Outer members are spaced apart by the upper and lower channel members 10 and 11, the said lower channel member conveniently forming a double ended extension which buries itself in-the sand 4 when the door is closed. The said inner and outer members are further spaced 9. art by means of the channel members 12 an 13 which extend vertically adjacent to the side edges of the door and form channels or recesses within the door. as shown' more particularly in Fig. 3. Interposed between the inner and outer members of the door is a body I of non-conducting material, such as asbes-' tos or mineral wool. In the present instance this body is shown as being divided into,

twb layers 14 and 15, separated by an air, space 16, and this body of non-conducting material may extend throughout the entire 1 width and breadth of thedoor. Additional; spacing and confining means for this matei rial are found in the sleeves or tubular} members 17 and washers 18, which serve to space the inn r and outer members and the several lay'erq of non-conducting material and to keep he latter in proper position within the (1061-. li'fiesired, Suitable fastening means lil e the bolts 19, may pass whereby the pfi comprising the door are secured together.

Mounted on suitable brackets 20 on the side guide channels 5 are the rotatablemem hers 21 carrying the cams or eccentrics 22 and having connected thereto short arms 23 which are pivotally attached to a vertically extending connecting rod 24, which connect- 'ing rod may conveniently be operated by means of the handle 25 so that several of said clamping means may be operated U1 unison. It will be observed that by moving the rod 24 upward, the clamping member 7 may be disengaged from the front face of the door when the door may be elevated; The said clamping members, however, per form the very important additional function of serving as guides for the door, as will be readily apparent.

The door may be elevated by. any suitable means but in the presbnt instance I employ a rotatable member or pulley .26 which is mounted on a stationary portion of the furnace and over which passes a flexible connection 27 down into. the recesses formed by the channel members 12 and 13, the other end of said flexible connection having a Weight 28 attached thereto and asses down through the channels formed .y the side guide channel members 5. The pulley 26 may be operated by means of a Wheel 29 and a belt 30. In addition, another pulley 31 may be mounted to rotate with the member 29, and by means of a chain 32 may communicate motion to the other side of the furnace door, where a pulley similar to 26 and a flexible connection similar to 27, may be employed so as to lift both sides of the door in unison. l

What is claimed, is:

1. A closure for a furnace comprising inner and outer members of sheet material, the outer member being of greater thickness than the inner member, non conducting ma- 9-5 terial interposed, between the inner and outer members, and means for securing the parts together.

2. A closure for a furnace comprisinp inner and outer members of sheet materia the outer member being of greater thickness than the inner member, two layers of'nonconducting material separated by an air space interposed between the inner and outer members, and means for securing the parts together. r

3. A closure for a furnace comprisi inner and outer members of sheet materia spacing members separating said inner and outer members, a body of non-conductin material interposed between said inner an outer members, and means for securing the parts together.

4. A closure for a furnace comprising inner and outer members of sheet material, 1.05 spacing members located adjacent to the edges of said inner and outer members, -a body otnoirconducting material interposed between said inner and. outer members, and 4 means for securing the-parts together. T10

5. A closure for a furnace comprising .inner and outer members of sheet material, spacing members located adjacent to the edges of said inner and outer members, a body of noirconducting material interposed between said inner and outer members, spacing and confining members between the inner and outer members and extending through the non-conducting material, and

means for securing the inner and outer members together.

6. A closure for a furnace comprising inner and outer members of sheet material, channel members extending vertically be tween said inner and outer men'ibers adjacent to the side edges thereof, said channel 'memiiers forniinga recess in the side edgesof the closure, means for securing the parts together, channel members forming side guides fo the closure and forming a recess .130

1,1ee,oso

sure over which said flexible connection passes, and a weight connected to the other end of the said flexible connection and pass ing down through the recesses outside the closure. 1

7. A closure for furnaces comprising inner and outer membersof sheet material, vertical and horizontal channel members disposed between said inner and outer members at their edges forming a recess in the side edges of the closure, spaced sheetsof non-heat conducting material interposed between said members, means extending transv'ersely through said inner and outer members for securing said parts together and holding said non-heat conducting material in spaced relation. 8. The combination with a furnace having an opening therein, of a vertically slidable closure for said opening, vertically disposed guide members arranged at opposite sides of the closure to guide the same in its vertical movement, 'abutments provided on,

the edges of the opening of the furnace to form back guide members for the closure, means for raising and lowering said closure,

and means on the vertical guides for locking the closure in opened and closed position andpto provide front .closure when unlocke guide members for the 9. A closure for furnaces comprising inner and outer members of sheet material, non-heat conducting material interposed between said members, channel members extending vertically and horizontally between said inner and outer members adjacent their side edges ofthe closure, means for securing said parts together, a body of sand in line with the lower end of the closure and into which the lower horizontal channel member will extend when the closure is in closed position, a roller disposed adjacent the closure, a flexible member extending over the roller and having one end, weighted and the other end extended down the recess in the vertical channel. members and secured to the lower end of the closure, means to actuate the roller, and means to lock the closure in closed or open position.

10. A closure for furnaces comprising inner and outer members of sheet material, vertical and horizontal channelv members disposed between said inner -and outer members at their edges and forming recesses in the sideedg'e's of the closure, spaced sheets of non-heat conducting material. disposed between said inner and outer members, means extending transversely through said inner and outer members for securing said parts together and holding said non-heat conducting sheet in spaced relation, guide members for the closure, means secured to the closure and extending through the recesses of said vertical channel members for raising and lowering the closure, and means secured to the guide members to engage with the outer member of the closure to cause the inner member thereof to engage with the wall of the furnace whereby the closure may tightly seal the opening of the furnace and be supported in open or closed position.

11. A closure for furnaces comprising inner and outer members of sheet material, members disposed between said inner and outer members for holding the same in spaced and parallel relation, means connecting the inner and=outer members for holding said parts together, guide members disposed adjacent the vertical sides of said closure, a pulley mounted upon the upper end of each of said guide members, a flexible member connected to the lower end of the closure and extended over said pulley for raising and lowering said closure, rotatable means mounted on the guide members and adapted to engage the outer member of the closure when said means are rotated so that the closure will frictionally engage the outer wall of the furnace.

' 12. A closure for'furnaces comprising in ner and outer members of sheet material, means disposed between said members to hold the same in spaced relation, means for securing said parts together, guide members vertically disposed adjacent the opposite sides of the closure, means for raising and lowering the closure, a plurality of rote table members journaled on each of said guide members, roller members eccentrically secured to. the inner end of said rotatable members and adapted to engage the outer member of the closure so as to force the closure into frictional engagement with the wall of the furnace, a lever rigid with one of the rotatable members on each of said guide members, and a rod connecting the remainder of the rotatable members of each respective guide with said lever thereof so that the rotatable members may be operated in unison. 1

Signed at New York city in the county of New York and-State of New York this 20th day of January A. D. 1914.

WIRT S, QUIGLEY. Witnesses:

AxnL V. BEEKEN, EDWARD H. Yoons.

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