US1571561A

US1571561A - Furnace-roof structure

Info

Publication number: US1571561A
Application number: US631650A
Authority: US
Inventors: Stevens Mary Ann
Original assignee: Individual
Current assignee: Individual
Priority date: 1923-04-12
Filing date: 1923-04-12
Publication date: 1926-02-02
Anticipated expiration: 1943-02-02

Description

Feb. V1? 1926.

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' Mmm 1,571,561 E. P. STEVENS FURNACE ROOF STRUCTURE' led April 12, 1923 2 Sheets-Sheet 1 Njw gb,

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y E. P. STEVENS FURNACE, ROOF STRUCTURE Filed April 12, 1923 2 Sheets-Sheet 2 'types of furnaces.

Patented Fiel).- 2, 1926.

ENOCE I. STEVENS, 0F CHICAGO, ILLINOIS.; MARY ANN' STEVENSEXECUTRIX 0I' SAID ENOCEI P. STEVENS, DECEASED.`

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Applicationl led Apiil 12, 1923. Serial No. 631,650.

To all whom it may concern:

Beit known that I, ENooH P. STEVENS, a citizen of the 'United States, residing at Morgan Park, Chicago, in the county of Cook and Stateof Illinois, have invented certain. new and useful Improvements in Furnace-Roof Structures, of which the following is a specification. 1

This invention relatesto roof or top wall constructionsfor furnaces and is primarily useful for the roofs of malleable and similar `One of the primary objects of my.inven. tion is to provide a very simple construction so arranged that no substantial thrust or pull is imparted on the sidewalls when expansion or contraction Lof the roof occurs. Still another object of the invention is the elimination of the heavybuck stay ysupporting `structure Lfor the furnace side walls eretofore found necessary where the side walls take the thrust of the roof.

More particularly my invention is intended to provide a roof construction composed of units or bungs, each including a support-` ing means adapted to be carried on the side walls and imposing no substantial thrust thereon in expansion or contraction, if any,`,

' and a row ofbricks carried by each sup` porting member with freedom for expansion and contraction without imposing stress on the sidewalls. The foregoing, together with such othe objects as may heremafter appear, or are incident to my invention, I obtain by means of a construction which I have illustrated in preferred form in the accompanyingf drawings, wherein: v)

Fig. 1 is a fragmentary longitudinal section through a malleable furnace illustratingv theA application Vof my improvements thereto. Fig. 2 is a section taken on the line 22 of 3; Fig. 3 is a section taken'on the line 3 3 of Fig. 1, on an enlarged scale;v Fig. 4 is a fragmentary planv view of Fig. 3, on a still further enlarged-scale; and Fig.

5 isa perspective illustrating a detail of the invention., p k

Referring now,4 lto Fig. 1, the malleable furnace A has the usual side walls 7 which carry the roof, indicated as a whole by thev reference letter B. A

This roof is comprised of units orbungs I). Each `of the bungs consists of a sup# porting member comprising reversely `dis-- posed channels 8, secured together in spaced relation by means of the bolts 9. and the sleeves 10V and provided at the ends with foot members 11 adapted to reston top of the side wall 7, as will be seen on inspection of Fig. 3; thev reinforcing angles 12 secured to the webs of the channels; the row of bricks 13, provided with T-shaped heads 14, the spacing of the channels bein such that the bricks may be slipped or t readed in with their heads resting upon the lower flanges 15 ofthe channels, as will be clear on inspection" of Fig. 2; and means for yieldingly pressing thef bricks together longitudinally of the row, such means consisting of the pads 16, the pivoted levers 17, the rods 18, and the springs 19, one end of each of which bears on a lever' or arm 17, the amount ofv compression being determined by means of the nuts 20.

The channels 8 are arranged in arched form and. support the bricks in an arch, the radius of which is comparatively small, the row of bricks being free to expand and contract while at the same time the load is transmitted to the'side. walls in such. way that there is no `outward thrustto speak of on expansion of the channels.

It will also be .observed that the ends 'of the row of bricks come above the side 'walls which makes it possible toprovide a sand or similar seal 21 to protect the metal parts from the` direct heat.

The bungs are lifted by the eyes 22 land the chargingf bungs are tied in pairs by plates'23.

-Tofacilitate the threading f the bricks,- the lower vflanges of the channels are slotted out at intervals, as at 15', the slits being slightly longer than the thickness of the bricks.l This arrangement also facilitates breaking out of all of the bricks; or of one or more of the bricks which may wea-r out more rapidly, without disturbing all of the remaining bricks.

What I' claim is: .1. In a furnace having side walls, aroof structure comprising a plurality of removable bungs each including a supporting member adapted to be carried on the side walls, and a row of bricks carried by' the supporting member with freedoml of expansion and contraction. l g

l2; In a furnace having side walls,ga roof structure ,comprising a plurality of removable bungs each inclu able bangs each including an arched supporting member adapted to be carried on the side walls, and a row of b ricks arranged in an are and carried by the supporting mem.

' headed bricks and supportingmeans therefor including a pairof reversely dis osed structural members each having a lihnge Vadapted to engage the heads, means for se- Lcuring the structural members together and means for yieldingly pressing the bricks together.

5. In a furnace roof structure, a row of headed bricks and` supporting means therefor including a pair of reversely dis-- posed structural members each having a flange adapted to engage the headsmeans Afor securing the structural members together in spaced relation, and means for yieldingly pressing the bricks together.

6. In a. furnace roof-structure, a row of headed bricks and supporting means therefor includin a pair of reversely disposed channel mem rs, the lower flanges of which engage the heads, means for securingy the channels together, and means for yieldingly pressing the bricks together.

7. In a furnace roof structure, a row of headed bricks and supporting means therefor includi a pair of reversely disposed channel mem ers, the lower flan es of which engage the heads, and means or securing the channels together, together with angles reinforcing the channels.' l

8. In a furnace roof structure. a row of headed bricks and supporting means therefor including a pair of reversely disposed channel members, the lower flanges of which engaofe the heads, and means for securing the c annels together, said lower flanges being shaped to permitthreading of bricks intei-mediate the endsof the channels.

- v9. In a furnace structure, a row of headedv bricks and supporting means therefor including structural work with opposing flanges adapted to engage the brick headsand arranged to permit threadin of the bricks thereinto at a point interme iate the 'ends of the row.

10. A furnace roof bung comprising in combination a supporting member, a plurality of bricks carried thereby with freedomy for expansion, and means for yieldingly pressing the bricks together during expansion and contraction.

In testimony whereof, I have hereunto signed my name.

ENooH r. STEVENS.