US1341928A

US1341928A - Rail-block for furnaces

Info

Publication number: US1341928A
Application number: US289986A
Authority: US
Inventors: George J Rennie
Original assignee: Individual
Current assignee: Individual
Priority date: 1919-04-14
Filing date: 1919-04-14
Publication date: 1920-06-01
Anticipated expiration: 1937-06-01

Description

G. J. RENNIE;

RAIL BLOCK FOR FURNAC APPLICATION FILED APR. 14, 1919. 1,341,928! i z b in; Mp W V I i \w x FFHQE.

GEORGE J. IRENNIE, or BUrrALo, new YORK.

Specification of Letters Patent.

RAIL-BLOCK FOR FURNACES.

Patent-ed June 1, 1920.

Application filed April 14, 1919. Serial no 'esaese.

To all whom it may concern Be it known that I, Gnomes J. RENNIE, a citizen of the United States of America, residing in the city of Buffalo, county of Erie, and State of New York, have invented new and useful Improvements in Rail- Blocks for Furnaces, of which the following is a full, clear, and exact description.

It is well known, that in re-heating furnaces, it has been found necessary to provide water-cooled supports for the tracks or rails of the furnace, which are interposed between the tracks and masonry of the furnace. These supports have heretofore been constructed in one piece and built into the side walls of the furnace. By this construction, the entire support must be replaced when any portion of it has been burned out, and replacement, in this form of support, necessitates the tearing out of portions of the side walls of the furnace.

Furthermore, when a single-piece support is used, the large exposed surfaces of the support act as cooling surfaces to the heat of the furnace, and the heating effect of the furnace is thereby greatly reduced. This makes it necessary to supply an increased number of heat units in order to bring the furnace up to the required temperature.

The general object of my invention has been to provide a water-cooled support made in email, separate units or rail blocks, which 7 can be replaced individually without the ne cessity of tearing out the walls of the furnace.

Another object has been to provide a sirl individual rail block which shall alall the heat units of the furnace to be conserved, and, at the sametime, provide sufiicient cooling surface to amply protect the masonry of the furnace.

Anotherobject has been to provide rail blocks which shall be used in pairs, the blocks of each pair being arranged opposite each other, with suitable piping connecting the rail blocks together and to the outside surface of the side Walls of the furnace. Thus spreading of the tracks or rails is effectively prevented in a simple and efficient manner. 4 The above objects and advantages have been accomplished by the device shownin the accompanying drawings, of which:

Figure 1 is a fragmentary, side elevation of a reheating furnace, showing my rail support in use.

Fig. 2 is a transverse, sectional elevation of the same.

Fig. 3 is an enlarged, perspective view of one of my rail blocks.

In the drawings, 5 represents the furnace having a top 6, a bottom 7 and side walls 8. 9 are masonry abutments, which rest upon the floor 7 of the furnace and which carry my rail blocks. i

Each of my rail blocks comprises a body 10 preferably made of cast steel and cored 'out so as to provide a chamber 11. A boss 12 is provided at each side of the block, and this is screw-threaded for thereception of suitable pipe, wnereby water may be conducted to and from the blocks. In the upper face of each of the blocks is provided a concave surface 13, which furnishes a cradle for the reception and support of one of the tracks or rail 14 of the furnace. The upper edgesof the block are chamfered off so as not to interfere with the passage of the heat.

The blocks are arranged opposite each other and preferably in pairs and are connected together by suitable piping 15. A suitable source of water supply may be connected at 16, and a suitable drain 17 is provided for carrying off the water.

It is obvious that the water supplied at 16 will be forced through the pipes 15 and through the chambers 11 of the blocks, whereby the chambers will be kept comparatively cool, and thus preserve the supporting surface of the brick work of the furnace. V

lVhile I have shown but one pair of supports, it is obvious that the supports are arranged at suitable intervals throughout the length of the furnace.

Having thus described my invention, what I claim is:

1. The combination with a furnace, of a plurality of rail blocks, each comprising a hollow body, each side of each block being provided with a threaded pipe connection, and pipes connectingoppositely arranged blocks, whereby a cooling fluid may be conducted through the blocks.

2. The combination. with a furnace, of a plurality of rail blocks, each comprising a hollow body, provided with a cooling chamber and threaded pipe connections, and pipes connecting oppositely arranged blocks, whereby a cooling fluid may be conducted through the blocks.

3. The combination with a furnace, of a plurality of rail blocks each comprising a blocks, each comprising a hollow body, each 7 hollow body, provided with a cooling chamside of each block being provided with a ber and threaded pipe connections, the up threaded pipe connection, and pipes conper face of the body being concave for the necting oppositely arranged blocks, where- 5 reception of the tracks of the furnace and by a cooling fluid may be conducted through 15 pipes connecting oppositely arranged the blocks. blocks, whereby a cooling fluid may be con- In testimony whereof I have hereunto ducted through the blocks. signed my name.

4. The combination with a furnace, of a 10 plurality of individually supported rail GEORGE J. RENNIEJ