US575948A - Half to isldor braveman - Google Patents

Description

(No Model.)

G. W. HAYTON. BRIDGE WALL FOR BOILER-S.

No. 575,948. Patented Jan. 26, 1897.

J WITNESSES IIVI/E/VTOR ATTORNEYS.

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UNITED STATES PATENT OFFICE.

GEORGE WALKER HAYTON, OF BROOKLYN, NEW YORK, ASSIGN OR OF ONE- HALF TO ISIDOR BRAVEMAN, OF NEW YORK, N. Y.

BRIDGE-WALL FOR BOILERS.

SPECIFICATION forming part of Letters Patent No. 575,948, dated January 26,1897.

Application filed May 1, 1896. Serial No. 589,908. (No model.)

To all whom it may concern.-

Be it known that I, GEORGE WALKER HAY- TON, of Brooklyn, in the county of Kings and State of New York, have invented new and useful Improvements in Bridge \Valls for Boilers, of which the following is a full, clear, and exact description.

The object of the invention is to provide a new and improved bridge-wall for marine and other boilers, and arranged to securely hold and lock the bricks in place to prevent the wall from being broken by the firemen in raking the fires.

The invention consists of certain parts and details and combinations of the same, as will be fully described hereinafter and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a sectional side elevation, on theline 1 1 in Fig. 2, of the improvement as applied. Fig. 2 is a transverse section of the same on the line 2 2 of Fig. 1. Fig. 3 is a perspective view of the key-brick, and Fig. 4 is a similar view of one of the end bricks.

The improved bridge-wall A is arranged at the end of a fire-box B and is provided with the usual transverselyextending supportingplate O, fastened at the ends to the sides of the boiler in the usual manner. On top of this plate 0 are set the end bricks D and D, the intermediate bricks D and D and the key'brick D set in between the intermediate bricks D and D The opposing faces of the bricks D and D and those of the bricks D and D are interlocked, and for this purpose the inner faces of the end bricks D and D are provided with recesses D into which enter projections D formed on the outer faces of the intermediate bricks D and D The inner faces of the intermediate bricks D and D are provided with grooves D and corresponding grooves D are formed in the outer faces of the key-brick D Keys E are used to securely hold and fasten the bricks transversely in place by forcing the end bricks D D firmly against the side of'the boiler, as plainly indicated in Fig. 2. Each key E fits into the grooves D and D of the key-brick D and the intermediate bricks D and D The two grooves D and D register one with the other, and the registering grooves extend diagonally from the front upper corner of the bricks toward the rear lower corner, as plainly indicated in Fig. 1.

Now it will be seen that by the arrangement described the bricks can be readily set up on the plate 0 and interlocked with each other and securely fastened in position by the keys E, as above explained. It is evident that such a set of bricks can be readily set up by any fireman or other unskilled person, so that in case a set of bricks are burned out they can be readily replaced at any time by the attendant of the boiler and without the use of mortar or like building material.

It is understood that bridge-walls as heretofore constructed are made of ordinary firebricks set upon a plate 0, and it frequently happens that the bricks are knocked over by the fireman manipulating the raking-bar over the fuel.

The boiler-shell fits snugly over the rounded-off end bricks D D to prevent any one of the bricks from being lifted up and knocked off the plate 0.

It is understood that the bridges of boilers should be maintained at all times at an even and certain height,with the view of regulating the draft. In ordinary bridges built with bricks the latter are frequently knocked away one at a time, thus lowering the bridge and rendering it ineffective for the purpose for which the Wall is built.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. A bridge-wall for boilers,-comprising a series of bricks having their faces provided respectively with projections and recesses, whereby they are adapted to interlock with each other, a key-brick provided with grooves .grooves,substantially as shown and described.

2. A bridge-wall for boilers, comprising end bricks, intermediate bricks having their faces x0 and keys inserted between the faces of the key-brick and the adjacent intermediate bricks, the said keys extending in grooves formed in the adjacent faces from the upper front corner toward the lower rear corner, substantially as shown and described.

lEORGE VALKER I-IAYTON.

XVitnesses THEO. G. Hosrnn, J AS. M. HENLEY.

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