US1672413A - Furnace grate - Google Patents

Description

June 5, 1928. Y

H. B. HOLT FURNACE GRATE Filed Aug. 9, 1927 INVENTOR Patented Junel 5, 1928. i y

UNITED STATES PATENT CFFICIE'.

HARRIS B. HOLT, 0F PITTSBURGH, PENNSYLVANIA, ASSIGNOR TO ROSEDALE FOUN DRY & MACHINE COMPANY, 0F PITTSBURGH, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

FURNACE GRATE.

Application ined August 9, 1927, serial No. 211,692.

My invention relates to furnace grates, this platform; and I have placed the hopper particularly to grates for furnaces* Whose 6 through which the grate is mechanically fire boxes must be accessible through end stoked on .the farther side of platform doors and which must be brought within the'left-hand` side ofthe platform as seen fi narrow space limits. The grate structure in the drawing, and on the side remote from includes an endless chain grate andit may the furnace Wall. i for instance be applied in replacement of a Stated in other words, I have formed by grate structure of simpler form which, and between platform 5 and the upper face stoked manually through the door of the of grate 4' a horizontal extension of hopper 6, l fire-box, has been built within a space of within which. extension the infed fuel shaped small vertical extent. and bedded is advanced to pass through the The accompanying` drawing is a view in furnace wall and enter the fire box. j vertical and longitudinal section through By my invention, new installations may` the furnace of a steam boiler,.in which furbe made with economy of space, and old nace my invention is embodied. installations in which space is limited may The fire box l of this furnace opens to be newly equipped with endless-chain grates. boiler flues 2. In the front wall ofthe fire I claim as my invention: Y y boi; a door v3 is placed, and this door must 1. A furnace with a door in its front Wall,

be accessible, both for purposes of observaa platform external to the',l furnace wall.v

2U tic-n, and, when need be,v for the charging o f from whichthe said door is accessible, a. fuel fuel to the grate within. The fire .boX 1t hopper arranged on the side of the platform may be understood is so situated that a space remote from the furnace wall, and a grate of of say no more than' twelve to seventeen endless chain type whose upper horizontal inches in vertical extent is available beneath reach is continued from beneath the hopper, for the arrangement of the grate. beneath the said platform, and through the an endless chain grate l is shown underfurnace wall to the chamber within. l lying the lire box. Manifestly suchr a grate 2. A furnace with a doorin its front wall, may be brougl'it within the space limits a platform external to the furnace Wall, named, but the problem remains, how, leav from which the said door is accessible, a 30 ing door 3 accessible, to malte provision for fuel Ahopper arranged on the side of the platthe mechanical stolring of the grateso situform remote from the furnace Wall, and a ated. y grate of endless chain type whose upper This problem I have solved in the manner vhorizontal reach extends beneath said platshown. I have provided a platform at the form and through the furnace wall to the r front of and externally of the wall of the chamber within, said platform and .grate furnace, a platform from which the furnace cooperating to form ahorizontal extension i door 3 is accessible; I have. placed this of said hopper.

platform, elev ed at an interval above In testimony whereof I have hereunto setV the ground level of the structure;,I have my hand. y 40 prolonged the grate a beneath and beyond HARRIS B. HOLT.

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