US1645735A - Grate bar and support - Google Patents

Description

oct. 18,1927'. A. E. BINDER GRATE BAR AND SUPPORT Original Filed Dec. ll, 1925 '2 sheets-sheet 1 oct. 18, 1927.

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A. E. BINDER GRATE BAR AND SUPPORT Original Filed Dec.

2 Sheets-Sheet 2 gru/nto@ nden Patented Oct. 18, 1927.

UNITE n 'ADODB emersa 0,1? SPOKANE, WeSaINeTQN.

GRA'IE BARAND SUPPORT;

Application ledrDecember l11, 192e, Sera1 No74,80S. Renewedjay v31, 192'?.

This invention relates` to e, new y, and useful improvements in grates`and particularly to furnace states.

Qiieobject of ther invention is to vprovide a support for a grate bar section which will effectively maintain the grate bar section against movement longitudinally or transversely of the support.

Another object is to provide a support for a grat-e bar section which permits free circulation of air between it and the grate bar support, for the purpose of preventing the section from burning out too rapidly, and also for maintaining the support in a cool condition.

A further object is to provide a grate bar section made up of a number of parte, thus permitting the replacing of a burned out part, without the necessity of removing` the entire grate, or the entire grate bar.

A further objectis to provide a novel means for suspending the grate bar support on the walls of the ashpit, whereby a coniparatively rigid structure is produced.

Other objects and advantages will be apparent from the following description when taken in connection with the accompanying drawing.

In the drawing:

Figure 1 is a top plan view of a grate bar made in accordance with the present invention.

Figure 2 is a vertical longitudinal central sectional view on the line 2*2 of Figure 1.v

Figure 3 is a side elevation ofthe device,

Figure 4 is a vertical transverse sectional view on the line 4 4 of Figure 1.

Figure 5 is an end view of the support.

Figure 6 is a perspective view of the hanger.

Referring particularly to the accompanying drawings, 10 represents the side walls of the ashpit of a furnace, in connection with which the invention is used, said walls having the inwardly directed lugs 11, on which the support is arranged to be suspended. The support-comprises the longitudinal side bars 12 which are deepest at the center, and gradually reduced toward the opposite ends. Connecting the bars 12, adjacent the ends thereof, and intermediate said ends, are the transversely extending bars 13, the upper faces of which are transversely and oppositely beveled. as shown at 14. Connecting the ends of the bars 12, outwardly of the bars 13, are the transverse webs 15, each of which. is formed with a downwardly open-v ingnotch `16 in its lower edge. The` upperv edge portion ofeach of the bars 12, throughout .the entire lengtli,thereof',vis downwardly and inwardly bev-eled, as shown at 17, and is formed with a longitudinal series of upwardly extending, and regularly spaced lugs 18.

Disposed on the upper faces of the lugs 18, of the support, is the upper portion of the grate bar, said portion including separable Sections 19 each of which comprises a casting having transverse oblique bars 2O resulting in intervening oblique slots 21, and the longitudinal connecting side bars 22 Formed on the lower faces of certain of the bars 2O are the depending lugs or webs 23, which engage between the side bars or walls 12, of the support, and have their ends beveled to rest on the beveled faces 17 of the side bars or walls, whereby said sections are held against lateral movement on the support. he ends of the side bars 22, of each section 19, project short distances beyond the end bars 2O for abutting engagement with corresponding portions of the bars of the adljacent sections, whereby to properly space the end bars 2O to provide for intervening slots, between the sect-ions.

Resting on the lugs 11, of the aslipit walls 10, are the horizontal wings of the angle plates 25, and formed on the exposed face of the depending vertical wing of each plate is a. substantially T-shape'd lug 26, which is arranged to engage in a slot or notch 16, of an adjacent web of the support. The inner face of the head portion of the lug 26 is inclined to provide for a we'dging action with the inner face of the web, whereby to firmly retain the support in place, and prevent any tendency toward looseness. This construction also permits easy and quick removal or replacement of the support.

The beveled faces of the bars of the support serve to direct the asheswhich fall between the bars of the grate b'ar sections, down into the ashpit.

The lugs 18 support the sections 19 of the grate bar above the support, while the spaces between the lugs permit the free passage of air between the support and said sections, whereby both the sections and support are maintained in a `cool condition, which will prevent too rapid burning out of the grate. Furthermore, the fact thatv the grate bar formed of separable sections, permits the lll() liu.

easy removal of a burned ont section, thereby obviat-ing the replacing of the entire grate,

or grate bar.

lVhat is claimed is:

The combination with the Walls of an ashpit having longitudinal ribs thereon, of a grate bar including a pair ofV L-shaped brackets engaged on said ribs, each of the brackets having a horizontal headed lug projecting troni its lower end portion, a support having parallel side bars formed with spaced elevated portions on the upper edges and transverse connecting and spacing bars, the

endmost of the transverse bars :having vertical wedge notches receiving said headed 15 vated portions and having certain of the Y bars thereof extended downwardly between 20 Vthe parallel bars of the support and the ends thereof beveled in correspondence with and ior engaging the beveled portions of the parallel bars of the support.

In testimony whereof, I aix my signature.

ADOLPH E; BINDER.

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