US169259A

US169259A - Improvement in furnace-grates

Info

Publication number: US169259A
Authority: US
Publication date: 1875-10-26
Anticipated expiration: 1892-10-26

Description

v H. W. GRANGER.

Furnace-Grates.

Patenfed Oct. 26,1875.

N-PETERS, FHOTO-LITHOGRAPHER, WISHINGTON, I). O.

UNITED STATES A PATENT OFEroE.

HARRY W. GRANGER, OF DETROIT, MICHIGAN.

IMPROVEMENT IN F U RNACE-GRATES.

Specification forming part of Letters Patent No. 169,259, dated October 26, 1875 application filed June 29, 1875.

To all whom it may concern:

Be it known that 1, HARRY W. GRANGER, of Detroit, in the county of Wayne and State of Michigan, have invented an Improvement in Furnace-Grates,'of which the following is a specification:

The nature of my invention relates to an improvement in furnace-grates of that class in which the grate-sections are hung upon trunnions and oscillated thereon when it is desired to free the fire-bed from clinkers, ashes, and other refuse matter; and its object is to so construct, arrange, and combine the several grate-sections, as that they will be oscillated in alternating inclination by a single lever inserted in an arm pendent from that section which is nearest to the furnace-front, as more fully hereinafter set fort-h.

Figure 1 is a perspective viewof my improved grate. Fig. 2 is a side elevation of the same with the side bar of the frame removed. Figs. 3, 4, and 5 are, respectively, inverted perspective views of an intermediate gratesection, a carrier grate-section, and the front carrier grate-section.

In the drawing, A represents a cast-iron rectangular frame, longitudinally disposed in the furnace. The frame maybe cast in one piece for the smaller examples; but it'is preferable to make the sides and ends separate and bolt them together. The ends are cast with inwardly-projecting grate-fingers a. In the sides are formed depressions b, at regular distances apart, to receive the trunnionsb at the ends of the grate-sections B B, transversely hung in the frame, and all of which have projecting fingers a interlocking with I each other and with the fingers a at theends of the frame. Every second or alternate gratesection in the frame is a carrier-section, similar to that shown in Figs. 4 and 5 at B. The intermediate sections are shown at B, Fig. 3. Each section B is cast with a Wiper or carrier, 0, from which there is pendent an arm, d, having a wrist, d, at its lower end, all of which wrists are connected by a rod, 0, secured by a key through a hole, 0, in the extremity of each wrist. The front carrier-section, Fig. 5, is cast with a pendent arm, f, with a socket to receive the end of the lever D, which is vibrated in a vertical plane through the ash-pit opening, and, through the connecting-rod (J, oscillates all the sections B. Each sect-ion B has cast on end a horizontal jack, 0, with 'a rounded pendent bearing at each end, which rests upon the carrier 0 of the adjacent section B, which, when elevated, lifts that end of said jack, and thus tilts the section B in the opposite direction to the inclination of said section B, thereby breaking up the clinkers and freeing the fire-bed from the refuse matter of combustion.

What I claim as my invention is- In a sectional oscillating.furnace-grate, substantially as described, the carrying'and intermediate grate-sections, the latter provided A with the bearing-jacks, and the former with the carriers and arms, all of which are connected by a single bar, substantially as shown, and for the purpose set forth.

HARRY W. GRANGER.

Witnesses:

H. S. SPRAGUE, H. F. EBERTS.