US66628A - Improvement in grates for furnaces - Google Patents

Description

. @uiten gieten @anni @ffice JESSE REYNOLDS, or PHILADELPHIA, PENNSYLVANIA., Letters Patent No. 66,628, dated July 9, 1867.

IMPROVEMENT IN GRATES POB. FURNAGES.

.I dige tlganlt referat tu im tigen ltrttm ntent :mt mating nari at its stmt:

TO ALLlWHOM IT MAY CONCERN:

Be it known'that I, JESSE REYNOLDS, of Philadelphia, Pennsylvania, have invented an Improvement in Fire-Haces for Furnaces, die.; and I do hereby declare the following to be a' full, clear, and exact description of the saine, reference being had to the accompanying drawing, and to the letters of reference marked thereon.

My invention consists in so constructing the grate-bearers of adire-place, and so arranging them in respectto the Walls, and for the reception of the bars, that the latter may be readily inserted and secured in their places or withdrawn.

In order to enable others skilled in the art to make and use my invention, l will now proceed to describe its construction and operation, reference being had 'to the'accompanying drawing, which forms a part of this specication, and in which- Figure 1 is a vertical section of part of a furnace showing my improvement.

Figure'2, a. transverse section of iig. 1.

Figure 3,'a section on the line 1-2, iig. 2.

Figure 4, a sectional plan'view of the furnace on the line 3 4, fig. 2 g and y Figure 5, a sectional view of part of an ordinary furnace.

Similar letters refer to similar parts throughout the several views.

A and A are the side walls, and Band B the front and rear walls of a furnace, in which are the ash-pit a, ash-door b, and tire-doorn. The cast-iron grate-bearers C and C', the former at the front and the latter at the rear of the furnace, are supported by'and have theiiI ends imbedded in the brick-work ofY the Side walls A and A'. In each of the grate-bearers is formeda longitudinal recess, e, for the reception of the ends f of the gratc-bar D, and the flanges t of the said bearers above the recess e serve as a partial support fior the walls B and B. At eachend of the grate-bearer G, close to the side walls of the furnace, and communicating with the recess e, is an opening, z', of'v a width corresponding to that of the ends of thegrate-bars, g. 4. Directly -over these openings t' a portion7', of the front Wall of the furnace is cut away, `for a purpose described hereafter. (Seeiig. l.) In the centre of the vfurnace are two or more cylindrical grate-bars, E, which are inserted from the front through circular openings in the bearers C and C', and in the recesses e of the bearers are partitions k c, one on each Side of, and one between the cylindrical bars.

One of the bars D is introduced into the furnace through the {ire-door, and its end inserted into the ,r recess e of the bearer C', as shown in fig. 1. Its opposite .end is then loweredA through-the cut-away portionj of the front wall, and through the opening z' of the bearer C, and is then -moved laterally through the recesses e until it comes in contact with the partitions k of-t-he bearers. Another bar is non inserted, and pushed up to the first, and this operation is repeated on both sides of the cylindricel bars E until the grate is complete, as shown in iig. 4. Each of the cylindricalV bars E above described is provided with a handle, i', outside thefurnace, by which the bars can be Withdrawn or turned round, so as to rake the fire in the centre of the grater'v The tire-place of a furnace, as usually constructed, is somewhat longer than the ash-pit beneath and this is rendered necessary by the usual manner of arranging the grate-bars, as sbownin iig. 5, the bars resting upon the bearers, and having their end sexposed; and as these ends are made wider than the body of the bar, so that the interstices of the grate may be preserved of an equal width, it is evident that a continuous ledge must be formed by the ends of the bars, and that there must be an objectionable accumulation ofjashes on this ledge. By constructing the fire-place and grate-bearers in the manner described, the Walls can be built up straight i from the bottom ofthe ash-pit. At the same time the objectionable ledge is avoided andthe draught improved. Under some circumstances the bearers may be inverted, so as to allow the b ars to be inserted :and secured in their places from beneath.

l claim as my invention, and desire to secure by Letters Patenti The bearer C, with its groove e and openings z'z', in combination with the recessed bearer C', the whole being arranged'within a fireplace for the reception of the grate-bars, substantially as described.

` In testimonywhereof-I have signed my name to this specification in the presence of't'vvo subscribing witnesses.

i. REYNOLDS.

Witnesses t CHARLES E. Fosrnn, Wt JA vRf. DELANYJ

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