US99748A - James i - Google Patents

Description

' J. i. BARD.

Fireplace Back.

No. 99,748. r Patented Feb. 15,1870.

wifinassegsxi nits tetra mat JAMES LBARDfOF NEW ORLEANS, LOUISIANA.

Letters Patent No. 99,748, dated February 15, 1870.

FIRE-PLACE BACK.

The Schedule referred to in these Letters Patent and making part of the name i'netallicfire-place back and jams combined in one single piece and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the annexed drawing, making a part of this specification.

My object, in the creation of my invention, is to provide a back for grates in all kinds of fire-places which will be exempt from liability to injury and destruction under any ordinary circumstances, and hence to avoid alike the expense and the necessity of frequent renewals, or repairs of the same, which now follows, as a matter of course, from the fact that such backs are made of bricks and moltar or cement, or of some other equally objectionable material; and furthermore, so to make the said back that it may be incorporated in the chimney or fire-place, as the same is being originally constructed, or be afterwards introduced therein without the slightest difficulty, and in such a manner, moreover, as that it will radiate and throw out all the heat absorbed by it intothe room or chamber to be warmed.

My invention is anew article of manufacture, strict-' ly so to'speak; and 1 It consists of a cast-iron grate-back of peculiar formation that is provided with 'a'square opening at its bottom for the convenient hestowal of the ashes in a recess in the chimney behind the'same, and flanked on both its sides by projecting front ledges to serve as jams to coverand protect the brick-work on the sides ofthe fire-place.

. But my invention will be better understood by referring to'the drawing, which presents a perspective view of it as it appears in a detached state, or before itis applied to a fire-place, the form thus shown being the one in which I prefer to make it.

Itwill be observed on inspecting the drawing that my invention consists of a single or solid piece or casting, in which there is a back and two side projections, there being in the lower part of the back a square opening designed to lead into an open .space for the convenient bestowal of the ashes behind the same.

This opening is designated by the letter D on the drawing.

The back portion of the casting, or rather that portion of it which constitutes the grate-back proper, and which is marked A, is perfect] y straight in its vertical lines as high up as the top of the grate, or in some cases even higher, whilst in its upper part or section its form is that of two reverse curves, as shown at B and 0, when viewed transversely, so that it may be said to be not very dissimilar. in this section to an elongated letter S, in its cross-sections from the front to the. rear.

This configuration of the back forces the flame coming up from the grate, which latter we may suppose may occupy about one-third of the space from thebot- I tom of the back upwardly, considerably in front of the throat of the flue or chimney through which it passes. in its ascent, and thereby increases the draft up the chimney and the radiation of the heat, as well as its direct and positive effect within the room in which the fire-place is. situated.

The recess behind the opening D in the back not only afi'ords a place of deposit for the ashes, &o., until it be convenient to remove them, but it also effectually prevents the floating ashes from finding their way out of the fire-place and into the room, and hence avoids an evil which is incident to all grate fire-places, as at present constructed, with which I am acquainted.

From each side edge of the back A project the ledges E E, either at right angles, as shown, or ohliquely, so as to present flaring surfaces in reverse direction to each other for the better reflection and radiation of all the heat absorbed by the device into the room, or from the fire-place.

A grate may be connected with my invention in any usual and proper manner, and if necessary a suitable hook may be cast at the proper pointjust above the top of the opening D, in the centre of the back A, for holding the grate steadily in position, in the usual man ner in which this is done. l

My invention may be put in its place whilst the chimney in which it is to be introduced is being made, or it may be inserted afterwards with equal facility.

It may be manufactured as cheaply as any rough casting, and be varied in its dimensions, so as to beadapted to chimneys and fire-places of any and all sizes. 1

Being of cast-iron, it absorbs, retains, and radiates heat far more powerfully than tire-places in which the backs and jams are made of bricks or cement, and

hence will economize to a very great extent the fuel required to produce a given measure or amount of heat for any given length of time. But beyond ail these' advantages it provides a grate-back which will last in.-

definitely, without ever wanting the slightest repair.

Having thus described myinvention,

What I claim, and desire to secure by Letters Pat- Vitnesses:

Run US R. RHODES, H. N. J ENKINS.

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