US108736A - Improvement in cooking-ranges - Google Patents

Description

Y zshets-sneepn STUART 8c BRIDGE.

Range, No. 108,736. Patented o'onjz, 1870.

' ZSheets-Shet 2. STUART & BRIDGE.

Rangel u No. 108,736. .patented Oct. 25 1870' fl/ Zrg'f'* FIZMQ@ Q i A l T'MQM'ZW l( ad# ihtitcd ,aS/lates aient @bijna DAVID STUART ANDA LEWIS BRIDGE, OF PHILADELPHIA, PENNSYLVA- NIA, ASSIGNORSTO STUART, PETERSON & OO., OF'SAME PLAE.

Letters Patent No. 108,736, dated October 25, 1870.

IM PROV`EM'KENT IN COOKING-RANGES.

The Schedule refei'red to in these Letters Patent and' making' part of the same WeLDAvID STUART and LEWIS BRIDGE, both of Philadelphia, county of Philadelphia, State ot' Pennsylvania, have invented an Improved Range, of which the following is a specification.

Nature and Object f the Inc-cation..

Our invention relates to improvements on that class of ranges in which the fire-place extends across one end of the range, the remainder of the latter being occu-l pied by the oven and its lines and our improvements, which are too fully described hereafter to need preliminary explanation, have been designed with the view of distributing the heat more uniformly to the oven and to the vessels on the boiler-holes.'

Description of the Accompanying Drawing.

Figures l and 2, Sheet No. l, are vertical sections of an improved range;

Figure 3, a sectional plan on the line l 2, fig. 2

Figure-4, Sheet No. 2, a transverse vertical sect-ion on the line 3 4, lig. 2;

Figure, 5, a front View; and

Ifignrc 6, a top view.

General Description'.

A is the fire-place of thc range, and l a, an opening through which a gridiron or tryingpan can be inserted, the said opening being provided with a suitable door.

D is the oven, having a suitable door or doors in front of the range, and between the -plate b of the oven and plate d of the hre-place and ash-pit, is a flue, E, communicating below with a horizontal flue, F, between the bottom-plate of the oven and Ybottomplate of the. range, and above with the due G between the top of the oven and top-plate c of the range.

A plate, cl, forming a horizontal o`r nearly horizontal continuation of the vertical plate d, divides a flue,'G', throughout a portion of its length, the products of combustion passing over the top of the plate d and returning beneath the same, and passing under the oven, or taking a direct course over the top of the oven, according to the position of the. damper, which can be depressed as shown on fig. 2, thereby exposing an opening, my, in a transverse partition, h, 0r elevated as shown in lig. 1, so as t0 close the said opening.

This partition nis bent toward a corner of the exitopening a', as seen in fig. 3, so as to prevent the access to the said opening of all the products of combustion, saving such as pass through the opening/1n. The portion, Gr of the top flue to the right of the partition 71, however, communicates with the exit-opening, and also with the vertical 'due I at the end of the 'range opposite the fireplace, and with the tlue lll beneath the oven.

In single-oven ranges or range-shaped stoves ofthe class to which our invention relates, it has been the practice either to carry the products of combustion yfrom the lire-place downward beneath the oven and vunder the four rear holes y, or to so divide the lines longitudinally that the products of combustion passed round or nearlyround the oven through one ue and returned through an adjacent flue; hence the heat was unequally distributed; for instance, the vessels on the front row of boiler-holes,A marked y y y in 1ig.`6, were subjected to amore intense heat from the products of combustion passing direct from the 'tire-place, than vessels on the row of'holcs y y' y above thc return flue in which the products of combustion, after passing through a tortuous course, had lost much of their heat.

This unequal distribution and loss of heat is avoidedA in our improved range by causing the products of' combustion to pass in an undivided volume beneath the first four boiler-holes, and th'en throughzusilngle flue above or around the oven.

It will be readily understood, by noting the position of the boiler-holes shown by dotted lines in lig. 3, that vessels on the four boiler-holes to the left will be lequally or very nearly equally hea-ted, while vessels on the two boiler-holes to the 'right will be heated alike by the products of combustion which pass from beneath the oven and through the flue I-to the exit opening.

By our arrangement of lues, too, the oven is more equally heated than by the direct diving-flue, or by return ilucs, as in the latter case the oven must neces,-

.saril y have a greater heat imparted to it at the por-v tion where it 'is subjected to the action of the products of combustion passing through the first ilue, than at' the other portion, where it is subjected to the products of combustion decreased in temperature on passing through 'the return iiuc.

It will be observed on reference to g. 3 that onehole y at the corner to the right, the shield causing the products ofcombustion to pass beneath this boiler- Vhole before it passes beneath the adjacent hole at the I lates to the fireplace, on the opposite sides and rear ends of which are horizontal angcs, t, for supporting the lire-brick lining, there being in front of the fire: place a vertical grate, 1v, to which access may he had through an opening, e, in the front plate of the range.

The lire-brick linings at the rear and on the left of Another important feature ot' our improvement rethe fire-place can be retained in their proper position by the top plate of the range, but the lining j to the right, iig. 2, is held by two plates, k, arranged to move in guides on the plate d', and bent at the ends so as to overlap the said 1iningj, the opposite ends beingarranged to receive pins, y. which serve to ret-ain the plates and lining. Y

The grate M is entirely independent of', and may be free from contact with, the lining of the fire-place, the grate having at the rear a pin adapted to a projection on theV ledge t, iig. 4, and another pin, t', passing through a hole in the front plate of the range, so that it canrbe readily agitated by applying a suitable instrument to this pin.

Claims.

In testimony whereof We have signed our names to this speetication in the presence of two subscribing Witnesses. ,i

DAVID STUART. LEWIS BRIDGE.

4lVitnesses A. H. PERKINPINE, Jos. McGLAnY.

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