US100335A - Improvement in base-burning stoves - Google Patents

Description

PATENT OFFICE.

JAMES vSIBEAR, OF PHILADELPHIA, PENNSYLVANIA. Y'

IMPROVEMENT IN BASE-BURNING STOVES.

I Specification forming part of Letters Patent No. 100,335, dated March 1, 1870.

I, J AMES SPEAE, of the c1ty and county of Philadelphia and State of Pennsylvania, have invented certain Improvements in Stoves and Heaters,7 of which thel following is a specilication:

The nature of my invention consists inthe.

construction and combination of the grate with the fire-pot, so as to make an opening between the fire-pot and grate through which ,the cinders, slate, and clinkers may be easily removed without any danger of the body of fire falling down into the ash-pit.

In all stoves heretofore made Aslate jand clinkers will in time collect above the grate, obstructing the draft and rendering it necessary for the grate to be dumped and anew re made.

By my improvement I overcome this diiiculty, and a perpetual fire can be kept going without dumping the grate.

To enable others skilled in the art to make' and .use my invention, Iy will now proceed to describe its construction and operation, reference being. had to the accompanying drawings, of which- Figure 1 is an elevation of the outside body. Fig. 2 is a section through the stove. Fig. 3 is a' sectin through fire-pot and grate, in a niodied form. Fig. 4 is a plan of the grate. Fig. 5 is a transverse section through grate, showing raised center.

A is the usual outside body of the stove, (see Fig. 1.) l B are the doors of the ash-pit. C, doors through which the bars are inserted for operating-the grate and removal ofthe clinkers, I) are doors with mica windows 11,'through which the lire lmay' be seen in the basket-grate E, and also to enable the operator to direct his movements while removing the clinkers.. In the rear of Fig; 2 are seen two-pairs of smaller doors, d2, for a similar f purpose of observing the tire, and also for the removalot` clinkers. rPhe basket-grate E is suspended in the cylinder by a ring at its npper edge. Above it is the fire-brick pot G.

, The coals are fed to the fire by a door above,

or by a reservoir with revolving light outside, as is customary with stoves at present in use and as described in my patent dated July 7 1868, No. 7 9,696. Beneath the basket-grate E is placed. the grate H, altogether clear from it, at a distance of two orthree inches, the distance varying according to the size of the coal and diameter of the grate. The outside of this grate is a circular ring, K, forming part of the grate-surface, restingin four guides, K, secured to the cylinder and free to rotate within them. This ring is somewhat larger than the lower mouth of the fire-pot, and is curved a little upwardA at the edge, sothat the coals and cinders are banked up, -as shown inFig. 3, and thereby prevented from falling out. Inside this ringis a circular grate, H,

having openings for air, and turning on a.

pivot, m', resting on the cross-bar N, which is pivoted to the sides of the cylinder, and by means of the arm 'n' the grate H may be dumped. This rotating and dumping movement has been fully described in my previous patents. Beneaththe grate is a detlector, O, for giving direction to the falling ashes. F ig.

3 shows a clay .fire-pot, P, within an iron cylinder, the grate being carried by arms attached to the outside ot' tire-pot or cylinder. The draftpasses' to the ire through the grate H, and also through the circular space R.

In a stove constructed in this manner, alll the slate and clinkers can be removed above the grate, and the fire kept in continously.

moved through the opening It, and the lire y' y continuously kept up, as before described.

vWhat I claim as my invention, and desire to secure by Letters Patent, is-

l. suspending a grate below Athe, 1ower` mouthof therepot, at 'a distance sufficient to permit'theremoval of slate and clinkers, substantially as herein described.

i 2`. A grate-surface for the coalto rest on l larger than the opening of the cylinder, in combination with the opening R, for thepurpose herein described and specified.

` -J AMES SPEAR.

Witnesses JOHN P. LEY, A. EIGKMEYER.

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