US96328A

US96328A - William h

Info

Publication number: US96328A
Authority: US
Publication date: 1869-11-02
Anticipated expiration: 1886-11-02

Description

LEE & HARDENBERGH Hot Air Furnace; No. 96,328. Pafented Nov. 2, 1869.,

MPEYERS, FHOTO-UTHOGRAPNER, W-HDNGTDN, D C.

that same @3121 (twin-2.

WILIIIAM H. LEE AND CHARLES M. HARDEI BERGH, OF MINNEAPOLIS,

. I MINNESOTA.

Letters Patent No. 96,328, dated November 2, 1869.

HOT-AIR FURNACE.-

The Schedule referred to in these Letters Patent and making part of the same.

Be it known that we, WILLIAM H.- Lee and Cnsnnns M. HARDENBERGH, both of Minneapolis, in the county of Hennepin, and State of Minnesota, have invented certain Improvements in the Construction of Furnaces and Flues for Warming Buildings; and we hereby declare the following to be a full and sufficient description thereof, reference being had to the accompanying drawings, making part of the description, of which- &Figure 1 is a perspective view of the furnace, fines,

Figure 2 is a front elevation.

Figure 3 is a rear elevation, with back or cover of chamber K removed, to show the curved diaphragm N. Figure 4 is a transverse section of furnace and fines showing a side view of furnace.

A represents cylindrical fire-box.

B is door for firing up. I

' O is a grate for the furnace.

D is an outlet from fire-box to cylinder K.

E is a damper used for starting fire.

1*, lower series of radiating-fines.

G, smoke-box for check-draught. v

H, slide-valves for the check-draught.

I, upper series of radiating-fines.

J, converging radiator, receiving smoke from K, and converging to front.

K, cylindrical chamber.

N, diaphragm, to divert flame to the side radiators.

O, ash-door and pit.

P, opening, to reach fine-chamber K, for clearing J, or taking off part of the smoke elsewhere.

a a, flanges on casting, to bring all the wroughtiron parts snugly together.

1), songs, to secure plates H and their attachments in place.

S, legs or standards for the furnace.

t, lugs, for sustaining. grate O.

1, 2, 3, and 4, lateral fines of lower series F.

5 is the middle fine of lower series.

6, 7, 8, and 9, lateral flues of upper series I.

10 and 11, middle upper fines of series I.

Screw-bolts for tightening up, not shown in the drawings.

To enable others skilled in the art tomake and use our improvement, we give the following description of it.

The nature of the invention consists in the adapta tion of several individual devices for special purposes.

Thus, in using a series of many fines, it is not easy to control and distribute the flame and hot air equably. This we have done by the interposition of a diaphragm, n n, fig. 3, which throws the flame and hot air to the side fines, and equalizes the distribution of the heat, and a check-valve or draught in smoke-box G, which controls the heat thus distributed, by letting in air through slide-valve H, which slows combustion, and. economizes fuel.

Another feature of the invention relates to the construction of the heads or ends of the cylindrical portions, in such manner, in one casting, with uniforni flanges, that all the parts come together at once, and make a smoke-tight joint, by screw-bolts and rods.

The general construction of the furnace is of cast and wrought-iron. It consists of a large cylinder, A, containing the fire, and a cylinder, K, of like diameter, but shallow, as indicated in fig. 1, to receive the products of combustion from the lower range of fines F, and deliver the same to upper range of fines I, through smoke-box G, and. finally to the convergingfiue J, and thence to the chimney.

Operation.

The fire'is lighted at B in cylinder A,.figs 4 and 3,

out), and when ignited, damper E is closed, and the products of combustion follow the course of the arrows, traversing the length of the furnace four times. The distributer N renders a valuable service, compelling the flame and gases to pass through the lateral fines to a large extent, and thus equalizes the heat throughout the apparatus.

The above-desc1ibed cylinders, tubes, &o., should be enclosed or encased in brick-work, metal, or other suitable material.

Having stated the nature of the invention, and the mode of using it, a v

What we claim, and desire to secure by Letters Patent, is-

' cast-iron in a single casting, with flanges'a a a upon each figure, and to receive at once cylinders and fines F I J, the whole drawn together smoke-tight.

WM. H. LEE.

CHAS. M. HARDENBERGH. Witnesses: J. K. Ronenns,

SAML. B. CONDREY.