US272599A - Territory - Google Patents

Description

(No Mdel.)

J. C. TAPBEINER.

Assn FURNAGE.

I Fig. Z.

Patented Feb. 20, 1883.

PATENT rtree.

JOHN O.TAPPEINER, OF BISBEE, ARIZONA TERRITORY.

ASSAY- FURNACE.

SPECIFICATION forming part of Letters Patent No. 272,599, dated February 20, 1883. Application led September 12, 1882. (No model.)

To all whom it may concern:

Be it known that I, JOHN O. TAPPEINER, of Bisbee, county of Cochise, Territory of Arizona, have invented an Improved Portable Assay-Furnace; and I do hereby declare the following to be a full, clear, and exact description thereof.

My invention relates to an assay-furnace which is' intended for the use ot' miners and prospectors, and to be easily packed up and carried from place to place, as needed; and it consists in the combination of devices hereinafter explained and claimed. At the top it is decreased in size, and has a collar, upon which the lower section of the pipe is made to fit. The pipe is made tapering, decreasing in size toward the top, and in sections which may be telescoped together, so that the whole can be reversed and placed in the furnace above the grate. A cap then closes the whole and is retained in place by a hinge-clamp and lock, which also serve to retain the pipe in place when in use.

Referring to the accompanying drawings for a more complete explanation of myinvention, Figure 1 is a view of my furnace set up ready7 for work. Fig. 2is a section showingit packed. Fig. 3 is a detail. Fig. 4 is a plan of cover.

A is the body of my furnace, the exterior casing of which is made of metal or suitable material and the interior lined with tire-brick, clay, or any non-conducting heat-resisting material. The body is made tapering, from four to ten inches in diameter, and about three times as high, increasing in size from the bottorn to the shoulders at the top, so that it has the greatest diameter where the greatest amount of room is required. rI`his also gives a better draft. The shoulders B of the cover are curved inward from the point ot' greatest diameter, and a collar, C, is formed at the top to receive the pipe. Within the furnace and around the upper edge is an iron ring,D, about oneinch wide and one-fourth of an inch thick. This ring resists external pressure and prevents the furnace being` crushed when it is packed upon an animal for transportation.

E is the fire-grate, which is preferably made of sheet-iron, coated also with tire-clay, and with round holes punched init. The burrs formed by punching the holes are turned up,

clay also.

and they assist in holding the coating of tireclay in place, the holes passing through the Below the grate is a draft regulating door, F, and G is adoor about thi ee-fourths ot' an inch above the grate, for the introduction of picks, drills', &c., to heat them for tempering when desired. Above lthis in another door, H, ofthe proper shape to receive a mufe, which lits it, and may be introduced when` ever needed.

I I are sections of pipe made tapering so that the lower end ot' the lower section will lit over the collar O at the top of the furnace, and the lower end of each succeeding joint or section tits tightly into the top of the next lower one, as shown, when they are all drawn out, thus making a pipe of any desired height.

J is a door made in the side ot' the lowest section, through which fuel is'supplied to the furnace from time to time, as needed, and through which the crucibles may be introduced.

In order to hold the cover B in place and steady it and the pipe, I employ a clamp, K, which surrounds the collar. One end extends down upon the side of the furnace and has a hinge-joint at L, and the other end extends down upon the opposite side of the furnace, and has a lock ot'auy suitable description at M.

When the furnace is to be transported or is not in use the pipe is taken otl", and by reversing it and pressing its small end upon the ground the joints will be loosened where the.

end of one section binds within the next, and the sections may all be telescoped one within the other. The top of the upper section is flanged or beaded, so as to prevent its being bent or broken when it is pressed upon the ground. lhen the pipes have been telescopcd they are placed in the furnace small end down, and occupy the space" between the grate and the top.

Three pairs of assay-tongs will fit between the pipe and the inside of the furnace.

The flux-boxes are made round, about two inches high, with central partitions and hinges, so that each will form two boxes, and they will t loosely inside the pipe. The iron mufde will also tit inside the pipe, and will be in no no danger of breakage during transportation. Then the whole is in place the cover is shut IOO down upon the top and is secured by the clamp, the whole beingthen ready for transportation.

This apparatus is designed for the use 0f ussnyers, miners, or prospectors, and is compact and portable. It can be packed upon an animal over any trail, and into districts where it can be made available in determining the value ofthe ores upon the spot. It is also useful for sharpening and tempering picks, drills, and other tools.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A portable furnace consisting ofthe upright body A, with its doors F, Gr, and H,

grate E, and cover B, with collar, as shown, in

combination with the pipe made in tapering sections I, so es to he extended or closed tel eseopically or reversed into the furnace, and having the charging-door J in the lower seetion, substantially as herein described.

2. The upright body A, with its cover B and sectional telescopic pipe Il, constructed as described, whereby it may be packed in the main body A, as shown, in combinfition with the z5 clamp K, hinged to the body ot' the furnace,

vand locking devices, as described.

JOHN G. TAPPEINER.

Witnesses LEWIS WILLIAMS, W. W. FENNER.

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