US65043A

US65043A - Thomas w

Info

Publication number: US65043A
Authority: US
Publication date: 1867-05-28
Anticipated expiration: 1884-05-28

Description

T. W. BALL.

Tempering Metals.

Patented May 28, 1867;

Inventor %WZ/@% Witnesses:

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THOMAS W. BALL, 0F MORRISANIA, NEW YORK.

Letters Patent No. 65,043, mad at, 28, 1867.

IMPROVEMENT IN TEMPERING UMBRELLA-RIBS.

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TO ALL WHOM IT MAY CONCERN:

Be it known that I, THQMAS W. BALL, of Morrisania, in the county of Westchester, and State'of New York, have invented an Improvement in Tempering Unibre.la-R'ibs; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being bad to the annexed drawings, making partof this specification, wherein- Figure 1 is a longitudinal section of said machine; and

Figure 2 isa cross-section of the same.

Similar marks of reference denote the same parts.

It is found by experience that heat applied to one side of a. rib does not temper the same with uniformity, that is, one side of the metal is tempered more than the other, and hence the spring or elasticity varies on opposite sides. 7

The object of my invention is to hold umbrella-ribs in a straight form after they have been hardened, and while in that condition expose them to a uniform temperature on all sides, so as to temper the same and leave the rib with a uniform spring in all directions, and straight.

I make use of a tube or series of parallel tubes or tubular openings arranged in a cylindrical form or in a plane, and each tube is of a size to pass through it, the rib to be tempered, and I employ gas to heat the tube and the rib within such tube or tubular opening. The tube retains the rib in a straight form while being tempered, and hence the rib will remain straight when cool.

In order to heat the tubes or tubular openings with uniformity on all sides I'employ gas, and rotate the tubes either separately or in a circular range, either horizontally or vertically, so as to bring all parts equally into contact with the heat, or I have the gas-blast all around the tube or tubular opening, or rotate the gas blast around such tube.

In ordr to prevent loss ofheat from the large radiating surface causing inequalities in the tempering operation or injury to the operator, I enclose the tubes or tubular openings in a double shell or casing, filling the intervening space with plaster or some non-conducting material, thus insuring perfection in the tempering as well aseconomy. I g i I have shown in the annexed drawing a series of these tubular openings arranged in a circular form and supported upon suitable ends or heads. Within this circular range a I introduce the gas pipe I) that has burners that heat the inner sides of the pipes at, and a second range of gas pipes and burners, a, heat the outer sides of said tubes. dis a casing around the outside of the tubes, and a similar casing may be made within the range of tubes to aid in equalizing the heat. The exterior casing e is made of two thicknesses, with plaster or other non-conducting material between to retain the heat. I introduce into these tubes or circular openings the ribs, and I- supply said ribs successively into thetubes, and revolve the range of tubesgradually so as to bring them into contact with the heat on both sides, and by the time the range has been revolved the first rib is tempered, and ready to be pushed out by the introduction of another rib to be tempered. If the gas were revolved, and a blast or blower employed, the range of tubes might stand still and be filled successively.

\Vhat I claim, and desire to secure by Letters Patent, is

1. A tubular opening, intO which the ribs are introduced, in combination with gas jets, 'or other source of heat, so applied as to act upon all sides of such tubes or tubular openings, and temper the umbrella-ribs with uniformity, as specified. I v

2. I claim a'double casing of non-conducting material in combination with such tubular openings, and heat applied in the manner and for the purposes specified. v

In witness whereof I have hereunto set my signature this 21st day of December, A. D. 1866.

THOS. W. BALL.

Witnesses:

CHAS. H. SMITH, G120. D. WALKER.