US51338A - Improved device for annealing car-wheels - Google Patents

Description

UNITED STATES PATENT EEICE.

H. V.MO0RE, OF RIDGEPORT, GNNECTICUT.

Specification forming part of Letters Patient No.V IBLSSS, 'dated December 5, 1865.

To all climalit mayrconcem:

Be it known that I, H. W. MOORE, ot' Bridgeport, in the county of Fairfield andState-of Connecticut, have'invented a new and useful process -for annealing, or for annealing and cooling car-wheels that are cast with achilled tread or run; and I do hereb7 declare the following to be a full, clear, and exact descripried on. Fig. 3 represents a similar top view,

with a top View of` the wheels placed therein.

Simi-lar' letters of reference where they oc cur in the separate jligures denote like parts in all cases.

Many p'lanshave been devised For cooling car-wheels that are cast with a chill, so as to obviate the strain incident to unequal shrinkin g and preserve the chilled tread or rim; and however much may have been accomplished by others there stillre1m1iuedinuehto be done before a perfect wheel could be produced. l. believe Lhavc genes stepbeyond any of those who preceded me, and have produced a wheel that. has more strength and less strain in its web than ang,v others, the metal in the web being annealed so as to approximate malleable iron, while, at the saine time, the chill in thc rim or tread and flange is perfectly maintained.

My process consists in removing the wheels from the ila-sl: or mold while still hot and plac- 4 ing them in a-pile in a pit or ense, and dividing the portion that is to be annealed from the portion that is cast in a chill by a metal or other suitable ring or partiti-on and filling the inside of the ring or partition with charcoal andthe Outer side with sand or other non-conducting material, by which means the plate or web of the Wheel, by the burnin gslowly ofthe charcoal, becomes annealed and of the nature of malleable iron, while the chill is preserved in its original stale. l

To enable others skilled in the art to make and use my invention, l will proceed to describe the saine, with reference to the drawings. A represents a permanent case, in which hay process may be carried out. I t is composed of an outer 'shell of iron, a, lined with lire-brick, 1;,and standing upon apermanentba-se, c and B represents the car-wheels placed therein, there being a ring, C, between each of the adjacent wheels tov keep them vseparate and to detne the line between the portion to be an'- nealed and the portion to be let'tin the chilled state. As these wheels and rings are placed one upon the other in the case or pit charcoal in lump or in liner pieces isl thrown into the space inclosed by the ring, as shown by the lines (l el in Fig. 1, while sand or other equivalent non-conducting material isput in, on, around, and behind the tread and lange ot the wheel, as shown at e c iu said Fig. 1, and thus the chilled portion is preserved from injury by being heated in contact with'burnin g material, which will always soften or draw out `the chill to some extent.

The charcoal is ignited by the red-hot iron of the wheels and burns slowly' in a. semisniothered state, which carbonizes the portion ot' the wheel it is in contact with and prevent-s any straininthe, wheel caused byunequal shrinking, the sand `outside ot' the ring` preventing any such annealingprocess to the tread and ilange or rim ofthe wheel.`

By this process I can make a very strong, and, at the same time, a ver light wheel.

What l claim, and desire to secure by Letters Patent, is A Annealing the center or plate of a car-wheel 'so as to render itquite malleable, without annealing or injuring the chillor tread of the wheel, by means ot' an annular partition or wall interposed between the wheels, theinside of the wall having charcoal and the outside sand or their substantial equivalents placed therein, as andv l'or the purpose substantially as described.

' ll. W. MOORE.

Witnesses E. A. PARNETT, W. S'. KrmWLToN..1

Images