USRE1444E - X e edward a - Google Patents

Description

` tom.

f UNITED STATES PATENT OFFICE.

`EDWARD AL. Renners, or NEW YORK, N. Y., Assmann or AND wiLLIAM J. nnMonnsT.

IMPROVEMENT INAPPARATUSMFOP, vULcANlziNG RUBBER, ac;

- y Speciication)tbrmingpart ot' LettersPatent'No. 23,948, dated May 10,1859; Reissne'vNo. 1,444, dated Marchal, 1563. f l

To all whom it may concern.:

Be it known that EDWARD A. L. EGBERTS? joints exist to keep them steam-tight.

' if By making the parts B and C all in one the very and WILLIAM J'. DEMoRnsT, of the city and: State of N ew York, are the-inven tors of a new and Improved Apparatus for Vulcanizing India-Rubber and other Vulcanizable Gums, of which the following is a full, clear, and exact description, reference being had to the accompaiwing drawings, making a part of this speciiication.

Figure 1 is a vertical section of one form of such apparatus, and Fig. 2 is a plan ofthe arrangement .of the diaphragms hereinafter referred to.

The general natureof y,t1c iniprovement is K the production of a compact and portable apparatus for vnlcanizing various articles of india-rubber, gutta-percha, Ste., and more particularly where small articles are to be vulcanized.

A is a cylindrical stove, having its grate g and door for supplying coal, K, near the bot rlhe upper part of the stove is open to receive the lower part, B,of the chamber B C, which part B contains the water for generating t-he steam, and which extends down some distance from the chamber C, for the double purpose of giving suticient room for the water and also sufficient heating-surface to the same. The stove A has two lines, e and-j',

leading therefrom, and an additional door, d, to regula-te the heating and cooling, as herey inafter more fully explained.

C is the vulcanizing-chamber, and form a part of the steam generating chamber B, being all cast or formed in one, and making, in fact, a con tinuons sin gle chamber. By this method of construction, forming the steam-generating an'd vnlcanizing chamber all in one and from the same continuouspiecc otL metal, without joint or connection between them requiring the use of bolts, screws, or their equivalents, and packing to connect the parts together, all the expense and difficulty of making such a connection between the parts and keeping such a joint steam-tight is avoided and saved, and all danger of an y esca pc of steam by means of any such joint is removed, and the vulcanization is rendered more certain and perfect.

As vnlcnnzation is necessarily performed at a considerably high temperature ind under the lower diaphragm, c.

In the vulcanizng process a temperature a good deal of pressure, it is difficult where whole expense of construction is also much reduced. l l Between that part of the chamber B C which is above designated as the steam-generating,

part and that called the vulcanizing-cham'- ber are three annular plates or diaphragm's, a bc, which are thin metallic plates placed a little distance from each other and resting on r.

projections or supports adapted to receive them. These plates are each perforated with -three holes, and are so placed that the openl ings in one are covered Vby the plate above it,VK

Fig. 2, so that the steam will readily pass up through such openings, but the Water or spray will not pass up, but will be deflected back by them. The upper part of the chamber C is furnished with `a man hole plate, h, or cover` for the purpose of giving access to it in charging and removing' articles therefrom.

The pressure of steam is determined by a valve, g, or its equivalent, placed in any part ofthe chamber C, and the height of the water may be learned by a coekpz, which should be placed a little below the point at which rests uniform, or nearly so, of about 3000 is essential. To secure this some means of regulating the heat is necessary. i'

' In the use of a stove such as is above def4 scribed and is shown in Fig. 1, when the door d'and damper f are closed, and theilue c is open, the full force of the draft is directed up around the lower part of the chamber B C and into the Aline e, thus from the surface exposed heating the part B as rapidly as may be desired. When, however, by the thermometer, which should always be attached to the chamber, it is found that the heat is too great, and it is desired to reduce it, the-door d and the damper fare opened, and theiiueor damper c is shut. This causes a rush of cold air downward n pon the surface of the part Band into the ilue f, which rapidly cools it. Uooling auxiliaries are made use of when sudden cool-v ing is necessary by the use of water on the outer surface ot the chamber, applied with a sponge or in any convenient way.

The chamber B G may be made of a uni- What is claimed as new, andv is desired to form diameter, if for any reason desirable er be protectedcby Letters Patent, ismore convenient,'and its parts may be reduced l l. The general arrangement of the stove A in size without interfering with its operation, and steam-generating and vuicanizing chamand it'may be heated in connectionv with a ber B C, substantially as set forth. stove of dierent construction from that above 2. Constructing the steam-generating and described, or by 'any suitable heating process. vnloanizing chamber or chambers in one. or in '.lhecbnstruction of the steamgenerating and a continuous` chamber, substantially as def -vnlcnnizing chamber B U, forming them a'll `scribed. iii one'from the same piece of metal, without i joint or requiring connecting together (except diaphragms wb c in connection with the steamat the manhole or cover.) is, however, an esgenerating and vulcanizin g' chamber, substansental .feature of the apparat-ns, for the rea- 4tially as and for the purposes set forth. sons mentioned. y f l `The whole apparatus can be made very E. A. L. ROBERTS. compact and portable, and the chamber B C Witnesses: can be readily removed for cleanin g or 'cr any 1 S. D. LAW, other purpose. Gi W. 'PIALsEY-.

l The combination and arrangement of the A

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