US315241A - Vulcanizes - Google Patents

Description

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F. H. CHIDBSTBR. VULCANIZBR.

No. 315,241. Patented Apr. 7,1885.

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VULGANIZBR. Y

NO- 315,241- l Patented Apr. 7, 18785.'

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VULCANIZ'ER.

SPECIFICATION forming part of Letters Patent No. 315,241, dated April '1, 1885.

Application filed December 8. 1884. (No model.)

.To @ZZ whom, it may concern:

Beit known that I, FRANK H. CHIDnsTEn, a citizen of th-e United States, residing at Massillon, in the county of Stark and State of Ohio, have invented certain new and useful lImprovementsinVulcanizers, of which the following is a specication, reference being had therein to the accompanying drawings.

This invention relates to mechanism for vulcanizing, especially to the devices used by dentists for treating small quantities of inaterial, it relating more particularly to those parts of the mechanism by means of which the degree of heat is regulated, and alsothe time` of application thereof.

Figure I is a side View of an apparatus embodying myimprovements. Fig. 2 is a longitudinal section through the burner on a larger scale. Fig. 3 shows the needle-valve and its supporting-rod detached. Figs. 4 and 5 are. sectional views of the devices for regulatingv the escape of air from the'air-reservoir.

In the drawings I have shown a vapor-stove, which may be of any of the several styles now 1 known and used, in which employment is made ofavolume ofair underpressure for feeding the hydrocarbon liquid upward through the supply-tube of the burner.

It is not necessary to describe in detail all the parts of this portion of the mechanism.

A represents, generally, the reservoir which contains the hydrocarbon, and B the supplytube, from which the oil rises to the burner. At @there is an air-tube, through which air can be forced by means of a hand-bulb, C', or other equivalent mechanism, there being valves adapted to permit the ingress of the air when the pressure is great enough from the outside, and adapted also to prevent the escape ofthe air. With this mechanism thus generally referred to I combine devices by"`l means of which at any instant the pressure of g the air within the reservoir may be relievedfj;y

n the upward flow'ng of the oil. The means.`

D represents, generally, a clock mechanism, which, so far as the main operative parts thereof are concerned, may be of any common form-that is to say, it is only necessary that it should have means for marking regular intervals of time, together with adj ustablemechanism for bringing into operation the devices which relieve the reservoir of the air-pressure.

drawings as being provided with an adjustable tripper, E, which can come into engagement with a rod, and the latter moves a valve or cock that closes an aperture connected with the air-reservoir, and when the tripping device reaches said rod the valve is opened and the air is allowed to escape. The tripper can be set so as to be. brought into operation by the clock mechanism at any required moment. By means ofthese devices the flow ofthe hydrocarbon liquid to the burner can be instantly stopped, so that the generation of the heat will be broken at the instant required. I have also shown in the drawings a mechanism by means of which thesteaungenerated in the vulcanizeinprcper can be utilized to regulate th needle-orifice in the burner, the pressure of the steam varying, as is well known, in proportion to the heat generated below the vnlamount of vapor which escapes at the y,

canizer, and therefore in proportion to the amount of vapor which escapes at the needley orifice.

In my previous patent, No. 300,953, dated June 24, 1884, I have shown a mechanism for regulating the flow of the vapor from a vulcanizer-burner; but I have found that under some circumstances one of the character herein shown is superior. In the present case the steam is allowed to pass through a duct, F, into a chamber, G, having a diaphragm, G', against which the steam can /be-ar. To this diaphragm there is secured the valve-rod H, the latter being provided with a needle-point at h, which passes through andtits the orifice at which the vapor escapes. This orice is formed in an adj ustable piece or block, I, which is screw-threaded and ts in the upper end of the burner-tube I. The vapor passes to the interior of this latter`tubeI at a point immediately below the adjustable part I, through a IOO 6c l I have shown the clock mechanism in the tube, J, preferably constituting a part of the support for the upper portion, J2, which is iitted to the top of the supply-tube B, that rises from the reservoir below. The valve-rod His not integral with the needle-point h. Thelatter consists of a conical part, h, and a ball or enlargement, h, at the lower end, which is fitted in a socket, h2, in the upper end of the valve-rod. When the point is thus connected with the valve-rod, there is an assurance that it shall tightly close the orifice regardless of the position of the valve-rod. It is very difficult to secure the latter to the diaphragm in such manner as to have it force the needle properly into the orifice under all circumstances; but this Ydifiiculty is overcome by interposing a joint between the needle-tip and the diaphragm adapted to operate, as does that shown. However, I do not wish to be limited to Vall of the details in this respectn-that is to say, to the diaphragm or the adjustable piece I or the other parts set forth-inasmuch as this part of the invention is applicable to the closing of the needle-orifice when the other parts are considerably varied.

I have above called attention, generally, to the air-releasing mechanism, and willdcscribe the details of the construction shown.

E E2 represent a stop-cock, the tube E of which is inserted into the case of the clock D and secured thereto by nuts d, fitting threads at d, or by other suitable means. The rotary part Ez is provided with ari ght-angled passageway adapted to register with the passage e, the latter being connected by a hose, E, with the interior of the air-reservoir.

e2 is a draw-rod situated in the aperture in the tubular part E. adapted to t into a socket at e in the part El, and when said inner endis seated in said socket the part E2 is prevented from rotating. A spring, e4, is so arranged that it tends to force the rod el into said socket at e6. At e5 there is a spring connected with the revolving part E2, this spring tending to draw said part E2 into the position shown in Fig. eL-that is, into the position which brings the aperture e to register with the aperture e. At e3 the draw-rod is bent or provided with astud, projection, or lug, with which l[he tripper E can engage.

It is at its inner end- The latter at the time set draws the rod out from the socket e6, whereupon spring e5 compels the part E2 to takea quarter-turn, bringing the ducts e e into conjunction. After this occurs the air under pressurein the reservoir will escape through the tube E4 and said ducts e e. As said above, these parts may be varied to a large extent without departing from the spirit of the invention.

What I claim isl. In a vulcanizer, the combination of ahydrocarbon-reservoi r, an air-reservoir adjacent thereto, means, substantially as set forth, for allowing the escape of the air from said reservoir, and a clock-work, constructed and arranged substantially as set forth, to-operate the said air-releasing devices.

2. rlhe combination of the steam-generator, the chamber provided with a diaphragm or partition, the duct communicating with the steam-generator and With the chamber upon one side of said diaphragm or partition, and an adjustable bar or block provided with a needle-orifice, substantially as described.

3. rIhe combination, with theneedle-point and the part having the needle-orifice, of a valve-rod united to the point by a flexible joint, substantially as set forth.

4. rlhe combination, with the air-reservoir and the devices which store air therein under pressure, of the timing mechanism, the valve or stop-cock attached to the timing mechanism, the escape-duct communicating with the air-reservoir and with the aperture at or through said valve or stop-cock, and tripping devices, substantially as described, operated by the clock to open said valve or stop-cock, as set forth.

V5. The combination, with the air-reservoir, of a timing mechanism and an air-escape duct, a stop-cock or valve for said duct, and an intermittingly-moving rod operated by the timing mechanism to release said valve or stopcock, substantially as set forth.

In testimony whereofI affix my signature in presence of two witnesses.

FRANK H. CHIDESTER.

Vitnesses:

S. J. HARMOUNT, Isaac M. MAY.

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