US955479A - Vulcanizer. - Google Patents

Description

G. A. SEALER.

VULGANIZER. APPLICATION FILED JUNE 15, 1907.

Patented Apr. 19, 1910 By @WMZ; 521022 IN VEN TOR 4, :TT0RNE1 y CLARENCE A. SEALER, 0F WA'UE'UN, WSCUNSIN.

VULGANEZEE.

Specification of Letters Patent.

Application filed June 15, 1907.

Patented Apr. 19, 119161 Serial No. 379,123.

To all whom it may concern:

Be it known that I, CLARENCE A. SEALER, a citizen of the United States, residin at Waupun, county of Fond du Lac, and tate of Wisconsin, have invented new and useful Improvements in Vulcanizers, of which the following is-a specification.

My invention relates to improvements in vulcanizers.

The object of my invention is to provide means for automatically regulating the heat through a thermostatic switch arranged to 'vary the resistance in the electrical circuit without interrupting the current.

In the following description reference is had to the accompanying drawings, in which- Figure 1 is a plan view of a vulcanizer embodying my invention with the concave face platev removed, showing the heating coils diagrammatically. Fig. 2 is a view of that end from which the thermostatic switch projects. Fig. 3 is a sectional view drawn on line ma2 of Fig. 1, and Fig. 4 is a detail view, in longitudinal section of one end portion of the vulcanizer.

Like parts are identified by the same reference characters throughout the several views.

The heating coils are inclosed within a casing, preferably having a flat surface 1 and a concave surface 2, the latter being formed with a removable wall or face plate which is secured to the bod of the casing by screws 3. The casing is a so preferably provided with lu 4 and 5 to facilitate clamping it to the tire and a handle 6, which may, if desired, be connected with one of the lugs as shown. The thermostatic switch 8 is connected with a binding post 9' and pro'ects along one side of the casing chamber wit its free end preferably extendin through an aperture 10 in the end wall of the chamber and normally contacting with a screw 11, which serves as an electrode, the switch 8 being arranged, when heated, to swing away from said electrode by reason of the unequal expansion of the material com osing the swltch. A heating coil 14 is a so located within the chamber of the casing, and wound upon a base 15, of insulatin material and covered with a body of heat lstributing and non-conducting material 16 such as asbestos cement. This coil is connected at one end with a binding post 18, to which a feed wire coil 14:. One end of the auxiliary coil is connected with the binding post 9, and the other end is connected with the coil 14 at 22, whereby, when the heat reaches a predetermined point, the switch 8 swings away from the electrode 11, and the current from the feed wire 19 then traverses the coil 14 to the point 22, when it follows the coil 21 to the binding post 9 and return wire 20, thus completing the circuit, but with the resistance greatly increased. The coil 21 is preferably formed 'of com aratively fine wire and the resistance is lncreased Suficiently to cause a material drop in tempera ture. When the temperature is reduced suificiently to permit the switch 8 to return to normal-position in contact with electrode 11, the current is shunted through the switch 8, thus cutting out the auxiliary coil 21.

Various modifications in the arrangement of the coils, or of the thermostatic switch, may be devised without departing from the scope of my invention. It will of course be recognized that the" particular location of the switch or of the electrode 11 are not essential. The'object of having the switch project through the wall of the casin and ocating the e ectrode 11 in an expose position, is to facilitate' the adjustment of the latter. The packin" 16, which surrounds the coils, serves to istribute the heat uniformly to all portions of the surface 1 and 2'and also prevents sudden changes of temperature within the-jcoils from immediately affecting the 1 vulcanizin surfaces.

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

1. A vulcanizer comprising the combinawithin said casing adapted to conduct a contmuously flowing current and means thermostatically controlled to automatically reg 106 tion of a casing, an electric heating device therein, erranged in series and connected with suitabie conductors, and a thermostatic switch Within the casing arranged to automatically shunt the current either through 5 or around one of said coils.

A vuicanizei, comprising the combination of a heating device consisting of piuraiity of resistance coiis adopted to @011- duct a continuously flowing cutrrent, connected with suitable conductors, and a thermostatic switch formed of conducting material, adapted to vary the resistance for a continuously flowing current in said heating device A /uicaiiiser comorisiiig the combination of casing, set 0; electrical conductors connected 'tiieiewitii a resistance member the casing, in circuit with said con- SAlZiiitI'j resistance member in and a thermostatic switch conflOW current through reference e2 m cc on A Iii. .tiizei" comprising the combinatiers of casing, a set of eiectrlcai conductors connected therewith, a set of resistance coils for a continuous current arranged in circuit Within the casing, a thermostatic switch secmced to the casing and having free end projecting; therefrom and an exterior adjustabie QiEC'tZQdE; operativeiy arranged with to said switch, and connected in said circuit between the coiis said switch being formed of conducting materiai arranged to bridge over one of said coils when in contact with the electrode in testimony whereof aitiz; 1:1;

in the aresence of two Witness GLAREKJ

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