US574719A - Friedrich drumm - Google Patents

Description

(No Model.) I '2 Sheets-Sheet l.

P. DRUMM.

I THERMOCAUTER. I No. 574,719. PatentedJanQ 5, 1897.

l/VVE/VIOR 3 Arron/VH5 (No Model.) 2'Sheets--She'et 2. F. DRUMM.

THBRMOGAUTER.

Patented Jan. 5, 1897.

No. 574,719 F4 1 A TTOIM'E Y3 INVENTOR WITNESSES:

UNITED ST TES PATENT,

FRIEDRICH DRUMM, or NEw YoRK, N. ,x.

THERMHOQAUTE'R.

SPEGIFICATIONforming part of Letters Patent No. 574,719, dated January 5,1897.

A V A, Application filed January 10, i896. 'Serlal No. 574,998. (No model.)

To all whorlt it may concern..- 3 Be it known thatl, FRIEDRICH DRUMM, 0

New York vcity, in the countyand State of New York, have invented a newandlmproved Thermocauter, of which the following is a f 1111,;

clear, and exact description. I

The object of the invention is toprovide a new and improved thermocauter which is simple anddurable in construction, very effective in operation, and arranged to permit the operator to conveniently heat-the cauter- 'izing-tool externally when starting the appawill be fully described hereinafter and then pointed out in the claims.

Reference is to behad to the accompanying drawings, forming a partof this specification, in which similar characters of referenceindicate corresponding parts in all the figures.

Figure l is a side elevation of .the improvement, showing the'auxiliary burner in position for heating the tool. Fig. 2 is a like view of the same with the auxiliary burner removed and the tool heated internally. Fig. 3 is a rear side elevation of part of the improvement,showing the means for disconnecting the auxiliary burner from the supply-pipe valve. Fig. 4 is a face view of part of the im provement, indicating the several positions.

of the burner. Fig. 5 is a sectional side elevation of the valve. Fig. 6 is a cross-section of the auxiliary burner on the line 6 6 of Fig. 1. Fig. 7 is a sectional side elevation of the point and adjacent part. Fig. 8 is a like View of the upper end of the gas-supply pipe and the combustion-shell. Fig. 9 is a sectional side elevation of the gas-generator, the auxiliary burner, and the supply-pipe, with the valve in position for connecting the generator with the auxiliary burner. Fig. 10 is a sectional plan view of the generator on the line 10 10 of Fig. 9. Fig. 11 is a sectional side elevation of part of the generator and supply-pipe,with the valve in position for connecting the generator and supply-pipe. Fig.

12 is a sectional side elevation of the point,

internal burner for the same, and the auxiliary burner; F,ig..;13 is asectional plan view of. the internal burner on tl1'eline'13 13 of Fig. 12.; and Fig. 14 is a reducedperspective view of the improvement, showing the auxiliary burner in action. v i

. The improved thermocauter is provided] with a suitably-constructed gas-generator A for generating the gas and heating the cauterizing tool; externally and internally, as hereinafter 1n ore fully described. I The generator A forms the handle for the instrument and is preferablyfilled in its lower portion withcotton or like loosematerial, saturated I I with benzene orlike.liquid for producing an inflammable'gas- The lower endofthe generatorA is connected by arubber tube B with air-bulbs C,.o'f the usual construction, to permit of forcing a continuous stream of air 79 through the generator and the saturated 1naterial to producethe desired inflammable gas in the upper portionof the generator A. The gas thus generated is passed from the upper end of thegenerator into a gas-supply pipe D,"supporting at its extreme upper end thecauterizing-tool E, made hollow and preferably of platinum or like material, the shape of the tool varying according to theintended use.

In the lower end 'of the supply-pipe D and next to the generator A is arranged a twoway valve F, adapted to connect and disconnect the generator A with and from the supplypipe D and connect and disconnect the gener- 8 5 ator A with and from an auxiliary burner G for externally heating the tool E in starting the apparatus.

The valve F is provided with a valve-plug F, formed with two ports or channels a and b, of which the port a extends diametrically and serves to establish communication between the generator A and the upper end ofthesupply -pipeD. (See Fig. 5.) The other port I) (see Fig. 9) is adapted to connect the 5 interior of the. generator A with a conical branch G, forming partof the lower end of the rigid pipe forming the auxiliary burner G, and this branch G is adapted to positively connect with the plug F, so as to turn the too latter from a closed position to the position shown in Figs. 5 and 9, and finally to the position shown in Fig. 2, to establish communication between the generator A and the upper end of the supply-pipe D, as shown in Fig. 5.

On the plug F is secured a stop F adapted to abut against two shoulders F and F on the casing for the valve F to limit the motion of the plug F, the latter being further provided at its outer end with a recess F, adapted to be engaged by a pin G formed on the branch G, (see Fig. 3,) so that when the said pin is in position then the operator in turning the burner G can impart a turning motion to the plug F by said pin G". The forward wall of the recess F is curved near its outer end, as is plainly illustrated in Fig. 3, so that when the operatorturns the auxiliary burner G into the uppermost position (shown in Fig. 5) then the pin F finally rests against the shoulder F to prevent a further movement of the plug F and the pin G On a further pushing on the burner G the pin Gr lights 01% the curved wall of the recess F, so that the branch G is moved out of engagement with the plug F.

On the extreme upper end of the pipe forming the auxiliary burner G is held a burner G preferably provided with a perforated tip G and a shell G surrounding the tube, as is plainly shown in Fig. 12. This shell G extends with its open end in close proximity to the e'auterizing-tool E at the time the auxiliary burner G is in the position illustrated in Fig. 1-'-that is, at the time it is desired to externally heat the cau'terizingtool E.

The internal burner for the eaut'erizing-tool E is preferably of the construction shown in detail in Figs. 7, S, and 12, said external burner being provided with a tube D, secured to the upper end of the supply-pipe D, and on the extreme upper end of this tube D is secured an attenuated tube D extending withinthecauterizing-tool E without touching the walls thereof. The tube D is surrounded by a return-pipe I), which in turn is inclosed within a shell D forming an outlet for the products of combustion, it being understood that the lower end of the 'pipe D is connected by an opening D' with the space between the shellD and the pipe D In the bottom of the shell D are arranged outwardly-extending openings D for carrying the products of combustion to the outer air.

The operation is as follows: In starting the apparatus the operator places the branch G of the auxiliary burner in engagement with the valve=piug F, as previously explained, thevalve-plu g then being in a closed position; that is, with its pin F resting against the shoulder F The operator now manipulates the air-bulb C, so as to generate a gas in the genera tor A, as previously explained, and then theoperator, having hold of the generator A with one hand, turns the auxiliary burner G with one finger of said hand, so as to bring the burner G in proper alineinent and close to the cauteri'zing-tool E, the pin F then standing in a central position; that is, between the shoulders F and F as plainly indicated in Fig. 1. The gas from the generator A now passes through the valve E into the branch G and the pipe of the auxiliary burner, to finally issue through the tube G into the shell G in which the inflammable gas is ignited. The flame thus produced is directed against the hollow eauterizing-tool E, so as to heat the latter externally, and when the tool has a red heat then the operator turns the auxiliary burner still further, so as to move the valveplug F into the position shown in Fig. 5-that is, to connect the generator A with the upper end of the supply-pipe D. A further pressure on the burner G disconnects the latter from the valve-plug F, owing to the pin G traveling on the curved wall of the recess F", as previously explained. Now by the operator keeping up the flow of air by manipulating the bulb C more gas is generated in the genera tor A, and this gas passing through the L1 valve F into the supply-pipe D finally issues through the attenuated tube D into the interior of the red-hot caut'e'rizing tool E, so that the gas is ignited and burned within the cauterizing-tool, and consequently the latter is heated to a white heat. of combustion of this internal burner pass through the pipe D and opening Dfinto the shell D and through the openings D to the outer air. Thus it will be seen that by the operator manipulating the bulb C the cauterizing-tool E can be kept at the desired teinperature for cauterizing purposes as long as desired.

It is understood that by the arrangement described the gas from the generator is util iz'ed both for externally heating the cauteriZi'ng-tool E when starting the apparatns and for supplying the internal burner of the cauterizing-tool .with the necessary amount of gas to keep the 'cauterizingtoolat the desired temperature during the operation.

Having thus fully described my invent-ion, I claim as new and desire to secure by Letters Patent-- v 1. A thermocauter, comprising ap'oint and a gas-generator, an auxiliary burner forheating the point arranged to be swung into and .out of operative position, 'a rigid gas connection between the auxiliary burner and the gas-generator, and a valve controlling said gas connection and controlled by the swinging of the auxiliary burner into and out of operative position, substantially as set forth.

2. 111 a thermocauter, the combination of a point adapted for use as a burner, a gas-generator, a rigid gas connection between the generator and the point, an auxiliary heating device for the burner arranged to be swung into and out of operative position, and a valve controlling the gas connection between the generator and the point and controlled by the swinging of said auxiliary burner into and The products out of operative position, substantially as set forth.

3. In a therinoca'uter, the combination of a gas-generator, a point adapted for use as a burner, a gas connection between the generator and the point, avalve-casing in the said connection, a valve mounted in the casing and controlling the flow of gas from the generator to the point, a rigid gas-pipe extending from the valve, passages formed in the valve adapted to communicate between said gas-pipe and the-gas-generator when the valve is turned to cut off the flow of gasfrom the generator to the point, and an auxiliary burner carried on said gas-pipe and arranged to direct a flame against the point when the-pipe stands i'none position, said pipe beingadapted when moved, to swing the burner out of operative position to turn the valve to cut off the flow of gas from the generator to said gas-pipe, and to open the communication between the gener-- ator and the point, substantially as set forth; 4. A thermocauter, comprising a gas-supply pipe, a hollow point supported thereon,

an attenuated tube forming the terminal of supply-pipe and extending into the'hollowof 1 said point, a return-pipe connected withthe hollow of thepoint and surrounding the supply-pipe and provided with perforations, and

a oasin g secured at one end to the burner and extending rearwardly therefrom, said casing being arranged to surround the ret urn-pipe and having its rear end' open substantially.

as set forth. v

I FRIEDRICH D M, WVitnesses: 1

HEo. G. HOSTER,

' NO .vM.- BITTER.

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