US484182A - Mark w dewey - Google Patents

Description

(No Model.)

M. W. DEWEY. METHOD OF ELECTRICAL REFRIGERATION.

No. 484,182. 7 Patented Oct. 11, 1892.

UNITED STATES PATENT OFFICE.

MARK \V. DEWEY, OF SYRACUSE, NEW YORK, ASSIGNOP; TO THE DEWEY CORPORATION, OF SAME PLACE.

METHOD OF ELECTRICAL REFRIGERATION.

SPECIFICATION forming part of Letters Patent No. 484,182, dated October 11, 1892. Application filed February 3, 1896. Serial No. 339,001. (No model.)

To all whom it may concern:

Be it known that 1, MARK W. DEWEY, of Syracuse, in the county of Onondaga, in the State of New York, have invented new and useful Improvements in Methods of Electric Refrigeration, (Case No. 50,) of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

My invention relates to a new and improved method for producing cold or removing heat to cool or change the temperature in desired localities and is preferably similar in some respects to my methods of electric refrigeration set forth in Letters Patent No. 413,136, dated October 15, 1889, and Letters Patent No. 420,641, dated February 4,1890.

The object of my present invention is to distribute cold or heat produced by electricity or other suitable means in a certain 10- cality to or through one or more other localities remote from that where the cold is produced without circulating a ponderable medium.

' The object of my invention also is to efl'ect the distribution above referred to by passing a suitable electric current through a conductor or circuit connecting the said localities.

My invention is designed to be used for cooling purposes of all kinds or for eifecting any desired change of temperature.

My invention consists in cooling or lowering the temperature in a portion of a suitable electric conductor and passing an electric current through said conductor to increase the conduction of heat from the warmer portion of the conductor to the cooled portion.

My invention consists, also, in changing the temperature in a portion of,a suitable electric conductor and passing an electric current through said conductor to absorb heat from the warmer portion of the conductor and to deposit it in the cooler portion.

My invention consists, further and more specifically, in locating a portion of an electric conductor in a locality wherein the term erature is to be changed, electrically changing the temperature of the conductor at one or more points, and passing an electric current through the conductor to remove the temperature produced at the said point or .perature.

points to the locality wherein'the temperature is to be changed.

My'invention consists, still further,in certain combinations of steps of the method, as is hereinafter described, andpointed out in the claims.

, In the accompanying drawings, Figure 1 represents a general view of apparatus for accomplishing my method or for accomplishseveral parts of an electric conductor or circuit exposed to the influence of a liquid medium that is agitated and has a changed temperature.

Referring specifically to, the drawings, A in Fig. 1 represents a section of a receptacle or refrigeratory to be cooled, and B is the electric conductor or circuit for distributing and conducting heat from one portion of the circuit to another .and connects the receptacle A with the localities X and X to be cooled or changed in temperature. The conductor is preferably given a suitable tortuous shape at the looalities'X and X in order to concentrate or increase the effect at those places, as the changing eifec't depends largely upon the exposed surface area of the conductor atsaid places or localities. A tortuous shape is given to the conductor at X by giving it a serpentine form and .at X by coiling the same. The latterlocality is indicated more particularly by a line d, inclosiug the coil. The line (1 indicates the walls of a receptacle or room, as the case may be, which I prefer to isolate from the external temperature in any suitable manner to prevent the conduction of heat therethrough. The portions of the conductor B at the localities X and X may be arranged in any desired manner or relation therein.

B is the source of electricity for the circuit B and may be either a battery or dynaan adjustable resistance. The conductor or circuit B is composed of a metal in which an electric current will reduce differences of tom- 1 preferably employ for this purpose a conductor or circuit of copper.

The receptacle A in Fig. l is constructed of non-heat-conduciing material, as wood.

The apparatus for cooling or heating the mo, and B" is a suitable current-regulator, as.

ing certain steps in the same, and Fig. 2 shows I portion or portions 1) of the conductorl3 within the receptacle may be the same or similar to that described and shown in my prior patents above referred to, or any other suit-able apparatus, and for that reason I shall describe the same briefly. t

O is an electric circuit having parts adapted to be cooled and other parts adapted to,be heated by the current from a suitable source of electricity D. The device shown 1n the drawings for accomplishing the change of temperature in the parts of the circuit Q 1s, for the sake of simplicity, an ordinary thermopile; but I,do not limit myself to this device, as before mentioned. A tricity D is connected to said thermopile, so that the parts cooled will be those located within the receptacle or reservoir and the parts heated will be those located outside of the receptacle.

C is the adjustable resistance in the circuit C to regulate the current,and O" isa currentreverser to reverse the location of the cooled and heated parts for the purpose of heating the portion or portions of the conductor B exposed to the influence of the said parts. Said current-reverser may be dispensed with when it is not desired to eifect either or both operations with the same apparatus.

The operation of the apparatus described is brieflyas follows: The thermopile removes heat from or to the interior of the receptacle, thus producing a change of temperature in the portion of the conductor B Within the receptacle, and the electric current flowing through the latter conductor equalizes the temperature therein or absorbs the heat from the warm portion or portions of the circuit, conducts or conveys the same, and deposits or disengages the heatin a cooler portion or portions of the circuit from which it is radiated, diffused, or dissipated.

Referring to Fig. 2, corresponding letters of reference indicate corresponding parts.

The circuit B in this case is exposed at two different points to the interior of a receptacle or refrigeratory, preferably lined with metal A, and containing a suitable medium, which is agitated by an agitator or stirring-helix H. The parts I) of the circuit B within the receptacle are insulated from the medium to prevent short-circuiting of the current by insulation b, and may be covered with suitable heat-non-conducting material between the said localities to prevent loss.

e is the inlet or nozzle for admitting the solution, and e is the outlet for removing the solution from the receptacle. In the latter case or in Fig. 2 the electric current is derived from parallel supply-conductors S and S.

It will be evident that many changes in the construction of the apparatus and relative arraugeme ntof parts may be resorted to, and also variations may be made in the method without departing from the spirit and scope of my invention, and I would have it understood that I do not limit myself to the par- The source of elec-' ticular construction, arrangement of parts shown, or to the precise or exact method herein described.

Having described my invention, What I claim as new, and desire to secure by Letters Patent, is 1. The method of electrically cooling, consistingin cooling or lowering the temperature in a portion of a suitable electric conductor and passing an electric current through said conductor to increase the conduction of heat from the warmer portion of the conductor to the cooled portion.

2. The method of electrically cooling, consisting in establishing an electric circuit, loeating a portion of said circuit in a locality to be cooled, locating another portion in a suitable refrigeratory and to be cooled by the latter, and passing an electric current through the circuit to absorb heat from the portion of the circuit in the said locality to be cooled and to deposit the heat absorbed in the portion of the circuit in the refrigeratory.

3. The method of electrically cooling, consisting in establishing an electric circuit, 10- cating a portion of said circuit in a locality to be cooled, locating another portion in a receptacle containing a cooled medium, insulatin g the latter portion of the circuit from said medium, and passing an electric current through the circuit to absorb heat from the portion of the circuit in the said locality to be cooled and to deposit the heat absorbed in the portion of the circuit in the receptacle.

4. The method of electrically cooling, consisting in establishing an electric circuit, 10- eating a portion of said circuit in a locality to be cooled, locating another portion in a receptacle containing a cooled medium, agitating said medium, insulating the latter portion of the circuit from said medium, and passing an electric current through the circuit to absorb heat from the portion of the circuit in the said locality to be cooled and to deposit the heat absorbed in the portion of the circuit in the receptacle.

5. The method of electrically changing temperature, consisting in cooling or heating a port on of a suitable electric conductor and passing an electric current through said conductor to equalize the temperature thereof.

6. The method of electrically changing temperature, consisting in locating a portion of an electric conductor in a locality wLerein the temperature is to be changed, changing the temperature of the conductor at one or more po1nts,and passingan electric current through the conductor to remove the temperature produced at the said pointor points to the locality wherein the temperature is to be changed.

7. The method of electrically changing temperature, consisting in locating a portion of an electric conductor in a locality wherein the temperature is to be changed, electrically changlng the temperature of the conductor at one or more points, and passing an electric current through the conductor to remove the temperature produced at the said point or the circuit in the said locality to be cooled points to the locality wherein the temperature and to deposit the heat absorbed in the peris to be changed. tion of the circuit in the refrigerator-y.

8. The method of electrically cooling, con- In testimonywhereoflhavehereuntosigned 5 sisting in establishing an electric circuit, 10- my name this 31st day of January, 1890.-

cating a portion of said circuit in a localityto be cooled, locating another portion in an elec- MARK DEWEY tric refrigeratory and to be cooled by the lat-' Witnesses: ter, and passing an electric current through '0. L. BENDIXON, 10 the circuit to absorb heat from-the portion of C; H. DUELL.

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