Title:
Electrotherapeutic apparatus
United States Patent 2460707


Abstract:
This invention relates to electrotherapeutic apparatus, and to methods of applying electrical, radioactive, and other radiant phenomena therapeutically. The invention is primarily concerned with the use. of high potential, high frequency electricity though not necessarily limited thereto,...



Inventors:
Moray, Thomas H.
Application Number:
US48511243A
Publication Date:
02/01/1949
Filing Date:
04/30/1943
Assignee:
Moray, Thomas H.
Primary Class:
Other Classes:
361/232, 607/3
International Classes:
A61N1/00; A61N5/00
View Patent Images:
US Patent References:
2192638Electrical therapeutic machine1940-03-05
2126070Electrotherapy1938-08-09
2073428Electric high-tension apparatus, particularly for medical purposes1937-03-09
2010018Excess-voltage protective device1935-08-06
1655783Electrode for the combined therapeutic application of high-frequency current and of ultra-violet radiation1928-01-10
1590930Ultra-violet electrode1926-06-29
1466777Radioactive vacuum tube1923-09-04
1193018N/A1916-08-01
1156317N/A1915-10-12
0950842N/A1910-03-01
0765470N/A1904-07-19
0647687N/A1900-04-17
0628351N/A1899-07-04



Description:

This invention relates to electrotherapeutic apparatus, and to methods of applying electrical, radioactive, and other radiant phenomena therapeutically.

The invention is primarily concerned with the use. of high potential, high frequency electricity though not necessarily limited thereto, in conjunction with radioactive and other types of electronio and radiation phenomena, for therapeutic purposes.

Among the objects of the invention are the following: First.-To render highly effective, from a therapeutic standpoint, radioactive and other types of electronic and radiation phenomena, and, likewise, to render highly effective, from a therapeutic standpoint, high potential, high frequency electricity.

Second.-To augment the therapeutic effect of radioactive and other types of electronic and radiation phenomena by the conjoint use of high potential, high frequency electricity, and, conversely, to augment the therapeutic effect of high frequency, high potential electricity by the conjoint use of radioactive and other types of electronic and radiation phenomena.

Third.-To accomplish the above without danger of burning or of otherwise harming the patient.

Fourth.-To provide apparatus for accomplishing the above, which is relatively simple in construction and operation and relatively inexpensive to produce and operate.

Fifth.-To provide novel electronic and radioactive devices especially adapted for use in conjunction with high potential, high frequency electrical therapy.

I have found that, by enveloping a patient in a high potential, high frequency electrical field in such a manner that no closed circuit is completed through his body, radioactive and other electronic and radiation phenomena can be used therapeutically with considerably greater effectiveness than if used alone. The exact reason for this is not known, nor is it known definitely which, the electric field or the radioactive phenomena, acts upon the other to produce the advantageous results. It is thought, however, that the electric field, permeating the body of the patient as it does, attracts the radioactive emanations or radiations and enables them to penetrate considerably deeper into the tissues and vital organs of the patient than would otherwise be the case. In any event, remarkable therapeutic results have been achieved by use of the invention in the treatment of malignant tumors, arthritis, sinus infections, and various other diseased conditions; The invention contemplates the use,, in therapeutics, of high potential, high frequency electricity to produce diversified forms of radiant energy, such forms being those which have been found best suited, individually, to benefit various human ailments. In accomplishing this purpose, several special discharge tubes have. been developed. to serve, as treatment electrodes, by means of which correspondingly different curative results are obtained. Throughout the practice of the invention, a:prime consideration is that only one terminal of any particular circuit-shall be in contact with a patient's body at one time, so there will be no flow of current through a closed circuit of which the patient's body is a part. Such a terminal, too, is usually non-heat producing, so there is no danger of burning. In cases where there is a tendency for a tube to produce X-rays or other injurious rays, these are filtered out.

The present application constitutes a continuation in part of a copending application filed? by me November 15, 1940, which bears Serial No. 365,798 and is entitled "Method of and device for the therapeutic application of electric currents and rays," and which has now become abandoned.

In the accompanying drawings, which illustrate several embodiments of apparatus preferred for carrying the method of the invention into practice: Fig. 1 represents a wiring diagram of a preferred embodiment of apparatus for carrying out the method of the invention in general therapeutic work, several independent treatment stations being provided; Fig. 2, a top plan view of the novel corona regulator of Fig. 1, employed in the circuit to control and adjust the current and as a governor to safeguard the transformer; Fig. 3, a vertical section taken on the line 3-3, Fig. 2; 45 Fig. 4, a vertical section taken centrally through one novel type of discharge tube used as a treatment electrode in the apparatus of Fig. 1; Fig. 5, a horizontal section taken on the line 5-5, Fig. 4; Fig. 6, a vertical section taken centrally through another novel type of discharge tube used as a treatment electrode in the apparatus of Fig. 1; Fig. 7, a horizontal section taken on the line 7-7, Fig. 6; Fig. 8, a vertical section taken centrally through a novel discharge tube used as a treating device in the apparatus of Fig. 1; Fig. 9, a horizontal section taken on the line 9-9, Fig. 8; Fig. 10, a fragmentary vertical section taken on the line 10-10, Figs. 8 and 9; Fig. 11, a fragmentary view in vertical section, and drawn to a reduced scale, of a tub bath capable of use as a treatment station in the apparatus of Fig. 1; Fig. 12, a view similar to that of Fig. 11, but showing a shower or vapor bath arrangement for the same purpose; Fig. 13, a wiring diagram similar to that illustrated in Fig. 1, but fragmentary in nature, and of a somewhat different embodiment of apparatus; Fig. 14, an elevation, partly in central vertical section, of a novel tube used in the apparatus of Fig. 13 in place of the corona regulator of Figs. 2 and 3; Fig. 15, a top plan view, partly in horizontal section on the line 15-15, Fig. 14, of the tube of Fig. 14; Fig. 16, a vertical section of another novel tube which may be used in place of the tube of Figs. 14 and 15; Fig. 17, a vertical section taken on the line 17-17 of Fig. 16; Fig. 18, a top plan view of still another novel tube which may be used in place of the tubes of Figs. 14 and 15 and of Figs. 16 and 17; and Fig. 19, a vertical section taken on the line 19-19 of Fig. 18.

In accordance with the invention, provision is made for enveloping the patient in a high potential and, in certain instances, a high frequency electric field, and for applying to the patient, while so enveloped in the electric field, radiations and emanations having therapeutic value.

The apparatus of Fig. 1 is capable of administering various specific kinds of treatment, pursuant to the invention, at the several treatment stations provided. The treatment stations are indicated A, B, C, D, and E, respectively.

For supplying the high potential electric field, a suitable transformer is employed. This may be of any type capable of delivering high potential electricity, say from 10,000 to 30,000 volts. It is preferred, however, to utilize a conventional double magnetic circuit type of transformer, indicated at 10 in Fig. 1, having adjustable, laminated, magnetic shunts (not shown), the transformer being connected across an ordinary power line II charged with the customary 115 v. The output lines 12 from this transformer advantageously extend to the treatment stations A and B, respectively. The first secondary of the transformer 10 is preferably direct connected to the second secondary thereof. It is noted that this high potential electricity may be applied, without causing injury, direct to a patient who is not grounded. However, in order to safeguard the transformer 10 from damage by sparking across its output terminals, and to render the high potential electricity more suitable for therapeutic purposes, which is believed to include the automatic changing of the frequency to an extent which depends upon electrical characteristics of the patient's body, a governor or control device 14 is shunted across the leads 12.

This governor or control device 14 is a sparking condenser of high capacity embodying a multitude of spark gaps. A preferred embodiment of this governor or control device 14 is illustrated in detail in Figs. 2 and 3.

As illustrated, the device comprises a cylindrical, electrically conductive plate 15 surrounded by a cylindrical dielectric 16. An outer cylindrical and electrically conductive element 17 surrounds the dielectric 16 exteriorly. It is provided with a multitude (for example, 250) of inwardly extending prongs I la, which are advantageously formed by stamping out, and inturning, triangular portions of the electrically conductive element IT. The internal plate 15 preferably contacts the interior surface of the dielectric 16, but, in any event, should lie closely adjacent thereto. Likewise, the tips of the prongs 17a preferably contact the outer surface of the dielectric. The several elements are advantageously mounted in a plug-in base 14a, which is adapted to mate with a suitable receiving socket (not shown) carrying the required electrical connections. The internal plate 15 connects with one of the electric lines 12, while the external element 17 connects with the other electric line 12, as shown diagrammatically in Fig. 1.

It is preferable that the dielectric 16 be in the form of a closed tube or envelope, as shown, and be exhausted to vacuum condition. The multitude of sparking prongs I Ta product a brush discharge.

Where the dielectric 16 is not a closed tube or envelope, it is preferred that it be of quartz.

The treatment station A is a discharge tube of a novel type, exemplified by the tubes illustrated in detail in Figs. 4 and 5 and Figs. 6 and 7. Either tube is plugged into the circuit of Fig. 1 at a suitably provided, single-terminal outlet. High potential electricity is, therefore, fed directly into the tube, which serves as an electrode. The tube also embodies radioactive material, which supplies radioactive emanations to the patient simultaneously with the electrical discharge.

As illustrated in Figs. 4 and 5, the tube or electrode may comprise an electrically conductive discharge element 20, having a supporting stem 20a and a major discharge cap or head 20b, which is preferably in the form of a thin, convex-concave plate. The head 20b may be spot welded to the end of the stem 20a.

The discharge element 20 is enclosed within a tube 21 of dielectric material, preferably glass, the stem 20a being fixed in the fused tongue portion 2 la of the tube. The tube or shell 21 is fitted into an insulating base 22, provided with a single plug-in terminal 23, and an electrical connector 24 extends from the terminal 23 to the stem 20a.

The inside surfaces of the side walls of the tube or shell 2 are coated with a radioactive material, as at 25. The coating is conveniently made from uranium salts or powdered carnotite or other radioactive ore. The ends of the tube or shell are left uncoated.

Air is evacuated from the tube 21, and a small quantity of mercury introduced. The mercury is preferably triple-distilled to insure great purity. It is preferred that argon or like inert gas be also introduced.

Since the tube just described is plugged into the circuit of Fig. 1, the discharge element or cathode 20 is charged with high potential electricity, and, in its capacity of a treatment station in the apparatus of Fig. 1, serves as an electrode to similarly charge the patient. The patient is insulated from the ground, and the tube is applied directly to the afflicted part of his body, preferably in close contact with the body.

Because of the construction of the tube, radiation of a radioactive nature is also directed against the patient through the uncoated top end of the tube. This radiation has been found to differ somewhat from the radioactive emanations discharging from the side walls of the tube, and is thought to comprise rays lying close to X-rays on the radiation spectrum. These rays appear to have a definite healing value, and to lack the injurious nature of X-rays. Where a predominantly radioactive emanation treatment is desired, the side walls of the tube are placed against the body of the patient.

Best results are obtained when the discharge element or cathode 20 is made of an alloy metal compounded from copper, lead, sulphur, and, if desired, aluminum. The relative percentages of the several ingredients may vary considerably, but a satisfactory mixture comprises 5.0% copper, 55.0% lead, 30.0% sulphur, and 10.0% aluminum. Should aluminum not be used, the difference may be made up by additional copper.

In preparing the alloy, the copper and aluminum are heated to a molten state, after which the sulphur is added while stirring the mixture.

After cooling, the mass is again melted, and the lead, in a molten state, is mixed with it, the molten mass being thoroughly stirred. This new mass is then cooled, being later reheated, and, while hot, rolled to make it ductile, so it can be shaped into the desired forms.

The discharge tube or electrode of Figs. 6 and 7 is similar to that of Figs. 4 and 5, having an enclosing tube or shell 26 which is evacuated. A cathode discharge element 27 is positioned within the shell, being fixed in the tongue portion 26a.

A conductor 28 connects the stem 27a of the element 27 with a plug-in terminal 29, which extends outwardly of the base 30. The cap or head 27b of the element 27 differs from the cap or head 20b of the electrode of Figs. 4 and 5, in that it is spherical in form and hollow. It has an opening 31 formed at its top, contiguous with the top inside surface of the tube 26. A quantity 32 of radioactive material, which may be the same as used for the coating 25 of the electrode of Figs. 4 and 5, is introduced into the tube or shell 26, along with a relatively small quantity of mercury, before the tube is sealed tight. Such material 32 is preferably powdered or granulated, and is shaken into the hollow of the head 27b through the opening 31 before any given treatment is commenced. The mercury is provided primarily as a getter, and does no harm if shaken into the head 27b along with the radioactive substance. The mercury also tends to produce a vapor in the tube, which aids in the operation thereof. As in the case of the electrode tube of Figs. 4 and 5, this tube may have a radioactive coating 33 covering the inner surfaces of its side walls.

The treatment station B of Fig. 1 differs from the treatment station A only in the fact that a condenser 34 is interposed in the electric supply line 12.

The treatment station C of Fig. 1 differs from the stations A and B only in the fact that the high potential electricity is supplied from the supply line 12 through an inductance 35.

The treatment station D utilizes a germicidal discharge tube, a preferred form of which is illustrated in detail in Figs. 8, 9, and 10. The high potential electricity is taken by induction from the particular supply line 12 concerned. For this purpose, an induction coil 36 is provided, tapping the line 12 at 37. A pair of leads 38 from an ordinary 115 v. supply source extend to a plug-in socket connection for the germicidal tube, one of the leads passing through a glass tube 36a, Fig. 1, which is disposed within and extends along the length of the induction coil 36. Thus, high potential electricity is impressed, by induction, upon the ordinary current flowing through the particular lead 38 concerned.

The germicidal discharge tube of Figs. 8, 9, and 10 has a pair of discharge terminals 40 and 41, respectively, positioned in an evacuated tube or envelope 42, and electrically connected with plugin terminals 40-1 and 41-1, respectively, by means of stems 40a and 4 a, respectively. The tube or envelope 42 and plug-in terminals are mounted in a conventional base 43. It is preferred that insulating material 44, such as a ceramic sleeve, cover the major portions of the stems 40a and 41a. A piece of lithium metal 45, see particularly Fig. 10, is advantageously secured to the stem 40a adjacent the discharge terminal 40 to act as a getter. It may, however, be placed at any other convenient location in the tube. It is preferred that the discharge terminals 40 and 41 be formed of the special alloy previously described. Argon or other suitable inert gas is preferably injected into the tube or envelope 42, 20 as is, also, a small quantity of mercury. The mercury, by vaporizing, aids electrical arcing between the discharge terminals. As will be noted, the high potential electricity induced in the one lead 38 will manifest at the upper discharge terminal 40, and will charge the patient simultaneously with the discharge into his body of germicidal rays from the tube.

The treatment station E embodies the tube of Figs. 8, 9, and 10, as above described, but impresses the high potential electricity directly on the patient instead of passing it first through the tube. For this purpose, a discharge device 50, in the form of a soft, flexible pad in which a coil 50-1 is embedded, taps one of the high potential electric lines 12. This pad 50 is wrapped around the patient's body adjacent the afflicted portion thereof, thus charging the patient. Any other electrode capable of charging the patient with high potential electricity may be used in place of the pad 50. The germicidal tube has its terminals 40-1 and 41-1 plugged into a suitable plug-in socket connected to leads 52 which extend to an ordinary 115 v. source of supply. The high potential electricity with which the patient is charged is induced into the germicidal tube, thereby further activitating the discharge therefrom.

A certain beneficial discharge from this germicidal tube will be had by induced activation alone, it being unnecessary, in such instances, to plug the tube into the 115 v. line.

Other types of germicidal and discharge tubes may be used in place of the tube of Figs. 8, 9, and 10, as, for instance, the well known infra-red and 65 ultra-violet lamps, to produce results surpassing those ordinarily attained by the use of such infrared or ultra-violet lamps apart from the apparatus of the invention.

It should be remembered that the patient is insulated from the ground while being treated at any of the treatment stations of the invention.

Figs. 11 and 12 show how a patient is treated, pursuant to the invention, while immersed in an electrically conductive fluid bath. In Fig. 11, a bath tub 53 is insulated from the ground by a layer of insulation 54. A treatment electrode of the type shown in any of the figure groups 4 and 5, 6 and 7, and 8, 9, anid 10 is positioned. to charge the fluid of the bath with high potential electricity, as well as to discharge healing radiations and emanations into the patient; :-The particular electrode illustrated is diagrammatic in form and is designated-55. It may be- connected into the circuit of Fig. 1 as shown at:-any of: the treatment stations A, B, C,. and D. In. Fig. 12, a shower or vapor stall 56.is :insulated: from the ground by a layer of insulation 57. A plurality of treatment electrodes areý designated $58, respectively. These correspond to the treatment electrode 55 of Fig. 11. A water spray or vapor, such as steam, may be admitted to the. stalls 56 in any well known manner (not. shown);, thus enveloping the patient during treatment.

Another embodiment of apparatus, pursuant to the invention, is illustrated diagrammatically by the wiring diagram of: Fig. 13. While no: treatment stations are shown, those provided are identical with the several treatment stations designated A, B, C, D, and E in Fig. 1. The distinction in this embodiment of apparatus resides in the fact that a special generator of :high; frequency electricity is provided in theý system.

A transformer 60 has its input terminals connected across an ordinary 115 v. electric, power line 61. Electrical conductors 62 and 63 lead from the respective output terminals of the transformer to a high frequency generator of the Oudin coil type, indicated generally at 64, a variable condenser 65 being interposed: in the line 62, and the circuit being grounded at 66. Output conductors 67 and 68, leading fromithe; high frequency generator G4, provide connections; for the several treatment stations in the same manner as illustrated in Fig. 1.

The transformer 60 may be any ordinary high voltage type. A governor or control device 69 is shunted across the conductors:62 and 63.

In the illustrated instance, the. governor or control device 69 preferably takes the form of- a vacuum tube, having the construction shown. by Figs. 14 and 15, Figs. 16 and 17, or Figs. 18 and 19. These tubes all possess high capacity,: and include elements effecting a brush discharge.

They serve, as does the device 14 of Figs. 2 and:3.

The tube of Figs. 14 and 15 embodies an::outer shell or envelope 70 of insulating-material: such as glass, a plastic, or fiber coated with shellac.

Inside the shell 70 is a bi-cylindrical element: 71 formed of electrically conductive material. Separating element 71 from the enclosing shell 70 are spacers 12 made of rubber, Bakelite, or other insulating material. Inter-fittingý with the element 71 is a second electrically conductive, bicylindrical element 73, the two elements being separated by a dielectric 74. Inwardly of the element 73, and separated therefrom by: a dielectric 75, is a corrugated, cylindrical element 76. The shell or envelope 70 is secured- int an insulating base 70-1, provided with plug-in terminals. One of the terminals, designated 77,. is electrically connected with the element 71, while another, designated 78, is electrically connected with the corrugated element 76. These two terminals connect with the conductors 62 and 63, as illustrated in Fig. 13, and the brush discharge takes place at element 76.

Under certain circumstances, it is desirable that the outer shell 70 be made of quartz glass, and' that a filament 79 be provided, the filament being heated by connection, through plug-in terminals 4S 80Land-8,witith a :source of low: voltage heating current (not shown). Plug-in- terminal 82, which: is- electrically connected with element 7T may be used instead of or in connection- with the terminal 77, since element 13 acts in a manner similar to element 7'1. A getter 83 of suitable material, and an insulating and reflecting shield 84 may be- provided, as shown. -While the tube may have; either a high or a low vacuum condio1 tion, or may be filled with an inert gas, I have also :found: it:,advantageous tot fill the tube with a moist vapor. The tube acts as an oscillator for electric currents, and has an, enormous capacity, a capacity many times that of a condenser 1:5 of approximately equal size.

The.tube of Figs. 16 and 17 comprises an outer shell or envelope 85: which may be made of metal, glass, or fused quartz. This shell is mounted in an insulating base:-86. Inside the shell'85 is-a metalplate 87,. and, spaced apart therefrom, a corrugated metal plate 88. A plug-in terminal 89, which extends from the base, is electrically connected with the plate 81, and a second plug-in terminal. 90: is electrically connected with the corrugated: plate 88. These terminals are adapted to connect, through a suitable socket, with: the electrical conductors 62 and 63 of Fig. 13.

Under certain: conditions of use, it is desirable to have-other elements in the tube. These are provided, and may be utilized or not as occasion warrants. A filament 9 i is disposed- between the plates 87.and 88. It is-electrically connected with the two plug-in terminals 92 and 93, which are adapted:to be connected to a source of low voltage heating, current (not shown). A slit screen, comprising shields-;94 and '95, with apertures 98 extending:therethrough, is disposed adjacent that side of corrugated plate 88 which is remote from plate 87.. The apertures-96 are in alignment with a0 each other, and the shields 94 and 95 -are made of lead or other material capable of screening off X-rays. Between shields 94 and 95 is a sheet 97' of material which, is readily permeable to X-rays. Within the shell: 85 there is also mounted; a shell or envelope: 98 of glass, quartz glass, or similar material, having a portion 98a, which is ground like;-a lens and directed toward the slit screen. This shell 98'really constitutes a tube within a tube. A filament or cathode 99, comprising: electrically conductive legs 99a and 99b and an electron-emitting portion 99c, is disposed within the shell 98, plug-in terminals. 100 and I01 being electrically connected to the respective legs 99a :and 98b. A bombardment element 102 is-disposed within the shell: 98 opposite the portion 99c of cathode 99. Within the shell 85, but outside. the shell 98, is a reflector 1:03 directed toward the slit screen.

The tube of Figs. 18 and 19 is: essentially the same as the tube of Figs. 16 and 17, being equipped with a shell or envelope 105, a base 106,; a plate 107, and a corrugated plate 108, the two plates being connected to plug-in terSminals 109 and 1:10, respectively, which are adapted to connect electrically with the conductors 62 and 63 of Fig. 13. There is a filament I ll and an inner shell or envelope 112, but no slit screen. Instead of a lens portion- being provided on the inner shell 112, a partition 113 of lens' formation is disposed between the inner shell and the corrugated plate 108. It is fused to thee walls of the outer shell 105. Within the inner -shell 112 is a filament or cathode- 114, which- corresponds to the similar element-99 of the tube of Figs. 16 and 17. A reflector 115 is directed toward the lens partition 113.

Reverting now to Pig. 1, there is another advantageous way of treating a patient pursuant to the invention. As shown at Y, a foot pedestal 120 may be provided for making the patient a part of a condenser. The pedestal comprises an electrically conductive plate element or electrode 121, connected electrically with one of the high potential lines 12, and covered by an insulating platform 122 upon which the patient rests his feet while being treated at any of the previously described treatment stations A, B, C, D, or E.

The electrode 121 and insulating platform 122 are conveniently mounted in a frame 123, which insulates the plate from the ground. The insulating platform 122 is made of a high quality insulating material, such as first grade hard rubber. In certain instances it is desirable that the device be. made in other than foot-pedestal form. For instance, it may be of cylindrical formation for use in a bed against any part of the patient's body.

If desired, the patient may be charged with the high potential electricity by direct contact with a metal or electrically conductive electrode in place of the pad 50 of treatment station E, or of the tube electrodes.

The invention has been described in the foregoing with sole reference to its use for therapeutic purposes. It should be noted, however, that inorganic matter may also be treated to advantage pursuant to the method and with the apparatus of the invention. It has been found that metals, for example, lead, have changed physical properties after treatment in accordance with the above. In instances where the invention is not being used therapeutically, it is not always necessary to insulate the subject from the ground.

Whereas this invention is here illustrated and described with respect to particular specific embodiments thereof, it is to be understood that various changes may be made in such specific embodiments and various other embodiments may be utilized by those skilled in the art without departing from the spirit and generic scope of the invention as set forth herein and in the claims which here follow.

Having fully described my invention, what ] claim is: 1. Apparatus for applying radiant energy ther. apeutically, comprising means for producing higl potential, high frequency electricity; a high ca. pacity sparking condenser; and a treatment elec. trode connected in circuit with the foregoing said treatment electrode including a discharge element adapted to charge the patient with sai( high potential, high frequency electricity, an( radioactive means adapted to discharge radio active emanations into said charged patient.

2. Apparatus in accordance with claim 2 wherein the sparking 'condenser is in the forn of a vacuum tube of high capacity having mu tually spaced capacity elements adapted to pro duce a corona discharge.

3. Apparatus for applying radiant energy ther apeutically, comprising means for producing hig] potential, high frequency electricity; a high ca pacity sparking condenser; and a treatment device connected in circuit with the foregoing, said treatment device including discharge means adapted to charge the patient with said high potential, high frequency electricity, and radiating means adapted to discharge radiations into the charged patient.

4. Electrical treatment apparatus, comprising a high capacity sparking condenser; a treatment outlet electrically connected to said condenser; and means for electrically connecting said condenser to a source of high potential electricity.

5. Electrical treatment apparatus, comprising a transformer for producing high potential electricity; a high capacity sparking condenser electrically connected across the high potential output terminals of said transformer; and a treatment outlet electrically connected to said condenser.

0o 6. Electrical treatment apparatus, comprising a transformer for producing high potential electricity; a high capacity sparking condenser electrically connected across the high potential output terminals of said transformer; and a plurality of treatment outlets independently electrically connected to said condenser.

7. Electrical treatment apparatus, comprising a transformer for producing high potential electricity; a treatment electrode electrically connected to one of the output terminals of said transformer; an electrical conductor sheathed by insulation electrically connected to the other of the output terminals of said transformer and disposed adjacent said treatment electrode so the ;:, subject to be treated may be placed between and in contact with the two; and a high capacity sparking condenser connected across the said outlet terminals of the transformer.

8. In electrical treatment apparatus equipped with. means for the supply of high potential electricity and a treatment electrode, a high capacity sparking condenser electrically connected between the said supply means and the said treatment electrode.

THOMAS H. MORAY.

REFERENCES CITED The following references are of record in the file of this patent: 50PATENTS UNITED STATES PATENTS Number 628,351 647,687 765,470 950,842 1,156,317 1,193,018 1,466,777 1,590,930 1,655,783 2,010,018 2,073,428 2,126,070 2,192,638 Name Date O'Neill ------------July 4, 1899 Topham ----------Apr. 17, 1900 Friedlander -------- July 19, 1904 Davis -------------Mar. 1, 1910 Santos et al. ------- Oct. 12, 1915 Howard ------------Aug. 1, 1916 Winkelmann ------- Sept. 4, 1923 Falkenberg -------- June 29, 1926 Gallois ----------Jan. 10, 1928 Hodnette ------ - Aug. 6, 1935 Schmid ---- Mar. 9, 1937 Wappler --------- Aug. 9, 1938 Dixon ------------- Mar. 5, 1940 OTHER REFERENCES Tousey; Medical Electricity and Roentgen Rays (1910), pp. 493 to 498. Copy in Division 55.