US2590601A - Apparatus for violet ray treatment - Google Patents

Description

March 25, 1952 c. G. FILZER APPARATUS FOR VIOLET RAY TREATMENT 3 Sheets-Sheet 1 Filed May 18, 1949 Zhwentor u b mtomeg March 25, 1952 2,590,601

I APPARATUS FOR VIOLET RAY TREATMENT Filed May 18, 1949 3 Sheets-Sheet 2 I 3nventor Gttomeg March 25, 1952 c. s. FILZER APPARATUS FOR VIOLET RAY TREATMENT 3 Sheets-Sheet 3 Filed May 18 1949 Zhwentor (Ittomeg Patented Mar. 25, 1952 UNITED STATES PATENT OFFICE 2,590,601 APPARATUS FO-R VIOLET RAY.TREAT:MENT Christian G; Filzer, Erie,- Pa; Ap lication May 18, 1949, Serial N0. 94,028 1 cla m, (01. era-24s) This inventionis intended to improve the operation of generators for violet ray apparatus which ordinarily include a magnetic coil and a condenser, producing a current which is fed through a resonance coil to a violet raytube.

In a preferred form, the condenseris enclosed in a casing overhung from the coil enclosing casing. A blast of cooling air is discharged to the coil casing and escapes through openings directed into the condenser casing. The condenser casing has a removable cover through which the condenser can be changed. Further objects and advantages appear in the specification and claims.

In-the drawings, Fig. l is a side elevation of the-current generator; Fig. 2 is an end elevation with the cover for the condenser case removed; Fig. 3 is an end view of the cover for the condenser case; Fig. 4 is a top plan view, partly broken away; Fig. 5 is a section through the motor and cooling fans; and Fig. 6 is an end view of the motor.

In the drawings, I and 2 indicate front and back plates connected by four rods 3 forming a frame which telescopes into a case 4. Adjacent the black plate 2 is a support 5 for the rear end of a magnetic coil 6. A similar support I carries the front end of the coil. The supports 5 and I are carried by the rods 3. Journaled in the front wall I is a knob 8 connected through a block 9 of insulating material to an adjusting screw ID for a vibrator l l. The coil is energized by a power line l2, l3, line l2 being connected to a brush l4 making contact with a collector [5 carried by the adjusting screw I0. When the adjusting screw I is properly adjusted a contact H at the inner end of the adjusting screw locates the vibrator H with respect to the pole piece I! of the magnetic coil so that the vibrator makes and breaks the circuit through its contact I8 and the contact Hi. When the contacts l6 and I8 are in engagement, the circuit from the power line extends from line l2 through brush l4, collector 15, contacts 16 and I8, to the vibrator H and from the vibrator H through line l9 to a terminal 20 connected to a condenser 20a and to a lead 2| connected to the magnetic coil. From the other side of the line l3 the circuit extends through a lead 22 connected to a terminal 23 connected to the other side of the condenser and through a lead 24 to a resonance coil 25 connected through a lead 26 to the other side of the coil 6. The resonance coil 25 feeds a violet ray tube 21. When the circuit to the contacts l6 and I8 is broken, the power line l2. I3 is disconnected and the resonance coil 25 is connected across the magnetic coil 6 and the condenser 29a in parallel.

On the top wall of the case is mounted a standard 21a carrying a rock shaft 28 having an arm 29 fixed thereto which engages a plunger 30 operating a. switch 3| in circuit with leads 32 and 33. Thereis a mechanical connection between the block 9 of insulating material and the rock shaft so that as the knob 8 is adjusted to cause operation of the vibrator il, the switch 3| is closed completing a circuit between the leads 32 and 33. The switch 31 and the leads 32 and 33 are in the power circuit to an electric motor 34 having a paddle wheel fan 35 on its shaft 36 which draws air into intake opening 31 and discharges air under pressure through a nozzle 38 mounted on and discharging through the top wall of the case 4. The nozzle 38 serves both to direct air into the case 4 and to support the motor. The construction of the switch 3|, the mechanical connection between the block 9 and the rock shaft 28, and the power circuit to the motor 34 are more completely illustrated in my Patent No. 2,323,529.

Projecting from the rear wall 2 are spaced tubular metallic studs 39 and 40 respectively lined with sleeves 4| and 42 of insulating material. A metallic rod 43 associated with the terminal 20 extends through the sleeve 4| into a metal case 44 carried on the projecting ends of the studs 39 and 40. A metal rod 45 associated with the terminal 22 extends through the sleeve 42 into the case 44. The rods 43 and 45 respectively terminate within the case 44 in binding posts 46 and 41. The binding post 46 is connected by a lead 48 to a clamp 49. Binding post 41 is connected by a lead 50 to a clamp 5|. The clamp 49 and 5| have screws 52 and 53 which press the clamps against terminals 54 and 55 of the condenser 20a. In case the condenser has round leads instead of the flat leads 54 and 55 illustrated, the screws 52 and 53 may serve as terminal screws around which the respective round condenser leads may be wrapped. The condenser is supported in the case 44 between blocks 56 and 51 of insulating material having mating recesses 59 receiving the condenser. The block 56 fits against the back wall of the case and the block 51 is clamped against the block 56 by shoulder screws 59. The shoulder screws have threaded ends 69 which project through a cover plate 6|. The cover is held in place by nuts 62 threaded on the projecting end 60 of the shoulder screws 59.

The cooling air discharged into the case 4 during the operation of the vibrator flows out through openings 63 in the rear wall 2. The amount of air discharged through these openings is controlled by a circular plate 64 pivoted on a bolt 65 which both serves as a pivot and to hold the plate 64 against the outer face of the rear wall 2. The plate 64 has openings 66 which can be moved from the position illustrated in which they register with the openings 63 to a position in which the openings 63 are completely blocked by the plate 64. This'permits complete control over the quantity of cooling air discharged from the case 4. The air discharged through the openings 63 flows across the intervening space provided by the studs 39 and 40 and enters openings 61 in the rear wall 68 of the condenser case. This cooling air flows over the condenser and out through perforations 69 in the cover plate 6| for the condenser case. During the operation-of the .generator considerable heat is created which must be dissipated to prevent overheating. By having the magnetic coil and the condenser'in separate cases with an arrangement for controlling the flow of cooling air localized overheating of the apparatus is prevented.

' Mounting the condenser in a separate case with an easily accessible cover permitting access to the interior of the case permits easy changing or renewal of the condenser. The construction is such that the operator is protected against v ing air enters through openings 10, flows over themotor. and is discharged through openings H 4 by a fan 12 on the motor shaft 36. The fan cooling the current generator is at one end of the motor and the fan 12 cooling the motor is at the other end.

The motor bearings 13 have lateral oil passages 14 extending into upright oil ducts 15 having upper ends 16 accessible from the top of the motor.

What I claim as new is:

In an induction coil type of current generator designed for supplying violet ray apparatus and the like, the current generator including a magnetic coil and a condenser, a case enclosing the magnetic coil, hollow studs projecting from a wall of the case, a condenser enclo 'ng case carried by the projecting ends of the st ds, leads for the condenser extending through he studs, a motor driven fan energized during e operation of the current generator carried by and for blowing cooling air into the coil enclosing case, an air outlet in said wall, and an air inlet to the condenser enclosing case aligned with and facing into the air stream discharged from said outlet, the inlet to the condenser coil being spaced from the outlet from the coil case whereby the cooling air discharged from the coil case flows across the intervening space.

CHRISTIAN G. FILZER.

REFERENCES CITED The following references are of record in the Number Name Date Filzer Q July 6, 1943

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