US1348986A - High-tension electric machine - Google Patents

Description

C. FAYER.

HIGH TENSION ELECTRIC MACHiNE.

APPLICATION FILED JUNE 26, 1919.

Patented Aug. 10, 1920.

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I CHARLES FAYER, OF NEW YORK,

N. -Y., ASSIGNOR T0 WAPPLER ELECTRIC CO., INC., A

CORPORATION OF NEW YORK.

HIGH-TENSION ELECTRIC MACHIN'E.

To all whom it may concern;

Be it known that I, CHARLES FAYER, a citizen of the United States, residing at New York ,city, New York, have invented certain new and useful Improvements in High-Tension Electric Machines, of which the following is a full. clear, and concise description.

My invention relates to high tension electric machines, of a type suitable for use in connection with X-ray tubes and the like, and in which a rectifying disk is used in connection with a high tension transformer.

More particularly stated, my invention contemplates a high tension electric machine of the kind just mentioned, and in which I give the various parts such form and arrangement as to render them re'adily acas well as to a greatextent removable andreplaceable independently of each other.

My invention further contemplatesthe arrangement of the various parts in such relative positions as to improve the insulation of the various conducting members.

In addition, my invention comprehends the collection of the parts in such manner as to promote strength, simplicity and compactness, combined with increased efi'iciency.

Reference is made to the accompanying drawing forming a part of this specification, and in which the various parts are designated by reference numerals, thefigure be-v mg a perspectlve of my device with certain parts broken away.

A cabinet 1 is 2 and with a door 3 as well as with a top4. These parts are may be constructed of other material should occasion so require. The cabinet is provided with a removable glass or bakelite plate window 5. p

Located within the cabinet is an iron table 6, secured rigidly in position by aid of braces, one of which. is shown at 7.

Below the table 6 is a transformer 8 the secondary of which supplies the high. tension currents to be rectified.

Resting upon the iron table 6 and detachably secured thereto by bolts 9 is a synchronous motor or rotary converter 10. This motor is provided with a massive bearing 11 and with an armature shaft 12 which extends through'this bearing and to a distance of several inches therefrom.

Specification of Letters Patent.

county of Bronx, and State of' provided with a door way a usually made of wood, but

Patented Aug. 10, 1920.

i Application filed June 26, 1919. Serial No. 306,813.

, extend through holes in a clamping plate 16 and into engagement with the head 13. By removing the bolts, the disk 14 may be readily detached, and by replacing the bolts the disk may be again secured upon the shaft. The window 5 is removable in order to facilitate access to the disk 14 and other parts to be removed.

The rectifying disk 14 carries a pair 'of sectors 17, made of conducting material and connected by a wire or metallic strip 18; also another pair of sectors 19, similarly connected by a wire or strip 20.

Disposed adjacent the path of travel of the sectors 17, 19 are four brushes 21, 22, 23, 24, supported by four posts 25, 26, 27, 28 of insulating vulcanite.

The post 26 is mounted upon a standard 29, which is made of metal and detachably secured by a bolt 30 to the table 6. The post 28 is mounted upon a metallic standard 29, similar to the standard 29 and like the latter detachably secured to the table 6. The post 25 is mounted upon a beam 31, made of metal and secured to the metallic posts 29, 30. The beam 30 has substantially the general form of an inverted V. The post 27 is secured to a metallic bracket 32, which is mounted upon the under side of the table 6.- This bracket, like the standards 29 and 3.0, is substantially flush with the adjacent edge of the table 6, so that the posts 25, 26, 27, 28 each extend out toward the window 5, for some little distance from the general vertical plane of the table 6.

The armature shaft 12 is of such length as to support the disk 14 in a vertical plane a little to the right ofthe brushes 21, 22, 23, 24, according to the figure.

Thus the disk 14 is spaced far enough from the table 6 to prevent all. danger of sparks leaping from the disk or from any posts carried by it to the metallic table or any of the various metallic posts mounted thereon. Thus by placing the disk 14 at a safe distance from the table, the disk is disposed nearer to the window 5, and hence, more readily accessible for purposes of removal and replacement.

Connected with the secondary of the transformer 8 are two leads 33, 34, which extend through two insulators 35, 36 which are mounted upon wooden arms 37, 38, these arms being detachably secured to the metallic table 6. The leads 33, 34, are connected to the brushes 22, 24. A lead is connected to the brush 21 and to a post 40 made of insulating material, and through which extends a conductor 41. A similar post 42 is connected to a lead 43, and a conductor 44, which may be a part of the lead 43, extends through this post. The lead 43 extends through a ,wooden arm 43, supported by the table, and is provided with a portion 46 which is connected to the brush 23.

The rectified currents are taken from the - conductors 41, 44, at the top of the cabinet.

The manner in which the high tension currents are rectified forms no part of my present invention, and is accomplished in the usual manner by the action of the rectifying disk and the synchronous motor actuating the same.

The operation of my device may be readily understood from the foregoing description.

The transformer 8 and the synchronous motor 10 being in action, the high tension currents are induced in the secondary of the transformer and are rectified as above mentioned. No sparks can leap from the disk to the table or to any metallic part carried by or immediately associated with the table.

If, however, the window 5 be removed the parts are readily accessible. The disk may e removed, and for this purpose is disengaged from the hub 13 and armature shaft by merely taking out the bolts 15.

The standards 29 and 30 may be quickly and easily detached from the table, and re moved along with the beam 31, the leads 33, 34 being disconnected for this purpose. Thus the standards 29, 30 and the beam 31 may together be considered as a frame, having roughly an arcuate form and removable bodily with the posts 25, 26, and 28.

By taking out the bolts-9 the motor 10, carrying the armature shaft 12 and the disk 14, may be removed without disturbing the frame consistin of the standards 29, 30 and the beam 31. Similarly the removal of this frame is accomplished without disturbing the motor or the disk.

The wooden arms 37, 38, 45 are easily taken out, or disconnected from the parts to which they are secured.

It will be noted that by my arrangement of the parts the insulation is greatly improved,

since all of the metallic parts are so spaced and arranged that while great differences in potential may be developed between different metallic parts, no great diflerence in potential can develop between any two metallic parts located close together. An important feature of the invention is adequate spacing between such metallic parts as are subjected to excessive differences in potential.

The posts are also arranged in such manner as to prevent leakage of current and to avoid as far as practicable the development of all conditions tending to subject the posts to undue electric strain, even when my device is used for long periods'of time or subjected to moderate degrees of dampness or employed under climatic conditions tending to invite a breakdown.

It will also be noted that my arrangement promotes great strength, stability, efficiency and compactness.

I do not limit myself to the precise arrangeinent shown, as variations therefrom can be made within the scope of my claims.

I claim:

1. In a high tension electric machine the combination of a 'metallic table, a plurality of supporting members secured thereupon and disposed adjacent one edge thereof, posts of insulating material mounted upon said supporting members and extending away from said ed e of saidtable, brushes mounted upon sai posts and thus spaced away from said table and from all metallic parts. in immediate proximity thereto, a synchronous motor mounted upon said table and provided with an armature shaft extendin away from said table, and a rectifying dis mounted upon said armature shaft and provided with conducting members rotating in a plane disposed adjacent said brushes.

2. In a high tension electric machine the combination of a cabinet provided with a window, a table disposed within said cabinet, a synchronous motor detachabl mounted upon said table and located ad jacent' said window so as to be readily removable through said window when detached from said table, a rectifying disk located within said cabinet and connected with said motor so as to be actuated thereby, a frame detachably mounted upon said table, posts mounted upon said frame, and brushes carried by said posts and co-acting with said rectifying disk for the purpose of rectifying electric currents, said frame with said posts and brushes being as a unit so located as to be readily removable as a unit through said window independently of said motor.

3. In a high tension electric machine the combination of a cabinet, a supporting table located within said cabinet, a synchronous motor mounted upon provided with a revoluble shaft projecting over one ed e thereof, a frame mounted u on said ta le and disposed adjacent said e ge thereof, posts of insulating material mounted upon said frame and projecting over said edge of said table, brushes carried by said posts, a revoluble rectifying member carried by said shaft and co-acting with said brushes for the purpose of rectifying electric currents in synchronism withv said I motor, said revoluble rectifying member betable and substantially mg spaced from said supporting table by a distance sufficient to prevent sparking as between said disk and said table.

4. In a high tension electric machine the a metallic supporting table,

side thereof, a post carried by said arm and extending beyond the edge of said table, a pair of standards detachably mounted upon said table, a frame member mounted upon said standards and together therewith constitutin a frame, a plurality of posts mounted upon said frame, brushes mounted upon said last mentioned posts and upon said first mentioned post, all of said brushes being arranged substantially in a vertical plane, a synchronous motor mounted upon said table and provided with a revoluble shaft extending beyond said edge of said parallel with ends of said posts, a rectifying disk mounted upon said revoluble shaft, and co-acting' with said brushes for the purpose of rectifymg currents, said disk occupying a plane said table and,

-mechanism co-acti table,

substantiall parallel with said plane in which said brushes are mounted.

5. In a high tension electric machine the combination of a table and arm mounted upon the under side of said table, a pair of standards mounted upon the upper side of said table, a frame member secured to said standards, mounted u n said standards and said frame mem r and also upon said arm, brushes carried by said posts and a rectifyin disk revolubly mounted adjacent said 7 rushes and provided with contact with said brushes for the purpose of rectifying 6. In a high tension e ectric machine the combination of a metallic table, a pair of metallic standards mounted upon said table and disposed adjacent one edge thereof, a frame member mounted upon said standards and together therewith constituting a frame, an arm mounted upon the under side of said a post of insulatin material mounted upon said arm and exten in past said edge of said table, other posts 0 insulating material mountedupon said frame and each projecting, past said edge of said table, a brush mounted upon each post, all of said brushes being disposed su vertical plane,a synchronous motor mounted upon said table and provided with an armature shaft having suflicient length to extend beyond said edge of said table and a rectifying disk mounted upon shaft and disposed adjacent the which said brushes are located.

' CHARLES FAYER.

plane in posts of insulating material electric currents.

the outer end of said

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