US937386A

US937386A - Arc-lamp.

Info

Publication number: US937386A
Application number: US39667807A
Authority: US
Inventors: Robert H Pyle
Original assignee: Individual
Current assignee: Individual
Priority date: 1907-10-09
Filing date: 1907-10-09
Publication date: 1909-10-19
Anticipated expiration: 1926-10-19

Description

R. H. PYLE.

ARC LAMP.

APPLICATION FILED 001e, 1907.

937,386. Patented 0st. 19, 1909.

3 SHEETS-SHEBT 1.

1 1 WITNESSES: I [N VENTOR.

2% W Robert H.P l.

7L. Y B

A TTOANEY.

R. H. PYLE.

ARG LAMP.

APPLIOATION FILED 001'. 9, 1907.

937,386. w Patented 0ct.19,1909.

3 SHEETS-SHEET 2.

I N VEN TOR.

WITNESSES:

W M Robert H.P l

ATTORNEY.

R. H. PYLE.

ARC LAMP.

APPLICATION FILED 001'. 9, 1907.

Patented Oct. 19,1909.

3 SHEETS-SHEET 3.

[.VVENTOR. RoLentH-Pyle ID-fiu.

lV/TNESSES:

A TTORNEY.

ROBERT H. PYLE, OF INDIANAPOLIS, INDIANA.

ARC-LAMP.

Specification of Letters Patent.

Patented Oct. 19, 1909.

Application filed October 9, 1967. Serial No. 396,678.

To all whom it may concern:

Be it known that I, ROBERT H. PYLE, of Indianapolis, county of Marion and State of Indiana, have invented a certain new and useful Arc-Lamp; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, in which like letters refer to like parts.

The object of this invention is to improve the construction of clutches in are lamps for holding and regulating the movement of the upper electrode and to that end one feature of my invention consists in what I call a ball clutch, namely, a ball mounted loosely in an inclined recess in the side of the clutch ring and adjacent the upper electrode when the parts are in place, the arrangement being such that the gravity of the ball will cause it to wedge between the clutch ring and electrode and therefore clutch the electrode and hold it in its elevated position. Alongwith the foregoing I provide means for releasing said ball clutch, namely, a pin adapted to engage the ball as the clutch ring moves downwardly with the electrode for dislodging the ball from its clutching position so that the electrode ma 1 drop. Along with the foregoing there is a springpressed means provided for holding the ball down in clutching position.

The features of this invention will be more fully understood from the accompanying drawings and the following description and claim. I

In the drawings Figure 1 is a side elevation of an arc lamp embodying my invention, parts being broken away. I do not, however,'wish to be limited to the use of my invention with a lamp constructed in any particular way so far as the other features of the lamp outside of my invention are concerned. Fig. 2 is a side elevation of the clutch and upper electrode showing the parts of the clutch in posit-ion and parts being broken away. Fig 3 is the same as Fig. 2, showing the clutch released and not in clutching position. Fig. 4 is a horizontal section on the line 44 of Fig. 3 with the electrode removed and the ball in the lower end of theball recess. Fig. is an elevation of the upper electrode holding a clutching means showing the reverse side thereof as compared with Fig. 2 and parts being broken away, the clutch being shown in operating condition. Fig. 6 is a horizontal section on the line 66 of Fig. 1. Fig. 7 is a vertical section on the line 77of Fig. 1.

Referring to the details of the construction illustrated, there is shown a lamp frame 10, which, however, may be of any type,

for guiding it on the bracket 20 which is.

secured to the vertical bar 12. The bar 12 has a vertical slot 22 near its lower end in which the lug 23 projects from the clutch ring 24. A cotter pin 25 or the like, through the lug 23, holds the clutch. ring, and the arrangementpermits the vertical movement of the clutch ring. The clutch ring loosely surrounds the upper electrode and has in the inner wall thereof a recess 26 for the clutch ball 27. The recess is inclined upwardly away from the hole through the clutch ring for the electrode so that when" the ball is in the upper end of the recess, it will disengage the electrode, and when in the lower end of the recess, it will project into the hole for the electrode and engage and clutch the electrode. The lower end of the recess is reduced so the ball cannot escape. A clutchreleasing pin 28 projects up... from the ring 15 into the recess 26 for engagingthe balls '27 when the electrode and clutch ring move downwardly far enough to permit this result. A rod 29 is secured at its lower end to the clutch ring 24 and at its upper end to the slide 19. This rod 29 is to move the clutch ring 24 in response to the action of the solenoid. There is also a rod 32 that at its lower end projects into the upper part of the ballrecess 26 and at its upper end extends loosely through a hole in the bracket 20 and the spring 33 is coiled around said rod immediately below said bracket and above the disk 34:. -The function of this spring-controlled rod 32 is to positively dislodge and push downward the ball 27 into clutching position and yet permit the ball to recede or move upward when pushed upward by the pin 28. The wiring is of the usual form,

- the arc lengthens the current will weaken,

there being the wire running to the bind ing post 41, a wire 42 to the upper electrode clamp 14, a wire 43 from the lower electrode holder 44 to the solenoid, a wire 45 from the solenoid to the binding post 41, and a wire 46 therefrom.

In operation, before the current is turned on, the upper electrode rests upon the lower electrode and the clutch mechanism is in the position shown in Fig. 3, that is in disengaging position. As soon as the current is turned on, the core of the solenoid moves downwardly and aetuates the lever 18 so that it will elevate the clutch ring 24 to the position shown in Fig. 2, and that elevates the upper electrode to establish the are. As

and through the solenoid will permit the gradual downward movement of the clutch ring and upper electrode until the ball comes in contact with the clutch-releasing pin-5128. Thereafter the parts remain substantially in that position. When the arc becomes too long, the clutch drops down slightly and the ball is moved slightly upward by the pin 28 so as to slightly disengage the upper electrode and permit it to move downwardly very slightly and shorten the arc, and then the slight increase of current will slightly elevate the clutch and electrode, so that there is substantially uniform interplay between the pin 28 and the ball 27 of the clutch,

whereby the upper electrode. is gradually fed downwardly as it is consumed, and yet I the length of the arc is maintained substantially uniform.

In the drawings there is shown a base 50 with a post 51 for the lower electrode and a post for a reflector 53. There is also a spring 54 from a bracket 55 on the post 10 that runs to the lever 18.

What I claim as my invention and desire to secure by Letters Patent is:

In an arc lamp, a clutch ring adapted to surround the upper electrode, and with a recess in the inner wall thereof that inclines downwardly toward the electrode, a ball fit ting in said recess that when in the lower part of said recess projects beyond the inner wall of the clutch ring in position to clutch the electrode, means controlled by the current through the lamp for elevating said clutch to the clutching position, a statlonary bar beside the electrode with .a ringon the lower end thereof surrounding the electrode, and a pin extending upwardly from said ring and adapted to enter the ball'recess in the clutch ring when said clutch ring moves downwardly, whereby said pin will disengage the ball from the clutching position.

In witness whereof, I have hereunto affixed my signature in the presence of the witnesses herein named.

ROBERT H. PYLE.

Witnesses:

N. ALLEMoNG, W. M. GENTLE.