US994836A - Electric-arc lamp. - Google Patents

Description

J. H. HALLBERG. ELECTRIC `ARG LAMP.

APPLIUATION FILED JUNE 23, 190B.

994,836, Patented June 13, 1911.

5 SHEETS-SHEET '2.

by @MW 6 Q4-Any.

12% lnx/.'entor:

J. H. HALLBERG.

ELECTRIC ARG LAMP.

APPLICATION FILED JUNI: 23, 190s.

994,836. Patented June 13, 1911.

5 SHEETS-SHEET a.

gi QMMH i dqIm/entor:

- by Qmmm a Atti J. H. HALLBBRG. ELECTRIC RC LAMP. APPLIOATION FILED JUNE 2s, 1908.

Panted June 13,191.1.

5 SHEETS-snm 4.

J.H. HALLBERG.

ELECTRIC ARC LAMP;I A APPLICATION FILED JUNE 23, 190B.

H5.. 9m. 11E 31M 1 s mm uhh JH d5 .muv I m a Lm .l D..

11V 0 W I 0 nr 5 v n. A M H 0 8 w mh M 2. .M IVVWIHNMF! I \l l I H. F AC r |l AOL |I. Q nr l 1 |I u 8 a.. I .|II y l |LUIL. |I. Il 2 IIII" N me zii e Inventor:

liti.

' UNITED STATES PATENT oEEIcE.

JOSEF H. HALLBERG, OF NEW YORK, N. Y., ASSIGNOR T0 THE BECK FLAMING LAMP COMPANY, 0F CANTON, NEW YORK, A CORPORATION OF NEW YORK.

ELECTRIC-lamo LAMP.

Specification of iLetters Patent. Patented June 13 1911.

Application filed June 23, E1908. lSerial No. 439,897.

To all whom it may concern.'

Be it known that I, JOSEF H. HALLBERG, a citizen of the United States, and resident of ,New York, in the county and State of New York, have invented cert-ain new and useful Improvements in Electric Arc Lamps, of which the following is a speciication.

My invention relates to electric arc lamps and its novelty consists inthe construction and adaptation of the parts as will be more fully hereinafter pointed out.

In an application for Letters Patent of the United States filed by meon the 13th day of lJune, 1908, Serial No. 438277, I have described ai novel form of lamp, comprising two electrodes, one supported from the other, and means adapted normally to bring their points into contact when the, lamp is not energized, including an obliquely placed holder for the supported electrode and means whereby the electrodes are automatically brought to a vertical parallel position and their points separated a proper distance when the lamp is energized. In another application for Letters Patent of the United States filed by meon the 22d day of June, 1908, Serial No. 439,666f-,. I have described :means for automatically extinguishing a lamp of the kindreferred to at predeterminedv or proper times. I

This present application relates to the means employed automatically to cut out such an extinguished lamp from a series of which it is a member, for instance, in street lighting.

`In the drawings, Figure 1 is a side elevation of the lower portion of an electric arc lamp embodying my invention; Fig. 2 is a detail ofthe'upper part of the cut out arm showing it supplied with a flexible upper contact piece; Fi 3 is a side elevation of the upper' part o the cut out arm and its Contact pieces; Fig. 4 is a side elevation and partial vertical section of the parts shown in' Fig. 1 showing the electrode extinguished cut of the series; Fig. 5 is a diagrammatic View showing the wiring of the lamps in series and the relative position of their parts; Fig. 6 is a side elevation of the parts shown in Figs. 1 and 4, and Fig. 7 is va top plan view of the device below the upper plate.

In the drawings, 1 is the upper plate of the lamp and 2 is its base and these are connected together by vertically arranged rods or tubes 3 secured in position in any desired manner. Depending from the upper plate 1 vis bracket 4 on which are mounted two 'ble metal from which depends a closed globe (which is not shown in any ofthe views).

The upper plate of the lamp is provided with means whereby it may be suitably suspended and with further'mean's for conducting a current into and out from the lamps, including upwardly projecting posts 14 to which are attached the conductors 140 and 141. The solenoids are connected with c er- -tain of the posts 14 by conductors I1411.- Electrical connection between ,others of the parts of the lamp will hereinafter'appear. The transverse plate 6 is provided with a llaterally extendingbracket 62 having a lon-y gitudinalslotin which there is adapted to be oscillatedf'a rod 64 pivoted at its lower end to a plate 20 arranged across Athe upper part of the base 2, so that the rod 64 can -swing on its pivot when it is actuated bya .lazy tongs 9 which is operatedv through the solenoids 5 when the current is turned on the lamp.

The electrode holder v7 comprises@ rod 70 to one end of which is secured a 'conductor 140a which leads thence to a conducting rod 140b of one of the posts 14. Below this is a slitted tube 71 adapted to receive the supported electrode 30. The holder is also provided with a flange 72 suitably aper' tured so as looselyto embrace the rod 64. Two small wheels 74 arefadapted to roll along the surface of the brackets 62 to relduce the frictionof such lateral movement.

It is obvious that by this construction when the rod 64 is moved on its hinge through the lazy tongs 9 the electrode holder 7 will steatite.

vmove with it and will move the electrode 30 froman oblique to a vertical position or Vice versa.

The electrode holder 8 comprises an upper cross piece 8O by which it is secured to the plate 6 and a dependent slitted sleeve 81 adapted to receive the electrode 31. As the plate 6 moves vertically between the tubes 3`, it is obvious that the electrode 31 must move vertically with it.

The base 2 is provided with a/transverse plate 20 of insulating material, for instance, Itis provided with an upwardly extending bracket 21 to which is hinged the swinging rod 64 and with two apertures adapted to nreceive the electrodes 30 and 31 and permit them to pass through. rIhe electrode 31 is provided with a rear rib and the aperture 22, through which it passes, is made of a proper shape in cross section to serve as a guide for this rib. The electrode 30 is preferably made round, `but the aperture 23 through which it passes 1s made Haring in order to allow this electrode to be moved to a slanting position. The base 2 has a third Haring aperture 24 adapted to receive a vertically arranged sleeve 25 supported by a ring or collar 26 which in turn is secured to the plate 20 by any suitable means. The sleeve 25 extends practically to the bottom of the base 2 and its inside edge is provided with a bevel 28. Inside of the sleeve 25 is a vertical rod 250 of lesser diameter than the interior of the sleeve. This rod is provided near its bottom with a conical member 251 which seals the mouth of the sleeve, and beneath this member there is a conical shoe 252, which serves as a support for the rib of the electrode 31. The rod 250 is provided with an annular groove 253 adapted to be engaged by the po-int of a thumb screw 254 provided for that pur- -pose and moving in a threaded aperture in the sleeve 25. By means of this arrangement the shoe 252 can always be adjusted and the annular space around the rod 250 can be shut off to exclude the air from below. .The conical member 251 fixes the position of the shoe 252 when the former is tightly held against the beveled surface 28.

As thus far described the construction is identical in all substantial particulars with that disclosed in my application No. 438,277, hereinbefore referred to, which I have selected to illustrate the present invention for the reason that I prefer to apply my present improvements to a lamp of said construction, though it will be apparent that my present 'invention may be embodied in lamps of other detail constructions without departing from the spirit of the invention or the scope of the subjoined claims.

The sleeve 25 is provided with externally projecting pins 255 adapted 'lo engage in bearings 256 formed in the collar 26, so that accese it can swing thereon as on a pivot. A limiting set screw 257 with an inner tip of insulating material and adapted to move in a threaded aperture in the base 2 serves to lix the extent of the swing or oscillation of the sleeve 25. Secured to the upper part of the sleeve 25 is an upwardly extending cut out arm 40, provided with a post 41 to which is secured a conductor 140C of the main or working circuit. By this conductor the current is led to the cut out arm and Hows thence through the sleeve or support and into and through the shoe or support 252, when the lamp is working properly. The cut out arm is also provided at its upper eX- tremity with a contact piece, 42 on its outer side, and an armature 43 on its inner side, both of which are in a normally open shunt circuit.

Extending outwardly from one of the rods 3 is a bracket 44 adapted to support a magnet coil 45 connected to a conductor 45 of the shunt circuit. This conductor 45 leads to the conducting rod 140". The core 46 of the coil is bent inwardly to pass by the cut o-ut arm 40 and to contact with the armature 43. A contact piece 47 is connected with the coil by a conductor 45b and is adapted to contact with the outer contact piece 42 of the cut/out arm.

It will of course be understood that the wiring on the interior of the lamp will be of a nature suitable for the proper working of the lamp and in practice is preferably substantially identical with that illustrated in my application No. 438,277 except as to such changes as are necessitated by the ends to be subserved by the present invention. I have not considered it to be necessary to illustrate herein all the details of such wiring for the reason that the same is not an essential part of my present invention.

The rib of the electrode 31 normally rests upon the shoe 252 and in turn this electrode, through the member 6, supports the other electrode 30. The weight of these parts resting upon the shoe 252 tilts the sleeve 25 and swings it upon its pivots 255. This in turn tips the cut out arm 40 away from the coil 45, and so long as the lamp is burning the parts are in these positions as shown in Fig. 1. But suppose the cross piece 6 sticks and no longer slides freely between the tubes 3, or the lamp burns out. Then in time the electrode 31 burns away from the shoe 252 and its weight no longer rests yupon the latter. The weight of the arm 4() is adjusted to meet this contingency and when it does happen, as the weight upon the shoe 252 gradually decreases, the sleeve 25 is gradually tilted and the arm 40 approaches the coil 45. A point is finally reached when the piece 42 touches the piece 47 and'cont-acts therewith and when this occurs the armature 43 is attracted toward the core 46 and the circuit is completed without passing through the electrodes 30 and 31, but without otherwise being interrupted. And if the lamp is one of a series, as illustrated in the diagram shown in Fig. 5, the other lamps of the series continue to burn Without being affected vby the lamp so cut out. In this diagram the several lamps are designated a, b, c and d. The lamps a and d are shown as burning normally and properly supplied with current from the conductors. The lamp b is shown cut out, because the plate 6 has for some reason ceased4 to descend and the lamp c is shown cut out because its electrodes have burned out. In each lamp there is indicated at 1^ a resistance or reactance, which is normally out of Y circuit while the lamp is burning, but is automatically thrown in circuit, to take the place of the resistance afforded by the arc, when the lamp is cut out. This is necessary when the lamps operate in multiple series on a constant potential circuit. It is obvious that it may be dispensed with on constant current series circuits which are usually controlled by automatic transformers, regulators, or special generators at the power house, or substation.

By means of the thumb screw 257 the amount of oscillation of the sleeve 25 can be varied and controlled.

It lhas been found desirable to make the outer contact piece 42 on the upper part of .the cut out arm 40 flexible an'd this construction is shown in Fig. 2 where this contactpiece is shown secured to the arm 40 by means of screws 420 and the upper part of the arm is recessed at 421 to permit `of a slight movement or iexibility of the piece 42 above the lower edge of such recess. At its upper extremity the piece 42 is pure silver eration. y

While I have described the operation of the invention with more es ecial reference to the sticking or non-feeding of the electo facilitate the contacting optrode 31, it will be observed that ends herein ing the closure ofthe shunt circuit. In

application` No. 439,666 hereinbefore referred to, I have set forth means whereby the downward. movement of the electrode 30 may be stopped at al predetermined vari-4 able point, vand it is apparent that the present invention may be applied to a lampv which embodiesy such features.

PEO" vided with a surface indicated Aat 422 ofI What I claim as new is l. In an electric arc lamp, an electrode end of the support, a main circuit which includes the support, a shunt circuit, and electrical means included in the shunt circuit and coperat-ing with the contact-member for holding. the support whenthe weight upon the shoe falls below a predetermined amount.

2. In an electric arc lamp, two movable electrodes one of which is supported upon the other, an electrode support pivoted substantially parallel'to Ythe electrodes to swing in a vertical plane, a shoe at one end of the support normally contacting with one electrode and moved in one direction by the weight thereof, a main circuit which includes the shoe, a contact-member at the` opposite end of the support, and a shunt circuit adapted to be closed through this contact-member when the weight of the electrode upon the shoe lfalls below aI predetermined amount.

3. In an electric arc lamp, two electrodes, one supported by the' other, an electrode support pivoted substantially parallel to the electrodes to swing in a vertical plane, a VKshoe at one end, thereof normally contacting with the arcingend of one electrode, a main circuit which includes the shoe, a contact-member at the opposite end of the support, and a shunt circuit adapted to be closed through the contact-member, the electrode support being positioned .to close the shunt circuit when the weight imposed upon the electrode -support falls below a predetermined amount. 4. In an electric arc lamp, two downwardly movable electrodes, electrical means for moving them into operative position, means for supporting one electrode on the other, an electrode support pivoted to swing in a vertical plane substantially parallel. to the electrodes contacting with the .arcing end of one electrode, said support being adapted to be swung in one direction by Vthe weight of the electrodes, a main circuit which includes the support, an arm secured to the support and having a removable contact-member thereon, and a shunt circuit adapted to be closed through the contactmember when the weight imposed upon the electrode support falls below a predetermined amount. Y.

5. In an electric arc lamp, two electrodes, one of which is supported by the other, an electrode support pivoted substantially parallel to the electrodes to swing in a vertical plane, a shoe extending at substantially right angles from said support and normally contacting with the arcing end of one electrode, a main circuit which includes the support, a Contact arm secured to said support, and a shunt circuit adapted to be closed through the contact arm when the weight imposed upon the electrode support falls below a predetermined amount.

6. In a lighting system, a series of arc lamps each having a pair of electrodes and an electrode support pivoted to swing in a vertical plane substantially parallel to the electrode, a shoe at one end of the support Vnormally contacting with the arcing end of one electrode, a main circuit for the sev'- eral lamps including the electrode support of each lamp, a cont-act member extending from the electrode support of each lamp, and a shunt circuit for each lamp adapted to be closed through the contact member when the weight imposed upon the support falls below a predetermined amount.

7. In a lighting syst/em, a series of are lamps each having a pair of electrodes and an electrode support pivoted to swing in a vertical plane substantially parallel to the electrodes, a shoe extending at right angles from the support and normally contacting with the arcing end of one elect-rode, a main circuit for the several lamps, including the electrode support of each lamp, a Contact member extending from the electrode support of each lamp, and a shunt circuit for each lamp adapted to be closed through the contact member when the weight imposed upon the support falls below a predeter` come@ mined amount, and electrical means coperating with the contact member for holding the shunt circuit closed.

8. In an electric are lamp, an electrode support provided with a rod, means for conducting currentthereto, comprising a sleeve which'incloses and carries said rod, means upon which the sleeve is pivotally mounted, and a cut out arm connected to the sleeve and partaking of the movement thereof.

9. In an electric arc lamp, an electrode support provided with a rod, a sleeve which incloses and carries the rod and is in electrical contact with thesupport,l means upon which the sleeve is ivotally mounted, a main circuit which inudes said sleeve, and a shunt circuit which includes a cut out arm connected to the sleeve.

10. In an electric arc lamp, an electrode support provided with a rod, a sleeve which incloses and carries the rod and is in electrical contact with the support, means upon which the sleeve is pivotally mounted, a main circuit which includes a cut out arm connected tothe sleeve and tending to turn the same in one direction, and an elec` trode which engages the support and tends to turn the same in the other direction.

Witness my hand this 19th day of June 1908, at New York, N. Y.v

JSEF H, HALLBERG.

Witnesses:

WILLIAM R. BAIRD, ALAN C. MCDONNELL.

Images