US390911A

US390911A - Regulator for electric translating devices

Info

Publication number: US390911A
Authority: US
Publication date: 1888-10-09
Anticipated expiration: 1905-10-09

Description

(No Model.) 0. B. SHALLENBERGER.

REGULATOR EOE ELECTRIC TRANSLATING DE VIGES. No. 390,911.

Patented Oct. 9, 18g/8.

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UNTTED STATES PATENT Ottica.

OLIVER B. SHALLENBERGER, OF ROCHESTER, ASSIGNOR TO THE TESTING- HOUSE ELECTRIC COMPANY, OF PITTSBURG, PENNSYLVANIA.

REGULATOR FOR ELECTRG TRNSL/'ilb DJiCES.

SPECIFICATION' forming part of Letters Patent No. 8S10,9ll, dated October 9, 18238.

Serial No. 257,406. (No model.)

To @ZZ whom, t may concern.'

Be it known that l, OLivEi-c B. SHALLEN- BERGER, a citizen ofthe United States, residing in Rochester, in the county of Beaver, in

the State of Pennsylvania, haveinventcd certain new and useful Improvements in Regulating Electric Translating Devices, (Case No. 172,) ol" which the following is a specification.

The invention relates to aplan ot' regulating 1o the current supplied in a system of alternatecurrent distribution to translating devicesfor inst-ance, incandescent electric lamps.

The object ofthe invention is to provide convenient means whereby translating devices operated by alternating, intermittent, or pnlsatory electric currents may be operated under the influence of a difference of potential which may be varied as required between cert-ain limits.

The general plan of the invention is to con neet either the supply-circuit or translatingcircuit with the terminals of a coil of wire disposed about a core of soft iron while the other circuitis capable of being connected through a greater or less portion of the length. Ilhus the translating circuit may be connected through a greater or less length of wire disposed about a core of soft iron, the entire length ol the coil being included between the conductors supplying current to the system, or the translating-circuit may be connected between conductors leading from fixed pointsin the coil and an equal or greater length of this coil included between the supply-conductors. It is found that by preserving throughouta given coil a nxed difference of potential and applying one terminal of the translating-circuit to different points in the length of this coil, the other being permanent-ly connected 4o at one extremity ofthe coil, the difference of potential at the translating devices may be varied in the same way as if a converter were employed having a secondary coil of adjustable length.

It is essential to the operation of this regulator that the core should be common to all the coils, otherwise there would be no mutual induction between the dierent sections of the coils.

If the translating devices are connected in xed relation to the coil, practically the saine etfects maybe accomplished by conncctingthe terminals of the supply-circuit to different points. By either of these arrangements a greater current will traverse the translatingcircuit except when the two are equal. The device is usually employed, as has been described, to reduce the potential on the translating devices below that of the supply-circuit; but the arrangei'nent may be such as to allow an increase above that potential,in which case the current is less than that of the supply-circuit. ln general, the product ofthe difference ot' potential and current in the supplycircuit is approximately equal that-in thetranslating-circuit. The device cannot therefore be regarded as a variable shunt or series resistance, such as has heretofore been employed for a like purpose.

ln the accompanying drawings, Figure l is a diagram iilust-rating a method of Ycarrying out the invention, and` Fig. 2 illustrates a niodication.

Referring to the figures, L If represent mainline conductors leading from any suitable source of alternating electric currents,and Z ZL conductors supplying translating devices d d. Between the conductors L and L2 there is connected a coil, P, of insulated wire disposed about a core, C. This coil may be considered as being divided into sections pp'l p3 pi. From these sections conductors l 2 3 +iare derived, leading to switch-points s, s2, s, and 8*. lhe switch-arm S is designed to be moved over these points. rlhis switch-arm is connected by a conductor, 5, with one of the supply-conductors, Z2.

lhe lamps d d may be connected in multiple arc or otherwise between the conductor ZZ and the conductor l', which latter is derived from the line L. By moving the switch-arm S along the points s s, &c., any required dit'- ierence of potential may be obtained for the lamps, varying from Zero to the iull electrornotive force upon the circuit, the greatest brilliancy being secured when the switch S is upon the point s.

ln Fig. 2 a modification is shown in which the translating devices are connected to a delinite length, p5, ofthe regulating-coil, while the IOO regulation is effected by moving a switch-arm, S, which is connected with the conductor L, over the points s si s3, &c. One terminal of the section p5, it will 'be understood, is connected with the conductor 6, while the conductor Z7 leads to the switch-points, connected with the section plof the regulating-coil. rlhe conductor Z is derived from the line L. In this instance the effect of moving the switch to the left is to lengthen the primary circuit, and the result isjust thc same as decreasing the length ofthe secondary circuit in Fig. l-that is to say, the ratio of conversion is reduced and the lamps are turned down. The pointsG is shown connected by a dotted line to a point Within the section p5. By placing the switch S upon this point the diiierence of potential may be increased above that of the circuit L L2.

I claim as my invention- 1. The combination, with a source of alternating electric currents and one or more trans` lating devices, of regulating coils, a core of magnetizable material common to all the coils, a circuit across the poles ot' the source including said coils, and a circuit including the translating devices in series with a portion of the coils.

2. The combination, with a source of alternating electric currents and one or more translating devices, of regulating-coils and a core of magnetizable material common to all the coils, a circuit across the poles of the source Including said coils, a circuit including the translating devices in series With a portion of 35 the coils, and a device for varying the length ofthe latter portion.

3. The combination of translating devices, a source of electricity supplying currents thereto, regulating-coils, a core of magnetizable material common to all ot said coils, the coils having a portion of their length connected with said source in series with said translating devices, and a portion connected to the source in parallel with the translating devices, and means for varying the relative lengths ofthe portions of the coils so connected.

4. The combination, With the main lines Z'Z2 and the translating devices d d, operated by currents transmitted over said lines, of the coil P, connected between conductors L and L2 and divided into sections p', 132,123, and p4, a core, C, common to all the sections,and means for connecting the translating devices in shunt upon one or more oi' said sections, snbstantially as described.

In testimony whereof l have hereunto subscribed my name this 18th day of November, A. D. 1887.

OLIVER B. SHALLENBERGER.

Vitnesses:

REGINALD BELFIELD, WV. D. UPTEGRAFF.