US434154A - Philip lange - Google Patents

Description

(No Model.)

P. LANGE. .ELEGTRIG INDICATOR.

No. 434,154. Patented Aug. 12, 1890.

Fig.1- Fig.2..

CE inesgzs UNITED STATES PATENT OFFICE.

PHILIP LAN GE, OF PIT'ISBURG, PENNSYLVANIA, ASSIGNOR TO THE \VEST- INGIIOUSE ELECTRIC COMPANY, OF SAME PLACE.

ELECTRIC INDICATOR. I

SPECIFICATION forming part of Letters Patent No. 434,154, dated August 12, 1890.

Application filed May 15, 1890. Serial No. 351,945.

To all whom, it may concern:

Be it known that I, PHILIP LANGE, a citizen of the United States, residing in Pittsburgin the county of Allegheny and State of Pennsylvania, have invented a certain new and useful Improvement in Electric Indicator and Core for Same, (Case No. 366,) of which the following is a specification.

The invention relates to the construction of indicators for electric currents.

The object of the invention is to provide a device which will produce a continuous de-' flection of an indicatingarm and give equal deflect-ions for corresponding changes in the current throughout a considerable range.

The invention involves especially the construction of the core for a solenoid, and this core is useful for other purposes than indicating devices, but will be described in connection therewith. The core is constructed of sections of magnetizable material separated from each other longitudinally by spaces and carried by a suitable support.

In the accompanying drawings, Figure 1 shows an electric indicator involving the features of the invention. Fig. 2 is an enlarged View of the core.

Referring to the figures, A represents a frame, upon which the parts of the instrument 0 are supported.

13 represents a solenoid, designed to be connectod in an electric circuit, as indicated by the wires 1 and 2. The wire 2 leads to an adjustable resistance-coil C of well-known construction.

The indicating-arm E is carried upon a pivoted beam F. One end of this beam carries the core G, and a counterpoise H is suspended from the other end of the beam. The distance to which the core will be drawn into the solenoid is dependent upon the difference of potential applied to the coil B.

The core is constructed of sections g, of soft (No model.)

iron, supported at intervals along a rod g. This rod may be of magnetizable material, or 5 in some instances it maybe desirable to construct it of non-magnetizable material. In practice it is found that a core of this construction will afford an approximately equal pull upon the beam for equal increments of potential throughout a considerable range.

A leveling-plumb is shown at K for adjusting the position of the instrument, so that when at. rest the indicator E will be at the central point p of the index-card P.

I claim as my invention 1. In an electric indicator, a solenoid and a core therefor, consisting of sections of magnetizable material, said sections being of such length and separated such distances that sev- 6o oral sections maybe contained within the core at any time, and a rigid rod upon which the sections are' supported apart from each other in a longitudinal series, substantially as described. 6 5

2. In an electric indicatoiythe combination of the indicator-arm, the pivoted support therefor, the solenoid, the core carried by said support and entering said solenoid and consisting of sections of magnetizablc material separated from each other and arranged in a series concentric with the solenoid. and the counterpoise for the core.

A core for electrical devices, consisting of sections of magnetizable material and a stiff rod or support, upon which the sections are arranged in a longitudinal series and separated from each other substantially as described.

In testimony whereof I have hereunto subscribed my name this 5th day of May, A. D. 1890.

PHILIP LANGE.

Witnesses:

J. E. BoNHAM, J. W. SMITH.

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