US430551A

US430551A - George it

Info

Publication number: US430551A
Authority: US
Publication date: 1890-06-17
Anticipated expiration: 1907-06-17

Description

(No Model.)

G. H. WADE.

ELECTRIC METER.

'No. 430,551. Patented June 17, 1890.

e Eek WITNESSES: INVENTOR 26/4; EruRszH WADE.

A TTORNEY.

UNITED STATES PATENT OFFICE.

GEORGE II. \VADE, OF ATLANTA, GEORGIA, ASSIGNOR OF ONEIIALF TO \VILLIAM B. PALMER, OF SAME PLACE.

ELECTRIC METER.

SPECIFICATION forming part of Letters Patent No. 430,551, dated June 17, 1890.

Application filed April 2, 1890. Serial No. 3&6,3l8. (No model.)

reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specilica tlon.

This specification relates to devices for noting the stopping and starting of the flow of an electrical current and the moment of such stoppage and starting and the duration of its flow or stoppagc,being more especially designed for high-tension currents, such as are at present employed in arc-lighting circuits, the invention consisting of electro-magnets, whereby the stopping and starting of the current from whatever cause will be converted into a quick motion and applied in actuating a marking device, recording on a suitable moving surface the actions thereof, the details of all of which being hereinafter fully described.

In the accompanying drawings, Figure l is a front elevation of the device, showing the operative parts in their normal position, indicating no current. Fig. 2 is a plan view of the armature and its lever, showing the electro-inagnets and contour of the armature and lever. Fig. 3 is a sectional elevation of the head, showing the arm carrying the same and connecting it to the armature-lever and the peculiar construction thereof, its guide in the casing, and its pivotal point in the armaturelever; and Fig. 4 is a view in section of the adjustable joint in the pencil-carrying arm.

In the figures like reference-marks indicate corresponding parts in the several views.

The box or casing A is preferably of wood and of any form desired, and the clock B may be contained in the same case or in a sepa rate 011e, as preferred. The clock B is supplied with a train of gearing that will revolve the dial 1) once in every twentyfour hours,

and said dial is suitably attached to the proper pivot of said train and is graduated on its face into divisions of hours, numbered one to twenty-four, inclusive, and into sixths of an hour, which are again divided into twelfths of an hour, or five-minute periods. However, especial cfficacy is not claimed for this construction, and the applicant does not, for this reason, confine the construction to these details, but a spring-driven train of gearing is thought preferable for actuating the dial; but said dial may consist of either a circular dial, suitably graduatethor of an endless paper belt suitably laid off in proper time-periods and revolved past the pencil.

Suitably secured within the casing A are the electro-magnets C, which are connected in a suitable manner and position with the wire of an electric circuit, said magnets being wound for the tension of the current. The cores of the magnets are of conoidal form, preferably as shown, and the armature D has apertures, as shown in Fig. 2, providing for passage of the armature over said cores. The said armature is carried on a lever d, and may be made integrally therewith if desired, said lever being pivoted on the lugs 61, which are on the inner side of the casing, and, extending beyond said lugs, has an extension (P, to which is secured one end of a pulling coil-spring (1 the other end of which is secured to the screw -threaded rod (1 which passes through the free end of the bracket (1 depending from the upper inner side of the casing at the requisite point, said rod (Z having a nut d therein, by means of which the tension of the spring may be varied when necessary. Loosely pivoted on the lever (Z is a rod 6, preferably of brass, which passes upwardly through the top of the easing A, being held erect and guided by a sleeve c, set in said casing, and through which said rod e passes. To the upper end of the rod 6 is hinged another rod 6 which carries the head E at its top. The upper end of the rod 6 is tongued and passes into the bifurcated lower end of the rod c while above it is a thumb-screw e, passing through one of the ears of tho bifurcated end of rod c and en gaging with the tongue on the rod 6 and operatiugto hold the hinge stationary while the pencil contacts with the dial. The head E is tubular in form, open at both ends, preferably, and has within it the socket e securely held in any desired position therein by the sctscrew c, passing through the side of the head E and engaging with said socket (2 in which is inserted the pencil c", and a spring c is interposed between the bottom of the socket c and the back end of said pencil, operating to press said pencil against the dial passing under it.

A fixed contact-point F is arranged within the casing in such a position as to form a stop to limit the upward movement of the armature, and this point F is connected in circuit with an electric bell f and open-circuit battery f, of the required electro-motive capacity, which is also connected electrically with the armature D, which acts as a circuit maker and breaker, its contacting with the point F causing the bell to ring, instantly notifying the operator of the stoppage of the current under his charge.

In Fig. 1 of the accompanyingdrawings is shown an indicator-card, which shows the lights on that circuit to have started burning at 18.20, flashed out at 22.25, relighting immediately, and to have gone out at 2.20, remaining out until 3.50, when they burned steadily until 4.25, the pencil being in the position making a line indicating the lights to be out.

The dial 1) has across its face touching its center a right line Z), the graduations on one side of which are periods through which the lights should run continuously, and the graduations on the other side of said line indicate periods when the lights are not needed, this said line Z1 allowing the card to be read at once as to whether the contracted time for starting or stopping was observed by the gencrater-station.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent of the United States, is

1. In an electric meter, an arm adapted to be actuated electrically, and a pencil carrying a head, consisting of the tubular head E, the socket 6 adj ustably secured therein, the pencil e", and the spring c operating to press said pencil out of the socket, all combined, arranged, and operating substantially as specified.

2. In an electric meter, the combination of the casingA, the electro-magnet C, the armature D, pivoted to the casing and having its free end extended to form a lever, the spring (1 attached to said lever at one end and to a bracket at the other, the means for regulat ing the tension of said spring, the arm actuated by said armature, the tubular head E, the socket adjustably secured therein,the pencil, and the spring seated within said socket, substantially as and for the purpose specified.

In testimony whereof I hereunto at'tlx my signature in presence of two witnesses.

GEORGE II. WADE.

lVitnesses:

A. P. \VOOD, W. I PALMER.