US145064A - Improvement in telegraph cut-outs - Google Patents

Description

w. E. LINN. Telegraph Ent-Buts.

Patented oec. 2.1873.

jizz/WHW' UNITED STATES PATENT OFFICE.

WILLIAM G. LINN, OF BLOOMFIELD, IOWA.

IMPROVEMENT IN TELEGRAPH CUT-CUTS.

Specification forming part of Letters Patent No. 145,064, dated December 2, 1873; application tiled April 21, 1873.

.To all whom it may concern:

Be it known that I, WILLIAM G. LINN, of Bloomeld, in the county of Davis and State of Iowa, have invented a new and Improved Telegraph GutOut; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings making part of this speciiication, in which- Figure 1 is a front view of the improved cutout representing the main line disconnected from a branch otiice. Fig. 2 is a similar view of the same parts, showing the main line connected with. branch office. Fig. 3 is a section taken transversely through the movable center.

Similar letters ot' reference indicate corresponding parts in the several figures.

This invention is 'designed to improve cut outs for telegraph-wires by the employment of spring conducting-ar ms, in combination with an intermediate movable circuit changer, whereby a person can, by a single movement ot' said changer, cut out77 an office from the main line, or connect it with such line at pleasure, as will be hereinafter explained.

The following description of my invention will enable others skilled in the art to understand it.

'In the accompanying drawings, A represents a board, on which the instrument is applied, and which, in practice, will be fastened up in afconvenient position near the operators ta-.

ble. In the center of the board A, and connected to it by a central pivot, g, is a disk, O, having applied to its periphery two separated conducting-strips, c c, forming raised rims. B B and B B represent four metallic springarms, which are secured to the board A by means of screwbolts a a, a.' a', and adjustingscrews b b, b b.

side.

In Fig. 1 of the drawing the lower ends of the spring-arms B B are represented resting on the conductingstrip c, while the upper ends of the lower arms B B are resting on the conducting-strip o. By this adjustment or' the disk the circuit of the main line is from the left-hand post a, through the two arms B B, and conducting-strip c, and is cut out from the ofcc.

By means of a handle, h, the disk rcan be readily moved about its center, and adjusted as represented in Fig. 2, which establishes a connection with the office through arms B B and strip c on the left-hand side, and thence through arms B and strip c/ on the right-hand Thus it will be seen that the adjustment can be made by a slight movement of the disk O.

The shoulders 17,17', 7c, and Z on the conducting-strips c c serve as right and left hand stops for determining the proper positions for the disk, and the screws which are between the ends of the arms B B are designed for holding the ends of the latter against the conductingestrips c c.

n It will be observed that the main-line wire may be connected either to the posts a a or a M -that is to say, either end of the instrument may be up.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, 1s

The movable disky with its sepa-rated conducting-strips, combined with the conductingarms B B B' B', substantially as described.

WILLIAM GEORGE LINN.

Witnesses W. J. HAMILTON, EDWARD F. HAMILTON.

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