US364619A - Relay-instrument - Google Patents

Description

(No Model.) G. T. WOODS.

RELAY INSTRUMENT.

No. 364,619. Patented June 7, 1887.

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"UNITED [STATES GRANVILLE T. woons,

PATENT OFFICE.

OF CINCINNATI, OHIO.

RELAY-INSTRUMENT.

l SPECIFICATION forming part of Letters Patent No. 364,619, dated June '7, 1887.

To all whom it may concern:

Be it known that I, GRANVILLE T. Woons, a citizen of the United States, residing at Cincinnati, Ohio, have invented new and useful Improvements in Relaylnstruments, of which the following is a specification.

My invention relates to relay-instruments used in telegraph y, its object being to improve in construction and sensitiveness of action for general use, but with particular reference in the present instance to the system of inductive telegraphy for which I have an application pending for Letters Patent.

Mechanism embodying my invention is illustrated in the accompanying drawing, showing my improved relay in elevation, with one of the electromagnet spools and hollow polar extensions sectioned to show the construction.

Referring, now, to the drawing, in which the parts here referred to are indicated by the letters of reference, A is a magnet of iron or steel, bent in U form and vertically mounted upon a stand or base, (not shown,) and B B are hollow polar ex tensions secured in the same axial line horizontally in the vertical ends of the magnet A. Vithin the hollow extensions B B are placed cores 0 O of electro-magnets, whose helices D D are in the main circuit at m, and so wound upon spools surrounding the polar extensions B B as to give the same signs of magnetism to the contiguous ends of the The cores 0 O are threaded in the hollow extensions B B and extend inwardly beyond the spools, adjustable toward or from each other.

A metallic stand, E, secured by its legs at F F to the base of the magnet A, rises centrall y, with lateral arms a a extending beyond the terminus of the stand E. At the sides of the upper end of the stand E are secured, by holding-screws G G, threaded through the arms (6 at opposite sides, two upright soft-iron armatures H H, the holdin screws clam J- ing the lower ends of the armatures against the central trunk of the stand E, with insulating-blocks l I interposed between the ends of the holdingscrews and said trunk,and similar insulations, I 1, interposed between the armatures H H and the central trunk of the stand E. At the upper ends of the lateral arms a are adj listing-screws G G, bearing in- Application filed September 17, 1886. Serial No. 113,823. (No model.)

wardl y against the armatures (through inten posed insulatingblocks K K) beyond the terminus of the stand E, the function of the latter adj ustments being to force the armatures together or allow them to move apart by the repelling action of the polar extensions 13 B, the flexion of the armatures permitting such movement without pivotal connections.

The armatures H H extend upward between the contiguous ends of the cores 0 O andbe yond the same, one ofthe armatures, as H, be ing longer than the other and bent over behind H, and provided with a contact-button, O, forming a back-stop, the end of the straight armature H being similarly provided with corresponding contact, 0. At the opposite contact side is placed a block of insulating material, 1 as shown. The armatures H H areconnected with 'the local circuit-wires L L, respectively. The operation is as follows: \Vhennormally at rest, the armatures H H stand, as indicated in the drawing, with the point 0 resting against the insulating-block P. WVhen a current is sent through the line at m, the magnets O O are similarly energized, and their mutual attraction tends to draw the armatures H H apart and bring the contacts 0 0 together, thus closing the local circuit L L. \Vhenevcr the circuit on m is broken, the resiliency of the armatures H H asserts itself and holds the armatures H H upon the. insulating-contacts P O.

The means of adj nstment are as follows: The holding-screws G" G not only serve to clamp the armatures H H to the stand E, but, as will be obvious, react upon the arms a a to regulate the initial positions of theadjustingserews G G, While the latter serve to regulate the position of the free ends of the armatures H H. The hollow polar extensions B B, being threaded in the supporting-arms of the magnet A, are thereby adjustable longitudinally, while the cores 0 0, being threaded in thepolar extensions B B, are likewise independently adjustable longitudinally. It will also be observed that the construction, while extremely simple, permits ready separation for cleaning and permanent adjustment of parts. The c011- struction also affords a perfect immunity from disturbing shocks or vibrations-such as would be experienced on moving railway-trains or in too like situationswhile attaining the utmost sensitiveness of action.

WVhiIeIhave described certain parts as being vertical or mounted vertically, it should be understood that I use the term only in relation to the base or support of the instrument, which may, in fact, be used in any position.

I have described the part A as a permanent magnet; but the relay would be operative to a practicable degree were the part A constructed of iron or any other metal or substance and in any form capable of affording a mere support for the elect-ro-magnets and the armaturcs. In such case the polar extensions 13 would exercise no magnetic influence and might be wholly omitted, and the spools secured directly to the terminals of the support A and the cores 0 C rendered adjustable through the spools. The construction first described, however, is to be preferred.

I claim as my invention and desire to se cure by Letters Patent of the United States 1. The combination, in a relay, of magnets in the main circuit arranged with a separating interval in the same axial line, their contiguous poles exhibiting the same sign of magnetism, with a pair of soft-iron armatnres in local circuit arranged in said interval across the axial line of the magnets, substantially as set forth.

2. In a relay, a magnet having two poles exhibiting the same sign of magnetism, in combination with a pair of armatures arranged between the poles of said magnet and exhibit ingthe opposite sign ofmagnetism, asset forth.

3. The combination, in a relay, of a tubular extension of the magnet-pole, an insulated helix surrounding the same, and a soft-iron core inserted in and through such hollow extension, in combination with two vibratory an matures and contact-stops in the local circuit, substantially as set forth.

4. In a relay, the combination of a magnet provided with two hollow polar extensionsin the same axial line and carrying upon such extensions helices of electro-magnets whose cores are placed within and project through such polar extensions, with two vibratory armatures rising between the contiguous ends of said clectroi'nagnets and of said polar extensions, the end of one such armature extending also rearward of the other and provided with insulated and contact stops, substantially as set forth.

5. The relay as constructed, embodying, in combination, a U-shaped magnet, a pair of vibratory armatnres constituting portions of the local circuit, rising between the poles of the magnet, hollow extensions of the magnet adjustable toward the armature, a helix surrounding anda soft-iron core inserted through and adjustable in the hollow extensions, and means, substantially as described, for adjusti ng the armatnres in relation to each other.

6. In a relay, in combination with the clec tromagnets, the vibratory armatures II II, one of said armatures, as IT, being extended to a point behind the other, and provided at one side with an insulating-block and at the other with a contact-block, substantially as set forth.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.-

GRANVILLE T. WOODS. Witnesses:

L. M. Hosm, G. I). KERR.

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