US922099A - Polarized relay. - Google Patents

Description

R.. L. DEAN.

PDLABIZED RELAY.

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Patented May 18, 1909.

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POLARIZED RELAY. APPLIGATIDN rum rn.e,1eoa.

Patented May 18, 1909.

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ROBERT L. DEAN, 0F 'KANSAS UlTY, MISSOURI, ASSIGNOR TO DEAN RAPID TELEGRA Pll C0.,

i A CORPORATION OF ARIZONA. TERRITORY.

POLARIZED RELAY.

specification or Letters Patent.

Patented May 18, 1909.

Application led February 6, 1908. Serial No. 414,462.

-of Missouri, have invented certain new and useful Improvements in Polarized Relays, of which the following is a specification.

My invention relates .to an improved po larizedrelay which may be ein loyed for general purposes, but is particular y adapted or a printing-telegraph circuit or similar s stein where impulses varying in length and irection are transmitted over a line wire to a receiver.

In ordinary polarized-rela s employingbut one Ivibratory ton ue, the atter remains in the position to w ich it has been last attracted with the objectionable result that it is impossible without special provision, to send two successive impulses in the same direction. In others' the vibrator tongue is held midway between the poles o the electromagnet by sprin s, so that it may respond to successive impu ses llowing in the samedirection. One objection to this arrangement is that one spring will soon become weaker than the other and permit the stronger to draw the tongue closer toone pole than the other. 4A further objection is that the sprin s are comparatively slow to act, and retar the vibratory movement of the ton ue to such extent as to materially reduce tiliec'apacit of the line wire, andalso prevent the reeor ing instrument of the rcceiver from printing clear, sharp characters? I overcome these objections by employing two tongues, two sets of contact-stops, and

, means for restoring the tongues to normal after being actuated by the electromagnet of the relay.

Referring now to the accompanying drawings illustrating the invention, Figure 1 represents a side elevation of a polarized-relay provided with my improvements. Fig. 2 is a plan view of the same. Fig. 3 is a broken cross-section on line Ill-III of Fig. 2. Fig. 4 is a broken cross-section on line IVIV of F ig. 2. Fig. 5 is a broken detail section` on line V-V of Fig. 2. Fig. 6 is a detail front elevation of the tongue-restoring magnets with the vibratory tongues in cross section. Fig. 7V shows the relay arranged in n telcgraphic circuit.

1 designates an insulating buse upon which is mounted a permanent magnet 2, provided at its lower end with an electromagnet 3, having adjustable polar projections 4 and 5.

Gund 7 designate two vibratory tongues arranged one above the other, and independently mounted at their rear ends upon an axis 8 secured to the upper pole of ma'net 2. Tongues 6 and 7 extend between poles 4 and 5, and their free ends normally engage the diagonally-opposed insulated terminals a l1 of two sets of stops 9 and 10, respectively, carried b' two Varms A11, 11 secured to the upper en of a standard 1,2, resting u Avon base 1. Une of said arms is insulated rom the standard by fiber 1 3 to prevent the current short-circuiting from one side of the stops to the other. Tongue 6 is adjusted close to pole 4 so that it will be normally attracted Jro thereby into Contact with the insulated termina] of stops 9, while tongue 7 is ad usted close to pole 5 so that 'the attraction thereof will normally hold the tongue in contact with the insulated terminal of stops 10, see Figs. 2, 4, and 7. The stops are adj ustable in arms 11 so that the members of each set may he adjusted a art or toward each other and thus regulate t 1e length ol the tongue movements.

14 15 designate two tougnci-estoring inagnets arranged at opposite sides of the tongues, the former of which has n. polo 16 op iosite tongue G, while the latter has a )ole 17 opposite tongue 7 so that said poles will have greater attraction for their respective tongues. `Magnets 14 15 are provide-.l with Vthreaded stems 18, which extend loosely through two brackets 19 und are engaged by nuts 20 whereby the magnets may be ad justed apart. 21 designates a pair of coil s rings interposed between the brackets and t ie adjacent ends of the magnets, to push the latter toward the tongues when nuts 20 are loosened. By thus adjustably-mounting the magnets 1415, the force with which their magnetic fields act upon the tongues may be r ulated as desired.

iln the iagrarn, F ig. 7, 1 have shown the relay arran ed in a telegraphic circuit consisting of a ine wire A connected at its ends to the poles of magnet 3 and two batteries B and (l of opposite polarity. l) designates u. transmitter for controlling the electrical impulses transmitted from said batteries.

E designates e. local cin-uit in which n. ro ceiver F is arranged. Suid circuit consists ol' a battery G, a circuit wire ll connect-ed at battery Iends to circuit wire H set to se'nd a positive impulse from battery B through circuit wire A In its passage through magnet 3 it j ill increase the mag-` netism of thc positivepole 3 and attract tongue G against the uninsulated sto -of set 9, trlius completiiigarlocal'circuit 't wire K, magnet 14, wire J, battery G, and tongue 6. Thalocal'circuit will energize magnet 14 so thatthe latter will instantly return the tongp' to the insulated member of set 9 when t 4e transmitter interrupts the ositive impulse. When a ne ative impulse is transmitted from battery the ne ative pole 3b of ma net 3 will become more ighly magnetized t an the opposite pole 3 and thus attract tongue? into contact with the live side of stops 10, so that a local circuit will be completed through wire I, magnet 15, circuit wire H, battery G, and tongue 7 This circuit will energize magnet 15 so that it will instantly return ton ue '7 to its normal position against the insu ated member of stops 10 when the ne ative impulse from C is interrupte Y Y Having thus describ d my invention, what I claim is: r

1. In a relay; a pair of vibratory tongues arranged in superposed relation, a pair of contact stops for each tongue arranged one on each side of each tongue, one of the stops of each pair of stops being insulated, said insulated stops being diagonally opposed to each other, a magnet for ycontrolling the vibratory movements of the tongues, and means for restoring the tongues 'to normal.

2l. In a relay, a permanent magnet, having an electro-magnet at its loweren polar projections carried `by said' electro-magnet, `a pair of vibratory tongues arranged in superposed relation and carried by the upper endv of said permanent magnet, a standard hav I arranged one above lthe other,

rough lby each arm, and

vhaving Apolar projections.' disposed on o ing a pair of spaced vertical arms insulated from each other, said tongues extending in the space between Ysaid arms, `tact stops carried by each arm to engage said a pair of contongues, the lower stop of one air and the upper stop of the opposite pair o stops being insulated, and means for restoring the tongues to normal.

3. Ina relay, a pair of vibratory tongues a permanent magnet to the upper end of which each of `said tongues is secured, an electro-magnet having polar projections on opposite sides of the tongues two pairs of stops arranged one pair on eac Yside of each tongpe, the lower stoplof one pair of stops and t e upper stop f t e other pair of stops diagonally opposite said lower stop being insulated, and means to restore the tongue to normal. 4. In a relay, a pair of vibratory tongues, a permanent magnet, a common axis on one end of said magnet on which each of said tongues is mounted, an electro-'magnet carried by the other end of said permanent magnet and having polar projections disposed on opposite sides .of said tongues, a pair of spaced insulated arms on' opposite sides of t e tongues, a pair of contact stops carried a magnet for each tongue arranged on one side thereof.

5. In a relay, a permanent magnet, having a pair of vibratory tongues arranged one above the other and supported from one end of said magnet, an electro-magnet carried by the other end of said permanent magnet and P0 site'sides of the tongues, apair of space insulated arms, arranged on opposite sides of the tongues, a-pair of contact stops carried 'i

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