US1174911A - Relay. - Google Patents

Description

. Q M AV COPY M H. SUREN.

RELAY APPLICATION FILED JUNE I, 19M. 1,174,9151. Patented Mar. 7,1916.

' 2 SHEETS -SHEETI 'Mifleasea To all whom it may concern:

awashi a, an nnnnnan ness I sensation 3 Be ii; known time I, NATHAN SHEEN, a citizen of the United States, Needle-11min the eountyof Norfolkand State of Massachusetts, have invented an Improvement in Relays, of which the following is a speeifieai ion,

This invention relates to relays adapted for use insignaling systems and particularly fire-alarm tel'egraiph systems.

The object ofthe invention is to provide a relay especially adapted to control the circuit or an elecbricallyoperated whistle, horn,

' signaLr-ecorder, -or other signal receivingdevice for 'fi're alarms and other signals,

whereby the blasts of the Whistle and horn and the dashes of lahe;signal-recorderwill have a fire-determined, and uniform length --ter or other cause.

regardless of theduration or the length of the bre'aks produced by the signal-transmu- In thegenerally accepted standard'oi firealarm s stems, a=elosed cirouit 1s emphiyed,

and the circuit-controlling"wheels of the signaLtranSmitter,are er the skeleton type,

whereby during the "operation thereof, the

cirouijz 'closing periodsfiire of the same, duration and the dpen-enfomt perlodsare of three different durations, 'tl1e [shortest period being between'the successive 'closures of a number group of around of a signal, the

actuatlng mechan smg Fig. e lsa diagram 7 of 'a'flbcal ciroult whieh includes themrcmt next longest period being between the successi e number-groups ofa round of a, slgnal and thelongesb period being hetween'the successrve rounds of a signal, or, as it is some- "timesj stated, between the successive repetitioiisi of thesignal, it being understood that usually" the signal is repeated four times,

ea'ch beingeonnnonly "i ermed around. The blasts of "the Whistleand horn, and the dashes: of the signal-recorder, aregiven dun mgrhe aforesaid open-circuit periods and ii;

1s 'very' important that they shallbe of approximately uniform duration regardless oi: the varying duration or ahe open-errant periods.

Figure a plan View of: a relay embody in'g' this linvention; Fig! 2 is elevation of the'same. "Fig; '3 is a'transverse yertieai section'of the sp-rlng'drum of ihe timed controller. Fig. 5 is amodifiedform of relay wherein the spring of the timed actu- I atingmechanism is energized by a relay magnet. Fig; '6 is an enlarged detail of the residing at scope of my invention.

' mean Marie, pea-er controlling and winding members a modi fied form of relay shownfin Fig-f5. Fi 7 is a diagram of a localcireuitwhich hcluo the circuit controller for the modified-"form of relayof Fig. 5.

The local circuit-controller whiehco spends with the usual relayo'oniacfsf-i's rep resented .by resilient contaeflmemb'ers v i and 12, andra pivoted arm 15'- ariahgedad jaceni; the member 12 for nroving iti-nto gagement: with the member 10 L0- c ose local -cireuitv 13 containing signal 'reoef' instruments 14, such for instance, as v ties, horns,recorders, bells, etc-. siren-10' circuit; is here shown as opengihe-Ohth membersbeing in disengaged positioz'il h sooiaied with said 'oirouit "controller timed actuatingmechanisma arranged operate the arm 15 to close the confiac'fi me hers for a short-period of: time upon e'z'ihh' operation thereof, and allsaidclosure winbe of substantiallythesame durati Ii t s; resulting in producing blasts o f f unifoi rii length on'the Whistle and horns an'dda e of uniform length on the recorder, regs less of the length of time the" controlli g circuit is open. One form or timedaciraf ingfmeohanism is here shown merely/1t 'illu'sftrate my invention, for it will be under that other forms having, substantially same capabilities come withinftlie" spiri The timed" actuaizing-mechanisnf hei shownwill now befdescribedi" l6'irefpreseniis 9o an actuating-disk for the arih 15 'ha vingd pressions arranged at regular intervalsj tfo; receive a projection on said arm and int"? engagement witlrvvhich said arm is heldhy the resilient contact-member 121 The p tions of said disk between said depressions are of uniform length, so that as thef'di rotates said arm will be moved byYiflfor periods of time corresponding to the' le'ngth of said portions and the speed ofrotah v of she disk, but in all instanceswill beffo a periods of uniform duration, S'aiidjac I ing-disk 16 is secured ton spring-d1 barrel 20, which is arranged uponv a l8,said drum being hereshown asof yl drical form, and Containing asprin- 121, the outer end of which i drum and theinnerend of which isfij nected with the shaft or a hubthere n. 1 Said drum has an end wall 25 with a tooth fdillo periphery andiwith a'plurality of pairsjof' a. detents'QS, 27, arranged upon its outer is conneetegl t side or face, said pairs being arranged at equidistances apart and the detents of each pair being arranged at dilterent distances from the edge of the end wall, so that all the detents 26 are' arranged to move in one path and all of the detents 27 are arranged to move in another path, as the drum rotates. A detaining-lever 30 is provided for holding the drum in a predetermined position with the actuating-disk in position to admit of the projection on the arm 15, entering one of the depressions therein, so that the contact-members are normally disengaged. Said detaining-lever is secured to a pivot-shaft 31 to which an :u'mature-lcver 32 is secured, the armature of which is arranged for cooperation with a relay-magnet 34, which is arranged in the controllingcircuit in any usual or suitable manner.'

Said detainingdever also bears a timingelement which is arranged for engagement with the toothed edge of the end wall of the drum but is normally disengaged therefrom when the detaining-lever is held by the attracted armature, and is permitted to move into engagement therewith upon retraction of the armature. Said timing-clement, as here shown, Comprises a toothedwheel 36 seci'red to' a shaft bearing an escape-wheel 37, which is engaged bv a pal-.

let 38, secured to a shaft 39, all of said shafts being borne by the detaining-lever. The engaging-portion of the detaining-lever, which is arranged for engagement with the detents on the drum, consists of an angularly formed extension, and said engaging-portion normally engages one of the detents nearest the edge of the end-wall, being theoutermost detcnt of the pair, when the armature is in its attracted position, but upon retraction of said armature said engagingportion is moved to disengage said detent and to move into position to engage the other or innermost detent of the next pair, which is arranged in the other path or remote from the edge of the end wall of the drum, thereby to check rotation of said drum, in case said detaining-lever still remains in such position at the moment the said detent arrives in position to engage it, but in case said armature should have been attracted in the meantime then said engaging-portion will engage the outermost detent of the next pair of detents, thereby to check rotation of the drum.

It will be observed that upon retraction of the armature the toothed-whecl of the timing-element is moved into engagement with the toothed end'wall of the drum, thereby to retard rotary movement of said drum during the time engagement continues, thereby insuring a predetermined period of time of operation for said drum each time the armature is retracted. The several pairs of detents are arranged relatively to each other to correspond with the depressions in the actuating-disk, there being one pair for each depression, so that while the drum is rotating the arm 15 will be moved to hold the contact-members in closed position, thereby insuring a closure of the local-citcuit for a uniform length of time. In case the armature remains retracted as it will do upon the occurrence of a prolonged break in the controlling-circuit, rotary movement of the drum will be checked by one of the innermost detents but at such timethe arm 15 will be permitted. to move inward to enter one of. the depressions, more or less, so as to permit separation of the contactmembers, and upon subsequent attraction of the armature said drum will be again released and permitted to rotate. but suchsub- I sequent rotary movement will be short and of very short duration, particularly as the drum is at such time unrestrained, and the result of such short movement of the drum will be inconsequential.

It is important that the spring for moving the drum shall be energized automatically as it is not convenient or desirable to provide a lon spring which may be manuallyv wound ant arranged for many repeated operations. Hence means are herein provided for winding said spring by means controlled by a magnet, which is arranged in the localcircuit or by the relay-magnet itself.

Referring to Figs. 1, 2 and-4, a magnet 40 is arranged in the local-circuit, the armature'lever 41 of which bears a rack-bar 42, arranged for engagement with a ratchetwheel 43, which is secured to the shaft or hub connected with the inner end of the spring 21, and upon attraction of the armature of said magnet said spring will be energized. Referring to Figs. 5 to 7 a similar arm 45, is secured to the armatureshatt of the relay-magnet, said arm bearing a rack-bar 46, which is arranged for engagement with a ratchet-wheel upon attraction of the armature to energize the spring. The construction of the means here shown. for winding the spring, however, may be changed,-so far as my invention is concerned, asit is not material, the main point being that the spring is wound automatically by means controlled by amagnet in the local-circuit or by the relay-magnet.

I claim 1. In a relay, the combination of a circuit-controller, a timed actuating-mechanism adapted when released to operate it to close a circuit for a predetermined period of time, and then open the circuit regardless of whether its releasing-means remains in its abnormal position or returns to its normal position, and a relay-magnet arranged to control the release of said timed actuatingmeehanism upon the retractive movement of its armature, substantially as described.

2. Ina relay, the combination of, a circuit-controller, a timed actuating-mechanism adaptedwhenreleased to operate it to close a circuit for a predetermined period of time, and then open the circuit regardless,

of whether its releasing-means remains in its abnormal position or returns to its normalposition, and a relay-magnet arranged to control the release of said timed actuating-mechanism upon the retractive move ment of, its armature and subsequently to control the stopping thereof when in either its retracted or attracted position, substantially as described. a

3. In a relay, the combination of a circuit-controller, a timed actuating-mechanism adapted when released to operate it to close a circuit for a predetermined period of time,,and then open the circuit regardless of whether its releasing-means remains'in its abnormal position or returns to its normal position, and a relay-magnet arranged to control the release of said timed actuating-mechanism upon the retractive movement of its arn'iature,- and automatic-means for winding the spring of said timed actuating-mechanism upon each operation thereof, substantially as described.

4. In a relay, the combination of a circuit-controller,: a timed actuating-mechanism adapted when released to operate it to close a circuit for a predetermined period of time, and then open the circuit regardless of whether its releasing-means remains in its abnormal position or returns to its normal position, and a relay-magnet arranged to control the release of said timed actuating-mechanism upon the retractive move- -ment of its armature, and means arranged for operation by the relay-magnet to energize the spring of the timed actuating mechanism upon each operation thereof, substantially asdescribech p 5. In a relay, the combination of a circuit-cmitroller, a timed actuating-mechanism adapted when releasedto operate it to close a circuit for a predetermined period of time and then open the CllClli) regardless of whether its relcasinganeans remains in its abnormal position or returns to its normal position, a detaining-lever normally engaging said mechanism, and a relay-magnet, the armature of which is arranged to operate said detaining-lever to release said mechanism upon its retractive move ment, substantially as described.'-

G. In a relay, the combination of a circuitcontrollcr, a timed actuating-mechanism adapted when released to operate it to close a circuit for a predetermined period. of time, and then open the circuit regardless of whether its releasing-means remains in its abnormal position or returns to its normal position, a detaining-lever normally engaging said mechanism, and a relay-magnet, the armature of which is arranged to operate said detaining-lever to release said mechanism upon its retractive movement and subsequently to stop said mechanism when in either its retracted or attracted position, substantially as described.

7. In a relay, the combination of a circuit-contr0ller, a timed actuating-mechanism adapted when released to operate it to close a circuit for a predetermined period of time, and then open the circuit regardless of whether'its releasing-means remains in its abnormal position or returns to its nor-- mal position, and having one or more pairs of detents arranged to move in two separate paths, a detaining-lever normally engaging a detent movable in one of said paths and arranged for movement to engage a detent which is movable in the other path, and a relay-magnet, the armature of which is arranged to move said detaining-lever out of engagement with its normally engaged'de tent and into position to engage a detent moving in the other path upon its retractive movement and then into position to engage a detent in the same'path upon its subsequent movement, substantially as described.

8. In a relay, the combination of acircuit-controller, a timed actuating-mechanism adapted when released to operate it to close a circuit for a predetermined period,

of time, and then open the circuit; regardless of whether its releasing-means remains in its abnormal position or returns toits norpair to release said mechanism, and subse--" quently to'engage either of the detents of a pair to stop the mechanism according to its position, substantially as described.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing Witnesses.

NATHAN H. SUREN.

Witnesses:

FRANK J. JOFFREY, G. Bissnrr.

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