US1180720A - Circuit-controller. - Google Patents

Description

W. K. HOWE. CIRCUIT CONTROLLER.

APPLICATION FILED NOV. 25, 1913.

1 180,72?. Patented Apr. 25, 1910.`

Y IMI 35 u v1 f M1 e 20 a @gh 26 5 6 47 46 E n mi Z5 /4 IIIIP- g 40 UNITED sTATEs PATENT oEEroE.

WINTHROP K. HOWE, OE ROCHESTER, NEW YORK, AssIGIvoE To GENERAL RAILWAY SIGNAL OOMIANY, or GATES, ,NEW YORK, A CORPORATION or NEW YORK.

CIRCUIT-CGNTROLLER.

`Monroe yand State of New York7 have invented a new and useful Circuit-Controller',y

Ofwhich the following is a specication.

lmovement of the circuit controller This invention relates to a circuit Acontroller and more particularly to a circuit controllerhaving three operative positions. Such a circuit controller is most used in what isknown asa three-position relay, employed in railway signaling, but the in vention may be used in other situations or under other conditions where its novel features may be availed of advantageously.

The more special Object of this invention is to provide a simple and efficient threeposition relay or circuit controller capable of preventing the flashing or operation of a danger signal lamp or device in the time interval between lighting or operatingl respective clear and caution signal lamps or devices, and to assure lighting or operation of' the danger signal lamp or device when or after the clear and caution lamps or devices are extinguished or inoperative. l

`Another object of the invention is the construction of a circuit controller of the kind specified which can be used for closing a circuit in the central or mid position of the three positions which the circuit controller is adapted to assume.

Another Object of the invention is to provide a construction and arrangement of parts which will prevent closing of the Cirl.cuit which is closed, by the circuit controller when in its mid position by a complete l from either one of its eXtreme positions to the other.

Other objects and advantages' will appear as the description of the invention progresses, and the novel features of the invention will be particularly pointed out in the appended claims.v

In describing the invention in detail, reference ishad tothe accompanying drawing, wherein I have illustrated one physical embodiment of my invention, and wherein like characters of' reference designate corresponding parts throughout the several views, and in which Figure 1 is a perspective .view of a con- Specication of Letters Patent.

Application filed November 25, 1913.

Patented Apr. 25, 1916.

Serial No. 302,854, I i

struction embodying my principle showing the main and auxiliary circuit controls in one extreme position and circuits of a `tliree-light signal controlled by the relay;

Fig. 2, is a view similar to Fig. l, except that the controls are shown in a mid po sition; Fig. 3, is a view similar to Fig, 1, except that the controls are shown in thev other eXtreme position.

l, is an oscillatable member or head-piece the two ends of which are insulated from each other in any approved manner as by the strips 2, which is pivoted at either end in an approved manner as by the pivot pins 3 and el and may be connected in any suitable manner so as to be oscillated by the armature shaft of a suitable relay, such .for instance, as that shown in the patent granted to Winthrop K. Howe, March 5th, 1912, #1,019,017. At right angles and fastened. rigidly to the oscillatable member 1 by means of' screws 5 and 6 are metallic.. conducting contact arms 7 and 8.V i

Arm 7 bears upon its Outer end the metallic spring conducting Contact fingers 9 and l0. The contact finger 9 is adapted to touch contact 11 whenmoved upwardly and the contact finger 10 is adapted to touch contact 12 when moved downwardly. Bearing upon and rigidly fastened to contact arm 8 are metallic spring conducting control fingers 1-9 and 20 which are adapted to at times bear simultaneously against contacts 13 and 1l respectively when the 1nember 1 is in normal mid position.

21 is a rod which passes through and is rigidly fastened to the outer end of contact arm 8 and which also passes freely through slots in the control fingers 19 and 20. At respective opposite ends of rod 21`are fixed the washers and 23 whichlimit the outward movement of fingers 19 and 20. The space between the outer operative faces of the two auxiliary control lingers 9, 10, is considerably narrower than the space between the outer operative faces of the two main control fingers 19, 20. Fastened rigidly to main control linger 20, is a. pneumatic dash-pot cylinder member 25, having a chamber 29, in which may move a piston 26, which is rigidly held to the opposed control finger 19, by a bentrod 27. An air vent orifice Q8, is formed in the cylinder 25, at or near its closed end. When the member l is in the mid position of Fig. 2, it is' balanced by the counter-weight 30, which is fastened to member l in any convenient manner such as by rod 31, and as Will be readily seen, will return said member to its normal mid position after its movement to either extreme position of Figs. 1 and 3. Contacts 11 and 13 are supported by means ot' member 15 andare insulated from each other by means of insulation strip 17 which is inserted in member 15. Contacts 12 and 1-l are supported by means of member 16 which is separated in the same` manner as member 15 by means of insulation. strip 18.

ln F ig. 1 the member 1 is shown moved to the extreme upper position, closing a circuit for lamp 35. rlhis circuit is vas follows:

positive terminal of battery 3'?, wire 38, arm Y, Contact il, Contact 11, post 32, wire 33, lamp 35, wire 3G, and wiref to the negative terminal of battery 37. The closing of this circuit causes lamp 35, which is .colored green, to be lighted to signify clean In Fig. 3, the memberlis shown moved to the extreme lower position, closing a circuit for lamp 48. This circuit is as follows: positive terminal of battery 8T, wire 38, arm T, contact 10, contact'lQ, post 46, wire 47, lamp 48, wire -l-fl. and wire 34 to the-negative terminal of the batter)7 37. The closing of this circuit causes lamp 4S, which is colored yellow, to be lighted Yto signify cautionf7 1n Fig. 2, the member 1 is shown in the mid position closing a circuit for lamp -l-l. This circuit is as follows: positive terminal of battery 39, wire 40, post 41, contact 14, contact 20, arm 8, contact 19, contact 13. post 42, wire 43, lamp 44, and wire #l5 to the negative terminal of the battery 39. The

' closing of this circuit causes lamp 44. which is colored red, to be lighted to signify danger.

From the description hereinbefore given. it will be seen that when the circuit controller is in one extreme position, a green lamp is lighted; when the circuit controller is in another extreme position a yellow lamp is lighted; and when the circuit controller is midway between two extreme positions a redlamp is .lighted These lamp colors are respectively indicated bv the letters G, Y, R. in all three figures of the drawings. The fact that different color lamps are lighted in the threel positions of the circuit controller, can be, as is well understood by those skilled in the signaling art, taken advantage of for the purpose of conveying information to the operator of a train in regard to how he should control that train, and as is well understood by those skilled in the signaling;r art, a train l at. by its mere movement upon the rails of a track, cause the member 1 to assume the three dilierent positions set forth in this description.

(lne diiliculty met in three position circuit controllers that in passing from one eX- treme position to the other extreme position, the circuit formed in the mid position of the circuit controller. is momentarily closed, thereby causing an objectionable fiash of the danger7 signal light included in that circuit. To fully obviate this serious objection this invention introduces a preventive or retarding device preventing closing of the danger lamp lighting circuit during the time interval between passage of the auxiliary control member from either one of its opposed fixed contacts 11, 12, to the other of said contacts for making and breaking the two. circuits operating the respective clear and caution signal lights or devices. Such preventive or retarding device may be variously formed or constructed and it may act pneumatically. mechanically, electrically or otherwise, provided it have the above named preventive or retarding effect upon the compressed or retracted or narrowed main circuit control to temporarily dela its movement to both opposed relatively Xed contacts. The illustrated dash-pot device is merely an example of such a preventive or re# tarding device and when it is used the iston 26, when the' control supporting mem er 1, is in either eXtreme position, is forced outwardly in the cylinder' 25 by pressure of either control finger 19, or Q0. against the respective opposed contact 13, or 14.'.'15

shown in Figs. 1 and 3 of the drawings.-

This forced approach of the control fingers toward eachother is suflicient to temporarily prevent them spanning the distance between contacts 13. 14, consequently as the control actuating member 1, moves from one extreme position to the other extreme position the control fingers 19, 20, in passing the mid-position cannot touch both contacts 13. 14. as they are not sufiiciently far enough apart to do so', and-further, there is not sufficient time for the fingers 19, 20. to move far enough apart to thus touch both contacts 13. 14, because in"doing so the piston Q6, must be pushed inward nearly or quite to the closed end or head of the dash-pot cylinder 25, and this full piston movement is retarded because of slow escape of air from behind the moving piston through the cylinder vent orifice 28, whereby spanning of the full distance between contacts 13. 14. by the main control fingers 19. 20, cannot he effected in the short time elapsing during movement of thecontrol actuating member' 1, from one extreme position to the other. or during the time required for the auxiliary control 9, 10, to pass from either fixed contact 11, 12, to the other of said contacts.

Fig. 1 of the d 1awings shows that when the circuit controller moves fully upward to one extreme position the circuit tln'ough battery 537, to light the green lamp 35. is closed through the auxiliary control tinge.' fl, and contact 11. and the main control is compressed or contracted or narrowed by pressure of its finger 19; upon the contact 13, while its vfinger 20, does not touch contact 14, thus pieventing closing of the red lamp circuit through the other battery 39. Fig. 2, shows that when the controller is in the normal balanced mid-position the main control fingers 19, 20, expand or widen to touch both contacts 13, 14, while the normally narrower auxiliary control fingers 9, 10, are free from both contacts 11, 12, and consequently only the red lamp i4 now will be lighted by closureof its circuit through battery 39, and Acontacts 18, 14. Fig. 3 shows that rwhen the controller is moved fully downward to its other extreme position the main control is again compressed or narrowed by pressure of its finger 20, upon the contact 14, while its finger 19, does not touch contact 13, thus again preventingl closure of the red lamp lighting circuit through battery 39, but now the auxiliary control finger 10, touches contact 12, and thus closes the circuit through the battery 87, for' lighting the yellow lamp e8, while both the green and red signal lamps remain unlighted or inoperative.

It is obviousthat the support or headpiece member carrying the main and auxil iary circuit controls may have any desired form and may have other than oscillatory movement to cause the attached circuit controls to operate relatively'to each other and to their opposed relatively fixed contacts in.

the manner and for the purposes substantially'as hereinabove set forth.

Although I have particularly described the construction of one physical embodiment of my invention` and explained the operation and principle thereof; nevertheless, I desire to have it understood that the form selected is merely illustrative, but does not exhausty the possible physical embodiments of the idea. of means underlying my invention.

What claim as new and desire to secure by Letters Patent of the United States` is:

1. In a circuit controller, in combination:

an operating member having two .eXtreme positions and an intermediate position; circuit controlling means governed by said.

member and operated when said member is in either of said extreme positions; other circuit controlling means governed by said member and operated 'when said member is in its intermediate position; and means for preventing the operation of said other circuit controlling means when said member moves continuously from either extreme position to the other extreme position.

2. In a circu'itcontroller, in combination: an operating member having an intermediateposition and two extreme positions; a

vcircuit controlling device; means governed by said member for closing said circuit controlling device in the intermediate position of said member when said member moves continuously from either extreme position to the other extreme position.

3. In a circuit controller, in combination: an operating member having an intermediate position and two extreme positions; circuit controlling means governed by said member; means for cooperating with said circuit controlling means when Said member is in its intermediate position; said circuit controlling means having a circuit closing condition in which it can coperate with said last mentioned means and an ineiective condition, said circuit ycontrolling means having a tendency to assume its circuit closing condition and being automatically governed by said member to assume its ineffective condition when said member is in either of its extreme positions; and means for preventing said circuit controlling meansfrom changing from its ineffective condition to its circuit closing condition until after an elapse of a time greater than Ithe approximate time required for said member to move from either extreme position to the other extreme position.

i. A circuit controller comprising main Aand auxiliary conductive circuit controls,

and an. opposed pair of relatively fixed circuit closing contacts for each control, the main control being adapted to engage both of its contacts when the controller is in normal mid-position, said main control also being capable of contraction to then he narrower than the space between its two contacts, combined with means temporarily preventing full expansion of the contracted main control to-its opposed contacts while theauxiliary control is passing from either one to the other of its opposed contacts.

A circuit controller 4comprising main and auxiliary conductive circuit controls, and an opposed pair of relatively fixed circuit closing contacts for each control, the main control being adapted to engage both of its contacts when the controller is in normal mid-position, said main control also being capable of contraction by pressure against either one of its opposed contacts to then be narrower than the, space between its two contacts, combined with means temporarily preventing full expansion of the contracted main control to its opposed conv tacts while the auxiliary control is passingfrom either one to the other ot its opposed contacts.

(i. A circuit controller comprising mainv and auxiliary conductive :circuit controlS,`.`-.

and an opposed pair of relativelyvl fixed ciicuit'closing contacts for each control, the main control being adapted to engage both ot its contactswhen the controller is in vclosing contacts fbi-1 control being adapted to' enga contacts when .the Acontroller*is 1 tacts, combined with means temper its contacts, said main control also being capable of contraction to then be narrower" than the space between its two contacts, combined with means temporarily preventing full expansion of the contracted main control to-its opposed contacts while the auxiliarycontrol is passing from either one to the other of its opposed contacts.- v

7. A circuit*controller'comprising a .mov-gy able support, nia-in .aiidcauxiliary conductive.' circuit controls 'held to saidsupportl. and` lan opposed pairof (relatively liie'id circuit each controljft'h'e main y otrlioitrits/ n normal l bein@ nar-rd weii n 1 than: theispacebetween its two'fcbiita'cts," combined With-:means temporarily'lpieiieiitfl ing full expansionA ot" the contracted' inain' control to its opposedqcontacts while the auxiliary control niovedby' the support is passing from either one tothe. other of its opposed contacts.l

8. A circuit controller comprising niorable support, main and auxiliaryfconductive circuit controls held to said support, and an opposed pair of relatively fixed circuit closing contacts for each control, the main control being adapted to engage both of its contacts when the controller is in normal midposition, and means balancing the controller n mid-position, said main control also bcing capable of contraction to then be nai'- i'ower than the space between its two con aiily preventing full expansion et' the contracted main control to its opposed contacts while the auxiliary control moved by its support is passing from either .one to the other of i'ts opposed contacts.

9. A circuit controller comprising a movable support including two relatively insulated parts, main and auxiliary conductive circuit controls held one to cach ot' said parts, and an opposed pair of relatively xed circuit closing contacts for l:ich control. tlic main control beingadapted to engage both of-its contacts when the controller is in normal mid-position. said main control also being capable of contraction lto then be narrower than the space between its two contacts, combined with means temporarily preventing full expansion ot' the contracted main control to its opposed contacts while the auxiliary control moved by the support is passing from either one to the other ot its opposed contacts.

l0. A circuit controller comprising main and auxiliary conductive circuit controls, and an opposed pair ofrelatively lixed circuit closing contacts for each control. tbe contacts at cach side or tace ot' the two controls being respectively held by two binding posts respectively fastened to relatively Yrinidposition,said; inain icont'rolQ of ltscontacts when the. p v n'ial nud-position.y said main control also bej tol comprising two Aposed contat' insulated portions otoiieftixedsupport, the

niain control being adaptedgtoiL-ngagc both controtlc-.r` 'is-.iu noring capable of coiitrzu'tioirto then be narrower than the spacebetween its two contacts, con'ibined with means teniliorarily pre.

venting full expansion oi' the contracted inaiiitcontrol to its opposed contacts while the auxiliary control is passingI troni either oneto the other olE its opposed contacts,

`1l. In acii'ciiit controller, the main conl resilient fingers, coni-A {iii'ie'dtwithtwo opposed relatively fixed circuitclosingI` contacts normalliy ei'igaged by L fingers vwhich are coi'itractible toward lrotli'erby pressure against either op- I, and means carried by the conacted fingers and :it-.times retarding or temporarily preventing Vtheir expansion to both' contacts.

l2. ,Inga circuit controller, the main control'comprising two'resilient fingers., combined with two opposed relatively lixed circuit closing contacts normally engaged by `the fingers which are contractible toward 'each other by pressure against cit her op dash-pot comprising a vented cylinder held to one linger and a piston held to theotlier finger and movable in the cylinder thereby rctarding expansion of the contracted fingers to both contacts.

posed contact, and a 13. In a circuit controller: two fixed contacts; electrical conducting resilient contacts electrically connected togethecpositioned between thc two tixed contacts and bridging the saine; means for causing one of the resilient contacts at times to break con tact with one of the fixed contacts, and at times to cause the other resilient contact to break Contact with the other fixed contact; and means for preventing the resilient co'ntacts from bridging the fixed contacts during a continuous movement ot the resilient contacts 'from the position in whichone resilient contact breaks contact nithonc fixed contact to a position fin which the other resilient contact makes contact' with the other fixed contact.

14C. A circuit controller comprising main and auxiliary conductive circuit controls, and an opposed pair of relatively fixed cirn cuit closingr contacts for each control, the

main control being adapted to engage hotliot' its contacts when the controller is in normal midsposition, said main control also being capable of contraction to then be narrower than the space between its two contacts` combined with means temporarily preventing i'ull cxpansion'of the contracted main control to its opposed contacts while the auxiliary control is passing from either one to the other of its opposed contacts, three signal devices, a source of electric energy, means completing two respective circuits from said ,energy source.' through the its engaged contacts to' the third signal deauxilia-ry control andits two respective convice for independently operating it, subtacts to two of said signal devices for indestanti'ally as herein set forth.

pendently operating said devices, a second I VVINTHROP K. HOVVE. 5 source of electric energy, and means com- Witnesses:

plating a third circuit from lsaid second en; LIILIAN L. PHILLIPS,

ergy source through the main control and CHRISTINE BRERE'roN.

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