US1320247A

US1320247A - leake

Info

Publication number: US1320247A
Authority: US
Publication date: 1919-10-28
Anticipated expiration: 1936-10-28

Description

` n. C. LEAKE. ELEcmoMAGNEnc DEVICE.' APPLICATION Fl-LED WAR; 28. |916.

Patented Oct. 28, 1919..`

4 aliens-SHEET l y BY Arm/mfr R. C. LEAKE.

ELECTROMAGNETIC DEVICE. APPLICATION FILED MAR. 2s. :91s,

, 1,320,247'. Patented Oct. 28,1919.

, 4 SHEETS-SHEET 2.

' Afrik/vn n. c'. LEAKE.

ELCIROMAGNETIC DEVICE. Arrucmou min mm. 2s. 191s.

1,320,247.l o l vPatented Oct. 28,1919.

4 SHEETS-SHEET 4,4.

FIG. 5.

- l fwn/ron v I j 90,?? X; ATTORNEY* 'y UNTTED sTATEs PATENT oEEIoE.

RICHARD o. LEAxE, or EoCHEs'rEE, NEW YoEK, AssIGNoE To GENERAL RAILWAY-a.,

SIGNAL COMPANY, oE GATES, NEW YoEK, A coEPoEATIoN or NEW YoEx.

ELECTECMAGNETIC DEVICE.

Specication of Letters Patent. (Patented 001;, 28, 1919,

Application mea Maren 2s, 191e. serial No. 87,191.

To all whom z't may concern Be it known that I, RICHARD C. LEAKE, a citizen of the United States, and a residentI of the city of Rochester, in the county of Monroe and State of New York, have invented a new and useful Electromagnetic Device, of which the following is a speci-,

y to so construct a relay that a definite and relatively prolonged period will elapse after its energization or denergization before the circuits controlled thereby are altered from opened to closed or vice versa.

A further object of the invention is to lso construct a relay of the type specified,

that the circuits controlled thereby will after the lapse of the definite and relatively prolonged period be quickly opened or closed.

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

In describing the invention in detail, reference is had to the accompanying drawings, wherein like characters of reference designate corresponding parts throughout the several views and in which:

Figure 1 is a front elevational view, showing the denergized position of a relayfembodying the invention with the front cover removed and certain parts broken away to more 'clearly show the construction; Fig. 2 is also a front elevational view but shows the parts in their energized position, the parts broken away in Fig. 1 being shown in Fig. 2 in full; Fi 3 is a partial vertical section taken on t e-line 3-3 of Fig. 1,

' viewed in the direction of arrow a; Fig. 4

is a vertical section taken on the. line 4-4 of Fig. 3 viewed in the direction of arrow b; Fig. 5 is a vertical section taken on the line 5 5 ofFig. 3, viewed in the direction of the arrow 0,' Fig. 6 is a sectional plan view taken substantially on the line 6-6 of Fig. 3 viewed in the directionof arrow d.

The relay consists generally of a casingI A, circuit controlling mechanism B and a motor C. 1

The casing A consists generally of two parts, best shown in Fig. 3, a main body ortion 2 and a cover-4. The cover 4 is i rmly attached to the casing 2 in any Well known and approved manner as by screws, which mayI pass through the cover 4. and into threaded holes 6, best shown in Fig. 1. Between'the main body 2 and the cover 4 1s placed a gasket 7 which renders the joint watertight. The cover 4 is formed with a large opening in which is placed a 'ane of glass 8 lso that the lmechanism wit in the casings may be readily inspected from without. The glass 8 is held in position by pins 9 and clips 10 best vshown in Fig. 3. Since the motor lforms Lno part of this mvention', it is not shown in detail and it may be of any suitable or vsell known construction and4 is arranged to rotate shaft 11 in one direction when it is set in operation. The motor is preferably mounted in protecting casing C.

Referring t'o Fig. 3, a shaft 11 driven by the motor has a collar 12 fastened thereto by means of a pin 13 best shown in Fig.. 6. Mounted looselyl on shaft 11 is a sleeve 14 on which are fixed a pinion 15 and a ratchet wheel 16. Between the collar 12 and the sleeve 14 is a Ifiber washer 17 and at the opposite -end -of sleeve 14 isan'other.fber washer 18, and bearing against washer 18 is another washer 191 into which is loosely pressed one end of a sleeve 19. Encircling sleeve 19 is a spring, one end of which bears against the enlarged portion of sleeve 19 and the other end against washer 191, which spring presses sleeve 14 against collar 12, making it difficult for the pinion 15 and theratchet wheel 16 to move independently of the shaft 11 but avoiding unnecessary shocks to the motor for the reason that when the mechanism'reaches the limits of its movement and is abruptly stopped, the motor vis allowed to'come to a gradual stop due to the slipping of the motor shaft 11 in its clutch. Mounted on the sleeve 14, but -free to turn thereon, is an escapement wheel 21. Bearing on the teeth of the ratchet wheel 16 are pawls 22 which are pivotally fastened to the escapement wheel 21 by means of pins 23 and which have their outward movement limited by stop pin 67 fixed in the escapement wheel 21. On one side of the case 2 best shown in Fig. 3 is a lug 24 having a bushing 25, screw threaded therein, which forms one' bearing for shaft 26, and the other bearing for said shaft is formed in like manner in a lug 27 on the opposite end of casing 2 best shown 1n Fig. 5. Mounted on the shaft 26 'and adapted to rock thereon is a pallet*l support 28, one arm of which has a U shaped end 281 and supports the' pallet 30 by means of pivot pin.31 and the

bearings

32 and 33 which 'are screw threaded in the U shaped end 281 of the pallet support 28. Each end of the pallet 30 best shown in Figs. 1, 2 and 5, is weighted and on its lower edge are two teeth 301 and 302 which are adapted to engage with the teeth 211 of the escapement wheel 21 and c ooperate therewith vin a manner which w11l be hereinafter more fully descrlbed.

' A counterwei'ght 34 is fixed to the shaft 26 and has,'on its periphery, teeth 341 whlch mesh with teeth on apinion 35, the shaft 36 for which is mounted 1n the bearmgs 37 and 38 which are screw threaded in

lugs

39 and 40 respectively formed integral with the casing 2, best shown in Fig. 3.-

Fixed in and projecting from both sides of the counterweight 34 is a pin 44, best shown in Fig. 3. One end of pin 44 moves in the slot 451 of a link 45 andthe other end .strikes the arm 282 of the pallet support 28 and lifts'l the pallet 30 out of engagement with the teethy 211 of the escapement wheel V21 after the counterweight has moved up to a certain point, which will be hereinafter more fully explained. The pallet 30 is lunited in its upward movement by -plns 46 which are mounted in the casings 2 and are lbest shown in Fig. 5.

' The pallet support 28 is spring pressed downwardly by 'a spring 47 which bears against the vertical armsy 283 and 28A1 of the pallet support 28, thegmovement of saidarms being limited by the head 481 of the stop bolt 48. It will be readily seen by referring to Figs. 1, 4 and 5 that if the stop bolt 48 is adjusted either` in or out, that the pallet 30 will be correspondingly raised or l-owered in its relation to the teeth 211 of the escapement wheel 21 and when the pallet 30 has been once adjusted to its proper position, the stop bolt 48 may be locked by screwing down the j-am nut 49 againstthe lug 50 of the Casin 2.

On the left hand side of Fig. 1 is a stop arm 52 which is mounted loosely on a bearing stud 51, supported by the

lugs

24 and 27 of the casing 2. Referring to Figs. 1 and 4 it will be seen that at the lower end of stop arm 52 is a projecting portion 521 lthat bears against -a sideof the counterweight 34 and acts as a stop therefor. The adjusting screw 53, screw threaded in the lug 54 of the casing4 2 Abears against the stop arm 52 and it 'may readily be seen, by referring to Figs.

v land 4, that adjusting the screw 53 in or by the stop arm has been* adjusted the screw 53 may be locked in position by screwing down the jam nut 55 against lug 54. As a result of the raising or lowering of the counterweight 34, it will be seen by referring to Fig. 4 that the pin 44 will be brought either nearer to or farther away from the arm 282 of the pallet support 28, and will also be correspondingly raised or lowered in the slot 451 of the link 45, and in this way the timing of the opening 4and closino' of the contacts is accomplished, as will hereinafter more fully explained.

To facilitate theI adjustment of the timing parts, al scale may be marked on the counterweight 34 in any convenient manner and a pointer to register with said scale may also be conveniently placed as for example on bearing screw 37, thus it will be apparent that after the calibration had n once made on a relay, changes in adjustment could be rapidly made.

Referring to Fig. l, contact carrier 56 is mounted on the pin 57 which is secured in a lug 58 of the casing 2. The said contact carrier 56 has on its left hand side a counterweight 561, which tends to rock it to the left, on its pin 57 thus -causing the contact lingers 59, which are insulatingly ixedrto the contact carrier 56, to be moved to the left and l lat their upper ends to coperate with insulated contacts 61 of binding posts 62 which are securely mounted in the top of casing 2. Y

vThe link 45 is loosely fastened at one end of the contact carrier 56 by .pin 63 and having at its other end a. slot 451, adapted to move freely on the pin 44 for part of the movement of the counterweight 34 and to be lifted by the pin 44 of the counterweight 34 for the balance of its movement. thus it will be seen by referring to Fig. 2 that the contact carrier 56 will be rocked on pin 57 and `the contact fingers 59 will break contact with contacts 61 and will make contact with insulated contacts 64 of the binding posts 65 which are also securely insulatingly mounted in the topof casing 2. The upward movement of the` Contact carrier 56 is limited 66 of-'the casing 2. In the top of the Casin A is an adjustable stop pin or screw 68 which limits the u'pward movement of the counterweight 34.

Fig. 1 shows the parts in the denergized condition of the relay, the -palletsupport 28 being vproperly adjusted in relation to the teeth 211 on the escapement -wheel 21 by means of adjusting screw 48, and the stop larm 52 beino' adjusted to bring pin 44 in the proper re ation to arm 282 of pallet support 28, to consume a lpredetermined length of time in its travel.

If energy is applied to the motor it will turn the shaft 1l in the direction of the arrow :v Fig.,1. The pinion 15 and the ratchet 16, being frictionally mounted on the motor shaft 11 will turn with it, the pinion transmitting motion through the

intermediate gears

41, 42 and 43 respectively to the pinion 35 which in turn meshes with the teeth on the counterweight 34, causing it to be raised; and since the teeth on the. ratchet wheel 16 engage the pawls 22, the escapement wheel 21 is turned in the direction of the arrow The teeth 211 on the esc-apement wheel 21 are equally spaced. one side being radial and the other side having an inclined face and constructed so as to ride on the teeth 301 and 302 of the pallet 30, so that as the escapement wheel 21 turns in the direction of the arrow X, the pallet 30 will be rocked on its pivot pin 31 and the teeth 301 and 302 will be positively moved in and out of engagement with the teeth 211 of the escapement wheel 21. In general the escapement is similar to any well known type. It will be readily seen by referring to AFig. 1 that as each tooth has to lift alternately both sides of the pallet 30 out of engagement witlrthe teeth 211 of the escapement wheel 21. a certain amount of work has to be done and the rotation of the mechanism is to that extent retarded.

After the counterweight 34 has been raised by the rotation of the motor, through the medium of the gears, before mentioned, to a certain point, by referring to Fig. 4 it will be seen that the rearwardly projecting end of the pin 44 on count-erweight 34 will strike the arm 282 of the pallet support 23 and the continued movement of the counterweight will lift the pallet 30 out of engagement with the teeth 211 of the escapement. wheel 21 and allow the motor and gear train to complete the movement of counterweight 34 to its nal position in Contact with adjustable stop 68 unimpeded by the pallet 30.

lVhen the counterweight 34 is raised, the forwardly projecting end of the pin 44 will move freely in the slot 451 of the link 45 i until pin 44 engages the top of slot 451 which occurs j ust previous to the time pallet 30 is raised after which it will lift link 45 and rock contact carrier 56 on its pivot pin 5T and the contact lingers 59 will break contacts 61 and make Contact with contarts 64, as shown in Fig. 2. It will be noted that the fast completion of the movement` not only assures a. quick break and make of the contacts, but also reduces the sparking between the contacts and thus avoids pitting of the contacts.

Assuming that the relay is in the energized position, as shown in Fig; 2, and that energy is removed an initial kick will be given to the counterweight 34 by the-spring 47 whichbears against the pallet support 28, an arm of which coacts with pin 44 of the counterweight 34, thus it will be apparent that any tendency of the counterweight to `stick up will be overcome. The counterweight 84 will continue to fall by its own weight until itreaches the stop arm 52, and during this movement will rotate pinion/35 in the reverse direction and through the intermediate gears, the motor will be rotated in the direction of the arrow y. Although the escapementfwheel 21 is prevented from moving in the reverse direction with the motor shaft 11 because of the engagement of the radial side of atooth 211 on the escapement wheel 21 with the outer edge of a tooth 301 of the pallet 30, the ratchet wheel 16 and pawls 22, however, permit the motor shaft 11 to' rotate in the reverse direction independently of the escapement wheel 21. As the pawls 22 are forced outward by the ratchet wheel 16 moving in the reverse direction, their outward movement is limited by stop pins 67 on the escapement wheel 21;

Spring 47 also returns the pallet support 28 to its norm-il position, thereby bringing teeth 301 and 302 of the pallet 30 into engagement with teeth 211 of the escapement wheel 21, and 'further acts as a means to steady the pallet in its normal position.

It will be seen by referring to Fig. 2, that pin 44 will move freely in the slot 451 of the link 45, as the counterweight 34 moves downwardly, .ind by the act-ion of the counterweight 561, contact. carrier 56 will be rocked on its pivot pin 57 toward the left hand so that contact fingers 59 will break contact with contacts 64 and will again make contact in a like manner quickly with contacts 61., thus completing a cycle of movements of the relay.

While I have shown and described a relay that is slow acting when it is energized, it is apparent that, by a simple rearrangement or reversal of parts, which will in no way alter the functions or mode of operation, the relay may be changed into one that will be slow acting when denergized.

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

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

1. vIn a time element relay, in combination: a movable member, circuit controlling means operated by said member near one eX- treme of its movement, a motor for operating said member, an escapement wheel driven simultaneously with the movement of said member in one direction, a pallet adapted to coperate with the escapement wheel, and means controlled by said member -mined point near the above mentioned eX- treme of the movement of said member.,

2. In a time element relay of the type in which a movable circuit controlling element is automatically actuated from its normal position after a predetermined interval'of time following a change in the energization of the relay, the combination with the circuit controlling element, of a counter- Weighted lmember acting at one eXtreme of its movement to actuate said element, a motor and associated gearing for raising said counterweighted member,- time controlled mechanism effective to regulate the rate of movement of said Vmember in one direction, and meansl depending upon the movement of said member for rendering said time controlled mechanism inactive at a predetermined position near one eXtreme of the movement of said member in said direction, whereby the timing action automatically ceases when the counterweighted member nearly attains its extreme position so as to permit quick operation of the circuit controlling element.

3. In a time element relay of the type in which a movable circuit controlling element is automatically actuated from its normal position after a predetermined interval of time following a change in the energization of the relay, the combination with a rocking and counterweighted contact carrier constituting the circuit controlling element,.of a movable member biased to one eXtreme position and acting at its other extreme position to move said contact carrier in oposition to its bias, adjustable means for determining the biased eXtreme position of said member, electro-responsive means for operating said member in opposition to its bias and time controlled mechanism operatively connected to said member for regulating the rate ofmovement thereof from its biased posit-ion to its other eXtreme position.

4. In a time element relay, in Combination: a movable memlber, circuit controlling means operated thereby, a motor' for opera ing said member, an escapement wheel driven in accordance with the movement of said member in one direction, a pallet adapted to coperate with the escapement Wheel, said pallet being movable into and out of engagement with the escapement wheel, and means controlled by the member for moving and holding the pallet out of engagement with the escapement Wheel during the latter part of the range of movementrof said memlber in said direction.

`5. In a time element relay of the type in which a movable circuit controlling element .is automatically actuated from its normal position after a predetermined interval of time following a change in the energization of the relay, the combination with a biased contact carrier constituting the circuit controlling element, of a movable member biased in one direction, a lost motion device adapted to operatively connect said contact carrier and said member at one eXtreme position-of the latter, a motor and associated gearing for moving said member in opposition to its bias, and time controlled mechanism driven by said member for regulating the rate of movement thereof toward said eXtreme position. Y

6. In a time element relay, in combination: a counteriveighted mem'ber supported to move vertically, circuit controlling means operated by said member, a motor for operating said member, an escapement Wheel operatively connected to said member upon movement thereof in one direction, a pallet adapted to coperate with said escapement Wheel, said pallet being movable into and out of engagement With said escapement wheel, and means acting at a predetermined point in the movement of said member for moving said pallet out of engagement with the escapement Wheel.

7. In a relay, in combination: a circuit closing means; a motor for operating said circuit closing means; a shaftoperated by said motor; a pinion and a ratchet wheel operated by said shaft; an escapement wheel loosely mounted on said shaft; pawls attached to said escapement Wheel and adapted to engage Withsaid ratchet Wheel and drive said escapement Wheel in one direction; a pallet for governing said escapement wheel; a'support for said pallet; and means governed -by the motor to operate said support after part of the movement of said motor to disengage said pallet from said escapement wheel.

8. In aI time element relay of the type in lwhich a movable circuit controlling element 1s automatically actuated from its normal p osition after a predeterminedfinterval of time following a change in the energization of the relay, the combination with a contact carrier biased to one position and constituting the circuit controlling element; of a counterweighted member mounted to oscillate on a horizontal axis; means .constituting an operating connection between said contact carrier and said member for causing said member, upon attaining one extreme position, to move said carrier in opposition to its bias; a motor and associated gearing for raising said counterweighted member; and time controlled means forregulating the ratev of movement of said member toward said extreme position, said time controlled means being automatically rendered inactive by said'member after part of the movement thereof.

9. In a time element relay of the type in which a movable circuit controlling element is automatically actuated from its normal position'after a predetermined interval of time following a change in the energization of the relay, the combination with a counter- Weighted contact carrier constituting the circuit controlling element, of a counterweighted sector-gear mounted to oscilla-te on a horizontal axis and adapted upon attaining one extreme position to move-said carrier in opposition to its bias, a motor and associated gearing-connected to said sector-gear, adjustable means for determining the biased eXtreme position of said sector-gear, and timing means for regulating the rate of movement of said sector-gear toward its eX- treme position, said timing means being automatically rendered inactive by said sectorgear after part of the movement thereof.

10. In a relay, in combination: a circuit closingmeans; aI shaft for operating said means;y a motor foroperating said shaft; an escapement wheel operatively connected with said shaft when said shaft is rotating in one direction; a pallet having Weighted arms; a movable pallet support; a spring to press said pallet down into engagement with said escapement Wheel; and an adjustable Stop to limit the downward movement of v said pallet.

tion: a counter-Weighted member supported to move vertically, circuit controlling means operated by said member, a' motor, gearing including an escapement wheel and a pavvl and ratchet mechanism Jfor operatively connecting the motor and said member, a pallet adapted to cooperate Withthe -escapement Wheel,a support for said pallet, means for adjusting the range of movement of the pallet support, land means controlled by said member for operating said support. 1,13. In a time element relay, in combination: circuit controlling means biased to one position, a motor for operating said means in opposition to its bias, gearing including an escapement Wheel and a pawl and ratchet mechanism for operatively connecting the motor and said circuit controlling means, a

pallet adapted to cooperate with the escapement Wheel, a movable support for the pallet which is spring-pressed to move the pallet into engagement with the teeth of the escapement Wheel, and means controlled by said gearing for operating said pallet suport.

p 14. In a time element relay, in combination: circuit controlling means biasedl to one position, a motor and associated gearing for operating the' circuit controllingmeans in opposition to its bias, time controlled mechanism for regulating the rate of movement of the motor and gearing, and means for rendering said mechanism inactive after a predetermined portion of the movement of the motor and its associated gearing.

15. yIn a time element relay, in' combination: a movable member biased to one position, circuit controlling means operated by the member, means for adjusting the range of. movement of said member,.a motor for operating said member in opposition to its bias, time controlled mechanism for controlling the rate of movement of said member in one direction, and means controlled by said member for rendering the control .of said mechanism ineffective at a predetermined point near one extreme in the range oi' movement of said member.

16. In a time element relay, in combination: a movable member biased to one eX- treme of its range of movement, aI motor and associated gearing for driving` the member to the other extreme, means for adjusting the range of movement of said member,

. time controlled mechanism eii'ective for part of the movement of the member for regulating the rate of movement thereof in one direction, and circuit controlling means operated by the 'member at one extreme of its movement.

17. In a time element relay, in combination: a movable member, means for adjustingthe range or" movement of said member, timing mechanism effective to regulate the rate of movement of said member in one direction from `its adjusted position to a predetermined point near the opposite extreme, and circuit controlling means operated by said member near said extreme of its movement in said direction. l

18. In a time element relay, in combination: circuitcontrolling means biasedto one position, a counter-weighted member supported to move vertically and adapted to operate the circuit controlling means near one eXtreme of thel movement of said member, a. motor for operating the member in opposition .to its bias, and time controlled'y mechanism for regulating the rate of movement of said member and automatically controlled by said member to be effective for only part of the movement thereof toward said extreme.

19. In a time element relay,l in combination: a counterweighted sector-gear mountof the contact carrier in opposition to its bias only When the sector nearly attains one extreme position, and time controlled mechanism actuated by said sector-gear for regulating its movement toward said extreme position.

20. In a time element relay of the type in which there is an adjustable time interval between a change in the energization of the relay and the operation of its circuit controlling element from its normal position, the 'con'ibination with the circuit controlling element, of a counterweighted member adapted to actuate said element at one eX- treme position, and adjustable means for determining the other extreme position of said member, said means comprising an'arm pivotally supported at one end and having its Vother end positioned to act as a stop for the counterweighted member, together with an adjusting screw engaging said arm between its ends.

21. In a relay, in combination: a circuit controller biased to one circuit controlling position and adapted to be operated to another position; a counterweighted member supported to move vertically from one eX- treme position to another extreme position; adjustable means for determining the initial position of said member; a motor forl operating said member; timing mechanism for governing the rate of movement of said member in one direction, said mechanism comprising an escapement Wheel and a pallet having Weighted arms; a movable support for said pallet; means for adjusting said support to vary the extent of movement of said pallet; a lost motion device operatively connecting said circuit controller and said member; and means associated with said movable member for lifting said pallet out of engagement With said escapement wheel at a predetermined point in the movement of said member.

22. In a time element relay, in combination: a counterweighted membersupported to move vertically; a motor for driving said member; a .circuit controller biased to one position and adapted to be operated to another position by said member near one eX- treme of its movement; a lost motion device connecting -said circuit controller and said member; adjustable means for determining the initial position of said member; a timing mechanism for governing the rate of movement of said member in one direction, said mechanism comprising an escapement Wheel anda pallet, said pallet being movable bodily into and Aout of engagement with said escapement Wheel; and means controlled by said movable member for moving said pallet out of engagement with said escapement Wheel at a predetermined point in the range of movement of said member.

23, In a time element relay, in combination: a circuit controllercomprising a counterweighted contact carrier; a counterweighted gear sector supported to move vertically; a motor and gearing for operating said sector; a lost motion device operatively connecting said sector and said contact carrier; timing mechanism operated 1n accordance with the movement of said sector for controlling the rate of movement thereof, in one direction, said mechanism comprising an escapement wheel, .a pallet,

and a movable support for said pallet; and means actuated by saidsector for moving said support to lift, the pallet out of engagement with the escapement Wheel at a predetermined point in the movement of said sector near its upper extreme. A

24. In a time element relay, in combination; a circuit controller; means for operating said circuit controller from one extreme position to another; timing mechanism for governing the rate of movement of said operating means, said mechanism comprising an escapement wheel and a pallet; and means for throwing said pallet out of engagement With said escapement Wheel at a predetermined point in the range of move# ment of'said operating means.

25. In a time element relay, in combination: a circuit controller biased to one position and adapted to be operated to another position; operating means for said circuit controller including a counterweighted member supported to move vertically; timing mechanism for governing the rate of movement of said operating means, said mecha-` nism comprising an escapement Wheel and a pallet; means for adjusting said pallet relatively to said escapement Wheel; and means operated by said counterweighted member for throwing said pallet out of engagement with said escapement Wheel at a predetermined point in the movement of said counterweighted member near its upper extreme.

26. In a time element relay, in combination: a contact carrier biased to one circuit controllingposition and adapted to be operated to another position; ay counter- Weighted gear sector supported to move vertically; a lost motion device operatively connecting said contact carrier and saidsector; a motor and associated gearing for driving said gear sector; an escapement wheel; a paWl and .ratchet mechanism for operativelyv connecting said` escapement Wheel and gear sector; a pallet adapted to coperate with said escapement wheel; a movable support for said pallet; means for adjusting sald .support to vary the ,relative distance between the axial centers of said pallet and said Wheel; means controlled by said gear sector for moving said support to lift said pallet out of enga ement with said escapement wheel after t e gear seclili tor has moved to a predetermined extent from its initial position; and adjustable means for determining the extent of ftravel of said gear sector from its initial position to the point where said'support is moved. 27. In a relay, Athe combination with a timing mechanism comprising an escapement wheel, a weighted pallet, and a movable support for said pallet adapted to be adjusted to vary the distance between the axial centers of said escapement wheel and said pallet, of means controlled by said mechanism for moving said support to lift said pallet out of engagement with said escapement wheel.

'28. In a time element relay, in combination: a circuit controller biased to one-circuit controlling position and adapted to'be operated to another position.; a. pivotally mounted counterweighted member; adjustable means for determining one eXtreme position of said member; a lost motion device operatively connecting said circuit controller and said member; a motor; gearing operatively connecting said motor and said member; an escapement wheel; means for operatively connecting said escapement wheel and said member whenv the latter moves in one direction and for disconnecting said parts for movement in the opposite direction; a pallet associated with said escapement wheel; a movable support for said pallet; and means acting at a predetermined point in the movement of said member for moving said support to lift said pallet out of engagement with the escapement wheel.

29. A timing mechanism for relays comprising an escapement wheel and a pallet, said pallet being mounted on a movable support which may be adjusted to vary the relative distance between the axial centers of said escapement wheel and said pallet and which may be operated to move the pallet bodily out of engagement with said escapement wheel', and means governed by said timing mechanism for operating said e pallet support.

30. In a time element relay, in combination: a movable member biased to one eX- treme of its range of movement, a motor and associated gearing for driving the member to the other eXtreme, means for adjusting the range of movement of said member,

time controlled mechanism for regulating the rate of movement of said member in one direction, a biased circuit controller, and means comprising a slotted link and pin for operatively connecting said circuit controller and said member -near one extreme of the movement of said member to cause movement of said circuit controller in opposition to its bias.

31. In a time element tion: a counterweighted member supported to move vertically; a motor for driving said member; a circuit controller biased to one relay, in `combinaposition and adapted to be operated to another position by said member near one extreme of its movement; a lost motion device connecting said circuit controller and said member; adjustable means for determining the initial position of said member; and Aa timing mechanism for governing the rate of movement of said member in one direction.

32. In a time element relay, the combination with a circuit controller including a biased contactcarrier, of operating means therefor comprising a pivotally mounted i counterweighted member, a motor and gearing for raising said counterweighted member, adjustable means for determining the biased eXtreme position of said member, means adapted to establish an operative cnnection between the Contact carrier and said counterweighted member near the upper eX- treme position of the latter, and timing mechanism including an escapement wheel and a pallet adjustable relatively to each other for regulating the rate of' upward movement of said counterweighted member.

33. In a time element relay, in combinationra contact carrier biased to one circuit controlling position and adapted to be operated to another position; a countervveighted gear sector supported to move vertically; a lost motion device operatively connecting said contact carrier and said sector; a mo-