US1112378A - Switching apparatus. - Google Patents

Description

H. F. NEWBURY. SWITCHING APPARATUS.

APPLICATION FILED IAN.28,1905.

Patented. Sept. 29, 1914-.

4 SHEETS-SHEET 11 H. F. NEWBURY.

SWLTGHING APPARATUS. APPLIGATION EILED JAN.28, 1905.

1 1 1 2,378. Patented Sept; 29, 1914.

I I l SH'EET3$EEET 2. H518 H. F; NEWBURY.

SWITCHING APPARATUS.

APPLICATION FILED JAN,28,19ULL Patented Sept. 29. 1914.

i SHEETS- SHEET 2.

194mm 0 a H. P. NEWBURY.

SWITCHING APPARATUS. APPLICATION FILED JAN.28,1905.

Patented Sept. 29, 1914.

4 SHEETS-SHBET 4,

llw W 1 3 .21 7/ 10 V2 Z I; W

. I (1 Q2] E ,14 1 p75 1 29 5' fix i E IZ :1

witwaoaw i To all whom it inc concern UNIT D STATES PATENT OFFICE.

HENRY I. nnwnnmzgor New YORK, N. Y., ASSIGNOR TO ELEVATOR SUPPLY & REPAIR COMPANY, A oom ona'rIoiv or ILLINOIS.

SWITCHING APPARATUS.

Specification of Letters Patent. latented Sept. 29, 1914. Application filed January 28, 1905. Seria1No. 243,120.

. Be it known that I, HENRY F. NEwBURY,

V acitizen of the United States, residing in the borough of Brooklyn, city of New York,

county of'-K ings, State of New York, have inventedcertain .new and useful Improvements in Switching Apparatus, ofwhich the following is a full, clear,'and exact description, reference being had to the drawings accompanying and forming a part of the same. This invention relates generally to switch devices and means by which such devices are. operable, when in operable condition, the

same'being adapted for use in connection with electric switch devices, if desired, examples of which are hereinafter set forth in the drawings and specification.

This invention relates to apparatus for giving signals and it is illustrated as applied toan elevator system.

One. of the objects of the invention is to enable signals to be given to a passenger at a floor indicating to him the cars which are approaching the direction in which he desires to go, and to provide such apparatus with an arrangement. whereby when desired thecars can nals.

A further object of the invention is to provide this mechanism with means for run without operating the sigholding it in a setposition so that it will maintain itself in a relation which will en able a car to run without giving any signals and without requiring the attention of the operator or starter to maintain that conditlon, 7

Further objects of the invention will appear more fully hereinafter.

The invention consists of the combinations of parts, members or devices hereinafter set forth and particularly pointed out in the claims which form a portion of this specification... i

In the drawings which illustrate the pre= ferred-embodiment of my invention, Figure 1 shows diagrammatically and partlyin front elevation the apparatus as-arranged for a single car such'as an elevator cam-Fig. 2 is a plan view partly in section and on an enlarged scale illustrating parts of the ap-,

paratus shown in Fig. 1; Fig. 3 illustrates part of the same apparatus illustrated in relation; Fig. 4 shows a portion of one of the switch devices and connected parts when -the same has been. actuated by the movement of a carriage or traveler; F ig.- 5 shows one of the switch devices in end elevation; Fig. 6 is another view of one of the switch devices; Fig. 7 shows the same parts as those illustrated in Fig. 6 but represents the ter-' minals as brought into contact to close the switch; Fig. 8 is a front elevation upon an enlarged scale of the carriage or traveler and connected parts illustrated in'Fig. l but with certain of the parts in a different relation; Fig. 9 is a side view of the parts shown in Fig. 8; Fig. 10 shows in front elevation those parts seen in Figs. 8 and 9, but with some of the parts in different positions fromthose corresponding parts as seen in Figs. 1, 8 and 9; Fig. 11 shows in side view some of the parts seen in the upper portion of Fig. 9, but with the parts in the position seen in Fig. 10, which isdifi'erent from the positions the same or corresponding parts occupy in Figs, 8 and 9; Fig. 12 illustrates in front elevation, and on an enlarged scale, one of the parts 'connected with the carriage which engages with the switch devices in position to be operated as the carriage moves in one direction, seen in preceding figures; Figs. 13 and 14 illustrate details of the operation of some of the parts as the carriage moves relatively toother portions; Fig. 15 illustrates in rear elevation a different cona carriage adapted to be substituted for the one shown in Fig. 1, upon the substitution of the switch devices and bars, seen in Fig. 16, for each of those seenin-Figsl and 2; Fig. 16 shows in front elevation parts of two carriages and connected parts with two contro'llers of the general form seen in Figs. 1,

'2 and 3 upon which the switch devices are mountedwith a modified-form of switch devices mounted thereon, a form which is well adapted for use in connection with the form of abutting or coacting surfaces seen in Figs. 17, 18 and 19 to engage with and actuate the same and'move the controllers or bars, as in the construction seen in Figs. 1 and 2; Fig. 17 shows in side elevation the carriage seen in Fig. 15 and also a portion of the frame of the apparatus on which the parts are mounted; Fig. 18 shows in front elevation that which is shown in rear elevationin Fig. 15 and in side view in Fig. 17, but with each of the abutting surfaces andsome of the parts shown in one of two positions in full lines and also in dotted lines; Fig. 19 shows the same parts seen in Fig. 18, but

with the abutting surfaces seen in fulllines when in position for both to pass by the switch devices without actuating them in the up and down movements of-the carriage; Fig.20 illustrates the polarized relay and locking devices seen in Figs. 15' and 17, but

separated from adjacent parts and with the locking devices in the locking position to hold the abutting surfaces in the positions seen in Fig. 19, instead of in the unlocked positions, as seen in Figs. 15 and 17 Fig. 21

illustrates in front-elevation another embodiment of the present invention wherein the abutting surfaces are not movable on their supports and portions of the switch devic'es'or their coacting parts are made movable into and out of coacting positions with the surfaces; Fig. 22 shows on an enlarged scale, in' plan and partly in section,

the parts seen on line 2222 of Fig. 21, with.

the bar on which the switch device is mounted not broken away, as seen in Fig. 21; such bar beingv in position for such device tovbe operative, being provided with one of the controlling magnets and armatures, used in connection with such bar as shown in Figs.

1 and 2, and by whichthe bar is held in the inoperative position or farthest away from the coacting or abuttingsurface which moves it tomove the switch device itself out of operative relation with the part, with which it contacts and brings the terminals thereof into contact; Fig. 23 shows a construction in front elevation, with some of the parts removed, in which a feature, not

w shown in Figs. 21 and 22, has been added 25 shows in front elevation portions of the parts seen in Fig. 23 separated from the other parts for clearness of illustration.

Like letters of reference, wherever they occur, indicate corresponding parts in all of the figures of the drawings.

I A slab of slate or other desired material is preferably employed as a frame or mounting upon which the parts, including the switch devices, are suitably mounted and which preferably are to be located at a censuch tral, or other point, and are to be operated through the movements of the car or similar object, or by the mechanism by which the car is moved from one floor or station t another fioor' or station.

In Figs. 1 to 1 1, F represents a slab'of slate or other material which serves as a frame-on which other parts are preferably mounted. To this frame F there are attached two bars, Y Y, in which are mounted four bars, which may be hollowv so as to form tubes D, D, D and D which are free to slide lengthwise in guide bars Y'and Y, as shown in Fig. 1. Each of these bars or tubes has mounted upon it a switch device,

which may consist of a pair of terminals and means by which acoacting surface is enabled to bring such terminalsinto contact and close a circuit; There is, as here shown, one switch device for each bar or controller, as D, D, D &c., and they are arranged to serve a single car, as such car movesin two directions relatively to the floors or stations to beserved, one half of the controllers or bars and switch devices being for the up movements and one half for the .down movements of such car. These switch devices, B, .B, B and B are provided with pairs of terminals, as b, b 5 &c., respectively,'which are insulated, .one terminal from the other, and these terminals form v the terminals of circuits, respectively. Each .controller or bar, as D and D, is movable back and forth in the bars Y andY, and control the position or positions of some portion of the switch device or devices relav tively to another partor parts by which each pair of terminals may be closed and opened at desired times. As here shown the switch devices are normally in an inoperable or inefiective condition or position, that is, some portion or'portions of each device is normally in such position, relatively to some other portion or portions thereof, so that the terminals will not be closed upon the up and down movements of the car, but have to be moved, a. e. brought into position or condition where'such movements will cause airs of terminals to be closed and opene When such controllers are moved by the segments of the eccentric gears into positions where the switch devices are in inoperative condition stopsor detaining devices engage with the controllers-to hold or detain them with their switch devices in the inoperative condition until such detaining devices are operated to release them. As shown these stop or detaining devices-consist of an armature, a spring, an electromagnet and suitable stop or engaging projections, arranged to engage and disengage upon the movements of thearmature, as seen in Figs. 2 and 3. In Fig. 2 the controller D has been moved inthe direction of the arrowthereon by the spring Sconnecting troller D and thus permitting the stress of spring S to become effective and move the controller from the position seen in Fig. 3 to that seen in Fig. 2. Electromagnet M is energized by means of a source of energy Z, .push button device P and circuit wires switch device is brought into the operative 101, 104, 105 and 103, upon operating device P, a s'in ordinary push button circuit closing devices. This push button device is to be located conveniently at the floor or station desired and is to be operated by the person at such floor or station to signal that the car is to'stop 'thereat. On operating the push button P magnet M is energized and armature m" attracted, removing stop (1 from engagement with pin at" when .the

condition by springs. Each controller, as .D D, D and D is provided with a magnet, as M, M, M and Mflarmatures m, m, m and m push button devices, as P, P, P and P and circuits connecting with a source or sources of energy, respectively, as just described. Push button P is connected with magnet M and source Z by Wires 101, 102 and 103. Device P is. connected with the same source by wires 101, 106, 107 and 103, and device P is also; thus connected by wires 101, 108, v109 and 103 Two of these push button devices, it will be seen are to be operated to signal the car as it moves upwardly, and be called up push buttons and two to signal as the ear moves downwardly and therefore maybe called down push buttons.

The carriage or traveler G is mounted to move relatively to andpast the switch de'vicesby means of guide rollers g, g g etc., carried on studs, as G, G, G 620., Fig. 2. A. reducing mechanism. R connects With the operating mechanism Wand reduces the speed and the'distance moved by the carriage C- as desired, accordingly as the conjstructor secs fit in constructing any given apparatus. A reduction by which the car- 'riage moves about two inches while the caror similar object moves twelve feet has been found quite satisfactory in practice. Any desired form of speed reducing mechanism may be employed. Suitableforms of such mechanisms are well known'in connection with mechanical indicators; Reducing mechanism R is connected with carriage C" by any form of suitable flexible connecting material, as cord or'rope z, and preferably in such manner that as car A moves upwardly carriage C also moves upwardly.

Carriage or traveler C is provided at teach end portion with a movable part or piece of the form and construction.- more clearly seen inFig. 12, where one of such parts is seen detached and separate from the carriage. As thus seen each of these parts, 0 and "0, is provided with a roughened engaging surface preferably in the form of rack teeth which are adapted to engage with the segments of eccentric gears forming coacting parts and which are in turn adapted by their movement to cause the terminals of the switch devices to be closed and permit the same to be opened. Each switch device, as B, B, &c., is provided With one of these segments of eccentric gears, as a,-a, a, &c., which is'pivotally mounted on studs, as h, h, if, &c., respectively, which are in turn mounted on controllers, as D, D, &c.,

and hence are carried by such controllers in seen in- Fig. 6, and be moved from the 'position, seen in that figure, by the movement of the part as a intothat seen in F i 4, by the engagement of the. rack teeth on 'parts, as 0 and 0, with the segments as indicated in this Fig. 4, when such parts are moving in the direction of the arrow relatively to such segments. This movement of the rack in engagement with the segments causes the latter to turn on their respective studs, thereby causing the parts, as a, a, ,&c., to also turn thereon, which causes pins or projections thereon, preferably insulated therefrom, to engage with their respective pairs of terminals, closing the same,

as clearly seen in' Figs. 4 and 7. v After the segments as a, a, &c., have been moved into the position seen in Fig. at they naturally will not continue to turn on their respective studs, because the eccentricityof such segment will have forced the controller and segment away from the carriage sufficient-1y for the gear teeth there: onto be out of mesh with the teeth on the rack carried by the carriage, and .the rack can continue its movement indefinitely with out further effect on the segment, except possibly to. hold it in. the position seen in Fig. 4. Such eccentricity will also have forced the controller-into position where the armature, as m, m, &c., will be moved under the stress of its spring, as M M &c., from the position seen in Fig. 2 to that seen in Fig. 3. In this position its magnet will have to be energized to again bring the switch device into operative conditiomthat is, with the parts in the positions seen in moved beyond the segment a two arm spring, as is, 70, 70 820., connected therewith, as seen in Figswt, 5, 6 and 7 ,returns such segment from the position, seen in Fig. 4 tothat seen in Figs. 5, 6 and7, but .thepart, as a", a &c.,- cannot return with the segment owing to a retaining device, as T, T, &-c., which engages therewith and prevents such part returning far enough to open the coacting terminals, as seen in Fig. 7. The switch device and connected parts seen in these Figs. 4, 5, 6 and 7 are shown in the lower right-hand corner of Fig. l and the controller and attached parts have been turned so as to bring the controller behind the attached parts. These'twoarm springs, as k, 70, 70 &c., are arranged relatively to the hubs of the segments, as a, a, &c., and parts, as a, a &c., whichare mounted on studs, as h, h, &-c.,' as seen in Fig. 5. One arm of each spring acts on its respective segment by contact with a pin or projection, as Z, Z, P, &c., respectively, as seen in Figsft and 5, the pin or projection, as i, i, 7?, &c., respectively, holding the other arm of such spring aga1nstmovement. When it is desired that the segment, as a, a, 620., shall move in the opposite direction and from the position where it is held by the two arms of such spring, the pin or. projection, as Z, Z, P, respectively, moves in that direction and it moves the other arm of such spring with it, pin or projection, as i, z", &c., respectively, holding the arm of the spring, which was before moved, against moving, and, hence, such spring is'adapted, not only to hold the segment, as a, a, &c., in the positions seen in Figs. 5, 6 and. 7, but also to return such segment to such position whenever moved therefrom.

In connection with each switch device there is arranged a retaining device, as T, T, T, &c., which is provided with a shouldered portion, as t, t, 25 '&c., respectively, to engage with the movable part, as a a, &c., respectively, as seen in F ig. 7 where portion 2& is shown engaged with part a, being directly over a portion of such part preventing it from-moving in a direction to open the pair of terminals 6 under the spring action of such terminals. This part, as t, t, &c., is 'spring pressed against part,

"as a 0, &c., by a sprlng, as S S S &c.,

as shown in Figs. 6 and 7, such part being movably mounted on the controller as D, D,

&c., as shown in these figures, so as to move longitudlnally thereof. Thls retalning device is moved in opposite direction or away from part, as a, if, &c., by inclined surfaces, as O and O, mounted on the carriage C. Surface 0 serves to moveportions t and t of retaining devices T and T out of engagement with parts a and a of switch devices B and B and surface 0 serves the and B whenever'such portions, as t, t, &c.,

are in engagement with their respective movable parts, as a a, &c., thereby releasing such parts from the holding or retain ing action of parts so that the spring action of the terminals will restore such parts to their normal positions, as seen in' Fig. 6. Surface 0 engages with the free ends of the shouldered portions of devices T and T nearest to the carriage or traveler, as such surface moves past the same after the rack 0 has operated segments a and a and as such surface moves upward such shouldered portions are forced backward against the stress of the springs, as S and S until the retained parts are released and are restored to their normal positions again.- Surface 0 serves to do the same for the portions t and in the downward movement of the carriage. In Fig. 1 surface 0 is shown in positionjust before engaging with the free end of portion t of retaining device T the rack portion 0 of the carriage, in its downward movement,'having operated segment a and closed the terminals 72 and part t 'has engaged with movable part a and, as thus shown, is holding the terminals in the closed condition or position. As the carriage continues its downward course surface .0" will force part 25 backward, restoring the part a and its terminals to their normal positions, as seen in Fig. 6, when the circuit connected with such terminals will be opened, or restored to its normal condition.

Each pair of terminals, as I), b, '&c., is adapted to close a circuit, as here shown, and when so closed to operate a signal device in a car or similar object for a, desired period of time, or extent of movement of the car before the floor or station is reached, where the push button device is located which is operated. This extent of movement may be any amount desired, as the distance between two floors. Usually a distance in which the car can readilybe stopped is chosen, and in practice this has been found to be less than twenty five feet, depending however upon the speed of the Can Only one signal device in the car.isnecessary to give the signals in both directions of movement, although more than one may be employed if desired. Signal device L in car A may be "of any desired form and construction. This device L is connected with each pair of terminals and a source of energy in any desired manner. As shown device L is connected with source Z and terminals has follows: by wire 1 leading from such source to device L, from such device by wire 2 to one of the pair of terminals 6, then from the such source and one of the pair of terminals 6' by wires 1, 2, and 4 and from the other of that pair of terminals by wires 5 and 3 back to suchsource. This device is also connected withsuch source and-the pairs of terminals b and 12 respectively, by wires 6, 7, and 8, 9, respectively, connecting with wires 2 and 3.

The construction thus far described is one form or construction of apparatus to which the present invention maybe a plied, it being shown and described to exp ain the manner in which my invention is applied ,in practice. I

In the construction of apparatus shown in Figs. 1 to 14, inclusive, the carriage C is provided with movable abutments, engaging surfaces or parts 0 and 0 movable trans versely to the direction in which the caroperative or active position as the carriage moves upwardly and out of such position asv it moves downwardly, and partor surface a .is moved into operativeposition as the carriage moves downwardly and out of such position a'sjit moves upwardly. As a result there is only one of the' two parts or surfaces, 0 and 0-, in operative or acti'veposition at a time, the otherone being in the inoperative position, hence, as the carriage moves in either direction it gives the proper signals. 'Or, in other words, by this transverse movement of these parts 0 and c of carriage C the up switch devices, in operable condition, are effectively operated only when the carriage moves upwardly and the down switch devices are not actuated to give signals, and vice versa. These abut-' ments or parts 0 and 0' are mounted on studs,'as E, E, E and E, Fig. 9, fixed to base plate E, and each stud has mounted upon its free end a pair of pins or projectrons, as c, e, c and 6 Fig. 8, which are arranged in lines transversely of the direction of movement of the carriage and sufficiently far apart to receive such parts, as indicated in Figs. 1 and 8, and permit them" to move as just described. These parts, as c and 0, are moved, as shown, in one direction by springs, as s and s, Fig. 8, one spring for each part, and they are moved in the other direction bya longitudinally movable faces which are adapted. to coact with these projections, as r, r, &c.',one set being formed w on one edge to coact with projections r and r and the other on the opposite edge to the movement of the carriage the cam plate E is moved and the parts, as c and ,0 reverse their relation. Cams or inclined'surfaces r and r 'engage with projections r and r on part 0, and force such part against the stress'of its spring 8 into the position seen in Fig. 8, where the teeth thereon can engage with the teeth or segments a and a as the carriage moves upwardly. Cam surfaces of and 7' engage with projections r and r and move part 0' against the stress of its spring 8 into position where the teeth thereon, on the downwardmovement of such part will engage with the teeth on segments .a and'a", moving part c from the position seen in Fig. 8 to thatseen in Fig. 1. Thus as this cam plate moves in either direction both of the parts 0 and 0' change from one position to another by the action of the cam. surfaces on the projections and the.

springs s and 8'1 I provide means for meichanically controlling these racks c and c automatically. This cam plate is caused to move in the direction of its length, to con trol p'artsc and c, by means of two rock? shafts N and N mounted in'plate E on the carriage, one shaft and its connected parts moving'camplate E in one direction and the other shaft and parts moving it in the other direction. Rook-shaft N has two arms n and n and shaft N has arms n,

and of. Arms n and n are each provided the arms at and n respectively. From this arrangement each pawl is effective for one direction of movement only. From this it results that as the carriage moves upwardly oawl n? mav ass an obstruction which might otherwise cause the rock-shaft N' to be moved, without moving such shaft, and this is also the case with pawl n and rockshaft N as the car moves downwardly.

The frame F, as seen in Fig; 1, has an obstruction or stud 0 secured thereto near its top edge and another 0 near its bottom edge,

and two others 0 and 0 nearly midwaybetween those at the top and bottom. Pawl passed either one of the studs or obstructions ore and the direction of movement of the carriage has been reversed or changed the pawl n when itreaches the first one of these studs, engages therewith and partially rotates rock-shaft N in its bearings as seen in Fig. 14, until the pawl is moved sufficiently to pass out of contact with such stud or obstruction, thereby moving cam plate E lengthwise thereof, with the effects described above. With this arrangement of pawls and studs there may be placed as many studs or obstructions on the frame of v the apparatus, intermediate ofthe top and bottom ones, near the end of movement in each direction of the carnage, as one may think deslrable.

If desired means may be employed to continue the movement of the cam plate E after the pawls put it in motion and thus A spring, as r or T tends to force the wedge shaped part T or r lnto the BX,

treme bottom of their respective notches when once entered therein, and, consequently the cam plate, as E may bemoved somewhat farther by this action 'of the part, as 1 or 1 on the inclined surfaces of their notches than the plate is moved by the pawls and studs,as before explained. Of course the stress of the spring, as 7 and the frictional contact of the part, as, 1 with the cam plate has to be overcome when the part 1' is being moved out of one notch and into position to enter the other, but this is accomplished by the positive .contact of one of the pawls with its respective stud or studs. After the part, as? has entered either of the notches the spring, as rt, tends to force it into the bottom thereof and this action moves the cam plate in a direc-- tion the same as the pawl and stud moved it. In addition to this the part, as r spring as 1- and the' notches form a holding'means by which the cam and directly connected parts are held in either oftwo positions, corresponding with the notches r and W Also the frictional contact of the part, as W, upon the cam plate tends to hold such plate at any point it may be placed in the path' of movement thereof,

except when such part is acting on theinr the cam plate E, seen in Figs. 8, 9 and 10,

is the same as it is on the plate seen inFig. 1, notwithstanding the slightly different configuration or shape of the two parts r and An arrhngement is provided so that the cam plate may be so moved that neither one of the pawls will be in position to contact with its respective studs or obstructions in the movement of the carriage up and down past the switch'devices, if so desired. This may be accomplished in the manner now to be described. \Vhen thus constructed the signal apparatus for a car may be rendered inoperative at will, that is, the normal operations be suspended, and remain'inoperative for any desired period of time and then rendered operative again withoutinterfering with the bringing of the switch devices from their normal inoperative condition into an operative condition or position, and also without disturbing the condition, position or positions of such devices while the car and carriage continue their up and down movements, except, that, when such apparatus is rendered operative again, the switch devices in operable condition at the time are actuated as they would have been before the apparatus was rendered inoperative, the operations of the means just described for changing the operative relations of the switch devices and actuating means being also temporarily suspended. Furthermore, the means by which the signal apparatus for a single car is rendered'inopefative is adapted, as herein shown 'and described, to

be held or locked in position or condition to hold such apparatus inoperative by means other than thoseused to render the apparatus inoperative and then such holding or locking means may be operated and the apparatus rendered operative again.

The cam plate'E is made movable longitudinally for a greater distance than it is normally moved by the rock-shafts N and N and it can therefore take on an extended movement in onedirection as occasion requires, and such plate cannnove from either of the positions seen in Figs. 1 and 8 to that seen,in Fig. 10, where the wedge shaped: part 21 is shown entirely out of both of the notches r and r and bearing against the edge of such plate. This movement is brought about by the action of two armatures when their respective magnets are en-- ergized;

Plate E of the carriage has attached to it has an armature m which is provided with,

an arm or projection m which enters an elongated opening or slot m in this cam plate'E as seen near the lower ends of Figs. 8 and 10. These magnets, by reason of the slot m in plate E, do not move the plate to the same extent. Magnet M and its armature m canonly move such plateinto the position it occupies when part r is in notch r This brings armature m sufiicientlyinto the field of magnet 1W", for continuing the movement of the plate without further assistance from armature m until it is in the position seen in Fig. 10, the slot m in the cam plate permitting such plate to move. This movement of the cam plate E causes the rock shafts to be rocked in their bearings into the positions seen the pawls n and n are both moved into positions whereneither can engage with its re spective studs or projecting pieces, as o, 0 &c., in either direction of movement of the carriage and, hence, such pawls and studs no longer coact to change the relations of the switch devices and the means which actuate them, the normal operation of such pawls and studs being suspended or interrupted until such pawls resume their former positions relatively to such studs. Also the parts or surfaces of the carriage, c and c',wi1l both be moved into the positions seen in Fig. 10, where neither one can engage with any segment or segments which it might engage with but for this extended movement of the cam plate in this direction. This is accomplished by the action of the springs s and s and cut away portions on the cam plate E which permitsone of the two abutments or parts nor 0' to move under the stress of its spring or springs and the other one to remain in the position it occupied at the time. These cut away portions r r 7' and 1' are clearly seen in Figs. 8 and 10. As seen in Fig. the projections or pins 1*- and? on part 0 are in cut away portions r and 1' and the pins r and W on part c are in cut away portions r andr. The parts will thusv remain so long as the magnets remain. energized and, then,'when the magnets are deenergized such parts will resume a position where one of the rock-shafts will be in position for its pawl to be operative onits respective studsand the apparatus to be put into the operative condition again.

Sometimes it is desirable that the signal apparatus shall be temporarily rendered inoperative for a longer or shorter period of suspended b be held or maintained inoperative by other means than by holding such circuit closed. in Fig. 10, where' relay M position seen in Fig. 9 and releasing the time. It is not always desirable in such cases that the electromagnets shall remain energized for too great a length of time, where currents of electricity are used, such as are usually employed in operating signal devices In slgnal apparatus of the general class used in connection with elevator cars in buildings, If the time be short, as when the car has begun its trip and the apparatus be rendered inoperative until the completion thereof, then the magnets may remain energized for such a period of time, if properly-constructed, and this may be accomplished by holding the circuit closed by the means which closes such circuit. If the time be longer, as, for instance, when a car is to be withdrawn from regular passenger service,'asfor repairs or other use, temporarily, and it is to be'moved up and down in the shaft Without receiving signals, then the apparatus maybe made inoperative, that is the operation of the system for that car be y the closing of the circuit and lilagnets M and M are connected in lows: A pole changer and polarized relay are placed in circuit therewith for a purpose to be hereinafter described. As here shown a push button P is placed in the car A, and from wire 1, leading from source Z to signal deviceL the car, a wire 10 connects with such push button; from this push button P a wire 11 leads to the pole changer P and thence, when the arms 12 and 17 thereof are in the positions seen in full lines, to arm 12 of the pole changer andthence by wire 13 to the coil of the polarized relay M wire 14 to electro-.

magnet M wire 15 to magnet M wire 16 to arm 17, of the pole changer, and from such arm to wire 18, to wire 3 and back to source Z. The operation of this portion of the apparatus is as follows: Upon the operator in the car wishing to render the signal apparatus of his car inoperative temporarily, as for a portion of a trip, he

operates the push button P closes the circuit .from source Z, through the pole changer P1, coil of relay 3' magnets M and M back to the pole changer again and source Z, energizing magnets M and M and moving cam plate E into the position seenin Fig. 10, as before explained.

.So long. as the circuit is thus closed the cam plate will be held in this position and the other parts will remain inthe positions there seen. Assumingthat the current in the circuit was in a direction for polarized to hold its armature m in the push butt-on P the curcuit would be broken and then the cam plate and connected parts would assume positions where one of the pawls, as a, a, would be operative upon its respective stud or studs,'when the apparatus would operate as before the push button was actuated, that is'thenormal operation would be resumed. This movement of the cam plate and connected parts, when :agnets El and M are deenergized is caused by a spring S and connected 5, clearly seen in Figs. 9 and 11. Pin 5 s arranged in position for projection or pin on on armature m to contact with and move it, when magnets M and M are energized, and compress spring S so that when such magnets are deenergized the spring will act to return the parts, as

above described. As shown in Fig. 1 a second push button 1 1s arranged outside of the car and it may be located at the main floor of the building where the person in charge of the elevators is usually stationed, so that it may be operated at that pointand render the signal apparatus for a single car inoperative and then the operator in the car will not receive any signals to stop at any of the floors or stations and may continue his course. This push button P is connected to wire 1 by wire 19 and to wire 11 by wire 20, and consequentlythe actuation of such button has the same eifect as the actuation of push button I, in" rendering the apparatus inoperative, and holding it inoperative.

The apparatus, as'he're shown, may be held inoperative for the desired length of time by means of the polarized relay M and connected parts. The armature m of relay M is free to move between the poles m and m and it is moved into the position seen in Fig. 9 as the current passes through the coil in one direction, and the pin or detent m on armature m is held out of engagement with the detent pin 0272 on armature 1129 of magnet M so that armature m can move back and forth without being interfered with by detent or holding device on armature m of relay M flso long as armature m is thus held. This armature m is moved into the position seen in Fig. 11 upon a reversal in the direction of the current in the coil of relay M when armature m is in position to permit armature m to assu1ne the position therein seen. When the parts are in the position seen in Fig. 11 and the circuit is broken the stress of spring S acts on pin m and forces detent pin m, carried by armature m against holding device or detent 972 on armature m and as pin m engages with cam plate E such plate cannot move under the stress of spring S farther than such detent m will permit and the signal apparatus is held inoperative until detent m is removed or returns to the position seen in Fig. 9. .Upon

pin

a change of the arms 12 and 17 of the pole changer 1 from the positions seen in full lines to those seen in dotted lines the direction of the current throughthe coil of relay M and magnets M and M is reversed, upon operating either of the push buttons 1 or I" from what it is when such arm-s occupy the positions 'seenin full lines. l.his'pole changer may be of any desired form and be located at any desired point, so long as it accomplishes this Work in the apparatus. As shown, it is assumedto be located adjacent to push button P and operable from the same point that the button is operable.

hen it is desired to render the apparatus for a single car inoperable for a considerable period of time the pole changer P is operated and its arms 12 and 17 are moved from the positions. seen in full lines to those seen in dotted lines and then upon either push button, as P or B, being operated the circuit is closed as before, but the direction of the current is reversed. This reversal does not change the operation of armatures m and m upon cam plate E but does change the movement of armature m of relay M and its direction of movement is reversed and it is moved from the position seen in Fig. 9 to that seen in Fig. 11, then when the circuit is broken the parts are held in the positions seen inFig. 11 until the pole changer is again changed and the circuit again closed when armatures m and we will be attracted toward. their magnets and armature m will be moved from the position seen in Fig. 11'to that seen in Fig. 9, and then upon the breaking of the circuit and deenergizing the magnets armatures m and m with cam plate E can move under the stress of spring-.5 to the position seen in full linesin Fig. 9, and the' apparatus is operative as before.

From the foregoing it will be seen that there are two kinds of means by which the coacting relations of theswitch device or devices may be changed and also that there is holding means consisting of the polarized relay and connected parts. second means control the first in that such second or additional means suspends the operation of the first and holds the parts of the second means in the changed positions for an indefinite time and without otherwise interfering with the first means than temporarily suspending the normal operation of the same.

Other forms of switch devices and actuating means than what is shown in Figs. 1 to 1i may be employed, if desired, that is, switch devices of the character ofthose seen in Figs. 21, 22 and 23 may be used or devices of the character, shown in Fig. 1-6, or of any other desired form or character, accordingly as the constructor of any given Also that the of actuating means may be employed which are suitable to coast with the particular form of'switch devices used and operate the same to open and closethc circuits, as, for iiistance actuating means of the character shown in ili s. 21 22 and 23 may be employed to coact with the form of switcl devices therein shown, or with any other form adapted for use therewith and do this work, or means such as are shown in Figs.-

15, 16,17, 18 and 19 may be employed to actuate the form of switch devices indicated in Fig. 16, orany'other form with which such means will suitably coact to close and open the circuits. Or other forms than herein shown may be employed so long as they are adapted to do the work of opening and'closing circuits and some portion or portions of either the switch devices or the actuating means are made movable to change the coasting or operative relations of one relatively to the other, or the operative relations be changed by devices or members combined together in substantially the manner and having the characteristic mode of. operation of any of these combinations here in set forth and particularly pointed out in the claims hereunto annexed,

Instead of the means for changing the coacting or operative relations of the switch devices and actuating means seen in preced ing figures thedeviccs and means, seen in Fig. 16, may be substituted for those seen in Fig. 1, that is, the carriage and abutting i surfaces seen in Pi s. 15 16 17 and 18 ma be substituted for the carriage C, seen in provided with a'butments or abutting sur- Fig. 1, and the switch devices seen in Fig. l6zinay be substituted for those seen in this Fig. 1, of course, the dimensions of the parts being suitable to do this. When the switch devicesseen in Fig. 16 are thus substituted there'will be "controllers and switch devices for two cars. one for each of the carriages C and C: 10 operate such swltch devices and controllers the parts and connections seenin Fig. 1 would be duplicated for the second carriage or car to make the two correspond, one with the other. The mode of operation in such case would be substantiallythe same, as h'ereinbefore set forth, notwithstanding the different constructions of parts in the two carriages and the two Iforms of switch devices.

; \wInFig. 16 two controllers or lengthwise slidable bars, as D and D, are seen-each having two. .switch B, B respectively. These cont-rollers, as D and D are mounted in ba rs, .as Yeaid Y so as to be moved .back and forth there in, as controllers D, D and D in Figs. 1,2 and: 3.:do, and they are to 'be retained in positio. where theswit-ch devices are in the inoperat eflcondition and are to bem0ved tll ero'from devices, as B B,'a.nd

into operable condition by sub-i stantially t-he'same means as are employed in such figures. As shown in Fig. 16 controller D is in the position it and switch devices B. and B, mounted thereon, occupy when the carriage, as C in moving upwardly, asindica-ted by the arrow thereon, is just upon the point of leaving or passing by and beyond the movable or coacting part of switch device B and after having moved such controller and switch devices a distance equal to that between the end of the abutment in its inclined position and a, straight line parallel to the direction of motion of the carriage C and passing through the point where the abutment first engages with movable part afizwhich is sufficient in extent for such part a, as the carriage moves upwardly, to swing on its pivot and move out of a position where the a butment on the carriage would engage therewith on its next upward movement, unless controllerD had been in the meantime moved to the left. to the position from which it was movedby the first upward movement to the one seen Y in F ig.' 16. These switch devices, as B, B &c., like switch devices, as B, B, &o., are normally in an inoperable conditlon and are 'moved into an operative condition, or a position where they are operable by the devices carried by the carriage, as it moves up and down past the switch devices, as is fully explained in connection with the switch devices and controllers seen in Figs. 1 to 14,.

The carriages, one for a car as C and C? seen in Fig. 16, one of which is seen in Figs.

15, 17, 18 and 19 on an enlarged scale are faces, as 0 c c and c", which, when in operative or coacting relations to the switch devices, are inclined to the direction of move ment of such carriages upon which they are mounted. As here shown only one of such aEb-utments on each carriage is in this in clined 'or operative position at atime the other one being then substantially parallel with the direction of movement of its respective carriage. As seen in Fig. 16 abutmentor part c of carriage C is shown in this substantially parallel position, as such carriage moves inthe direction of the arrow thereon, abutment or abutting surface 0 beingseen in the inclined position, so as to enga-gewith part a of switch B close the "circuit through-part a and spring 7) (the two open terminals of such circuit) and then force controller D by the inclined surface 0 acting on part a, to the left, as such carriage C continues its movement downward, thereby operating and doing the same work that is done by carriage C in moving upward, and also the same work done by segment's, as a a, &c., in connection with parts as a a &c., in Figs. 1 to 14. These a'butments, engaging surfaces or parts, as 0 0 &c., and carriages form actuating means, or means by which the switch devlces for two cars are actuated to close the signal:

condition, are engaged by the inclined surfaces or abutments on the carriages and by reason of such parts being pivotally mounted on such controllers necessarily force them.

lengthwise away from the central line of 'movement of the carriages where the switch devices carried by the controllers are out of operable. condition, that is, in their inoperable condition, the inclined abutment on either carriage moving its respective controller, with the switch devices carried thereby for'both-cars into the inoperable 'con-' dition or position. Such parts, as a, a, &c., may form one terminal of each of the circuits the other terminal being formed by springs, as b 5 &c., and thus each part and its respectivespring will form a pair of terminals for a circuit, as the pairs b, b, &c., do, which, when brought into engagement, one withthe other, operate substantially as each of the pairs 1), b, &;c., operate. The inclined or abutting surfaces, in operating the switch devices engage with the ends of the parts, as a a a, &c., farthest from the terminals, as If, 5 Z), &o., and are moved into substantially a horizontal position, as part a" isshown in Fig. 16, bring ing the opposite ends thereof into contact 2 with their respective terminals, and, as the carriage continues its movement, either up or down, as the case may be, the sliding bar or controller carrying the .switch device, whose movable part, as a, &c.,' is in engagement with I its coacting abutting surface, is forced away from the central line of movement of the carriage until it has reached a point where such surface moves beyond such movable part, where the bar or controller may be detained or held by any suitable means, as, for instance, such as is shown in Figs. 1, 2 and 3, or any other desired means, until released and moved into position for such surface to again engage with the movable part and repeat the above operation. There are two of these abutting surfaces on each carriage, as 0 0 c and 0 Fig. 16, and they are movable upon the carriages'as C and C and are adapted to move into and out of engaging position relatively to the movable parts of the switch devices, so that as the carriage moves upwardly, or in the direction of the arrow near top of Fig. 18, such surfaces or abut? ments occupy the positions there seen in full lines and then, when the direction of movement of the carriage is reversed these abutments or surfaces change positions and are moved fromthose seen in full lines to those seen in dotted lines in this Fig. 18.

' end-s.

In this way only one abutment oi'surface on each carriage is in position to engage with the -movable part or parts of the switch device or devices, in operable condition, and actuate the same and move the controller and switch devices for two cars into inoperable condition, the other abutment or surface being substantially parallel with the directionof movement of the carriage. These abutments Or abutting surfaces 0 and 0 of carriage C, seen on an enlarged scale in Figs. 17, 18 and 19, are pivotally mounted onstuds, a-s2e* and 6 respectively, and are connectible and'disconnectible with partsv 0 and respectively, which are also pivotably mounted on the same studs 6 and e,

which in turn are fixed in the main plate E of the carriage G.. -These parts 0* and c are substantial duplicates of one another,

and in this respect are like abutments. 0

and 0 The parts 0 and 0 are between abutments 0 and 0 respectively, and the plate E", as seen in Fig. 17, and one of them, part 6 is seen in Fig. .19, where the abutment 0 is disconnected therefrom and moved into substantially a parallel position. Abutments c and c are connectible and disconnectible from parts 0 and 0 respectively by pins c and 0 fixedto abutments 0 and 0 respectively, and detents or latches 0 and c pivota bly mounted in parts 0 and 0 respectively. Detents c? and c are movable relatively to pins 0 and 0?,respectively, and are moved toward and into engagement therewith by springss and 8 respectively, Figs. 18 and 19, which are connected with parts 0* and 0 respectively, at one end, and to rods 0 and 0 ,respectively, at their other These rods 0 andc are mounted tp move endwise by being pivota'bly connected to detents c and 0, respectively, and slidable in bearings formed in parts 0 and 0 respectively.

ends farthest from detents 0 and c and are moved against the stress of their springs 8" and s, respectively, by spring pie'ces p and p attached to pivotally mounted levers p and p, which are movable in one direction by the armatures m and m of electromagnets M and M respectively, and in These rods 0 and 0 are bent at substantially a right angle at their as shown.

means of a rod 7), of suitable material attached at one end to armature m and passing through a central opening in magnet M in awell known manner, and its free end engaging with lever .29 as seen in Fig. 1 7. This rod guides and supports the armature m, in its movements,when; magnet M is energized and de'e'nergized. Armature m is provided with a similar rod 9 which serves the same purpose as is served by rod 72", as just described. These rods 77 p and the manner of their connection with their respec- .tive armatures and passing through magnets M and M is clearly seen in Fig. 20.

The detents c and have a portion which extends beyond the pins 0 and c ,-respectively, as shown, against which the pins may engage and force the detents against the stress of springs s and 8 respectively, into positions so that such-pins may engage therewith and fasten the 'abutments, as c and c, to the parts, as of and 0 respectively, whenever eitherof said abutments is disengaged therefrom and free to move under the stress of their respective springs S and S These detents, as 0 and c, with their connected parts by which the abutments or surfaces, asc and 0 are disconnected and connected with the parts, as 0* and form means by which the operations of the parts which move such abutments as above described, are temporarily suspended and permit other means to control such abutments. These abutments, as 0 and .0, are constructed with right angle portions, as 0 and 0 more clearly seen in Figs. 17, 18 and 19, with which s n-ings-S and S respectively, are connected at one end, the other ends of such springs being connected with main plate E These springs tend to move such abntments into their inclined positions, when free from the.- control of parts 0 and 0 which are pivotally and are provided with supplemental arms a and a, respectively, which are connected together by a link 01?", so as to move together, that is, so that both move when either one of -such rock shafts N or N move. Each of these rock shafts is provided with a third arm at one side of supplemental plate E, as n and n respectively, Fig. 15, which in turn is provided with a spring pressed pawl, as n and a, respectively. Each pawl is mounted on the same studs 6* and e respectlvely, as the abutments are mounted.

provided with a spring, as n aud t respectively, also with a'stoppin,'as a and a, respectively, to pe-rhiitthepawl to move against the stressof its sp'ringand prevent its movement in the opposite direction,'substantially in the mannerthespring pressed pawls n and a operate in Figs. 8, 9 and 10. These pawls a and n coact with studs, obstructions or projections affixed to the frames of the apparatus as do the corresponding pawls in Figs. 1, 8, 9 and 10, that is, as the carriage G moves in one direction one of such pawlsisin position to contact with its respective stud orstuds, and either pass by without actuating its rock shaft, or to engage and operate such sha ft,as the case may be, and also when one rock shaft is actuated its movement operates'the other one, cha nging its pawl from a position where it will not contact with and bemoved by its respectiv stud or studs into a position where it will engage therewith, and moving into contacting or engaging position, as the other. pawl moves out of such position, by reason of a direct engagement with its respective stud or obstruction. These pawls a and a, like pawls a and 177, are arranged to operate and pass by the stud or studs without actuating the rock shafts for one direction of movement, but for the other direction of movement they will engage therewith; this is a preferred arrangement because it is the preferred way of arranging them and pernuts any desired number of studs or ob- 'structions to be placed in their path of move- 'ment without actuating the rock shafts. If

arranged to engage with the first stud met with in'such path and actuate the rock shafts, then this movement of the shafts would occur just before the carriage reached the end of its movement in each direction. and this would interfere with the use of intermediate studs or projections between those at or near the ends of the movement of the carriage. These rock shafts and their connected parts mounted each on the carr'iage form a. portion or portions of the means by which the coacting or operative relations of the switch device or-devices and actuating means'are changed, as in the construction seen in preceding figures of the drawings. Studs or obstructions, as 0 0,

0 &c., may be empl yed in connection with I these pawls n and 11 and their connected &c., Fig. 15, by means of the elbow levers nected together by a spring S so that the stress of such spring tends to force the bev ,eled or wedge shaped ends of these levers against the beveled or inclined surfaces of extensions 7- and T1 and thereby move such extensions and the arms at andn away from the elbow leversturnin'g the rock shafts in their bearings somewhat until the stop pins 1' and r in supplemental plate E", for levers-r and W, prevent further movement of such levers. These levers r r act somewhat as dothe lever and bar on which wedge shaped parts r r and 1- are formed and with like effect on the rock shafts. v

As seen in Fig. 20 m of magnets M and M are locked in position to' hold them against returning to their normal positions, when these magnets are denergized, by pieces of suitable material, as m and m, attached to armature m of polarized relay M. This armature m is pivoted'at m, so as to freely move between poles m and m of relay M. In.

F igs.'l5 and 17 the armatures m and m of magnets M and M are seen in their normal positions, as when such magnets are deenergized with its armature m of relay M in the position for pieces on and m* to be out of engagement with arinatures m and m, and these armatures may move back and forth as the magnets are energized and denergized without hindrancefrom pieces m and m of armature m, so long as they current passes in a direction through the coils of the relay and electromagnets to hold the armature m substantially in contact with pole'm of relay M, as seen in Fig.

'15. VVhenthe current is reversed and the armatures m and m are attracted by their respective magnets the armature on. will be moved substantially into contact with pole m of the relay, as seen in Fig. 20, and the.

pieces at and m be moved in between armatures mt. and m and they cannot return, when .magnets M zand M are deenergized, to their normal positions until armature m is moved over toward pole m sufliciently for armatures an and m to pass by the ends of pieces m and m respectivcly. lease or unlock these armatures m and m the current is put through the circuit in a reverse direction, (in any well known or desired way, as for instance by a pole changer and push button, as. shown in Fig. 1) from that in which it passed when the parts were brought into the positions seen in Fig 20, and then upon the breaking of the circuit and deenergizing magnets M? and M the parts will assume the positions seen in Figs. 15 and 17. When magnets lV and the armatures m and \Vhenever it is desired to re-,

M are energized and the parts are, brought ments or abutting-surfaces c and 0 will be unlocked,-(by the movement of rods 0 and c and the withdrawal of detents 0 and. 0 against the stress of springs s and 8 or initial or first portionof the movement of levers p and p and then, when the free ends of these levers as p and p engage with the portions-c and 0 of abutments c and 0 respectively, such abutments will be moved against the stress of springs S and S and be brought into the positions-seen in full lines in Fig. 19. When this is done the parts 0 and of? remain in the positions they were at the moment, when these magnets were energized, but they continue moving into and out of inclined a-nd parallel positio'nsjust the same as if such abutments c 0 had not been disengaged therefrom,

It is to be observed that in' Fig. 18 the parts or pins 19? and p of levers p and 2 stand some little distance from portions 0 and 0 of abutments c and 0 while the spring portions 29* and p 'attached to such levers are substantially in contact with the sequently upon the first portion of the movements of such levers, by the movements of armatures m and m upon the energizing wise withdrawing detents, as 0 and 0 out of engagement with pins, as 0 and a, attached to abutments and c and holding return to their normal positions. After these detents are thus withdrawn the ends 39 and .79 of such levers may engage with the angle portions 0 and 0 of the abutments and in an inclined position into substantially the parallel position and hold it, with its cornshown in Fig. 19. These parts or ends, 2 and p of these levers p and? hold both levers are held position by the magnets being energized, .or; by the armatures of such magnets being held in substantially the attracted positions by the armature of the sult of moving the abutting or coacting surfaces, as 0 and 0 into the positionsseen in Fig. 19, and holding them in such positions in Figs. 1, 8, 9 and 10, and the mode of operation is essentially the same in each case. In fact'the two, are so nearly identical in mode of operation that the construction of carriage, as- C or C and connected parts seen in Figs. 15 to 20 may be substituted, as before explained, forthe construction of carriages and connected parts shown n F 1g. 1,

disengaged from parts'c and 0 upon theangle end portions of rods 0 and 0 Con move the abutment which is, at the moment,-

panion abutment, in the parallel position, as

abutments in the substantially parallel positions, as shownin Fig. 19 solong as suchinto the positions seen in Fig. 20 the abut- I of the magnets, these rods are moved endthem withdrawn until such levers p and p polarized relay, as seen in Fig. 20. The rep .is the same as in the case of parts 0 and 0 e by simply connecting the wires 13 and 16 seen in Fig. 15, with Wires 13 and 16,-

(through binding posts 13 and 16 seen in Fig. 1, upon the substitution of one for the other. Wire 13*, seen in'Fig. 15, connects binding post 13. with magnet M, which in turn is connected with the coils of relay M by wire A, which coils are connected with magnet M b wire A and such magnet is connected to hinding post lli 'by wire 16. The armature m? of this relay M and conneeted parts form a holding or looking. de-

vice. The. polarized relay and its connected Instead of moving the eoacting or abut-- ting surface'or surfaces carried by the. ear: riage or-actuating means, as shown in preceding figures of the drawings, a portion or portions of the switch device or devices may be'moved, as indicated in Figs. 21 to 25 in elusive, without materially altering the mode of ope'rat-ionof changing the coactingf relations oftheswitoh devices and actuating means, one relatively to the other, whether this be done at .difi'erento'r stated points in the travel of one relatively to the other, :at

will,'or,otherwis e. Also, instead of changing these coacting or operative'relations by mechanical means operating'as heretofore described such relations may be changed by other means as by electrical devices largely, as shown in Figs. 2 1 and 22, wherein movable contact devices are shown which are adapted to make electrical contact with relatively fixed contact devices, as the actuating means are moved 1n one direction. and not to make such contact as such means move in the otherdirection. In Figs. 23 to 25 means are added to those shown in Figs. 21 and 22 by which this change in coacting' or operative relations may be made to take place at will, held changed-for the desired length of time and then changed back again or restored, Without. interfering with the operation of the, means shown in these Figs- 21and22.

Switch devices B, B, B and B Figs. 21 to 25, consistof 1a pairof terminals for eachdevice insulated from one another, normally open, and mounted on bars or controllers. D D D and D r'espeetivel which controllers are movable in bars Y and Y -mounted fixedly on frame F seas to move sueh' pairs of terminals, as b, 6

b" and 6 respectively, into and out of po sition to be closed and opened by being forced into contact and released therefrom, by pivotally mounted parts a, 0. 311 and a, respectively, when these parts are in the position in which parta is seen in Fig. 21,

and where the terminals b are seen in the inoperative position. Thesefpivotally mountedparts, as a, a, 8113., are not carried by the controllers, as D D, &c.,' as are the aartsa a 'seen in Fi 16 and )arts a a or supports as a, (0 a and a ,which are &e., seen in Fig. 1, but are mounted on studs fixed in bars, 10 and c0 affixed to the frame F and they hold the parts, as a, 0. &c., in position to'be moved in one way-or the other by the movement of the carriageC past the switch device s, so long as the coacting or operative relationsbetween such parts and actuating means are not changed, as shown at the right of Fig. 21, where parts a and a are movedout of coaetingrelation with abutting portion 0 of the actuating means or carriage C. These parts a, a, a and a Jmay be normally held in the position mount- I ed part (1 is seen to occupy in Fig. 21, in

the same manner that parts, as a, af, a, &c.', j are seen to be held in. Figs. 1 to 7 and by similar means, that is by two arm springs, as seen in F 1g. 22,. where spring is arranged relatively to part a the same as corresponding springs are arranged in Figs. 2, l 5, 6,

and? and to operate, asthe springs, as is, is,

&c., are described as operating to normally hold its part in a" given position.

The controllers, D D ,-D and I) may be movedby springs, as S to bring the switch devices into operative condition, that is into position to be operated by mounted parts a, (1 .311 and a Fig. 22 and, as S,

S,'&c., of Fig. 1, upon being released by armature, as m flofmagnet IV and armatures as m m &c. of ma nets M M at. 7 7 7 b 7 3 7 of Figs. 22 and 1, respectively, which detain or hold such controllers out of operative position. The means-shown in Figs. 21 and 23 for thusmovingthese controllers consist of rollers, as'z", i i and z", mounted on the controllers, as shown and pivo-tally mounted spring pressed abut'ments or inclined surfaces I and I mounted on and carried by the carriage C These abutments,as I and I, are movable in one direction against the stress o'f'springs and are held against movemen-t in the other direction by suitably arranged-springs and stops the same as is the case with spring pressed pawls n and n of -Figs. 8, 9 and 10, or pawls n and n of Figs. 15 and 17 These abutments I and I i like these pawls are each movable on the carriage to permit of their passing by an obstruction by moving on its support, as the carriage moves in one direction and is prevented from so movlng, when the carriage moves in the other direction, and" when .pre-

vented from so moving it coacts with its re spective obstruction to cause movement to take place of one relatively to the other, the only difference being that in one case the pawl bodily moves, while in the other the obstruction bodily moves. This is due simply to which one is to be moved by the other in the coaction of the two and not in the.

manner of mounting the spring pressed part.

As thecarriage C moves upwardly spring pressed abutment I engages with the rollers or abutments i and 11, Figs. 21 and 22, when in engaging osition, and moves controllers D and D back into the inoperative posi .tion for the switches. \Vhen the carriage C moves downwardly this spring pressed abutment I passes by the rollers, as 2' and i, attachedto controllers, as D and B, when such controllers are in the position controller D is shown to be in, in Fig. 21, but engages with those of controllers in the position that controller D is in and moves against the stress of it's spring and also moves on its pivot without moving or disturbing the controllers. Controller D is shown in Fig. 21 as being in the operative condition, that is, in position where the pair of terminals 6 will be closed by the upward movement-of the actuating means or carriage Ccausing the abutment portion or surface thereof, as

0 to move part a from the position there shown into a position corresponding to that occupied by part. a. These terminals remain closed-until part 0 has passed by part a, when such partwill be ready to return to the position it is now seen to occupy in Fig. 2l,'wh'en spring pressed abutment I, as it reaches roller 2, (in the upward movement of carriage C engages therewith and moves controller D and its switch 'device, 1% into a position corresponding to that occupied by controller D, Fig. 21. The relative positions of the spring pressed abutment I and rollers i and controller D is also indicated in Fig. 22, where the parts are and the other downwardly. When. the lever U reverses its movement the movement of the bars is also reversed. Each of these bars, as U, U, is p ovided with vertical slots which permit t em to moveup and down certain distances onstuds, as a a &c.,.as shown. At each end" of this lever U an armature of a magnet is'mounted', as m and m of magnets M and M, which magnets i are to be energized, one at a time, that is,

one is to be energized as the carriage C moves upwardly and the other as the carriage is moved downwardly, and each, as it isenergized, attracts its own armature moving lever U on its fulcrum and moving bars U and U, one up and the other down, as before explained. Lever U has its fulcrum mounted on a plate, as U Fig. 21, or on a plate as U 24, or otherwise, accordingly as it is desired to construct the apparatus. \Vhen either plate, as U or U, is-

employ ed it may be mounted or affixed to the apparatus in any desired manner, as, for-instance, as shown in Fig. 24, by studs or otherwise, and such fulcrum may be fixedly or movably mounted on such plate, as desired. In Fig. 21 the fulcrum is shown as fixedly attached to plate U and in Fig. 24 this fulcrum is movably mounted on plate U. The plate U is omitted from Fig. 23

for clearness of illustration, the studs by which plate or bar U is slidably mounted on moves between magnets M and M and their armatures and lever U is made in the form shown in plan view in Fig. 23, so as not to interfere with the movement of such carriage. In Figs. 23 and 24 the fulcrum of this lever U is affixed to a movable piece or bar U mounted on plate U to move vertically thereon, as clearly indicated in Fig. 23. This bar or slidable pieceU carries an armature m coacting' with magnet M mounted on frame F or elsewhere by any suitable means to hold'it in place relatively to the other parts. A spring, as S is connected at one end to this, iece U and to the other end to plate U Flg. 24, and its stress pulls piece U upwardly as far as the slots therein and the studs u and u will permit and holds such piece firmly in its uppermost position, except whenit is moved downwardly by the 'stress, of such spring being overcome by magnet M attracting armature m and movlng piece U downwardly into the position seen in full lines in Fig. 23, such piece matically by means of a locking device or i I detent V engaging with a part of it or the armature attached thereto,in the manner in dicated in Figs. 23 and 25. This detent V is shown in Fig. 23, in full lines as'engaged with the armature m in such manner as to .lock piece U in the position there seen in full lines. This detent V is pivoted at V, Figs. 23 and 25, and a'spring S, Fig. 25,

tends at all times to-move detent V into en-- gagement with armature mf This detent-or "locking'device is moved against the stress v of its spring S by a'magnet, as M=,.moun tergized from any desired source or sources,

as, for'instance, magnets M and M may be energized from source, as Z, and magnets M and M from source, as Z Circuit making and breaking contact devices, as o and o are movably mounted on carriage C and suitably insulated therefrom, one of which, as v, is constructed to make electrical contact as the carriage begins to move downward, as the pawlslare made to engage and change the operative relations of the switch devices and their actuating means, when arranged as seen in preceding. figures, and the other movable contact device, as 4), acts ina similar way when the carriage begins its upward movement, also as is the case when the pawls are arranged as in preceding figures. These contact device's, as-o and o'are also so constructed that they pass by their companion fixed contacts without making electrical contact therewith; this is accomplished by providing them with insulating material on one side thereof, as shown, and therefore they do not energize the magnets in making physical contact with the fixed contacts, as @5 0 o and o, except in one direction of movement. of the carriage, on which these movable contact devices are mounted. In this respect the operation is in efl'ect the same as in the case of the movable pawls inpreceding figures. Also the result is the same in one case as in the other, that is, the

change in the coacting o'r operative relations of the switch devices and that which operates them to close the circuits takes, place immediately after the. change in the,

direction of movement of the actuating means relatively to the switch devices, in both cases. In each case portions of either the switch devices or the actuating means are moved, one relatively to the other, in

making this change in the coacting relations between such devices and actuating means, and the movement of either is equivalent to the movement of the other. These movable contact devices, as o and o are suitably insulated from each other and the carriage and also normally held in a given relation to the carriage C and their respective fixed contacts, as '0 v '0" and '0 by two arm springs, as is and Fig. 22, acting thereonas the two arm springs, as 76,10, &c., act.

on parts, a, a, &c., in Figs. lto 7, also as two arm spring 76 acts on part a, in Fig.' 22, and as before explained. These movable contact devices, as '0 and-'1), and the fixed contacts, as '0 v '0 and o? are connected' with magnets M and l\ and ating means occurs.

source, as Z as follows; from contact device 'v, on carriage G a wire 01 leads to magnet M, from thence a wire o leads to source Z from source Z a wire o connects with fixed contacts 11 and 71 through wires e and '0, respectively, and alsowith fixed contacts 01 and o by wires 22 and '0 respectively; from contact device 1), on carriage G a wire '0" leads to magnet M, from thence by wire 11 to wire o which lead to source Z The operation of changing the coacting or operative relations of the switch devices and the means which operate them is as follows: As carriage C moves. upwardly the insulatedside of contact device 21 on the carriage is brought into physical contact first with fixed contact 12 and then with fixed contact 11 and passes by both without making electrical contact therewith, then upon a reversal in the direction of movement of carriage .the non-insulated side of this device 21 comes into contact with fixed contact o again and as it wipes or moves past it electrical contact is made betweendevice 'v and contact 11 which results in magnet M being energized) and armature m moved into the position relatively to its magnet that the armature m occupies as seen in Fig. 21. This would bring the out of the position seen in Fig. 21, a second energization of magnet M does not change its position and that of lever U and no change in the coacting or operative relations of the switch devices and their oper- As the carriage moves downwardly the insulated side of contact device 4: comes into physical engagement with fixed contacts '0 and 12 but electrical contact is not made therewith on this downward movement. Then upon the carriage reversing its direction of movement the noninsulated side of this contact device '0 contacts with the first fixed contact reached and the electrical contact between the .two is made and magnet M is energized and armature m 1s attracted and the posltlons of the bars U and U are reversed by the rocking of lever U on its fulcrum into the positions seen in Fig. 21'. This changes the" coacting or operative relations of all the switch devices which are inoperable condition,by moving or changing the positions of allthe switch coacting parts, as a ,a &c.,

carriage continues its upward movementbringing those controlled by the bar U into positions corresponding to those occupied by the corresponding parts controlled by the bar U and those controlled by the latter bar into positions corresponding, to that part a is seen to occupy in Fig. 21, then as the contact device a may contact with fixed contact-o, and as many others as .deslred, without making any change in the coacting relations of the's'witch devices and actuating means, one relatively to the other, as the moved by the energlzation of magnets M and M the-lever U? rocks on its fulcrum and one'bar and armature move toward-one of such magnets and the other bar and armature move away from the other magnet. -Whenever it is desired v to change the coacting'v or operative relations of the switch devices and the means which operate them at will,'or by other means than the above rocking movement of lever U on its fulcrum w, this may be .done by the movement of the vertically mov able bar or piece U Figs. 23, 24 and 25, which is movably mounted'on plate U with a limited extent of movement on studs'a and a", Fig. 23, seen in cross section. As before explained this bar, .as U, has attached at its lower end an armature m wh1ch, upon the energization of magnet M is attracted moving such bar against the stress of its spring S, which normally,

holds it in the'position seen in dotted lines in Fig. 23 and in full lines 'in Fig. 25, and at the same time moving fulcrum as, of

lever U downward into the osition seen in full lines in Fig. 23, thus bringing such lever into substantially a horizontal position, also as seen in full lines insaid figure.

Magnet M isconnected, as shown. with source of energy, as Z by wires 023,0 9, 51

and 0 wires '0 and '0- connectin with push button P where the circuit is normally open. Upon operatingpush button P magnet M will be energized and bar.

U and connected parts be moved downward, as before explained. This downward iovement of this lever'and itsfulcrum 0:

brings both of the bars U and U intosubstantially their lowermost positions in the construction shown, and consequentlybrin s the coactihg pieces, as a, a, &c., of t e downward-Iby fulcrum an. A

movable is the one which at the moment is switch devices into-the positions, that these pieces or parts a and a are seen to 00- cupy in this Fig. 23, where all of such parts or pieces are so moved out of coacting or operative relationsv with the means which operate them, (to close the terminals of the switch devices,)' thatsuch means may move up and down past such coacting parts indefinitely without having efi'ect thereon and consequently on the switch devices, until the normal relations of the two are reestablished. I

In the normal operation of this form of apparatus one of the bars, as U and U, is always in substantially its lowermost position, that is, at substantially its-lowest limit of movement on thestuds, as u, u &c., and

hence only one of these bars is .movable to a an substantial extent by the movement The one thus inthe uppermost position. Upon the downward movement of fulcrum a: and lever U this lever fulcrums upon the one of its connections to bars U and U, which is in the lowermost position, because that bar is at its lowermost position and cannot move far-1 ther downward and'the connection of such bar with lever, as U or U. By reason of this lever thus fulcruming the one of the armatures which is in the highest position moves downward into.a position where the lever U will; be substantially at right angles to bars U and U,.as seen in Fig. 23, and the other armature will move upwardly slightly, according'to the difference between the tyvo arms of the'leVer, at the moment. As bar U is thus moved downwardly against the stress of spring S lockingor holding detent V, under the 'stressof its spring S moves on its pivot Y @into the position seen in fulllines and into engagement with a portion of the armature m?? and such bar and fulcrum are held or locked in the downward. position until such detent 'is moved against the stress of its spring S sufficicntlyto permit spring S to returnv bar U .to its. normal position, as seen in dotted lines in Fig.23. This detent or looking device V is moved against the stress of spring 8 by armature 972, and magnet M fup'on energizing the latter, which may be accomplished by connecting source of energy, as Z with push button,.as P and magnet by wires, as follows: from source Z wires 42 and a lead to magnet M and Wire o 'l'eads to push button P and from this push=button wires o and @2 lead to source Z again. In practice these push buttons, as P and P are to be placed at convenient points ias desired and the circuits will be runvin any desired manner to suit in any wellghnown or desired way. Theimode of operation will be the same no matter where these push buttons may be placed and the

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