US708755A - Elevator. - Google Patents

Description

No. 708,755. l Patenfed Sept. 9, I902;

' M. A. CLENNAM. I

ELEVATOR.

(Application filed Jan. 2;6, 1901.

(No Model.) 6 Sheets-8heet I.

owvtoa No. 708,755. I I v Patented Sept. 9, I902.

\ I m. A. CLENNAM.

' ELEVATOR.

Application filed. Jan, 26,1901.) 4 (,No Model.) v 6 Sheets- 8min 2.

awoe'vvtoz No. 708, 755. 7 P tented Sept. 9, I902.

M. A. CLENNAM.

ELEVATOR. (Application mm Jan. 26, 1901.

QNo Model.) 6 Sheets-Sheet 3.

Hlllllll" "i iiiimww ill,

Patented Sept. 9, I902.

M. A; GLENNAM. E L B1! A T 0 R (Application filed Jan. 26, 1901,

6 Sheets-Sheet 5.

(ho Model.),

A N ni/i No. 703,755. Patented Sept. 9, |902.

- m. A. CLENNAM.

ELEVATOR.

(Application filed Jan. 26, 1901. (No Model.) I 6 Shaets-$heet 6.

harness? MILTON A. CLENNAM, OF SAN FBAN )ISOO, CALIFORNIA, ASSIGNOR TO OAHILL A: HALL ELEVATOR COMPANY, OF SAN FRANCISCO, CALI-- FORNIA, A CORPORATION OF CALIFORNIA.

ELEVATOR.

SEEGIFICATION forming part of Letters Patent N0..' 708,7 55, dated September- 9, 1902. Application filed January 26, 1901. Serial No. 44,773- (No model.)

. Elevators; and l hereby declare the following to be a full, clear, and exact description of the same.

My invention relates to improvements in elevators for buildings and for like uses.

It consistsof a mechanism by which an elevator-cage or like movable device is raised or lowerodin a suitable well orguideway, means by which said movable portion may be started from any point at which it may be standing and moved in either direction up or down to any'other stated point where it may be desired to have .the movable part stop.

1 It comprises mechanism which may be operated from any floor or station independent of the station at which the cage may be stand ing and by which mechanism'the cage will be started from its position and caused to move either upward or downward, an automatic mechanism by which the cage or movable part will he stopped at any other desired station without further attention.

it also comprises details of construction ,which will be more fully explained by refer- .tor, brake, and governor.

ence to the accompanying drawings, in which Figure lisan elevation showing three doors or stations, winding-drum, and portion of the other ,inechanisin. Fig. 2 is a plan View of same, showing door, direction-switches, mo-

Fig. 3 is a view of the mechanism situated at the top of the elevator, showing push-levers and detect. Fig.

1 i is a similar view of the same at right angles with Fig. 3. device of the operating mechanism. Fig". 6 is a side view of the direction-switch. Fig. 7 is a diagrammatic view of the directionswitch. Fig. 8 is a vertical section, through the socalled floorswitch and cut-01f. Fig.

9 is a front view of the same. Fig. 10 is a diagrammatic viewillnstrating the operation of the device shown in Figs. 8 and 9. Fig.

11 is a view illustrating the means for step ping the cage at any floor.

Fig. 5 is a view of the locking This invention is generally applicable to elevators or hoists of any description Where it is desired to send the movable cage or portion to any door or station of a large number and to start it and determine its direction from thestation Where it may be standing or from any station other than this one and to determine at the time of starting the distance and direction to which the cage should go and set in operation a mechanism by which it will he automaticallystopped at the desiredpoint when the drum is rotated in either direction by the operation of any suitable motor. The

present illustration, whiledesigned to repre-' sent any equivalent hoist or elevator and any.

well-known means by which said apparatus may be operated, is here shown as being actuated by an electrically-impelled motor, as at The electrical current for said mot-or and for operating the floor or direction switches and other parts is derived from any suitable source or generator, and by suitable connections passing through the respective portions and parts operated by said current the various necessary parts are simultaneously set in operation to produce thedesired result. Y

As shown in Fig. 3, each door has fixed upon it a metal plate with a notch, as at 4, and a lever-arm 5 is fulcrumed to a fixed portion in such relation that one end of the leyerarm enters the notch 4 when the door is closed and is movable about the fulcrum-point when the door is opened. The other end of the lever-arm connects with a slide 6, and this slide consists of a guided bar having as many segmental grooves 7 made in its. edges as there maybe doors or stations, and there will be one of these bars at each of the'stations. 8 represents centrally-pivoted levers having handles 9, by which they may be operated. Each of these levers carries a segment 10, which is turnable with the lever, so as to engage with or be disengaged from the seg- 1 mental groove 7 of the sliding bar 6.

' tilted the lever-arm 8, carrying with it the segmentlO, which is so turned as to enter and engage the groove 7 of the slide, and thus prevent the slide from vertical movement, while the other levers, arms, and segments remain in such position that unless so locked *the slide might be moved. Each of these levers and segments represents one of the floors, and there are as many of them as there are floors or stations.

are shown. The upper lever 8, representing the third floor, and the connected parts will be hereinafter used in illustrating the operation of the device This lever has wires or ropes 12 extendi'ng-downwardly from it and connecting with thesimilar upper lever at each of the stations below, so that when the operating-lever 9 is pushed soas to turn the lever- -arm 8 it at the same time turns the correspondingleverarm at each of the floors below. In Fig. 1 the ropes 12 are all in the same'vertical plane, and therefore cover one another.. The movement last described will simultaneously turn each of the segments 10, andthus every one of the slides at each of the floors will be locked, so that no movement from any other floor can be effected while this look is in efifect. This prevents any interference with the operation of the apparatus which may at any time be taking place from any particular floor or station. The same movementof the tilting arm 8, acting upon the wires or connections 12 at each end of the arm, the wire extending upward, as shown in Fig. 3, pulls upon the bent lever 13, which is centrally fulcrumed, as shown at ll, and one arm 15, which is here shown as of non-conducting material, presses down a spring 16 into contact with a metallic plate 17, and as the spring and the plate are parts of an electric circuit such circuit is closed by this contact. By reason of the locking of all the other doors, as previously described, it will be manifest that no other circuit can be closed or actuated while the first-named one is operated. Therefore all control of the cage for the time,being remains with the operator at the first-named station. When the arm 15 is bronght down to make the contact between 16 and 17, the other arm In the present case three 18 moves up into contact with the core 19 of an electromagnet E, which acts as a detentmagnet, and as this magnet is energized at the same instant, as will be hereinafter described, this lever-arm 18 acts as a detent and is retained in position as long as the magnet is energized. This insures a continuation of the contact between 16 and 17 until the denergizing of the magnet releases the arm 18 and allows it to drop either by gravitation or, as here shown, by the action of the spring 20, connected with the wire 12 or other part, so that the parts here referred to will be restored to their normal position when released. When the lever-arm 18 is thus raised, it enters a diagonal slot 21, made in a horizontally-sliding plate 22. This plate is slotted horizontally and movable upon pins 23, passing through the slot into a fixed support. When the lever-arm 18 thus rises, it enters the lower edge of the diagonally-disposed slot 21 and in its upward movement causes the plate 22 to slide transversely, and as it thus slides the lower edges of the plate, which are between the slots 21, are brought into line with all the other lever-arms 18, and they are thus locked and prevented from being raised while the slide is in this position. The operation of opening the door takes place before any movement of the lever 8 is made, and as long as the door is opened the lever stands in the position shown in dotted lines, in which case the slide 6 will have been moved down, so that its grooves 7 are out of line with the segments 10, and the latter cannot be actuated as long as the door remains open' by reason .of the locking of. the segments. Whenever the door is closed, the lever-arm 5 is restored to its normal position, and then the slide will be in such position that the lever-arm 8 can be tilted, as previously described. This acts as a lock to the slide and 'to all the other slides connected therewith, so that no movement of any of the doors can be effected.

The tension of the wires 12 is properly maintained by turnbuckles or equivalent take-up devices located at suitable points in the length of the wires. When the electrical circuit is completed by the contact of the plate 16 and plate 17, an electrical circuit is established through the floor-switch, (shown at F in Figs. 1 and 2,) through the direction-switch, (shown in Figs. 1 and 2,) through the detent E to the brake, thence to-the service-switch, and from there back to the contact-plate 17. The

energizing of the direction-switch closes the motor-circuit. The direction-switch D is operated, say, by the two coils D and U and determines whether the cage is to go up or down, and it consists'of a series of copper pins a: to x, inclusive, and y to f. are surrounded by spring-barrels, the latter being screwed into a fixed fiber block 26. Below are two swinging fiber blocks 26, which have on their upper faces the carbon The pins strips 0 c and c c. The springs press thereof.

are respectively carried upon lever-arms, as

contact'with the strips and the breaking The strips 0 c and c and 0 850.,

27, Fig. 6, fulcrumed at 28 and connected intermediate between the fulcrum and the fiber blocks with the core 29 of the solenoid 30. When one of these solenoids is energized, the attraction raises the fiber block 26, carried by the arm 27, and this makes contact with the pins in-26, and thus completes the circuit for either up or down movement. If the contact is made for the up movement, the one for the down movement remains open. The series 66 are connected to y, m to y, x to yflw to g 50 and m are cross-connected with y aud t The contact being'thus made, the current will pass as follows: from the service-switch through wire a, pin 9', wire-a, pin or, carbon 0, pin 00 wire a thence in the direction of the arrow m through the motor- I armature to wire a and through the rheostat R, pin n3 carbon 0, pints, wire a 'to service,

thus-completing the circuit. The field-circuit branches off at w, passing through wire 8 s, thence through fieldf, wire s 8 pin 0%, carbon 0 to 410 there uniting again with the armature-circuit. -If the carbons c c are dropped so as to open the up side of the direction-switch and the carbons c c are raised so as to close the down side, the circuit is made as follows: through wire a, pin y, carbon 0 pin 11*, wire a pin m wire a and through the motor in the direction of the arrow m, thence through wire a pin x wire a, pin g carbon 0", wire a pin m wire a. The fieldcirc'uit branches-at y, traversing the wire 8 s, field in the same direction as previously described, thence throu li wire 3 s in 1 4 carbon c and uniting with the armature-circuit. The double break of the field-magnet circuit and the quadruple break of the armature-circuit are effected as follows: When, for instance, the first button is turned, plates 17 and 16 are contacting, which connects the plate 17. and. its wire 59 with the wire 41 through the spring 16. This closes a circuit whose current will pass over wire 41, the plate 33 of the floor-switch, thence to 39, through the arm 36, through the plate 33, thence'over wire 42, through solenoid D, (energi'zing the same and attracting the switchpl ate Down.) From this point'the current passes over wire 56 to the detent E and from thence over wire 57 through brake-magnet 25, over wire 58, switch S, wire aand 59, to plate 17. This completes the closing of the direction-switch circuit. As soon as thecage has arrived at its destined station the arm 37 will drop into the notch, and consequently the connection between 33 and 33 will be broken. This will cause the circuit to open over 42" to the solenoid D, denergiziug the same, allowing the'plate marked Down to drop and break the field-magnet circuit my 31 and the armature-circuit at y, 11 and 431 thus pro-- ducing a double break of the'field-magnet ch cuitand a quadruple break of the armature-circuit. The cutting off or" the circuit over the wire 56 will deenergize the detent E, thus breaking the connection between plates 16 and 17 by releasing the arm 18, breaking the circuit over wire 41 to plate 33, which conipletes the breaking of the circuit to operate the direction-switch. The discontinuance of the current over wire 57, leading from detent E, puts the brake in operation again and puts the wires 58, a, and 59 out of operation.

The floor at which the cage is to stop is determined by the fioorswitch, the position of which is shown at F in Fig. 2. This switch is shown in detail in Figs. 8 and 9. Itconsists of a non-conducting annulus or wheel 31, secured to a fixed box or support, as at 32, and having annular conducting- rims 33 and 33 extending around it and separated from each other, a's'plainly shown in Fig. 8. 34, 35, and 36are non-conducting extensions of arms 37, which are pivoted or fulc'rumed,

as at 38. The outer ends of the arms 37 carry the elastic metallic contact- pieces 39 and 40, and these are brought into contact with the rims by the tilting of the arms about their fulcrum-shaft 38. When this contact is made, the current passing through the wire 41 and rim 33, contact- piece 39 and 40, and the intermediate metal shaft, rim 3?), and wire 42, completes this circuit. The current to complete the circuit for either of the arms 34, 35, M36, two of which are always in contact wit-h the rims, will be derived from the closing of the circuit 1617, previously described, which determines the fioor to which the cage is to go. Thus the circuit 16 17 for .fioor No. 3 having been closed, the electrical current passes through that and'through'the corresponding wires 41', plate 33", spring connection-39, shaft-spring 40, plate 33 and wire 42", which leads to the solenoid to operatethe direction-switch and through it the motor. From the motor 3 motion is transmitted to turn the drum 2, and the direction of motion having been determined by the'directionswitch, previously described, the rotation of this shafttransmits motion through the pinion 43 and gear-wheel 44, as shown in Fig. 1, to revolve the shaft 45, which passes through the box or support 32, as shown plainly in Fig. 8. This shaft has keyed upon its outer end a disk 46, so that the disk is turnable with the shaft 45. The proportion of the pinion 43 to the gear 44 is such that the shaft 45 and disk 46 will be slowly rotated' in one direction while the cage is movingone way and rotated in the opposite direction when it is moving the opposite way. The oscillation of the disk 46 in one direction is equal to the full travel of the cage from bottom to top of elevatorshaft and corresponds in the opposite direction with its travel from top to bottom. The object of this is to cut off the current which .passes through the wires when the particular floor has been reached, and this is eit'ected by the inner end of the arm 37 dropping into a depression 47, which is made in a disk 48, loosely turnable upon the shaft 45 and interior of the disk 46. The disk 46 has a radial V-shaped notch 49 made in it and extending from the rim toward the center, as shown in Fig. 9. The loose disk 48 has a projection or spur 50, which projects from it into the notch 49, but having a less width in the direction of rotation than that of the notch, the disk 48 is capable of a small movement independent of the disk46 for a purpose to be hereinafterdescribed. Thecurrentpassingthrough the wires, as previously described, and the arm 34 being turned about its pivot-point by reason of the roller 51 on the inner end of the arm 37 resting upon the periphery of the disk 46, the arms. 34 37 will stand at an angle, as shown in Fig. 9, and the elastic contacts 39 40 will rest upon the rims, thus completing the circuit, which passes thence through the direction-switch and the motor, and the motor being thus energized sets the winding-drum in motion and starts the cage. The disk 46 travelsbeneath the roller 51 until the latter arrives atthe notch 49, and the roller will then be transferred'and supported upon'the periphery of the disk 48 until it reaches the pointwhere it can drop into the groove 47 of the rim 48. The disk 48 is of slightly-smaller diameter than the disk 46 for the purpose of preventing frictional contact with 48, which would otherwise be caused by the other arms 37 resting on the disk 46 and which would impede the independent movement of disk 48. The object of the independent disk 48 is to cause a quick sudden cut 06?, so that the cage will be stopped at-the moment it reaches the desired floor, and this is efiected by the lug on the disk 48. To demonstrate this, referring to Fig.9 and assuming that the arms 37 34 on the left side are to be operated upon, the arm in the center has just. been straightened and the right side wall of the notch 49' has caught up with the lug 50 is pushing 48 along in the direction of the arrow. In its further travel the left-hand wall of notch 49 will first reach the roller on 34 37, and the roller will be transferred upon the disk 48 and keep on riding on the same until notch 47 arrives at the roller. The moment the roller comes in touch with the notch 47 its spring 52 will force the roller down into the notch, and that will cause a pull upon disk 48 toward the radial line of the arm to which the-former before it had reached the bottomof slot 47,,

which would stop the whole mechanism before the cage had reached its destined floor. The operation of the device as here illusr trated, with the starting-levers 9 set tor the third floor, wouldthen be that the contacts 33", 39, and 40 of'th e arm '34 would conduct the current of the wires 41" 42, and theEdi-' rectionswitch D having been simultaneously set by the current, asv previously described, the disk 46 would be slowly revolved in the 1 direction which would bring thenotch-47 in line with the roller 51 of the arm 34, and when the notch has reached that roller the ljQllGi" would drop into it, and the spring 52,'throwing the arm immediately into an approximately radial position, will break the contac f.3 3 "f, 39 40, thus cutting off the current an fsto'p- SO ping the whole apparatus. Whenever? the cage is caused to move in the other, direction, the energizing of some other circuit through the contact of another of the arms 37 will cause the correspondingreversal of -direction of movement of the'disk'46, and asgi starts the arm, which, as shown at 35,' isin ,a"radial position, will be turned'about its pivou'over f t l. 99 47 and upon the lll'Il atter how many contacts are mad e rims' 33, theaction will only take p e hrdugh the particular arm 37, &c., throu :iclrthe ":1. current is directed by the settin the'apparatus in the first instance for 'oori switch. R

The operation of the elevatqr lwillgbeas follows: Assuming that the cage is at the bottom and is to be sent to th third floor, the corresponding. lever or but on is turned which connects the plate 17 with wire 41", the latter leading to contact iplate 33' on floor-switch, and through,wtacti springs 39 40 to contact marked 33, hiyougdwire 42", through solenoid U, (causing tlie latter to close at the direction -switch 26 up,) from there through wire 56 to de nt'E,'causing the arm 18 to be attracted a (1 held up during the travel, from detent through wire 57 no to the brake 25, releasing e same,thencethrough wire 58 to service-s itch S, through wire a and 59 back to plate 17, which completes the circuit. By the closing of the di-- rection-switch U the motor-current is established, as previously described and shown in the diagrammatic View Fig. 7. The motor-. wire a is connected with acut-ofi at 60, Fig. 2. This cut-off consists of a segment G, Fig. 9, having a contact-plate g, which connects the two ends of wire a, thus keeping the circuit always closed. This segment is hung from the pin g upon a support 61, Fig.8, which also carries the binding-posts 62 of the wire a Projecting from the top of the seg- 1:5 ment is a short arm 9 which is tocome in contact with either of the-pins 63 upon the side of the disk 46. This takes places when either of the arms 34, 35, or 36'should fail to break contact and cause the disk to travel still farther until a pin 63, striking thearm 9 would tilt the segment and break the circnit in the wire a. This breaks the motorcircuit, and consequently stops the travel of the'cege.

In the diagrammatic viewdlig. 10 I have illustrated theworking of the floor-switch more clearly. The cage is supposed to be at floor 3, and it is desired to send it to the first floor. As previously shoWn,'the connection at 33" has been broken by the arrival of the race and has left the springs of 35 to connect 3 with down strip and also 33'-with the down strip. The first-floor ontton or lever being turned, this establishes the circuit from the detent 3.. to 33', to Down, to solenoid i), by wire e2, operating" the motori'or down movement, and thence to detent it, as previonslydeecribeil. The disk 46 c01nmono-es to move now in the direction of the arrow, connecting 33 and up strip again. ()n reaching 33-" the Contact is broken; but there being no current here (as only is connected.) the disk will 'still travel on ing arm 35, so as to connect 33 with up strip, thus getting some ready for the up trip, until reaching 33, when the arm 36 will be straight cued, current broken, and the cage will stop at its destination.

In 11 is illustrated more clearly the manner in which the cage is always brought to the floor-line. Suppose the disk 46 is traweling in the line of the arrow, taking disk 48 along by its log 50, and an arm 37 is already traveling on the disk 4-8. Now as soon as the edge of the notch 47 presents itself to the roller the roller will quickly take hold of it and by the impulse of its spring 52 pull it t-- ward itself to line 1' q, where the arm will then be in a. rod lei line and the contact broken, this line being the floorline. As before "stated, the loose mounting of disk 48 and the play of lug 50 in notch 49 allow this independent movement. It can be seen from this illustration that the roller travels a little beyond the line r'q, thus keeping the contact closed a little. longer and allowing the disk 46 and with it the cage to travel on untii they come to the fioordine close as possible. The plates 4011 thedoors have notches inside in them, and the pert above the notch projects-fnrther than the part below, so that when the door is drawn down and closed this extension will engage th'oend of the lever and insure its movement and action upon the slide 6. lhe doors are of the type of vertically-sliding doors, and when the door is mised either to put in or take out a. load the lever 5 is pushed out of the notch 4 and the slide (3 takes the position shown in dotted lines, Fig. Ii illilfi is, being out of line with oothe segmcnisfll), which now prevent any turning of the handles while the door is open. Then when the door is closed any lever can be operated, as the segments coincide again with segments 10. When the door is down or closed, the lever 5 rests in the notch 4 of the door and the slide is in the position as shownin full lines in Fig-3-tha't is, coindetermine the direction and distenceof movevroent of the cage.

ciding, with the segments thns allowing the handles 9 to be operated. When the door is closed, then the slide is in its normal position, and when the motor is at rest the spring will pull back the respective lever S-to its normal position again, but will not affect the slide 6, as the letter is only operated bytheimovement of the door. Vihile the doorrem'ziins open no lover 9 can be moved, and when the door has been closed and one of the. levers 51 has been turned to loci; the slide'the movement oi. the levernrni lS-iby the wire 12, connecting it with the it?! 8, moves the slide 22 and prevents the movement; of any other lever 9 and its connections. The eifect of: turning the segment lO is to lock the doors, so that they cannot be opened while the cage is in motion. The errangeinent of the con- 8 tact-plates c c ankle. number of pins through which the circuits are completed allows the -field and "armature circnitgjovbe broken at such a number oi points simultaneously as to reduce the spark produced by the break, so that it is not objectionebly noticeable.

Having time described my invention, What I claim as new, and desire to secure by Letters Patent, isg I 1. The combination in an elevator of's'ta tions or floors; conga-suspended end moveble between said floors; 2. motor and mechanism by which the cage is operated; independent-lyopereted mechanism including controllingswitches, circuit-closing devices for each-floor and connected together in sets and detents for the circuit-closing devices; and electric circuits and mechanism energized thereby to 2. he combination in an elevator of stations or fioors,n cage suspended and movable between said floors, a motor and mechanism by which said cage is raised and lowered, and mechanisms comprising; direction and floor 11o switches, manually-operated circuit-closing devices and detents therefor, said circuit closers for each floor being connected together in sets so that the mechanism for either floor-J. may be operated from any of the floors, and electric circuits and mechanism energized thereby to'determine the direction and dis tence of movement of the cage.

The combination in an elevator of ate a? tions or floors, e cage suspended and movable between said floors, emotor. and. mechanism by which said cage is raised and lowered, levers connected in sets to be operated in unison from either floor, independent eiectrica contacts catch adapted to be closed or opened by the operation of one of seid sets of levers, circuits controlledv thereby and mechanism operated by the closing and opening of said circuits whereby the direction of movement of the cage is determined and efiectcd.

4. The combination in an elevator of eta,- tions or floors, a cage suspended end'mov able between said floors, a. motor and mechanism by whichsaid cage is raised and lowered, l'evers connected in sets to be operated in unison from either floor, independent electrical contacts each adapted to be closed or openedby the operation of one of said series of le vers, and .an electromagnet energized by the closing of said circuit, an armature and lever actuated by said electromagnet whereby the first-named circuit remains closed until the electromagnet is denergized.

5. An elevator-cage, a motor and mechanism by which said cage is raised or lowered,

levers connected in sets, one of which is located ateach flooror station and capable of being operated in unison from either floor, independent electrical circuits each adapted to be closed or opened by. the operation of one of said series of levers, an electromagnet and sets of one for each floor, electrical circuit-' closing devices operated in unison with the movement of either series of levers, and locking devices operated by the movement of either of the series of levers whereby the movement of one series of levers, prevents the operation of all the other series.

7. An elevator-cage, a motor and mechanism by which the cage is moved up or down, a series of slides corresponding with the number of floors and having segmental grooves inthe edges, fulcru med levers connecting with the slides and operated by the opening and closing of the doors, levers connected in setsfor each floor and electrical circuits, each opened or closed by the operation of one of said seriesof levers, segments turnable in unison with the levers and adapted'to engage the grooves and the slides whereby the movement of one lever locks and prevents movement of all the doors.

8. An elevator-cage, a motor and mechanism by which the cage is moved up or down, elect-ricalcircuits and mechanism including sets of levers located at each floor and con nected together by which either circuit is closable from any of a number of floors or stations, a direction-switch actuated by the closing of such circuits whereby the movement of the cage up or down is determined.

9. An elevator-cage, a motor, a mechanism by which it is moved up or down, electrical circuits and mechanism including sets of levers located at each floor and connected together by which either circuit is closable from any of a number of floors or stations, a direction-switch actuated by the closing of such circuits whereby the movement of the cage up or down is determined, said switch consisting of insulated pins, and wires connecting said pins, so that electrical currents may: be transmitted to the motor in reverse directions, contact-plates and a solenoid bywhich said plates are moved into contact with the pins when the solenoid is energized 10. An elevator-cage, a motor, mechanism, by which it is" moved up or.dowu,'jsets of"levers at each floor connected together insets .7 5' so that either set can be operated from any floor, a direction-switch consisting of pins, connecting-wires therefor whereby currents in reverse directions maybe transmitted toa motor, solenoids with movable cores, ful- 8o crumed lever-arms connected with and movable by said cores when the solenoids are energized, and insdu lated contact-plates carried by the levers an capable of connecting either set of pins'to give direction to the motor and the cage. 1

11. An elevator-cage, a motor, mechanism by'which the cage is raised or lowered, levers connected in sets, either set of which maybe operated from any floor, electrical circuits-9o controlled by the movements'ot said levers,

a direction-switch and an electrical circuit whereby the direction of motion of the cage' is determined and a floor-switch and elec= trical controlling-circuit whereby the floor at" which the cage should stop is determined.

12. An elevator-cage, a motor or mechanism bywhich it is raised or lowered, levers connected in sets, either set capable of being operated from either floor, independent elec- 10c trical circuits, either of which is closed by the operation of one of the sets of levers, a floor-.-- switch and electrical circuits controlled by the levers whereby the operation of any-set of levers belonging to a floor setsthe fioor- 1.05 switch to stop the cage at the desired floor-or station.

13. The combination with a.- vertically-movable elevator of lovers connected insets and operated from either floor or station, independent electrical circuits closed by the operation of either set of levers, amotor and direction-switch actuated by the closing of said circuit to determine the direction of motion of the elevator, a floor-switch consisting of circular metallic insulated rings, fulcrumed levers carrying corresponding contacts, a disk revoluble in unison with the movements of the motor and elevator-cage, said disk having a not-chin its periphery into which the contact- 1 20 carrying lever drops, and breaks the electrical circuit when the cage has arrived at the desired floor.

14. A floor or station switch for verticallymovable elevator-cages consisting of station- I2 5 ary, insulated metallic rings, spring-pressed lever-arms fulcrumed at'intervals and corresponding in number with the floors or stations,

a disk mounted upon a shaft concentric with the rings, and intermediate mechanism where- 13 by it is turnablein unison with the movements of the motor and cage and in either direction, said disk being mounted in line with the inner ends of the lever-arms which travel upon the periphery of the disk, contacts carried by the F outer ends of said arms and caused to 'press motor and mechanism bywhich said cage is moved in either direction, a switch by which upon the peripheries of the rings, conducti ugwires connecting the said rings-to which elec-. trical circuits are completed by said contact, a notch formed inthe periphery of the revoluble disk int'o which the inner end of either arm drops to break the contact between its outer end and the rings when the notch arrives in line'with said arm and the cage at the 4 Corresponding door or station. I

15. A vertically-movable elevator-cage, a

the floor or station at which the cage i's'to stop 1s determined, said switch consisting of stationarylnsulated conducting-rings, each hav-' ing one wire of an electrical circuit connected therewith, lever-arms corrcs pending with the number of stations fulcrumcd with relation to said rings having contact-pieces upon the outer ends,-a revolnlole disk mounted upon the shaft concentric with the rings and turnable in' unison with the movements oi the m0- tor a'ndcage, rollers upon. the inner ends of ,the lever-arms adaptedto rest upon the periphery of the disk whereby the contacts at the outer ends are pressed against the rings to complete the circuits,controlling devices at each floor or station-whereby an electrical cir-' cuitis completed through the arm corresponding with the station at which the'cage is to stop, a notch formed in the periphery of the movable disk, a spring acting upon the lever whereby the inner end of the lever drops into the notch when the latter arrives in line with the lever whereby the contact between the outer end of the leve-rand the rings is broken and the cage-actuated mechanism is stopped. 40 switch of an elevator--oage, of stationary in- 16. The combination in a floor or station 'sulated conducting-rings having the two'wires of an electrical motor-actuating circuit connected therewith, lever-arms fulcrumed at intervals with relation to the rings corresponding'with the stations, and carrying upon the outer ends contact-pieces, a disk, a shaft upon i which it is mounted concentric with the rings and revolnble in unison with the movement of the motor and cage, rollers upon the inner ends of the lever-arms resting upon the periphery of said diskwhereby the contacts of the outer ends are maintained, a notch in the periphery of said disk which passes beneath the inner endsof the arms, a supplemental r disk contiguous to the movable one having a notch made in its periphery, and a lug entering the'notch of the movable disk" having a less diameter than that of the first notch whereby the inner ends of the arms drop into.

"movements of the cage. I

trically-actuated mechanism including con-- trolling-switches and circuit-closing devices, i

said' devices being arranged 'in sets ateach 7o door by which the direction of movement of:

1 he'cage is determined, and a detent by which, said mechanism is maintained in operation, until the cage has reached its destination.

18. .An elevator-cage, a motorand mechanism bywhich the cage is movable, an electrically-actuated mechanism including controlling-switchessmd circuit-closing devices, said devices being arranged in sets at each floor by which the directionoi movement of the cage is determined,an electrically-corn 'ated detect by which saidnrechanism is maintained in operation, and a chcuit closing and opening device actuated in unison with the 19. An elevator-cage, a motor and mecham ism by which. the cage is movable, an electrically-actuated mechanism including con- 1 "trolling-switches and circuit-closing devices, 3

said devices being arranged in sets at each floor ,by whiclrthe direction of movement is determined, a second mechanism with .con-

nections by which it is driven in unison with" the movements of the cage,andfan electric i motoractuat'ingcircuitoontrollcd by saidsec- 0nd mechanism to determine the distance to which the cage moves,

20. An elevator-cage, a motor and mcchan ism intermediate of the motor and theica'ge, a series of independent electricalci'rcuits and rot con mooted-mechanism including sets of lovers located'at each fioor and connected'together. whereby the direction and destination of the cage are'determined,an electrical motor-driv- 'ing circuit, and means for closing said circuit r o; to start the cage in its predetermined direction, in combination with a mechanism and connections by which .itis driven in unison with the motor-and cage, said mechanism acting to automatically open the motor-circuit when the cage has reachedits destination.

21. The combination with an elevator-cage and an electrically-driven mot-or therefor, of

a rotary notched disk driven in unison with the motor and cage, lever-arms by whichthe electrical circuit of the motor is kept closed by the arms resting upon the rim of the disk, and springs by which any armarriving at the notch in the disk is moved to break the contact controlled by it, and openthe corresponding motor-circuit, i

22. The combination with an electricallydriven elevator-motor of a disk turnable in unison with the motor, spring-pressed leversl resting upon the periphery of the disk while closing the motor-circuit, a notch in the disk into which the'levers fall when passing whereby the circuit is opened and the motor stopped.

23. The combination with an electricallydriven elevator-motor, of a disk turnable in unison with the motor, spring-pressed lever.-

.arms, each controllingan electrical circuit through the motor, electrical contacts whlch l sed when the levers rest-upon the pa-- riphery of the disk, a notch in said disk into wh ihh the levers drop upon reaching it,'to open their electrical circuits, and a concen-f tric loosely-turnable and correspondingly;

:gf'notched disk of'slightly smaller diameter,

having a lugs, to engage the main disk-, and

limit the independent movement of tiidse c-d 1 resting upon the first disk, and the other acting to .close a motor-circuit, and a notch in the loose disk into which the lever-arms are forced by. their springs to open their controlled circuits and by which a sudden independent movement of the second disk is ef fected. f 25. The combination in an electric-motor circuit-breaking device, of a disk revoluble in unison with the motor and having a radial notch in its periphery, a second concentrically-mounted, loose disk of smaller diameter having a narrower notch in its periphery end a lug projecting into the notch of the first disk and allowing a small independent move-' ment, contacts through which the motor-circuit passes, spring-pressed fulcrumed levers beneath one end of which the disks revolve, to cause the opposite ends'to close the motorcircuits, each lever falling into the notches of the disks when they register and opening its circuit.

26. The combination in an electric-motor circuit-breaking device of concentrically-revoluble notched disks, and spring-pressed fulcrumed levers with one end resting upon the periphery of the disks so as to fall into the notches when they register, electrical motorcircuits and means carried by the outer ends of thelevers to close said circuits while the levers rest uponthe disks, and to "open the circuits when the levers fall into the notches, and an independent circuit-closing plate,,and pins carried by the disk and acting to move the plate and open the circuit if the levers fail to act.

27. The combination with an elevator and an electrically-driven motor therefor, of elec. tricalcircuits and mechanism including coutrolling-switches and circuit-closing devices, said devices being arranged in sets at each floor by which the direction of movement of the cage is controlled, a motor-circuit and means by which i t is closed to energize the motor. in unison with the directing device, 7 and'a 1 nechanisrn driven-in unison with the 'motor' and actingto automatically open the I motor-circuit and stop the elevator-cage at any station.

28. The combination with an ele vator and an electrically-driven motortherefor, of-electrical circuits and mechanism including controlling-switches and circuit-closing devices,

said devices being arranged. insets at each fioor by which the direction of movement of the cage is controlled, means including a disk and lever-arms contacting with the same by which the motor-circuit,isclosed, in unison 7'5 with the direction device a mechanism by which the motor circuit is automatically opened when the cage reaches the desired eta 2 tion, electricai circuits bywhich' the; previonsly-descrihedcircuits are closed, and means connecting each floor or station with the lhstnamed circuits whereby either one maybe closed and the cage set in motion and its 'direction and its terminal stationfixed.

29. The combination-wither: elevator-cage; 35

an electric motor, andintermediate mecham ism, and electrical circuits closable to energize the motor, of a dir'ectiowswitchconsist ing of double set ofcontact-plates carried by a single arm,fand pins soyconuerited thereby go as to produce a double break of fieldmil'cuit and quadruple breaks of the armature-circuit.

30. The combination with an elevator-cage and motor, and floors or stationsbetween which the cage ismovable, ot mechanism by which the motor circuit isenergized and controlling devices at eachfl'oor, slidesmovable to lock or unlock said devices, levers having I one end connected with a slide, and a notched I00 plate fixed to and movable with the slidatble door, and engaging the opposite end of alever, whereby the slides are moved in unison with the movements of the doors,

31.. The combination with an electrically-L operated elevator, devices located at each floor whereby the controlling-circuits are-energi'zed, locking-slides and fulcrumed levers connected therewith, of 'slidable doors with notched plates fixed thereto and engaging the no levers, said plates having the upper part projecting over the notches to insure the engagement of the levers duringthe closing movementof the doors.

In witness whereof I have hereunto set my 1 r5 hand;

MIL ON A. CLENNAM.

Witnesses;

S. I1. No RsE,

JESSIE 0. BRODIE.

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