US759703A - Safety-lock for elevator-shafts. - Google Patents

Description

No.. 759,703. PATENTED MAY 10, 1904. H. F. GURNEY & B. E. WESTLIN. SAFETY LOCK FOR ELEVATOR SHAFTS.

APPLICATION FILED JUNE 25, 1903.

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No. 759,703. PATENTED-MAY 10, 1904.

H. F. GURNBY & B. E. WESTLIN.

SAFETY LOOK FOR ELEVATOR SHAFTS.

APPLICATION FILED Jmu: 25,1903.

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THE mums Farms 00, r-umo-umu. wnsuwumma c .No. 759,703. PATENTED MAY 10, 1904. H. F. GURNEY & B. E. WESTLIN.

SAFETY LOOK FOR ELEVATOR SHAPTS.

APPLICATION FILED JUNE 25, 1903.

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H. I. GURNBY & B. E. WESTLIN. SAFETY LOOK FOR ELEVATOR SHAFTS.

APPLIUATION FILED JUNE 26, 1903. I

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UNITED STATES Patented May 10, 1904.

PATENT OFFICE.

l VESTLl N, OF

SAFETY-LOCK FOR ELEVATOR-SHAFTS.

SPECIFICATION forming part of Letters Patent No. 759,703, dated May 10, 1904:.

Application filed June 25, 1908. Serial No. 162,984. (No model.)

To all whom it may concern:

Be it known that we, HOWARD F. Gunner, of Jersey City, and BROR IE. iVns'rLIN, of Arlington, New Jersey, have invented a certain new and useful improvement in Safety- .Locks for Elevator-Shafts, of which the following is a specification.

The present invention pertains to those mechanisms or devices designed more particularly for preventing access through a door (or other barrier) to the shaft or well of an elevator or lift during such times as the elevator-car is not at the landing to which or from which the door leads. Such mechanisms or devices by their operation generally insure theinopcrativeness of the locking mechanism of the door by a person on the exterior, and

in the particular class of devices to which the present invention more especially relates this operation is automatic in so far as the release of such locking mechanism to permit the same to be operated and the blocking of the same against operation is under the direct control of the moving car-that is to say, assuming the moving car to be close in its approach to a floor at which a stop is contemplated,mechanism is thereby brought into action which operates to release the holding catch, bolt, &c., of the locking mechanism, and thereby permit the same to be withdrawn from its holding position by either a person without or within the car, and, conversely, the car in leavingthe landing reactuates the movement-controlled device or devices to again render the locking mechanism inoperative until the car shall again stop at that point.

()ne of the most important objects attained by the present invention is theprovision of d oor-restraining means in which the employment of spring tension for actuating the checking catch, bolt, &c., is eliminated. 1n eii'ecting the actuation as aforesaid we utilize a direct and positive stress to accomplish the necessary movement both in one direction and in the other.

Asafety locking mechanism embodying our present improvement is clearly distinguished, therefore, from those constructions in which one or more springs, gravity, or the like are depended upon to throw forward or to return the parts, since as contrasted with these latter devices in the present mechanism the action is certain, definite, and positive in both directions and unaffected by the shrinking or swelling of the mountings, changes in the resistance to movement of the parts, as by rust accumulation or wear, insuiiicient spring tension, &c.

- These features and the various others comprised in the present invention are disclosed in the drawings accompanying the present specification, in which 7 Figure 1 is a perspective view indicating the general layout and organization of a safety locking mechanism embracing our present in'iprovements. Fig. 2 is a side elevation of the two-part actuator mounted on the car and which serves to shift through cooperative mechanism the locking detent or dog fromits active to its inactive position,the fixed and shiftable members comprised in the actuator being illustrated in the position in which they are most widely separated from each other and the parts being drawn on a somewhat larger scale than in Fig. 1. Fig. 3 is a plan view of the parts as indicated in Fig. 2. Fig. 4 is a view from the left of Fig. 2. Fig. bis a view similar to Fig. 2, but illustrates the members in their position of relatively nearest approach. The 'iurpose of this change in relation will be fully set forth later. Fig. 6 is a section on the plane of the line 6 6 in Fig. 5. Fig. 7 is an elevation illustrating a pivoted lever constituting an actuatable member cooperative withsaid actuator on the car, this view also illustrating a supplemental or circuit-controllinglock as well as the usual ;knob of a door and the transmitting devices vinterposed between sa1d-p1v0tcd lever and the locking detent or dog of the latch of the circuit-controllinglock and between this latch and the spindle of the knob. Fig. 8 is a view looking from the right in Fig. 7, part, how ever, being-in transverse vertical section. Fig. 9 is a perspective View of tlie latch portion of the circuit-controlling or switch lock, the supporting-frame of which is secured to the door. Fig. 10 is a perspective view of such frame. Fig. 11 is a cross-sectional view illustrating the keepers and the frame from which they extend, this frame, that of the circuitcontrolling latch, and the latter being illustrated in the circuit-closing position of the parts. Fig. 12 is a perspective view illustrating this keeper-frame, and the view also indicates the spring-contacts, the circuit between which is completed by the said latch. Fig. 13 is a rear view of the keeper-frame comprised in the circuit-controlling door-lock. Fig. 14 shows one of the contact-springs.

Similar characters of reference designate corresponding parts in all figures.

The present invention embraces as one of its principal features an actuatable or shiftable member in positive mechanical connection with the part or device directly concerned in holding the door against an opening movement. In the illustrated embodiment of the invention this part or device is effective to hold the bolt or catch of the door-lock against an unlocking movement by any person during such times as the door should remain closed. This said member, according as it is at one extreme or the other of its shifting movement, serves to control the positioning.

of said part or device (conveniently in the form of a locking dog or detent) that is to lock the door catch, latch, bolt, &c., against movement or render it free to be moved while the latter is in its engaged position and is shifted from one such position to the other and back again through the impingement thereagainst of an actuator carried by the car. This actuator, moreover, is so related to the shiftable member as that in moving in either direction from a floor at which a stop has been made the member is bound to take that posi-' tion corresponding to the active or locking position of the detent, and, in fact, this tendency of the moving car to so actuate the detent is constantly maintained, excepting on the close approach of the car to the floor at which it is to be stopped, as will presently be explained. The locked condition of an engaged doorcatch is therefore positivelyassured each time erably means, such as a roll5, (whose periphery may be of rubber, leather, or the like, 6,) is mounted on the lever for contacting with the actuator on the car, (presently to be described,) while a limit-stop may be combined with the lever, this stop consistingin the present instance of a pin 7, cooperative with the end walls of aslot Sin the lever. Interposed in the specific push-and-pull train of mechanism adopted in the present instance for connecting the lever 2 with the locking-detent is a counterbalance-lever 8, fulcrumed by a pin 9 to the base 4 and which may be connected by a pin-and-slot connection 10 with the lever 2. One arm of this lever 8 carries a counterbalance 11 (adjustable or rigid, as desired) for compensating the weight of the connecting-train aforesaid and equalizing, as near as may be, the work to be performed by the actuator in shifting the parts in reverse directions. This counterweight may, if desired, be so positioned as to exert a somewhat overbalancing effect to retain the detent, heroinafter referred to, in its locking position.

The present invention has been adapted (and is so illustrated in the drawings) to an elevator using electricity as the driving agent and to that specific form of electrically-operated elcvator service usually denominated as automatic. As well known to those skilled in the art, various devices recognized as so-called safety devices are used in such systems to secure the safe and satisfactory operation of the liftwithout the employment of a constant attendant. Among these safety devices are usually included What are known as doorswitches, (ordinarily one at each floor,) which maintain an open condition of the power-circuit as long as any door remains open.

WVe have chosen to adopt as one of the features of the particular embodiment of the present invention illustrated in the drawings a combined door switch and lock with the locking mechanism of which the aforesaid locking-detent is in cooperative relation, as will presently appear. It is to be understood, of

course, that the functioning of such device as a switch is separate and distinct from the fulfilment of its purpose as a lock, and, in fact, separate and distinct devices might be used to accomplish the results attained with the illustrated form of switch-lock. Proceeding, however, to its description, as illustrated, 12 indicates a mounting or frame for the springcontacts 13 13 of the switch. This frame is secured to the door jambor casing (or outer fixed part) in position to have the other member of the switch properly cooperate with the contacts on the closing of the door-that is, generally contiguous to the outer upper edge of the door. These contacts 13 13 are here in the form of springs secured to respective insulating-blocks 14:14, let into openings in the frame and secured by a clamping-plate 15, lying on a piece 16 of insulating material. A cover-plate 17 closes the rear side of the frame, and the leading in and out wires 18 19 pass downward through thimbles or escutcheons 20, where they are secured to the contacts.

The forward ends of the contact-springs project outwardly through openings in the insulator-blocks beyond the front face of the frame in position to be firmly pressed against by the circuit-closing member of the switch. This latter member (designated by 21) is mounted on the door, being here supported on a mounting or frame 22 and having exposed metallic conducting portions 23 24: (electrically connected by a cross-piece 25) for joining one contact 13 with the other when the door is closed and properly latched. The conducting portions are insulated from the metallic portions of the member by insulating material 26, while similar material 27, preferably flush with the contact-faces of the said conducting portions, is interposed between them. member 21 not only serves the purpose of electrically connecting the contacts, but also functions as a door-holding latch, being here pivoted, as by a pin 28, to the frame 22 and also having a projection 29,working in an undercut portion 30, rigid with the frame, for preventing the latch from being pulled outward laterally of its plane of oscillation. The keeper with which this circuit-closing latch engages is mounted on the aforesaid fixed switch-frame 12. In the present instance the switch-lock is suited for use with either swinging or sliding doors, 31 designating the latchkeeper when the application is to swinging door,( which keeper may then enter under the latch between it and its frame,) and 32 32 keepers adapted for use with sliding doors, one keeper, 32, being the active keeper for a door sliding to in one direction and the other for an oppositely-closing door. It will be noted that the switch-closing latch is provided with oppositely-extending offsets 33 33, the outer edge of each of which connects with the body of the latch by an inclined face34. Upon sliding the door to in a direction such that the latch slides over one of the keepers 32 from the pivoted end toward the free end of the latch the then bottom offset will ride up over the keeper and the latch ultimately drop behind the keeper. By reversing the position of latch an oppositely-closing door is caught by the other keeper in a similar manner. Of course the striking and relatively sliding surfaces of the lock mechanism will be usually chamfercd, as readily understood. It is here to be noted also that the exposed conducting portions on the latch are of such size and so related to the spring-contacts that the circuit will not be closed until after the latch has ongaged with its keeper.

The door-locking mechanism, which is blocked or held against operation directly from the aforesaid actuatable member in the elevator-shaft, is in this instance, as already referrcd to, that of the described switch-lock, and for the convenient and practical attainment of such result we have here used a lockingdetent or dog, such as 35, mounted in the switch frame 12 and shiftable from a position in This which it blocks or prevents the pivotal move ment of the engaged latch that is, its disengagement from any one of its keepers to a position in which the latch is free to be disengaged. (See the full and dotted positions of the detent, Fig. 7.) Thisdetent is connected with the aforesaid actuatable member by suitable means, one form of which is illustrated and comprises a rock-shaft 36, to which the dog is secured and to which an arm 37 is also aflixed, the position of the latter being preferably capable of ad justn'lent to secure a proper alinement of parts. A link connection 38 is here used to join the arm 37 to thepreviousl ymentioned lever 8, and this connection for a similar purpose to that described with reference to the arm 37 is susceptible of an increase or decrease in the length between the points of its pivotal attachment to the arm and lever. In this instance the link is a two-part one, the non-pivoted end of each part being connected by a pin-andslot connection 39 to the other part. It should also be stated that the sizes, leverages, and proportion of parts are such as to cause the detent to move from its locking to its unlockingposition, and vice versa, during the shifting movement of the actuatable member from one predetermined position to the other and back again.

The release of the unlockedthat is, dogreleasedlateh from its detaining keeper is conveniently. effected by the person seeking to gain access through the door by turning the usual door-knob, and to permit this mode of opening the door the spindle 10 of such knob (see 41) may be provided with an arm 42, which arm is here connected by a link 43 (preferably adjustable, see the threaded connection 1a) to a pin 4:5, extending from the latch. By turning the knob the latch may thus be raised and the door opened. Upon shutting the door and releasing the knob the latch reengages with its keeper, its engaged position being here limited by a stop-pin 46, (which may he covered with a sound-deadening material H,) against which strikes a laterally-extending linger 48 of the link. The spindle may of course additionally serve to operate the usual catch or bolt of a door-loek, if desired.

It is evident, therefore, from the foregoing description that there is provided by the present invention a mechanism for rendering the lock, catch, &c., of a doorinoperable, or, in other words, incapable of being withdrawn from its engaging position and for obtaining an opposite condition, both of which conditions are secured by the application of forces from without, first in one direction, then in the opposite, transn'iitted through non-yielding connections that is, without the use of springs. It now remains to describe means for shiftingthe actuatable member in opposite directions whereby these results are secured.

An actuator is brought into cooperative relation with the actuatable member during the car movement, and one of such members has elongated working faces inclined to the direction of the car movement, one of such mem-- bers being also mounted in the shaft and the other on the car. i In the particular organization illustrated it is the actuator which is provided with the inclined working faces. In a general way this actuator may be described as a two-part actuator in that it comprises a part fixed relatively to the car and operating to throw the actuatable member should it encounter the latter to that position corresponding to the locking position of the detent and a part movable from a position in which it does not engage the actuatable member into a position in which it will so engage the member, (when the latch is locked by the detent,) and thereupon swing the detent and release the latch. The fixed part 49 of the illustrated actuator (designated as a whole by 90) comprises two pairs of oppositely-inclined working faces 50 and 51, which pairs of faces are connected by a guide-rail portion 52 in line with the car movement. This fixed part of the actuator is so located on the car (on the top beams 53 thereof for illustration) that the striking-roll on the actuatable member when lying away from the guide-rail, but adjacent thereto, will have taken its limiting position to one side corresponding to the locking position of the detent. It is against this guiderail, between the oppositely inclined working faces 50 50, that the roll rests when the car is stationary at a landing, with the locking-detentin its unlocked position, while the working faces are of sufficient depth, measured transversely to the guide-rail, to cause the shifting of the rollthat is, the actuatable member when the car moves either up or down from the landing to a position corresponding to the locking position of the detent. The roll is then free from engagement with the fixed part of the actuator. Connecting with each working face 50 is a corresponding working face 51, which two faces 51 51 are adapted, one while the car is traveling in one direction and the other while it is traveling in the opposite direction, to shift the roll should the detent be in its unlocking position and return the detent to its locking position. This fixed actuator 90 overhangs from a standard, such as 54, to cooperate with the several actuatable members at the different landings as the car passes by them.

The means for shifting the actuatable member from the position corresponding to the locking position of the detent to its opposite or latch-unlocking position is in the nature of a shiftable actuator, which as the car approaches the landing at which a stop is to be made is shifted from a position in which it does not engage with the rollthat is to say, when the roll is in a position corresponding to the locking position of the detentto a po shock of the impinging-roll.

sition in which it so engages and forces the roll over and carries the detent away from the latch. This shiftable member of the two-part actuator may be mounted upon the same standard 54 as the fixed part of such actuator, and the form of such shiftable part and the relation thereof to the other parts as here organized is indicated in Figs. 2 to 6, inclusive, in which the shiftable part is designated by 55. As there illustrated, 56 56 designate opposite inclined working faces at the ends of a guiderail portion 57. These inclined working faces when the shiftable actuator is nearest the fixed actuator (see Fig. 5) are adapted to impinge against the roll of the actuatable member as the car approaches from either direction. The roll is thereby forced toward the guide-rail of the fixed actuator until as the car comes to rest the roll takes up a position between the guide-rails of the two actuators. Upon again resuming its motion in either direction the roll is shifted back and the latch relocked, as readily understood. When, however, the shiftable actuator is withdrawn from the fixed actuator, (see Fig. 2,) the roll may then traverse the space between them free from actuation by either. As a mounting for the shiftable actuator to permit of its movement as aforesaid, the means shown may be adopted, consisting of arms 58 58, to which the actuator is pivoted and which are secured to shafts 59 and 60, respectively, journaled in hearings in the standard 54, these arms being compelled to move in unison by a connectinglink 61. Counterbalancing'\veights 62 62 at the ends of arms 68 63, extending from said shafts, have been found sufficient to maintain the actuatable member in position against the The inclination of all inclined working faces will of course be sufiicient to effect a proper coaction. the continued up-and-down motion of the car the shiftable actuator is in the position indi-v cated in Fig. 2, and it is only as the speed of the car slackens in making a stop that the same takes the position indicated in Fig. 5.

Various means may be employed to draw back the shiftable actuator against the force of the counterbalarming-weights aforesaid and so maintain it during the times that the car has a uniform or accelerating speed. Such means in an electrically-driven system may conveniently consist of a solenoid, such as 64, here mounted on a cross-shelf 65 of the standard 54 and having a longitudinally-movable core 66, pivotally connected to an arm 67, extending from the shaft 60. The ends of the solenoid-coil are connected to the working circuit, the terminals of such coil being represented as formed by binding-posts 68 68 on an insulating-block 69 on the standard. As long as the working circuit remains energized the solenoid will hold the shiftable core elevated and the parts in the position indicated in Fig. 2. ()n the shuttingofi of the power, however, the

During with said shiftable part for causing a positive movement ofone in response'to a movement of the other, and an actuator operative to actuate the actuatable member by the movement of the car.

' 2. The combination with door-restraining means embodying ashiftable part, of an actuatable member connected with said shiftable part for causing a definite and positive locking movement of said shiftable part in response to a corresponding movement of said actuatable member, and an actuator mounted'on the car for actuating the actuatable memberby the movement of the car.

8; The combination with door-restraining means embodying a shiftable part, of an actuatable member connected with said shiftable part for causing definite and positive movements of one in opposite directions in response to corresponding movements of the other, and an actuator mounted on the car for actuating the actuatable member by the movement of the car.

4:. The combination with a locking-detent, of an actuator moving with an elevator-car, and means cooperative with said actuator for thereby positively forcingthe detent to its locking position, and as the car approaches a floor for stopping thereat, to its unlocking position.

5. The combination with a locking-detent, of an actuator moving with an elevator-car, an actuatable member cooperative with the actuator, and a push-and-pull transmitting-train between the detent and the actuatable member.

s. The combination with a locking-detent, of an actuatable member associated therewith, and a two-part actuator moving with an elevator-car and cooperative with said actuatable member, one part for shifting the detent to its locking position and the other for withdrawing it therefrom.

'7. The combination with a locking-detent, of an actuatable member, a push-and-pull transmitting-train between the detent and the actuatable member, and a two-part actuator moving with an elevator-car and cooperative with said actuatable member, one part for shifting the detent to its locking position and the other for withdrawing it therefrom.

8. The combination with a locking-detent, of an actuatable member, a tw0-part actuator moving with an elevator-car and cooperative with said actuatable member, one part for shifting the detent to its locking position and the other for withdrawing it therefrom, and

means for automatically shifting this latter actuator part into and out of coi'iperative relation with said actuatable part.

9. The combination with door-restraining means embodying a shiftable part, of an actuatable member operatively connected with said part, and an actuator normally outof cooperative relation with said itCiiUflllEtblQfllGlnher and automatically shiftable into such relation for moving said. shiftable part to a position such that the door may be opened.

10. The combination with door-restraining means embodying a shiltable part of an actuatable member operativel y connected with said part, and a two-part actuatorcooperative with said actuatable member, one part for assuring the positioning of said shiftable part in its locking position and the other part being shiftable into and out of cooperative relation with the actuatable member.

11. In a safety device of the class specified, the combination with an actuatable member having a push-and-pull tranemitting-train and whose position determines the operative and inoperative condition of a door-holding device, of a two-part actuator cor'iperative with said member, one part being movable into and out of cooperative relation with the actuatable member and having oppositely-inc'lin ed worl ing faces at its ends, and the other part being fixed.

12. The combination in aiielevator system of an actliiatable member, an actuator shiftable into and outof cooperative relation with the actuatablemember, and means for so shifting said actuator in opposite directions according as the drivingpower is turned on or shut ofi. v

13. The combination with adetent, of an actuatable member, operatively connected therewith, an actuator mounted on the'elevatorcarand shiftable into and out of cor'iperative relation with the actuatable member, and

means for so shifting said actuator in opposite directions according as the driving power is of a two-part actuator, one part being normally held out of cooperative relation with said actuatable member and shiftable into such relation for establishing an operative condition of the door-holding device, and the other part being fixed on the car for insuring an inoperative condition of the holding device.

16. In asafety device of the class specified, the combination with an actuatable member whose position determines the operative and inoperative condition of a door-holding device, of a shiftable actuator, and electromagnetic means for shifting the actuator.

17. In a safety device of the class specified, the combination with an actuatable member whose position determines the operative and inoperative condition of a door-holding device, of a shiftable actuator, and electromagnetic means for holding the actuator out of cooperative relation with the actuatable member.

18. In a safety device of the class specified, the combination with an actuatable member Whose position determines the operative and inoperative condition of a door-holding device, of a shiftable actuator, electromagnetic means for holding the actuator out of cooperative relation with the actuatable member, and means for bringing it into this relation.

. 19. In a safety device of the class specified, the combination with an actuatable member whose position determines the operative and inoperative condition of a door-holding device, of a shiftable actuator, electromagnetic means for holding the actuator out of cooperative relation with the actuatable member, and means for bringing it into this relation, and a fixed actuator.

20. In a safety device of the class specified, the combination with an actuatable member whose position determines the operative and inoperative condition of a door-holding device, of a two-part actuator cooperative with said actuatable member, one part being fixed and the other part being normally out of cooperative relation with the actuatable member, and means for automatically shifting the latter part into such relation as the car approaches its point of stopping.

21. A switch-lock having a switch-closing door-holding latch, combined with means for locking the latch in its engaged position as the car passes the floor.

22. A switch-lock having a switch-closing door-holding latch, combined with means for locking the latch in its engaged position as the car passes the floor and a knob connected with said latch.

23. A switch-lock having a switch-closing door-holding latch, combined with a lockingdetent, an actuatable member connected with such detent and a two-part actuator mounted on the car.

24. The combination in an elevator system with an actuatable member, of a two-part actuator for actuating the same, one part for shifting the said member in one direction and the other part for shifting the said member in the opposite direction.

25. The combination with an elevator-car, 5

of an actuatable member mounted adjacent to the line of travel of the car, and a two-part actuator mounted on the car, one part fixed to the car for shifting said actuatable member to and assuring its location in one extreme position of its movement, and the other part movable into and out of cooperative relation with said actuatable member and serving when in cooperative relation therewith to shift the actuatable member to its opposite position.

26. The combination with an elevator-car, of an actuatable member mounted adjacent to the line of travel of the car,a two-part actuator mounted on the car, one part fixed to the car for shifting said actuatable member to and assuring its location in one extreme position of its movement, and the other part movable into and out of cooperative relation with said actuatable member and serving when in cooperative relation therewith to shift the actuatable member to its opposite position, and electromagnetic means whose energized coil holds said movable actuator part out of cooperative relation with the actuatable member.

27. The combination with an elevator-car, of an actuatable member mounted in the elevator-shaft, and a two-part actuator mounted on the car, one part. being fixed relatively to the car and the other part being movable and the actuator having at opposite ends oppositely-inclined working faces forming when the said movable actuator part is in its position of nearest approach a passage for the travel of the actuatable member extending from one extreme position of the latter to the opposite and back again.

28. The combination with an elevator-car of an actuatable member mounted in the elevatorshaft, a striking-roll mounted on said actuatable member, a two-part actuator mounted on the car, one part being fixed relatively to the car and the other part being movable and the actuator having at opposite ends oppositely-inclined working faces and an intermediate vertical portion forming when the said movable actuator part is in its position of nearest approach a passage, determining the line of travel of said striking-roll, extending from one extreme position of the roll to its other extreme position, then in line with this latter position and the car movement and then back again, and means for shifting said movable actuator part.

29. The combination with an elevator-car of an actuatable member mounted in the elevatorshaft, a striking-roll mounted on said actuatable member, a two-part actuator mounted on the car, one part being fixed relatively to the car and the other part being movable and the actuator having at opposite ends op positely-inclined working faces and an intermediate vertical portion forming when the said movable actuator part is in its position of nearest approach a passage determining the line of travel of said striking-roll extending from one extreme position of the roll to its other extreme position, then in line with this latter position and the car movementand then back again, and means for shifting said movable actuator part automatically with the throwing on and with the shutting off of the power.

30. The combination with an elevator-car,of an actuatable member mounted in the elevator.-

shaft, a striking-roll mounted on said actuatable member, a two-part actuator mounted on the car, one part being fixed relatively to the car and the other part being movable and the actuator having at opposite ends oppositely-inclined working faces and an intermediate vertical portion forming when the said movable actuator part is in its position of nearest approach a passage determining the line of travel of said striking-roll extending from one extreme position of the roll to its other extreme position, then in line with this latter position and the car movement and then back again,electromagnetic means the coil of which when energized serves to hold the movable actuator part away from the fixed actuator part, and means for returning said movable actuator part to its position of nearest approach upon the deenergizing of said coil.

31. The combination with an elevator-car of an actuatable member mounted in the elevatorshaft, a striking-roll mounted on said actuatable member, atwo-part actuatormounted on the car, one part being fixed relatively to the car and the other part being movable and the actuator having at opposite ends op positel y-inclined working faces and an intermediate vertieal portion forming when the said movable actuator part is in its position of nearest approach a passage determining the line of travel of said striking-roll extending from one extreme position of the roll to its other ex treme position, then in line with this latter position and the car movement and then back again, electromagnetic means,the coil of which when energized serves to hold the movable actuator part away from the fixed actuator part, and a weight for returning said movable actuator part to its position of nearest approach 5 upon the deenergizing of said coil.

32. The combination with door-restraining means embodying a shiftable part, of an elevator-car, an actuatable member mounted in the elevator-shaft and operatively connected with said shiftable part, a striking-roll mounted on said actuatable member, a two-part actuator mounted on the car, one part being fixed relatively to the car and the other part being movable and the actuator having at opposite 6O ends oppositely-inclined working faces and an intermediate vertical portion forming when the said actuator part is in its position of nearest approach a passage determining the line of travel of said striking-roll extending from one extreme position of the roll to its other extreme position, then in line with this latter position and the car movement and then back again, and means for shifting said movable actuator part automatically with the throwing on and with the shutting oil of power.

33. The combination with a door-latch and a locking-detent, of an elevator-car, an actuatable member mounted in the elcwttoushalt and operatively connected with said detent, a striking-roll mounted on said actuatable member, a two-part actuator mounted on the car, one part being fixed relatively to the car and the other part being movable and the actuator having at opposite ends opposite]y-inclined. working faces and an intermediate vertical portion forming when the said movable actuator part is in its position of nearest approach a passage determining the line of travel oi said striking-well extending from one extreme position of the roll to its other extreme position, then in line with this latter position and the car movement and then back again, and means for shifting said movable actuator part automatically with the throwing on and with the shutting oil of power.

34. The combination with an actuatable member and a parallolly-movable actuator part, one mounted on an elevatoncar and the other in the elevator-shaft, and said actuator part embodying at its ends oppositely-inchned working faces of a support for said actuator part, a coil mounted on the support, a movable core jointed to said actuator part, and means for returning the said actuator part when the coil is deenergized.

35. The combination with an actuatable member and a parallelly-niovable actuator part, one mounted on an elevator-car and the other in the elevator-shaft, and said actuator part embodying at its ends op iositelyinclined. working faces of a support for said actuator part, a coil mounted on the support, a movable core joined to said actuator part, and a counterweight for returning the actuator part when the coil is deenergized.

36. The combination with an actuatable member and a parallelly-movable actuator part, one mounted on an elevator-car and the other in the elevator-shaft, and said actuator part embodying at its ends oppositely-inclined working faces of a support for said actuator part, a coil mounted on the support, a movable core jointed to said actuator part, means for returning the said actuator part when the coil is deenergized, and an actuator part fixed to said support.

37. The combination with an actuator mounted on an elevator-car, of an actuatable member mounted in the elevator-shaft, a rock shaft, a detent secured to said rock-shaft, a rock-arm secured to said shaft, and a link having a pivotal connection with said actuatable member and said rock-arm.

38. The combination with an actuator ITO mounted on an elevator-car, of an actuatable member mounted in the elevator-shaft, a rockshaft, a detent secured to said rock-shaft, a rock-arm ad justably secured to said shaft, and an adjustable link having a pivotal connection with said actuatable member and said rockarm.

39. The combination with an actuator mounted on an elevator-car, of an actuatable member mountedin the elevator-shaft, arockshaft, a detent secured to said rock-shaft, a door-latch with which said detent may cooperate, a keeper for the latch, means for actuating the latch, a rock-arm secured to said shaft, and a link having a pivotal connection with said actuatable member and said rockarm.

40. The combination with an actuator mounted on an elevator-car, of an actuatable member mounted in the elevator-shaft, a rockshaft, a detent secured to said rock-shaft, a

door-latch, with which said detent may coopcrate, a keeper for the latch, a doorknob, an arm on the door-knob spindle, a link connecting said arm on the spindle with the latch, a rock-arm secured to said rock-shaft, and a link between the rock-arm and the actuatable member.

41. The combination with a two-part actuator mounted on an elevator-car, one part being fixed the other relatively movable of electromagnetic means for actuating the movable part of said actuator in substantially the manner described, an actuatable member mounted in the elevator-shaft, a rock-shaft, a detent secured to said rock-shaft, a switch-closing door-latch with which said detent may cooperate, a keeper for the latch, means for manually disengaging the latch from its keeper, a rock-arm secured to said rock-shaft, and a link having a pivotal connection with said actuatable member and said rock-arm.

4:2. The combination with a two-part actuator mounted on an elevator-car, one part being fixed the other relatively movable of electromagnetic means for actuating the movable part of said actuator in substantially the manner described, an actuatable member mounted in the elevator-shaft, a rock-shaft, a detent secured to said rock-shaft, a pivoted switchclosing door-latch with which said detent may cooperate and which is provided at its free end with oppositely-extending projections, a

keeper-frame having a series of three keepers a substantially for the purpose set forth, means otally connected with said limited-throw lever,

a rock-shaft, a detent secured to said rockshaft, a pivoted switch-closing door-latch with which said detent may cooperate and which is provided at its free end with oppositely-extending projections, a keeper-frame having a series of three keepers substantially for the purpose set forth, means for manually disengaging the latch from the keeper, a stop for determining the depressed position of the latch, a rock-arm secured to said rock-shaft, and a link having a pivotal connection with said counterweight-lever and said rock-arm.

In testimony whereof we have hereunto signed our names in the presence of two sub.- scribing witnesses.

HOXVARD F. GURNEY. BROR E. VESTLIN.

Witnesses:

FREDERIO E. TowN, WV M. L. HAsTED'r.

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