US570253A

US570253A - Island

Info

Publication number: US570253A
Authority: US
Publication date: 1896-10-27
Anticipated expiration: 1913-10-27

Description

(No Model.) 4 SheetsSheet 3.

C. A. HARKNESS.

. ELEVATOR. N 570,253, Patented Oct. 27, 1896'.

WITNE 55115- i g- INVENTEIR.

UNITED STAT S PATE T FFICE.

ELEVATOR.

SPECIFICATION forming part of Letters Patent No. 570,253, dated October 2'7, 1896. Application filed February 8, 1895. Serial No. 537,711. (No model.)

To ctZZ whom it may concern.-

Be it known that I, CHARLES A. HARK- NESS, of Providence, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Elevators, of which the following is a specification.

This invention has relation to that class of elevators in buildings in which a line under the control of the attendant is employed to operate and control the mechanism forele vating and lowering the car in order to move the latter up or down or stop its movement in either direction or at any desired point or place.

It is the object of the invention to provide such improvements in the construction of the line and in movable devices cooperating therewith and with the doors of the car or the corridor as will insure the positive lockin g or holding of the lines and consequently the car against movement the moment the' door is moved 'to any extent to open it and prevent the line from being operated and the car from creeping or being otherwisepurposely or accidentally moved until the door is closed.

It is also the object of the invention to provide improved means for insuring the stop ping of the car or cab directly at the landings and to retain the carin stopped position until everything is in readiness to start with safety.

It is also the object of the invention to provide other improvements incidental to the foregoing and of importance in the construction and mode of operation of means for controlling the movement of elevator cars or cabs.

To these ends the invention consists in constructing a lengthor part of the line extend ing from the top to the bottom of the well, or an offset or auxiliary line also controlling the valve, as a chain or as the equivalent of a chain, and providing devices co-acting with the car or cab door or with the door of the corridor which are adapted to engage the said chain-section and lock the same againstmovement the moment the door is moved to any extent toward open position, and which may at discretion be manipulated to stop the movement of the car as well.

The invention also consists in other improvements, as will appear from the description and claims given and made hereinafter.

Reference is to be had to the annexed drawings, and to the letters marked thereon, forming a part of this specification, the same letters designating the same parts or features, as the case may be, wherever they occur.

Of the drawings, Figure 1 is a front elevation of an elevator car or cab and its immediate adjuncts embodying one form of my invention. Fig. 2 is a vertical sectional view taken on the line 2 2 of Fig. 1. Fig. 3 is a horizontal sectional View taken on the line 3 3 of Fig. 1. Fig. 4 is a vertical sectional view takenon the line 4 4 of Fig. 3, but showing-a modified form of parts shown in Fig. 1. Fig. 5 is a front elevation of a car equipped .with another modified form of means embodying my invention. Fig. 5 is a vertical sectional view illustrating how the car may be stopped by means of the auxiliary chain cooperating with the line and connected therewith or with the valve. Fig. 6 is a horizontal sectional view taken on the line 6 6 of Fig. 5. Fig. 7 is a View somewhat similar to Fig. 5, but showing a modified form of the means for stopping the car at the landings. Fig. 8 is a view somewhat similar to Fig. 7, but showing a slightly different form of chainlocking means.- Fig. 5) is a front elevation showing still another varied form of means for guiding and locking the chain-line, the devices being represented as applied to the corridor-door of an elevator Well or shaft. Fig. 10 is a horizontal view taken on the line 1O 10 of Fig. 9. Fig. 11 is a similar view to Fig. 9, but showing the invention in connection with the car or cab door. Fig. 12 is a horizontal sectional view taken on the line 1212 of Fig. 11.

In the drawings, A designates the car or cab of an elevator or lift. B is the door thereof. O is the hoisting-cable, attached to the top of the car or cab. D is the casing of the elevator hatchway, well, or shaft. E is the corridor-door. F is the valve. These parts are old and common and may be of the form and kind shown, or of any other suited to the purpose.

Referring more particularly to Figs.1 toj l, a designates the line or cable for operating the valve, as F, for controlling the motor, and which line may also be termed a standing valve-controlling line, said line or cable being suitably connected at its ends to the valve and extending over a pulley or sheave I) in the top of the elevator well or shaft. One length, 0, of the said line is shown as passing through the car or cab and as consisting of what may be considered a rope or cable, while the other length of the line, (1, is shown as consisting of a chain with open links and as passing outside of the car. Vith this construction it will be seen that the occupant of the car by drawing upon the length 0 of the line may control the valve so as to cause the carto move up or down or be stopped, and that if either the length 0 or (1 should be locked against movement when the car is at a standstill the valve cannot be moved nor the car started.

Referring to Figs. 1 to 45, inclusive, I have shown means for locking and holding the chain-section against movement the moment the corridor-door is moved to be opened. The said means will now be described.

6 designates a vertical bar which may be bent inward at its ends and from which there extends a lateral arm f, pivotally supported on the lower ends of two bars 9 h, pivoted at their upper ends to the side of the car or cab, and a weighted arm t, extending laterally from the bar 7t, so as to make the construc tion of the latter to all intents and purposes a bell-crank lever,one arm of which is weighted.

j designates a horizontally-arranged rod pivoted at its outer end to the bar 6 and loosely connected at its inner end in a similar manner to a gravity latch is, pivoted upon a bracket Z, connected with the car. \Vhen in normal position, the weighted arm 2' will serve to hold the latch 75 out of engagement with the links of the chain, but when the said latch is allowed to fall by its own gravity its free end will enter the opening in one of the links of the chain (Z and hold the said chain against movement, so that the car cannot be started until the said latch is disengaged from the chain. This locking of the chain portion of the line, which extends substantially the length of the elevator shaft or well, and the consequent locking of the car against movement is effected by means or devices in the hatchway and connected with or coacting with the door, as shown in the figures of the drawing last mentioned, through the opening of the corridor-door to the slightest extent. In said last-mentioned figures, m design ates toggle-levers pivotally connected with the door and with a bracket 91, attached to the casing of the shaft or elevator-well. Compounded with the pivot-pin passing through the said bracket is a crankdike extension, the laterally-projecting pin 0 from which extends on the outside of and in contact or nearly in contact with the bar 6 when the car arrives at a landing or stopping-point, so that the moment the door is moved to any extent in the direction of opening it the said toggle lovers will operate the crank and its pin so as to move the bar 6 inward against the stress of the weighted arm i and allow the latch It" to drop and lock the chain part d of the line, and consequently the car, against movement until the door is again fully closed. By this means the opening of the corr dor-door directly controls the motor or the power-generating device and renders it inoperative until the door is closed.

It is obvious that instead of employing an absolute chain a rope, cable, or other flexible line may be used having knots, balls, or other enlargements 19 made therein or secured thereto, as shown in Fig. 4, or any valve-operating device having openings may also be used and the free end of the latch bifurcated, as indicated by dotted lines in the said figure, so that the said bifurcation may be caused to straddle the line between the said enlargements with the same effect as would be produced by its engagement with the links of the chain before described.

In Figs. 5, 5, and 6 I have shown the chain part of the controllingline as an auxiliary line and as guided by two guide-pulleys q, so that the sprocket projections 1' on a wheel 5 may engage the links of the chain. Connected or compounded with the wheel 8 is a disk or wheel if, having notches in its periphery,with which the free end of a pivoted latch u is adapted to engage, so as to stop the retation of the said disk and wheel and hold the chain and car against movement.

On the lower edge or face of the latch u is an inclined projection or cam r, with which the upper end of a lever 20, fulcrumed or pivoted at so, is adapted to engage, the lower end of the said lever being pivoted to the inner end of the bar f. As will be seen by an inspection of Figs. 5 and (3, the construction and arrangement is such that when the door is opened the upper end of the lever will be moved on the cam projection t so as to allow the free end of the latch u to engage the wheel 2, and when the door is fully closed the said free end of the said lever will ride on the said cam projection, so as to lift the latch out of engagement with the notches or teeth of the said disk 1.

Referring to Fig. 5, it will be seen that instead of forming a portion of the line itself in the form of a chain or a cable having knots, balls, or enlargements I employ an offset or auxiliary chain or cable (1 which may be either connected to the line itself or be connected directly with the valve operating means.

To enable the car to be stopped at certain intervals, I may provide a rod or bar y, extending the entire length of the elevator shaft or well, which rod is at the desired intervals bent or otherwise provided with offsets z. A roller or pin a on the free end of a lever b is adapted to run in contact with or in close proximity to the said rod, and the pivot or fulcrum of the said lever Z) is rigidlyconnected with one end of a lever 0 inside the car. Connected at one of its ends with the lever c is a link or pitman d, the other end of which is pivotally connected with a pin 0 on a crank-like piece f, fulcrnmed on the car, said pin extending behind or outside of the bar h.

It will now be seen that the occupant ofthe car, by the manipulation of the lever 0'', may, when the roller a comes opposite an offset in the rod y, move the lever b inward, causing the pin 6 to move the bar it and its connections inward, so as to operate the lever to and let the latch Lb engage the disk 6 the same as would have been the case if the bar 0 were moved inward by the pin 0 through the open ing of the door.

It is also to be noted that if the disk t and wheels should be latched against movement, as just described, the continued movement of the car up or down will draw upon the chain or auxiliary part of the line and move the latter until the valve is closed and the car is stopped, and that the latter cannot be started again until the disk t is unlatched or released, so that the line can be moved. This means may be employed for making certain the stopping of the car at the landings.

The construction and mode of operation of the devices shown in Fig. 7 are somewhat similar to what has just been described with reference to Figs. 5 and 6. Instead, however, of locking the disk t by means of the latch it the movement of the said disk maybe stopped by bringing a rack-bar g into engagement with the teeth of the disk through the medium of a sliding frame h, with which the lower end of the lever b is pivotally connected, so that by the movement of the lever c the frame it and rack-bar g may be moved with the result described.

In Fig. 8 there is shown a movable latch or look normally independent of the valve-controlling line like that portrayed in Fig. 1. The latch is adapted to engage the chain part of the line and to be moved and controlled by the levers b and c, the latter being inside the car, through the medium of a link or pitman j, as will be readily understood without further description. The spring j may be employed to automatically return the lever b to normal position.

In Figs. 9 and 10 there is shown a bar 1 connected with the corridor-framing of the elevator-well, which bar is provided at the landings with guides k for the chain part of the line, and pivoted upon the said bar at the landings is the latch 70, provided with a weighted arm with which a pin Z on the corridor-door is adapted to come into contact when the said door is closed and raise the said weighted arm and hold the latch out of contact with the links of the chain; but the moment the corridor-door is moved toward open position the weighted arm will fall, forcing the latchjinto engagement with one of the links of the .chain portion of the line and hold the latter against movement, and as a consequence prevent the car from being started up or down until the door is again fully closed. The end of the latch 7c is adapted to engage the notch or recess 7t in the opposite bracket when the latch is closed and so maintain itin rigid position.

The construction, arrangement, and functions of the parts shown in Figs. 11 and 12 are the same as those in Figs. 9 and 10, excepting that the bar 2" is connected with the elevator-car instead of the corridor-framing, and the pin Z is connected with the car-door instead of the corridor-door.

I have herein referred to the line as having a portion thereof constructed in the form of a chain, or a cable provided with balls, stops, attachments, &c., and I wish to be understood as meaning that the line may have a portion of its own length so constructed or it may have a portion so constructed and connected thereto or connected with the valve, the functions of that portion of theline which is so constructed being the same in either case.

The object in constructing a portion of the line in the form of a chain or of a cable with attachments, balls, clips, or enlargements is to provide some means by which the lines may be positively engaged without injury thereto. It is practically impossible to obtain a proper positive engagement of the line to lock the car against movement without pinching or injuring the line unless the line be provided with stops. Hence I employ a chain (the links of which form the stops) or a cable provided with stops in the form of clips, attachments, or like devices. Hence it will be seen that I am not limited to having the stopsarranged uniformly along the line and may employ two or more at any desired points.

The latching or locking means, as illustrated at It in Figs. 1, 4c, 8, 9, and 11, u in Fig. 5, and g'in Fig. 7, are engaged with the valvecontrolling line (which, as just said, is provided with stops) by either hand-operative means on the car or else by means connected with the door.

The hand-operative means on the car in that form of the invention illustrated in Fig. 5 comprises the hand-lever a, lever I), link d, crank f, bar h, and lever to; in the embodiment of the invention illustrated in Fig. 7 comprises the frame 77/, lever b, and handlever c; and as illustrated in Fig. 8 the handoperative means on the car comprises the hand-lever c, lever 17, and link j; and, as hereinbefore stated, the means on the car for engaging the latching or locking means with the line have means (consisting of rod or bar y, provided with offsets and a roller or pin on the free end of the lever 17) coacting therewith, whereby the first-said means may be operated'only at landings or other predetermined points.

The means connected and movable with or coacting with the door for operating the looking or latching means consists in this instance either of the toggle-levers m, the cranklike extension, and the projecting pin, as shown in Figs. 1, 3, 5, and 6, or else the pin I, as shown in Figs. 9 to 12, inclusive.

I do not wish to be understood as limiting myself to the specific devices herein shown and described, as they may be changed and modified without departing from the spirit and scope of my invention.

It will be noticed that the means connected with the latch or lock and coacting with the door to cause or allow the latch or look to engage the line (said means comprising bar j in Figs. 1 and 4, lever 10 in Fig. 5, and pin Z in Figs. 9 and 11) are yieldingly connected therewith, so that the movement of the latch or look may cease in case the latter comes into contact with a stop (a cross-bar of a link, a stop on the line, or the end of a tooth on a wheel) while the movement of the door continues. If the latch or look were not yieldingly connected with the means operated by the door, some parts would be broken on opening the door in case the line were not in position for the latch or look to enter between the stops. As soon as, however, after the door is open there is any movement of the line or the car the latch or look will drop into place between the stops. In all these figures also a weight or its equivalent constitute .m cans for throwing the latch or look into engagement with the stops, and the said means coacting with the door hold the means for throwing the latch or look into engagement with the stops from operating except when the door is open.

By mounting the latch or lock on the car itself the line is pulled one way or the other as the car moves and shifts the valve automatically, so as to counteract any effects of leakage at the valve, and thereby effectually prevents what is commonly termed creeping.

Having thus explained the nature of the invention and described a way of constructing and using the same, though without attempting to set forth all of the forms in which it may be made or all of the modes of its use, it is declared that what is claimed is 1. In an elevator apparatus,a flexible valvecontrolling line, provided with stops supported solely by said line, a latch or look for said stops, a horizontally-movable door, and means yieldingly connected with said latch or look and coacting with said door for causing the latch or look to engage said stops when the door is partially or entirely open.

2. In an elevator apparatus, a flexible valvecontrolling line provided with stops supported solely by said line, a latch or look for said stops, a horizontally-sliding door, and means yieldingly connected with said latch or lockand coacting with said door for causing the latch or look to engage said stops when the door is partially or entirely open.

3. In an elevator apparatus, a flexible valvecontrolling lineprovided with stops supported solely by said line, a latch or look for said stops, a horizontally-sliding corridordoor, and means yieldingly connected with said latch or lock and coacting with said door for causing the latch or look to engage said stops when the door is partially or entirely open.

I11 an elevator apparatus, a flexible valvecontrolling line provided with stops supported solely by said line, a latch or look for said stops, a horizontally-sliding door, and means yieldingly connected with said latch or look and coacting with and operated by said door for causing the latch or lock to engage said stops when the door is partially or entirely open.

5. In an elevator apparatus, a flexible valvecontrolling line provided with stops supported solely by said line, a horizontally-movable door, a latch or look out of the path of the door and adapted to enterbetween the stops to lock the line, and normally held out of engagement with said stops, and means coacting with the door for allowing the latch to enter between the stops when the door is open and until it is closed.

6. In an elevator apparatus, a flexible valvecontrolling line provided with stops supported solely by said line, a horizontally-movable door, a latch or look out of the path of said door, means for throwing the latch or look into engagement with said stops, and means coacting with said door for holding the lastsaid means from operating to throw the latch or look into engagement with said stops except when the door is partially or entirely open.

7. In an elevator apparatus, ahorizontallymovable door, a flexible valve-controllin g line having a portion inside the walls of the ele vator shaft or hatchway and provided with stops, a latch or look in the shaft or hatchway to enter between the said stops to lock the line, and out of the path of the said door, and means yieldingly connected to the latch or look and operated by the said door, for allowing the latch or look to enter between said stops when the door is partially or entirely open.

8. In an elevator apparatus, a car, a door, a flexible valve-controlling line, an auxiliary or supplemental line also controlling the movements of the motor and provided with stops coacting with the door to hold the car against movement after it is stopped.

9. In an elevator apparatus, a flexible valvecontrollingline, an auxiliary or supplemental line also controlling the movements of the motor and connected to said valve-controlling line so as to move in the same direction as that part of said valve'controlling line which is directly acted upon by the operator and provided with stops supported solely by said auxiliary or supplemental line, a latch or look for said stops, a door, and means coacting with said door for causing the latch or look to positively engage said auxiliary or supplemental line when the door is partially or entirely open.

10. In an elevator apparatus, a flexible valve-controlling line having two or more stops for each landing, a latch or look for said stops, a horizontally-sliding door, and means yieldingly connected with said latch or look and coacting with said door for causing the latch or look to engage said stops when the door is partially or entirely open.

11. In an elevator apparatus, a valve-controlling line part of which is constructed in the form of a chain, latching or locking means to engage the links of the said chain, adoor, and means coacting with said door for causing the latch or look to engage the chain part of the line when the door is partially or entirely open.

12. In an elevator apparatus, a valve-controlling line, part of which is constructed in the form of a chain with open links, latching or locking means to enter and engage said open links, a door, and means coacting with said door for causing the latching or locking means to enter and engage the said links when the door is partially or entirely open.

13. In an elevator apparatus, a flexible valve-controllin g line, an auxiliary or supplemental line also controlling the movements of the motor and being so connected to said valve-controlling line as to move in the same direction as that part of said valve-controlling line which is directly acted upon by the op.- erator and said auxiliary or supplemental line being provided with stops, a latch or lock for said stops, a door, and means coacting with said door for causing said latch or lock to engage said stops when the door is partially or entirely open.

14. In an elevator apparatus, a flexible valve-controlling line, an auxiliary or supplemental line also controlling the movements of the motor and constructed in the form of a chain, a latch or look for said chain, a door, and means coacting with said door for causing the latch or lock to positively engage said chain when the door is partially or entirely open.

15. In an elevator apparatus, a flexible valve-controlling line provided with stops, a car, a latch or look on the car for said stops, a door, and means coacting with and operated by said door for causing said latch or look to engage said stops when the door is partially or entirely open.

16. In an elevator apparatus, a valve-controlling line provided with stops, a car, a movable latch or lock on the car for said stops, a door, and means coactingowith and operated by said door for causing the latch or look to move into engagement with said stops when the door is partially or entirely open, and to move out of engagement with said stops when the door is closed.

17. In an elevator apparatus, a flexible valve-controlling line provided with stops, a car, a latch or look on the car for said stops,

a corridor-door, and means coacting with and operated by said door for causing the latch or look to engage said stops when the door is partially or entirely open.

18. In an elevator apparatus, a flexible valve-controlling line provided with stops,'a car, a latch or look on the car for said stops, means on the car for throwing the latch or look into engagement with the said stops, a door, and means coacting with said door for holding the last-said means from operating to throw the latch or look into engagement with the said stops except when the door is partially or entirely open.

19. In an elevator apparatus, a flexible valve-controlling line provided with stops, a car, a latch or look on the car for said stops, means on the car for throwing the latch or look into engagement with the said stops, a door, and means coacting with and operated by said door for holding the last-said means from operating to throw the latch or lock into engagement with the said stops except when the door is partially or entirely open.

20. In an elevator apparatus, a flexible valve-controlling line provided with stops, a car, a latch or lock on the car for said stops, means on the car for throwing the latch or lock into engagement with the said stops, a corridor-door, and means coacting with said door and holding the last-said means from operating to throw the latch or look into engagement with the said stops except when the door is partially or entirely open.

21. In an elevator apparatus, a valve-controllingline constructed in the form of a chain, a car, a latch or look on said car for said chain, a door, and means coacting with said door for causing said latch or look to positively engage said chain when the door is partially or entirely open.

22. In an elevator apparatus, a flexible valve-controlling line, an auxiliary or supplemental line also controlling the motor and being so connected to said valve-controlling line as to move in the same direction as that part of said valve-controlling line which is directly acted upon by the operator and said auxiliary or supplemental line being provided with stops, a car, a latch or lock on the car for said stops, a door, and means coacting with and operated by said door for causing said latch or look to positively engage said stops and so look the operative line against movement and the car against creeping when the car is stopped and the door partially or entirely open.

23. In an elevator apparatus, a flexible valve-controlling line, an auxiliary or supplemental line also controlling the movements of the motor, and provided with stops, a car, a latch or look on the car for said stops, a door, and means coacting with and operated by said door for causing said latch or lock to engage said stops when the door is partially or entirely open.

24:. In an elevator apparatus, a flexible valve-controlling line, an auxiliary or supplemental line also controlling the movements of the motor and constructed in the form of a chain, a car, a latch or look on the car for said chain, a door, and means coacting with and operated by said door for causing said latch or look to engage said chain when the door is partially or entirely open.

25. In an elevator apparatus, a valve-controlling line part of which is provided with openings, a car, a latch or lock on the car movable relative to said car and adapted to enter and engage said openings, and so hold the car against movement after it is stopped, and means in the hatehway for operating saic latch or lock.

26'. In an elevator apparatus, a valve-controlling line part of which is constructed in the form of a chain with open links, a car, a latch or look on the car adapted to enter and engage the links of said chain, and so hold the car against movement after .it is stopped.

27. I11 an elevator apparatus, a valve-controlling line part of which is constructed in the form of a chain with open links, a car, a latch or look on the car adapted to enter and engage the links of said chain, and so hold the ear against movement after it is stopped, and a handle on the car for controlling said latch or look.

28. In an elevator apparatus, a valve-controlling line part of which is constructed in the form of a chain with open links, a car, a latch or look on the car adapted to enter and engage the links of said chain, and so hold the car against movement after it is stopped, and means upon the car for operating said latch or look to engage the links of said chain to stop the car.

29. In an elevator apparatus, a valve-controlling line part of which is constructed in the form of a chain with open links, a car, a latch or lock on the car adapted to enter and engage the links of said chain, and so hold the car against movement after it is stopped, and means in the hatehway for operating said latch or look.

30. In an elevator apparatus, a valvecontrolling line provided with stops, a car, a latch or look on the car movable relative to said car and adapted to engage said stops, and so hold the car against movement after it is stopped, means upon the car for controlling the latch or look to cause the same to engage said stops to stop the car, and means coacting with the last-said means for preventing the operation of the same except at landings or other predetermined points.

31. In an elevator apparatus, a flexible valve-controlling line, an auxiliary or supplemental line also controlling the movements of the motor and provided with stops supported solely by said auxiliary or supplemental line, a car, a latch or look 011 the car adapted to positively engage said stops, and so hold the car against movement after it is stopped.

32. In an elevator apparatus, a flexible valve-controlling line, an auxiliary or supplementalline also controlling the movements of the motor and provided with stops supported solely by said auxiliary or supplemental line, a car, a latch or look on the car adapted to positively engage said stops, and so hold the car against movement after it is stopped, and means upon the car for causing said latch or look to engage said stops while the car is moving and so bring said car to a state of rest.

33. In an elevator apparatus, a flexible valve-controlling line, an auxiliary or supplemental line also controlling the motor and being so connected to said valve-controlling line as to move in the same direction as that part of said valve-controllii'ig line which is directly acted upon by the operator and said auxiliary or supplemental line being provided with stops supported solely by said auxiliary or supplemental line, a car, a latch or look on the car adapted to positively engage said stops, and so hold the car against movement after it has stopped, whereby creeping is prevented.

3a. In an elevator apparatus, a valve-com trolling line, part of which is constructed in the form of a chain extending substantially the length of the elevator shaft or well, com bined with latching or locking means to engage the links of the said chain to hold the line against movement after the car is stopped, and devices in. the hatehway for operating said latching or locking means.

85. In an elevator apparatus, a valve-controlling line, part of which is constructed in the form of a chain with open links, combined with latching or locking means to enter and engage the links of the said chain to hold the line against movement after the car is stopped, and means upon the car for controlling the latching or locking means to e11- gage the same with the chain part of the line to stop the car.

36. In an elevator apparatus, a VfllVG-CO11 trolling line, part of which is constructed in the form of a chain extending substantially the length of the elevator shaft or well, combined with latching or locking means to engage the links of the said chain to hold the line against movement after the car is stopped, means within the car for controlling the latching or locking means to engage the same with the chain part of the line to stop the car, and means coacting with the last-said means whereby they may be operated only at landings or other predetermined points.

37. In an elevator apparatus, the combina tion of the valve-controlling line, an oitset or auxiliary line connected therewith, and movable means under the control of the operative and mounted 011 the car for positively engaging the offset or auxiliary line.

88. In an elevator apparatus, the combination with a valve-controlling line adapted to be shifted by the attendant, and an auxiliary line outside the car, of latching or locking means mounted on the outside of the car for engaging the auxiliary line when the car is stopped, and a door coacting with the said latching or locking means to cause it to engage the auxiliary line.

39. An elevator-car and its controlling-line, combined with latching or locking means for engaging the line to stop the car, a device on the car to actuate the said latching orlocking means, and means for preventing the actuation of the said device until the car has reached a predetermined point in its travel.

40. An elevator-car and its controlling-line, combined with means for engaging the line to stop the car, a lever on the car to actuate the said means, a handle also on the car to move the said lever, and a rod provided with offsets at desired points to prevent the lever from being operated excepting When its free end shall have reached the offsets of the rod.

41. An elevator-carand its controlling-line provided with stops, combined with a latch to positively engage the said stops, a lever on the car to control the said latch, a handle also on the car to move the said lever, and a rod provided with offsets at desired points to prevent the said lever from being operated excepting when the free end thereof shall have reached the offsets of the rod.

42. An elevator-car, and its controlling-line provided with stops, combined with a door, a latch to positively engage the said stops, means coacting with the door to actuate the latch upon opening the same, and a handle on the car to operate the said latch when the door is closed.

43. An elevator-car, andits controlling line provided with stops, combined With a door, a latch to positively engage the said stops, means coacting with the door to actuate the latch upon opening the same, a handle 011 the car to operate the said latch when the door is closed, and means for preventing the actuation of the said handle until the car has reached a predetermined point in its travel.

44. An elevator-car, and a controlling-line under the control of the operative and connected With the motor, in combination with an auxiliary or supplemental line formed as a chain and connected with the motor, latching or locking means to engage the links of the said chain to stop the travel of the car, and means for operating said latching or locking means.

45. An elevator-car, and a controlling-line under the control of the operative and connected With the motor, in combination With an auxiliary line arranged parallel with the controlling-line and having its ends secured thereto, a latch on the car adapted to engage said auxiliary line to stop the car, and a handle under the control of the operative for operating said latch to stop the car and to prevent creeping of the same when it is stopped.

46. An elcvatorcar, and a controlling-line under the control of the operative and connected with the motor, in combination With an auxiliary line formed as a chain with open links and arranged parallel with the controlling-line and having its ends secured thereto, a latch on the car adapted to enter any one of the open links of the auxiliary line to stop the car, a handle, and devices for connecting said handle with the latch for operating said latch to stop the car and to prevent creeping of the same When it is stopped.

47. In an elevator apparatus, a valve-controlling line, an auxiliary or supplemental line also controlling the motor and provided with stops, a car, a latch or lock on the car movable relative to said car and adapted to engage said stops, and so hold the car against movement after it is stopped, means upon the car for controlling the latching or locking means to cause the same to engage said stops to stop the car, and means coacting with the last-said means for preventing the operation of the same except at landings or other predetermined points.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing Witnesses, this 5th day of February, A. D. 1895.

CHARLES A. HARKNESS.

Witnesses:

ARTHUR W. CROSSLEY, O. G. STECHER.