Improvements in Elevator Controlling Apparatus.
Year: 1896

page_text: Date of Application, 27th Oct., 1896-Accepted, 12th Dec., 1896
COMPLETE SPECIFICATION.
Improvements in Elevator Controlling Apparatus.
I, CHARLES ASHLEY HARKNESS, of 97 Dover Street, in the City and County
of Providence, State of Rhode Island, United States of America, Gentleman,
do hereby declare the nature of this invention and in what manner the same
is to be performed, to be particularly described and ascertained in and by the
following statement :-
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 for elevating 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 co-operating therewith, and with the doors of
the car and the corridor, or either of them, as will insure the positive locking 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 otherwise purposely or accidentally moved until
the door is closed.
It is also the object of the invention to provide improved means for insuring the
stopping of the car or cab directly at the landings, and to retain the car in 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 length or part of the line
extending 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 against movement
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 and figures
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.
Figure 2 is a vertical sectional view taken on the line 2-2 of Figure 1.
Figure 3 is a horizontal sectional view taken on the line 3-3 of Figure 1.
Figure 4 is a vertical sectional view taken on the liue 4-4 of Figure 3, but
showing a modified form of parts shown in Figure 1.
Figure 5 is a front elevation of a car equipped with another modified form of
means embodying my invention.
Figure 5 is a vertical sectional view illustrating how the car may be stopped

page_text: by means of the auxiliary chain co-operating with the line and connected therewith
or with the valve.
Figure 6 is a horizontal sectional view taken on the line 6-6 of Figure 5.
Figure 7 is a view somewhat similar to Figure 5, but showing a modified form of
the means for stopping the car at the landings.
Figure 8 is a view somewhat similar to Figure 7, but showing a slightly different
form of chain-locking means.
Figure 9 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.
Figure 10 is a horizontal view taken on the line 10-10 of Figure 9.
Figure 11 is a view similar to Figure 9, but showing the invention in connection
with the car or cab door.
Figure 12 is a horizontal sectional view taken on the line 12-12 of Figure 11.
In the drawings, A designates the car or cab of an elevator or lift. B is the
door thereof. C is t.e hoisting cable attached to the top of the car or cab. Dis
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 Figures 1 to 4, 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 in the
top of the elevator well or shaft. One length e 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 d is shown as consisting of a chain with
open links and as passing outside of the car. With this construction, it will be
seen that the occupant of the car by drawing upon the length c of the line which
extends substantially the length of the elevator shaft or well may control the valve
so as to cause the car to move up or down or be stopped, and that if either the
length c or d should be locked against movement when the car is at a standstill, the
valve cannot be moved nor the car started.
Referring to Figures 1 to 4, inclusive, I have shown means for locking an!
holding the chain section against movement the moment the corridor door is moved
to be opened. The said means will now be ċescribed.
e designates a vertical bar which may be bent inward at its ends and from which
there extends a lateral arm pivotally supported on the lower ends of two bars gh
pivoted at their upper ends to the side of the car or cab, and a weighted arm i
extending laterally from the bar & so as to make the construction of the latter t
all intents and purposes a bell crank lever, one arm of which is weighted.
designates a horizontally arranged rod pivoted at its outer end to the bar aud
loosely connected at its inner end in a similar manner to a gravity latch & pivoted
upon a bracket connected with the car. When in normal position the weighted
arm i will serve to hold the latch k out of engagement with the liuks 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 d, 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, and the consequent locking of the
car against movement is effected by means or devices in the hatchway and connected
with or co-acting 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 designates toggle levers pivotally connected with the
door and with a bracket n attached to the casing of the shaft or elevator well.
Compounded with the pivot pin passing through the said bracket is a crauk-like
extension, the laterally projecting pin o from which extends on the outside of and
in contact or nearly in contact with the bar e when the car arrives at a landing or

page_text: stopping point, so that the moment the door is moved to any extent in the direction
of opening it, the said toggle levers will operate the erank and its pin so as to
move the bar e inward against the stress of the weighted arm i and allow the
latch k 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 corridor 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 p made therein
or secured thereto, as shown in Figure 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 Figures 5, 5 and 6, I have shown the chain part of the controlled line as an
auxiliary line and as guided by two guide pulleys y, so that the sprocket
projections on a wheel & may engage the links of the chain. Connected or
compounded with the wheels is a disk or wheel t having notches in its periphery
with which the free end of a pivoted latch u is adapted to engage so as to stop the
rotation of the said disk and wheel and hold the chain and ear against
movement.
On the lower edge or face of the latch w is an inclined projection or cam with
which the upper end of a lever w, fulcrumed or pivoted at x, 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 Figures 5 and 6, 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 so as to allow the free end of the latch u to engage the wheel t,
and when the door is fully closed, the said free end of the said lever will ride on
the said eam projection, so as to lift the latch out of engagement with the notches
or teeth of the said disk t.
v
Referring to Figure 5A 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 d² 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 bary
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 a¹ on the free
end of 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 is rigidly connected with one end
of a lever c inside the car. Connected at one of its ends with the lever b' is a link
or pitman d', the other end of which is pivotally connected with a pin e¹ on a
crank-like piece fulerumed on the car, said pin extending behind or outside of the
bar h.
It will now be seen that the occupant of the car, by the manipulation of the
lever c' may, when the roller a' comes opposite an offset in the rod y move the
lever inward, causing the pin e' to move the bar h and its connections inward, so
as to operate the lever w and let the latch u engage the disk t the same as would
have been the case if the bar e were moved inward by the pin o through the opening
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 Figure 7 are

page_text: somewhat similar to what has just been described with reference to Figures 5 and 6.
Instead, however, of locking the disk t by means of the latch u, the movement of
the said disk may be stopped by bringing a rack bar g¹ 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 and rack-bar g' may be moved with the result described.
In Figure 8, there is shown a movable latch or lock, normally independent of the
valve controlling line like that portrayed in Figure 1; the latch is adapted to
engage the chain part of the line and to be moved and controlled by the levers 61
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 may be
employed to automatically return the lever 6' to normal position.
In Figures 9 and 10, there is shown a bar i connected with the corridor framing
of the elevator well, which bar is provided at the landings with guides k¹ for the
chain part of the line, and pivoted upon the said bar at the landings is the latch k,
provided with a weighted arm k with which a pin 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
latch into 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 k is
adapted to engage the notch or recess n' in the opposite bracket when the latch is
closed, and so maintain it in rigid position.
The construction, arrangement and functions of the parts shown in Figures 11
and 12 are the same as those shown in Figures 9 and 10, excepting that the bar ¹
is connected with the elevator car instead of the corridor framing, and the pin l¹ 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, etc., 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 to the valve, the functions of that portion of the line 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 stops arranged uniformly along the
line and may employ two or more at any desired points.
The latching or locking means as illustrated at k in Figures 1, 4, 8, 9, and 11,
u in Figure 5, and gl in Figure 7, are engaged with the valve controlling 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 Figure 5, comprises the hand-lever c', lever 6', link d', crank f', bar h, and
lever w; in the embodiment of the invention illustrated in Figure 7, comprises the
frame, lever b', and hand lever c¹; and as illustrated in Figure 8 the hand
operative means on the car comprises the hand lever c', lever b', 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 b¹) co-acting therewith whereby
the first said means may be operated only at landings or other predetermined
points.

page_text: The means connected and movable with or co-acting with the door for operating
the locking or latching means, consists in this instance either of the toggle, levers m,
the crank-like extension and the projecting pin, as shown in Figures 1, 3, 5,
and 6, or else the pin l', as shown in Figures 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 co-acting
with the door to cause or allow the latch or lock to engage the line, (said means
comprising bar in Figures 1 and 4, lever win Figure 5, and pin in Figures 9
and 11) are yieldingly connected therewith, so that the movement of the latch or
lock 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 luck were not yieldingly connectel 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 lock 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 lock will drop into place between the stops.
In all these figures, also, a weight or its equivalent constitutes means for
throwing the latch or lock into engagement with the stops, and the said "means
co-acting with the door" hold the means for throwing the latch or lock 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 now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is:
1. In an elevator apparatus, a flexible valve controlling line, provided with
stops supported solely by said line, a latch or lock for said stops, a horizontally
movable door, and means yieldingly connected with said latch or lock and
co-acting with said door for causing the latch or lock to engage said stops when the
door is partially or entirely open.
2. In an elevator apparatus, a flexible valve controlling line provided with stops
supported solely by said line, a latch or lock for said stops, a horizontally sliding
door, and ineans yieldingly connected with said latch or lock and co-acting with
said door for causing the latch or lock to engage said stops when the door is
partially or entirely open.
3. In an elevator apparatus, a flexible valve controlling line provided with stops
supported solely by said line, a latch or lock for said stops, a horizontally sliding
corridor door, and means yieldingly connected with said latch or lock and
co-acting with said door for causing the latch or lock to engage said stops when the
door is partially or entirely open.
4. In an elevator apparatus, a flexible valve controlling line provided with stops
supported solely by said line, a latch or lock for said stops, a horizontally sliding
door, and means yieldingly connected with said latch or lock and co-acting 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 valve controlling line provided with stops
supported solely by said line, a horizontally movable door, a latch or lock out of
the path of the door, and adapted to enter between the stops to lock the line,
and normally held out of engagement with said stops, and meaus co-acting 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 valve controlling line provided with stops

page_text: supported solely by said line, a horizontally movable door, a latch or lock out of
the path of said door, means for throwing the latch or lock into engagement with
said stops, and means co-acting with said door for holding the last said means from
operating to throw the latch or lock into engagement with said stops except when
the door is partially or entirely open.
7. In an elevator apparatus, a horizontally movable door, a flexible valve
controlling line having a portion inside the walls of the elevator shaft or hatchway
and provided with stops, a latch or lock 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 lock, and operated by the said door, for
allowing the latch or lock 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 co-acting with the door to hold the car against movement
after it is stopped.
9. In an elevator apparatus, a flexible valve controlling line, 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, provided with
stops supported solely by said auxiliary or supplemental line, a latch or lock for
said stops, a door, and means co-acting with said door for causing the latch or
lock 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 lock for said stops, a horizontally sliding
door, and means yieldingly connected with said latch or lock and co-acting with
said door for causing the latch or lock 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, a door, and means co-acting with said door for causing the latch or lock
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 co-acting 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 controlling 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 operator,
said auxiliary or supplemental line being provided with stops, a latch or lock for
said stops, a door, and means co-acting 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 lock for said chain, a door, aud means co-acting 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 lock on the car for said stops, a door, and means co-acting with
and operated by said door for causing said latch or lock 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 co-acting with

page_text: and operated by said door for causing the latch or lock 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 lock on the car for said stops, a corridor door, and means
co-acting with and operated by said door for causing the latch or lock 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 lock on the car for said stops, means on the car for throwing
the latch or lock into eugagement with the said stops, a door, and means co-acting
with 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
open.
19. 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 door, and means co-acting
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
Co-acting with said door and 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.
21. In an elevator apparatus, a valve controlling line constructed in the form of
a chain, a car, a latch or lock on said car for said chain, a door, and means co-acting
with said door for causing said latch or lock 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 co-acting with and operated by said door for causing
said latch or lock to positively engage said stops and so lock 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 lock on the car for said stops, a door, and means co-acting
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 lock on the car for said chain, a door, and
means co-acting with and operated by said door for causing said latch or lock 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 hatchway for operating said 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 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.

page_text: 27. 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 a handle on the car for coutrolling said latch or lock.
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 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 upon the car for operating said latch or lock 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 hatchway for operating said latch or lock.
30. In an elevator apparatus, a valve controlling line 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 latch or lock to cause the same to engage said stops to stop the
car, and means co-acting 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
Bupplemental line also controlling the movements of the motor and provided with
stops supported solely by said auxiliary or supplemental line, a car, and a latch or
lock on 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
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 lock
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 lock
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 controlling
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 supple-
mental line, a car, and a latch or lock on the car adapted to positively engage said
stops, and so hold the car against movement after it is stopped, whereby creeping is
prevented.
34. In an elevator apparatus, a valve-controlling 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, and devices in the
hatchway for operating said latching or locking means.
35. 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 engage the same with the chain part of the line to stop
the car.
36. In an elevator apparatus, a valve-controlling 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 co-acting with the last said

page_text: means whereby they may be operated only at landings or other predeterm
points.
37. In an elevator apparatus, the combination of the valve-controlling line, an
offset or auxiliary line connected therewith, and movable means under the control
of the operative and mounted on the car for positively engaging the offset or
auxiliary line.
38. 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 or locking 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 car, and 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 dcor, a latch to positively engage the said stops, means co-acting 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, and its controlling line provided with stops, combined with
a door, a latch to positively engage the said stops, means co-acting with the door to
actuate the latch upon opening the same, a handle on 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 ou
the car adapted to engage said auxiliary line to stop the ear, 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 elevator car, 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 linke 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 supple-
mental 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 bold 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
B

page_text: stop the car, and means co-acting with the last said means for preventing the
operation of the same except at landings or other predetermined points.
Dated this 12th day of October, A.D. 1896.
CHARLES ASHLEY HARKNESS.
Haseltine, Lake & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.