Year: 1888

page_text: Date of Application, 30th Jan., 1888
Complete Specification Left, 20th Oct., 1888
Complete Specification Accepted, 23rd Nov., 1888
We, JAMES ARCHER of The Cocoa Works, York, Engineer, and HENRY FAULDER
of Heaton Mersey, near Manchester, Manufacturer do hereby declare the nature of
this invention to be as follows:―
In connection with the cage or movable platform we have a cam or inclined plane
which for a single door may have two working faces but for double doors would
preferably have four working faces, the object aimed at being to automatically
operate the doors at each of the floors served by the hoist in such inanner that as the
cage approaches the floors the doors are opened and as it leaves them the doors are
closed again.
For a single door we prefer to pivot upon the wall or frame-work of the shaft a
bell-crank or angle lever one arm of which carries a pulley or runner which engages
with the cam as it passes; the other arm is connected by a suitable link and joints
with a lever which we will call horizontal although its position varies as it is moved,
This horizontal lever is pivotted to the frame-work of the shaft, is, provided with a
movable balance weight and carries a pulley at its free end and round this pulley
passes a cord or equivalent one end of which is secured to the frame-work or other-
wise and the other to the door the requisite pulleys being used to direct the course of
the cord.
The action is that as the cam upon the cage engages with the runner of the angle
lever the lever is turned upon its pivot moving the horizontal lever by means of the
link and the pulley of the horizontal lever operates the cord which in time lifts the
door. As the cage passes on the second face of the cam allows the angle lever to
return to its norinal position the door closing by its own weight or under the influence
of a spring or weight if desired. The arrangement of the levers can of course be
varied as required to suit circumstances.
For double doors we prefer to double the cam giving it four faces though this is
not absolutely essential and to employ two levers which we will call vertical though

page_text: their positions change. These levers may be pivotted at about one third of their
length from one end and each carries a runner at one end and a grooved pulley at
the other and the arrangement of cords and doors is more or less similar to that already
described but is of course in duplicate.
The levers resemble a pair of scissors reversed in their action the cam forcing
apart their shorter arms and causing the longer arms to cross each other the action
upon the cords being as above described with reference to the single door.
In this case also the shape and arrangement of the levers and cords can be greatly
varied to suit circumstances.
Ti acil
1000

page_text: We, JAMES ARCHER of The Cocoa Works, York, Engineer, and HENRY FAULDER
of Heaton Mersey, near Manchester, 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 :-
In connection with the cage or movable platform we have a cam or inclined plane
which for a single door may have two working faces but for double doors would
preferably have four working faces, the object aimed at being to automatically
operate the doors at each of the floors served by the hoist in such manner that as the
cage approaches the floors the doors are opened and as it leaves them the doors are
closed again.
For a single door we prefer to pivot upon the wall or frame-work of the shaft a
bell crank or angle lever one arm of which carries a pulley or runner which engages
a suitable link and joints
with the cam as it passes; the other arm is connected by
with a lever which we will call horizontal although its position varies as it is moved.
This horizontal lever is pivotted to the frame-work of the shaft, is provided with a
movable balance weight and carries a pulley at its free end and round this pulley
passes a cord or equivalent one end of which is secured to the frame-work or other-
wise and the other to the door the requisite pulleys being used to direct the course
of the cord.
The action is that as the eam upon the cage engages with the runner of the angle
lever the lever is turned upon its pivot moving the horizontal lever by means of the
link and the pulley of the horizontal lever operates the cord which in turn lifts the
door. As the cage passes on, the second face of the cam allows the angle lever to
return to its normal position the door closing gradually by its own weight or under
the influence of a spring or weight if desired. The arrangement of the levers can of
course be varied as required to suit circumstances.
For double doors we prefer to double the cam giving it four faces though this is not
absolutely essential and to employ two levers which we will call vertical though their
positions change. These levers may be pivotted at about one third of their length from
one end and each carries a runner at one end and a grooved pulley at the other and the
arrangement of cords and doors is more or less similar to that already described but
is of course in duplicate.
The levers resemble a pair of scissors reversed in their action the cam forcing apart
their shorter aruns and causing the longer arms to cross each other the action upon the
cords being as above described with reference to the single door.
In this case also the shape and arrangement of the levers and cords can be greatly
varied to suit circumstances.
In the accompanying drawings fig. 1 represents in vertical section a portion of a
hoist or lift constructed according to our invention to operate a single door and figs. 2
and 3 are similar views showing different means for operating double doors in accordance
with our present invention.
Like letters indicate like parts throughout the drawings.

page_text: At figure 1 A indicates the cage, A³ the hauling rope thereof and B the cam (repre-
sented in dotted lines) secured preferably to one of the walls of the said cage in any
suitable manner. Cindicates the bell-crank lever pivotted at C to the beam D of
the frame-work of the lift-shaft and C2 the runner carried. on the arm C³ of the bell-
crank lever. E indicates the link the lower end of which is jointed to the arm of
the bell-crank lever. F indicates the so-called horizontal lever which is pivotted at
one end to the stationary bracket F secured to the frame-work of the lift-shaft or in
any other convenient manner, and which lever is connected at F' to the upper end
of the link E. F indicates the grooved pulley carried in the free end of the lever F
and F3 the balance weight adjustable on the said lever. G indicates the rope or
equivalent one end of which is made fast to the vertically-sliding door H and the
other end of which is secured in a suitable manner to any convenient part of the
walls or frame-work of the lift-shaft, the present illustration representing it as secured
at G to the beam D₁ of the said frame-work. The rope G passes round the pulleys F2
.and I the latter of which is secured to the frame-work, and round such other pulleys
as may be necessary for its proper guidance. J indicates one of the floors served by
the hoist.
When the cage A is approaching (either from above or below) the floor J, the
cam B comes into contact with the runner C2 and thus moves the bell-crank so that,
through it (the said bell-crank lever) and the link E the lever F is drawn downwards
into the position shown in dotted lines by which time the door H, through the loop G¹
of the rope G also having been drawn downwards as will be well understood, will have
been drawn upwards so that free access is had to the cage A or floor J. Immediately
the cage A begins to leave the floor (in either direction) the support to the runner C
is gradually withdrawn and the door either by its own or additional weight or by
springs will descend and close in the hoist-shaft at that part, the levers F and C mean-
while assuming their normal positions.
At figure 2 K indicates the two so-called vertical levers pivotted at K₁ to the
beam D of the frame-work of the lift-shaft and C2 the runners carried at the lower
ends thereof. F2 indicate the grooved pulleys carried in the upper ends of the levers K,
and I indicate pulleys each of which is carried in a bracket or its equivalent secured
in a suitable manner to any convenient part of the walls or frame-work of the
lift-shaft so as to properly guide each of the ropes G at the part between the end G²
at which it is made fast to the frame-work or equivalent and the opposite end at which
it is secured to one of the vertically-sliding doors H. L indicates ropes each of which
at one end is attached to the lower end of one of the levers K and at its other end to
one of the balance weights F3. M indicates pulleys carried in any suitable manner by
the wall or frame-work of the lift-shaft and over each of which one of the ropes L
passes.
It will be noticed that the cam B in this example is formed with four inclined faces
instead of two as in the preceding example where only one door had to be operated;
but if desired two cans each similar to that shown in figure 1 may be used, the
levers K under such construction being adapted to operate in a manner the reverse of
those shown at figure 2, as hereinafter described.
When the cage in figure 2 approaches the floor J either of the ends B¹ of the cam B
enters between the runners (and as the cam proceeds it forces apart the lower ends
of the levers K until the floor of the cage A reaches the floor J by which time the
levers will have been moved into the position indicated in dotted lines and the ropes G
consequently drawn upon so as to raise the doors and give access to the interior of
the cage A. So soon as the cage begins to move away from the floor J and the
widest part of the cam from the runners C² the doors by their own weight or otherwise
will descend into their closed positions as in the preceding example.
In the apparatus represented in figure 3 the levers K are both pivotied on the same
pin K and are arranged so that by the cams B they shall be moved into the position
in which they are indicated in dotted lines in order that their upper ends shall draw
upon the loops G₁ and thereby raise the doors substantially as hereinbefore
explained-

page_text: It is to be observed that as the upper ends of the levers K (fig. 2) cross each other
when the doors are opened one or both of them is or are cranked to give the necessary
clearance and further that the runners C² project sufficiently far out from the levers C
(fig. 1) or K (figs. 2 and 3) and the other parts are so arranged as to enable the cams B
to strike against the said runners and pass clear of all other parts.
It will readily be understood that either in the single or double door examples herein
described the arrangement of the levers and ropes can be greatly varied to suit
circumstances.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. In a hoist or lift the combination with the mechanism such as described for
operating the door H of a two faced cam such as B secured to the cage for the
purpose of imparting the necessary movement to the said mechanism the whole con-
structed and operating substantially as described and illustrated in figure 1 of the
accompanying drawings.
2. In a hoist or lift the combination with mechanism such as described for operating
the doors H of one four-faced cam as illustrated at figure 2 of the accompanying
drawings or of two two-faced cams as illustrated at Fig. 3 of the accompanying
drawings secured to the cage for the purpose of imparting the necessary movement
to the said mechanism the whole constructed and operating substantially as bercin
described.