Improvements in or connected with Cage Hoist Doors.
Year: 1893

page_text: The decision of the Comptroller-General, of the 31st day of October 1894,
allowed, under Section 18 of the Patents, &c. Act, 1883, an Amendment of
this Specification.
Date of Application, 12th Apr., 1893
Compl-te Specification Left, 4th Jan., 1894-Accepted, 24th Feb., 1894
PROVISIONAL SPECIFICATION.
Improvements in or connected with Cage Hoist Doors.
We JOSEPH CLULOW JACKSON and JOSEPH OGDEN both of Lansdowne Iron
Works Ward Street Oldham in the, County of Lancaster, Engineers and
Machinists, do hereby declare the nature of this invention to be as follows:-
The invention relates to the locking and unlocking of rising & falling doors of
cage hoist wells automatically. On the cage is arranged a cam or projection which
when the cage arrives at or opposite to the door, operates a lever or arm the said
arm being connected by a torsional spring or other yielding connection, to a finger
or catch, which when in its normal position locks the door, and which when
operated by the cam, through the connections above described releases the door and
takes up a position in which it will allow the balance weight to descend when the
door is raised and will lock the said weight in its lowermost position. On the
departure of the cage the arm is released and the catch moves into position for
locking the door, thus releasing the balance weight, allowing the door to fall and
locking the same in the closed position until the cage again arrives at the door.
Dated this 8th day of April 1893.
JOSEPH CLULOW JACKSON.
JOSEPH OGDEN.
COMPLETE SPECIFICATION (AMENDED).
Improvements in or connected with Cage Hoist Doors.
We JOSEPH CLULOW JACKSON and JOSEPH OGDEN both of Lansdowne Iron
Works, Ward Street, Oldham in the County of Lancaster Engineers and
Machinists, 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 :-
•
The invention relates to the automatic locking and unlocking of the rising and
falling doors of cage hoist wells.
The object of the invention is to provide simple means for ensuring that the
well-door shall be locked whenever the cage is not at, or opposite to, the door and
for providing that the door may be opened and remain open so long as the cage is
at the door.
According to our invention the door and balance-weight of the door, are locked
as required by a catch piece, which engages with notches provided in the door and
balance-weight, and which yields by a twisting or rocking movement about an axis
in entering into such engagement.

page_text: on the
The catch-piece is under the control or operation of a cam or projection
cage, and can be thereby set to either of two positions, in which it is in readiness to
engage the said notches, the movement from one position to the other releasing the
door or the balance-weight as the case may be.
In operation when the cage arrives at or opposite to the door, the cam will cause
the catch to release the door, and will set the said catch in position for locking the
balance-weight.
If now the door be fully opened, the balance-weight will be locked in its
lowermost position by the catch, and the door will thus be held open.
As the cage moves away, the catch being no longer acted upon by the cam or
projection releases the weight, and moves into position for locking the door which
automatically closes when the balance weight is released.
The accompanying drawings illustrate our invention as applied to a cage lift or
hoist such as is ordinarily used in spinning mills and workshops.
Fig. 1. is a side view partly in section showing the catch-piece in engagement
with the balance weight.
Fig. 2. is a plan showing the catch-piece in engagement with the door; the
section of the door and door slide in this figure is taken on the line ay Fig. 1.
Fig. 3. is a front view of the door with the door slide in section.
Figs. 4 and 5 illustrate a modified form of the apparatus.
A. is a wall forming one side of the hoist well, B. one of the conductors or corner-
guides for the cage C, and D is the well door which slides in the guides E, in a
boxed up portion of which works the balance weight F.
In a frame or box-bracket a, provided at each floor and fixed to the corner-
guide B, and door-slide F, is mounted a rod or spindle b, which is capable of both
longitudinal and rocking movements, and has at one end an anti-friction bowl c, to
engage a cam which is fixed to the cage.
At the other end of the spindle b, is a catch-piece g to engage in notches in the
door, and balance-weight, to lock the same and on the central part of the said
spindle b, within the box of the framing a, is fixed a piece d which has an extended
flat bottom bearing on and capable of sliding over a flat or other spring e and which
also forms an abutment for one end of a spring f, the other end of which bears
against the framing a.
The door is formed with a notch h, below which is a striking-surface k, (these
serving to engage the catch-piece g and lock the door) and with a rebate or
recess which extends alongside the notch and striking-surface to the bottom of
the door and into which the catch-piece passes to allow the door to be opened.
The balance weight is similarly formed with a notch ', striking-surface k¹, and
recess¹
A cover m, Fig. 1, is provided for the box of the framing a to exclude dirt &c.,
and to prevent tampering with the apparatus. In Fig. 2. the cover is removed.
The action is as follows:-On the cage arriving at or opposite to the door, the
cam engages the bowl e compressing the spring and moving the rod 6 into the
position shown in Fig. 1. The catch-piece 9 is thus removed from the notch ⁄ into
the recess and the door thereby freed.
If now the door be opened the balance-weight will descend to the position
shown in dotted lines in Fig. 3, the striking-surface k¹ pushing the catch g aside in
passing, thereby rocking the spindle and deflecting the spring e.
The latter then causes the catch to engage in the notch.
The weight being thus locked, the door will be held open, until on the
departure of the cage the spring f returns the rod 6 to the position shown in
Fig. 2. thereby moving the catch into the recess and freeing the balance-weight.
The door will then descend being heavier than the weight, and will in turn
become locked, the striking-surface k passing the catch by pressing it aside, and
in so doing deflecting the spring e as did the balance weight, but in the opposite
direction.
In cases where the cam and catch-spindle cannot be arranged in the same

page_text: vertical plane, the anti-friction bowl may be carried by an arm, so mounted on the
spindle as to allow of the rocking movement of the catch and spindle without
disturbing the engagement of the bowl with the cam. Such an arrangement is
illustrated in Figs. 4 and 5.
The catch-spindle b is loose within the arm n, so as to turn freely therein but to
move with it longitudinally.
In the other end of the arm n is fixed a rod o also mounted in the framing a, and
carrying the bowl c and the spring f.
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 apparatus for automatically locking and unlocking the rising and falling
doors of cage hoist wells a catch capable of a yielding movement about an axis, and
capable also of movement under the control or operation of a cam or projection on
the cage, from either to the other of two positions, for locking and unlocking the
door and balance-weight substantially as herein before described.
2. In apparatus for automatically locking and unlocking the rising and falling
doors of cage hoist wells, a catch on a spindle capable of a yielding rocking
movement, and capable also of longitudinal movement under the control or operation
of a cam or projection on the cage substantially as and for the purposes herein
before described.
3. In apparatus of the kind claimed in the preceding clauses, the combination of
a catch-spindle, a piece such as d fixed thereon, and a spring acting on a flat surface
of said piece substantially as and for the purpose herein before described, with
reference to the accompanying drawings.
4. Apparatus for automatically locking and unlocking the rising and falling
doors of cage hoist wells, constructed and operating substantially as herein before
described with reference to the accompanying drawings.
Dated this 3rd day of January 1894.
JOSEPH CLULOW JACKSON.
JOSEPH OGDEN.