Improvements in or relating to the Method of Automatically: Opening, Closing, Looking, and Unlooking the Doors of Hoists, Lifts, and other similar Structures, and in Apparatus for Effecting the same.
Year: 1899

page_text: Date of Application, 6th Jan., 1899-Accepted, 25th Mar., 1890
COMPLETE SPECIFICATION.
Improvements in or relating to the Method of Automatically:
Opening, Closing, Looking, and Unlooking the Doors of Hoists,
Lifts, and other similar Structures, and in Apparatus for
Effecting the same.
We, JOHN RIGBY, of 40, Rishton Lane, Joiner, and WILLIAM RICHARD TAYLOR,
of 60, Derby Street, Joiner, both of Bolton, in the County of Lancaster, do hereby.
declare the nature of our said invention and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
Fig: 1 Sheet 1 is a sectional elevation of so much of a hoist as is necessary to
illustrate our improvements in or relating to the method of automatically opening;
closing, locking, and unlocking the doors of hoists, lifts, and other similar
stractures. Fig. 2 a sectional elevation showing hoist doors open. Fig. 8 a sec
tional plan through line A¹ B' in Fig. 2. Fig. 4 a side view showing operating
lever open. Fig. 5 a part plan through line OD in Fig. 2 showing door open:
Fig. 6 a part plan showing' door closed. Fig. 7, Sheet 2 is a front elevation of
our improved locking apparatus. Fig. 8 a back end view of Fig. 7. Fig. 9 a front
end view of Fig. 7. "Fig. 10 a plan of Fig. 7, and Fig. 11 a sectional plan through
line Gin Fig. 7.
In all the figures the same letters and numerals are employed to indicate corre-
sporiding parts.
A is the hoist cage; B operating ropes; D doors, and E hoist well.
The doors D are constructed to open outwards from the hoist well E as shown in
the drawings: The doors Dare supported from the wall on each side of the door
opening Y by the hinges (a) mounted on the pins (b). To the doors D'are secured
the slides F by the hinges (c). To the inside edges of the slides F. are secured the
plates (d) on which the rollers (f) operate to open the doors D, and the rollers (9)
operate to close the same by the up and down movements of the hoist cage 4. The
rollers
) attached to the end of the sliding bars (1), being secured thereto by the
nuts (m). The sliding bars (1) are loosely mounted in the fixings H secured to the
inside of the hoist cage A. The sliding bars (1) are provided with the pins (4)
which engage with the blotted levers J fixed on the shaft K extending across the
hoist cage A; the shaft K being supported in the bearings or brackets M secured
to the framework of the cage A. The slotted levers J are constructed as shown in
Fig 4o as to allow of the same being opened or closed as desired for operating

page_text: •
the doors D. To one side of each lever J.is secured-by the set screw (y)-the
sliding piece (r) to which is attached the arm (p); the latter being connected to
the lever V¹ by the rod U. and pins X. The handle lever S is fixed to the shaft V
extending across the inside of the cage A and mounted in the levors J
as shown in Figs. 2 and 4. To one end of the shaft K is fixed the
lever W carrying the bowl or roller Q, the latter sliding and rolling in the
guides R provided to effect the necessary movements of the shaft K
and levers J for opening and closing the doors D by the up and down movements of
the hoist cage A. When it is desired to pass a door or doors D-when travelling up
or down--without opening the same the attendant raises the lever S as shown in
Fig. 4, which action lifts the sliding pieces (r) and allows the sliding bars (1) and their
attachmentstoslide in the direction indicated by the arrow (-)which leaves the levers J
free to move according to the positions demanded by the bowl or roller Q operating
in the guides R without opening and closing the doors D. To maintain and determine
the correct sliding position of the slides F the plates (d) are prepared to slide on the
stationary bars () secured to each side of the door opening Y¹ as shown in Figs. 2,
5 and 6.
arms
For locking the doors Dwhen closed the slides F are fitted with the L bars or looks (m²)
which are held securely or locked by the arms or projections (o³) on the sliding
bars (p²) mounted in the bearings (2) on the back plates (8). The sliding bars (p²)
are provided with the pins (a) extending to and through the front plates (a),
between which is mounted the slides (a) having the oblong holes (a) to allow the
sliding plates (a) to move laterally when operated by the plates (6) on the sides
of the hoist cage A. To the slides (a) are secured by the screws (a) the sliding
plates (a) provided with the angular slots (a). Between the back plates (88)
and the front plates (a) are mounted the sliding bars (p²) provided with the
pins (a), which when depressed or pushed by the plates (6³) forces
the sliding bars (p³) in an upward direction and releases the
or projections (0%) from the L bars or locks (m²), when by
the continued travel-up or down of the hoist cage A, the doors D
are opened by the bowls or rollers (f) coming in contact with the plates (d) on the
slides F. When the hoist cage A moves from the doors D, the latter are closed by the
rollers (g) attached to the levers (k) operating on the plates (d) by the movements of
the sliding rods (2) in the direction indicated by the arrow ())->) in Fig. 2, thus
being automatically opened, closed, locked and unlocked by the up and down
movements of the hoist cage A. To ensure of the sliding bars (p) assuming their
correct working position they are provided with the spiral springs (0°) being secured
at one end by the pins (o'), and at the other end by the pins (os) attached to the
bottom bearings (r³). The shaft K is provided with the lever (a) to the outer end
of which is attached the spiral spring (2), the other end of the latter being connected
to the fixing (24) on the top side of the hoist cage A by the nut (5). The hoist is
provided with the usual head gear operated by fast and loose pulleys and the usual
reversing gear for producing the necessary up and down motions of the hoist cage A';
the said reversing gear being operated by a rod or chain extending the full depth of
the hoist well and passing through the hoist cage A to allow of the attendant
operating the same at will,
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
olaim is :-
1. In combination with the doors of hoists, lifts, and similar structures the general
arrangement, construction, and combination of parts, for automatically opening and
closing the same, consisting of the slides F hinged to the doors D, the slides F being
fitted with the plates (d) on which operate the bowls or rollers (f) and (g) attached to
the sliding bars (1) mounted in the bearings H secured to the cage A; the sliding
bars () being provided with the pins (i) and actuated by the levers J and W, the latter
-being provided with the bowl or roller Q sliding and rolling up and down the guides R,

page_text: the whole being connected, applied, and operating substantially as described and
as illustrated in the annexed drawings in Figs. 2 and 3.
2. In combination with the doors of hoists, lifts, and similar structures the general
arrangement, construction, and combination of parts, for automatically locking and
unlocking the same, consisting of the sliding bars (p²) with the arms or projections
(02) mounted in the bearings (2) on the plates (*), the arms or projections (0)
engaging with the L bars or locks (m²); the sliding hars (²) being fitted with the
pins (a) extending into the angular slots (a) in the plates (a) secured to the slides
(a), the latter being operated upon by the plates (68) on the sides of the cage A in
their up and down movements, by which action the slides (a³) are depressed and the
sliding bars (p) are raised thereby unlocking the doors A, the reverse or locking
action being effected by means of the spiral springs (06) immediately the slides (a³)
are free from the plates (65) on the cage A, the whole being connected, applied, and
operating substantially as described and as illustrated in the annexed drawings in
Fig. 1.
8. In combination with the lever J the use of the sliding piece (7) for the purpose
specified, applied and operating substantially as described and as illustrated in the
annexed drawings in Figs. 2 and 4.