Improvements in or relating to Self-landing Hoists and in Apparatus connected therewith.
Year: 1899

page_text: Date of Application, 5th May, 1899-Accepted, 24th June, 1899
COMPLETE SPECIFICATION,
Improvements in or relating to Self-landing Hoists and in Apparatus
connected therewith.
I, ALFRED WADSWORTH, of the Firm of William Wadsworth and Sons, School
Hill Works, Bolton, in the County of Lancaster, Millwrights and Machinists, do
hereby declare the nature of my said 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 refers to improvements in or relating to self-landing hoists and
in apparatus connected therewith. Fig. 1-Sheet 1-is a side elevation of my
improvements in or relating to self-landing hoists and in apparatus connected
therewith Fig. 2 a plan of Fig. 1-Fig. 3-Sheet 2-an enlarged elevation of
hoist carriage through line A' B' in Fig. 4-Fig. 4 a plan of Fig. 3-Fig. 5 an
end elevation of hoist-carriage in Fig. 3, and Fig. 6 a plan through line E¹ G
in Fig. 3.
In all the figures the same letters and numerals are employed to indicate
corresponding parts.
A is the door-way of a building; B floor; C carrying girder of hoist, and D the
hoist carriage.
The beams X are held and supported at each end in a wall or by any other
suitable means, such as, beams or other equivalents acording to the room or
building in which the same is located or fixed. To the beams X are hung the
fixings W, being secured by bolts and the like. On one of the fixings Wis
mounted the bearing 7 in which is placed one end of the shaft or centre
carrying the chain or rope barrel Z1; the other end of the shaft or centre 7 being
mounted in the lever S on the pin or centre T located in the fixing W and secured
by the nut 4 On the shaft 2 is mounted the pulley S driven-when hoisting
is required by the friction pulley V2 on the driven shaft V mounted in the
fixings held and supported by the fixings W secured to the underside of the
beams X. The pulley S2 is moved to and from the driven pulley V2 by the
lever S actuated by the chain or rope W³ pasing up to and over the guide
pulleys W and Ws mounted on the fixings W supported by the beam W secured
at one end to the beam X and the other end is built in the wall W. The chain
or rope W3 is guided over the pulley W8 and down the hollow upright shaft or
tube, W to the operating handle lever Y2; the latter being attached by the pin or
centre Y3 to the arm Y secured to the lower or bottom end of the hollow upright
shaft or tube W. The latter is held and supported in position by the fixings 03
and W*. To one of the beams X is secured the fixing Q provided with a facing
of leather Q secured thereto in any convenient manner, the said facing forming
the brake of the hoist when necessary to stop the up and down motions of the
lifting block 2 and hook E2 in any desired position. The fixings W are provided
with the brackets H' on which are mounted the bearings H2 carrying the shaft H³.
The shafts H3 and V3 are provided with the pulleys H and H³ respectively and are
driven or rotated in contrary directions by the belt He operated in the direction
The shafts H³
indicated by the arrows () from any convenient source.

page_text: and V3 are provided with the friction pulley H** and V with which engages as
desired the friction pulley M'; the latter being carried and moved in and out of
contact with the friction pulley H** on the driven shaft H³ and the friction
pulley V on the driven shaft V3, by the movements of the lever P, to the end
of which is attached the chain or rope 12; one end of which passes down and under
the pulley P, then up and over the guide pulley*P* to and around the pulley 15,
from whence it passes over the guide pulley P and down to the lever P. The
pulley is mounted on the centre 17 secured to the arm P8 supported from the
beam X. The pulleys 14 and 1 are carried by the centres P and Q mounted
in the fixing Q supported from the fixing Q. The lever l' is actuated up and
down by means of the chain or rope P² according to the rotary movements given
to the upright shaft or tube W" by the attendant operating the handle or lever Y².
In the framework of the travelling carriage 1 is fixed the centre E secured
thereto by the nut (a). On the centre E is mounted the chain wheel F, which
is operated in either direction by the endless chain G passing over or around the
pulleys H and I and the guide or carrying pulleys J and K. The pulley H is
mounted on the pin or centre (a) attached to the lever P carrying
the friction pulley M¹; the lever P being pivoted on the pin or
centre (b) located in the fixing (e) attached to the underside of the fixings W
supported from the beams X. On the fixed centre. E carrying the chain wheel F
is mounted the toothed wheel L in connection with which operate the levers M
pivoted on the centres N attached to the carriage ]) by the nuts 0, and actuated
by the spiral springs P¹ secured thereto by the pins R; the other ends of the
spiral springs P being secured to the carriage D by the pins S as shown in Fig. 3.
The levers M are provided with the pins T which operate in conjunction with
the stops or projections V secured to the underside of the carrying girder C by
the nuts U, which action releases the catches M from the toothed wheel L and
allows the endless chain G to travel without affecting the movements of the
travelling carriage D, thus allowing the said endless chain G to change position
and effect equal wear throughout. The travelling carriage ]) consists of the
frames Y distanced and bolted together by the bar (7) and nuts (f). The frames Y
are provided with the ends Z to which are pivoted the rollers (g) by means of the
holts (h) and nuts (i). To the upper end of one of the side frames Y of the car-
riage Dare secured the pins or centres () by the nuts (k). On the pins or
centres () are mounted the pulleys () which guide the endless chain G in line
and in contact with the chain wheel mounted on the centre E. The carriage I)
is provided with the distended arms (m), the lower ends of which are provided
with the bosses (n) in which are located the centres (o) secured by the nuts (p).
On the centres (o) are mounted the pulleys A2 for guiding the lifting chain or
rope B to the pulley C of the lifting block 12 and hook 12. On the centres (0)
are mounted the L levers G2 on each side of the pulleys A2, coupled together by
the bolts (r) and nuts (s); the L levers G2 and bolts (7) being for the purpose of
guiding and maintaining the correct working position of the lifting chain or rope 12
according to the movements of the travelling carriage D on the carrying girder C.
The lifting chain or rope B2 is attached at one end to the eye-bolt (t') secured by
the nut (2) to the fixing C on the outer end of the carrying girder C. The
lifting chain or rope B2 passes from the eye-bolt (¹) over the chain pulley A³,
to and under the pulley C3 of the lifting block D2, then up and over the chain
pulley A2 on the inner side of the carriage D to the chain or rope barrel Z¹.
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. The general arrangement, construction, and combination of parts composing
my improvements in or relating to self-landing hoists and in apparatus connected
therewith, consisting of the fixings W suspended from the beams X, with the
carrying girder C; the fixings W.being provided with the bearing 73 and the

page_text: pin or centre T for carrying the lever S and the shaft or centre 73 on which is
mounted the chain or rope barrel and the pulley S, the latter being driven
or rotated by the friction pulley V2 mounted on the shaft V located in the bear-
ings V4 secured to the fixings W; the shaft V3 being provided with the pulley H
driven or rotated by the belt He from any convenient source, and when in action
operates or rotates the barrel Z' and effects hoisting, the latter operation being
produced by pressing the pulley S2 into contact with the driven friction pulley V
by means of the lever S actuated by the chain or rope W³ from the handle.
lever mounted on the lower or bottom end of the hollow upright shaft or
tube W, the whole being connected, applied, and operating substantially as
described and as illustrated in the drawings.
2. In combination with the improvements in or relating to self-landing hoists
and in apparatus connected therewith as set forth in the preceding claim the
general arrangement construction and combination of parts of the travelling
carriage D composed of the frames Y, distanced and held together by the bolt (d)
and nuts (f), and provided with the ends Z in which are located the bolts (h) on
which are mounted the rollers (g) for carrying the same on the girder C; one of
the frames Y being fitted with the centre E on which is mounted the chain
wheel F for operating in conjunction with the endless chain G passing along the
carrying girder C and around the pulleys I and H; the latter being supported
along with the friction pulley M' on the pin or centre (a³) attached to the lever P
pivoted on the pin or centre (b) in the fixing (e) supported from the fixings W,
the lever P being operated to place the friction pulley M in and out of gear
with the driven friction pulleys H and V2 by means of the chain or rope P
passing around or over the pulleys P3 P4 and Po to the pulley P5 mounted on the
hollow upright shaft or tube W; the latter being swivelled in both directions
by the handle or lever Y2 and the arm Y to effect the movements of the lever P
and its connections, the whole being connected, applied, and operating substan-
tially as described and as illustrated in the drawings for the purposes specified.
3. In combination with the travelling carriage 1) the use of the wheel L
mounted on the centre E secured to the frame Y by the nut (a) and the levers M
mounted on the pins or centres N; the levers M being distended and attached
to the arms (m) of the frame Y by the pins R and S and the spiral springs P¹;
the levers M being fitted with the pins T to operate in conjunction with the stops
or projections V on the carrying girder C, the whole being connected, applied,
and operating substantially as described and as illustrated in the drawings in
Figs. 3 to 6 inclusive on Sheet 2 for the purposes specified.
Dated the 4th day of May 1899
EDMUND CHADWICK,
Agent.