Improvements in Friction Hoists, Winches and the like.
Year: 1899

page_text: Date of Application, 10th Nov., 1899
Complete Specification Left, 18th June, 1900-Accepted, 21st July, 1800
PROVISIONAL SPECIFICATION.
Improvements in Friction Hoists, Winches and the like.
ERNEST ORLANDO PUDDEPHATT, 154 Briggate, Leeds, Engineer, do hereby
declare the nature of this invention to be as follows:
-
This invention relates to improvements in friction hoists, winches & the like,
in which two drums are used & where it is required to drive both drums in the
same direction, or reverse both drums together, or drive the drums in opposite
directions to each other, such as would be used in connection with my previous
Application for Patent No. 24145, 1898.
1
Upon the drum shaft & between the two drums is mounted loosely a wheel
hereinafter called the driving wheel, which in its normal position has its peri-
phery resting against a fixed brake block. Two or more bevel wheels, free to
revolve on their axes are carried by radial spindles fixed in the wheel.
Two drums, one on either side of the driving wheel, also loosely mounted upon
the shaft have formed upon or fixed to them at one end bevel wheels which
hovel wheels gear with the bevel wheels in the driving wheel. At the other end
they have formed upon or fixed to them pulleys for belts or their equivalent.
The drum shaft is carried by suitable bearings & fixed to one or both ends
of the shaft is an eccentric bush or equivalent, which automatically brings the
driving wheel into normal position upon the brake block.
The driving wheel is driven by a friction wheel of suitable material, which
is fixed to a shaft on the opposite side of driving wheel to brake block, this shaft
may be driven continuously by any suitable motive power. Upon this shaft is
also fixed two pulleys, in a line with the pulleys fixed to the drums.
drum is connected to this shaft by a loose or free belt, which is capable of being
tightened by a suitable jockey pulley or equivalent.
Each
When the driving wheel is in its normal position & resting upon its brake
block, the friction wheel is quite clear of same.
One end of the lifting rope or chain is attached to each drum & the operation
is as follows.
For winding the rope or chain upon both drums, the eccentric part at the end
of drum shaft is turned by suitable mechanism sufficiently to lift the driving
wheel quite clear of brake block & into contact with the constantly driven friction
wheel--the two drums through their gearing will be taken round with, & in the
same direction as, the driving wheel.
For unwinding the rope or chain from both drums, the eccentric part is turned
so as to lift the driving wheel clear of brake block, but not so far as to bring
it in contact with the friction wheel-the driving wheel & both drums being free
upon their shaft, will now revolve together in a reverse direction.
To traverse the drums in opposite directions to each other, the driving wheel
remains stationary upon its brake block & by means of suitable mechanism, a

page_text: jockey pulley or its equivalent is brought in contact with either of the loose belts
connecting the drums & the constantly running friction wheel shaft. The belt
thus tightened will drive its drum & through the bevel wheels in driving wheel,
will drive the other drum in an opposite direction.
In place of the belts the drums may be driven in opposite directions by suit- 5
able clutches & gearing-or their equivalent.
Dated this 9th day of November 1899.
Improvements in Friction Hoists, Winches and the like.
I, ERNEST ORLANDO PUDDEPILATT, of Hope View, Moorhead, Shipley, York-
shire, formerly of 154, Briggate, in the City of Leeds, Engineer, do hereby
declare the nature of this invention and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement: -
This invention relates to improvements in friction hoists, winches & the like,
in which two drums are used, & where it is required to drive both drums in the
same direction, or reverse both drums together, or drive the drums in opposite
directions to each other, such as would be used in connection with former Letters
Patent granted me dated 16th November 1898 No. 24.145.
Upon the drum shaft & between the two drums is mounted loosely a wheel
hereinafter called the driving wheel, which in its normal position has its peri-
phery resting against a fixed brake block. Two or more bevel wheels, free to
revolve on their axes are carried by radial spindles fixed in the wheel.
Two drums, one on either side of the driving wheel, also loosely mounted upon
the shaft, have formed upon or fixed to them, at one end, bevel wheels which
bevel wheels gear with the bevel wheels in the driving wheel at the other end,
they have formed upon, or fixed to them pulleys for belts or their equivalent.
The drum shaft is carried by suitable bearings & fixed to one or both ends
of shaft, is an eccentric bush or equivalent, or the shaft may be loose in the bush
or bushes, which automatically brings driving wheel into normal position upon
brake block.
The driving wheel is driven by a friction wheel of suitable material, which
is fixed to a shaft on the opposite side of driving wheel to brake block, this shaft
may be driven continuously by any suitable motive power. Upon this shaft is
also fixed two pulleys in a line with the pulleys fixed to or forming part of the
drums. Each drum is connected to this shaft by a loose or free belt, which is
capable of being tightened by a suitable jockey or tightening pulley or equiva-
lent.
When the driving wheel is in its normal position & resting upon its brake
block, the friction wheel is quite clear of same.
One end of the lifting rope or chain is attached to each drum & the operation
is as follows.
For winding the rope or chain upon both drums, the eccentric part at the end
of the drum shaft, is turned by suitable mechanism sufficiently to lift the driving
wheel quite clear of brake block & into contact with the constantly driven friction
wheel the two drums through their gearing will then be taken round with, &
in the same direction, as the driving wheel.
For unwinding the rope or chain from both drums, the eccentric part is turned
so as to lift the driving wheel clear of brake block, but not so far as to bring

page_text: it in contact with friction wheel--the driving wheel & both drums, being free
upon their shaft, will now revolve together in a reverse direction.
To traverse the drums in opposite directions to each other, the driving wheel
emains stationary upon its brake block & by means of suitable mechanism, a
jockey or tightening pulley or its equivalent is brought in contact with either
of the loose belts connecting the drums & the constantly running friction wheel
shaft.
The belt thus tightened will drive its drum & through the bevel wheels in
driving wheel, will drive the other drum in an opposite direction.
In place of the belts the drums may be driven in opposite directions by suit-
able clutches & gearing or their equivalent.
To fully describe my invention reference is made to the accompanying sheet
of drawings forming part of this specification, in which one arrangement of my
improved friction hoist is shewn.
Figure 1 is an elevation.
Figure 2 is a plan.
The driving wheel 1, is loose upon the shaft 2, & carries bevel wheels 3, which
are free to revolve upon their axes 4, these gear with the two drums 5, through
the bevel teeth 6 forming part of same & are also loose upon the shaft 2. The
periphery of the driving wheel 1, in its normal position rests upon the brake
block 7, fixed to the cross girder 28. One end of the shaft 2, rests in a bear-
ing 8, & the other in the eccentric bush, or bearing 9, carried by the main
girders 27. Attached to this bush is a weighted lever 10, & by lifting same,
through the rope 11, the driving wheel 1, is taken off the brake block 7, &
can be brought in contact with the friction wheel 12 The shaft 13, carrying
friction wheel 12, is supported by hearings 14, & is driven by belting through the
pulley 15. Belt pulleys 16, are fixed on shaft 13, & loose belts 17, connect them
with the pulleys 18, which form part of the drums 5. Jockey or tightening
pullers 19, (shewn dotted when belt is tightened) loose upon spindles 20, which
are fixed to levers 21, carried from brackets 22, are operated by weighted levers 23,
through the rope 24. One end of the lifting rope or chain 25, is attached to each
drum 5, by the pins 26.
Having now particularly described & ascertained the nature of my said
invention & in what manner the same is to be performed I declare that what
I claim is:-
1. A friction hoist or winch having two loose drums connected by gearing to
a loose central driving wheel normally resting upon a brake block & which can
be put into gear for either winding upon or unwinding from both drums at the
same time, by lifting driving wheel off brake block, substantially as herein
shewn & described.
2. The combination of the tightening pulleys and loose belts, connecting the
drums & friction wheel shaft, for driving the drums in opposite directions, sub-
stantially as herein shewn & described.
3. The combination of two drums having pulleys or their equivalent at one
end & bavel wheels at the other, gearing with a central wheel, which wheel
whilst being held stationary will allow the drums on either side to be revolved
in opposite directions to each other, substantially as herein shewn & described.
Doted this 16th day of June 1900.
ERNEST ORLANDO PUDDEPHATT.