Improvements in Apparatus for Raising, Lowering and Traversing or Transporting Loads.
Year: 1898

page_text: Date of Application, 16th Nov., 1898
Complete Specification Left, 18th Aug., 1899-Accepted, 18th Nov.,
1899
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Raising, Lowering and Traversing or
Transporting Loads.
I, ERNEST ORLANDO PUDDEPHATT, of 154, Briggate, in the City of Leeds,
Engineer, do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in that class of apparatus for raising,
lowering and traversing or transporting loads in which a carriage mounted on a
girder, beam or cable or its equivalent is employed, and its object is to facilitate
and expedite the movements or transference of the load
For this purpose I employ a carriage having two sheaves or pulleys mounted
loosely on the same shaft carried by suitable bearings in the carriage. Concentric
bevel wheels are formed or fixed upon neighbouring faces of the two pulleys and
a disc or wheel hereinafter called the traversing wheel is rigidly fixed on the
sheave shaft between the two sheaves. The traversing wheel has one or more
bevel wheels mounted on radial shafts secured to it which bevel wheels are
arranged to engage the bevel wheels on the sheaves. The periphery of the
traversing wheel is arranged to bear against the underside of the girder or its
equivalent and it may be covered with india-rubber or it may be made with teeth
to engage a rack or the like on the girder. The carriage is supported by wheels
or runners bearing on the girder and one or more of these wheels may be driven
from the traversing wheel.
A winch with two drums is used with the apparatus. One end of the rope or
chain is attached to one drum and passes over a pulley fixed at the near end of the
girder, round one of the said sheaves then round a pulley by which the load is
supported, then up again and round the other sheave and then round a pulley
at the other end of the girder and back over another pulley at the near end of the
girder down to the other drum of the winch.
The winch is provided with suitable clutches and is so arranged that both the
drums may be driven in the same direction, or either or both be reversed or
either of them be stopped.
To raise the load both the winch drums are driven in the direction required to
wind the chain or rope thereon and to lower the load the winch drums are both
reversed. To traverse the load the two drums are driven in opposite directions
so that the rope or chain is unwound off one whilst it is wound onto the other
the direction in which the drums revolve determines the direction of the traverse.
Or the load may be lowered and traversed at the same time by revolving one
drum and holding the other stationary.
Any other equivalent arrangement of gearing may be employed to connect the
traversing wheel with the two sheaves.
The arrangement of the chain or rope may be modified and it may be passed
more than once round the sheaves or it may not pass completely round the
sheaves and guide pulleys or their equivalent may be employed to guide the
rope.
Dated this 15th day of November 1898.
SAMnry
DRACUT & NOWELL,
Patent Agents, Bradford.

page_text: Improvements in Apparatus for Raising, Lowering and Traversing or
Transporting Loads.
I, ERNEST ORLANDO PUDDEPHATг, 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 performed, to be particularly described and ascertained in and
by the following statement:—
This invention relates to improvements in that class of apparatus for raising,
lowering and traversing or transporting loads in which a carriage mounted on a
girder, beam or cable or its equivalent is employed, and its object is to facilitate
and expedite the movements or transference of the load.
For this purpose I employ a carriage having two sheaves or pulleys mounted
loosely on the same shaft carried by suitable bearings in the carriage. Concentric
bevel wheels are formed or fixed upon neighbouring faces of the two pulleys and
a disc or wheel hereinafter called the traversing wheel is mounted on the sheave
shaft between the two sheaves. The traversing wheel has one or more bevel
wheels mounted on radial shafts secured to it which bevel wheels are arranged to
- engage the bevel wheels on the sheaves. The periphery of the traversing wheel
is arranged to bear against the underside of the girder or its equivalent and it
may be covered with india-rubber or it may be made with teeth to engage a rack
or the like on the girder. The carriage is supported by wheels or runners bear-
⚫ing on the girder. "One or more of these wheels may be driven from the travers-
ing wheel but up to the present I have not found this necessary.
A winch with two drums is used with the apparatus. One end of the rope or
chain is attached to one drum and passes over a pulley fixed at the near end of the
girder, round one of the said sheaves then round a pulley by which the load is
supported, then up again and round the other sheave and then round a pulley
at the other end of the girder and back over another pulley at the near end of the
girder down to the other drum of the winch.
The winch is provided with suitable clutches or their equivalent and is so
constructed and arranged that both the drums may be driven in the same
direction, or either or both be reversed or either of them be stopped.
To raise the load both the winch drums are driven in the direction required to
wind the chain or rope thereon and to lower the load the winch drums are both
reversed. To traverse the load the two drums are driven in opposite directions
so that the rope or chain is unwound off one whilst it is wound onto the other
the direction in which the drums revolve determines the direction of the traverse.
Or the load may be lowered and traversed at the same time by revolving one
drum and holding the other stationary.
To fully describe my invention reference is made to the accompanying sheets
of drawings forming a part of this specification in which similar figures of
reference indicate corresponding parts in each of the figures.
Figure 1, is an elevation of my improved apparatus in which the girder is
fixed to the roofing beams of a warehouse and the winch is located above.
Figure 2, is a diagrammatic view clearly showing the manner in which the
rope or chain is arranged.
Figure 3, is a side view of the carriage on a larger scale, and Figure 4, is a
Bection of the same.
Figure 5, is a separate side view of the traversing wheel and Figure 6, is a front
Tiew of the same.
Figure 7, is a front view of the apparatus applied to a rope or cable instead of a
girder.

page_text: The girder 2 is shown fixed to the beam 3 in a horizontal position but it can be
fixed at any angle between the position shown and an approximately vertical one
without seriously interfering with the efficiency of the apparatus. The carriage
is supported by its runners 4 bearing on the lower flanges 5, 5, of the girder 2
and consists of two side plates 6, 6, suitably connected together by cross stays 7.
The traversing wheel 8 is mounted upon the cross shaft 9 the ends 11 of which are
mounted in adjustable eccentric- bushes 10. By slightly turning these bushes
the pressure of the india-rubber periphery 12 of the wheel against the underside
of the girder 2 can be adjusted. Or the ends 11 of the shaft can be made eccen-
tric and the shaft slightly turned in the bushes to effect the same adjustment.
Bevel wheels 13 are mounted in holes 14 in the wheel 8 upon the radial shafts 15
fixed in such wheel and these wheels engage the bevel wheels 16, 16 fixed to
the sheaves 17 and 18 loosely mounted upon the shaft 9, one on each side of the
wheel 8.
The rope or chain 20 passes from one drum 21 of the winch, under the guide
pulley 22, on the underside of the girder 2, along the sheave 17 round which it
passes and then down under the pulley 23 supporting the load 24, then up again
round the sheave 18 over the guide pulley 25 fixed to the end of the girder, along
under the guide pulley 26 on to the drum 28 of the winch. A weight 29 is per-
manently attached to the pulley 23 to keep the rope 20 under sufficient tension
round the sheaves to traverse the carriage.
Metal discs 30 are loosely mounted on the lower stays 7 between the rope
passing on and off the sheaves to keep the rope passing on to the sheaves out of
contact with the rope passing off and so prevent it chafing.
Any other equivalent arrangement of gearing may be employed to connect the
traversing wheel with the two sheaves.
'
The chain or rope may be passed more than once round the sheaves but I have
not found this necessary.
Whilst raising or lowering the load the sheaves 17 and 18 revolve in opposite
directions consequently the bevel wheels 13 simply turn on their axes and the
traversing wheel 8 is not driven, the carriage therefore remaining stationary.
But to traverse the load the sheaves 17 and 18 are driven in the same direction
this prevents the wheels 13 turning on their axes therefore the traversing wheel
is rotated and the carriage traversed. In this way the load can be lifted whilst
the carriage is in any position and it can be supported at any height whilst it is
traversed in either direction.
A rope cable 40 is shown in Figure 7. In this case two grooved runners 42
are used to support the carriage on the cable instead of the runners 4.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:
1. A carriage adapted to be supported and travel upon a girder or its equivalent
and having a traversing wheel connected by gearing of the type specified to the
sheaves or pulleys also mounted in the carriage, substantially as herein shown
and described.
2. The combination with a carriage constructed substantially as herein shown
and described, of the pulley 23, the guide pulley 25 on the girder or its equivalent
and the rope 20 arranged as herein shown and described.
DRACUP & NOWELL,
Patent Agents, Bradford.