Improvements in Self-sustaining Apparatus for Lifts and the like.
Year: 1898

page_text: Date of Application, 14th July, 1898
Complete Specification Left. 12th Apr. 1899-Accepted, 14th July, 1899
PROVISIONAL SPECIFICATION.
Improvements in Self-sustaining Apparatus for Lifts and the like.
JOHN EDWARD LUCAS, Engineer, 14, Sandbourne Road, Brockley, do hereby
declare the nature of this invention to be as follows;—
In constructing a lift, hoist or any such like apparatus make the bearing
carrying any one or more of the shafts, with one or more pivots or moveable
centres on either side of the bearing, and in such a manner that the said pivot
or pivots may be placed in any position throughout the length of the bearing,
by this means the shaft can rise or fall to any desired angle out of the horizontal
line, this action allows the load applied to act as a dead weight on the brake
and the load is self sustained, by pulling the shaft in the opposite direction the
load is released and may be raised or lowered at will.
.
JOHN EDWARD LUCAS, Engineer, 7, Vesta Road, Brockley, S.E., late of
14, Sandbourne Road, 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 is applicable either to lift hoists or to a lift with cage and
balance weight.
In constructing a lift with cage and balance weight, I make the bearing A
Fig. 1, carrying any one or more of the shafts 1) with one or more pivots or
moveable centre or centres B on one or both sides of the bearing or in any
position above or below the centre or centrally with corresponding hole or holes
in the block C or fixed part of bearing and in such a manner that the said pivot
or pivots may be placed in any position throughout the length of the bearing A
or I may use one pivot only with a corresponding hole or holes in the block C
so that the shaft I can rise or fall to any desired angle out of the horizontal
line, this action allows the weight of the balance weight and the cage to act as
a dead weight on the brake F and the cage is self sustained, by pulling the
shaft D in the opposite direction (dotted line G G) the cage is released and may
be raised or lowered at will.
In the case of heavy cages I use also an adjustable eye H Fig. 2 (for the
purpose of reducing the pull on the shaft D) to one part of the shaft D with
spring I or spring and lever J or weight or both attached to any part of the
Г7

page_text: eye H through which the shaft D passes to act as a counterweight to the cage
and balance weight, or I may load the hauling wheel K Fig. 1, for the same
purpose, this attachment may be placed on any part of the shaft 1) but preferably
near the hauling wheel K.
It will be understood that I use roller or ball or other bearings for the shaft
or shafts to revolve in and material of any description.
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
The moveable pivot or pivots or centres in connection with bearing and with
or without adjustable eye spring lever or weight or both as before described so
that any load is self sustained and released by simply pulling the hauling rope
or chain or other motive power in either direction.
Datod th 1911
P
1000