Year: 1887

page_text: Date of Application, 25th Jan., 1887
Complete Left, 19th Oct., 1887
Complete Accepted, 22nd Nov., 1887
I, EDWARD BAYZAND ELLINGTON of Palace Chambers, Bridge Street, Westminster
in the County of Middlesex, Engineer do hereby declare the nature of this invention
to be as follows:-
In my Specification No. 4269 of 1880 I described an arrangement of cylinders
wherein water under pressure from an accumulator or reservoir acts so as to move
pistons or plungers, these in their turn giving or relieving pressure in the cylinder of
a lift so as to raise or lower the cage, provision being thus made for working the lift
at a pressure different from that of the supply, and for compensating for the weight
to be lifted or part thereof:
My present invention relates to a compact and simple arrangement of the cylinders
for this purpose. I fix vertically a cylinder open at the top and connected at the
bottom by a pipe to the lift cylinder. Around this cylinder I fit with packing to
move upon it up or down a second cylinder which is loaded with weight sufficient to
counterpoise so much of the load as may be desired. Within this second cylinder I
fix to its cover a third cylinder which is closed at the bottom and is free to move up
and down within but without touching the cylinder first mentioned. Through packing
in the cover of the second cylinder and into the third cylinder extends a fixed tubular
plunger which communicates with the valve box by which water under pressure can
be admitted to the third cylinder or water can be discharged therefrom. When water
under pressure is admitted by the fixed tubular plunger into the third cylinder it
and the second cylinder to which it is attached descend, forcing water from the first
cylinder into the lift cylinder and so causing its ram to ascend raising the cage of the
lift. When the water is allowed to flow away by the tubular plunger from the third
cylinder, the lift ram and its load descending force water from the lift cylinder into
the first cylinder thereby raising the second and third cylinders and the counterpoise
thereon. Instead of fitting the second cylinder to work with packing along the first
cylinder as a plunger, the upper end of the first cylinder may be made as a piston
with packing working within the second cylinder. And similarly, the tubular plunger
may terminate in a pision working within the third cylinder.
Dated this 25th day of January 1887.
ABEL & IMRAY,
Agents for the Applicant.

page_text: An Improvement in Hydraulic Luts.
I, EDWARD BAYZAND ELLINGTON of Palace Chambers Bridge Street Westminster
in the County of Middlesex 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 :-
In my Specifications No. 4269 of 1880 I described an, arrangement of cylinders
wherein water under pressure from an accumulator or reservoir acts so as to move
pistons or plungers, these in their turn giving or relieving pressure in the cylinder
of a lift so as to raise or lower the cage, provision being thus made for working the
lift at a pressure different from that of the supply, and for compensating for the
weight to be lifted or part thereof.
My present invention relates to a compact and simple arrangement of the cylinders
for this purposo, as I will describe referring to the accompanying drawings. Fig. 1
is a vertical section of cylinders arranged according to my invention. I fix vertically
a cylinder A open at the top and connected at the bottom by a pipe B to the lift
cylinder. Around the cylinder A I fit with packing to move upon it up or down a
second cylinder C which is loaded with weights D sufficient to counterpoise so much
of the load as may be desired. Within this second cylinder C I fix to its cover a third
cylinder E which is closed at the bottom and is free to move up and down within
but without touching the cylinder A first mentioned. Through packing in the cover
of the second cylinder C, and into the third cylinder E extends a fixed tubular
plunger F which communicates by a pipe G with the valve box by which water under
pressure can be admitted to the third cylinder E or water can be discharged there-
from. When water under pressure is admitted by the fixed tubular plunger Finto
the third cylinder E it and the second cylinder C to which it is attached descend
forcing water from the first cylinder A by the pipe B into the lift cylinder and so
When the water is allowed
causing its plunger to ascend raising the cage of the lift.
to flow away by the tubular plunger F from the third cylinder E, the lift plunger
and its load descending force water from the lift cylinder by the pipe B into the first
cylinder A thereby raising the second and third cylinders C and E and the counter-
poise D. Instead of fitting the second cylinder U to work with packing along the
first cylinder A as a plunger, the upper end of the first cylinder A may be made as
a piston with packing working within the second cylinder (. And similarly the
tubular plunger F may terminate in a piston working within the third cylinder E.
This modification is shewn in Fig. 2 where the cylinder A is made with a packed
piston head a and the tubular plunger F is also made with a packed piston end f.
Having now particularly described and ascertained the nature of this invention
ani in what manner the same is to be performed, 1 declare that what I claim is :-
In combination with the cylinder of a hydraulic lift a stationary cylinder com-
municating therewith and having outside and inside of it a pair of moving cylinders,
loaded, the inner of the two cylinders communicating by a stationary tubular plunger
with the supply and discharge valve box, substantially as described.
Dated this 18th day of October 1887.
ABEL & IMRAY,
Agents for the Applicant.