IMPROVE- MENTS IN HYDRAULIC WINCHES
Year: 1877

page_text: LETTERS PATENT to Edward Bayzand Ellington, of No. 14, Delahay Street,
Westminster, in the County of Middlesex, for the Invention of "IMPROVE-
MENTS IN HYDRAULIC WINCHES."
Scaled the 28th August 1877, and dated the 24th March 1877.
PROVISIONAL SPECIFICATION left by the said Edward Bayzand Ellington
at the Office of the Commissioners of Patents on the 24th March 1877.
EDWARD BAYZAND ELLINGTON, of No. 14, Delahay Street, Westminster, in the
County of Middlesex. "IMPROVEMENTS IN HYDRAULIC WINCHES."
My Invention relates to winches having rope or chain barrels or pullies worked
directly by hydraulic engines. For convenience in the use of such winches in
railway yards, docks, and like situations I construct them in the following man-
ner-On a truck or framing provided with wheels so that it can be readily moved
from place to place I mount a shaft, on which is fixed the barrel or pulley, and I
connect this shaft to the crank shaft of a hydraulic engine which is fixed on the
truck; or preferably, I make the barrel or pulley shaft in one piece with the said
crank shaft. The hydraulic engine may be of any known kind, having attached to
it pieces of flexible or jointed pipe for the supply and discharge of the operating
fluid, so that the supply pipe can be connected by a union to a hydrant on a
pressure main, and the discharge can be led to a drain or general discharge pipe.
For the purpose of readily starting, stopping, or reversing the winch I prefer to
employ an engine having a rotating slide, such as those employed in engines of the
kind known as Brotherhood's three-cylinder engines, and to such an engine I apply
a cock or valve, according to my Invention, whereby I ain enabled readily to start,
stop, or reverse the movement, and also to employ the throttling of the operating
fluid as a resistance or break to regulate the movement caused by a descending
load. The said cock or valve may be made in the form of either a rectlineally
moving or a rotating slide, governing ports which communicate respectively with
the supply and discharge mains, and with the supply and discharge passages of the
engine slide.
In one position of the cock or valve the engine receives its supply and emits its
discharge in the manner suitable for working in the one direction; in another position
гр.... 0.71

page_text: the supply from the main is led to what was in the former case the discharge
passage from the engine, and the discharge from the engine is emitted by the
passage which in the former case received the supply, and thus the movement of the
engine is reversed. There are, besides, intermediate positions of the cock or slide,
such that the discharge from the engine is made to communicate with its supply,
the passage being more or less throttled; and thus when a descending weight tends
to make the engine revolve rapidly in either direction, the several cylinders have
to draw their supply from the discharge of each other, with no additional supply
from the pressure main, and the throttling of the passage by limiting the flow of
the fluid causes it to act as a break, limiting the velocity of rotation of the
engine.
•
The cock or valve above described may obviously be employed in connection
with hydraulic engines working winches, whether those engines and winches bo
mounted, as I have described, on trucks, so as to be moveable, or whether they be
stationary.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Edward Bayzand Ellington in the Great Seal Patent Office on the
18th September 1877.
EDWARD BAYZAND ELLINGTON, of No. 14, Delabay Street, Westminster, in the
"County of Middlesex. "IMPROVEMENTS IN HYDRAULIC WINCHES."
My Invention relates to winches having rope or chain barrels or pullies worked
directly by hydraulic engines. For convenience in the use of such winches in
railway yards, docks, and like situations I construct them in the following man-
nor On a truck or framing provided with wheels, so that it can be readily moved
from place to place, I mount a shaft, on which is fixed the barrel or pulley, and I
connect this shaft to the crank shaft of a hydraulic engine which is fixed on the
truck; or, preferably, I make the barrel or pulley shaft in one piece with the said
crank shaft. The hydraulic engine may be of any known kind, having attached to
it pieces of flexible or jointed pipe for the supply and discharge of the operating
fluid, so that the supply pipe can be connected by a union to a hydrant on a
pressure main, and the discharge can be led to a drain or general discharge pipe.
For the purpose of readily starting, stopping, or reversing the winch I prefer to
employ an engine having a rotating slide, such as those employed in engines of the
kind known as Brotherhood's three-cylinder engines, and to such an engine I apply
a cock or valve according to my Invention, whereby I am enabled readily to start,
stop, or reverse the movement, and also to employ the throttling of the operating
fluid as a resistance or break to regulate the movement caused by a descending load.
The said cock or valve may be made in the form of either a rectilineally moving
or a rotating slide governing ports which communicate respectively with the supply
and discharge mains, and with the supply and discharge passages of the engine
slide.
In one position of the cock or valve the engine receives its supply and emits its
discharge in the manner suitable for working in the one direction; in another posi-
tion the supply from the main is led to what was in the former case the discharge
passage from the engine, and the discharge from the engine is emitted by the
passage which in the former case received the supply, and thus the movement of
the engine is reversed. There are, besides, intermediate positions of the cock or
slide, such that the discharge from the engine is made to communicate with its
supply, the passage being more or less throttled, and thus when a descending
weight tends to make the engine revolve rapidly in either direction, the several
cylinders have to draw their supply from the discharge of each other, with no
additional supply from the pressure main, and the throttling of the passage by

page_text: limiting tho, flow of the, fluid causes it, to act as a break, limiting the velocity of
rotation of the engine.
.!
The cock or valve above described may obviously be employed in connection
with hydraulic engines working winches, whether those engines and winches be
mounted, as I have described, on trucks so as to be moveable, or whether they be
stationary.
"DESCRIPTION OF THE DRAWINGS...
Fig. 1 represents a side view, and Fig. 2 an end view of a hydraulic winch
according to my Invention, the engine employed being of the kind known as
Brotherhood's three-cylinder engine. A is the engine, on the shaft of which is
fixed the barrel B, having at its middle a break wheel C, to which is applied a
flexible break strap D worked by a treadle E. The whole is mounted on a truck F
having wheels G, so that it can readily be moved from place to place. The supply
and discharge pipes H of the engine are connected to a reversing and governing
valve box I, to which a jointed supply pipe J leads from a pressure main and from
which a flexible discharge pipe K leads to any convenient drain.
The construction of the governing and reversing valve in the box I and its
operation in conjunction with the engine slide will be understood by reference to
Fig. 3, which is a longitudinal section of the rotating engine slide; Fig. 3, a back
view of the valve; Fig. 3b, a front view of the facing against which the valve
works; Fig. 4, which is a longitudinal section of the reversing and governing
valve; Fig. 4, a back view of the same, and Fig. 4b, a front view of the facing
against which it works. Although the parts of Fig. 4 are shown detached from
those in Fig. 3, it is to be understood that the ports L and M. of the former are to
be connected by pipes with land m of the latter. There being three cylinders to
the engine, the facing Fig. 3b is made with three ports a, a¹, a³, one of which a' is
shewn in Fig. 3 leading to the outer end of one of the cylinders. The rotating
slide N which revolves with the engine shaft has a passage b through its centre
communicating with one aperture 6¹ on its face, and another passage c through its
side communicating with another aperture c¹ on its face, both these face apertures
being caused by the rotation of the slide N to pass successively over the three ports
co, a¹, a².
The slide is pressed up towards the facing by a caoutchouc ring n
laid in an annular recess in the front face of the slide, and around the slide is a
cavity O communicating by the port I, and a pipe with the port L of the valve box
Fig. 4. The valve P in this box can be turned partly round by means of a handle
, which has a stem p¹ projecting from it so as to come against suitable stops on the
flange of the valve box. Two ports, Q and R, connected to the discharge and
supply pipes respectively lead, the one to an aperture 9 in the cover of the valve
box, and the other to a cavity r surrounding the end of the valve. The passage L
communicates with the latter cavity by a port in the end of the slide, and the
passage M. leads to a three-branched cavity m¹, m³, m³, also in the end of the slide.
When by means of the handle p the valve P is turned to one or other position so
as to open the ports in the valve P to the ports q and L in the cover of the valve
box, the water under pressure which is supplied to work the engine by the pipe J
can be directed to either of the ports, 1 or m, of the engine slide, while the fluid
discharged after working the engine escapes by the other of those ports to the dis-
charge pipe K, and thus the engine can be reversed when required. In another
position of the valve P the supply pipe J is cut off, and the water discharged from
each of the engine cylinders supplies each of the others, and by turning the valve P
more or less out of this position so that the passages L or M are more or less
reduced in area, the working of the engine, when a descending load causes its barrel
to revolve, can be more or less retarded by thus checking the flow of the water.
Having thus described the nature of iny said Invention and in what manner the
same is to be performed, I claim,-
First. Mounting on a truck a winch directly connected to a hydraulic engine,
substantially as and for the purposes herein set forth.

page_text: Second. The use in connection with the supply and discharge pipes of the engine
referred to in the preceding claim, of a valve constructed and arranged substan-
tially as herein described with reference to Figs. 4, 4ª, and 4b of the accompanying
Drawings.
In witness whereof, I, the said Edward Bayzand Ellington, have hereunto set
my hand and seal, this Sixth day of September, in the year of our Lord One
thousand eight hundred and seventy-seven.