Improvements in Hydraulic Rams or Water Raisers.
Year: 1894

page_text: Date of Application, 18th Aug., 1894
Complete Specification Left, 18th May, 1895-Accepted, 3rd Aug., 1895
PROVISIONAL SPECIFICATION.
Improvements in Hydraulic Rams or Water Raisers.
We, PAUL DECŒUR, of 81 Boulevard Richard Lenoir, Paris, in the Republic
of France, Civil Engineer, and W. H. BAILEY AND COMPANY LIMITED, of
Albion Works, Salford, in the County of Lancaster, Engineers and Brassfounders,
do hereby declare the nature of this invention to be as follows:-
Our invention relates to improvements in hydraulic rams or water raisers and the
improvements consist in certain novel combinations and arrangements of parts
whereby we avoid waste by reducing the velocity of the current of water passing
through the escape valve and by placing the delivery valves as near as possible to
the escape valve.
In carrying our improvements into effect we employ any suitable number
(according to the size of the ram) of clack or delivery valves which are light and
preferably concave or convex to facilitate lifting from their seats. Small springs
assist in closing these valves and so prevent the return of water in cases of high
pressure, and further by adjusting the tension of these springs the length and
duration of the stroke of the valves can be regulated. The escape or waste
water is conducted by a pipe with a knee or bend in it which plunges into a basin
below and this arrangement allows the ram to be placed at any height and avoids
the re-entrance of air, consequently a double advantage is secured the waste pipe
forming a syphon utilizes all the fall in shallow waters and the elastic cushion in
the air vessel is worked without snifting as sufficient air is admitted round the
valve rod. The air thus admitted re-ascends in the compression chamber, deadens
shocks, and passes into the air vessel at each stroke or pulsation, and the excess of
air escapes through a screwed stopper which forms a snift valve at a point above
the level of the delivery pipe. Too great an emission of air may be avoided by
placing the ram in a basin of sufficient depth to submerge the regulating sleeve or
screwed socket by which the spring is adjusted and the stroke of the valve
determined and the delivery is regulated by screwing this sleeve further up or
down. Two separate springs one placed on the upper and the other on the lower
portion of the valve rod may be employed to insure the lifting of the escape valve
after each pulsation and a third spring arranged to act at the moment when the
valve closes is necessary when the pressure at the delivery is feeble. The lowest
spring bears upon a starting and regulating lever which can be raised to start the ram
and then set by means of a screw or equivalent so as to regulate the resistance of
the spring and consequently increase or diminish the delivery.
For large rams we prefer to use a ring shaped valve of large diameter which
opens by a vertical movement in a grating box placed on the inlet pipe. The
regulating springs for the valve are placed above the air vessel and connected by
means of a sliding fraine.
Dated this 17th day of August 1894.
H. B. BARLOW & GILLETT,
Agents for Applicants.

page_text: Improvements in Hydraulic Rams or Water Raisers.
We, PAUL DECŒUR, of 81 Boulevard Richard Lenoir, Paris, in the Republic
of France, Civil Engineer, and W. H. BAILEY AND COMPANY LIMITED, of
Albion Works, Salford, in the County of Lancaster, Engineers and Brassfounders,
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 :-
Our invention relates to improvements in hydraulic rams and the improvements.
consist in certain novel combinations and arrangements of parts whereby we avoid
waste by reducing the velocity of the current of water passing through the escape
valve and by placing the delivery valves as near as possible to the escape valve.
And in order that our invention may be fully understood and readily carried into
effect we will describe the accompanying two sheets of drawings reference being
had to the figures and letters marked thereon.
Fig. 1 is an elevation and Fig. 2 a sectional elevation of a water raiser embodying
our improvements and
Fig. 3 is a plan of the valve box.
Fig. 4 is a vertical section of a ram for large deliveries fitted with an alternative
arrangement of valve and
Fig. 5 is a sertional plan taken on the line A B C D, Fig. 4.
Similar letters refer to similar parts throughout the several views.
In Figs. 1 to 3,-a designates the inlet pipe, b the outlet pipe, e the escape or
waste pipe, d the escape valve e the delivery valves, and the air vessel or
compression chamber.
We employ any suitable number (according to the size of the ram) of the clack
or delivery valves e, in the example shown four, which are light and preferably
concave to facilitate lifting from their seats. Small springs g assist in closing
these valves and so prevent the return of water in cases of high pressure. The
tension of these springs g can be adjusted by means of a nut on a screwed
spindle i which holds in position a galleryj in which the spindles of the valves e are
guided so that by adjusting the tension of the springs g the length and duration of
the stroke of the valves e can be regulated.
The escape or waste water is conducted to a basin below, not shown, by the
pipe c with a knee or bend in it which plunges into the said basin and this arrange-
inent allows the ram to be placed at any height and avoids the re-entrance of air,
consequently a double advantage is secured the waste pipe forming a syphon
utilizes all the fall in shallow waters and the elastic cushion in the air vessel is
worked without snifting as sufficient air is admitted round the valve rod.
The air thus admitted passes into the air vessel fat each stroke or pulsation and
the excess of air passes through a screwed stopper k which forms a snift valve at a
point above the delivery pipe b. Too great an inflow of air may be avoided by
placing the ram in a basin of sufficient depth to submerge the regulating sleeve or
screwed socket m by which the tension of the springs no on the rod or spindle d'
of the valve d is adjusted and the stroke of the valve determined, and the delivery
is regulated by screwing this sleeve m further up or down and then retaining it in
position when set by means of the pivoted catch p. Below the end of the
valve rod d' is fulcrummed a starting lever q which can be raised to lift the valve d
into the position shown and so start the ram.
Figs. 4 and 5 illustrate the arrangement of disc or ring shaped valves of large
diameter which we prefer to use for large rams in place of the escape valve d
shown in Figs. 1 to 3. The disc valves opens by a vertical movement in a grating
box a' placed on the top of the inlet pipe a. In this arrangement the regulating

page_text: springs n o for the valve s are placed above the air vesself and are connected to
the valve by means of a sliding frame t. The springs no bear one above and the
other below the cross piece of the sliding frame t and are adjusted by means of
discs u screwed upon a spindle v secured in the top of the vessel f. There are also
light springs w above and springs a below the valves on the connecting rods of the
frame t which rods pass through openings in brackets s¹ secured to the valve s.
In this arrangement also the valves e are shown reversed in position but their
action is substantially the same as in the preceding arrangement.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
1. The several combinations and arrangements of springs and valves substantially
as herein set forth.
2. The general arrangement and combination of parts enbodying our improve-
ments in hydraulic rams or water raisers substantially as herein set forth with
reference to Figs. I
and 3.
3. The general arrangement and combination of parts embodying our improve-
ments in hydraulic rams or water raisers substantially as herein set forth with
reference to Figs. 4 and 5.
Dated this 17th day of May 1895.
H. B. BARLOW & GILLETT,
17 St. Ann's Square, Manchester, Agents for Applicants.