Improvemen relating шро.
Year: 1896

page_text: Improvemen
relating
шро.
I, ROBERT NIMMо, of 13 Regent Street, Rutherglen, Lanarkshire, Mechanical
Engineer, do hereby declare the nature of my invention to be as follows:-
This Invention has reference to improvements in and relating to pumps suitable
for pumping or lifting water in mines, docks, ships, or the like.
According to my improvements I fit a water chest on a suitable framework at
the part of the mine or place from which the water is to be pumped. The lower
end of this chest would be fitted with a stuffing cover, and the inner surface of cover
would have a crosshead stop for a valve spindle to work up through, the lower end
of valve being formed with a feather which works through a central water inlet
hole formed in cover. A hollow piston and its hollow rod would reciprocate in the
top part of chest and the rod pass out through a stuffing box in top cover of chest
and be connected to a reciprocating vertical pipe through which the water would be
pumped, and this hollow piston would be fitted with a central valve which would
close against an upper seat on the upstroke of piston and pipe and open on the
downstroke of same so that water may be pumped at both reciprocations. A branch
connection would be taken from the central part of chest below the piston to
another chest fitted with a lift valve and having a pipe connection from its lower
end to the well of mine.
The top end of vertical pipe would deliver the pumped water into a cistern
carried on vertical columns or other supports. Duplex counterbalance levers
would be mounted near the top end of vertical pipe below the cistern.
These levers would be formed of U-shape at teir adjacent ends and be coupled
together, leaving a hollow space for the vertical pipe to pass through; and the
coupled levers would be formed with projecting studs or trunnions to oscillate in
bearing brackets carried by framework. Links would be attached at their upper
ends to the coupled levers and have their lower ends attached to studs which are
secured to the vertical pipe, so that as the levers alternately rise and fall the
vertical pipe will be reciprocated a certain distance up and down. Chests or vessels
would be adjustably mounted on each of the levers, being preferably secured by the
levers passing through a slotted crosshead in vessel, and fixed by a pin passing
through any one of a series of holes in lever. These vessels would be formed with
holes in their lower end over which a valve would work, said valve preferably con-
sisting of a cross piece bearing over the holes and formed with a central weighted
stem which would project down below vessel, and come in contact with a stop pro-
jection which would raise the valves and empty the vessels of water when the
vessel descended to a certain level. Tubes would convey water from ports in the
cistern to each of these vessels when in their upper positions, and these ports would
be fitted with valves. A projecting arm on the top end of vertical pipe would act.
on a stop on the spindle of one of the valves and raise it from its seat on the upward
reciprocation of the vertical pipe; while on the downward reciprocation of pipe a

page_text: stop on this arm would act on the end of a lever connected to the spindle of the
other valve which would thus be raised off its seat.
By this arrangement of pump, water would flow from filled cistern alternately to
each of the vessels on counterbalance levers to operate these, and the reciprocating
motion be thus given to the vertical rod to perform the pumping operations, a
double action taking place through the duplex chests at bottom of mine so that
water is pumped both in the upward and downward strokes of vertical pipe.
One or more additional sets of these counterbalance levers may be attached to
vertical rod, and those at the lower part of pipe would have their cisterns supplied
from the "workings" and so start the action of pump. Or the starting action may
be given to pump by fitting a cylinder and piston or small engine at the upper end
of vertical pipe.
Dated this 21st day of October. 1896
W. R. M. THOMSON & Co.,
96 Buchanan Street, Glasgow, Agents.
Improvements in and relating to Pumps.
I, ROBERT NIMMо, of 13 Regent Street, Rutherglen, Lanarkshire, Mechanical
Engineer, do hereby declare the nature of my Invention and in what manner the
same is to be performed to be particularly described and ascertained in and by the
following statement, that is to say:
This Invention has reference to improvements in and relating to pumps suitable
for pumping or lifting water in mines, docks, ships, or the like.
And in order that my said Invention and the manner of carrying same into
practice may be properly understood, I have hereunto appended two sheets of
explanatory drawings in which the same reference letters are used to denote corres-
ponding parts in all the figures where shown. Figures 1 and 2 are an elevation and
plan view respectively of a mine pump as constructed and arranged according to
my improvements; and Figures 3 and 4 are corresponding views at right angles
to that shown in Figures 1 and 2. Figures 5 and 6 are a detached elevation and
plan view respectively of the upper portion of the pump, and Figure 7 a detached
sectional elevation of the lower portion of the pump.
Referring to these Drawings:-
According to my improvements I fit a water chest A on a suitable framework at
the part of the mine or place from which the water is to be pumped. The lower
end of this chest A would be fitted with a cover A¹ and with a valve seat A² and
crosshead stop A3 for a valve spindle a¹ to work up through, the lower end of
valve a being formed with a feather a which works through a central water inlet
hole formed in seat A³. A hollow piston B' formed in one with its hollow rod B
would reciprocate in the top part of chest A and the rod B pass out through a
stuffing box 13 in top cover of chest A and be connected to a reciprocating vertical
pipe B³ through which the water would be pumped, and this hollow piston B B
would be fitted with a central valve b. A branch connection C would be taken
from the central part of chest A to another chest C fitted with a lift valve C³ and
having a pipe connection C from its lower end to the well of mine.
The top end of vertical pipe B³ would deliver the pumped water into a cistern E
carried on vertical columns E or other supports. Duplex counterbalance
levers d d would be mounted near the top end of vertical pipe B3 below the
cistern E.
These levers d d would be formed of U-shape at their adjacent ends and be 5

page_text: coupled together, leaving a hollow space for the vertical pipe B3 to pass through,
and the coupled levers would be formed with projecting studs or trunnions to
oscillate in bearing brackets carried by framework. Links d³ would be attached
at their upper ends to the coupled levers d d and have their lower ends attached
to studs which are secured to the vertical pipe B3 so that as the levers alter-
nately rise and fall the vertical pipe 13 will be reciprocated a certain distance up
and down. Chests or vessel; I would be adjustably mounted on each of the
levers d d being preferably secured by the levers passing through a slotted cross-
head D in vessels D and fixed by a pin passing through any one of a series of holes
in lever. These vessels D would be formed with holes D3 in their lower end over
which a valve would work said valve preferably consisting of a cross piece D
bearing over the holes D³ and formed with a central weighted stem D which would
project down below vessels 1) and come in contact with a stop projection such as D5
which would raise the valves D2 and empty the vessels D of water when the vessel
descended to a certain level. Tubes would convey water from ports E2 in the
cistern E to each of these vessels D when in their upper positions, and these ports
would be fitted with valves E3. A projecting arm e on the top end of vertical
pipe B3 would act on a stop E on the spindle E of one of the valves E3 and raise
it from its seat F on the upward reciprocation of the vertical pipe 13 while on the
downward reciprocation of pipe 13 a stop el on it would act on the end of a lever e³
fulcrumed on a rod e and connected by a link e3 to the spindle 1 of the other
valve E3 which would thus be raised off its seat E².
By this arrangement of pump, water would flow from the filled cistern E alter-
nately to each of the vessels D on counterbalance levers d d¹ to operate these, and
the reciprocating motion be thus given to the vertical rod B3 to perform the pump-
ing operations, a double action taking place through the duplex chests A and C
at bottom of mine so that water is pumped both in the upward and downward
strokes of vertical pipe B³.
Que or more additional sets of these counterbalance levers d d may be attached
to vertical rod B3 and those as shown in the drawings at the lower part of pipe 13
would have their cisterns supplied from the "Workings" and so start the action of
pump. But the starting action would preferably be given to pump by fitting a
cylinder F and piston F or small engine at the upper part of vertical pipe B³ and
this cylinder F may be portably coupled to the framework and have its piston
mounted on the rod B³, and be fitted with a fluid regulating valve operated through
the spindle X and lever X' from the pump rod B3 the steam or fluid being led to
the cylinder by flexible or other piping. And this engine F F may be continu-
ously worked in combination with the action of the pumped up water.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed I declare that what I
claim is:-
First. The herein described method of pumping water by utilizing the water to
give a reciprocating action to pump rod, substantially as herein described in refer-
ence to and shown in the accompanying drawings.
Second. The arrangement of pump substantially as herein described in reference
to and shown in the accompanying drawings.
Dated the 21st day of July 1897
W. R. M. THOMSON & Co.,
96 Buchanan Street, Glasgow, Agents.