IMPROVEMENTS IN LIFT AND FORCE PUMPS
Year: 1884

page_text: I WILLIAM ADAIR of Neptune Street, Liverpool in the County of Lancaster,
Engineer, do hereby declare the naturo of my said invention for IMPROVEMENTS IN
LIFT AND FORCE PUMPS, to be as follows:-
The invention relates to that class of pumps for which British Letters Patent
No 1027 of the year 1867 and N° 414 of the year 1876 were granted to mo: that
is to say pumps specially adapted for use on board ship and for raising and forcing
large quantities of water and having the special advantage of lift pumps, of
accessibility of valves and parts and capacity to pass chips and other foreign
matters without choking and of double action.
The main objects are to construct pumps in such manner that they shall be easy
to cast, occupy comparatively small space, be easily fitted on board ship without
necessitating much cutting of the deck or deck beams. The valves are not only
readily accessible and removable but are free from leakage and allow of soundings
to ascertain the depth of water in the ship or well.
In carrying my invention into practice under the first part I construct a pump
with a through way, a cylinder, a chamber and a head. The through way is fitted
with two valves opening towards the head and leads directly from the head to the
suction pipe. The cylinder opens at the bottom into the through way below the
lower valve and is provided with a piston, a valve opening upwards beneath
the said piston, and a fixed or loose cover. When a fixed cover is used guides and
slings for the piston rod may be dispensed with. The chamber opens into the
cylinder above the valve therein and to the head past a valve. The head rises
some distance above the top of the way, cylinder and chamber, and has a discharge
nozzle below its upper edge. For lift pumps the head is open, for force pumps the
head is closed and forms an air vessel.
Under the second part. I make the opening of the chamber into the head
inclined and fit it with a valve, free to oscillate on trunnions fitting in grooves in
the head.
Under the third part I secure the cover of cylinder in position by means of lugs
or slings cast or attached thereto and fitting beneath wing nuts or bolts on
the head.
Under the fourth part. I construct the nozzle with an inclined face so disposed
as to allow of easy access to the valve under the second part.
Dated this fifteenth day of Tonuary 1884

page_text: I WILLIAM ADAIR of Neptune Street, Liverpool in the County of Lancaster
Engineer, do hereby declare the nature of the said invention for IMPROVEMENTS IN
LIFT AND FORCE PUMPS and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement :-
"
The invention relates to that class of pumps for which British Letters Patent
No 1027 of the year 1867 and No 414 of the year 1876 were granted to me:
that is to say pumps specially adapted for use on board ship and for raising and
forcing large quantities of water and having the special advantage of lift pumps, of
accessibility of valves and parts and capacity to pass chips and other foreign matters
without choking, and of double action.
The main objects are to construct pumps in such manner that they shall be easy
io cast occupy comparatively small space, be easily fitted on board ship without
necessitating much cutting of the deck or deck beams. The valves are not only
readily accessible and removable but are free from leakage and allow of soundings
to ascertain the depth of water in the ship or well.
In carrying my invention into practice under the first part I construct a pump
with a through way, a cylinder, a chamber and a head. The through way is fitted
with two valves opening towards the head and leads directly from the head to the
suction pipe. The cylinder opens at the bottom into the through way below the
lower valve and is provided with a piston a-valve opening upwards beneath
the said piston and a fixed or loose cover. When a fixed cover is used guides and
slings for the piston rod may be dispensed with. The chamber opens into the
cylinder above the valve therein and to a head past a valve. The head rises some
distance above the top of the way, cylinder and chamber, and has a discharge
nozzle below its upper edge. For lift pumps the head is open, for force pumps the
head is closed and forms an air vessel.
Under the second part I make the opening of the chamber into the head inclined
and fit it with a valve, free to oscillate on trunnions fitting in grooves in the head.
Under the third part. I secure the cover of cylinder in position by means of
lugs or slings cast or attached thereto and fitting beneath wing nuts or bolts on
the head.
Under the fourth part. I construct the nozzle with an inclined face so disposed
as to allow of easy access to the valve under the second part.
DESCRIPTION ON
DRAWINAN
Fig 1 is an elevation, figs 2 and 3 vertical sections at the lines A A and B B,
fig 3 a plan, and fig 4 a horizontal section at the line C C of a pump constructed
in accordance with my invention.
Fig 6 is a plan, and fig 7 an elevation of the clutch for fastening the cylinder.
The same letters refer to the same parts in all the views, a through way,
cylinder, c chamber all opening directly into the head. The way a leads straight
from the suction pipe to the head. The cylinder communicates at the top through
a passage e and at the bottom through a passage and branch with the through way
the said cylinder also communicates through a passage at bottom above the
passage with the chamber c, h h' suction valves, i, i, delivery valves, i piston,
k piston rod, cylinder cover, m clutch fastening, n lugs, o nozzle. The valves h h' i
are lift valves of any usual construction and rest on seats provided for them as
shown in the throughway a and passage f. The valve i is a hinged flap valve,

page_text: closes the top of the chamber c and is placed in and removed from position by
sliding the hinge pin along the slots p in the nozzle n. The cylinder cover is hel
in position by the prongs of the clutch m which rest upon it. The clutch m rests
on the head of the pump and is secured and detached by causing it to make a
partial revolution and so be beneath or free from the lugs n. The cylinder cover
serves as a guide for the piston rod which is attached in the usual manner to a
connecting rod and crank gear for giving motion to it.
The action of the pump is as follows:-On the down stroke of the piston water
flows up the way a past the valve into the cylinder above the piston and is
forced out through the chamber c past the valve i into the head d. On the
upstroke water is forced out of the cylinder past the valve into the head and is
drawn through the way a and branch past the valve into the cylinder.
The pump is shown as a lift pump but it will be obvious that it may be
converted into a force pump by closing the head d.
Having now particularly described and ascertained the nature of the said
invention I claim -
First. In pumps the combination of a through way a, cylinder b, chamber c, all
opening into a head & substantially as setforth.
Second The combination of the throughway a, cylinder b with valve i' at bottom,
and chamber c all opening into a head substantially as setforth.
Third The combination with the chamber c of the inclined opening and valve i
substantially as setforth.
Fourth. The combination in pumps constructed substantially as hereinbefore
setforth of a cover and clutch m.
Fifth. In pumps constructed substantially as herein before setforth the nozzle o
with inclined face for the purpose setforth.
Dated this 14th day of October 1884.