IMPROVEMENTS IN PUMPS FOR LIFTING AND FORCING WATER OR OTHER LIQUIDS
Year: 1885

page_text: other Liquids
I, JOHN GRANTHAM of 4, Market Street Blyth in the County of Northumber-
land, Plumber do hereby declare the nature of my invention for IMPROVEMENTS IN
PUMPS FOR LIFTING AND FORCING WATER OR OTHER LIQUIDS to be as follows
-
Whereby the pump chamber always contains water or liquid, and does not
require continuous priming when the valves are defective
My Improvement consists of an air passage from the pump chamber to the tail
or supply pipe in a lift pump, and by an air passage from the discharge pipe
through pump chamber or otherwise to the tail or supply pipe in a lift and force
pump and is so arranged that when the pumps are in motion the water or liquid
rises closing the passage and preventing the admission of air
When the pumps are motionless the water or liquid escapes by the said passage
or defective clacks until the air is admitted by the said passage when the tail,
supply, or discharge pipe discharges itself from the water or liquid it contained
and leaves sufficient water or liquid to remain to cover the clack or clacks for
starting without priming
The pumps are constructed with a casing surrounding the chamber and clacks
with its supply pipe entering there into above the clacks in any position, or by a
pipe fixed to the bottom of the pump and so rising in any form above the pump
clacks for the purpose of leaving sufficient water or liquid to remain in the chamber
to cover the clack or clacks after the tail pipe is discharged from its contents by
the action which takes place by the admission of the air through the said air
passage
I also may fix a valve or clack in the tail or supply pipe for retaining the water
or liquid in the pipes without prejudicing the action of retaining the water or liquid
in the pump chamber as described
The said invention can also be applied to any existing lift or force pump

page_text: other Liquids.
I, JOHN GRANTHAM of 4, Market Street, Blyth in the County of Northumber-
land, Plumber, do hereby declare the nature of my invention for IMPROVEMENTS IN
PUMPS FOR LIFTING AND FORCING WATER, OR OTHER LIQUIDS and in what manner
the same is to be performed, to be particularly described and ascertained in and by
the following statement
-
My improvement consists of an air passage from the pump chamber to the tail,
or supply pipe, in a lift pump, and by an air passage from the discharge pipo
through the pump chamber, or otherwise, to the tail, or supply pipe, in a lift and
force pump, and is so arranged that when the pumps are in motion the water or
liquid, rises closing the air passage, and preventing the admission of air, when the
pumps are motionless the water, or liquid, escapes by the said passage, or defective
clacks, until the air is admitted by the said passage, when the tail, or supply, or
discharge pipe, discharges itself of the water, or liquid, it contained, and leaves
sufficient water, or liquid, remaining to cover the clack, or clacks, for re-starting
without priming
The pumps are constructed with a casing surrounding the chamber, and clacks,
with the supply pipe entering thereinto above the clacks in any position, or by a
pipe fixed to the bottom of the pump, and so rising in any form above the pump
clacks, for the purpose of leaving sufficient water, or liquid to remain in the chamber
to cover the clack or clacks, after the tail pipe is discharged of its contents by the
action which takes place by the admission of the air through the said air passage
I also may fix a valve, or clack, in the tail, or supply pipe without prejudicing
the action of retaining the water in the pump chamber as described.
The said invention can also be applied to any existing pump
The above description will be better understood by means of the annexed
drawings, the same fetters of reference being therein used in the different figures.
Fig (1) shows a lift pump
Fig (2) shows a lift and force pump
Fig (3) shows how my invention can be applied to any other pump
A. Figs (1) (2) and (3) show the pump chamber.
B The casing for retaining water and surrounding chamber
O The tail or supply pipe
D. The pump head.
E. The valve for retaining water, or liquid, in tail pipe.
The discharge nina

page_text: Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is
An air passage, or passages, which may be constructed, and arranged, in any
form whatever that will allow the ingress of the atmosphere to have access to the
tail or supply pipe, or pipes, of the said lift, or lift and force pumps, so, that when
the said pumps are motionless the water, or liquid, escapes by the said air passage,
or defective clacks, or valves, until the atmosphere enters the said passage, and
causes the tail pipe, or pipes, to discharge themselves of the water, or liquid con-
tained therein, and leaves sufficient water, or liquid, to remain in the pump
chamber for the purpose of re-starting without priming so, that when the pumps
are in motion, the water, or liquid is so raised that it covers and automatically
seals the said air passage, or passages, which prevents the ingress of the atmosphere
having access to the said tail pipe, or pipes, so that the pumps whether in motion
or motionless, always retain water, or liquid, in the chamber
SADA