The Sun.
London, England, 1840-05-18 00:00:00

PUMPS.

NORWICH AGAINST ALL ENGLAND, TEN POUNDS
TO A CROWN.
SHALDER'S FOUNTAIN PUMPS.
The most powerful in the world, with which a man of
ten stone weight can raise an imperial barrel of water forty-
three feet high in a minute, but with no other PUtriP yet tried
in a minute and a-half. Their practical gain is most extraor-
dinai7, seldom below 70, and more frequently above 100 per
ant., taking the average of the results of every altitude from
1 foot to 100 feet high. This remarkable gain in the art of
raising water was effected in the simplest manner possible,
being merely by substituting a rolling instead of a sliding prin-
ciple for Pumps, by which their friction and leakage was abo-
lished, after the tens of thousands of bootless attempts that had
been made by the ablest mechanics in the world for 2,000 years.
Far a long time after this immortal invention was publicly
introduced, a host of bullying novices insulted society by pre-
dicting that it would prove limited and frail, who are now
anivellii.g about that their trade would be ruined, because
Fountain Pumps prove 300 per cent the most durable, whe-
ther used by the power of man, horse, or steam, and they are
se economical and invariable in their action, that they corn-
Inertly perform for maltsters, brewers, and dyers for years with.
cut the least expense or the slightest variation. Also, so re-
markably simple, that smiths, millwrights, wheelwrights, car-
penters, &e., as well as hydraulic engineers, successfully un-
dertake their fixing and reparation, neither are Fountain
Pumps retarded, choked, nor injured by occasionally delivering
a few tons of sand, although a very little of that material soon
deranges and seriously damages tho best Friction Pumps. Slowly
indeed, the art of raising water approached perfection 4,000
]ears ago. The beautiful Miss Rebecca brought up water from
a well in a pitcher upon her shoulder for her sweetheart's
camels.

Since then appeared the four principles, namely, two limited,
mad tyre unlimited principles—two .1 them sliding principles;
on• a spiral principle, and one a rolling principle.

I,t. The Chain-pump in action is direct and simple ; but by
friction and leakage ♦ery defective and dreadfully uncertain,
and from its numerous parts highly complicated. The Chain-
pump is a combination of inefficient expensive lumber—a
limited sliding principle.
2d. Archimedes' Screw-pump is founded upon a brilliant
idea; but its applicability is very confined—a limited spiral
principle.

Bd. Tesibies' Pipe and Poker Pump, or the Athenian Squirt.
This is the root and principle of all Piston and Cylinder
Pumps, under every name and modification. All Pumps upon
this plan are of necessity bad beyond remedy, and stupid indeed
mast they be who expect the contrary, because mostly above
two-fifths of the labour employed is entirely wasted by their
friction and leakage, and when accurately tested against the
new principle, always prove to be but contemptible machines.
Nevertheless these imperfect Pumps stood unrivalled for the
Ilast 2,000 years—an unlimited sliding principle.
Otis, and last, Shalder's Pump appeared and made laughing
stock: of the other three Pumps, and exalted the art of raising
water to a science. The Fountain Pump is neither more nor
leg than the Pump made absolute, because without any dis-
coverable defect or imperfection it possesses every essential
property fir the purpose intended in the highest degree.
AN UNLIMITED ROLLING PRINCIPLE.
Dr. Birkbeek. President of the Mechanics' Institution, Lon-
don, says the Fountain Pump is free from the liabilities and
defects of the common Friction Pump, and approaches a perfect
Hydrauie Machine.
The ViLse-President, Professor John Millington, Esq.,
P.L. S., publii`l3ed a work in 1830, and therein makes a rash,
false, feul, and I,Ny assertion, that the new principle is limited,
and although, from its diminished friction it has its advantages
is seme cases, it cannot be used for great elevations Never-
theless, Fountain Pumps prove equally durable for lifts above as
below on. hundred feet. Millington might surely have known
hit flexibility was no proof of frailty, nor rigidity of dm ability.
The rigid teeth of mamma and her four sisters were mostly
tone, but their flexible tongues remained in full activity when
their ages, united with their only brother, exceeded five hun-
dred years. And the Connectors or (flexible Cones) in Foun-
tain Pumps prove also not only surpassing durable, but almost
indestructable.