A NEW AND USEFUL ALARUM
Year: 1871

page_text: LETTERS PATENT to Ezra Haskell, of New Hampshire, of the United
States of America, for the Invention of "A NEW AND USEFUL ALARUM
"
COMPLETE SPECIFICATION filed by the said Ezra Haskell at the
Office of the Commissioners of Patents, with his Petition and
Declaration, on the 3rd August 1871, pursuant to the 9th Section
of the Patent Law Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, EZRA
HASKELL, of New Hampshire, of the United States of America, send
greeting.
WHEREAS I am in possession of an Invention of "A NEW AND
USEFUL ALARUM PUMP FOR NAVIGABLE VESSELS, APPLICABLE ALSO TO PUMPING
WATER," and have petitioned Her Majesty to grant unto me, my exe-
cutors, administrators, and assigns, Her Royal Letters Patent for the
same, and have made solemn Declaration that I am the true and first
Inventor thereof.

page_text: NOW KNOW YE that I, the said Ezra Haskell, do hereby declare
that the following Complete Specification, under my hand and seal,
fully describes and ascertains the nature of the said Invention, and
in what manner the same is to be performed, in and by the following
statement, reference being had to the accompanying Drawing making
part of this Specification, and of which Figure 1 is a top view; Figure 2
a front elevation; Figure 3 a longitudinal section, and Figure 4 a
transverse section of the said alarum pump or apparatus for sounding an
alarm or giving signal sounds on ship board, and raising water from the
hold of a vessel, or for forcing water for washing a deck, for all or either
of which purposes the apparatus is particularly useful.
The nature of the said Invention consists in a pumping and alarum
apparatus substantially as herein-after described, viz., as composed of
three pump barrels, a piston to each, certain induction and eduction
pipes, an air opening, a stop-cock, certain valves, a fountain, and a steam
whistle and its valve and key, all arranged and to be operated by a
cranked shaft as herein-after explained.
In the Drawing A, B, C, denote three pump barrels arranged in a
row and provided with pistons D, D, D, one to each barrel. Each
piston is pivoted to one of three connecting rods E, E, E, which are
respectively pivoted to three bell cranks a, a, a, of a driving shaft G,
having its journals b, b, supported by bearings c, c, in two standards H, H,
erected on a stand I. A pinion d fixed on the crank shaft G engages
with a gear e of larger diameter and provided with a crank ƒ and
arranged on a stationary shaft g, all as shown. By revolving the crank
the shaft G will be put in revolution so as to indirectly impart to the
several pistons reciprocating vertical movements within the pump
barrels. An induction conduit h leads into the bottom of the middle
pump barrel and communicates by lateral branch pipes i, i, with the
lower parts of the other pump barrels, there being a valve k in each
barrel so as to open upward over the induction entrance. Furthermore
an eduction conduit leads horizontally out of the lower part of the
middle pump barrel and communicates by means of two branch
pipes m, m, with the other pump barrels. A valve n to open outward
is arranged in each of the eduction passages of the pumps.
Figure 5 is a horizontal section of the pump barrels, their eduction
passages or conduits, and the valves thereof. An air drum or fountain H¹
is arranged over the junction of the three eduction conduits and opens

page_text: into the bore of the middle one by means of a pipe o. A whistle I'
provided with a stop valve p fixed to a stem or key q provided with an
elevating spring h¹, all as represented is arranged over and communicates
with the air fountain. Furthermore there is a stop-cock K within the
middle eduction conduit and in advance of its junction with its branch
pipes. There is also at the junction of the three induction pipes a hole
or passager leading laterally out of the bore of the middle of such
induction conduits.
When the apparatus is to be used for pumping water the hole r is to
be stopped by a plug, and the stop-cock K is to be open, but when
employed for sounding the alarm whistle or giving signals thereby the
said hole r is to be open and the stop-cock K is to be closed.
When the fountain contains compressed air a downward pressure on
the valve stem or key so as to force the valve off its seat will enable
the air by its expansive power to pass into and blow the whistle, the
spring on the valve stem serving to restore or aid in restoring the valve
to its seat on the power employed to depress the valve stem or key being
removed therefrom.
I claim as my Invention the improved pumping and alarum apparatus
constructed substantially in manner and to operate as described, viz. of
the three pump barrels A, B, C, their pistons D, induction and eduction
pipes h, i, l, m, air opening r, stop-cock K, valves k, air fountain H¹,
steam whistle I³, and its valve p and key q all arranged in manner and
to be operated by a crank shaft, as set forth.
Dated this Fifth day of July, A.D. 1871.
EZRA HASKELL.
(L.S.)