IMPROVEMENTS IN ATMOSPHERIC HAMMERS FOR CRUSHING ORES AND OTHER PURPOSES
Year: 1868

page_text: LETTERS PATENT to Henry Edward Newton, of the Office for Patents,
66, Chancery Lane, in the County of Middlesex, Civil Engineer, for
the Invention of "IMPROVEMENTS IN ATMOSPHERIC HAMMERS FOR CRUSHING
ORES AND OTHER PURPOSES."-A communication from abroad by Hiram
Wallace Colver, of Brooklyn, in the State of New York, United
States of America.
Sealed the 27th April 1869, and dated the 24th November 1868..
PROVISIONAL SPECIFICATION left by the said Henry Edward Newton-
at the Office of the Commissioners of Patents, with his Petition, on.
the 24th November 1868.
I, HENRY EDWARD NEWTON, of the Office for Patents, 66, Chancery
Lane, in the County of Middlesex, Civil Engineer, do hereby declare
the nature of the said Invention for "IMPROVEMENTS IN ATMOSPHERIC
HAMMERS FOR CRUSHING ORES AND OTHER PURPOSES," to be as follows:-
This Invention relates to that class of hammers in which a cushion of
confined atmosphere interposes between the lifting and striking power.
and the hammer itself, so that concussion on the actuating mechanism.

page_text: is relieved. I make use of a revolving crank and connecting rod con-
nected to a piston rod, the piston of which is in an air cylinder formed
in the hammer itself; the piston rod passes through a stuffing box, and
hence the confined air in the cylinder above the piston forms a cushion
for lifting the hammer, and the air below the piston forms a cushion
when striking the blow. By this peculiarity of arrangement the
actuating parts can be made much lighter than in atmospheric hammers
.containing an air cylinder that is reciprocated by the crank. A false
bottom is introduced in the cylinder of the hammer, and an inlet air
opening is provided near the middle of the hammer. This hammer
when used for forging is mounted in slides above an anvil. When it is
used for crushing ores, the hammer is guided in and slides loosely
through the top and bottom of a metal box, into which water runs and
issues around the hammer, so as to supply the water to the stamping
trough, and at the same time prevent wear by washing the surface of the
hammer clean where it slides through the box. A range of these
hammers acting successively in the trough containing the ore forms
the ore crushing apparatus, the water carries off the fine particles of
crushed ore through a sieve or screen.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Henry Edward Newton in the Great Seal Patent
Office on the 22nd May 1869.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRY
EDWARD NEWTON, of the Office for Patents, 66, Chancery Lane, in the
County of Middlesex, Civil Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-fourth day of November,
in the year of our Lord One thousand eight hundred and sixty-eight,
in the year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Henry Edward Newton, Her special
licence that I, the said Henry Edward Newton, my executors, adminis-
trators, and assigns, or such others as I, the said Henry Edward Newton,
my executors, administrators, and assigns, should at any time agree
with, and no others, from time to time and at all times thereafter
during the term therein expressed, should and lawfully might make,

page_text: use, exercise, and vend, within the United Kingdom of Great Britain
and Ireland, the Channel Islands, and Isle of Man, an Invention for
"IMPROVEMENTS IN ATMOSPHERIC HAMMERS FOR CRUSHING ORES AND OTHER
PURPOSES," a communication to him from abroad by Hiram Wallace
Colver, of Brooklyn, in the State of New York, United States of
America, upon the condition (amongst others) that I, the said Henry
Edward Newton, my executors or administrators, by an instrument
in writing under my, or their, or one of their hands and seals,
should particularly describe and ascertain the nature of the said.
Invention, and in what manner the same was to be performed, and
cause the same to be filed in the Great Seal Patent Office within six
calendar months next and immediately after the date of the said Letters
Patent.
NOW KNOW YE, that I, the said Henry Edward Newton, do hereby
declare the nature of the said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in and
by the following statement, reference being had to the Drawing here-
unto annexed, and to the letters and figures marked thereon (that is
to say) -
:-
Fig. 1 is a side view of the impi ement applied to a forging hammer,
with parts of the frame in section.
Fig. 2 is an elevation of the improvement applied to an ore crushing
machine, one of the cylinders being in section.
This Invention relates to that class of hammers in which a cushion of
confined atmosphere interposes between the lifting and striking power
and the hammer itself, so that concussion on the actuating mechanisın
is relieved.
A revolving crank a and pitman 6 connected to a piston rod c is
made use of. The piston d of said rod c is in an air cylinder e
formed in the hammer itself; the piston rod passes through a stuffing
box f, and hence the confined air in the cylinder above the piston d
forms a cushion for lifting the hammer h, and the air below the piston d
forms a cushion in striking the blow. By this peculiarity of arrange-
ment the actuating parts can be much lighter than in those atmospheric
hammers containing an air cylinder that is reciprocated by the crank.
A false bottom i is introduced in the cylinder of the hammer, and an
inlet air opening is provided near the middle of the hammer at o. This
hammer when used for forging is mounted in slides k above an anvil t

page_text: as seen in Fig 1. When it is used for crushing ores the hammer is
guided in and slides loosely through a bearing k, below which is a metal
box m, into which water runs and issues around the hammer cylinder e,
so as to supply the water to the stamping trough n, and at the same
time prevent wear by washing the surface of the hammer cylinder clean
where it slides through the bearing k. A range of these hammers acting
successively in the trough containing the ore forms the ore crushing
apparatus, as shown in the elevation, Fig. 2. The water carries off the
fine particles of crushed ore through a sieve or screen p.
It will be understood that this Invention, when used as a forging
hammer, is fitted with a belt and tightener actuated by a treadle, so that
the hammer may remain at rest or be moved with more or less rapidity.
The head of the hammer or stamp and the anvil may be fitted movably,
or dies or punches may be applied to the respective parts.
What is claimed and to be secured by Letters Patent is, the atmo-
spheric hammer with the cylinder and hammer formed together or
attached to each other, and fitted to slide in combination with a piston
and rod that are reciprocated and act by confined atmosphere upon
the hammer to give motion to the same, substantially as set forth; also
supplying water by the box m to the bearing through which the cylinder
slides in the ore crushing machine, substantially as and for the purposes
specified.
In witness whereof, I, the said Henry Edward Newton, have
hereunto set my hand and seal, the Nineteenth day of May,
in the year of our Lord One thousand eight hundred and sixty-
nine.
Witness,
J. W. MOFFATT,
66, Chancery Lane.
H. E. NEWTON: (L.S.)