AN IMPROVEMENT IN LEVER PUNCHES, APPLICABLE ALSO TO DIE PRESSES, STAMPS, AND SHEARS
Year: 1872

page_text: LETTERS PATENT to Alfred Vincent Newton, of the Office for Patents,
66, Chancery Lane, in the County of Middlesex, Mechanical
Draughtsman, for the Invention of "AN IMPROVEMENT IN LEVER
PUNCHES, APPLICABLE ALSO TO DIE PRESSES, STAMPS, AND SHEARS."- -A
communication from abroad by Nathan Thompson, of Brooklyn,
in the State of New York, United States of America.
Sealed the 18th May 1872, and dated the 16th February 1872.
PROVISIONAL SPECIFICATION left by the said Alfred Vincent Newton
at the Office of the Commissioners of Patents, with his Petition,
on the 16th February 1872.
I, ALFRED VINCENT NEWTON, of the Office for Patents, 66, Chancery
Lane, in the County of Middlesex, Mechanical Draughtsman, do hereby
declare the nature of the said Invention for "AN IMPROVEMENT IN
LEVER PUNCHES, APPLICABLE ALSO TO DIE PRESSES, STAMPS, AND SHEARS," to be
as follows:-

page_text: bearing of its operating lever, whereby a very powerful or effective
action is obtained. A recess is formed in the fulcrum pin or axle of the
operating lever whereby the above result is obtained, and whereby in the
application of the Invention to a lever punch, die press, or stamp, the
connection between the lever and the tool or punch proper may be
made by a link of very restricted length, the recess in the lever fulcrum
serving to receive the upper end of the punch or tool when the latter
is raised from its work. The lever or its fulcrum may be made to form
a stop to relieve the link of strain when the punch or tool is brought
down to its work. The lever that carries the cutter punch or tool is
fitted with a secondary lever or arm and arranged at such an angle
thereto as to afford increased facility for working the machine or
implement either by hand or by a treadle, or by both, or the one lever
or handle may be used for raising the cutter tool or punch proper, and
the other for bringing it down to its work assisted by means of a weight
or otherwise.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Alfred Vincent Newton in the Great Seal Patent
Office on the 13th August 1872.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ALFRed
VINCENT NEWTON, of the Office for Patents, 66, Chancery Lane, in the
County of Middlesex, Mechanical Draughtsman, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Sixteenth day of February, in the
year of our Lord One thousand eight hundred and seventy-two, in the
thirty-fifth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Alfred Vincent Newton, Her special
licence that I, the said Alfred Vincent Newton, my executors, admi-
nistrators, and assigns, or such others as I, the said Alfred Vincent
Newton, my executors, administrators, and assigns, should at any time
agree with, and no others, from time to time and at all times there-
after during the term therein expressed, should and lawfully might
make, use, exercise, and vend, within the United Kingdom of Great
Britain and Ireland, the Channel Islands, and Isle of Man, an Invention

page_text: for "AN IMPROVEMENT IN LEVER PUNCHES, APPLICABLE ALSO TO DIE PRESSES,
STAMPS, AND SHEARS," being a communication to me from abroad by Nathan
Thompson, of Brooklyn, in the State of New York, United States of
America, upon the condition (amongst others) that I, the said Alfred
Vincent 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 Alfred Vincent 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) :-
This Invention consists in the connection or adaptation of the working
cutter punch or tool proper of the implement or machine to and
within the fulcrum or bearing of its operating lever, whereby a very
> powerful or effective action is obtained.
The Invention also consists in a recessed construction of the fulcrum
or bearing of the operating lever whereby the above result is obtained,
and whereby in the application of the Invention to a lever punch, die
press, or stamp the connection between the said lever and the tool or
punch proper may be made by a link of very restricted length, the
recess in the lever bearing serving to receive the upper end of the
punch or tool when the latter is removed from its work, and whereby
the lever or its bearing may be made to form a stop to relieve the link
of strain when the punch or tool is down to its work.
The Invention furthermore consists in a combination with the lever
that carries the cutter punch or tool of a secondary lever or arm fitted
to the primary lever and arranged in certain relation to the latter,
whereby increased facility is afforded for working the machine or
implement either by hand or treadle, or both, or the one lever may be
5 used for raising the cutter tool or punch proper, and the other for
bringing it down to its work by means of a weight or otherwise.
In the accompanying Drawing, which forms part of the Specification,

page_text: I have shown the invention as adapted to a punch for stamping out
metal blanks.
Fig. 1 represents a side elevation of the lever punch, the lever
which carries the tool or punch proper being in an elevated position.
Fig. 2 is a central vertical section taken transversely to the fulcrum
of the frame of the punch, the lever which carries the tool or punch
proper being in a depressed position; and Fig. 3 is a front view of
the entire punch. Similar letters of reference indicate corresponding
parts throughout the several Figures of the Drawing.
A is the frame of the punch as a whole, formed with a bed portion 6,
which is perforated at c to provide for clearance of the waste or punch
blanks, and is fitted with a cutting or punch plate d. B is the lever
which carries the tool or punch proper C, and which fitting, with
freedom to move throughout its stroke, within an opening e in the
front upper portion of the frame, has its fulcrum or bearing D arranged
to turn in a transverse hole or seat f within the frame. Said bearing D
is cut away or formed with a recess g in it, the same extending one-
fourth the circumference of the bearing, more or less, and into the
bearing as far as or nearly as far as its centre. This recess 9 serves to
admit of the upper end of the punch or tool proper within the bearing D
during the elevation of said tool and whilst being depressed, as clearly
represented in Fig. 1, so that the punch proper C may be attached to
the lever B for the purpose of operating the former by a short link e,
which is pivotted to the lever within the fulcrum or bearing D thereof,
whereby a much slower and more powerful motion is communicated to
the punch C than if the latter were linked to the radial portion of the
lever outside of the fulcrum or bearing of the lever. The shortness of
the link adds materially to the strength of the connection between the
lever and the tool or punch proper; also the lever or its bearing may be
used to act as a stop to relieve the link of strain when the tool is
completing its punching stroke, and the final pinch or pressure be borne
directly by the lever if desired.
The tool or punch proper C may be guided in its travel by a way or
passage through the head portion of the frame.
h
To facilitate the working of the implement as a whole the primary 3
or punch operating lever B, which may have its motion restricted from
a vertical to a horizontal position, or thereabouts, has fitted to or

page_text: socketted within it an arm or secondary lever G arranged to occupy a
position which approximates a right angle relatively to the lever B, and
so that the lever G projects in rear of the lever B when the latter is
raised. By this arrangement of duplicate levers increased facility is
afforded for working the machine or implement by both hands, or by
two operatives, or by treadle, or by hand and treadle combined, or the
one lever may be used for raising the tool proper and the other for
bringing it down to its work by means of a weight or otherwise.
A like construction of parts applies in adapting the Invention to a
shears, the working cutter being attached to or connected with its
operating lever B in a like manner, that is, within the fulcrum or
bearing of said lever, but preferably without the intervention of a
link.
Having now setforth the nature of the Invention of "an Improvement
in Lever Punches, applicable also to Die Presses, Stamps, and Sshears,"
as communicated to me by my foreign correspondent, and explained the
manner of carrying the same into effect, I wish it to be understood
that under the above in part recited Letters Patent I claim,-
First. Operating the working cutter punch or tool proper by means
of a lever having a recess within its fulcrum or bearing, substantially as
and for the purpose specified.
Second. The recessed bearing D of the operating lever B in com-
bination with the link E and tool or punch C, essentially as herein
described.
Third. The combination of the secondary arm or lever G with the
operating lever B and tool C carried by the latter, the whole being
arranged in relation with each other substantially as specified.
In witness whereof, I, the said Alfred Vincent Newton, have
hereunto set my hand and seal, the Ninth day of August,
in the year of our Lord One thousand eight hundred and seventy-