IMPROVEMENTS IN APPARATUS POR EFFECTING THE OPERATIONS OF PUNCHING, RIVETTING, AND SHEARING
Year: 1855

page_text: PROVISIONAL SPECIFICATION left by the said Robert Cook at the
Office of the Commissioners of Patents, with his Petition, on the
2nd November 1855.
I, ROBERT COOK, of Glasgow, in the County of Lanark, N.B., Engineer,
do hereby declare the nature of the said Invention for "IMPROVEMENTS
IN APPARATUS POR EFFECTING THE OPERATIONS OF PUNCHING, RIVETTING, AND
SHEARING," to be as follows:-
The improvements relate to arranging apparatus in which the operations of
punching, rivetting, and shearing are combined or separate.
The piston of a steam cylinder carried by the apparatus acts by a connecting
rod upon a lever arm, affixed to or formed on an axis, upon which are formed
cranks, one of which works the punching and the other the shearing instru-
ment, whilst an eccentric upon the same axis works the rivetting tool; but the
order of working these parts may be varied, and the apparatus need not be
constructed to perform more than any one or more than any two of said three
operations of punching, rivetting, and shearing.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Robert. Cook in the Great Seal Patent Office on the
2nd May 1856.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ROBERT
Cook, of Glasgow, in the County of Lanark, N.B., Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Second day of November, in the year of our
Lord One thousand eight hundred and fifty-five, in the nineteenth year
of Her reign, did, for Herself, Her heirs and successors, give and grant
unto me, the said Robert Cook, Her special licence that I, the said
Róbert Cook, my executors, administrators, and assigns, or such others
as I, the said Robert Cook, 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, 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 APPARATUS FOR EFFECTING THE OPERATIONS OF PUNCHING,
RIVETTING, AND SHEARING," upon the condition (amongst others). that I, the
said Robert Cook, my executors or administrators, by an instrument in
writing under my, or their, or one of their hands and seals, should par-
ticularly 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 Robert Cook, do hereby declare the
nature of my said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:-
:
My Invention has for its object an improved mode of arranging and
combining parts, forming apparatus for effecting the operations of punching,
. shearing, and rivetting iron or other metals.
In carrying out these improvements I prefer that the several operations be
combined in one apparatus or machine; I do not, however, confine myself
thereto, as each may be performed separately; but in either case the move-
ments are obtained by a lever arm operated from a steam cylinder, carried by
and forming part of the apparatus.
But that the nature of my said Invention, and in what manner I carry

page_text: Figs. 1, 2, & 3 show three side views, and Fig. 4, a plan, partly in section,
of apparatus arranged according to my improvements. In each of these
Figures the same letters indicate like parts wherever they occur.
In the side view, Fig. 3, the apparatus is shewn in the act of rivetting a
boiler or other such vessel.
Figs. 5 & 6 show some of the parts separately. a is the steam cylinder,
the form of and mode of operating with which may be varied; but that which
I prefer to employ has a hollow piston rod a¹, the connecting rod a of which
is connected to one end of the lever arm b, affixed to or formed with the axis
or shaft b', and upon which is also formed the eccentric 62, which by straps b³
is connected to the. slide d, carrying the rivetting die d¹, for effecting, in com-
bination with the "holder on" e, the operation of rivetting. The "holder on "e
is firmly fixed, as shown, to the bed plate of the machine, and sustains, as is
well understood, the counter die e¹.
According to the arrangement shown, the eccentrics are formed upon the
enlarged end of the lever arm b, which is affixed to the shaft b' by keys; but
these details may be varied.
The shaft or axis 6' is securely held with a capability of partial rotation in
the main framing, as shown. c is the punch holder, which is capable of sliding
freely in guides, carried by the framing of the apparatus, and it is operated by
means of a stud c', placed eccentrically in that end of the shaft or axis b¹; and
in the other end of this shaft or axis 6' is affixed another pin f¹, also placed
eccentrically of that shaft, for the purpose of operating the upper cutter f² of
the shears f. g is a rocking shaft, with a handle g¹ for the purpose of effecting
the stopping and starting of the apparatus.
The valves are worked to admit the steam to or cut it off from the cylinder a
by the attendant acting upon the handle g', which is formed with a socket at
one end to take on to the short arm 9%, formed on or affixed to the shaft or
axis g, upon which is formed the arm g³, connected to the rod of the slide valve.
And in order to prevent injury to the parts by the too sudden descent of the
piston in the cylinder after each operation of either or all the instruments is
completed, I at such time admit a small quantity of steam into the cylinder
to act as a cushion or pad to the piston. To one of the straps or rings 63
is attached by pin joint one end of the short link h, the other end of which is

page_text: attached to the upper end of the lever arm i, affixed to one end of the axis ³, at
the other end of which is affixed the arm 2, to which by pin joint is connected
one end of the rod j, and in the lower end of this rod j is formed a slot j³, to
receive a pin from a short arm k from the axis g; and the parts are so arranged
that the arm may be operated upon to admit a small quantity of steam to
the cylinder just before the piston descends to the bottom: of its stroke,
and then to stop it off again; the steam thus admitted acts as a cushion to
the piston.
k
Having thus described the nature of my said Invention; and in what manner
the same is to be carried into effect, I would have it understood that I do not
confine myself to the precise details shown, so long as the peculiar character
of my Invention be retained; but what I do claim is, .the mode of arranging
and combining apparatus for effecting the operations of punching, rivetting,
and shearing, and the giving motion- to such apparatus by a steam cylinder
carried thereby, and operating by a lever arm,.as explained.
In witness whereof, I, the said Robert Cook, have hereunto set my hand
and seal, this Twenty-ninth day of April, in the year of our Lord
One thousand eight hundred and fifty-six.
Witness,
JOHN KELMAN,
of the City of Glasgow, Clerk.
KUBEKI CO
(L.S.)