Shearing and Punching Machine. Page: 4 of 4
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385,662
end to end, the portion sheared off falling on
the base block on the side of the blades away
from the resting-block, whence it can be easily
removed.
5 If it is desired to operate the machine by
steam or other motor, the pivotal pin of the
cam-disk H is replaced by a shaft having upon
it equal-sized fast and loose pulleys, to which
the belt from the pulley of the motor extends,
'o and to one or the other of which the said belt
is shifted, according as it is desired to oper-
ate the machine or not.
The punching mechanism is as follows:
K K are similar guide- blocks, secured to the
I5 outer surfaces of the standard C and provided
on their inner facing edges with the guide-
grooves k.
L is a die-block having the ribs l on its
side edges moing in theguide-grooves k, and
20 the depending stem or stud l' for insertion in
the corresponding socket of a punching-die.
M isa cam-disk pivoted to the standard B
above the said die block and provided with an
arm, m, having a socket at its end for the in-
25 sertion of the operating-lever. The said disk
bears upon the upper end of the die-block and
is connected to said block by the pivoted link-
bar N, so that the block rises and falls with
the cam-disk.
30 O is a bed-block fitting and sliding in the
groove D, and provided with openings o, hav-
ing contours similar to those of the cross-sec-
tions of the dies used. The proper one of
these openings is moved to register with the
35 opening d, and the punching-die brought
down by the means described upon the metal
resting on the bed-block O, the punchings
falling through the openings o and d.
If desired, the punching-die may be oper-
to ated by a motor by means of mechanism simni-
lar to that described to operate the shears.
Havingdescribed myinvention, Iclaim-
1. The combination of the base-blocks, the
standards B B, rising from opposite edges of
45 one end thereof,the standard C, rising from the
opposite end of said block, the blade resting
in agroove in the upper side of the bed-block
and having its outer end rendered vertically
adjustable by means of long wedges inserted
50 in thegroove under the same, the head-block
pivoted at one end between the legs of the
standard C and with the other end betweenthe standards B B, the spring secured at one
end to the standard C and having its other end
attached to the upper edge of the head-block 55
by a link and staple, and the cam-disk piv-
oted between the standards B and provided
with an arm socketed at its end for the attach-
ment of an operating-lever, substantially as
specified. 60
2. The combination, with the base-block A,
the standards B B and C, the adjustable blade
E, the head-block f, having the blade F at-
tached, the spring G, lifting the head-block,
and the cam-disk H, moving the head-block 65
downward, of the resting-block I, secured to
the base-block A, and the bar i, movedby mech-
anism, substantially as described, between
guide-pieces attached to the standard for the
purposeofclasping the metal plate to be oper- 70
ated on between itself and the resting-block,
as specified.
3. The combination, with the pivoted head-
block, the spring lifting the same, the cam-
disk depressing said block, the blade attached 75
to the bed-block,and the blade attached to the
head block, of the resting-block I, the bar
i,having its ends turned up at right angles,the
guide pieces i', secured to the standards, the
curved cams J,having the flatedge portions3 80
and the armsj', the bar j,connecting the ends
of said arms, and the linksj, connecting said
curved cams and the bar i, substantially as
specified.
4. The combination, with the bed-block hav- 85
ing the groove D, and the opening d in said
groove, and the standard C, rising from said
block,of the guide blocks K, having the guide-
grooves k, the die-b'ock L, having the guide-
ribs l and stem or stud l', for attachment of 90
the die,the cam-disk M, provided with the arm
m, socketed at its end for the attachment of
an operating-lever, the link-bar N, and the
bed-block O, resting in the groove D and pro-
vided with the openings o, substantially as 95
specified.
In testimony that I claim the foregoing as my
own i have hereto affixedmy name in presence
of two witnesses.
CIRISTAPHOR COLUIBUS ECHIOLS.
Witnesses:
W. T. FARMER,
JNO. DENSON.
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Echols, Christaphor Columbus. Shearing and Punching Machine., patent, July 3, 1888; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth171791/m1/4/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.