Machine for Bending and Embossing Sheet Metal Page: 4 of 4
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422,109
metal being operated upon rests, thereby per-
mitting any given number of pieces of sheet
metal being uniformly bent and embossed.
The operation is as -follows: When the
5 reciprocating die II is in its lowermost posi-
tion, it stands a short distance above the up-
per edges of the die-plates G and G', the dis-
tance between the die H and the projections
G and G' depending on the thickness of the
ro metal to be operated on. When the driving-
wheel R is set in motion, it imparts by means
of the belt Q and the pulley P a rotary mo-
tion to the shaft N, which by its crank-disk
L and the pitman K imparts a reciprocating
i5 motion to the slide I and the die II. When
the latter is moved upward, the operator
places the sheet metal to be embossed and
bent on the die-plates G4 and GS. the rear
edge of the sheet metal resting against the
20 guide T. Now when the die II moves down-
ward it presses on the sheet metal and bends
the latter downward until the sheet.metal
passes onto the upper edges of the die-plates
G and G', and thus the metal is bent to the
25 segment of a circle the radius of which
can be determined as previously described.
At the same time that the metal is bent it is
embossed to the configuration of the upper
edges of the die-plates G, G', G1, and GI and
30 the lower edge of the reciprocating die H.
Thus it will be seen that the machine accom-
plishes simultaneously two objects-that is,
the curving of the sheet metal and the em-
bossing of the same. As the die-plates G, G',
35 G4, and G8 and the die H are made narrow, as
shown in Figs. 2 and 3, no damage is done to
the metal during the process of bending and
embossing the same. By the employment of
two lower dies and an upper die working be-
40 teen the said lower dies the metal is given
the desired form without inj during it, as it does
not receive a positive anvil blow, there being
no solid body below it.
Having thus fully described my invention, I
45 clainr as new and desire to secure by Letters
Patent-
1. In a machine for bending and embossing
sheet metal, the combination of two spaced
dies, two inclined dies on the outer sides of
50 the spaced dies, and a movable die arranged
above and operating between the spaced dies,
substantially as described.
2. In a machine for bending and embossing
sheet metal, the combination of a movable
55 die, two dies arranged below the movable die
and a distance apart a little greater than the
thickness of the movable die, and two inclinedand adjustable dies, one on the outer side of
each of the spaced dies, substantially as here-
in shown and described. 60
3. In a machine for bending and embossing
sheet metal, the combination, with a recipro-
eating die made of a thin plate, the lower
edge of which is shaped to the design to be
embossed, of die-plates having their upper 65
edges formed to the design to be embossed,
said upper edges being arranged in the seg-
ment of a circle, the said fixed die-plates com-
prising two middle parallel plates, between
which operates the said reciprocating die, and 7o
outer plates inclined toward the inner or mid-
dile plates, substantially as shown and de-
scribed.
4. In a machine for bending and embossing
sheet metal, the combination, with a recipro- 75
cating die made of athin plate, the lower edge
of which is shaped to the design to be em-
bossed, of die-plates having their upper edges
formed to the design to be embossed, said up-
per edges being arranged in the segment of a So
circle, the said fixed die-plates comprising two
middle parallel plates,between which operates
the said reciprocating die, outer plates in-
clined toward the inner or middle plates, and
a vertically-adj ustable block carrying the said 85
middle die-plates, substantially as shown and
described.
5. In a machine for bending and embossing.
sheet metal, the combination, with a recipro-
cating die made of a thin plate, the lower edge 90
of which is shaped to the design to be em-
bossed, of die-plates having their upper edges
formed to the design to be embossed, said tp-
per edges being arranged in the segment of a
circle, the said fixed die-plates comprising o9
two middle parallel plates, between which op-
erates said reciprocating die, outer plates il.
clined toward the inner or middle plates, and
means, substantially as descri' d, for adjust-
ing the said outer die-plates, as set forth. Too
6. In amachine for bending and embossing
sheet metal, the combination, with a frame
and a vertically-adjustable block carried
thereby, of the spaced die plates G G', thein-
clined die-plates G4 G', the die G'I being on the io5
outer side of the die G and the die GS on the
outer side of die G', the movable die II above
the dies G G', and the adjustable gage-plate
T, secured to the table in rear of the blockD,
substantially as herein shown and described. I to
BENJAMIN J. BAL)VIN, Ji.
Witnesses:
FRANK T. IlooKIs,
D. II. SCOTT.
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Baldwin, Benjamin J., Jr. Machine for Bending and Embossing Sheet Metal, patent, February 25, 1890; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth172304/m1/4/?rotate=90: accessed July 3, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.