New or Improved Die-cutting macun
Year: 1897

page_text: Date of Application, 1st Dec., 1897
Complete Specification Left, 8th Feb., 1898-Accepted, 4th June, 1898
New or Improved Die-cutting macun
I, LUIGI FILIPPO CAMPI, of 572, West Broadway, in the City, County and Stato
of New York, United States of America, Inventor, do hereby declare the nature of
this invention to be as follows: -
My invention relates to an improved machine for cutting trimming dies, the
object being to do this work in a more rapid, economical and perfect manner than
heretofore. This object is attained in part by the use of a pattern which serves
as a guide and prevents the cutting tool from going wrong and enables an unskilled
workman to operate the machine.
My improved machine is illustrated-in-the-accompanying_drawings,_in_which
Figure 1 is a front elevation; Figure 2, a plan, and Figure 3, a transverse section
on the line y of Figure 2. Similar letters refer to similar parts throughout the
several views. The machine proper is supported upon a table (A), having
legs (BB). To this is securely fastened an upright (C), provided with a groove (C¹)
into which is fitted, by a dovetail joint, an arm (D), which is free to move in the
groove (C) from the front to the back of the machine. This arm (1) on its rear
face has a longitudinal groove (D), within which is fitted, by a dovetail joint a
block (E), which moves freely within the groove (D¹) longitudinally of the machine.
A lever (F) having a handle (G) is secured to the table (A) by a universal
joint (H), and by a similar universal joint (I) the said lever is secured near its
upper extremity to a bar (J), which bar is rigidly connected with the block (E)
through an elongated slot (D2) in the arm (D).
Supported upon standards (K) near the four corners of the supporting base is a
series of frames, the lowermost of which (L) is rigidly secured to the standards (K).
The interior edges of the frame (L), running longitudinally of the machine, are
grooved to receive projecting portions upon the underside of the frame (M), which
permits the frame (M) to reciprocate in a longitudinal direction in the grooves of
the frame (L). Upon the upper side of the frame (M) are grooves running in a
transverse direction, and in these are fitted a frame (N), which is thus adapted to
move transversely. To the frame (L) there is secured a screw-threaded rod (m),
the screw threads being adapted to engage with a nut (m²) rigidly secured to the
frame (M). By means of this rod the table (M) is moved longitudinally when
desired. A similar rod (n) and nut (n¹) serve in like manner to move the table (N)
in a transverse direction. The openings in the frames. (L M and N) normally
coincide and are immediately over the block (E). The bar (J) is rigidly
the middle thereof. Upon the right
secured to the block (E)
side of the block there is rigidly supported a tracing point (0) which projects
through the openings in the several tables, and to a point substantially on a level
with the top of the table (N). On the left side of the block (E) there is secured
a milling tool (P). This tool (P) is secured with a chuck (Q) by any usual means.
The chuck (Q) has its bearing in the block (E), and this bearing is tapered slightly
to take up wear.
near
Upon the lower end of the chuck is mounted a pulley (R), to

page_text: which motion is communicated by belt (S) from any suitable source of power.
Since, in the operation of the machine, as will be later explained, the distance
between this pulley (R) and the source of power is continually changed, I have
provided an appliance for taking up the slack of the belt. This appliance is seen
in elevation in Figure 1 and in plan, in Figure 2, and consists of two idler
pulleys (T and T), under which the belt is carried, and which pulleys are mounted
in the movable frame (U), which is pivoted to a support (V), and from the upper
end of the frame near the idlers (T and T¹) is suspended a weight (W), which, when
the belt is slackened, tends to draw down the idler pulleys, and thus tighten the
belt sufficiently to convey power. In order to prevent the belt being thrown off
the pulley (R) when these idlers (T, T¹) are drawn down, I provide another pair
of idlers (Y) between the pulley (R) and the idlers (T, T), over which the belt
runs and which maintains a straight draft of the belt upon the pulley (R); and, for
the like reason, I provide a further pair of idlers (Y*), located between the
idlers (T, T) and the main driving shaft.
Having now described the construction of my machine, I would point out its
mode of operation.
A pattern (Z) is securely fastened to the frame (N) upon the right hand side of
the same and immediately over the tracing point (0), and upon the left-hand side of
the frame (N) is fastened the piece of metal (Z) to be operated upon, a hole or holes
having been first bored through the same, through which the milling tool (P)
rises. The machine being put in operation, the milling tool is caused to revolve,
the operator grasps the handle (G), and by means of same causes the tracing
point (0) to follow the pattern design. The milling tool (P) being moved by the
same handle over an exactly similar path will, by cutting, reproduce in the
metal (Z) exactly the same design as the pattern (Z).
Where the design is a large one and the movement of the tracing point (0) and
the milling tool (P) when operated by the handle (G) is not sufficient to reach all
parts of the design, both pattern (Z) and the metal operated upon (Z) may be moved
relative to the tracing point (0) and milling tool (P) by shifting the frames (M
or N) as necessary. If it is desired to move the work to the right or to the left, then
the frame (M) is moved in the desired direction by turning upon the screw-threaded
rod (m); if the work should be moved toward or away from the operator, then the
frame (N) may be moved by turning the screw-threaded rod (n). Since the
relative position of the design (Z) and the metal (Z) is not changed by these
movements, the operation may be interrupted, the work moved, and the operation
again resumed, without any injurious effect upon the work.
1024
I, LUIGI FILIPPO CAMPI, of 572, West Broadway, in the City, County and State
of New York, Inventor, do hereby declare the nature of my invention for new and
improved die cutting machine, and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following statement:-
My invention relates to an improved machine for cutting trimming dies, the
object being to do this work in a more rapid, economical and perfect manner than
heretofore. This object is attained in part by the use of a pattern which serves

page_text: as a guide and prevents the cutting tool from going wrong and enables an unskilled
workman to operate the machine.
My improved machine is illustrated in the drawings which accompany my
Provisional Specification, and in which Figure 1 is a front elevation, Figure 2 a
plan, and Figure 3 a transverse section on the line x y of Figure 2. Similar letters
refer to similar parts throughout the several views. The machine proper is sup-
ported upon a table (A), having legs (BB). To this is securely fastened an upright
standard (C), provided with a groove (C) into which is fitted by a dove-tail joint an
arm or bracket (D), which is free to move in the groove (C¹) from the front to the
back of the machine. This arm (D) on its rear face has a longitudinal groove (D'),
within which is fitted by a dove-tail joint a block (E), which moves freely within
the groove (D) longitudinally of the machine. A lever (1) having a handle (G) is
secured to the table (A) by a universal joint (H), and by a similar universal
joint (I) the said lever is secured near its upper extremity to a bar (J), which
bar is rigidly connected with the block (E) through an elongated slot (D³) in the
arm (D).
Supported on standards (K) near the four corners of the supporting base is a
series of frames, the lowermost of which (L) is rigidly secured to the standards (K).
The interior edges of the frame (L), running longitudinally of the machine, are
grooved to receive projecting portions upon the under-side of the frame (M), which
permit the frame (M) to reciprocate in a longitudinal direction in the grooves of
the frame (L). Upon the upper side of the frame (M) are grooves running in a
transverse direction, and in these are fitted a frame (N), which is thus adapted to
move transversely. To the-frame-(L)-there-is_secured a screw threaded rod (m),
the screw threads being adapted to engage with a nut (m²) rigidly secured to the
frame (M). By means of this rod the table (M) is moved longitudinally when
desired. A similar rod (n) and nut (n¹) serve in like manner to move the work
supporting table (N) in a transverse direction. The openings in the frames (L M
and N) normally coincide and are immediately over the support or block (E). The
bar (J) is rigidly secured to the block (E) near the middle thereof. Upon the right
side of the block there is rigidly supported a tracing point (0) which projects
through the openings in the several tables, and to a point substantially on a level
with the top of the table (N). On the left side of the block (E) there is secured
a milling tool (P). This tool (P) is secured with a chuck (Q) by any usual means.
The chuck (Q) has its bearing in the block (E), and this bearing is tapered slightly
to take up wear. Upon the lower end of the chuck is mounted a pulley (R), to
which motion is communicated by belt (S) from any suitable source of power.
Since, in the operation of the machine, as will be later explained, the distance
between this pulley (R) and the source of power is continually changed, I have
provided an appliance for taking up the slack of the belt. This appliance is seen
in elevation in Figure 1 and in plan in Figure 2, and consists of two idler
pulleys (T and T¹), under which the belt is carried, and which pulleys are mounted
in the movable frame (U), which is pivoted to a support (V), and from the upper
end of the frame near the idlers (T and T) is suspended a weight (W), which, when
the belt is slackened, tends to draw down the idler pulleys, and thus tighten the
belt sufficiently to convey power. In order to prevent the belt being thrown off
the pulley (R) when these idlers (T, T¹) are drawn down, I provide another pair
of idlers (Y,) between the pulley (R) and the idlers (T, T¹), over which the belt
runs and which maintains a straight draft of the belt upon the pulley (R), and for
like reason I provide a further pair of idlers (Y*,) located between the
idlers (T, T) and the main driving shaft.
a
Having now described the construction of my machine, I would point out its
mode of operation:
A pattern (Z) is securely fastened to the frame (N) upon the right hand side of
the same and immediately over the tracing point (0), and upon the left hand side of
the frame (N) is fastened the piece of metal (Z¹) to be operated upon, a hole or holes
having been first bored through the same, through which the milling tool (P).

page_text: rises. The machine being put in operation, the milling tool is caused to revolve,
the operator grasps the handle (G), and by means of same causes the tracing
point (0) to follow the pattern design. The milling tool (P) being moved by the
same handle over an exactly similar path will by cutting reproduce in the
metal (Z) exactly the same design as the pattern (Z).
Where the design is a large one and the movement of the tracing point (0) and
the milling tool (P) when operated by the handle (G) is not sufficient to reach all
parts of the design, both pattern (Z) and the metal operated upon (Z¹) may be moved
relative to the tracing point (0) and milling tool (P) by shifting the frames (M
or N) as necessary. If it is desired to move the work to the right or to the left, then
the frame (M) is moved in the desired direction by turning upon the screw threaded
rod (m); if the work should be moved toward or away from the operator, then the
frame (N) may be moved by turning the screw threaded rod (n). Since the
relative position of the design (Z) and the metal (Z¹) is not changed by these
movements, the operation may be interrupted, the work moved, and the operation
again resumed, without any injurious effect upon the work.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is:-
1. In combination, the work supporting table adapted also to support the pattern,
a tracing point for the pattern, a cutting tool, a support for the point and tool
having movement in the same plane in two directions at right angles to each other
with means for moving the said tool support, the said tool support and work sup-
porting table being arranged to move in parallel planes but confined rigidly against
movement toward or from each other perpendicularly, substantially as described.
2. In combination, a block movable in two directions in a horizontal plane, a
work supporting table movable in two directions in a parallel plane, said table being
arranged to receive the work and pattern side by side, and the tool and tracing
point arranged at different points on the movable block and extending to the
work and pattern, the said work supporting table and tool block being confined
against movement perpendicularly to their movement in parallel planes, sub-
stantially as described.
3. In combination, the standard C, the bracket D guided therein to move
transversely and extending laterally from said standard, a block guided in said
bracket to move in the same plane with but at right angles to the movement of the
bracket, the work supporting table over the bracket comprising the frames movable
in a horizontal plane at right angles to each other, one of the frames being adapted
to receive the work and pattern side by side, and the tool and tracing point extend-
ing up from the block at different points thereon, substantially as described.
4. In combination, the standard C, the bracket D movable therein and slotted,
the block movable on the bracket longitudinally thereof, the work supporting table,
the tracing point and tool on the movable block, and the handle connected to the
block through the slot in the bracket, substantially as described.
5. In combination, the standard C, the bracket D movable therein, the tool block
movable in the bracket in the same plane with, but at right angles to the movement
of the bracket, the work supporting table movable in 'a plane parallel with the
plane in which the tool block moves and the tracing point and tool extending into
the plane of the work through the work supporting table, said table and tool block
being confined against movement towards and from each other.
Dated this Eignin day or
ebruary 1000.
L. CAMPI.
Per W. H. Beck,
115, Cannon Street, London, Agent.