Improvements in Printing Presses.
Year: 1892

page_text: Date of Application, 29th Mar., 1892-Accepted, 30th Apr., 1892
COMPLETE SPECIFICATION,
Improvements in Printing Presses.
We, SAMUEL PHILLIPS STEEN Jr., and CHARLES HENRY ELLIOTT, both of
No. 912 Filbert Street, Philadelphia Pennsylvania, United States of America,
Plate Printers, do hereby declare the nature of this invention and in what
manner the same is to be performed to be particularly described and ascertained
in and by the following statement:-
:-
The invention consists of a die and printing press having novel features as
hereinafter set forth.
In the accompanying drawings:
Figure 1 represents a vertical sectional view of a press embodying my invention.
Figure 2 represents a perspective view of a portion of the wiper operating
mechanism, on an enlarged scale.
Figure 3 represents a central longitudinal section of the parts shown in
Figure 2.
Figure 4 represents a partly side and partly sectional view of a detail portion of
the device.
Similar letters of reference indicate corresponding parts in the several figures.
A designates the frame of the press, and B the bed thereof. In the arms C of
the frame is journalled the shaft D, which receives rotary motion from any suitable
motor. E designates a sliding table, movable in the guides F on the bed B, by
means of a connecting rod G secured to an ear on the underside of the said table
and to an arm H on a shaft J which is journalled in attachments of the frame A
below the bed B, and receives motion from the shaft D by means of a sprocket
chain K, and the sprocket wheels L and M, or other suitable gearing.
Secured to the frame A, underneath the table E, are the arms N carrying at
their upper ends the rollers P adapted to contact with the underside of the table
so as to slightly raise the same, to bring the die more positively against the wiper.
Qdesignates a cross bar secured at one end to the upright C of the frame, and
supported near its other end in the standard R. To the said bar Q is secured a
bracket S in which is journalled the parallel shafts T and U, carrying the spools V
and W for the wiper X of the device, the said wiper being wound on said spools,
passing around the bar which is secured to the bed B above the said table E. The
lower die or plate Z is supported on the table E, and the plunger A', the flat head
of which bears upon the paper to be printed on, resting on the lower die Z, is
raised and lowered by means of an eccentric B¹, on the shaft D¹ a yoke C¹
embracing said eccentric and having an arm D' pivotally connected to the toggle
lever E¹, one end of which has a ball bearing in an upper part of the standard R,
and the other end has a ball bearing Ex in connection with the said plunger A³, the
latter moving in a boss or guide F₁ secured to the bar Q.
Connected with a rising and falling arm G¹ secured to and operated by the
movement of the plunger, is the brush or brushes of the ink or colour
distributing device adapted to receive the ink from an ink well K¹ secured to the
table E.
To operate the wiper X, which consists of a strip of paper or other, suitable
material adapted to remove the ink from the smooth face portion of the die Z, so
as to continually present a clean face to the die, the table E is provided with a
rack L' which engages a toothed wheel M¹ mounted on a shaft N₁ journalled in an
attachment to the frame A and carrying a cone pulley or wheel P¹, which is
connected by a band Q' with a wheel on the shaft T. It will be seen that the
movement of the table in one direction, or to the rear, will cause the rack L' to
rotate the wheel M', and thereby the shaft N' and pulley P, rotating the wheel on

page_text: the shaft T and thus the said shaft, and thereby winding the paper on a drum or
spool V, and unwind it from the spool W, thus presenting a clean portion of the
wiper to the die on the return movement of the table. To prevent the unwinding
of the strip from the spool V on the said return movement of the table, the wheel M¹
which is loosely mounted on the shaft N' is secured thereto by means of a ratchet
wheel R which is fastened to the shaft so as to rotate therewith, and a disc S¹
secured to the side of the cog wheel M¹, and carrying a spring-pressed pawl T¹
which engages the ratchet wheel when the rack is moved backward or away from
the plunger A' but rides over the teeth of the said ratchet wheel when the rack is
moved towards the said plunger, whereby the said wheel runs free on the shaft N¹
without rotating the same, in the forward movement of the table and rack, and the
wiper remains tightly drawn and without any slack, so as to efficiently perform its
work.
The operation of the device is as follows:
The shaft D is rotated so as to operate the shaft J, and thereby move the table E,
so that the die Z which is placed thereon as shown, is passed under the brush Ji
receiving the colour thereon, the excess of colour or that on the smooth surface of
the die being wiped therefrom as the die passes under the wiper in the forward
movement of the table.
The paper on which the printing or impression is to be made is now placed on
the upper portion B* of the bed B which is formed of sections cut away on one
side of their inner ends, so as to permit the easy handling of the dies Z within
the bed. The said die now being under the paper at the place designed to receive
the impression.
The parts are so timed that the plunger now descends, dwelling a short time on
the paper, whereby the latter is brought in close contact with the die, thus printing
the design thereon. At the same time the lowering of the arm G¹ dips the brush
in the ink or colour well which is directly below the same.
The further rotation of the shaft D raises the plunger A', lifts the brush J¹ from
out the well K' moves the table E to the rear, the rearward movement of the rack I¹
causing the winding of the wiper on the spool V from off the spool W.
A further rotation of the shaft D causes the backward movement of the table E
and the repetition of the operation herein before described.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
:-
First. A printing press having a frame, a table movable on said frame and
carrying an ink well and die thereon, and a brush above said table in the path of
said well and die, said parts being combined substantially as described.
Second. A frame, a movable table with ink well thereon, a rising and falling
brush in the path of said well, a wiper and a die, said parts being combined
substantially as described.
Third. A frame a driving shaft a plunger, a toggle lever connected with said
plunger and said frame, an eccentric on said shaft, a yoke embracing said eccentric
and having an arm connected with said toggle lever, a rising and falling brush, a
hinged arm carrying said brush, and a lower die, said parts being combined substan-
tially as described.
Fourth. In a printing press, a brush, a plunger having a rising and falling arm
connected with said plunger and brush, a reciprocating table carrying a die, and
an ink well, a wiper in the path of the die, and mechanism for adjusting the wiper,
said parts being combined substantially as described.
Fifth. In a printing press, a movable table pivoted arms carrying rollers bearing
against the underside of said table, and stops for said arms, said parts being
combined substantially as described.
Sixth. A printing press having a sliding table with ink or colour well thereon, a
die on the table, mechanism for sliding said table, a rising and falling brush above

page_text: said table and in the path of said wheel, a plunger, and operating mechanism for
said plunger, said parts being combined substantially as described.
Seventh. In a printing press, a frame, a reciprocating table movable thereon and
adapted to carry a die and an ink well, a rising and falling brush in the path of said
die and well, a bracket secured to said frame, shafts journalled in said brackets,
drums on said shafts, a bar secured to the bed of said frame above said table, a
strip of suitable material secured at one end to one of said drums, and passing
around said bar and secured at its other end to the other drum, so as to wind and
unwind on and from said drums, a rack on the said table, a shaft having a suitable
bearing and having a wheel and a pulley thereon, and a band connecting said pulley
with a wheel on one of the shafts of said drums, said parts being combined substan-
tially as described.
Dit 1
of March 1900
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicants.