Improvements in Printing Machines.
Year: 1891

page_text: Date of Application, 18th Nov., 1891
Complete Specification Left, 18th Aug., 1892-Accepted, 8th Oct., 1892
PROVISIONAL SPECIFICATION.
Improvements in Printing Machines.
I MARTIN WRIGHT of The Cyltine Manifold Copying Machine Company,
Highfield Works, Upper Kent Street, Leicester Manager, do hereby declare the
nature of this invention to be as follows:-
This invention has for object the construction and arrangement of the workable
parts of a machine in which zinco litho printing can be effected in an easy and
expeditious manner.
The machine is specially adapted for small work and from its portability it cau
be used for making a number of copies either from written or printed proofs, such
as those produced from an ordinary type writer, the pressure of the pressing drum
being capable of exact adjustment for obtaining impressions of the lightest lines,
toning and shading, such as are observable in fancy cards, tradesmen's bill heads,
circulars and the like.
The machine is composed of two side frames braced by cross bars to obtain
rigidity.
.
The upper roller or printing cylinder carries the prepared zinc plate. The ends
of the plate are secured by folding plate clamps, arranged within a gap in the
circumference of the cylinder and the pressure drum is carried by an oscillatory
frame controlled by a kind of universal jointed handle and adjustable by set screws
from the front of the machine. At the back of the machine are ink supply and
distributing rollers also a damping roller wetted by a flannel partly immersed in
a water trough, this having a pressing plate and screw key for regulating the
supply of water to the damping roller.
The ink distributing roller (or rollers) is carried by a frame which may be set by
springs for the roller to be in contact with the zinc plate or by moving a cross bar
the distributing roller can be thrown away from the zinco cylinder. For this
purpose one ink distributing roller supported by rods having an upward action by
means of springs when the cross bar is in one position and when the pressure
thereof is released the springs cause bell cranks by which the other roller is carried
to be forced away from the zinco plate and exert pressure on the ductor roller for
taking a fresh supply and for working the ink up by an outside handle being
turned.
The main driving wheel has a bolt capable of being kept out of action by a
throw over knuckle jointed finger piece.
Instead of a zinc plate being placed upon the cylinder other forms of composition
sheets may be employed the printing in every case being alike.
Dated this 18th day of November 1891.
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said Martin Wright.
COMPLETE SPECIFICATION.
Improvements in Printing Machines.
I, MARTIN WRIGHT, of The Cyltine Manifold Copying Machine Company,
Highfield Works, Upper Kent Street, Leicester, Manager, 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 :-
This invention has for object, the construction and arrangement of the workable

page_text: parts of a machine in which zinco litho printing can be effected in an easy and
expeditious manner.
The machine is specially adapted, for small work, and from its portability it can
be used for making a number of copies, either from written or printed proofs, such
as those-produced from an ordinary type writer, the pressure of the pressing drum
being capable of exact adjustment for obtaining impressions of the lightest lines,
toning, and shading, such as are observable in fancy cards, tradesmen's bill heads,
circulars, and the like.
My invention will be clearly understood by the annexed drawings.
Figure 1 is an elevation showing the working parts, the side frame being
removed.
Figure 2 a similar elevation with the side plate on, and illustrating the gear by
which the motions are effected.
Figure 3 plan of the complete machine.
Figure 4 end view of printing cylinder.
Figure 5 detached view of zinco-plate or composition sheet-clip.
Figure 6 elevation of knuckle jointed finger action bolt.
A, A, are two side frame plates braced at the required distance apart by cross
bolts B, B, and by a front plate C.
Between the side plates A, A, is the skeleton frame D supported somewhat
loosely by its axles E, E, in apertures in the side plates A, A, for side motion from
the handle F. F' is a stem or spring projecting from the skeleton frame which
stem rides in a Z shaped slot of the front plate C when the skeleton frame has to
be canted on its axles to put the pressure drum G into contact with the printing
cylinder H or to take it away from it by a dropping action, the pressure drum G
being carried by the end of the frame D. At the inner side of one arm of the
skeleton frame is a cam plate I for governing the motion of the gripper
takes the paper to be printed from the feed board K through the stud on the end
of the gripper lever L riding up the nose M of the cam plate I, and keeping hold
of the paper while the stud moves round the circular periphery of the cam I when
e.gripper releases the paper by its stud M falling into the cut away part of the
cam plate by the action of a spring.
the.
which
The handle F is pivoted below the front plate C to a bolt N for up and down
motion and the bolt N is in a socket P to turu circularwise, the inner end of the
handle being articulated to a strap Q of the skeleton frame for the necessary
canting and slewing motion to be given to the pressure drum G. The stem Fl is.
part of a plate spring to permit of a yielding action of the drum when the paper is
passing through the machine, and the amount of pressure for printing purposes can
be regulated by the set screw F
The printing cylinder H. has a recess in its periphery for the lodgment of two
clips R, R, by which the zinco-sheet or an ordinary gelatinous sheet S can be
secured around the cylinder, said clips being drawn towards each other by the
straining bar T. To centralize the sheet S on the cylinder, I fix a post in the
recess and by an eye U on one of the clips shown at Figure. 5, this can be readily
effected.
The zinco or gelatinous paper, sheet has its ends inserted between pairs of blades
hinged together, which, are inserted into the clips from the end, the tapered
shape of the blades fixing them in the tapered inner faces of the clips R.
The cylinder H is held between the sides A, A, and has on one end and outside
the frame, a stepped tooth or, double, edged gear wheel U with a handle V by
which it can be turned for the printing, operation, this wheel gears into a gear
wheel W on the axle of the pressure drum G whether the frame D be, up or down
because as it is inoved sideways, the teeth, slide down the step and engage in the
larger diameter part.
At each revolution of the cylinder, a spring bolt X is forced against a stop Y
and brings the cylinder H. to a state of rest, and when the cylinder has to be again
rotated, a pressure, on the finger piece Zwithdraws the bolt X from the stop Y

page_text: Should it be necessary to keep the bolt X clear of the stop Y, the finger piece Z is
thrown upwards, where it is retained by the knuckle joint of the finger piece.
a is the ink supply roller and b, c, the distributing rollers, d is the damping
roller which is wetted by a flannel e partly immersed in the water trough f, this
having a pressing plate g and screw wheel for regulating the supply of water to
the damping roller.
с
One of the inking rollers c is carried by arms i adjustable upon the bell crank l,
and the other b is carried in slanting slot of the frame A and supported by the
lower end of the arm of the bell crank by which under the action of a spring j,
the rollers c, c', are forced into contact with the zinc plate S on the cylinder H.
into the position shown at Figure 2, the rollers b, c,
By moving the cross bar
can be moved away from the zinco cylinder.
To effect this, the lower ends of the side pieces k', between which the cross bar k
is secured, are formed to act as a cam to depress a sliding bar kl. A small roller
or stud projects from the inner side of said sliding bar ", it bears upon the
periphery of the roller band moves same down the inclined slot in the frame A this
forces the arm of the bell crank / down, and the ductor roller up, its incline slot.
In this position, both rollers are out of contact with the zinco roller but in
contact with each other and with the ductor roller a, so that upon the handle m
affixed to the spindle of the roller c¹ being turned, the ink can be thoroughly
worked up.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. The particular construction and arrangement of the working parts as shown
by the drawings, the whole operating in the manner and for the purposes set forth.
2. As construction and arrangement of details of the hereinbefore described
machine
a. The double jointed handle motion for the skeleton frame D, F, P, N, Q, and
pressure drum G.
b. The lever i and bell crank 1 for to and fro motion of rollers b, c.
c. The throw over bar k for putting rollers b, c, into and out of touch with
printing cylinder H.
d. The knuckle jointed finger appliance Z for operating the bolt X, as and for
the purposes described.
The 18th day of August 1892.
H. GARDNER,
Patent Agent, 166, Fleet Street, London,..
Agent for the said Martin Wright.