Year: 1890

page_text: Figures, and are decin views neremarter described.
A is the base, and B are pillars or supports rising therefrom, which serve to carry
the shafts and journals.
C is a disc carrying on its periphery the dies or impression plates. D is a disc
around the circumference of which the dials to be printed are attached. An inter-
mediate disc E serves to take the impression from the dies of the disc C and to
transfer the same to the dials on the disc D. The shafts of the discs are provided
as shown with suitable gear wheels C³, D', E', which are of equal diameter and
pitch.
The die wheel or disc C is secured upon a shaft c and is rotated therewith by the
pinion Z thereon, the transmitter-disc E and the dial wheel D being caused to
revolve in unison with the die-wheel C through the medium of the gear
wheels C, D, E¹.
The discs C, D and E are usually made removable, being easily adjusted to the
proper position when placed upon their shafts c, d, e, respectively by the aid of, the
guile-pins a fixed in the back plates band fitting into corresponding holes in
the said disc. By this means dises adapted for any desired size of dial may be used.
J indicates an inking plate secured to the frame, J¹ is an ink roller, the journals of
which are held in bearings at the end of the lever K by the springs k. The lever K
is pivoted to a fulcrum-pin on the frame, its other extremity be ng connected by a
rod k to a lever K¹ bearing a stud k³, which engages a cam groove of the cani-
wheel K" on the shaft c. The cam groove is provided with angular bends diametrically
opposite one another whereby the lever K¹, is moved, this movement by means of the
rod k operating the lever K. and moving the ink-feeding roller back upon the inking-
plate and forward again to its other position for transferring the ink to the main
inking roller J", by which the ink is delivered to the convex faces of the dies.
I indicates a knife or cleaner, which has its journals in spring-bearings to allow it
to adjust itself to the surface of the die as the latter passes under its edge. The object
of the cleaner is to remove superfluous ink from the face of the die, while leaving that
in the groovings. The position of the edge of the knife is governed by an arm of its
shaft which presses upon the periphery of the cam disc K² of proper diameter.
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page_text: The angular cam projections 12, which are at diametrically opposite points, ar
designed to throw the knife back at certain times against the ink-feeding roller, t
which the ink carried by the knife from the faces of the dies is delivered.
To further insure the cleaning of the faces of the dies, a cleaning-roller Mi
provided, this roller being itself cleaned by a short belt m, of felting, which is kep
charged with alcohol or turpentine. The dies passing the cleaning-roller are thus
cleaned upon their faces, while the ink is left in the engraved paris of the dies which
are thus enabled to deliver their impressions in a clear and clean manner to the
transfer-disc E. The manner in which the dies are secured to the periphery of the
-disc is as follows, that is to say :-The dies are secured to heads h of the die-holders N
whose shanks n are seated in grooves or way's n¹ of the disc C. The dies are adjustable
in the direction of movement of the disc, the head and body or shank of the die-holder
being connected to the disc by a tongue-and-groove joint, as indicated.
A clamp-
screw is indicated at h¹ for securing the die in the holder.
The dials are attached to the adjustable heads t of the holders I, whose shanks s
are seated in grooves or ways s¹ of the disc D. These heads t are adjustable trans-
versely to the direction of movement of the disc, the head and body of the dial-holder
having also a tongue-and-groove joint.
The dial-holder is designed to have some spring action, because the faces of the dials
of watches are plane and the holders must yield as the transmitter-disc engages them.
The tension-spring is indicated at T, and V₁ is the tension-screw which engages a
threaded opening in a shoulder of the disc and forms the bearing for the inner end of
this spring.
A stop-screw S in a holder is designed to be adjusted to limit the
movement of the holder outward, while the spring T-regulates its yielding tension.
Watch-dials are usually provided with three studs z, and to facilitate the attachment
of these dials to the head of the dial-holder in precise and exact position the said head
is provided with three sockets, as at z', to receive the studs, and spring-fastenings V.
attached to the head, serve to engage the studs in said sockets and to hold them by
friction. The dials can therefore be readily placed in attached position on the heads
of the dial-holders and easily detached therefrom when printed by the operator.
A revolving brush P in an alcohol or turpentine cup P¹ serves to clean the dies after
they have operated and the alcohol or turpentine is removed therefrom by the felt-
covered roll R, which is operated by the pressure of the dies:
The inking-roller is operated by a belt from a drum on the shaft of the die-
wheel, and from another drum on the same shaft a belt extends, engaging the driving-
pulley of the belt m. The cleaning-brush P is rotated by a belt from a drum on the
shaft of the transfer disc E.
The main shaft c carries a pinion Z as before mentioned, which engages a worm Z",
whereby mechanism is moved.
The main discs C, D,and E and the cleaning-rolls and inking devices are preferably
arranged to move in the vertical plane. The attendant at the dial-wheel as it revolves
takes off the printed dials and attaches the blank to be printed.
The radius of the pitch-line of the toothed wheels CD, E' is equal to the distance
from the centre of the disc to the face of the die, or to the face of the transmitter, or
to the face of the dial at the point of contact as the case may be. As the dials come
over on the disc D after being printed, they are taken from the holders I of said dise
by the attendant, blank dials being attached to said holders in place thereof, so that
the operation is continuously carried on.
In this machine the transmitter, being located between the die-wheel and the dial-
wheel and moving evenly and uniformly with these wheels, takes the impressions from
the dies and prints them neatly upon the dials. The adjusting devices enable the dies
and dials to be properly placed and centered relatively to each other, so that the work
done upon the dials will be clear and exact. The curvature of the face of the trans-
mitter-disc is designed to have its radius equal to that of the pitch-line of the gear, so
that there will be no slip, and the impressions upon the dials will not be blurred, but
will be sharp and clear. The cleaning devices are designed to prevent any ink spots

page_text: or marks from being presented to the face of the transmitter disc, except those of the
engraved groovings, in order that the work upon the dials shall be clean.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, as communicated to me by
my foreign correspondent I declare that what I claim is :-
First. A dial-printing machine comprising a revolving die-carrying disc, a revolving
dial-carrying disc, an intermediate transfer-disc, and connecting gear wheels having
uniform diameter and pitch, for the purposes above specified.
Second. In a dial-printing machine, the combination of the die-carrying disc and
its engraved dies, the transfer-disc, the dial carrying-disc and its spring dial-holders,
the gear-wheels connecting the shafts of the said discs, the spring-adjusted cleaning-
knife, and the inking and cleaning devices, substantially as and for the purposes,
above specified.
Third. In a dial-printing machine, the combination of the die carrying disc. and
its peripheral dies, the transfer-disc and its elastic rim or face and the dial-carrying
disc, its peripheral dial-holders and the connecting gear-wheels, substantially as and
for the purposes above specified.
Fourth. The improved dial-printing machine constructed substantially as described
with reference to the accompanying drawings, and for the purposes set forth.
Dated this 16th day of May 1890.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, Agents for the Applicant.