Improvements in Printing Presses.
Year: 1895

page_text: Date of Application, 15th Jan., 1895-Accepted, 2nd Mar., 1895
Improvements in Printing Presses.
I, WILLIAM HUGHSON GOLDING, of 177-199 Fort Hill Square Boston, in
the County of Suffolk, and State of Massachusetts, United States of America,
Manufacturer, 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 relates to that class of printing presses employing a reciprocating
platen, and consists in a number of improvements calculated to increase the
efficiency of the press and facilitate its manipulation all of which are fully
described hereinafter and pointed out in the claims appended.
Reference is to be had to the annexed drawings and to the letters and figures
marked thereon, forming a part of this Specification, the same letters designating
the same parts or features as the case may be, wherever they occur.
Fig. 1 shows a side elevation of the press.
Fig. 2 shows a sectional view on an enlarged scale of the platen-operating
means.
Figs. 3 and 4 show the upper portion of the press in side elevation on an enlarged
scale as viewed from the opposite side to that seen in Fig. 1.
Fig. 5 shows a cross-section of an ink-receptacle and rollers.
Fig. 6 shows the same parts in side elevation partially broken away.
Fig. 7 shows a detail of registering or counting means.
Fig. 8 shows a detail of part of a work-table and appurtenances.
Figs. 9, 10, and 11, show sectional views illustrative of means for holding a
swiveled leaf of said table in different positions.
Fig. 12 shows a detail of means for holding the throw-off mechanism in one
adjustment.
Fig. 13 shows a perspective of the supporting base of the machine, and a belt-
shifting and brake-applying mechanism.
Fig. 14 shows a rear elevation of the press represented as broken out at one
part.
The upright sides a, of the machine have pivotally connected with their upper
ends arms a', which are provided with set-screws a², to bear on lugs a³, on said
upright sides and support the arms. An ink-transferring roller a', is supported by
said arms as is also an ink-receptacle as, which is pivotally connected with the arms
and provided with an inclined bottom a°, whose edge extends along the roller a
and a hinged lid a'. The amount of space allowed for exit of ink between the edge
of said inclined bottom and the surface of the roller is regulated by means of
screws a³, and a, entered through an ear on the ink-receptacle, and one bearing
against the arm a', while the other enters a threaded hole therein.
A set screw a¹º, entered through a cross-bar a", extending between depending
portions of the sides of the receptacle, and bearing against the under side of the
inclined bottom as, provides means for truing said bottom with respect to the
roller, i.e. making its edge parallel with the roller so there will be a uniform
distribution of ink thereon. There may be more than one of these screws a¹.
The usual yieldingly supported distributing rollers b, are arranged to travel
over the intermittently moving disc c, and in the construction here shown the
sides
a, are formed with raised edges 61 near the upper end, and the upper roller b,
is designed to run up on these edges b¹, and be raised thereby out of contact with

page_text: the disc c, and into contact with the roller a¹ so as to receive ink therefrom.
The roller at is partially rotated while the roller b, is in contact with it, through
connections with the crank-shaft d, as follows: The said roller a carries affixed to
it a ratchet wheel 2, and an arm 63 mounted loosely on the journal of said roller
carries a spring-pressed pawl, engaging said ratchet. A handle is formed on
said arm and a boss 6 is pivoted on one side of the arm. A rod extends loosely
through the said boss and is connected at its lower end with a crank, on the
shaft d. Said boss has a head at the upper end to abut the upper side of the
boss 6, and an adjustable collar 610 to abut the underside of said boss.
The downward throw of the crank 68 moves the arm & down by reason of the
engagement of head with the boss 66, and thereby the roller a is turned and
the upward throw of the said crank moves the said arm upward by reason of the
engagement of the collar with the boss 66, and thereby the pawl recovers for a
new stroke.
By adjusting the collar 60, the extent of movement of the roller is determined.
The roller can be turned by hand when desired by moving the handle &, up and
down, the boss 66, then sliding on the rod . The amount of pressure between
rollers a', and b, may be regulated by means of the screws a².
The platen e, is mounted on a vibratory support e', pivoted at e², and is oscillated
by means of a toggle-lever composed of members e³, and et, the latter being connected
by a linke, with the crank d. The pressure is thrown on and off, i.e. the adjustment
of the platen to operative or inoperative adjustment with relation to the bed, is
obtained through the following means:
The member, of the toggle-lever is mounted on an eccentric f, to one of whose
journals is affixed an arm A lever pivoted centrally to a fixed support, has
its lower end connected with the arm by a link f³, and its outer or upper ead
projects at the front of the machine in easy reach of the operator. It will be seen
that by turning the eccentric f, the adjustment of the platen will be changed, and
when the larger side of the eccentric is forward the platen is adjusted to operate
against the bed or in other words, the pressure is on, whereas when the large side
of the eccentric is rearward the pressure is off.
This is clearly illustrated in Fig. 2 where the full lines show one adjustment and
the broken lines the other. These two adjustments are effected by operating the
lever. When the latter is in its upward position, the arm is turned down
against set screw entered through a stationary lug and the large side of the
eccentric is thrown forward.
5
6
7
It is to be noted that under this adjustment the point of connection between the
lever and the link at f, is below a line drawn between the pivot of said lever at f
and the point of connection between the link f³ and the arm at f (see Fig. 1).
The stop screw is adjusted to resist the movement of the connection across
this line, and the parts have to be sprung somewhat to carry the connection over.
Hence the parts will be locked in this position and cannot be displaced except by a
downward pressure on the handle of the lever. By such downward pressure the
adjustment is broken and the eccentric moved to the other adjustment and the
pressure is thrown off.
The parts are locked in the latter adjustment by means of a socketed projection g,
on the lever (see Fig. 12) which engages with the round head of a screw g
fastened in the side of the machine frame, the lever having sufficient resiliency to
bring about engagement of these parts.
A registering or counting mechanism h, is fastened on a horizontal bracket at
the lower front part of the machine and a lever operatively connected with the
mechanism carries a set screw 2 adapted to be acted on by a projection A³, on the
vibrating platen-support e', when the latter is adjusted to maintain the platen
operative. When the pressure is thrown off the lower end of the support e¹,
having said projection h³ is moved back and does not advance far enough to
operate the counting mechanism. Thus the counting mechanism is only actuated
when the pressure is on and the printing in progress.

page_text: A horizontal table i, is supported on brackets at the front of the machine and
designed to hold the printed matter. A leaf is swiveled to the said table at one
corner thereof by a bolt and may be locked in closed and open adjustment by
means of a triangular frame is fastened to the table, and a screw fastened in the
leaf, the round head of said screw adapted to be sprung over the sides of said frame,.
as shown in Fig. 10. This leaf is to hold the matter to be printed.
Fast and loose pulleys and a fly-wheel j, are mounted on the driving shaft j' of
the machine, and a belt-shipper, is pivoted to a bracket on the machine frame
and has an arm affixed to its journal. A lever is pivoted to ears on the bracket 13,
and has a slotted arm j engaging the arm . A brake shoe is affixed to the
lever's pivot and arranged to bear against the periphery of the fly-wheel. The
lever has a handle in easy reach of the attendant, who by operating said lever
can shift the belt and apply the brake-shoe at the same time, thus instantly
stopping the machine.
The supporting base m, of the machine is a hollow two-part casting connected
by bolts m³, and it is utilized as a store-room for the rollers. The floor m" of this
room is a wooden board m', whose grain runs transversely of the room so as to
obviate warping, and the back m' is a similarly disposed board.
Racks mare arranged within the room to hold the rollers and the room is closed
by a hinged door m³.
The driving shaft j' is connected with the crank shaft d, by gears o, and o¹, and
it is to be noted that the crank is cast in one piece with the gear o. The outer
end of the crank journals in a bushing o² fastened in a hole in the frame-casting,
said hole being made large enough to permit the insertion of the crank allowing
for its bend.
The oscillatory frame p, which carries the ink-distributing rollers b, is connected
by a link with the crank-shaft d. It is to be observed that the collars p², and e',
which embrace the crank d, are formed integral with the links p₁ and e
respectively and that the arm of the crank is reduced so as to permit of said collars
being slipped over the same on to the wrist of the crank.
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 [
claim is
1. A printing press comprising in its construction an inking roller, an ink
receptacle pivotally suspended from a suitable support and having an inclined
bottom whose edge extends along the said roller, and a set screw and a draft screw
at each end of the receptacle to regulate the width of opening between said edge
and the roller.
2. A printing press comprising in its construction an inking roller, an ink
receptacle pivotally suspended from a suitable support and having an inclined
bottom whose edge extends along said roller, a set screw entered through portions
of the receptacle at each end of the latter and bearing against the support, a set
screw bearing directly against said inclined bottom and a draft screw at each end
fastened in the support and extending through portions of the receptacle.
3. A printing press comprising in its construction an inking roller, an ink
receptacle having an integral inclined bottom and whose edge extends along the
said roller and an integral beam extending from side to side of said receptacle
below the inclined bottom both formed in one casting, and a set screw entered
through said beam and bearing against said inclined bottom so as to hold the edge
of the latter parallel with the roller.
4. In a printing press, the combination of an ink holder, a roll for transferring
ink therefrom, a ratchet on said roll, an arm loosely mounted on the journal of said
roll and carrying a pawl in engagement with the ratchet, a b.ss pivotally mounted
on said arm between its ends, an arın on the driving crank and a rod connected
with said arm and having a sliding engagement with the pivoted boss on the first
named arm and abutments to coact with the same.

page_text: 5. In a printing press, the combination with a vibratory support for the platen,
and a toggle lever for operating the same and connected with the crank shaft,
of an eccentric supporting one end of the toggle, an arm affixed to the eccentric,
an operating lever, a link connecting the same with the arm and a stop against
which the said arm abuts to resist movement of the connection between the lever
and link across a line drawn between the pivot of the lever and the point of
connection between the link and arm for the purpose described.
6. In a printing press, the combination with a vibratory support for the platen,
and a toggle lever for operating the same and connected with the crank shaft, of
an eccentric supporting one end of the toggle, an arm affixed to the eccentric, an
operating lever connected with said arm and having a projection on one side with
a concavity in its end, and a fixed stud to engage said concavity in the manner and
for the purpose described.
7. In a printing press, the combination of a supporting base having a bracket
at the lower front portion, a vibratory platen support whose lower end is behind
said bracket, means for throwing the platen into or out of operative adjustment
by movement of its support and a register supported on the bracket of the base
and having a member projecting in the path of the vibratory platen support and
adapted to coact therewith only when it is adjusted to maintain the platen in
operative position.
8. In a printing press, a stationary work supporting table, a frame fastened
thereto and a leaf swiveled to the table and having an adjustable rounded
projection adapted to engage the sides of the said frame and to be sprung over
the same.
9. A printing press comprising in its construction a vibrating platen, a toggle
for operating the same, an eccentric on which one member of said toggle is
mounted, a vibrating frame carrying the distributing rollers, a driving crank, a
link, connecting the wrist of said crank with the toggle and a link connecting said
wrist with the roller-carrying frame.
10. A printing press comprising in its construction a vibrating platen, a toggle
for operating the same, an eccentric on which one member of said toggle is
mounted, a vibrating frame carrying the distributing rollers, a driving crank, and
links connecting the latter with the toggle and frame respectively said links being
formed with integral collars to embrace the wrist of the crank, the end of said
crank being reduced to permit of said collars being slid thereover.
Dated this 15th day of January 1895.
BOULT & WADE,
Agents for the Applicant.