Year: 1898

page_text: We, FRED WAITE, of 32, Mount Pisgah, Otley, in the County of York, Printer's
Enginer, and WAITE & SAVILLE, LIMITED, of Falcon Works, Otley, atoresaid,
Engineers, do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in platen printing machines particularly
for printing envelopes and other small work.
For this purpose we employ an inverted type bed and a reciprocating platen or
carriage by which the paper or the like is carried from the feed table to beneath
the type bed and the latter is brought down to give the impression. The feed
table consists of a thin plate to the inner edge of which a rising and falling
movement is given. The falling movement of the table is for the purpose of
lowering the paper clear of the feed guide or guides and leave its inner edge
projecting over the table iree to be laid hold of by suitable grippers on the reci-
procating platen which latter is brought more or less under the table for this pur-
pose. The paper is then drawn off the table and is carried by the platen to
beneath the type bed and the impression is made the platen being then supported
upon a substantial and preferably adjustable platen bed beneath. A delivery car-
riage is now brought up to the platen, on the opposite side to the feed table, and
a gripper (or grippers) thereon lays hold of the edge of the paper next to it; at
the same time the said grippers on the platen releases the paper leaving it free
to be drawn away by the reverse movement of the carriage which at the end
of its stroke delivers it on to an endless travelling sheet or other delivery device.
A portion of the platen is cut away on the edge nearest to the delivery carriage
to enable the edge of the paper projecting over this cut away portion to be laid
hold of by the gripper on said carriage. Both the grippers on the carriage and
those on the platen are closed by springs and are opened by a movable incline
or tappet engaging arms on the gripper spindles and actuated by a cam.
grippers on the platen are preferable pivoted near the sides of the platen and
branch inwards towards each other so as to lay well hold of the paper but when
slightly raised form no obstruction to its ready removal.
The
The inking rollers are mounted on the reciprocating platen in suitable spring
bearings fitting sockets formed in the platen and ink the type or form each time
the platen is moved to and from the feed table.
The feed table is preferably hinged to a cross shaft in front in such a manner
that it may be turned over to clear the reciprocating carriage when the latter is
at that end of its stroke thus leaving the face of the carriage uncovered in the
form of a "nake ready plate. Make ready holders or clamps are pivoted by
arms at each end to projections on each side of the front and back of the car-

page_text: riage and are constructed to clamp the make ready material against the front and
back edges of the carriage.
The feed table is supported when in position for feeding on an adjustable pro-
jection on an arm or lever hinged to the cross shaft carrying the table and its
other end engages a cam on the cam shaft formed to raise and lower the table as
required.
The carriage is reciprocated by vibrating arms mounted on a rocking shaft and
operated by an arm engaging a suitably shaped cam on the cam shaft. The
upper ends of the arms are connected to the carriage by links.
The type bed is brought down to give the impression by means of an arrange-
ment of toggle levers and the rounded end of the lower toggle lever rests in a
bearing fitung a socket in the top of the type bed slide provision being made to
prevent such bearing turning in its socket. To prevent an impression being
made when not required a flat sided spindle is provided in the side of the type bed
for the bearing of the toggle lever to rest upon so arranged that when the flat
on said spindle is brought beneath said bearing the latter is more or depressed
in its socket and does not sufficiently depress the type bed to give an impression.
The said spindle is provided with an arm at the end to turn it and a swing tappet
is provided which may be moved into the path of said arm to engage it and turn
the shaft sufficiently to stop the impression. The swing tappet has only a limited
movement and may fall by its own weight out of operation and be held in position
to act by a weighted swing lever adapted to be thrown over by hand.
To deliver the printed papers in distinct batches or piles of equal number we
drop them on to a travelling apron or carrier operated by a pawl and ratchet and
to accelerate the apron or carrier at fixed intervals we employ a double pawl or
two pawls one of which engages a disc or wheel of comparatively small diameter
fixed to the ratchet wheel but having only one tooth or if more than one tooth dis-
tinct intervals are made between the teeth. The two pawls are preferably
mounted on the same lever one above the other and the upper pawl, that is to
say the one furthest from the end or the part on which the lever vibrates, is
arranged to engage the smaller ratchet.
Tatod this 14th day of March 1898.
DRACUP & NOWELL,
Patent Agents, Bradford.
COMPLETE SPECIFICATION.
Improvements in Platen Printing Presses.
We, FRED WAITE, of 32, Mount Pisgah, Otley, in the County of York, Printer's
Engineer, and WAITE & SAVILLE, LIMITED, of Falcon Works, Otley, atoresaid,
Engineers, 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 improvements in platen printing machines particularly
for printing envelopes and other small work.
To fully describe our invention, reference is made to the accompanying sheets
of drawings forming a part of this specification, in which similar letters of refer-
ence indicate corresponding parts in each of the figures.
Figure 1, represents a front view of our improved machine.
Figure 2, is an elevation of one side of the machine and Figure 3, is an eleva-
tion of the other side.

page_text: Figures 4 and 5, are views of detail hereinafter referred to.
The form of type is secured to the underside of the inverted type bed A and
the reciprocating platen or carriage B carries the paper or the like from the feed
table to beneath the type or form and the type bed is brought down to give the
impression. The feed table consists of a thin plate C to the thin inner edge C
of which a rising and falling movement is given. The falling movement of the
table is for the purpose of lowering the paper clear of the front feed guide C³
and leave its front or inner edge projecting over the table free to be laid hold of
by the grippers B² on the platen B which latter is brought under the table for
this purpose. The paper is then drawn off the table and is carried by the platen
to beneath the type bed A and the impression is made, the platen being then sup-
ported upon the bed D fixed across between the two side frames D2 and D³. The
delivery carriage E is now brought up to the platen and a gripper E2 thereon lays
hold of the edge of the paper next to it, at the same time the grippers B2 on the
platen release the paper leaving it free to be drawn away by the reverse move-
ment of the carriage which delivers it on to an endless travelling sheet For an
equivalent arrangement.
Figure 4, is a plan view of the platen and carriage shewing the grippers and
certain other parts, and Figure 5, is a cross section of the same on the line a---b.
The platen grippers B² project through slots 133 in the platen and are secured
on the ends of the rod B lying in a groove in the underside of B and mounted in
suitable bearing pieces let into the underside. A spring B stretching between
the stud B in the underside of B and a projection B on the rod B is provided
to keep the grippers down upon the front edge of B whilst they are required to
hold the paper, and they are opened by the arm BS carrying an anti-friction
roller B engaging the arm H on the rocking shaft H². The shaft H2 is rocked to
raise the arm H by its arm H³ provided with an anti-friction roller H bearing
upon the cam H³ fixed upon the cam shaft H. The bed D is cut away to allow
the spring 15 to pass over it. The gripper E2 is mounted upon the rod fitted
in bearings E on the underside of the carriage E and an arm on this rod
carries an anti-friction roller E6 which when the gripper requires to open engages
the underside of the end H8 of the arm H. The spring E7 stretched between the
projection E on the rod E3 and the stud E9 in the carriage E tends to keep the
gripper closed against the underside of the projection E on the carriage so that
when the arm H rises to open the grippers B2 the gripper E² closes on the paper.
The platen B is cut away at b to allow the gripper E to pass under the paper.
The grippers B2 are preferably pivoted near the sides of B and branch inwards
towards each other so as to lay well hold of the paper but when slightly raised
form no obstruction to its ready removal. As the grippers are contained within
the area of the platen they readily pass beneath the type and allow the inking
rollers to be located close to the platen.
The inking rollers J are mounted upon the platen B in bearings J2 fitting
sockets J³ formed in the platen and ink the type or form each time the platen is
moved to and from the feed table. Springs J are provided to press the rollers
up against the type and against the ink cylinder J supplied with ink from the
ink duct J8 in any convenient way. The cylinder J may be driven by a pitch
chain J from a sprocket wheel J7 on the shaft H6.
The feed table C is preferably hinged on the cross shaft C in front so that it
may be turned up clear away from the platen B when the latter is at the end of
its stroke thus leaving the face of the platen uncovered in the form of a make
ready plate. Make ready holders or clamps K and K² are pivoted by the armis K³
to projections K on the platen and are constructed to clamp the make ready
material against the front and back edges of the platen. In Figures 4 and 5
the clamp K is shown partly raised.
The feed table C is supported when in position by the adjustable screw C in
the projection C on the arm C7 fixed to the shaft and the other end of such
arm carries an anti-friction roller C engaging a cam C8 on the shaft H❝ formed

page_text: to raise and lower the table as required.
anti-friction roller C against the cam.
A spring M is provided to keep the
The platen B is reciprocated by vibrating arms L mounted upon the rocking
shaft L and operated by an anti-friction roller L³ on the arm L' engaging the
cam L on the shaft H. Springs L' stretching between the stay 1³ and the
arm L³ on the shaft L³ are provided to make the roller L³ follow the periphery of
the cam.
The delivery carriage is reciprocated by arms N on the rocking shaft N
actuated by its arm N³ engaging the cam № on the shaft H. The arms N are
coupled by the links N to lugs N on the underside of the carriage E and a
spring N is provided to keep the anti-friction roller N8 on the arm N³ against
the cam N.
The type bed is brought down to give the impression by means of the toggle
levers A and A3 and the rounded end of the lever A rests in a bearing seat A
fitting a socket A5 in the top of the type bed slide A. The lever A² is coupled
to A³ and is rigidly fixed to the rocking shaft P actuated by the arm P² con-
nected by the rod 13 to the arm P4 mounted by one end on the stud P5 and the
other end carries an anti-friction roller P6 bearing upon the cam P7 on the
shaft H. The spring P lifts the type bed.
To prevent an impression being made when not required the flat sided spindle R
is provided in the slide of the type bed and the seat A rests upon the spindle
and the parts are so arranged that when the flat R2 on the spindle is brought
beneath the seat the latter is more or less depressed in its socket and does not
sufficiently depress the type bed to give an impression. The spindle R is pro-
vided with an arm R³ at the end to turn it and a swing tappet R is provided
which may be moved into the path of a stud R5 on the arm and by engaging it
as the type bed descends turns the spindle sufficiently to stop the impression.
When the type bed rises again the stud R5 engages the underside of the cross
stay D and turns the full part of the spindle under the seat A* again.
motion of the tappet is limited by its slot R7 engaging the fixed stud R8 and it
is preferably arranged to fall by its own weight out of action unless it is retained
in position by the projection T of the hand lever T2 engaging the projection R
on the tappet as shown in Figures 1 and 3. The hand lever is loosely mounted
on the stud T3 and when it is turned up to allow the tappet to fall out of action
its heel T engages the stud R8 and retains it in that position.
The
The platen B and carriage E slide in guide grooves D7 fixed to the inside of the
frames and D³.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is:-
-
1. In a platen printing machine the combination with a rising and falling
feed table having a thin front edge, of a stationary front feed guide or gauge more
or less in front of such edge, substantially as herein shown and described.
2. In a platen printing machine in which the platen passes beneath a rising and
falling table to receive the paper, the arrangement whereby the table can be
turned up to expose the platen, substantially as herein shown and described.
3. A platen printing machine having a reciprocating platen provided with
grippers pivoted near the sides and branching towards each other along the front
edge of the platen, substantially as herein shown and described.
4. In a platen printing machine, the combination with a reciprocating platen,
of a fixed bed adapted to afford support to the platen whilst the impression is
made, substantially as herein shown and described.
5. In a platen printing machine the combination with a reciprocating platen
having a gap or recess in its front edge of a reciprocating carriage provided with
2

page_text: a gripper arranged to pass into said gap to lay hold of the paper, substantially
as herein shown and described.
6. In a platen printing machine the construction and arrangement of the device
for checking the impression, substantially as herein shown and described.
Dated this 13th day of December 1898.
DRACUP & NOWELL,
Patent Agents, Bradford.