Improvements in Machines for Printing Oil-cloth and the like.
Year: 1892

page_text: The decision of the Chief Examiner, acting on behalf of the Comptroller, of the
11th day of October 1892, allowed, under Section 18 of the Patents, &c.,
Act, 1883, an Amendment of this Specification.
Date of Application, 6th Feb., 1892-Accepted, 26th Mar., 1892
COMPLETE SPECIFICATION (AMENDED).
Improvements in Machines for Printing Oil-cloth and the like.
A communication from GEORGE FREDERICK EISENHARDT, Machinist, of the
City and County of Philadelphia, State of Pennsylvania, United States of
America.
I, ALFRED JULIUS BOULT of 323 High Holborn in the County of Middlesex,
M.I.M.E., 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 machines principally employed
for printing fabrics of extended width, such as oil-cloth, and the invention consists
in certain details of improvement in said machines fully set forth hereinafter and
illustrated in the accompanying drawings in which
Fig. 1 is a side elevation of part of an oil-cloth printing machine embodying the
improvements.
Fig. 2 is an enlarged end elevation of the printing block frame and adjuncts.
Fig. 3 is a sectional elevation on the line a-a Fig. 2.
Fig. 4 is an enlarged end view of part of the printing block frame.
Fig. 5 is a plan of the printing block frame.
Fig. 6 is a detached section of the inking trough.
Fig. 7 is a longitudinal sectional elevation on the plane 4 Fig. 10, showing the
parts at one end of the improved apparatus.
Fig. 8 is an external elevation showing one side of the apparatus adjacent to one
of the printing frames.
Fig. 9 is an external elevation showing the end of the apparatus opposite that
shown in Fig. 7.
Fig. 10 is a plan showing the parts illustrated in Fig. 7.
Fig. 11 is a plan showing the gearing between the cross shafts a and the main
and counter-shafts.
Figs. 12 and 13 are enlarged face views showing the cams for operating the
printing frames.
Figs. 14 and 15 are enlarged detail views of the means for operating the carrying
bands.
Fig. 16 an enlarged detail of the brake mechanism.
Fig. 17 an enlarged plan of another form of ink-trough and roller.
Fig. 18 is a view looking at the edge of the printing frame cams in the direction
of the arrow Fig. 8.
Fig. 19 is a view illustrating a modification.
A A¹
represent the side frames of the machine supporting any suitable number
of printing block frames B, each of which has two vertical end pieces D D sliding
between guides 55 the vertical movement being imparted by a revolving cam C
upon which bears a roller 6 turning upon a stud at the lower end of each end piece.

page_text: The printing block frame B is provided with a suitable cross-head connecting the
end pieces and as shown is in the form of two I-beams 7 bolted together.
Each cross-head is provided with sliding carriers 9 capable of being moved to
any desired position upon the cross-head and carrying the printing blocks 8 which
are preferably secured to the carriers by screws t extending through slots u, Fig. 5,
and these carriers are connected detachably with the cross-head by means of suitable
adjustable retainers so that any one block may be removed by simply shifting the
position of the said retainers, while the remaining blocks may be loosened and
carried to different positions on the cross-head and then tightened in place without
altering their accurate adjustment except so far as their lateral position is concerned,
and without the consumption of any other time or labour than that necessary to first
loosen and then tighten the retaining devices.
The carriers may be made in different forms and different kinds of retaining
devices may be employed. As shown each carrier 9 is in the form of a plate fitting
nicely the under level surface of the beams of the crosshead and with guide
ribs 10 10 fitting accurately the straight side edges of the beams so that while the
carriers may slide beneath the beams in contact therewith they have no other
motion either vertically or longitudinally nor can they alter their position at right
angles thereto and each printing block 8 is connected to one, two or more of said
carriers according to the size of said block and the distance between the carriers.
The retaining devices for holding the carriers in contact with the cross-head are
shown in the form of clamps 12, Figs. 1, 4 and 5, each in the form of a narrow
plate seated upon a bearing of the carrier, and one end of the clamp overlapping
one of the flanges of the I-beam and secured by means of a screw-bolt 13 which
may be loosened to permit the carrier to be slid upon the crosshead and then
tightened to secure it, and which may be further loosened to permit the clamp to
be swung to one side when the carrier and printing block have to be detached.
By thus supporting and connecting the printing blocks with the crosshead i am
enabled to make with extreme accuracy all the adjustments heretofore required
with a saving of nine-tenths of the time heretofore consumed.
The printing block frame is made so that each end piece is pivotted or otherwise
jointed to the end of the crosshead as for instance by extending a lug 14 at each
end of the crosshead between two ears 15 15 of the adjacent end piece and passing
a bolt 16 through the lug and ears as shown. This permits one end of the cross-
head to be slightly elevated or depressed without straining any of the connections
or throwing the uprights out of alignment.
To secure the desired elevation or depression of either end of the cross-head
without disturbing the position of any of the connections and without altering the
relation of the roller bearing 6 to the cam C each end piece D is made in two
sections 4, 3, one movable in respect to the other with means for moving the same
and securing them after adjustment. As shown the main piece 4 is provided with
a supplemental sliding piece 3 which carries the roller 6 and the adjusting device
consists of a screw 17 turning in an ear 18, upon the part 4, with its threaded end
fitting a threaded socket in an ear 19 of the part 3. It is evident that the requisite
vertical adjustment of the end of the crosshead may be secured by turning the
screw 17 and that this is effected without changing the position of the roller 6 in
relation to the cam C or without manipulating the connections of any of the other
parts. By thus making each end piece in two sections adjustable in respect to each
other, I am enabled to maintain constantly and without adjusting the relation of the
lug 20 to the roller 6, both of which parts are arranged upon the same section 3, the
said lug 20, engaging the latch 21 when the printing block frame is to be held up
out of printing position.
Means are provided for permitting the cross-head to be set slightly at different
angles to the end pieces without straining the connections which may then be
tightened to bind the parts firmly together. As shown the upper end of each
section 4 of each end piece is separate from the remaining portion and the two
parts are connected by means of a bolt 24 passing vertically through lugs 25, 26,

page_text: and provided with a binding nut 27. It will be evident that other connections may
be employed for jointedly connecting each end of the cross head to the adjacent
end piece to permit the horizontal and vertical adjustment of the crosshead in
respect to the end piece without straining said connection.
While the crosshead may be made in various ways so as to secure accurate
bearings for the adjustable carriers 9, it is preferable to construct the same as shown
in the drawing where between the I-beams 7, 7, at each end, is fitted a cast metal
web-piece 30 recessed to receive bolts 31 that clamp the beams thereto and provided
with a projection constituting the lug 14.
The crosshead is connected detachably to the end pieces by means of the
detachable bolts 16 before referred to, the removal of which bolts permits the
crosshead to be reversed with its blocks without disturbing any of the other parts.
A ready mode of securing the automatic reversal of the cross-head is to provide
the web pieces 30 with trunnions 32, arranged below the centre of gravity of the
crosshead so that when hooks are applied to the trunnions on pendant hoisting chains
and the latter are raised to lift the crosshead, the superior weight of the upper part
of the latter will cause it to turn readily to a reversed position throwing the
printing blocks uppermost so that they may be readily washed.
In the construction of the inking mechanism shown in Fig. 6 there is a carrier I
for each doctor 35, the said carrier consisting of a T or other angle bar 36 as long
as the doctor and a series of brackets 37 rivetted or otherwise secured to the bar
and all accurately planed to the same plane at the upper surfaces to provide a seat
for the doctor. These brackets are provided with projections 38 accurately fitting
notches 39 in the outer sides of the inking trough J the bottom of the notches
being accurately milled out to the same horizontal plane so that when the carrier is
in position in the trough with the projection 38 engaging said notches and secured
therein as by bolts 50, the carrier will be supported so as to maintain the doctor in
a line absolutely parallel with the axis of the inking roller, the doctor being
detachably clamped upon the brackets as by clamping clips 139 & screw bolts 40.
To bring the edge of the doctor absolutely parallel to the axis of the inking
roller, adjusting screws 41 are employed, turning in bearings in the brackets 37, the
head of each screw affording a bearing for the heel or outer edge of the doctor. It
will be seen that after the carrier I which constitutes the seat-bearing and the
screws 41 which constitute the edge or heel bearings of the doctor have been
accurately adjusted, the doctor may be removed from the carrier and replaced in
accurate position without any other adjustments than those requisite to loosen the
clamping devices and that the carrier I is provided with such bearings that it may
be removed and replaced in the trough without altering the accurate adjustment.
The fabric upon which a succession of impressions is to be made by a succession
of blocks 8, is carried over the platen or bed ", by means of a series of bands d
provided with points for taking hold of the fabric and passing each around two
rollers d' d² Figs. 7 and 9 which are turned intermittently only when the printing
blocks are in an elevated position, all of said blocks being raised and lowered
simultaneously.
When the ink is thick or opaque a sufficient body thereof may be applied to the
face of the inking block to make the requisite impression upon a single action of
said block, but in many cases the inks or paints are necessarily so thin or transparent
that a single impression will not apply a sufficient body of material and improved
means have therefore been devised whereby any one or more of the said printing
blocks may be held in an elevated position at alternate strokes so as to permit the
remaining block or blocks to be twice inked and twice applied upon the same
portions of the fabric, the feeding of which in such case is temporarily and for such
stroke suspended.
The cam C is so shaped that during about one-half of the revolution of the
shaft a it will hold the printing frame B in its elevated position and will then permit
it to descend by a quick motion to bring the type or block against the material.
Heretofore the weight of the printing frame has usually been depended upon-to-

page_text: ensure its descent but my correspondent has found that in-printing with rapidity it
is necessary to accelerate the downward movement of the said frame, and in order
to avoid the objections incident to the use of springs or weights for-the-purposes of
such acceleration, use is made of a cam which operates positively to effect the
desired movement. Such eam may be constructed in any suitable manner to revolve
or reciprocate-but it is preferable to provide the cam-C-with-a-supplemental-cam-
In printing with rapidity it is necessary to accelerate the downward movement of the said
frame. For the purposes of such acceleration use is made of a cam which operates
positively to effect the desired movement. It is preferable to provide the cam C with a
supplemental cam f see Figs. 8, 12, 13, that comes above the roller 6 as the latter
passes the point of the cam C, and thereby draws down the roller and the printing
frame with a positive action throughout the whole extent of the downward move-
ment and further serves to give the final impression of the printing block against
the material.
The cam may be a fixed part of the cam C but it is preferred to make it
movable in whole or in part so as to also secure means for holding the printing
frame in its elevated position whenever it is necessary for one of the other blocks
to make two successive impressions.
Thus, the cam fis upon an arm or lever 50 pivotted at 51 to a side piece 52 of
the cam C so that when the cam is in the position shown in Fig. 13, and the
shaft a revolves in the direction of the arrow the said cam f will come above the
roller 6 and depress the printing frame positively the roller 6 passing from
the pivotted portion of the cam beneath an inner fixed flange f' upon the side piece
or plate 52 fixed to the cam C which flange f¹ is of such a curve as to draw down
the roller 6 to its full extent with a final movement that gives the requisite terminal
pressure to the printing block. When however the printing frame is not to descend
the cam is swung to bring its point against the edge of the cam C as in Figs. 8
and 12 forming a continuation of the latter so that the said cam f' will pass below
the roller 6 when the latter is not to descend with the printing frame. A spring-
locking arm p engages notches in the cam lever 50 and tends to hold it in either
position to which it is set.
The printing frame is held at the limit of its upward movement when it is to be
kept out of printing position by means of the catch or detent 21, engaging the
lug 20, upon each side of the printing frame, and, as shown in Fig. , the said
catch 21, is part of a catch lever y pivoted at æ, to the frame A, and carrying at
the lower end a roller 54, adapted to engage the outwardly projecting edges of a
fan-tailed end 55, of the cam lever 50, so that when the catch and lever are in the
position shown in Fig. 8. the roller 54, will pass to the inner side or edge of the
end 55, and the further revolution of the shaft a, will cause the cam, to be swung
down towards the cam C, to pass beneath the roller 6. When on the contrary the
lever g, and catch are swung to the right to release the printing frame then
the roller 54, will pass to the outside of the end 55, and its contact with the latter
will swing the cam, outward so that it will pass above the lug or roller 6, and will
draw the latter and the printing frame downward.
The cams C, levers 9, and adjuncts are duplicated on opposite sides of the
machine and each pair of levers g, is on a transverse rock shaft a, to which is
secured a weighted lever 63, Fig. 7, which tends to automatically carry the
levers g, and their catches from the lugs or stops 20. In order that the catches or
detents 21, may be brought to engage the lugs or stops, a reciprocating bar 58, is
made use of, sliding within the frame and provided with pawls 59, each pivoted to
a pin 60, and having a lug 61, so that it may be turned to the point shown in full
lines, Fig. 7, to make contact with the adjacent lever 63, or back to the position
shown in dotted lines so as to be out of contact with the lever. Thus all of the pawls
that are thrown to the position shown in full lines will at one movement of the
bar 58, make contact with the adjacent levers 63, and will carry the connected
levers g, and detents 21, into a position to engage the stops 20, while at the points
where the pawls 59, are turned back to the position shown in dotted lines the

page_text: weighted levers 63, will hold the levers g, and detents 21, away so as not to make
contact with the stops. The detents may be held in contact with the stops by
reversible dogs 64, pivoted to the frame in the path of the levers g, Fig. 8.
In order to release each lever g, and detent 21, each cam C, is provided with a
swell 70, which slightly lifts the frame B, at the beginning of each movement to
thereby permit the detent 21, to escape contact with the lug 20, if its connected
lever 63, is free to swing.
It will therefore be seen that by adjusting the pawls 59, as required, any one of
the printing frames may be caused to descend either at each revolution, or at each
alternate revolution of the cam shaft, and by turning forward any pawl-50 dog 64,
the connected frame B, may be permanently held up.
It will be evident that when reciprocating cams are used as shown in Fig. 19,
they may be provided with movable sections f², for positively drawing down the
frames, and that like means may be employed for throwing such sections into and
out of operation with the same effect as when revolving cams are employed as,
for instance a reciprocating bar 58, with pawl cams 59, engaging arms f³, of
said sections, when said pawl cams are in the position shown in dotted lines in
said fig.
Any of the various mechanical movements may be employed for imparting
sliding movements to the bar 58, at alternate strokes. Thus a shaft 71, Figs. 7
and 10 having a gear 72, is geared through the medium of a pinion 73, of half the
size with a shaft 77, so that the shaft 71, makes one revolution to every two
revolutions of the shaft 77, and said shaft 71 carries a cam 74, that operates upon
a bell-crank lever 75, connected with the bar 58, to move it in one direction while
a spring 76, imparts the reverse movement to the lever 75, and bar 58.
Each movement of the feeding bands d, is sufficient to carry the material
operated upon from a position beneath one block to its proper position to be printed
by the next block, and it is exceedingly important that each movement shall bring
the material to register with the utmost precision so that the successive prints shall
be effected without any improper overlapping of the impressions. To secure this
result there are combined with the devices of any suitable kind for intermittently
rotating the band carrying shafts, additional means for carrying each shaft and
the bands to the exact position at the completion of each movement. One form of
registering device as illustrated in the drawing Fig. 7, consists of V-shaped
notches y, formed in the ends of arms 79, on a shaft 82, carrying the wheel or
roller d², and a reciprocating dog i, having an angular end adapted to said notches
and so arranged that when said end of the dog is fully in any one of said notches the
band carrying wheel will be exactly in the position required to hold the band, and
the material in position to properly register with the printing blocks. Means are
employed for forcibly moving the dog i, back and forth at proper intervals and
after the band carrying wheel has been moved by the feeding mechanism, the
movement of the dog i, will bring the wheel exactly to its position if said wheel has
failed to move to its full extent or has moved to a greater extent than is necessary.
As shown the dog i, is carried by an arm 90, pivoted at 85, and vibrated by a
cam 89 on the shaft 77, and each notch y, is formed in a block s, adjustable in
a slot in the appropriate arm 79, by an adjusting screw s', to set it in exact
position.
The mechanism for feeding the bands may be of any suitable character, but, as
shown, consists of a ratchet wheel 81, Figs. 7, 10, 14 and 15, upon the shaft 82,
carrying the band wheel d³, at one end of the machine, and a reciprocating pawl h,
which engages said ratchet wheel and turns the same with the shaft and band
carrying wheels in the direction of the arrow, Figs. 7 and 15, at each forward
movement when the pawl is down, but a contact piece 83, is carried into position
at every alternate stroke to hold up the pawl by contact with an arm m, on the
pawl shaft so that the fabric in such case is only fed at every alternate revolution,
as is necessary when the printing blocks or any of them make two successive
impressions at the same point. As shown, the contact piece 83, is upon a lever 84,

page_text: pivoted at 85, and having a toe bearing upon a cam 86, on a shaft 71, which as it
revolves once to every alternate stroke of the printing frame causes the pawl h, to
be held out of action at every alternate stroke. The pawl h, is carried by arms 87,
swinging upon the shaft 82, and having teeth gearing with sectors 89, Figs. 7
and 10, swinging upon the fulcrum 85, and lifted at every revolution of the shaft 77,
by a cam 88, on said shaft, and said shaft 77, also carries the cam 89, that operates
upon the toe of the arm 90, as stated. A spring actuated rod n, bears on a toe o,
on the pawl shaft and tends to throw it down against the ratchet.
To avoid the necessity of moving the full weight of the printing frame, it is
counterbalanced as by weights E, Fig. 8 hung to a lever arm 150, pivoted to the
frame and each having a short arm engaging bearings on the adjacent side bar of
the frame B.
The ink trough is supported on wheels c, c, travelling on rails b, b, and is movable
back and forth below the printing frame, and it is desirable to lock the ink trough
at the limit of its position after each movement so that it cannot be displaced and
brought accidentally against the printing frame, when the latter is down or movable.
For this reason there are combined with each inking trough devices, Figs. 8 and 9,
connected with a crank or crank arm 91, on a shaft 102 through the medium of a
lever 93, and links or connecting bars 92, 94, and bring the said shaft to a position
to carry the cranks to a dead centre at the limit of each movement.
These parts
may be driven by different mechanisms. Thus, a vibratory lever 95, is driven by
a crank 96, on a shaft 116, the pin of which crank enters a slot j, in said lever, and
the latter is connected by a rod 97, with an arm 99, on a shaft 98, which arm 99,
carries a pawl 100, engaging with the notches or teeth of a ratchet wheel 101,
upon the shaft 98, and the latter is geared with the shaft 102, through the medium
of gears 103, 104. The gears are so proportioned that as the arm 99, and its
pawl 100 completes each movement the crank of the shaft 102, will be in line with
the connecting rod 92, and the parts will be locked in position.
The above described parts may be driven in any suitable manner from the power
shaft 110. It is preferable however to gear said shaft 110, through the medium of
gears 111, 112, with a central driving shaft 113, running the full length of the
machine and having at one end a pinion 114, for gearing with a wheel 115, on the
shaft 116, that carries the crank 96. Preferably at a point between each pair of
printing frames B, the driving shaft 113, has a pinion 117, gearing with a
wheel 118, on a short counter shaft 119, parallel with and below said driving shaft,
and at each end of the counter shaft is a beveled pinion 120, gearing with a bevel
wheel 121, upon the adjacent cross-shaft a, the two bevel wheels 121, being on
opposite sides of said counter shaft 119. By this means the rotation of the counter
shaft 119, is the means of driving both cross shafts a, a, in the same direction. At
the opposite end of the driving shaft 113, Figs. 7 and 10, is a pinion 125, that gears
with a toothed wheel 126, on the counter shaft 127, that carries on its end a
beveled pinion 122, gearing with a bevel wheel 123, on the shaft 77.
As the inking troughs are very heavy, weighing, with their attachments in a
large machine two tons each, and as such machines are operated quite rapidly,
there is a tendency of the moving parts, after they are started, to carry the inter-
mittently moving shafts beyond their proper position. To overcome this there is
combined with one of the shafts, as for instance the shaft 102, a friction or brake
wheel 130, Fig. 16, around which passes a flexible friction band 131, secured to the
opposite projecting arms of a three arm lever D, pivoted to the frame of the
machine, one arm 132, of the lever carrying a roller that bears on a cam 133, on
the shaft 102. Said cam 133, is so constructed as to lift the arm 132, to rock the
lever and contract the band after the said moving parts acquire their maximum
speed and thereby apply such friction to the friction wheel as to resist the
momentum of the parts and prevent them from travelling at too great a speed, and
obviates any tendency to throw the shaft or parts connected thereto, and also acts
to bring the parts gradually to a state of rest without a jar at the termination of their
movements.

page_text: It will be obvious that other friction devices, as ordinary air brakes, dash pots,
etc. may be substituted for the brake devices described.
There is a tendency in all inking devices of oil cloth machines, upon the part of
the paint upon the inking roll to run off the end of the roll and on to the bearings
and thence to the frame. The trough Fig. 17, is therefore provided with a
recess w, into which any material that works from the roll will flow instead of
passing outside the trough. But in order to prevent the tendency of the print to
work from the roll the latter is provided at the end with a flange t. This flange
may be upon the roll itself, but is preferably stationary in the form of a plate or
disc projecting very slightly beyond the surface of the roll and secured to the
adjacent bearing 140. This it is found reduces to a minimum the tendency of the
paint to work off the roll and on to and outside of the bearing.
Having now particularly described and ascertained the nature of the said inven-
tion as communicated to me by my foreign correspondent and in what manner the
same is to be performed I declare that what I claim is :-
―
1. The combination of a cross-head extending across the machine, a series of
printing blocks, and clamps secured to the printing blocks and engaging the cross-
head, whereby the printing blocks may be adjusted on said cross-head, substantially
as described.
2. The combination with the cross-head extending across the machine, and
printing blocks, of a series of carriers connected with said blocks and each guided
to slide upon the underside of the cross-head, and retaining devices for connecting
each carrier detachably to the cross-head, substantially as set forth.
3. The combination with the cross-head, of printing blocks, a series of carriers
adapted to be connected to said printing blocks and provided with guides for
determining accurately the position of each carrier upon the cross-head, and
means for securing each carrier detachably to the underside of the cross-head,
substantially as set forth.
4. The combination with the cross-head, of printing blocks, and carriers therefor,
each in the form of a plate having guide ribs 10, and clamps for connecting the
carriers detachably with the cross-head, substantially as set forth.
5. The combination with a cross-head consisting of parallel I-beams having the
lower faces and outer edges accurately planed, of printing blocks and a series of
carriers therefor, each consisting of a plate having guide ribs 10, fitted accurately
to said outer edges and provided with clamps 12, substantially as set forth.
6. The combination of the frame, of a block printing machine having guides, a
cross-head for supporting the printing blocks, vertical end pieces on the cross-head
movable in said guides and horizontal joints connecting the cross-head and end
pieces, substantially as set forth.
7. The combination of the frame of a block printing machine having guides, a
cross-head for supporting the printing blocks, vertical end pieces on the cross-head,
movable in said guides, and vertical joints connecting the end pieces and cross-head,
substantially as set forth.
8. The combination of the frame of a block printing machine, a cross-head for
supporting the printing blocks, vertical end pieces on said cross-head movable in
guides of the frame, and vertical and horizontal joints connecting the cross head
and the end pieces, substantially as and for the purpose set forth.
9. In a block printing machine the combination of the cross-head for the printing
blocks and end pieces to which the cross-head is detachably connected and trunnions
projecting from the cross-head and arranged below the centre of gravity thereof,
substantially as and for the purpose set forth.
10. The combination in a printing machine having an impression surface and a
printing surface, of an inking roller an ink trough, a doctor therein, a bar, a series
of clamps on said bar for holding the doctor, and means for supporting said bar and
clamps from the edge of the ink trough, substantially as described.
11. In a block printing machine the combination with the cross-head for the

page_text: printing blocks consisting of connected parallel I-beams and intermediate web
pieces provided with projecting lugs, of end pieces having ears and bolts passing
through the lugs and ears, and guides for the end pieces, substantially as described.
12. The combination with the ink trough and inking roller, of a doctor, means
for detachably supporting the doctor within the trough, adjustable bearings at the
rear edge of the doctor, and clamps for securing the doctor in position upon said
supporting means, substantially as set forth.
13. The combination of the carrier, the trough having bearings for detachably
supporting the carrier, the doctor seated upon the carrier, and a series of bearings
adjustable on said carrier and arranged to define the position of the doctor thereon,
the construction being such that the carrier and doctor may be removed and
replaced without changing their relative position, substantially as described.
14. The combination of the carrier, the trough having bearings detachably
supporting the carrier, the doctor movably seated on the carrier, adjusting screws
between the carrier and the doctor, and constituting bearings for the heel of the
latter, and means for clamping the doctor to the carrier substantially as described.
15. The combination with the inking roller and the ink trough having notches
at the side constituting bearings, of a carrier provided with projections fitting said
notches, retaining devices for the projections, a doctor detachably seated on the
carrier, and adjusting screws at the heel of the doctor, substantially as described.
16. The combination with the inking roller and the ink trough provided with
notches at the side, of a carrier consisting of a bar and brackets secured thereto,
said brackets having projections fitting the notches, retaining screws, a doctor
seated on the brackets, and clamps for the doctor, substantially as described.
17. The combination with the inking roller and the ink trough therefor provided
with notches in the side wall, of a carrier consisting of an angle bar and two or
more brackets secured thereto, said brackets having rear projections fitting said
notches, securing bolts, a doctor seated on the brackets, detachable clamps, and
adjusting screws between the heel of the doctor, and said brackets, substantially as
described.
18. The combination with the printing frame, revolving cams for raising said
frames, of supplemental eams arranged and operating to depress said frames
immediately as the elevating cams cease their netion, substantially as set forth.
10. 18. The combination with the printing frame, of an oil cloth machine, of cams
for lifting said frame and cams for depressing said frame provided with projections
arranged to impart the final pressure in printing and means for throwing the
depressing cams out of operation to maintain the printing frame elevated, sub-
stantially as set forth.
20. 19. The combination with the reciprocating frames and the cams for raising
the same, of secondary cams, and means for adjusting the secondary cams to depress
the frames or to maintain them elevated, substantially as set forth.
21. 20. The combination with the printing frames of an oil cloth printing machine,
of cams for elevating the said frames, secondary cams for depressing the same, and
means for automatically.shifting the secondary cams at intervals into and out of
action, substantially as set forth.
22. 21. The combination with the printing frames, of rotating cams arranged to
make contact with rolls upon the frames, and provided with secondary cams
adjustable to engage the rolls from above or below, substantially as set forth.
23. 22. The combination of the printing frames, rotating cams for raising said
frames, and secondary cams pivoted to the rotating cams and means for shifting the
secondary cams to carry them above or below the rolls on the frames, substantially
as described.
24 23. The combination of a printing frame having vertical side pieces and
rollers 6, and cams C, arranged to act upon the rollers at one side, and movable
cams f, arranged to act upon the rollers at the opposite side when in one position,
and to constitute extensions of the cams C, when in the other position, substantially
as set forth.

page_text: 25. 24. The combination with the printing frame, side pieces and rollers 6, of
revolving cams C, below said rollers, and supplemental cams f. pivoted to the
cams C, and adjustable to positions to pass below or above the roller 6, substantially
as set forth.
26. 25. The combination of the printing frame, stops, cams, for lifting the frame,
movable cams for depressing the frame, a detent, and connections between the
movable cam and the detent arranged to shift the movable cam according to the
position of the detent, substantially as described.
2726. The combination of the printing frame, its stop and detent, cam for
elevating the frame, movable cam for depressing the frame, and an arm y, connected
with the detent and arranged in position to shift the movable cam according to the
position of said arm, substantially as set forth.
28. 27. The combination of the printing frame, stop, detent and arm 9, of a
revolving cam C, and cam lever pivoted to the cam C, and having a wing shaped
projection 55 arranged to engage a projection on the arm & g, to shift the same,
substantially as set forth.
20. 28. The combination with the printing frame and stops at opposite sides
thereof, of detents connected to a transverse shaft a, means for rocking said shaft
in one direction and a longitudinal reciprocating bar 58, having a pawl movable
thereon for rocking the shaft in the opposite direction, substantially as set forth.
30. 29. The combination with the printing frames, stops, shafts a, detents, and
reciprocating bar 58, of pawls on the bar adapted to be moved into and out of
position to operate the shafts, substantially as described.
31. 30. The combination with the printing frame, stops, shafts c, detents, levers g,
and means for rocking the shaft, of dogs 64, substantially as and for the purpose
set forth.
32. The combination with the carrying bands and devices for intermittently
moving said bands, of-means for bringing said devices to their exact position
in either-direction at the termination-of-enel movement, substantially as set forth.
33. The combination with the carrying bands and supports, of a shaft provided
with arms having V-shaped notches and a dog having-a-V-shaped end and means
for carrying the end of the dog into one of the notches at the termination of each
movement of the band, substantially as described.
34. The combination with the shaft, its arms and reciprocating dog i; of notched
blocks-s, adjustable upon said arms, substantially as set forth.
35. 31. The combination with the printing frame of levers pivoted to the side
frames of the machine and engaging bearings at the lower ends of the side pieces
of the printing frames and weights on said levers, substantially as described.
36. 32. The combination with the ink troughs, of an operating crank shaft and
connections including a rod connected with said crank and arranged to occupy a
position on the dead centre when the ink troughs are in either of their extreme
positions, and means for intermittently rotating said shaft, substantially as set
forth.
37. 33. The combination with the ink trough, of an operating crank-shaft ;
bars 92 and 94, and an intermediate lever connecting said bars, substantially as and
for the purpose described.
38. 34. The combination with the ink trough, crank shaft 102, lever 93, and
connecting bars 92, 94, of the crank-shaft 116, pivoted lever 95, connected with
the latter, shaft 98, a ratchet thereon, arm 99, carrying a pawl engaging the
ratchet, rod 97, connecting said arm and lever 95, and gearing connecting the
shafts 98, and 102, substantially as and for the purpose set forth.
39. 35. The combination with the reciprocating trough, driving shafts and con-
nections, of a brake device and means for applying the same as the troughs reach
the limit of their movements in either direction, substantially as set forth.
40. 36. The combination of the reciprocating troughs, shaft and connections for
driving the same, of a pulley upon said shaft, a band encircling said pulley, a
lever connected with the band and a cam arranged to swing the lever to tighten
B

page_text: the band as the troughs approach the limit of their movement in either direction,
substantially as set forth.
44. 37. The combination with the main frame of the machine and a series of
printing frames, cross-shafts, and frame operating devices, of a continuous driving
shaft running the length of the machine, a counter-shaft to each pair of printing
frames, and gears between each counter-shaft and said driving shaft, and between
the cross-shafts of each pair of printing frames and each counter-shaft, substantially
as set forth.
42. 38. The combinations with the printing frames, the continuous driving shaft
running the length of the machine, the cross shafts, and connections between the
latter and said frames, of a counter-shaft for each pair of cross-shafts gearing
between said driving shaft and counter-shafts, and pinions at the ends of the latter
shafts and bevel wheels upon each pair of adjacent cross-shafts, said latter wheels
being upon opposite sides of the counter-shafts, substantially as set forth.
43. 39. The combination with the printing frames, cross-shafts and connections
between the latter and the frames, of a continuous driving shaft extending the
length of the machine a counter-shaft for each pair of cross-shafts, said counter-
shafts being parallel with and below the driving shaft and geared thereto, and
gearing between each counter shaft, and the adjacent pair of cross-shafts, sub-
stantially as described.
44. The combination in the ink-trough of-un inking-roller-and an independent
well or receptacle-w-in the trough adjacent to ench-end-of-said rollers, substantially
as set forth.
45. The combination with the inking roller of a plate forming a flange projecting
beyond-the-surface of the roll, substantially as described.
Dated this 6th day of February 1892.
ALFRED J. BOULT,
Chartered Patent Agent.