Improvements in Photographic Printing Machines.
Year: 1886

page_text: Date of Application, 23rd Aug., 1886.
Complete Left, 23rd May, 1887.
Complete Accepted, 24th June, 1887.
RESUAVE
Improvements in Photographic Printing Machines.
We, JOHN URIE, Senior, and JOHN URIE, Junior, both of 83 Jamaica Street,
Glasgow, Lanarkshire, Photographic Artists, do hereby declare the nature of our
invention to be as follows :-
:-
Our Invention has reference to photographic printing machines, which print the
pictures from the transparent negatives on the sensitised paper automatically in long
lengths by artificial fight. And the Invention comprises a new or improved
construction, or arrangement and combination of the mechanism for so automatically
printing the photographs in said printing machines:-That is, of the mechanism
which performs all the necessary operations, of putting off and on the light so as to
give the paper the proper period of exposure to the light, and also release the paper
from between the negative and its pressure pad, and shifts the paper the required
distances after each print for the new picture, and presses it against the negative
again all intermittently and in proper sequential time by the machine or mechanism
itself when it has been set to work, with the roll of paper in place.
The nature and novelty of the invention, or construction and arrangement of the
mechanisin, consist all as follows. The roll of sensitised paper and all the working
mechanism are enclosed in a moderately sized longitudinal rectangular box, having
the aperture in the middle of the top or lid, for inserting and securing the set or
"nest" of various sized frames to fix the negatives in; the gas or other artificial
light used being arranged over the aperture and negative, so as to be raised further
from or lowered near to the negative to regulate the strength of light desired for the
work or density of negative in hand for the time being. The roll of sensitised paper
to be printed is mounted on a spool or bobbin in the upper part of one end of the
close dark box, and led along close over its pressing pad and under the negative and
opening in the centre and top of box, on to and round a large measuring drum
through and between this and a spring gripping roller, over the latter, either down

page_text: nto a deep dark chamber or recess for receiving the printed strip or web, or this
may be led, as so printed and measured, on to a special winding-up drum or bobbin at
the other end of the box under the supply bobbin, all so far mounted much as in
former nachines, but with the journals of rollers or drums carried by bush bearings
in the sides of the box. But by this invention the whole mechanism for performing
and regulating the work and movements automatically is new, and much more simple
than in former machines of this kind. This mechanism requires no special frame,
and consists of clock mechanisin or reducing wheel gear driven by a chain and
weight, or by an endless chain, with weight hooked on to one line of the chain and
shifted to the top as it runs down to the bottom, saving all winding up; which
arrangement is also applicable for driving the paper-measuring or the taking-up
drums direct. This clock or motor gearing, which actuates the whole regulating
mechanism, could also be driven by a strong spring and. be wound up from time to
time as required, and would be regulated to various speeds by a fan spindle with
radial arms and air vanes outside, which could be shifted out and in radially by hand
on the arms, to suit the speed of the gearing and motor desired, and also of the radial
pin barrel actuated by it, to the time of each revolution of this barrel desired to
actuate the lever mechanism, which gives and regulates the necessary intermediate
motions sequentially as hereinbefore referred to. This time speed pin barrel, turned
at any regulated speed by the clockwork wheel gearing and regulating fan as
described, makes a turn in say from one to three minutes, and has four, five, six, or
other number of annular rows of pins all of equal length; the first set commencing
with one pin in the circle, and the second with two pins in the circle, and so on, all
so as to give from one to six actions to the lever, according to the set of pins it is
brought opposite. The journal bearings of this pin barrel, and its actuating clock
mechanism, require no special framing, but are secured to the bottom of the box
inside, and the barrel is set transverse-wise near the middle of the box, and has
ranged parallel to it a double armed crank or bar lever mounted loose on a transverse
horizontal spindle, which traverses through its crank journals, and works in slide
journal bearings in the sides of the box, all parallel and horizontal to the axis of
the said pin barrel and a little in front of the pins. This horizontal spindle has a
short adjustable lever fixed on it inside the box, projecting out in the parallel plane of
the pins, so as to be actuated by any set of these pins, according as the spindle is
drawn forward in front of the box by a handle on it outside. The lever of this
spindle would rest on the long crank bar, carried by the double arms on its spindle,
and depress this also, as well as its acting lever, cach time a pin came round in the
circle, and this double-armed lever would carry a long weighted lover, preferably at
the back end, and which would have a counterbalancing weight on it, which would
always bring the lever back to its normal position, while it would have another lever
which would actuate the short lever of a gas tap or valve, so as to shut it each time
the pin came round. This double bar lever would also at each end carry a vertical
reciprocating frame in guides on the side of the box, secured to and carrying the pad
on the top of them, for pressing the paper against the negative, with regulating
spiral or other springs on and between joint stems on the lever, and on the under side
of the lower transverse bar of the guide frame; all so that as the gas was shut off by
the action of the levers, the pressing pad and frame carrying it, would be lowered, so
as to allow the paper passing over it to be drawn along the measured distance
required over its barrel. This measuring of the paper is effected by another lever on
the front of this double-armed bar crank projecting out below the rim of the
measuring drum, preferably on the front end close inside the box, with a vertical
acting oscillating pawl on it, projecting upwards so as to take into divisional
projections on the rim of the measuring wheel; these projections being so divided
round the rim of the wheel as to decide the length of paper to be measured off at each
action. The vertical projecting pawl on the point of the lever is always pressed
outwards by a light spring on it, so that, after each action of the lover, it is easily
drawn down by the counterbalance weight on the other end of the double crank bar,

page_text: clear of the projection on the drum it had stopped, and so leave the barrel clear to be
turned another measured division the next time it was left free to turn by the
releasing of the pad and paper, above the vertical oscillating frame, and come round
against the pawl on the stop lever at the next operation. The falling of the balance
weight would also raise the frame and grip the paper between the pad and the
negative just before the pawl on the stopping lever released the wheel for its next
action as described; the balance weight also raising the lever which had shut the gas
off, and allow a counterweight or spring acting on the short lover on the gas tap or
valve to open it again to the regulated distance, and position, ready for the double
crank lever to again shut it off, when the pins in the barrel came round and actuated
it through the regulating lever on the traversing spindle.
Instead of the double armed lever drawing down the pad under and to release the
paper as described, the pad could be anade stationary, and the lever made to lift the
printing frame in an equivalent manner off the pad to release the paper, by its two
ends direct, or mounted on hinges along one side, the lever or springs not acting to
free the paper until the gas lever had shut the light off, all as described under the
first arrangement.
000

page_text: Improvements in Photographic Printing Machines.
We, JOHN URIE, Senior, and JOHN URIE, Junior, both of 83 Jamaica Street,
Glasgow, Lanarkshire, Photographic Artists, do hereby declare the nature of our
Invention and in what manner the same is to be performed to ho particularly
described and ascertained in and by the following statement in writing, reference
being had to the accompanying Two Sheets of Drawings, and to the letters and
figures marked thereon, that is to say :-
Our Invention has reference to photographic printing machines, which print the
pictures from the transparent negatives on the sensitised paper automatically in long
lengths by artificial light. And the invention comprises a new or improved
construction, or arrangement and combination of the mechanism for so automatically
printing the photographs in said printing mechanism.-That is, of the mechanism
which performs all the necessary operations, of putting off and on the light so us
to give the paper the proper period of exposure to the light to suit the density or
opacity of the negatives, and also release the paper from between the negative and
its pressure pad, and shift the paper the required distances after each print for
the new picture, and press it against the negative again all intermittently and in
proper sequential time by the machine or mechanism itself when it has been set to
work, with the roll of paper in place.
And in order that our said Invention, and the manner of performing or carrying
the same into effect or practice may be properly understood, we have hereunto
appended Two explanatory Sheets of Drawings, in which the same reference letters
are used to indicate corresponding parts in all the figures where shown. Figures 1
and 2 on Sheet 1, are longitudinal and transverse vertical sections respectively, and
Figure 3 a plan corresponding to Figure 1, with the whole top of the enclosing box H
removed, all of one modification of our improved arrangement and combination of
mechanism for automatically printing photographs from glass or other transparent
negatives by artificial light in long web or strip lengths of sensitised paper, in
accordance with the improvements of our invention, and more particularly suited for
printing the smaller class of work, being shown as driven and controlled by clockwork.
While Figures 4 and 5 on Sheet 2, are corresponding side and end elevations partly in
section, and Figure 6 a plan corresponding to Figure 4, all of another modification of
our improved mechanism for automatically printing photographs from the negatives
by artificial light, and more particularly suited for the larger class of work and broad
webs of sensitised paper, and driven at uniformu regulated speeds by bands and motive
power from any convenient motive power shaft, and through wheel gearing for the
intermittent motions. And Figures 7 and 8 are enlarged sectional side and end
sections of an arrangement of mechanism for automatically printing the titles by
type on each photograph while the photographic printing is being done.
Referring to Figures 1, 2 and 3 on Sheet 1 of these Drawings :-the nature and
novelty of the invention, or construction and arrangement of the mechanism, consist
all as follows. The roll A, of sensitised paper z, and all the working mechanism for
traversing and printing it, are in this arrangement shown as enclosed in a moderately
sized longitudinal rectangular box H, with a close removable door h³, in front and two
side, preferably sliding lids H¹, h', h³, on top for putting in and taking out the paper

page_text: and getting at the machinery, while a rectangular aperture his formed in the central
fixed part of the lid h, for inserting the glass or other negative N, and its frame B, or
"nest" of various sized frames or slides b, to fit the negatives in, preferably secured
in the recess h, by springs and swivel catches 6', 6', on each side; the gas burners Y,
or other artificial light used being arranged over the aperture k, and negative N, so as to
be raised further from, or lowered nearer to the negative by the stand gas pipe O, and
pinching screw o, to regulate the strength of light desired for the work or density of
negative in hand for the time being, preferably with an intermediate water vessel h³,
with glass bottom resting over the aperature h, and negative N, to keep the latter cool.
The roll of sensitised paper z to be printed is mounted on a flanged spool or bobbin A,
in the upper part of one end of the close dark box H, and led over a guide pulley z
and along close over its pressing pad C, and the negativo N, and opening h, in the centre
and top of box H, under a guide pulley, and on to and round a large measuring
drum D, through and preferably between this and a spring gripping roller ³, over
the latter D, either down through the bottom of the box Hat %, into a deep dark
chamber or recess not shown in the Drawings, for receiving the printed strip or web;
or it might be out through the side of the box as indicated at Z, into a dark room or
box; or otherwise the paper as so printed and measured may be led on to a special
winding-up drum or bobbin at the other end of the box under the supply bobbin A, as
dotted in at 7, preferably having the journals of the rollers or drums all carried by
bush bearings in side standards H³, or in the sides of the box H.
The new or improved mechanism for performing and regulating the work and
movements automatically consists essentially as follows,-of a clock mechanism and
gear G, G', (or it might be other motive power reducing wheel gear) actuated by a chain
or cord, and weight g', or it might be by an endless chain, with weight hooked on to
one line of the chain and shifted to the top as it runs down to the bottom, saving all
winding up; which arrangement is also applicable for driving the paper-measuring, or
the taking up drum D direct by passing the chain E, over a pulley E direct actuated by
weight E. This clock G, G', or it might be other motor gearing which actuates
the whole regulating mechanism, could also be driven by a strong spring and be
wound up from time to time as required, and in either case be regulated to
various speeds by a fan spindle g³, with radial arms G³, and air vanes G³, outside,
which latter would be shifted out and in radially by hand on the arms G³, to
regulate the speed of its spindle g, to suit the speed of the main gearing G. and
motor clock G desired, and also of the radial pin barrel I, i, actuated by it, to the
time of each revolution of this barrel desired to actuate the lever mechanisin L,L',L", M,
which gives and regulates the necessary intermittent motions in order or sequentially
to print the paper as hereinbefore referred to. This time speed pin barrel I, i, turned
at any desired regulated speed by the clockwork wheel gearing and regulating fan as
described, makes a turn in say from one to three minutes, and would have four, five,
six, or other number of annular rows of pins i, all of equal length, eight being shown
in the Drawings, numbered 1' to I"; the first set I' commencing with one pin i, in the
circle, and so on, all so as to give from one to eight actions to the lever L, according to
the set of pins i, it is brought opposite. The journal bearings 1" of this pin barrel 1,
and its actuating clock mechanism G G¹, is carried in the lower part of the side
frames H2, close to the motor clock G, which requires no special framing, being secured
to the bottom of the enclosing box H, inside, and the pin timing speed barrel I i, is set
transversely across near the middle of the box H; and has arranged parallel to it a double
armed crank or har lever M, mounted loose on the transverse horizontal spindle L",
which traverses through its crank journal arms M', and works in slide journal bearings
in the sides of the box H, all parallel and horizontal to the axis of the said pin barrel I
and a little in front of the pins i. This horizontal spindle L" has the short adjustable
lever L. L", fixed on it inside the box H, projecting out in the parallel plane of the,
pins i, so as to be actuated by any set of these pins i, according as the spindle L", is
pushed in or drawn forward at the front of the box H, by a handle L on it outside.
The lever L of this spindle L" would rest on the long crank bar M, carried by the
double arms M' on its spindle, and depress this lever M, M³, as well as its acting

page_text: lever L, each time a pin i came round in the circle, and this double-armed lever M, M³,
would carry a long weighted lever M, preferably at the front end, having a counter
acting-balancing weight M, on it, or it might be an equivalent spring which would
always bring the levers M. and L'up to their normal position; while it would have
another lever c', preferably at the back, which would actuate the short lever of a gas
tap or valve, so as to nearly shut it each time the pin i of a set came round against
the power of the weighted lever e³, which would always open the tap c, as soon as the
lever arrangement L, M, came back to their normal position. This double har M M',
would also at each end carry a vertical reciprocating frame C, in guides (, on
the sides of the frames H³, of the mechanism, secured to and carrying the board and
pad C, on the top of them, for pressing the paper 2, against the negative N, with
regulating spiral or other springs m', on and between joint stems m, on the lever M,
and on the under side of the lower transverse bar of the guide and pad frame C
all so that when the gas was first shut off by the action of the levers Land M, and c, c',
the pressing pad C and frame C³, carrying it, would be lowered, so as to allow the
paper 2, passing over it to be drawn along the measured distance required over its
barrel D. This measuring of the paper is regulated by another levor 1, on the
front arm of this double-armed bar M, M', projecting out below the rim of the
measuring drum D, preferably on the front end close inside the box H, with a vertical
acting oscillating spring stop pawl on it, projecting upwards so as to take on to
divisional stop projections on the front rim of the measuring wheel D; these
projections, being so divided round the rim of the wheel Das to decide the
length of paper z to be measured off at each action, eight projections d², being shown
on the front side, and twelve d³ on the back, which would give two different sizes of
paper measured for this drum D by reversing the drum by its spindle d, in its
bearings in the frames H. The vertical projecting pawl, on the point of the
lever is always pressed outwards by a light spring on it, so that, after each action
of the lever l, it is easily drawn down by the counter-balance weight M³, on the other
end of the double crank bar M¹, clear of the projection d², on the drum D, it had
stopped, and so leave the barrel D, clear to be turned another measured division the
next time it was left free to turn by the releasing of the pad C and paper 2, (by the
power of the chain and weight E', E passed over the pulley E, on the spindle d, of
the drum D) above the vortical oscillating frame, and come round against the pawl
on the stop lever to stop it at the next operation or measured distance of paper. The
falling of the balance weight M³, would also raise the lever M and frame and grip
the paper z between the pad C and the negative N just before the pawl on the
stopping lever released the stops d² and drum D, for its next action as described ;
the balance weight M³ also raising the lover c' which had shut the gas off, and allow
the counter-weighted lever (or it might be a spring acting on the short lever)
on the gas tap or valve c, to open this tape again to the regulated distance and position
to give the light desired; all ready for the double crank lever M, M to again shut
it off, by the lever c³, when the pins in the barrel I came round and actuated it
through the regulating lover L on the traversing spindle L".
.
Instead of the double-armed lever M' drawing down the pad C under and to release
the paper as described, the pad C, could be made stationary, and the lever M M²,
made to lift the printing frame in an equivalent manner off the pad C, to release the
paper z, by its two ends direct, or have the printing frame mounted on hinges along
one side, the lever M, through its springs m³ not acting to free the paper z until the
gas lever c' had shut the light off, all as described under the first arrangement.
Referring to the modification or arrangement of our improved photographic
printing machine or mechanism shown in Figures 4 to 6 on Sheet 2 of the Drawings,
the whole mechanism is carried portably or self contained on the sole plate H, to
which is screwed the side frames H, by broad flanged feet H", and which carry all
the journal bearings of the main working spindles, and the axial centres, and guides
of the oscillating and reciprocating parts, as also the portable stationary printing
frame B, secured by swivel snecks at 6 on top, with the glass or transparent
negativo N in the centre, close over the pressing pad C, and its raising and lowering

page_text: frame C', which presses the paper z, up against the negative N, to be printed by the
artificial gas light Y', which is here shown as fitted in a close case Y², reflecting all
the light down through the enclosed case ¹, of the water vessel h2, with a glass
bottom at h, over the opening of the printing frame B. All so as to cause the light to
pass down through the negative N and print the paper traversed under it, but held
there by the pad C, while being printed. In this way no light escapes outside into the
apartment to act on the paper while passing through the machine, which in this case
is preferably placed in a darkened room where all the printing is effected. The
sensitised web of paper z is mounted in a roll on its flanged bobbon and spindle A, in
bearings at one end of the machine and frames H. From this the paper z is led
forward over a measuring roller D, which is mounted on a spring centre d, and that
of a pronged disc d', and a short driving spindle D³, actunted by the train of spur
wheels E, E¹, E², us will hereinafter be described. The measuring roller D is thus
mounted portably on its spring and driving disc centres d, d', so as to be easily
removed, and have larger or different sized rollers D inserted to measure a greater or
less distance or traverse of the paper z over it, with the same arrangement of wheels E
to E, but the diameter of these change wheels might be varied to give a varying
traverse of the paper z with any permanent size of roller. Over this measuring
roller D, two adjustable gripping pressure rollers are mounted, with their spindle
bushes fitted in slotted guides in the upper part of the frames H³, and fitted with
regulating hand screws, and it might be with springs or rubber plates to adjust the
gripping pressure on the paper passing over the measuring roller D; the web of
paper, being led from the measuring roller D, up over the guide roller z¹, over the
surface of the pressing pad C down over a guide delivery roller ³, both of these guide
rollers being carried on the frame C carrying the pad C, so as to rise and fall with
it, and the paper. The paper z so led forward and printed as described and indicated
by the arrows in Figure 4, is delivered over the guide roller 23, and led and wound on
to the flanged bobbin Z, at the delivery end of the machine; this roller being
preferably carried in journal bearing levers Z mounted on a transvorso spindle Z,
with a pressure lever weight 2, all so as to regulate the tension on the paper, and
compensate for the varying diameter of the taking up roll Z which is driven by a
light band y, passed over a pulley y' on it, from a pulley y², on the first motion
shaft F of the machine. This shaft F, is carried in bush bearings in the main
frames H, at the delivery end of the machine, and is actuated from any adjacent
prime moving shaft, or it might be a counter varying speed shaft, preferably over-
head, by a belt or band passed over the fast and loose pulleys F¹, on its overhung
back end, and on which a first motion main driving spur wheel f, is keyed or otherwise
secured, which gives intermittent motion to a second spur wheel, keyed on the
central cam shaft M, of a long ratchet wheel Al, which raises and lowers the pad
frame C, C, all turned in the direction of the arrows shown in Figures 4 and 6, and
intermittently as will hereinafter be described. The first motion shaft F, gives motion
through a bevel pinion and wheel M³, at a slow rate to the shaft I", carried in the
centre of the machine in bush bearing brackets H³, secured to the sole plate H. This
shaft, has mounted on its other end a speed timing pin disc I, i, equivalent to
the barrel I, i, in the former modification, for giving the relative time each print will
be exposed to the light Y, for being printed, each revolution of the disc 1 before
moving and changing the paper z under the negative N This disc I, is fitted with
six rings of pins, one pin only being in the revolution of the first ring 1', two in
the second ring 12, three in the third ring I, and four six and oight in the outer
circumferential fourth, sixth and eighth rings respectively, and correspondingly
numbered I, I, I, as seen more particularly in Figure 5.
The speed of the disc 1, and its shaft I, may further be regulated by the speed
of the first motion shaft F. The hand sliding and oscillating rod L", is mounted
to slide and reciprocate in bearings, substantially as in the former arrangement on
sheet 1, and has mounted on it a double armed lever L, L', the rear arm L.being
actuated by any one of the rings of pins i, according as the hand spindle L" is
shifted out or in. The front arm L' of the lever carries a spring pawl lever L³,
·

page_text: 1
which takes into the long ratchet wheel M³, and each time a pin i comes round in the
disc I, causes the shaft M, and its wheels f¹ and E to turn in the direction of the
arrows for a short distance sufficient to bring round the wheel to the extent of a
short part of its section at findicated in Figure 4, where a segmental gap, of
teeth is absent, in their wheel f', and brings it into gear with the wheel f, which then
turns the shaft M, to the extent of one revolution until the gap ", comes round again.
This turning of the shaft M first shuts off the gas so as to nearly extinguish the light
by the small cams on its outer front end, as will hereinafter be described; and then
by the cams m, and regulating screw pins m³ in the frames C lowers the pad C, and
then by the wheel E, which has also a gap e in it comes round as soon as the paper z
is free and turns the train of wheels E¹, E, so as to turn the measuring roller D and
taking up bobbin Z to the required extent to print another picture on a new or fresh
part of the paper, and then press up the pad C, and paper 2, against the negative N
by the cams m, just before stopping the wheel 1. A weighted lever M³, or it might
be an equivalent spring on the spindle L", would always bring the pawl lever L, L, L³,
back to its normal position ready for the next shift of the ratchet wheel M¹ and
shaft M when a pin i came round. The gas and light in this modification is put off
and on by a small piston C, working within a cylinder c, with a spring c³, below it,
the gas being admitted to the cylinder c, by an uppor branch, and discharged through
a lower branch leading by tubes to the gas pipe of the light Y¹, as seen more
particularly in Figures 5 and 6, the gas being always shut nearly off by the power of
the spring, pressing up the piston c¹, so as to cut off the
gas from passing through
the lower tube c, and when not pressed down by the cam c, on the outer end of the
shaft M, which presses down the rod of the piston c¹, at the proper time as explained
to keep on the light by the action of the pins i turning the ratchet wheel M³, and the
cam c. The paper z might be traversed in the opposite direction to that indicated by
the arrows in Figure 4, by turning the measuring roller D, in the opposite direction,
and transposing the positions of the giving off roll A, and the taking up roll Z, and
driving this latter by a cord or band equivalent to y, passing over a pulloy y' on the
spindle of the roller 2, from a pulloy y², on the first motion shaft F, all equivalent to
the manner in which the roller Z, is shown driven in Figures 4 and 6, which band
would slip in either case before putting too much tension on the web of paper 2; and
the giving off roller A would preferably be mounted on its spindle with a pacing or
tension spring a, to prevent undue strain on the paper also. A little water is always
allowed to run into the water vessel 2, by the tube, and out through the tube, to
keep the water cool and at an uniform level within the vessel and close chamber h¹ h².
Although only artificial gas light has been described, it will be understood that other
artificial lights might be usod such as oxyhydrogen light or incandescent or arc
electric lights which latter could be switched off or on by an equivalent arrangement
of mechanism to that which shuts off the gas.
A further improvement consists in an arrangement of mechanism for automatically
printing the name or title of cach photograph on the upper side of one edge of the
web of paper, which is lowered with the pad and frame C, C, preferably at the
front side of the machine, over the shaft M, as shown in enlarged detached side and
end section in Figures 7 and 8, which consists in mounting between a recoss and
flanges B', in the centre of one side of the frame B, carrying the slide and negative N,
a light type "chase "
or form secured by pinching screws ¹, at the sides and ends
of the flanges B¹, and in which the type t, would be set in an inverted manner, so as
to be inked by a reciprocating set of rollers under them and case or drawer t²,
working in guides projecting out from the front side of the frame H2, and actuated
so as to ink the type while the pad C, and its frame with the paper z over it
were lowered, as shown in Figure 8, by their grooved cams V on the spindle as
before described, and withdrawn again outside the frame, before the pad and paper
were raised, so as to take the impression from the type t. This to-and-fro movement
of the inking frame and rollers t, is effected by the upper slotted arm u taking over
a pin u passed through snugs projecting down from the case t³, this lever u, being
mounted on a light horizontal spindle o, carried in the frame H³, having another

page_text: reverse lever projecting down on one side of a circumferential scroll cam V, keyed
on the shaft M, into the scroll of which a pin in the lever u³ works so as to actuate
the lever u, and inking roller frame & in proper times as explained with the cams m
which raise and lower the frame C. The outward movement of the inking rollers t,
causes them to raise and act on the under side of an inking spreading plate P,
hinged to oscillate in slots P¹, in the outer ends of the guides t³ of the case t',
so as to regularly and carefully ink the rollers t', which ink the type & in their
inward motion, the plate or pad P being turned up from time to time and spread
with printers ink by hand.
In place of the spreading inking pad P, an ink vessel and inking rollers
might be employed, for automatically inking a revolving plate or it might be an
inking band which would ink the rollers (each time their case t² was traversed
out from under the frame B.
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 ;
First. The construction, or arrangement and combination of the parts of apparatus,
mechanism, or machine for printing photographs and their titles automatically,
successively and intermittently on sensitised paper in rolls or long strips, and
regulating the period of exposure to the light to suit the density of the negatives,
all substantially as herein described, in reference to and shown in the accompanying
Drawings.
Second. The construction, or arrangement and combination of an oscillating
lever L, L, on lateral shifting spindle L" with a counteracting lever M³, actuated
by a pin barrel or a pin disc I, i, for raising and lowering the pressing pad and
frame C, C, under the sensitised paper z, or it might be the negative N, and
its frame B, over the paper z, through an arrangement of levers M, M²,
and compensating springs m, m² or equivalent ratchet barrel, by clock work or
other motive gearing, for printing photographs automatically, succossively, and
intermittently on sensitised paper, in rolls or long strips, and regulating the
period of exposure to the light to suit the density of the negatives, all substantially
as lierein described in reference to and shown in the accompanying Drawings.
Third. In automatic web printing photographic machines, the shutting down of
the light by a cock or piston valve c, through the same arrangement of pin barrel or
disc I, i, and levers L, L, L", which relieves the pressure of paper z on the
negative N, and controls the light, all substantially as herein described in reference
to and shown in the accompanying Drawings.
Fourth. In automatic web printing photographic machines, the regulating of the
length of paper z measured off, by a simple spring pawl lever 1, 1, 1, and
projections on the measuring drum D, through the same arrangement of pin
barrel or disc I, i, and levers L, L, L", which relieves the pressure of paper =
on the negative N, and controls the light, all substantially as herein described,
in reference to and shown in the accompanying Drawings.
Fifth. In automatic web printing photographic machines, the use of a measuring
drum D, with pressing rollers for measuring the web of paper z intermittently,
controlled by the same arrangement of pin barrel or disc I, i, and hand levers L, L', L,
which relieves the pressure of paper on the negative N, and controls the light, all
substantially as herein described, in reference to and shown in the accompanying
Drawings.