US861605A - Printing-machine. - Google Patents

Description

PATENTED JULY 30, 1907.

. J. OVENS.

PRINTING MACHINE.

APPLICATION 311,21) SEPT.13. 1901.

12 SHEETB-SHEET 1.

No. 861,605. PATENTED JULY 30, 1907.

' J. OVENS.

PRINTING MACHINE.

PI NI LED .1 1 1. A LIOATIO I SEPT 3. 90 IQSHEETB BHEET 2 WITNESSES: INVENTUR AN ATTORNEY PATENTED JULY 80, 1907.

J. OVENS.

PRINTING. MACHINE.

APPLICATION FILED SEPT. 13. 1901.

12 SHEETS-SHEET a.

INVENTOR h; ATTORNEY PATBNTED JULY 30, 1907.

J.OVENS. PRINTING MACHINE.

APPLIOATION FILED SEPT. 13, 1901.

12 SHEETS-SHEET 4.

5 \swa Q INVENT W fi/imq/ PATENTED JULY 30, 1907. J. OVENS.

.PRINTING MACHINE.

APPLICATION FILED SEPT.13, 1901.

12 SHEETS-SHEET 5.

J. ovsns. PRINTING MACHINE.

APPLICATION FILED SEPT. 13- 1901.

PATENTED JULY 30, I907.

12 sums-151mm a.

' PATENTED JULY so, 1907.

' J. OVENS. PRINTING MACHINE.

APPLIOATION FILED SEPT.13 1901.

-12 SHEETS-SHEET 7.-

1 INVENTORI Y :No. 861,605. PATENTED JULY SO, 1907. v

J. OVENS.

PRINTING MACHINE.

APPLICATION FILED SEPT.13, 1901. 12 SHEETB SHEET 8' y INVENTOR $9 M ATTORNEY 12 SHEETS-SHEET 9.

PATENTED JULY 30, 1907.

J OVENS PRINTING MACHINE. APPILIOATION FILED SEPT. 13. 1901.

INVENTOR am WW I M ATTORNEY W'TNESSES I v WJWMK NoI 861,605.

PATENTED JULY 30, 1907.

J. OVENS.

PRINTING MACHINE.

APPLICATION FILED SEPT. 13, 1901.

12 SHEETS-SHEET 10.

AQLATTDRNEY SEW PATENTED JULY 30, 1907.

JLOVBNSQ PRINTING MACHINE.

I f2 SHEETSy-BHEET 11.

APPLICATION FILED SEPT. 13 1901.

. N Ill '5 3 I IIIIIIIIIIIH J i i INVENTOR- hJATTONNEY, N

No. 861,605. PATENTED JULY 80, 1907.

J. OVENS.

PRINTING MACHINE.

APPLICATION FILED SEPT. 13. 1901.

' mam l BY I I jfik l? 12 SHEETS-SHEET 12.

- UNITED STATES PATENT OFFICE. 3

JAMES OVENS, OF NEW YORK, N. Y.,IASSIGNOR TO SARAH E. OVENS, OF BROOKLYN, P NEW'YORK. A

PRINTING-MACHINE.

i No. 861,605.

To all whom it may-concern:

Be it known that 1, JAMES OvENs, a citizen of the "with forms of various sizes; to provide means for clean.-

ing the I type after each impression; and to insure proper distribution of the ink upon the forms.

Further advantages and improvements are set forth in the specification and embodied in the claims.

Referring to the accompanying drawings in which like reference numerals refer to like parts of the machine, Figure 1 is a general diagrammatic view of the press showing the position of the form and impression cylinders. the distribution of the inking rollers, the

position of the type cleaning device and in general the arrangement of the three sections into which the ma chine is divided to facilitate changes in the size of the form and the feeding of the web. Fig. 2 is a general side view partly broken away to show the interior mechanism. Figs. 3 and 4 are detail views of the roll- I erally the means for revolving the cylinders and feeding the web. 7 Fig. 7 is plan view showing in part the position of the means for moving the two outer sections of the machine. Fig. 7 is a detail view of the plate on the knife actuating rod. Fig. 7 is a detail view of the disk on the knife actuating shaft. Fig. 8 is a cross section on the line 88 of Fig. 7. Fig. 9 is an enlarged detail view of the device for feeding the set-off sheet. Fig. 10 is a side view of sections A and C showing the mechanism for operating the knife. Fig. -11 is a cross section on line 1111 of Fig. 10 of the cutting device. Fig. 12 is a detail view of the gear wheel for adjusting the cylinder separating device when section B is moved in relation to section A. Fig. 13 is a partial side View of section B showing the gear for moving the sections. Fig. 14 is a horizontalsection of the same on the line v Specification of Letters Patent. Application filed September 13,1901. Serial No. 75,335.

- Yatented July so, 1907.

an enlarged side viewof the means for shifting the cleaning device into and out of operative position. Fig. 18 is a detail view of the cleaning device. Fig. 19 is a side view showing the location of the steel ropes and connections operating the feeding of the web and set-off sheet. Fig. 20 is a partial plan view showing the connections between the three steel ropes and the pendulum pawl. Fig. 21 is a sectional view on the line 21-21 of Fig. 22 of the spring drum on the shaft of the main feedroller. Fig. 22 is a side view of the same. Fig. 23 is an enlarged side. view of the pendulum pawl and connections. Fig. 24 is partial sectional view of the same on the line 24-24 of Fig. '23. Fig. 25 is an enlarged side view of section A showing the adjustable means for automatically regulating the feeding of the web." Fig. 26 is an end view of the same. Fig. 27 is a detail view of the gear for actuating the tension rollers.

Referring to the drawings in detail, A represents the middle section of the machine which is fixed to the floor or foundation and carries the second or perfecting set of cylinders.

Brepresents a movable section carrying the. first set of cylinders andthe roll of paper from which the web is fed. C represents the third section also movable and carrying the knife for cutting the perfected printed web into sheets. v

1 is the roll of paper from which the web 2 is led between the first forrn cylinder 3 and first impression cylinder 4 (both carried on section B) and thence to be perfected or printed on the lower face between the second form cylinder 5 and second impression cylinder 6 (both carried on section A). The web is taken from the perfecting cylinders 5 and 6 to the knife 7 (carried on section C) where it is cut into sheets. Sections A and B are each provided with two ink fountains 8, having fountain rollers 9, ductor rollers 10, ink cylinders 11,

distributing rollers 12, vibrating rollers 13 and form rollers 14 all as customary in printing presses except that the double set of inking devices arranged as described hereinafter constitutes a feature of the invention as specified in the claims thereto pertaining. Resting on the paper roll 1 is the feed roller 15 carried in the frame 16. .Above the perfecting cylinders carriedby section A is the supply roll 17 of.the set-off sheet 18 which is wound upon the roll 19 by the rotation of the feed roller 20 resting thereon and carried in the frame 21. The several parts constituting the pivoted at 52. To the upper end of the bell crank le-' venient power. The crank pin 25 on the gear wheel 22 drives the pitman 26 which is secured to the rocker 27 at the bearings 28 The rocker 27 is secured to the shaft 29 which is journalcd infthe frames A at 30 and 31. The rocker 27 reciprocates with the shaft 29 (Fig. 7.) as a center; in the upper end thereof is the slot 32 which engages the pin 33 fixed to the rack 34 so as to reciprocate the same. The portion of the rack 34 which lies along section B is provided with gear teeth 35 on its upper edge which mesh with the gear wheel 36 fixed upon the shaft of form cylinder The guide rollers 37 support the rack 34. The shaft of form cylinder 3 also carries the gear wheel 38 fixed thereon whose teeth mesh with the teeth of the gear wheel 39 fixed to the shaft of impression cylinder 4, the teeth of both gear wheels 38 and 39 being sufficiently deep to keep in mesh when impression cylinder/l is slightly lowered as hereinafter set forth. The other portion of rack 34 lying along section A is provided with gear teeth 40 on its under edge which mesh with-the gear wheel 41 fixed upon the shaft of form cylinder 5. The guide rollers 42 hold the rack 34 against the gear wheel 41. The shaft of form cylinder 5 also carries the gear wheel-43.fixed thereon whose teeth mesh with the teeth of gear wheel 44 fixed to the shaft of impression cylinder 6 the teeth of both gear wheels being sufficiently deep to'keep in mesh when impression cylinder 6 is slightly raised as hereinafter set forth. 4

To the frame 13 is adjustably secured the buffer'or cushion 45 to meet the rack 34 and cushion the end of its return movement; to the frame 0 is adjustably secured the buffer or cushion 46 to cushion the end of its forward movement.

48 lower the journal boxes 47 against the resiliency of the said springs. The frames 48 terminate in the pins 50 which extend through short horizontal slots (not shown) in the end of the bell crank levers 51 which are vers 51 are secured by the pins 53 the rods 54 with the faces 55 and the threaded boxes 56 hereinafter deby the pins 57 the bell crank levers 58 pivoted at 59. The pins 53 and 57, extend through short vertical slots (not shown) in the bell crank levers 51 'and 58.

Impression cylinder 6 is journaled at either end in the boxes 60 (best shown in Fig. 5) which are carried 1n the frames 61 extending around and. below the jour nal boxes 62-of form cylinder 5. Thesprings 63 between the journal boxes 60 and the frame A hold the impression cylinder 6 against the form cylinder 5 except when the frames 6]. raise the journal boxes 60 against the resiliency of said springs. The frames 61 terminate in the pins 64 which extend through short horizontal slots (not shown) in the bell crank levers 58 which have theextending noses 66 engaged by the trip device hereinafter described. The shaft 67 of gear wheel 22 extends through frame B which has slots allowing the movement of the section. Fixed on the shaft 67 are the two cam wheels 68 with the sharp inclines 69 180 degrees apart and the surfaces scribed. At the other end of the rods 54 are secured 70 and 71 (best shown in Fig. 5). The rollers 72 on i the uprights 73 pivoted at 74 are forced against the cam wheels 68 by the springs 75 which are more powerful than the combined springs 49 and (33. The links 76 connect the uprights 73 to the arms 77 on the sleeves 78 which are loosely carried on shaft 29.- Fixed to the outer ends of the sleeves 78 are the noses 79 which are adapted to be pressed by springs 75 against the faces 55 of the rods 54 when the rollers 72 ride over the surfaces 70 of cam wheels 68 but to be freed from said faces 55 when the rollers 7 2 ride over surfaces 71 of cam wheels 68. The noses 79 therefore through the medium of rods 54, bell crank levers -51 and 58. and frames 48 and 61 force the impression cylinders 4 and 6 away from form cylinders '3 and 5 during the backward movement of rack 34 but release the same during the forward movement of the rack 34.

Under the noses 66 of bell crank levers 58 arethe arms of levers 80 which are fast on the shaft 81 extending through frame A and journaled therein. To the opposite arms of levers 80 are secured by pins the trip handles 82, the downward movement of either of said trip handles through the medium of levers 80 and shaft 81 elevating noses 66 and separating, by means of the intervening connections hereinbefore described,

3 and 5.

The cleaning rollers 83 and 84 r 5, 17 and 18) have bearings in uprights 85 extending from the sides of the pans 86 and 87 which carry the rollers 88 and 89 in contact with the rollers 83 and 84. In the pans 86 and 87 are the scrapers 90 (Fig. 18) contacting with rollers '88 and 89. The pan 86 is carried on levers 91 pivoted to the frame B at 92, the lower ends of said levers being pressed outward by the springs 93. From the -upper part of the levers 91 extendthe inclined projections 94 contacting with the rollers 95 on the projections 96 from the frames 48 so that the downward movement of the frames 48 forces the pan 86 and rollers 83 and 88 away from form cylinder 3 against the pressure of springs 93. The upward movement of the frames 48'allows springs 93 to move the pan 86 toward form cylinder 3 until roller 83 contacts with the same. The pan 87 calrying cleaning roller 84 on the upright 85 and roller 89 is carried on levers 97 pivoted to the frame A at 98, the lower ends ,of said levers being pressed outward by the springs 99. 7 From the upper part of the levers 97 extend the projections 100 carrying the rollers 101 which contact (best shown in Figs.

The downward movement of the frames 61 allows the springs 99 .to 7

.the floor'or foundation beneath each section respectively. The shaft 104 is rotated by means of the bevel gear 108 (Fig. 13) on the end thereof meshing with the bevel gear 109 fixed on the shaft 110 provided with the hand wheel 111 and jom'naled in the" right hand screw worm 117 engaging the threaded box 118 secured to the cross-bar 119 which extends to either side of frame B and is fast thereto. Fast on shaft 104 beneath section C is the left hand screw-worm 120 engaging the threaded box 121 secured to the cross bar 122 which extends to either side of frame C and is fast thereto.

Fixedly secured on shaft 104 between section A and B is the large gear wheel 123 (best shown in Figs. 7 and 8) which meshes with smaller gear wheels 124 on the threaded boxes 56 (best shown in Fig. 12) into which enter the right and left hand screwsof the two pieces of rods 54, the arrangement of the threads being such that when the shaft 104 revolves to move section B the gear wheels 123 and 124 will revolve -the threaded which travel on the rollers 128 with bearings in the guides 125. The spring 129 secured to the knife at 130 and to the guide 125 forces the knife away from the straight edge 126 and into position shown in Fig.11 except when the knife is actuated to cut as hereinafter described.

Secured to the reciprocating shaft 29 is the disk 131 having the projecting lug 132 (best shown in Figs.7, 7 and 10). Inside said disk 131 the swiveled angle plate 133 is loosely carried on the shaft 29 and serves as a bearing and supportfor the rod 134 having at its lower end the plate 135 (Fig. 7*)with the projecting edge 136. The upper bearing for'the rod 134 isadjustably secured to the frame 0 at 137by the bolt 138 extending through a slot (best shown in Fig. 10). The upper end of rod '134 is square in section and through the casting 139 (Figs. 10 and 11) which also receives the rod 140 connected to the knife 7 by the pin 141. The casting 139 is provided with tightening screws for making it a rigid connection between'the rods 134 and l40.

Inthe reciprocating rack 34is the slot 142 (best shown in Figs. 19, 23, 24,25 and 26) in which slides the block 143. The lower edge of the slot 142 is provided with ratchet teeth 144. Pivoted to the sliding block 143 by thepin 145 is the pendulum pawl 146 whose nose 147 engages with the ratchet teeth 144.

Within the pawl 146' the hook 148 is hung by the pin 149 so that the face 150 of the hook 148 extends without thelower extremity 151 of the pawl 146. The pawl 146 is provided with an adjustable weight 152. The'pin 153 is fast on the slotted plate 154 which is adjustably "bolted to the frame A. Leading from the top of dog extends 20, 23, 25 and 26). To the drum 160 is attached the weight 161 by the steel rope 162. To the drum 160 is fixed the gear wheel 163 on same shaft 164 whose teetli mesh with the teeth of a gear wheel 165 (Fig. 27) loose on the shaft 166 of the lower tension roller 167 which is provided with a ratchet wheel 168 engaged by the spring pressed pawl 169 when gear wheel 163 is revolved in the direction shown by the arrow in Fig. 27. When pawl 169 rides over its teeth and tension roller 167 is not rotated. Above tension roller 167, resting thereon and geared thereto is tension roller 170.

rod 173 which is an extension from the reciprocating rack 174. Therod 173 is provided with the guide 175 and the collar 176 between which is located the expanding spring 177.- The rack 174 (best shown in Fig. 9) travels in the frame 178 and is provided with gear teeth 179 meshing with teeth on the gear wheel 180 loose on the shaft of feed roller 20 and having a spring pressed pawl 181 to engage the ratchet wheel 182 on the downward stroke of the rack 174 but to ride over the teeth of said ratchet wheel 182. on the upward the shaft of feed roller 20 whose journal boxes 183 travel in the slots 184 of the frames 21 so that feed roller 20 may rise to the increasing radius of the' roll 19 as the setoff sheet 18 is wound from the supply roll 17.

186, 187, 188, 189, 190,191, 192 and 193 to the spring drum 194 (Figs. 21 and 22) around which it winds. Spring drum 194 is carried on the shaft 195 of feed roller-15 the ends of said shaft being fixed in bloeks which travel in the slots 196 of frames 16 so that feed roller 15 may fall to the decreasing radius of supply roll 1. The spring -197 is secured to shaft 195 and to the drum 194 and winds the rope 157 around drum 19:1 when the other end of said rope 157 is released. Secured to drum 194 is ratchet wheel 198. On feed roller 15 is the spring pawl 199 which engages the teeth of ratchet wheel 198 to revolve feed roller 15 around shaft 195 when the drum 194 is rotatedby the pull of steel rope 157. When the drum.194 rotates in the reverse direction under the influence of spring 197 the pawl ,199 rides over the teeth of ratchet wheel 198 and feed roller 15 is not rotated; Guide wheels 200 guide the web on each side of the printing point between form cylinder 3 and impression cylinder 4; the web is led between a third pair of guide wheels before reaching the perfecting set of cylinders. I The operation of the machine is as follows. The forms (not shown) having been secured to the form cylinders 3 and 5 and the position of the movable sections having been adjusted as hereinafter explained in ac cordance with the size of the .form and perfected printed sheet desired, the web 2 from supply roll 1 is led through guide wheels 200 and between form cylinder 3 and impression cylinder .4 thence between other sets of-guide wheels 200 and between form cylinder 5 and im'pression cylinder fi; thence between tension rollers 167 and 170; thence along any convenient feeding device (diagrammatically illustrated in Figs. 1, 2 and 5 but forming no part of this invention) between the knife 7 and straight edge 126. The set-off sheet is the wheel 163 is revolved in the reverse direction the i The rope 156 is led by the pulleys 171 and 172 to the i I stroke of said rack 174. Ratchet wheel 182 is fast on Steel rope 157 (Figs. 19 and 20) is led by the pulleys then led from-supply roll 17 between form cylinder 5 and impression cylinder 6 and above web 2 to waste roll 19 on which it is secured. 'On starting the machine by the rotation of power shaft 24 and gear wheel 22, pitman 26 actua'tes rocker 27 which reciprocatedrack 34 by engaging with pin 33 fixed thereto. During the forward movement of rack 34 the cam wheels 68 on the shaft 67 of gear wheel 22 present their surfaces 71 to the rollers 72 forcing noses 79 against the pressure of springs 75 away from faces 55 of rods 54 thus allowing springs 49 and 63 to keep impression cylinders 4 and 6 against form cylinders 3 and 5. The forward movement of therack rotates both sets of cylinders 3 and 4 and 5 and 6 .by means of which the web is printed and perfected on the upper and lower sides respectively, the forms having been previously inked by rotation past the form rollers as hereinafter explained. The frames 48 and 61 carrying impression cylinders 4 and 6 being in the I position shown in Fig. 17 cleaning rollers 83 and 84 will contact with the type on form cylinders 3 and 5 immediately after it has passed the printing point and remove therefrom such ink as has not been deposited on the web 2. After passingthe cleaning rollers 83 and 84 the type is brought beneath theform rollers 14 to receive a supply of ink. At the end of the forward stroke of the rack 34 the rollers 72 ride down inclines 69 to the surfaces of cam wheels 68 under pressure of springs 75. The noses 79 are thus forced against faees 55 of rods 54 'and through the medium of hell crank levers 51 and 65 and frames 48 and 61separ'ate impression c ylinders 4 and 6 from contact with form cylinders 3 and 5 during the backward stroke of rack 34 while rollers 72 ride on surfaces 70. By the. movement of frames 48 and 61 the cleaning rollers 83 and 84 are likewise re-,

moved and kept away from form cylinders 3 and 5. The backward stroke of the rack 34 actuated by rocker 27 carries the type on form cylinders 3 and 5 beneath form rollers 14 for the reception of another supply of ink therefrom. The return revolution of form cylinders 3 and 5 is continued until they have reached their initial position and all the type has twice passed the double set of form rollers 14, once during the forward revolution and once during the backward revolution. The knife 7 is operated at the end of each forward stroke of the rocker 27 by the lug 132 on the disk 131 striking the projection 136 on the plate 135 fixed to the rod'134, the disk 131 being fast on the rocker shaft29. As the rod 134 turns the rod 140 secured thereto by the casting 139 drives the knife 7 forward and down the inclines 127 to give a quick scissor-like cut across the web 2, As the lug 132 is released from the projection 136 at the inception of the return stroke of therocker 27 the spring 129 withdraws and raises knife 7 on the inclines 127. The web 2 is fed by the tension rollers 167 and 170. which draw it and by feed roller115 which feeds it from supply roll 1. During the forward movement of the rack 34 tension roller 167 to which tension roller 170 is geared is revolved in the direction indicated by the arrow in Fig. 27 by the pawl 169 fast-on gear wheel 165 engaging ratchet wheel 168 fast on the shaftof tension roller 167. Gear wheel 165 is revolved by gear wheel 163 fast to the end of drum 160. Drum 160 is nose 147 of pendulum pawl 146 engages the teeth 144 on said rack 34 and steel rope 155 is drawn along therewith until hook 148 contacting with pin 153 engages the same and the nose 147 of pendulum pawl 146 is freed from teeth 144 by the impact of the lower end 151 of said pawl 146 with said pin 153. During the further forward movement of rack 34 said rack slides by block 143. As soon however as the rack 34 starts its backward movement the tension on the steel ropes 155, 156 and157 and the change indirection of the friction tension on block 143 in the slot 142 shifts the pendulum pawl. 146 so that its nose 147 reengages with teeth 144 and hook 148 hung therein is released from pin 153. The block 143 and pendulum pawl 146 return with rack 34 but as they start together said block and pawl 146 thereon will reach their initial position before rack 34 reaches the endof its return stroke. The nose 147 of pendulum pawl 146 will ride over teeth 144 while the rack 34 completes its return movement. The weight 161 attached by steel rope 162 to drum 160 revolves the same to wind steel rope 155 thereon during the return movement; but rotation of drum 160 and gear wheel 163 in the reverse direction from that shown by the arrow in 'Fig. 27 does not'actuate tension rollers 167 and 170 for the pawl 169 then rides over the teeth of ratchet wheel 168. Feed roller 15 for supply roll 1 is actuated simultaneously with tension rollers 167 and 170. The steel rope 157 is attached to spreading buckle 158 and there- I fore is drawn'and released simultaneously with steel rope 155. Steel rope 157 is led by the pulleys shown in Figs. 19 and 20 to spring drum 194 around which it winds. Spring drum 194 and ratchet Wheel 198 thereon are revolved by the pull of steel rope 157 tightening spring 197 and revolving feed roller 15 by means of spring pawl 199 attached thereto, the feed roller 15 being carried loose on the same shaft 195 with spring drum 194. When the tension on steel rope 157 is re- I leasedit is rewound on spring drum 194 by spring 197;

but feed roller 15 is not rotated by the movement of spring drum 194 in the reverse direction as the spring pawl 199 rides over theteeth of ratchet wheell98. The amount of rotation of feed roller 15 corresponds to the distance traveled by block 143 and pendulum pawl 146 and is measured by the position of adjustable pin 153 as hereinafter explained. As the radius of supply roll '1 decreases, feed roller 15 and spring drum 194'drop therewith on their shaft 195 which is fixed in the blocks sliding in the vertical slots 196 in frame 16.

The delivery of the web 2 from supply roll 1 is accomplished by thefriotion of feed roller 15 resting; thereon, the amount of delivery corresponding to the amount of rotation of feed roller 15 though supply roll 1 will revolve on its shaftmore or less slowly according to the length of its radius. The feeding of set-off sheet 18 is accomplished and regulatedby similar means. Steel rope 156 is fast to spreading buckle 158 and therefore has the same forward movement; it is led by pulleys shown in Fig. 20 to rod 173 extending down from rack 174 which reciprocates in frame 178. The forward movement of steel rope 156 pulls the rack 174 down against the tension of spring 177 The down stroke of rack,17 4 revolves gear wheel 180 and feed roller 20 through the medium of ratchet wheel 182 and spring pawl ,181. The revolution of feed roller 20 which rests in frictional contact on the waste roll 19 of set-off sheet pendulum pawl 146. When the tension on steel rope 156 is released spring*177 raises rack 174*drawing steel rope 156 therewith but the reverse rotation of gear wheel 180 does not actuate feed'roller 20 as the spring pawl 181 rides over the teeth of ratchet wheel 182. Guide wheels 200 are located as shown in Figs. and

16 so that when the impression cylinders 4 and separated from form cylinders3 and 5 the web 2 will be 15 hcldout of contact with either of said cylinders. To

adjust the machine to the size;of theform and per.- iected printed sheet desired the tightening screws on casting 139 are loosened and also the bolt 138 securing bearing 137 to frame- Hand wheel 111 is then ro- 20 tated in the desired direction to turn shaft 104 through the medium of bevel gear wheels 108 and 109. -.The worms 117 and 120 'will move sections B and C in opposite directions either towards or away from section A.v

As section B moves in relation to section A rods 54 are correspondingly'adjusted through the medium of gear wheels 123 and 124 and threaded'boxes 56. As section C moves in relation to section A casting 139 slides on rods 134 and 140. When the sections reach the desired position corresponding to the size of the forms to be used the tension screws on casting 139 are tightened and also the belt 138. The plate 154 carrying pin 153 is then adjusted on frame A in a position to regulate the feeding of the web to accord with the size of the form. The pin 153 may be fixedly secured to section C so that the adjustment of the sections controls the position of the pin 153 and the amount of delivery of the web. v v t I p ,In this application 1 make no claim to the device whereby the feeding of the web and set-off sheet is 40- automatically regulated to accord with the size of the 'of cylinders adapted to perfect the same, and a third sec-,

tion, also movable, carrying means for cutting the printed web, said movable sections being adjustable in relation to the stationary section by means of a shaft provided with right and left hand screw worms simultaneously engaging threaded boxes on the frames of such movabie sec tions respectively. p I

2. In a printing machine, two form cylinders, a reciprocating rack driving the same and having a horizontal movement, two impression cylinders, one above one form cylinder, the other below the other form cylinder, and

means for separatingthe impression cylinders from the form cylinders so that when one impression cylinder drops the other will rise.

3. A perfecting printing machine, consisting of :1 stationary central section carrying a perfecting set of cylinders an end section carrying a set of cylinders adapted to print the first side of a paper web, a section .at the other end carrying a cutting device, and means for moving the two end sections simultaneously in relation to the central section.

,4. In a perfecting printing machine, a movable section carrying an impression cylinder and a form cylinder adapted to print the first sideof a paper web, a stationary section carrying-an impression cylinder and a form cylinder adapted to perfect the same, meansfo'r simultaneously separating'the impression cylinders from the form cylinders, means for shifting the movable section in relation to the stationarf section, and means for adjusting said device for separating-the impression cylinders from the form c'ylinders to accord with all positions of the movable section,

5. In a perfecting printing machine'having two sets of impression and form cylinders adjustable in relation to each other, means for adjusting a device for separating the impression cylinders from the form cylinders in accordance with the distance between the two sets of cylinders, such device consisting of frames supporting the impression cylinders and moving them into and outnof contact with the form cylinders and controlled by lev'ers actuated by cam wheels on the main shaft.

6. In a perfecting printing press, a shaft operating means for shifting a set of cylinders consisting of an impression cylinder and a form cylinder adapted to print one side of a paper web in relation to a second set of cylinders consisting of an impression cylinder and a form cylinder adapted toperfect said paper web,'and simultaneously adjusting a device for separating said impression cylinders from said form cylinders, such device consisting of frames supporting the impression cylinders and moved 'into and out of contact with the form cylinders by levers actuated by cam wheels on-the main shaft.

7. In a perfecting printing press consisting of a stationtaneonsly adjusting the rod 54 operating the mechanism for separating the forni cylinders 3 and 5 from the irriary section carrying a set of cylinders consisting of a 'forin cylinder and an impression cylinder adapted to print one side of a paper web, and a movable section carrying a second set of cylinders consisting of :1 form cylinderand animpression cylinder adapted to perfect said paper web,

a devicefor automatically and simultaneously separating sa-id impression cylinders from said form cylindersto accord with the distance between the sections.

In testimony whereof, I have signed my name to this specification in the presence of two subscribing witnesses,

this 12th day of September 1901.

, JAMES ovens.

Witnesses 7 Homer: A. DAVIS,

Josnrn Al s'rn'rson.

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