US1987900A - Printing machine - Google Patents

Description

Jan. 15, 1935. w. 'r. GOLLWITZER PRINTING MACHINE Filed May 12. 1950 15 Sheets-Sheet 1 Jan. 15, 1935 w. T. GOLLWITZER PRINTING MACHINE Filed May 12, 1930 13 Sheets-Sheet 3 Jan. 15, 1935.

w. T. GOLLWETZER PRINTING MACHINE Filed May 12, 1950 1.5 Sheets-Sheet 4 Jan. 1 5, 1935. w, T. GOLLWITZER PRINTING MACHINE Filed May 12, 1930- 13 Sheets-Sheet 5 Jan. 15, 1935.

W. T. GOLLWITZER PRINTING MACHINE Filed May 12; 1950 13 Sheets-Sheet 6 Jan. 15, 1935. w. T. GOLLWITZER 1,987,900

PRINTING MACHINE Filed May 12, 1950 '15 Sheets-Sheet 7 l\ Ill lll PRINTING MACHINE Filed May 12, 1930 13 Sheets-Sheet 8 Jan. 15, 1935. w. T. GOLLWITZER Jan. 15, 1935. w. T. GOLLWITZER PRINTING MACHINE Filed May 12, 1930 13 Sheets-Sheet 9 Jan. 15, 1935. w. T, GOLLWITZER PRINTING MACHINE Filed May 12, 1930 13 Sheets-$heet 10 q m. D m k m Q T0311 9i L Jan. 15, 1935.

W. T. GOLLWITZER PRINTING MACHINE Filed May 12, 1930 13 Sheets-Sheet 11 Jan. 15, 1935. w. T. GOLLWITZER 1,987,900

PRINTING MACHINE Filed May 12, 1930 13 Sheets-Sheet 12 3% 5b 8% ON mam Jan. 15, 1935. w. T. GOLLWITZER PRINTING MACHINE Filed May 12, 1930 13 Sheets-Sheet l3 Patented Jan. 15, 1935 UNITED STATES PATENT OFFICE REISSUED Addressograph Company, Chicago, 111., a corporation of Delaware Application May 12, 1930, Serial No. 451,812

59 Claims.

This invention relates to. printing machines of the type in which individual printing devices are successively passed through printing position, and the salient object is to distribute impressions from different parts of each printing device in transposed relation on a sheet and to distribute the impression from successive printing devices in columnar relation on the sheet.

Another object is to provide a printing machine in which the sheet is movable in correlation with the impression operation.

Still another object is to arrest the printing device movement during the time impressions are made from different parts thereof.

A further object is to indicate the positioning of certain printing devices in printing position; and an ancillary object is to indicate certain operating conditions in the machine as when the last line on the sheet moves from printing position.

A still further object is to provide a printing machine in which the distribution of the impressions from diiierent parts of a printing deviceon a sheet may either be manually or auto- 2 matically performed.

Further objects of the invention are to simultaneously impart longitudinal and transverse movement to the sheet to effect movement of the sheet in a diagonal line; to control longitudinal movement of the sheet by a member movable into varied positions whereby the longitudinal movement may be varied; to employ a platen embodying sections respectively alined with separate groups of printing characters on the printing devices whereby the platens may be selectively released to print a separate group of printing characters; to impart a step-by-step movement to the sheet to space the lines of printing characters imprinted thereon and to effect this spacing upon predetermined shifting of the sheet transversely of the machine; to interrupt operation of the machine when the supply of printing devices in the printing device magazine is exhausted; to afford variation in the transverse movement imparted to the sheet; to yieldably interconnect the operating and operated parts of the machine to thereby prevent injury to the operated parts under abnormal conditions and avoid injury thereto; to effectively clamp the sheet in the lister to prevent relative movement between the lister and the sheet; to disconnect the printing device feeding mechanism during predetermined operations of the machine; to selectively determine whether or not impressions are to be made from the printing devices passing through the machines and to maintain the timed relation between the various operating parts when impressions are not made from selected printing devices; to determine transverse shifting of the sheet from the printing devices; and to time the operation of control devices in the machine so that operation thereof will be effected at the end of a cycle of operation of the operating mechanisms.

In the accompanying drawings a selected embodiment of the invention is disclosed and, therein:

Fig. l is a side elevational view of a printing machine constructed in accordance with my invention;

Fig. 1A is a detail section taken on the line 1A-1A of Fig. 1;

Fig. 2 is a plan view of the machine illustrated in Fig. 1;

Fig. 3 is a fragmentary plan view of the sheet supporting and cooperating mechanisms;

Fig. 4 is a sectional view taken substantially on the line 44 of Fig. 3;

Fig. 5 is a sectional view drawn to an enlarged scale showing a portion of the paper clamping means illustrated in Figs. 3 and 4;

Fig. 6 is a View partially in elevation and partially in section looking in at the right hand side of Fig. 3;

Fig. 7 is a sectional view taken substantially on the line 77 of Fig. 6;

Fig. 8 is a sectional view taken substantially on the line 8-8 of Fig. 6;

Fig. 9 is a detail view of -a portion of the device illustrated in Fig. 6;

Fig. 10 is a sectional view taken substantially on the line 10-10 of Fig. 3;

Fig. 11 is a view depicting the printing device advancing mechanisms and parts cooperating therewith Fig. 12 is a sectional view taken substantially on the line 12-12 of Fig. 2;

Fig. 13 is a sectional view taken substantially on the line 1313 of Fig. 12; (r

Fig. 1 1 is a view showing the platen operating devices and parts cooperating therewith;

Fig. 15 is a sectional view taken substantially on the line 15-l5 of Fig. l l;

16 is an elevational view on the line L 16-l6 of Fig. 1;

Fig.1? is a detail view of a portion of the apparatus shown in Fig. 16;

Fig. 18 is a sectional view taken substantially on the line l818 of Fig. 16;

Fig. 19 is a perspective view illustrating the paper shift regulating devices;

Fig. 20 is a perspective View of a detector arrangement and the mechanism operated therey;

Fig. 21 is a fragmental plan view illustrating the printing devices and the guiding arrangement therefor;

Fig. 22 is a sectional view taken substantially on the line 2222 of Fig. 21;

Fig. 23 is a horizontal detail view taken transversely of the printing device magazine;

Fig. 24 is a sectional View taken substantially on the line 24-24 of Fig. 23;

Figs. 25 and 26 are fragmental views illustrating different types of sheets printed in the machine;

Fig. 27 is a diagrammatic view illustrating the electrical connections employed in the device; and

Fig. 28 is a transverse sectional view.

Referring to the drawings, 1 indicates the main frame on which the various instrumentalities of my improved machine are mounted. The frame is mounted on casters 2 and supports the bed plate 3. A bracket 4 on the main frame supports an electric motor 5, the driving pulley 6 of which is connected by a belt 7 to a pulley 8 fixed on the shaft 9 journaled in the frame 1. Another shaft 10 is journa-led in the frame 1 and has a flywheel pulley 11 thereon connected by a belt 12 to the pulley 13 fixed on the shaft 9. A clutch structure of the type commonly employed in machines of this kind and generally indi cated by 14 connects the flywheel pulley 11 to the shaft 10. A lever 15 is pivoted on the fram 1 and the operating rod 16 of the clutch structure 14 is attached thereto. A solenoid 1'7 of approved form mounted on the frame 1 operates the link 18 connected to the lever 15. When the push button switch 19 (Fig. 27) is closed the machine is set in operation since this closes the circuit to the solenoid 1'7 from the line wires 20 and 21, the main switch 22 having been previously closed. The switches 19 and 22 are conveniently located in the machine. The switch 19 need only be momentarily closed since means, to be described hereinafter, including the link 23 attached to the lever 15 holds said lever in operating position during normal operation of the machine. A link 24 operated by a crank 25 on the shaft 10 is pivotally connected to the main operating member 26 at 2'7 and imparts rocking movement to said member 26. The member 26 is pivotally mounted, as indicated at 28, on a lug depending from the bed plate 3. The various instrumentalities of the machine are operated from the main operating member 26 and these instrumentalities function to perform the printing operations at predetermined places on the sheet 29 which is arranged on the bed plate 3 in the following manner:

As best shown in Figs. 2 to 6 inclusive, a guide bar 30 has one end thereof fixed in a supporting bracket 32 and the other end thereof is supported by an auxiliary bracket 31. Mounted for movement along the guide bar 30 is the lister slide 33. An adjustable arm 34 is mounted for movement in the lister slide 33 and is retained in adjusted position by the thumb screw 35, Fig. 10. At the outer end of the arm 34 is a supporting arm structure 36 on which a substantially channel-shaped clamp plate 3'7 is mounted. One edge 38 of the channel-shaped plate 37 rests in a groove 39, Fig. 4, in the bar 40, secured to the outer end of the arm 34, of the arm structure 36. Secured to the under side of the bar 40 and projecting forwardly therefrom is a flat plate 41 having a groove 42 therein in which the edge 43 of the channel-shaped plate 3'7 is rested. Extending upwardly from the bar 40 through the plate 37 are bolts 44. Disposed around the bolts 44 between the heads thereof and the plate 3'7 are coil springs 45 which, in cooperation with the fiat springs 46 at the end of the arm structure 36, urge the plate 3'7 downwardly. A locating stud 47 is mounted at one end of the bar 40 and projects therefrom. The sheet 29 is abutted against the locating stud 47 and the adjacent edge 48 of the bar 40 when it is laid over the plate 41. A block 50 is pivotally mounted at 51 on the upright 52 extending from the bar 40. A grip member 49 includes a foot portion 53 secured to the clamp plate 37. During the insertion of the sheet 26 the edge 43 of the plate 37 is elevated by moving the grip member 49 to pivot the plate 37 about the edge 38. Since the sheet is inserted when the edge 43 on the plate 3'7 is elevated, it is apparent that when this edge is lowered a portion of the sheet will be forced into the groove 42, Fig. 5, by this edge 43 and will be very eiiectivciy clamped by the spring pressure exerted on the plate 37. As best illustrated in Fig. 6, the brackets 31 and 32 are respectively mounted on rollers 54 and 55 for movement trancversely of the bed plate 3.

In Fig. 25 one form of sheet to be printed in the machine is illustrated. This sheet is indicated by 29a and the printing operations imprint indicia th reon in vertically alined relation. In the prerent instance, a portion of the indicia is imprinted in the vertical column 57. Other indicia is imprinted in the vertical columns 58. The ind co in the columns 57 and 58 is transversely alined. and this transversely alined indicia is im; 'nted from characters on the same printing device or plate 59, Fig. 21. Two rows of printing characters 60 and 61 are provided on the printing devices 59. Above the rows 60 and 61 another row of printing characters 62 is provided. Indicia is imprinted on the sheet 29a in the columns 58 from either the row 60 or 61 while the indicia in the column 5'7 is imprinted from the characters in the row 62.

The printing operation is performed by socalled snapping platens which are retained in a cocked position against spring pressure. Releasing of the platens from cocked position enables the carrying out of the printing operation in a forcible manner. This platen construction will now be described. Extending upwardly from the bed plate 3 is a bracket 63, Figs. 2 and 14, and extending laterally across the machine from the upper end of the bracket 63 is a tubular supporting member 64, Fig. 28, having, at the outer end th reof, the platen arm 65. Mounted at the end of the arm 65, Fig. 2, is a platen housing 66.

The arm 65 is connected to the member 64 in the following manner. A sleeve 67, Fig. 12, unitary with member 64, has a flattened portion 69 and, bearing against this flattened portion, is a plate '70 secured to the end of the arm 65 by the bolts '71. A slight clearance between the plate '70 and the end of the platen arm 65 permits the plate to be disposed angular-1y to the end of the arm by varying the position of the bolts '71. The adjustment thus provided is employed to bring the lower end of the platen housing, and the platens mounted therein, into parallel relation with the bed plate 3 and the printing devices movable through guides in said bed plate.

At the ends of member 6a are retaining nuts 68. Extending through the sleeve 67 is a shaft 72 to one end of which an arm 73, 1, is secured. Pivotally connected to the outer end of the arm 73 is a link 74 pivotally connected at 75 to an arm 76 pivotally mounted on the support for the main operating member 26, Fig. 28. On the arm 76 is a pad 77 that rests on the abutment 78 on the frame 1. A pawl 77 engages a hardened portion 78 on the arm 76. The pawl is pivotally mounted on the operating member 26 and is urged upwardly by the spring 79' into engagement with the roller 80' on the arm 81 carried by the shaft 82' pivotally mounted in the abutment 78. The shaft 82" is moved, in a manner to be set forth, to dispose the roller 80 either in the notch 83 or on the rise 8 1'. When the roller 80 is in the notch 83' the pawl engages the portion 78. Upon movement of the main operating member 26, in a counter-clockwise direction as viewed in Fig. 1, by the link 24 the pawl 77 engaging the portion 78' moves the arm 76 in a similar irection. This moves the arm 73 upwardly and this movement is transmitted through the shaft 72 to the arm 79, Fig. 14, mounted on the shaft 72 at the end opposite the arm 73 and this arm 79 moves downwardly upon such movement of the arm 73. Downward movement of this arm 79 selectively operates the platens in the following manner:

Guides 66, Fig. 13, in the platen housing have vertical grooves therein in which the platen slides 80, 81 and 82 are slidably mounted. Spring anchors at the upper ends of the slides have springs 83, 84 and 85, Fig. 1.2, secured thereto, the other end of said springs being connected to the spring anchors 86 on one of the guides 66, Fig. 15. The springs urge the platen slides downwardly. The platen slides are retained in upper position by the pawls 87, 88 and 89, Fig. 12, seated in notches in said slides and mounted on shafts 90, 91, and 92, that extend outthrough a wall of the housing 66. Substantially L-shaped arms 93, 94, and 95, 14, are mounted on these shafts exteriorly of the housing 66. Rods 96, 97, and 98, have corresponding ends thereof pivotally connected to corresponding ends of the arrns 93, 9 1, and 95, respectively. The opposite ends of the rods are extended through openings in the flange 99 on the end of the arm 100 (Figs. 6 and 14) mounted on the shaft 101 journaled in the sleeve 102 (Fig. 12) carried by the lug 163 depending from the arm 65. In a manner to be set forth. presently the arm 100 is moved to selectively aline the ends of the rods 96, 97 and 98 with the stud 10 1 at the outer end of the 105 of the bell cranl: 106 (Fig. 14) pivotally mounted at 107 on the arm 65. Springs 198 extend between the h 66 and the ends of the arms 93, 9 1 and 95 and urge the ends of the rods 96, 97 and through the openings in the flange 99 and these springs also urge the pawls 87, 88 and 89 into retaining position.

A spring 109, connected to the 105 of the bell crank 1G6, urges the stud 1G away from the ends of the rods 95, 97 and 98 and this action is limited by engag -t or" the 110 of the bell crank 196 with the stop 111 on rm 65. Unitary with the arm 11 1 is a boss 11.2 having a set screw 113 mounted therein. The set screw 113 engages the lower end of the pawl 11% pivotally mounted at 115 at the outer end of the arm 110. A spring 115 is disposed between the pawl 11 1 and the boss 112 above the pivot 115 and urges the portion or" the pawl below the pivot into engagement with the set screw 113. The nose 117 of the pawl 11 i is disposed in the path of the pad 118 on the arm 79. As the arm 79 moves downwardly in the manner previously described the pad 118 engages the nose 117 and moves the pawl and bell crank as a unit to force the stud 104 into engagement with the rod alined therewith. If, for example, the rod 96 alined, the arm as is pivoted and movement of this arm rotates the shaft 90 attached thereto. This shaft 90 rotates and moves the pawl 87 from the notch in the platen slide 80. At the lower ends of the platen slides the platens 119 are mounted and when the pawl 87 is retracted, as set forth, the spring 83 moves the platen slide 80 downwardly and the platen 119 connected thereto brings about a printing action in amanner to be set forth. Similarly, if the rod 97 is pushed the platen 81 is released. If the rod 98 is pushed the platen slide 82 is released in the manner above set forth.

As shown best in Fig. 15, each of the platen slides has a recess 120 in the lower edge thereof across the open end of which the platens 119 extend. Through an opening 121, Fig. 12, in the flange portion of the arm 65 another arm 122 is extended which arm 122 includes an enlarged nose portion 123. The arm 122 extends through the recesses in the platen slides and the nose 123 is disposed in the recess in the intermediate platen slide 31. On the outwardly disposed platen slides 80 and 82 pads 125, Fig. 13, are secured which extend into the recess 120 in the platen slide 81 on each side of the pad 124 disposed in this recess and connected to platen slide 81. The sleeve 102 is fixed in lug 103. The arm 122 is pivotally mounted on this sleeve. An Fig. 14, is also pivotally mounted on the sleeve 102, and the arms 122 and 126 are connected. The end portion 127 of arm 126 is disposed in the path of the roller 128 on the 79. The pad 118 on the arm 79 has been described as engaging the nose 117 during its downward movement and after this engagement has continued for a period sufficient to cause actuation of one of the rods 96, 97, or 98, the pad 118 disengage the nose 117. As the arm 7e continues to move downwardly or clockwise, as viewed in 14, the roller 12S engages the end portion 127 of the arm 12S and turns this This arm in a counter-clockwise direction. movement is transmitted to the arm 122 and causes this to be i .oved upwardly into engagement with. the pad or 124 of the replaten, and the released platen is ele vated as arm 122 continues to move upwardly. As soon as the pad 118 disengages the nose 117 the spring 189 retracts the arm 105 and, therefore, the stud 10 1, which permits one of the springs 108 to reposition the shaft 90, 91, or and the parts carried thereby, that have been moved. Therefore, one of the pawls 87, 88, or 89, seats the previously released slide and retains this slide in its upper or cooked position thus tensioning the spring 83, 8 1 or 85 connected thereto. Qperation or" the machine is so timed that immediately after the arm 122 has restored previously released platen slide the main operating member 26 starts to move the opposite or clockwise direction, as viewed in 1. The 75 has a boss 74, 1A, thereon that is disposed behind a boss 75 on the main operating member 26. The clockwise movement of the main operation member engages the boss with the boss 74 and the arm 76 is moved. This rotates the shaft 72 in a counter-clockwise direction, as viewed in Fig. 14, which disengages the roller 128 from the end portion 127 and as the pad 118 engages the nose 117 the pawl 114 pivots about the mounting 115 against the action of spring 116 and thus the bell crank 106 is not moved. Disengagement of the roller 128 from the end portion 127 permits the arm 122 to fall. Downward movement of the arm 122 is limited by engagement thereof with the pad 129, Fig. 12, on the upper edge of the block 136 fixed to the housing 65. In this position the arm 122 is disposed with the nose 123 thereof below the pads 124 and 125 and engagement of a pad therewith, when a platen is released, limits downward movement thereof. In the foregoing manner each of the platen slides may be selectively and automatically released to bring about a printing operation and subsequently restored to inoperative position.

The printing devices or plates 59 are arranged in a vertical stack in a magazine 129 positioned at the rear of the bed plate 3, Fig. 2, and from this stack the bottom devices are successively withdrawn and carried forward along the guideway 130, Figs. 2 and 24, to the anvil 131, Fig. 22. The printing devices are taken from the stack and fed forwardly in the guideway by the reciprocating feed bars 132, Fig. 11, positioned below the guideway 130 and reciprocal toward and away from the anvil 131. Feed pawls 133 on the feed bars 132 engage the rear edges of the devices 59 that are in the guideway 130 and when the bar is reciprocated the rearwardmost par/ls engage the lowermost printing device in the magazine 129 and carry this device into the guideway. As reciprocation of the bars 132 is continued the pawls successively engage the rear edges of the device, during the forward portion of the reciprocating movement, the pawls freely passing under the printing devices during the rearward portion of the reciprocating movement, and thus the printing devices are advanced through the guideway in a step-by-step manner. The feed bars 132 are operated from the lever 134, Figs. 1 and 11, which has an extension arm 135 thereon that rocks the lever 136 through the link 137 connecting these members. The lever 136 is mounted on a shaft 138 journaled in a portion 139 depending from the bed plate 3. One arm of the bell crank 140, fast on the shaft 138, is connected by a link 141 to the feed bars 132. The other arm of the bell crank has a notched end 142 engaged by the spring urged trigger 143 mounted on the arm 144 of the lever 136, the sprirn 145 urging the trigger into the notch. An arm 146, Fig. 1, on the operating member 26, has a link 147 connected thereto and is also pivotally connected to the lever 134 at 148. When member 26 moves in a counter-clockwise direction, as viewed in Fig. 1, movement is imparted through arm 146, link 147', lever 134, arm 135, to lever 136, through trigger 143, bell crank 140, to link 141, to move the bars 132 rearwardly. As operating member 26 moves in a clockwise direction, as viewed in Fig. 1, the movement is transmitted as above to lever 136 and, the pin 149' engages the arm of the bell crank 140 to which the link 141 is connected and, in this manner, the bars 132 are moved forwardly.

In the machine as illustrated the printing devices are advanced only during alternate operations. To this end I provide the ratchet 147, Figs. 11, 14 and 19, and the push rod 148. The ratchet 147 is mounted on a shaft 149 journaled in the frame 1 and has a plurality of teeth on the periphery thereof. The teeth on the periphery of the ratchet 147 are so arranged that they effect the alternate feed of the printing devices and therefore the teeth are alternately deep and shallow, the deep teeth being indicated by 156 while the shallow teeth are indicated by 151. However, if a different advancing movement is to be imparted to the printing devices 59 a different arrangement of the deep and shallow teeth is provided, the particular arrangement depending upon the particular advance movement to be imparted to the printing devices. A step-by-step movement is imparted to the ratchet 147 in synchronism with the main operating member 26. The mechanism for doing this includes the U-shaped bracket 152 that is best illustrated in Fig. 19. The bracket 152 is supported from the shaft 149 by a casting 153. The right angular-1y extending end portion of the rod 148 is extended across the bracket 152 in juxtaposition to the bight portion thereof, and the end of the portion 154 is adapted to seat in the teeth and 151, Fig. 14. The bracket 152 has 0. lug 155 at the upper end of one arm thereof which lug lies in the path of the stud 156 on the pawl 157, Figs. 14 and 28, pivotally mounted on the rocker 158. On the pawl 157 is a stud 159 seated in a socket 160 in the arm 161 pivotally mounted on rocker 158. A spring 162 extends between the pawl 157 and arm 161 and urges arm 161 into engagement with the stop pin 161'. The lever 134 is a part of the rocker 158 and when the link 147' first actuates the lever 134, the rocker 158 is moved with the shaft 163, Figs. 12 and 28, on which it is mounted, in a clockwise direction, Fig. 14. This moves the roller 158' into engagement with the lug 152' on the casting carrying bracket 152, Fig. 19, and movement is imparted through the bracket 152 and the portion 154 to the ratchet 147, and the ratchet is moved in a counter-clockwise direction, as viewed in Fig. 11. Pivotally mounted on the frame is a retaining pawl 164, Figs. 14 and 19, normally engaged in the teeth of the ratchet 147 by the spring 165. When the pawl 164 is seated in the teeth of the ratchet, as depicted in Fig. 19, and when the ratchet is moved in the manner above set forth, the pawl 164 rides over the teeth and prevents movement of the ratchet in the opposite direction. In this manner the step-by-step movement is imparted to the ratchet 147 and, therefore, the portion 154 is alternately disposed in a deep or shallow tooth. When the portion 154 is disposed in a deep tooth 150, as illustrated in Fig. 11, the end of the push rod 148 is retracted from engagement with the trigger 143 and this trigger remains seated in the notch 142 as shown in Fig. 11. However, when the portion 154 is disposed in the shallow tooth 151, the end of the push rod 148 engages the trigger and unseats the trigger from the notch 142. Therefore, when movement is imparted to the lever 136 no movement is imparted to the bell crank 140 by reason of this chsconnection. Since the deep and shallow teeth are alternately ar ranged and, as a step-by-step movement is imparted to the ratchet 147 in synchronism with the operation of the lever 136, it is apparent that the trigger 143 is alternately seated and unseated and, therefore, movement is imparted in a rearward direction to the feed bars 132 only on alternate operations of the machine and, therefore, the printing devices 59 are only advanced upon alternate operations of the machine. v

In theoperation of machines of the character to which this invention appertains, it is often desirable to print from only certain ones of the printing devices, but it is also very desirable that the order of the printing devices. not be interrupted. It is, therefore, customary to pro vide tabs 166 on the printing devices which may be'engaged'by a suitable detector arrangement. The printing devices are arranged in the magazine 129 in the usual manner andare successively fed through printing position, but only certain of the printing devices are used in a printing operation because of the mechanisms, to be described, which prevent printing operation. These mechanisms are controlled by the tabs 166 which may be disposed indifferent transverse locations on the printing devices 59, as is well understood. Further, themachin'e' is arranged to either print or fail to print from the printing devices having tabs in certain positions, and the construction which enables the accomplishment of this includes the shaft 167, Fig. 20, journaled in the frame. A rockable member, generally indicated by168, includes a transverse portion 169 from which bearing portions 170 are extended that are mounted on the shaft 167. An extension 171 of one of the bearing portions ofthe member 168 has a cam member 172 pivotally mounted thereon. A spring 173 interconnects the extension 171 and the member 172. Fast on the shaft 138, carried by the depending portion orlug139 is a rocker 175 which includes a roller 176 that travels on the cam surface 177 of the member 172. When the shaft 138 is turned withthe bell crank 140 the rocker 175 is oscillated and thus the roller 176 is caused to travel over the cam surface 177 to pivot the cam member 172, thus stretching the spring 173. When the spring 173 is stretched the portion 169 of the member 168 is urged upwardly. On the portion .169 is a plate member 180 which has a plurality of holes 181 therein in which vertical pins 182 maybe mounted. The vertical pins 182 include substantially right angularly extending end portions 163 which are disposed below the printing devices or plates 59, Fig. 21. The pins 182 are alined with the tabs 166. If, therefore, when the portion 169 moves upwardly one of the portions 183 engages a tab 166, the upward movement of the portion 169 will be arrested. A bifurcated post member 184, Figs. 15 and 20, is mounted in the frame and a lever 185 is pivotally mounted therein. Extending outwardly from the portion 169 is a pin 186 on which the reduced portion 187 of the lever 185 is rested. When the portion 169 is permitted to move upwardly in an unrestricted manner, as when an end portion 183 does not engage a tab 166, the pin 186 engages the end portion, 187 and moves this end of the lever 185 upwardly while the opposite horizontal bifurcated end 188 is moved downwardly. If, however, the member 169 is held against movement by the engagement of an end porton 183 with a tab 166, it is manifest, that the spring 173 ,will merely be stretched, upon movement of the cam member 172, and, therefore, no effective movement will be imparted to the lever 185. A member, generally indicated by 189, (Figs. 14, 20 and 28) is pivotally mounted on the frame and includes a horizontally extending arm 190 having a recess 191 formed in the upper edge thereof. A verticallyex'tending rod 192 is provided which in cludes a reduced end portion 193 that is mounted in the bifurcated end portion 188 of the lever 185, as clearly illustrated in Fig. 20. The lower end of the rod 192 rests either in the recess 191 or on the flattened upper surface of the arm 190. A projection 194 is carried by the member 189and has blades 195 and 196 extending above the upper edgethereof providing a pocket 197. A downwardly depending arm 198 on the member'189 is disposed between two stops 199 and 200, .Fig'. 14. When the rod 192 is moved downwardlyby the action of the lever 185 the member 189 will be rocked, thus rocking the projection 194 and the blades 195 and 196.

Pivotally mounted on the frame is an arm 201 which carries at the lowermost end thereof a pin 202, Fig. 29, that is arranged to cooperate with the blades 195 and 196 and the pocket 197. At the upper end of the arm 201 is a lug 203 which" lies in the path of the nose 204 on the pawl 157. When the pawl 157 is moved in the manner set forth heretofore the nose 204 engagesthe lug 203 and pivots the arm 201 to elevate the pin 202. If the rod 192 is not moved the pin 202 will be free to move into the pocket 197. However, when the rod 192 is moved, either the'blade 195 or 196 will be moved into position below the pin 202 and this pin will be prevented from entering thepocket 197.

Suitable means are provided for shifting the rod 192 either into or out of the recess 191. When the rod is in the recess 191 the member 18.9 wil1 be disposed so that the end of the lug 198 will, under normal conditions, engage the stop 199. The shifting of the rod 192 is employe'dto accomplish either the printing or the failure toprint or, as it is called, skipping, of the printing devices having tabs, such as 166, thereon, and this printing operation is controlled in the following manner:

An arm 205 is connected to the arm 81 and has an end portion which rests on the pin 202.

When the pin 202 engages either of the blades 195 or 196 and the pin 202 is prevented from downward movement the arm 295 will serve to hold the roller 80' on the rise 84'. When the roller 80 is held on the rise 84 the end of the pawl 77' will be held from engagement with the hardened portion 78, Fig. 1 on the arm 76, but when the pin 202 moves into the pocket 197 the arm 205 will permit the roller 80 to be positioned in the notch 83' and, therefore, the end of the pawl 77 will engage the hardened portion 78'. When so engaged, the arm 76 is moved and, as has been previously brought out, this arm 76 controls the platen operation and, there-- fore, the printing operation. Thus when the pin 202 engages either the blade 195 or 196, the printing operation is prevented, but when it moves into the pocket 197 the printing operation will be carried out. The particular use of this arrangement in the machine will be set forth hereinafter.

On the operation of the machine following the printing device feeding stroke, when the machine is arranged for duplicate printing operations,.it is necessary that thepin 202 not be displaced. Therefore, when the portion 154 is in a shallow notch 151, the roller 156 rides on lug and holds the nose 204 from engagement with lug 203 and, therefore, arm 201 is not moved.

An arrangement is provided for interrupting the operation of the machine when the last of the printing devices 59 has been removed from the magazine 129. This arrangement includes the lever 206, Fig. 1, pivotally mounted on the frame. A bell crank, generally indicated by 207, Fig. 24, includes an arm 208 having a foot portion 209 which extends through the side of the magazine 129 into engagement with the printing devices stacked therein. The arm 210 of the bell crank 207 has a rod 211 extended through the free end thereof which rod has an enlarged head 212 at the upper end thereof. A spring 213 is disposed around the rod 211 between the arm 210 and the head 212. The lower end of the arm 211 is bent to extend at right angles to the main extent thereof, and this bent portion, indicated by 214, is extended through the end of the lever 206. The other end of the lever 206 is bifurcated, as indicated at 215, and a roller 216, Fig. 1, on the free end of the arm 178, is disposed therein. The arm 178 is connected to the link 147, as indicated at 179, and when the link 147' is reciprocated, in the manner set forth, the roller 216 will move through the bifurcation 215 and reciprocate the lever 206 to move the rod 211 vertically. The downward portion of the movement imparted to the rod 211 causes compression of the spring 213 which will act on the arm 210 of the bell crank 207 to urge the foot portion 209 toward the printing devices 59. However, as long as there are any printing devices 59 in the magazine, the foot portion 209 is prevented from inward movement and, therefore, the vertical reciprocation of the rod 211 merely causes alternate compression and expansion of the spring 213. A pivotally mounted dog 217, Fig. 24, has a latch 218 extending therefrom. A spring 219 acts on the dog 217 to urge the latch 218 into the position shown in Fig. 24 wherein it is shown as being positioned above the bar 220. The rod 23, Figs. 1 and 24, is connected to the bar 220 and when the lever 15 is moved downwardly to start the machine, in the manner set forth, the movement is transmitted through the rod 23 to the bar 220, and this bar is moved downwardly and the latch 218 moves into position thereabove, as illustrated in Fig. 24, to prevent upward movement of the bar 220 and, in this manner, the machine is held in operation. However, when the foot portion 209 pivots inwardly and does not engage at least one printing device in the magazine 129, the set screw 221, carried by the arm 210 of the bell crank 207, engages the stud 222 on the dog 217 and pivots the dog to move the latch 218 from position above the bar 220 which permits this bar to move upwardly and, manifestly, this upward movement of the bar 220 imparts similar movement to the rod 23 which permits the lever 15 to move upwardly and thus interrupt operation of the machine.

Mounted on the stud 222 is an arm 223 having a notch 224 therein adjacent the lower edge thereof. A spring 225 acts on the arm 223 to normally hold this arm in the position illustrated in Fig. 24. Connected to the lower end of the arm 223 is link 226. The other end of the link 226 is connected to the armature 227 that is pivotally mounted at the lower end of the magazine. as indicated at 228. A magnet 229 is provided and, when this magnet is energized, in the manner to be set forth, the armature 227 is attracted and the movement thus imparted is transmitted through the link 226 to the arm 223 and this arm is moved against the action of the spring 225 to position the notch 224 below the projecting nose 230 of the arm 206. Therefore, when the arm 206 is moved downwardly, during normal operation, in the manner previously set forth, the projection 230 seats in the notch 224 and the arm 223 will be moved downwardly which moves the dog 217 to move the latch 218 from retaining position. The spring 225 normally holds the notch 224 from alinement with the projection 230. The spring 219 acts on the dog 21'? at all times and, therefore, as soon as the lever 15 is moved downwardly, which results in similar movement being imparted to the bar 220, it is manifest that the latch 218 moves into retaining position which is illustrated in Fig. 24.

The devices which clamp the paper and associated mechanisms constitute the means to bring about the proper distribution of the printing on the sheet 29. brackets 31 and 32, the tubular support 30, and the lister slide 33. This lister slide is movable along the support 30 to move the sheet 29 to bring about the vertical spacing between the various transverse rows of indicia. This spacing is carried out at the time the sheet is arranged to receive impressions in the column 57 and is accomplished in the following manner: on the bracket 63 a bearing 231, Fig. 28, is provided in which a shaft 232 is journaled which includes a right angularly extending portion having a roller 234 at the lower end thereof. On the end of shaft 72 opposite the arm 79 is an arm 235, Fig. 1, which includes a nose portion 236. On the arm 238, mounted on the shaft 232, is a stud 237. When the shaft 72 is operated in the manner previously set forth the arm 235 is moved and the nose 236 thereof engages the stud 237 to move the arm 238, shaft 232, and the roller 234. When the machine is arranged to bring about the imprinting of the indicia in the column 57 the spacing mechanisms are alined with the roller 234, as illustrated in Figs. 2 and 3. These spacing mechanisms include the racks 239 and 240 slidably mounted in the brackets 31 and 32 and extended through the lister slide 33. The rack 239 has square teeth 241 provided therein, as best illustrated in Fig. 6, and will be referred to hereinafter as the locking rack. The rack 240 has ratchet teeth 242 provided therein, as best illustrated in Fig. 10, and this rack will be referred to hereinafter as the spacing rack. The forward end of the spacing rack 240 is tapered, as indicated at 243, Fig. 6, and the roller 234 bears against this tapered end.

The ends of the racks 239 and 240, opposite the ends adjacent the roller 234, extend through a recess in the bracket 32. A block 241', Fig. 10, supports a stud 244 which extends through a projection 240' on the rack 240, which projection extends past the block 241'. The rack 239 is secured to the block 241. A coil spring 245 is disposed about the stud 244 between the head thereof and the projection 240'. When the roller 234 is moved, in the manner set forth, during engagement with the end 243 of the spacing rack 240, the spring 245 is compressed. In the lister slide 33 a pawl 246, Fig. 10, is slidably mounted which is urged into seating en- These mechanisms comprise the gagement with the teeth 242 by the spring 247,

253 and 254. Secured to this rod 255 is a pin When the rack 240 is moved in the manner set forth, this pawl 246 rides over the beveled portion of the tooth in the rack 240 which it has been engaging and then drops behind the shoul-- 'der of the succeeding tooth. During this time the lister slide 31 is held against movement by the seating of the pawl 248, Fig. 6, in the teeth 241 of the locking rack 239, said pawl being urged into such engagement by the spring 249. As

best illustrated in Fig. 10, a recess 250 is provided in the upper edge of the rack 239 rearwardly of the teeth 242. A roller 251, mounted on the pawl 252, seats in this recess. The pawl 252 is mounted on the rack 249. A bearing 253,

' Fig. 3, is provided onthe bracket 31 and a bearing 254, Fig. 3, is provided on the casting 32. A

rod 255 is rotatably mounted in these bearings 256, Fig. 7, which rests on the upper edge of the pawl 252. When the spacing rack 240 is moved by the roller 234 to compress the spring 245 the roller 251 rides out of the notch 250 and moves the pin 256 upwardly. In the rod 255 a groove 257 is provided and a collar 258, Fig. 4, carried by the lister slide 33, and through which the rod 255 is extended, has a pm 259 thereon which travels in this groove. Connected to the collar 258 is an arm 260 which extends through an opening 261, Fig. 4, in the lister slide 33. The

arm 269 also extends through the notch 262 in the side of the pawl 246, Fig. 19, and into the notch 263 in the side of the pawl 248, Fig. 6.

When the pin 256 is raised in the manner set forth, the rod 255 is rotated and, therefore, the collar 258 and the arm 260. The arm 269 is moved sufficiently to withdraw the pawl 248 from engagement'with the teeth 241 and, fol lowing this, the lister is moved transversely, in a manner to be described, to disengage the end 243 of rack 240 from the roller 234. The pawl 246 is seated in the teeth 242, as the above described movement of the arm 269 does not unseat this pawl, and therefore the lister slide 33 is moved forwardly when the spring 245 is permitted to expand which follows the above described disengagement of the end 243 from the roller 234. The expansion of this spring moves the lister slide 31 a distance equal to the length of one tooth on rack 240. As soon as the spring 245 has expanded sLn-ficiently to move the spacing rack 240 in the above described amount, the roller 251 reenters the notch 250 and the pin 256 is lowered. This permits the arm 269 to drop and the pawl 248 reseats in a tooth 241. Therefore, the racks are disposed similarly to the disposition thereof prior to the movement imparted to rack 249 by roller 234. The foregoing opera tion moves the lister slide in an amount sufficient to provide proper spacing between the transverse rows of indicia on the sheet 29a. Inasmuch as the spacing depends upon the spacing of the teeth in the racks, it is manifest that different spacing may be easily secured by substituting, for .the me is 239 and 240, other racks having different tooth spacing.

In order to distribute the printing in either of the columns 57 or 58 the lister structure is shifted transversely of the machine to similarly shift the sheet 29.

shaft 269 is'journaled. Fixed on the shaft 269 stud 275 if the mechanisms operated by link 271 should jam. When the main operating member 26 is moved in the counter-clockwise direction, as viewed in Fig. 1, as previously set forth, this movement is transmitted through the link 271 to the gear segment 279 to impart movement to the gear segment 267, the gear segments 270 and 267 being moved from the position illustrated in Fig. 1 into the position illustrated in Fig. 6. Mounted at the upper end of the sleeve 266 is a bracket 276 on which a pawl 277, Fig. 18, is pivot-ally mounted. The pawl 277 is urged toward the disk 278, Fig. 17, by the spring 279,

Fig. 18. Diametrically opposed notches 280 and 281 are provided in the periphery of the disk 278 and thepawl 277 may be alternately seated in these notches. During the time the main operating member 26 is moving in a counter-clockwise direction as described the gear segment 267 is being moved from the position illustrated in Fig. 1 into the position illustrated in Fig. 6, and the bracket 276 will be moving in a clockwise direction, as viewed in Fig. 18. Referring to Fig. 18, when the bracket 276 is moved, as above, the pawl 277 is withdrawn from the notch 281 and moved over the periphery of the disk 278'until said pawl seats in the notch 289. When the main operating member 26 starts to move in the opposite or clockwise direction the gear segment 267 is moved from the position illustrated in Fig. 6 into the position illustrated in Fig. 1' and during this movement the bracket 276' moves in a counter-clockwise direction, as viewed in Fig. 18, and, by reason of the engagement of the pawl 277 with the shoulder of the notch 280, the

disk 278 is moved. Mounted above the disk 278 is a disk 282 having a diametrical dovetail slot 283 therein. A slide 284 is adiustabl-y mounted in the dovetail slot 283 and the connecting member 285 is pivotally mounted on one end of the slide 284. A rod is attached to the connecting member 285 and suitable connecting means 287 interconnects the slide 288 and the free end of the rod 286. The slide 238 is slidably moun'h ed in the block 289, 6, carried on the frame of the machine, said slide 288 being movable transversely of the machine. By reason of the arrangement including pawl 277 it is manifest that, upon a complete operation of the main operating member the slide 288 is moved in one direction and on the successive complete operation of the main operating member 26 the slide 283 moved in the opposite direction. In the casting 32, an opening 290, Fig. 7, isprovided in which a sleeve 291 is arranged. A pin 292 is fitted in the sleeve 291 and includes an enlarged portion 293. A spring 294 is fitted about the pin 292 between the enlarged portion 293 and the lower end of the sleeve 291 and urges the pin 292 downwardly to position the lower end of said pin in the notch 295 inthe slide 288. Therefore, when the slide 288 is reciprocated, in the manner set forth, and when the pin 292 is seated in the'recess 295 it is apparent that the

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