US3186338A

US3186338A - Inking mechanism for rotary printing press

Info

Publication number: US3186338A
Application number: US235192A
Authority: US
Inventors: Henri E Peyrebrune; Roman L Kobos
Original assignee: Miehle Goss Dexter Inc
Current assignee: Miehle Goss Dexter Inc
Priority date: 1962-11-05
Filing date: 1962-11-05
Publication date: 1965-06-01
Anticipated expiration: 1982-06-01

Description

June 1, 1965 H. E. PEYREBRUNE ETAL 3,186338 INKINGMECHANISM FOR ROTARY lRINTING PRESS FiledvNov. 5, 1962 9 Sheets-Sheet l ATTORNEYS June 1, 1955 H. E. PEYREBRUNE ETAL 3,186,338

INKING MECHANISM FOR ROTARY PRINTING PRESS Filed Nov; 5, 1962 9 sheets-sheet 2 INVENTORS HENRI E. PEYREBRUNE ROMAN l.. Koeos BY ATTORNEYS June 1, 1965 H. E. PEYREBRUNE ETAL 3,186,338

INKING MECHANISM FOR ROTARY PRINTING PRESS Filed Nov. 5, 1962 9 Sheets-Sheet 3 INVENTORS HENRl E. PEYREBRUNE ROMAN L. Koaos BY ATTORNEYS June l, 1965 Filed NOV. 5, 1962 H. E. PEYREBRUNE ETAL INKING MEcHANlsM FOR ROTARY PRINTING PRESS 9 Sheets-Sheet 4 INVENTOR5 HENRI E. PEYREBRUNE ROMAN L. KOBOS BY ATTORNEYS June l, 1965 H. E. PEYRl-:BRUNE ETAL 3,186,338

INKING MECHANISM FOR ROTARY PRINTING PRESS Filed Nov. 5, 1962 9 Sheets-Sheet 5 3/8 4| 42 73 /l8 F IG. 8

INVBNToR HENRI E. PEYREBRUNE R MAN L.. KOBOS BY :IBM Mmfw ATTORNEYS June 1, 1965 H. E. PEYREBRUNE ETAL 3,186,338

INKING MECHANISM FOR ROTARY PRINTING PRESS Filed Nov. 5, 1962 9 Sheets-Sheet 6 Illumina-Ilm l-IIIIIMIHIVMLMINIIIIIL; 1

It) K) w a, m bnl f3 s s e S'i N m o 3 N n N N o Q E 10N l G 9 g N l l l w 9 I x N 1' m c v v mm ro m E io m Y* o l .n D d 2 m i' g un Q gl S w la' '2 a N al o INVENTORS g wm HENRI E. PEYREBRUNE gg ROMAN 1 Koaos a E Y N N ATTORNEYS June l, 1965 H. E. PEYREBRUNE ETAL INKING MECHANISM FOR ROTARY PRINTING PRESS Filed Nov. 5. 1962 9 Sheets-Sheet '7 INVENTORS HENRI E. PEYREBRUNE Y ROMAN L. KOBOS QBMMMYM ATTORNEYS June 1, 1965 H. E. PEYREBRUNE ETAL 3,186,338

INKING MECHANISM FOR ROTARY PRINTING PRESS Filed Nov. 5. 1962 9 sheets-sheet s HENRI E. PEYREBRUNE ROMAN l.. KoBos BY ATTORNEYS June 1, 1965 H. E. PEYRl-:BRUNE ETAL 3,185,338

INKING MECHANISM FOR ROTARY PRINTING PRESS Filed Nov. 5, 1962 9 Sheets-Sheet 9 HENRI E. .PEYREBRUNE Y ROMAN L. KOBOS ATTORNEYS United States Patent M normar The invention relates to inking mechanism for rotary printing presses and has reference inparticular to novel means for mounting the rollers of the inking mechanism to provide for bodily movement of the same with, as well as to and from the plate cylinder for rendering the cylinder conveniently accessible yto the operator so that the form inking rollers can be easily installed yand removed, and whereby the installation of the printing plates on the cylinder and their removal from the cylinder is materially facilitated.

A more specific object of the invention is to provide new and novel swing plates for journalling the vibrating and distributing rollers ofthe inking mechanism, the swing plates in turn carrying brackets for journalling the form rollers which have direct contact with the plate cylinder for applying ink thereto. It is possible with the present arrangement of swing plates and brackets to manually and automatically trip the` form rollers from the plate cylinder and to also manually oscillate the swing plates to bodily move all the rollers of the inking mechanism, thereby spacing them from the plate cylinder for convenient access tothe cylinder. i

Another object ofthe invention isto provide swing plate i and bracket structure for journalling the respective form, vibrating and distributing rollers, and which will have a common center mounting for the plates on the press side frame, thereby making possible the necessary rotational driving of the rollers and the required oscillating movement of the vibrating rollers in addition to the manual and l automatic tripping and spacing as described.

Another object of the invention resides in the fact that the present roller arrangement has been designed to supply ink to the plate cylinder in the proper proportional amounts with each form roller having contact with two vibrating rollers both of which are oscillated, with one roller of each pair being gear driven. l

Another object in connection with the foregoing is to provide form roller assemblies which will have, limited floating action relative to the swing plates to permit the form rollers to maintain aA predetermined contact relation .Vith the plate cylinder `when the latter is in its impression position as well as its trip position. This feature is desirable, since it facilitates 'the setting of the rollers and the inking operations prior Vto the start of printing. l

Another object of the invention resides in the provision of swing plates and brackets as described, and wherein tripping means areprovided for automatically tripping i the plate cylinder from the impressioncylinder in the event a sheet is not fed thereto, and which is followed by -a tripping action oi the iront swing plate and then a tripping v action of the rear swing plate. On return movement the sequence is reversed and thus the form rollers supported by the front swing plate are caused to contact the plate t ICC means for automatically tripping the swing plates, and wherein novel structure is provided for lubricating the swing plates from their pivot shafts, thus eliminating ilexible hoses, and rotary unions in addition to manual oiling operations. v

Another object is to provide swing plates and bracket structure for -journalling the rollers of the inking mechanism wherein a planetary gear arrangement is provided in associated relation with the swing plates for positively `rotating certain vibrating rollers.- The present inking mechanism is further characterized in that `the swing plates are supported for oscillatingmovementon an axis coinciding with the center of the planetary gear arrangement, whereas the brackets are supported for movement on the shafts of two of the vibrating rollers which are positively driven.-

With these and Various other objects in View, the invention may consist'of certain novel features of construction and operation, -as will be more fullytdescribed and particularly pointed out in the specification, drawings and claims appended thereto. li

In thedrawings which illustrate an embodiment of the device and wherein like reference characters are used to designate like parts: f Y i FIGURE 1 is an Vend elevational View, with parts shown in section, of the inking mechanism constructed in accordance with and embodying the improvements oi Athe present `invention,the parts beingillustrated in the positionv they assume when on impression;

FIGURE 2 is an endV elevational View showing the .swing plates and associated structure in the position the parts assurnewhen onimpression; t

FIGURE 3 is an elevational View similar to FIGURE 2,

but illustrating Vthe position or the parts when the form rollers` are tripped; f i

' FIGURE 4 is an elevational view similar to FIGURE 2 but illustrating the position of theparts when the swing plates have-been oscillated to provide access to the plate cylinder; Y

FIGURE 5 is a sectional view showing theassociated relation which certain parts of the present inking arrangement have with the journalling structure for the plate cylinder;

FIGURE 6 is a detailsectional view of a rear bracket showing the eccentrics and adjusting means for the sockets which journal the form rollers supported by the rear brackets; y i

FIGURE 7 is a sectional View taken `substantially along line 7 -7 of FIGURE 6';

FIGURE 8 is an end elevational View showing the mechanism for `tripping the plate cylinder, 4the mechanism 4`for tripping the `front swing plate, and the driyingmeans Ifor the ductor roller;

FIGURESQisavieW taken substantiallyvalong line FIGURE 10 is an elevationalview of thelpawl and ratchet structure shown in FIGURE 9;

FIGURE 1l is a perspective view of the pawl and ratchet only;

FIGURE l2 is a transverse sectional View substantially on the axis of the trip' shaft and showing the mechanism journalledon the shaft and the various parts associated therewith;

FIGURE 13 is a ,sectional View taken substantially Von line IES-13 of FIGURE 12; Y

FIGURE 14 is an elevational view showing the planetarygear arrangement for, rotating the ink drum and the vibrating rollers; f

FIGURE 15 is a sectional lview taken substantially along line 15-15 of FIGURE 14;

FIGURE 16 is an end elevational view, parts being shown in section, of the wobble plate mechanism for effecting the axial reciprocating movements of the vibrating rollers;

FIGURE 17 is a sectional viewtaken substantially along line 17-17 of FIGURE 16;

FIGURE 18 is a sectional viewrtaken substantially along line 18-18 Vof FIGURE 16;

FIGURE 19 is a sectional view taken substantially along line 19-19 of FIGURE 16;

FIGURE 20 is a schematic View showing the present inking mechanism with the plate cylinder and forminking rollers on impression;

FIGURE 2l is a schematic View similar to FIGURE 20 but showing the'v plate cylinder in tripped position with respect to the impression cylinder;

FIGURE 22 is a schematic View' similar to FIGURE 20 and showing both the plate cylinder and form inking rollers in their tripped position; and Y FIGURE 23 is a schematic view similar to FIGURE 20 Ybut showing the rollers of the present inking arrangement spaced from the plate cylinder to provide access to the cylinder. Y

FIGURE 1 shows the side frame 10 of a rotary letter press and illustrates in connection therewith an arrangement of the rollers comprising the present inking mechanism. In accordance with thevinvention the rollers are carried by swing plates so that bodily movement of the rollers can be elected for tripping purposes and to provide convenient access to the plate cylinder. In the following description theswing plates which support the form rollers that engage the plate cylinder first as regards the direction of rotation will be referred to as the front swing plates, whereas those swing plates which support the form rollers which subsequently engage the plate cylinder are referred to as the rear swing plates.

The rollers are supplied with ink from the reservoir 12 by means of'a reservoir roller'13 and theoscillating ductor roller- 14. The shaft 15 for the ductor roller is journalled at each end` by an arm 16, the said arms being fixed to the shaft 17 extending between and mounted for rotationin the side frames and 11 of the press.

FIGURE 8 shows thestructure for oscillating the shaft 17 and which includes the lever 18 and the arm 19. The said lever is fixed to shaft 17, whereas the :arm 19 is free on the shaft. The roller 20 is` carried by the arm 19 at its free end and said roller contacts the periphery of the cam 21 suitably mounted for rotationwith thev gear wheel 22. The gear wheel has meshing relation with the ldrivingpinion 23 xed to the shaft 24 of the plate cylinder 25, and thus the gear wheel 22 and cam 21 arevrotated in timed relation with the rotations of the plate cylinder. The arm 19 is oscillated by rotation of the cam 21 and said movement is transmitted by the coil spring 26 to the lever 18, and thus tothe shaft 17. The action of the. cam in moving the lever and arm in an upward direction will cause the ductor roller 14 to movefrornV the ink drum 27 to the reservoir roller 13. However, the arm 28 is suitably xed to the shaft 17 Vandthe coil spring 30`is confined between the arm and the arm 33 pivoted at 34 to the lever 35. Approximately midway of Vits length at 36 the lever is pivotally secured to the side frame 10, :and said lever at its upper end at 37 is pivoted to the rack 38.

'side frames 10 and 11 of the press.

The rack has meshing relation with the pinion 40 rotatable on the reservoir roller shaft. A one-way clutch, not shown, is interposed between the pinion 40 and the shaft for the reservoir roller. The rack 38 accordingly reciprocates as the l oit-center pin 32 rotates with gear wheel 22. The meshing relation of the rack with the pinion V4t) produces rotation of the pinion iirst in one direction and then in a reverse direction. However, by reason'of the one way clutch the reservoir roller is rotated only in a clockwise direction, FIGURE l. The rack 38 is slidably mounted in the guide member 41 which is supported by the eccentric 42 so that the guide member can be elevated and lowered with respect to the pinion 41). The handle 43 is provided for rotating the eccentric and when located in a right hand position as shown in FIGURE 8, the guide member is lowered so that the rack meshes with the pinion. When the handle 43 is rotated to its left hand position, the guide member is elevated for lifting the rack from the pinion.

The rollers of the inking mechanism The ink drum 27 is rotated by a geardrive to be presently described and las shown in FIGURE 20 said ink drum has `frictional contact with the distributing roller 44 which in turn has contact with the gear driven Vibrating roller 45. The second distributor roller 46 has contact with the vibrating rol-ler and also with the gear driven vibrating roller 47. The roller 47 has contact with the form `inking rollers 48 and 50gfor applying ink to the form on the plate cylinder. Form roller 48 has contact with the vibrating roller 51, whereas -form roller 5t) has contact with the oscillator roller 52. From the oscillator roller v52 ink is transferred to the

form inking roller

53 and 54. The gear driven vibrating roller has contact with both lof the form inking rollers `53 and 54, `and said roller 54 in turn contacts the Vibrating roller 56.

Journallz'ng means for the swing plates In accordance with the invention certain lrollers of the inking mechanism as .above described vare carried by spaced front -swing plates 58, FIGURES 2, 3 and 4, Whereas the remaining rollers are carried by spaced rear swing plates 60. Each swing plate is located adjacent a side frame of the press as shown'in FIGURE l5, yand the front swing plates pivotally support a pair of front brackets 61, whereas the rear swing plates pivotally support a pair of brackets 62. The ink drum 27,

rollers

44, 45 and 46 are journal'led by the front swing plates, with

rollers

47, 48, 5t) and 51 being journalled by the front brackets carried by said plates. The roll-ers, namely 53, 54, 5S and 56 are carried by the rear brackets pivotally supported by the rear swing plates. FIGURE 15 illustrates the mounting structure for the swing plates and brackets and which includes a stud shaft such as 63 for both swing plates suitably fixed in a non-rotatable manner in each of the A portion of the stud shaft 63 extends inwardly of its yside frame and provides the journalling portion 64, whereas the exterior eX- tending portion 65 of the stud shaft for the press side v -frarne 11 provides a ball bearing m-ountingfor the hous- 'trated in FIGURES 14 and l5. Each of the front swing plates :are rotatably mounted on a journalling portion 64 with the cored passageway 67 in the plate in alignment with groove 68. The groove 68 in turn communicates with the passageway 70 extending longitudinally Iof the stud shaft 63 `and which communicates atits opposite end with `the oil reservoir 71 provided by the segmental cover plate 72 held in place by the bolt 73. The rear swing .plates are earch similarly mounted on the journalling portion 64 to the inside of its adjacent front swing plate, the cored passageway 74 aligning with the groove 75 which also communicates with the longitudinal passage '70 in the ing roller 47 is thus journalled for rotation by the front `swing plates, and the structure in turn journals the front brackets 61 0n the fsaid swing plates. In a similar manner the shaft 78 for the vibrating roller 55 extends through a bearing `at each end common to a rear swing plate 60 and rear bracket 62 at its ends. The shaft also projects through an arcuate slot in the press -side frame and receives a pinion 79. The gear 66 is driven `from the plate cylinder by means of the driving gear S which is suitably iixed t-o the shaft end 81 ci the 4said plate cylinder. As the plate cylinder is caused to rotate, gear 00 will drive gear 66, which in turn will drive the planetary gear 82, FIGURE l5, to thereby effect rotation of the

pinions

77 and 79, .thus rotating the

shafts

76 and 7 0 and the vibrating rollers i7 and 55. As the result of the planetary gear arrangement for the vibrating rollers, it is possible to oscillate the swing plates in opposite directions to space the form rollers from the plate cylinder for tripping purposes and for spacing all the rollers from the plate cylinder to provide convenient access thereto.

Tripping mechanism for the plate cylinder The cam 04, FGURE 8, having the internal cam race 35 is suitably fixed to the shaft journalling the impression cylinder 06. The bell crank 07 rotatable on stud shaft 03 has the iarm 89 carrying the holle-r 90 which rides within the cam race 05. The bell crank also provides an arcuate part 91 which includes

projections

92 and 93 at respective ends. The shoe 94 is pivotally connectedat 95 to the armV 96 also mounted 4on shaft 80, and said arm includes the part carrying a pivot pin 97. A coil spring 90 is located between the shoe 9d, iarrn 96, the spring being located bellow pivot 95 andV thus maintaining the shoe biased in a clockwise direction. The pivot pin 97 pivotally supports the colla-r 100 which carries the rod 101 having `a pivoted connection at 102 to arm 103 which forms part of the eccentric journalling structure, FIGURE 5, yfor the respective ends of the plate cylinder 25. Oscillating movement of the arm 103 will effect such movement of the eccentrics 104 as to cause tripping ofthe plate cylinder on and off impression as regards the impression cylinder S6.

The rod 105 is arranged to be held in the solid line position of FIGURE 8 as long as a sheet is fed to the coacting plate and impression cylinders and against the tension exerted by the coil spring 106 which is conned between a xed stop on the press frame and a fixed stop on the rod. The lever 107 pivoted at 10S carries the pin 109 and said lever is slidably associated at its lower end at 110 with the rod 105. The rod carries a stop 111 located to the left of the slidable connection 110 so that normally the stop will contact the connection due to the tension exerted by spring 106, thus holding the pin 109 against the exterior arcuate surface of the shoe 94. When a sheet to be printed is fed to the printing couple of the press, the rod 105 will remain in its position of FlGURE 8 against the tension of the coil spring 106 and thus the pin 109 is relieved as regards its contact with the arcuate outer surface of the shoe 94. The coil spring 98 thus maintains the shoe in riding contact with the part 91.

i The cam 84 will be simultaneously rotated so that arm 89 is oscillated to in turn oscillate part 91, and it will be understood that the projection 92 will move from a posiin front of the top linger 112 of the shoe 94. Also, the projection 93 will be located just beyond the linger 113 at the lower end of the shoe and the part 91 will so oscillate with the shoe remaining in position as shown in FIG- URE 8 as long as sheets are fed to the press'. However, in the event a sheet is not fed, the rod 105 will be released and will assume the dotted line position of FIG- URE 8 due to the tension of spring 106. The tension of spring 106 is sutlicient to overcome spring 98 and the shoe 9d will thus be oscillated in a counterclockwise `direction which will bring the finger 113 into the path of Vprojection 93. On the next oscillating stroke in a counterclockwise direction the projection 93 will couple the shoe to the oscillating part 87 and the return oscillating stroke of part 07 in a clockwise direction will so move the arm 96 and the pivot pin 97 as to pull down arm 103 rocking the arm counterclockwise and likewise the eccentrics 104. This counterclockwise rotation of the eccentrics journalling the plate cylinder will strip the cylinder otl of impression.

The tripping of the plate cylinder produces bodily movement of the cylinder in an upward direction, and this relative bodily motion is transmitted to the form inking rollers, due to the supporting structure for the rollers, and whereby the pre-established contact relation between the respective form rollers and the plate cylinder remains constant. Said supporting structure includes the swing plates which support the form inking rollers in a manner permitting iloating action of the same, or in other Words, swinging movement is possible due to the pivotal mounting of the swing plates and their resultant ability to oscillate and move in directions to and from each other. FIGURE 21 shows the position of the parts following a tripping of the plate cylinder and before the swing plates are tripped to space the form inking rollers from the plate cylinder. FIGURE 22 shows a trip position of the swing plates and form inking rollers, and the mechanism for so actuating the front and rear swing plates will now be described.

Automatic tripping means for Ike front swing plates Referring again to FIGURE 8, a bell crank is associated with the rod 105, the same h-aving a fixed pivotal mounting at 114 and including arm 115 connected to the rod 105, and arm 116 pivotally connected to the rod 117 through a llost motion connection 118. Rod 117 is pivotally joined at 119 to the bell crank 120 fixed to shaft 121, and providing the depending arm 122. As best shown in FIGURE 12 the shaft 121 is mounted for rotation in brackets 123, and a ring member 124i, also shown in FIGURE 9, is fixed to shaft 121. The said ring member has bodily movement when the shaft 121 is oscillated through its operative connection with the reciprocating rod 105.

The ring member has associated relation with ratchet structure which has a keyed relation with the trip shaft 125, FEGURE 12. The said trip shaft is suitably mounted for rotation in the side frames 10 and 11 or" the press, and the housing 126 is supported on the trip shaft for free rotation as shown. The housing 126 provides a long arm carrying at its end the roller 127, FIGURE 8, the said tion as shown in FIGURE 8 to a position immediately roller having contact with the elliptical cam 12S suitably secured to the gear Wheel 22 so as to rotate with said gear wheel and with the cam 21 as evidenced from the structure shown in FIGURE. 17. The housing 126 also pro- Vides a short arm which carries the pin 130, the said pin pivotally supporting the pawl structure which includes pawl 131 and pawl 132, FIGURES 9, i0 and 11. The rod 129 carrying the coil spring 139 is also pivotally connected by the pin 130 to the short arm of the oscillating lever structure and since the coil spring 139 is confined between a lower stop on the press trarne and an upper stop on the rod the compressive force of the spring maintains the roller 127 in contact with the cam 123.

A double ratchet wheel is mounted on trip shaft 125, being keyed thereto, and which provides an inner ratchet Wheel 133 having teeth 134 separated by ilat areas 135, and an outer ratchet wheel 136 likewise having teeth 137 separated by flat areas 130. Each ratchet includes four teeth with four flat areas so that the teeth are displaced ninety degrees. However, the inside ratchet wheel 133 and the outside ratchet wheel 136 are so arranged that the teeth of the unitary structure have a forty-tive degree displacement. The pawl 131 coacts with the ratchet wheel 136, whereas the pawl 132 coacts with the ratchet wheel 133. The pawl 132 at its end carries a roller 14) as best shown in FIGURE l2, and said roller is located in alignment with the ring member 124. As a result the position of the ring member will control the operative position of the

pawls

131 and 132.

When the ring member 124 is in the full line position of FIGURE 9, it will be understood that a sheet has been fed to the printing couple of the press, and thus the ring member is inoperative contact with the roller 140 to hold the pawl structure as shown in FIGURE 9. The pawl 131 is held against a ilat surface 138 of the ratchet 136 and which is against the force exerted by the coil spring 141 operatively connected by the rod 142 to the pawl structure, FIGURE 8. `With the actuation of the ring member 124 against the roller 140, the pawl structure is simultaneously oscillated, due to rotation of the elliptical cam 128, and thus the pawl 131 merely rides on the flat surface 133 and between teeth 137. When a sheet is not fed to the printing couple of the press, the ring member 124 will assume the dotted line position of FIGURE 9, and in this position the ring member will not engage the roller 140. The spring 141 is thus operative to cause the pawl 132 to coact with its ratchet wheel 133, with pawl 131 being rendered free. The oscillating action of the pawl structure will cause pawl 132 to engage with a tooth'134 and on the return oscillating stroke the ratchet wheel structure and trip shaft will be rotated fortyfive degrees. This action of the -trip shaft is employed to effect a tripping of the front swing plates and the structure for accomplishing the same will be presently described. However, it will be understood that when a sheet is again fed to the printing couple of the press and the ring member 124 is rendered operative, the pawl 131 is caused to coact with its ratchet wheel-136, and with the next oscillating stroke of the pawl structure, the pawl 131 will contact a tooth 137 again effecting forty-five degrees rotation of the trip shaft 125. This second rotation of the trip shaft, athough in the same direction, is effective to restore the front swing plates to their original position and the form inking rollers of said plates are returned to their inking position.

The trip shaft 125 carries a gear 144 which is keyed to the shaft and which has meshing relation with a pinion 145 keyed to shaft 146 journalled in the press side frame 10 and bracket 147, as shown in FIGURE l2. The gear 144 is four times as large as pinion 145 so that when the gear rotates forty-five degrees it causes the pinion to rotate for one hundred and eighty degrees. The end of shaft 146 opposite the pinion carries a part 148, FIGURES 2, 3 and 4, which is xed thereto and provides the pivot pin 149 which pivotally connects the rod 15G to said part. The end of rod 153 is pivotally connected at 151 to the triangular shaped lever 152 suitably xed to shaft 153, also journalled by the side frame l@ of the press and by the bracket 147. The link 154 is pivoted at 155 to the triangular lever 152 and said link at its opposite end is pivoted at 156 to link 157 having pivotal connection at 158 with a thrust bar 160. Each pivotal connection 158 includes an eccentric journalled for rotation in a swing plate 58. Accordingly, rotation of the said eccentrics will either apply a downward thrust to its thrust bar 160, or will relieve the bar lof such thrust. A shoe 161 is suitably secured at space-d locations 162 to each front bracket 61. Each said shoe and the lower end of each thrust bar have contact with a ring 163, FIGURE 5, suitably fixed by the screws 164 to an eccentric 1114. Each ring is thus associated with the reduced end structure of the plate cylinder 25 and it will be understood that the rings are in alignment with and have the same diameter as the cylinder bearers 165.

When the trip shaft is rotated forty-five degrees by the pulling action of pawl 132, the gear 144 will rotate pinion 145 one hundred and eighty degrees, and as a result the part 148 is rotated from its position of FIGURE 2 to its position in FIGURE 3. The triangular lever 152 is likewise rotated and through the connecting linkage similar rotation is given the eccentrics at connection 158. The front swing plates 58 are lifted, since the thrust bars 15'@ are in fact anchored at their lower end by contact with their respective rings 153. This upward movement of the swing plates 58 carries with them the front brackets 61 and the form inking rollers 43 and 5@ which are accordingly tripped off the plate cylinder.

The said form inking rollers will maintain their tripped position until a sheet is fed to the printing couple of the printing press. As previously described this has the effect of so positioning the ring member 124 as to render the pawl 132 inoperative and pawl 131 operative. The oscillating movement of the lever structure carrying the pawls will produce a pushing action of pawl 131 against -a tooth 137 and thetrip shaft is again rotated for fortyve degrees. However, this is transformed into one hundred and eighty degrees rotation of shaft 145, and the triangular lever 152 is rotated to rotate the eccentrics at the connections 153, thus lowering the swingplates and returning the form rollers to their inking position. The rear swing plates are tripped immediately following the tripping of the front swing plates.

Automatic tripping means for the rear swing plates The trip shaft 125 has suitably keyed thereto a pair of cams 166, FIGURES 2 and l2, for the rear swing plates 6i?, respectively, each cam having four high points 167 angularly spaced ninety degrees around the periphery ohf the cam. Each of the rear swing plates has an extensron 163 integral therewith and which carries a roller 17@ at its outer end, the roller having contact with the periphery of its respective cam 166. When the trip shaft 125 is rotated through the failure of a sheet to be fed to the printing couple of the press, the cams 166 are rotated to a corresponding degree and a high point 167 is caused to engage the roller 170 oscillating the rear swing plates 60 in a clockwise direction, FIGURES 2, 3 and 4. This action elevates the rear brackets and the

form inking rollers

53 and 54 are tripped oii the plate cylinder. When a sheet is again fed to the printing couple the resultant forty-live degree rotation of the trip shaft 1725 causes the high points 167 of the cams 166 to pass'beyond the rollers 17h to again occupy a low position on the cams. The rear swing plates are oscillated in a counterclockwise direction and the form inking rollers are returned to their inking position.

In order to control movement of the rear brackets 62 and also maintain the

form inking rollers

53 and 54 1n proper contact relation with the form on theplate cylinder, the invention provides structure including a shoe 171 for each rear bracket, the shoe being secured to each bracket at spaced locations 172. The structure also includes the pivot 173 which joins the bracket to the semi-circular collar 174, the collar having encircling relation with the reduced end structure 24 at each end of the plate cylinder 25. As regards each collar 174 1t is pivotally connected at its ends as at 175 to arcuate arms 176 and which are resiliently joined at their lower terminal ends by the connecting rod 177 carrying resrlrent coil springs 178. The coil springs exert a yielding force against the ends of the arms to bias the arms 1n a direction towards the other. Approximately midway of the arms 176 a shoe such as 180 is provided and the said shoes have contact with the periphery of the ring 163. Accordingly the resilient compressive force exerted by the coil springs 178 is such as to exert a pull on each respective collar 174 and also on the connected bracket e2 to yieldingly maintain the shoe 171 in contact with the ring 163 and thus the

form inking rollers

53 and 54 in contact with the plate cylinder. Action of the rear swing plates 6i? and brackets 62 to trip the said form inking rollers will pull the collar 174 in an upward direction. Since this must take place against the compressive force exerted by coil springs 178, the structure provides a control for the form inking rollers although permitting free actuation thereof.

An important feature of the tripping means as described resides in the fact that the

form inking rollers

48 and 50 carried by the front swing plates are tripped first and following this action tripping action. of inking

rollers

53 and 54 carried by the rear swing plates takes place. Likewise, on return movement for an impression, the front form inking rollers 48 and Sii are actuated first and then the rear form inking rollers are caused to contact the plate cylinder.

Journallng structure for the inkng rollers The shaft 1S2 journals the ink drum 27 in the spaced front swing plates 58, with the shaft at one end extending through an elongated slot 183 in the side frame to permit bodily movement of the shaft 182 as the swing plates are oscillated. As evident from FIGURE 14 the shaft 182 carries the pinion 184 at the end which extends through the slot 183 Vand the said pinion is part.

of the planetary gear arrangement, since the same has meshing engagement with the sun or planetary gear 82.

The vibrating rolier 45 is also gear driven from the planetary gear 82. The shaft 185 journals the roller on the spaced front swing plates 58, and as previously described in connection with the ink drum, one end of shaft 1&5 extends through an elongated slot in a frame of the press and receives the pinion 186. The said pinion has meshing relation with the planetary gear 82.

The

distributor rollers

44 and 46 are rotated through frictional contact with their adjacent rollers, and the same are journalled by sockets carried by the front swing plates. The structure is best shown in FIGURE 1 wherein it will be seen that as regards the shaft for the distributor roller 44, sockets such as 187 are provided and which are pivotally connected to the swing plates 58, respectively, by eccentrics 188. An eccentric 189 is also provided, having associated relation with the end of the socket opposite its pivot connection for adjustment` purposes. An adjusting screw 19t) is provided having operative connection with the eccentric 188 so that the operator can rotate the eccentric to vary the pivot axis of the socket 187 for proper pressure contact of the distributor roller 44 with respect to the ink drum 27. An adjusting screw 191 is also provided having operative Contact with the eccentric 189. By rotation of the eccentric 189 the contact of the distributor roller with the vibrating roller 45 can be adjusted. It is not believed necessary to describe the structural details of the adjusting screws 1% and 191, since their mode of operation and purpose will be understood las the description proceeds.

rihe shaft of the distributing roller 46 is journalled by the spaced swing plates SS in a similar manner. lt will be observed from FIGURE 1 that sockets 172 are pivoted to the respective side plates by eccentrics 193 and that the opposite end of each socket has operative relation with an eccentric 194.

Adjusting screws for the

eccentrics

193 and 194 are provided, and accordingly it is possible to adjust the Contact relation of the distributor roller 46 with the vibrating roller 45, and also with the vibrating roller 47.

Roller 51 is not driven, although the same is vibrated, as will be presently described. The shaft of this roller is journalled by sockets 195' which are carried by the front brackets 61, and each socket includes an eccentric 196, the position of which can be rotatively adjusted by the screw 197.

The journalling structure for the vibrating roller 47 was described in connection with the planetary gear arrangement shown in FIGURE 15. The said vibrating roller has contact with both form inking rollers 48 and 5G, and the sockets 19S and 26) for the form inking rollers, respectively, are pivoted at locations relatively adjacent the shaft 76 of the vibrating roller 47. Numeral 291 indicates the pivot axis for bracket 198, whereas numeral 2:12 indicates the pivot axis for bracket 260. Each pivot axis includes an adjustable eccentric, the adjustment of which can be eiected by the screws such as 2?'3 and 294. As regards bracket 198, the end opposite pivot axis 201 has operative relation with an adjustable eccentric 205 and a gib plate 266 is suitably fastened to each bracket 61 for guiding this adjustable end of the socket 198. The socket Zitti is also operatively associated with a second eccentric 207 and the adjusting screws for said eccentrics 205 and 21W are similar to those provided in the rear brackets 62 for the form inking rollers S3 and 54, as shown in detail in FIG- URE 6. As regards each form roller 48 and Si), it will be understood that the same can be adjusted with respect to the vibrating roller 47 and also with respect to its pressure contact with the form on the plate cylinder. The oscillator roller 52 has contact with both of the form inking rollers Si? and 53, and the shaft 20S of said oscillator roller is journalled by the U-shaped members 2119 carried by the rear swing plates. The roller 52 is rotated through its frictional contact with the form inking rollers. However, the roller is preferably vibrated, although the lmeans for effecting this action will not be described as it forms no part of the present invention.

The vibrating roller 55, the form inking rollers S3 and 54, and the roller 55 are each supported by socket structure carried by the rear brackets 62. The journalling structure for the vibrator roller 55 including its shaft 73 has been described in connection with the planetary gear arrangement of FlGURE l5. In connection with roller 56, the socket structure for journalling the saine is similar to that provided for roller 51. The shaft for the roller 56 is journalled by the sockets 210, and the eccentric 211 is provided for adjustment purposes. Accordingly the rotative position of the eccentric can be varied by actuation of the threaded adjustment screw 212. The

form inking rollers

53 and 54 are carried by

sockets

214 and 215, respectively, and which are pivotally supported by means of eccentrics at the pivot axes 216 and 217 located relatively adjacent the shaft 7S for the vibrating roller 55. The jonrnalling structure is similar in all respects to that provided for the form rollers 48 and 563, and includes a second adjustable eccentric 219 for socket 215 having associated relation with the end of the socket generally opposite its pivot axis 217. A gib plate 220 is xed to the brackets respectively for guiding this end of the sockets 215'. A second eccentric 21S is likewise provided for the socket 214 and the adjusting screws for all the eccentrics carried by the rear brackets are best illustrated in FIGURES 6 and 7 which structure will now be described. The arrangement of the eccentrics for the socket 214 will be understood by reference to FIGURE 7 which shows the sock-et as located in front of the bracket 62 but having an arm 221 xed at 222 to the socket and which is located in back of the bracket. As regards the two eccentrics for socket 214, the pivot eccentric 216 is mounted in the socket whereas the second eccentric 218 is mounted in the arm at the left end thereof. The bracket carries the adjusting screws 223 and 224 which are formed to provide the worm gears 225 and 226 at their respective ends. The worm 225 meshes with the pinion for the eccentric 215 and worm 226 meshes with the pinion for the eccentric 21S. Similar adjusting screws 227 and 22S are provided for the socket 215 and each screw is formed with a worm gear at its inserted end as at 23? and 231. The Worm 23u has meshing relation with the pinion for the pivot eccentric 217 and worm 231 meshesV with the pinion for the eccentric 219.

Manual oscillation of the swing plates In `order to space the form inking -rollers from the plate cylinder asshown in FIGURE 23 to provide access to the plate cylinder, it is necessary to manually oscillate the swing plates, causing them to move in a separating direction. The trip shaft 125 as shown in FIGURE 12 rotatably carries an assembly consisting of a pair of spaced

collars

232 and 233 located relatively adjacent the side frames and =11 of the press and which are connected and maintained in spaced relation by the tubular connecting member 234. Circular anges provided on the collars and at the ends of the member respectively are secured by screws 235, thereby releasably connecting the member to the collars at its respective ends. Each collar has formed integral therewith a gear such as 236 for

collar

232, and 237 for collar 233. Also, each collar carries a roller 23S and 239, respectively. The

gears

236 and 237 are aligned with the front swing plates andthe gears Y have meshing relation with the gear teeth 24d formed on the segment 241 provided vat the upper end of each of the front swing plates. The meshing relation which the gears have with the gear teeth of the swing plates is best shown in FIGURE 4. The

rollers

238 and 239 are aligned with the extension 168 provided by the rear swing plates, and the rollers are adapted to contact the rear surface of the extensions for which purpose each extension is especially shaped having an indentation 242 formed therein.

Rotation of the assembly including the spaced

collars

232 and 233 and the connecting tubular member 234 is effected by the worm gear 243, FIGURES 12 and 1.3. The worm gear is suitably fixed to the shaft 244 and which is journalled in the bracket 245, suitably secured at 246 to the side frame 11 of the press. The worm gear 243 has meshing relation with gear teeth 247 formed on the periphery of the collar 233, and thus rotation of the worm gear 243 will produce similar rotation of the assembly. The shaft 244 has a squared end 248, and when the operator desires to rotate the assembly it is only necessary to engage the squared end with the proper tool and rotate the worrn gear. It will be understood that such rotation of the assembly will roate the

gears

236 and 237, and since they mesh with the teeth 240' on the front swing plates the said swing plates can be oscillated in a Vcounterclocliwise direction, FIGURE 4, to space the form inking rollers 48 and 5t) from the plate cylinder for access to `said cylinder. Simultaneously with the said oscillating movement of the front swing plates, the rear swing plates are oscillated in a separating direction by coaction of the

rollers

238 and 239 with the extensions 168. The elevated position of the

form rollers

53 and 54 for a maximum `spacing from the plate cylinder as shown in FIGURE 4 is achieved when the

rollers

238 and 239 reach the indentation 242 formed in the rear surface of the extensions 168. n

Return oscillating movement of the swing plates is effected by reversing the direction of rotation of the worm gear 243. It will be also understood that the shaft 244 for the worm gear is free to move to a limited extent in an axial direction within the bracket 245. This is necessary in order to permit tripping movement `of the front swing plates. Since the said plates ihave a geared relation with the assembly, tripping movement of the swing plates will produce some rotation of the assembly, although to a minor extent. Such rotation is thus provided for by mounting the worm wear gear 243 in a manner permitting limited axial movement.

Vibrating structure vCertain of the rollers of the inking mechanism are vi- :brated in addition to being gear driven, such as the

rollers

45, 47 and 55, whereas other rollers such as 51 and 56 are vibrated only. The invention provides wobble plate mechanism 'for vibrating the rollers and which is shown in FIGURES 16, 17, 18 and '19. The swing plates have been previously described as mounted for oscillating movement on stud shafts 63 extending inwardly of each side Iframe and providing journalling portions 64 on which the swing plates are mounted. The exterior extending portion 65 of the stud shaft for the press side frame 10 journals a housing or hub member 25) by means of ball bearing races as shown in FIGURE 17, and the gear wheel 22 -is suitably xed to said housing as is also the ductor roller cam `21 and the elliptical cam 128. The gear wheel 22 is mounted on the housing 250 approximately centrally considering the length of the housing. Within the gear and on respective diametrical sides, the housing is provided vwith openings designated by

numerals

252 and 253. The collar 254 is located on the inner end of the hub 250 and the collar provides a mounting for the wobble plate 255 said plate and collar being pivotally supported on the housingby means of the pivot pins 256 extending through the collar'and intol the housing and having diametrical alignment with each other. This inner wobble plate 255 has contact with grooved pulleys V'257, 258 and 259, the pulley 25-'7 being xed to shaft 185 journalling the gear driven vibrating roller 45, the pulley 258 being fixed to shaft 76 journalling the gear driven vibrating roller 47, and pulley 259 being xed to shaft 7=8 vjournalling the -gear driven vibrating roller 55. By reason of the' pins 256,the wobble plate 255 can be angularly positioned with respect to the hub 250 and the angular positioning is effected and maintained by an arm 260 extending from the collar 254 through opening 252. Thev extending end of the arm 260 is bifurcated and each part thus formed has a threaded

set screw

261 and 262, respectively. 'fBy placing a pointed instrument inthe openings formed in the periphery of each set screw the Same can be rotatedand by reason of its'threaded mounting the set screw can be adjusted inwardly or outwardly of its arm 260 for engagement with aside wall of opening 252. The angular positioning of the wobble plate 255 is thus determined by the adjustment given to the

respective set screws

261 and 262,l and the same accordingly determines the reciprocating action imparted to the respective rollers having operative contact with the wobble plate through the grooved pulleys on their shafts.

The outer wobble plate 263 has engagement with a pair of grooved

pulleys

264 and 265, the former being extends through theopening 253 and-its extending end is bifurcated with each portion receiving a threaded set screw such as 271 and 272, FIGURE 1-9. The set screws can be rotated for. securing the desired angular positioning of the plate 263. When this is -accomplished the set screws will contact the walls of opening 253, thus maintaining the wobble plate in the desired angular position. As wobble plate 263 rotates, it-.will produce reciprocating movement of

shafts

266 and 267, which journal the vibrating

rollers

51 and 56.

Manual tripping means The

form inking rollers

43, 50, 53 and 54 are tripped automatically in the manner as described to lift the rollers from contact with the form on the plate cylinder in the event a sheet is not fed to the printing couple of the press. Such tripping of the form rollerstakes place together with a tripping of the plate cylinder and involves the structure shown in FIGURE 8. Rotation of the trip shaft 125 for at least forty-tive degrees produces rotation of the gear 144 and the cams 165. The operative connections from gear 144 produces rotation of the eccentrics 15S to elevate the front swing plates. The rear swing plates are elevated by a high point on the cams 165 contacting the rollers 176 carried by the extensions 168. One major advantage of this tripping action resides in the fact that the front form inking rollers, namely 43 and StB carried by the front swing plates 58 are lifted lirst and following this action the rear form inking rollers 53 and 5ft! carried by the rear swing plates o@ are lifted. In returning the form inking rollers into contact with the form on the piate cylinder, the same sequence is followed. In other words, the front inking rollers will be returned first followed by the rear inking rollers. A

In accordance with the invention manual means for tripping the form inking rollers is provided and which is uniquely associated with the automatic tripping mechanism so that the two are not only independently operable, but in addition the operation of either one does not interefere with the other. Referring to FIGURE l2 it will be observed that the end of trip shaft 125 extending beyond side frame 1o has rotatably mounted thereon the hub portion 272 to which is fixed the depending handle 275. The hub portion 274i is held on trip shaft 125 being confined between the ratchet 276 keyed to the shaft and the end plate 277 xed to the end of the trip shaft by the screw 273. The hub portion 274 carries the pin 2S@ which in turn provides a pivot axis for the pawl 281. The handle 275 is located between spaced stops 222 so that actuation of the handle is limited to forty-tive degrees of rotation.

When it is desired to manually trip the form inking rollers from contact with the form on the plate cylinder 25, the operator rotates the trip shaft 125 by actuation of the handle 275. Such rotation of the shaft takes place by reason of pawl 281 having contact with the ratchet wheel 276. The pawl 231 is so oriented with respect to its ratchet Wheel that rotation in one direction only is imparted to the trip shaft 125 and which is in the same direction as that imparted to the trip shaft by the automatic tripping mechanism. Accordingly, the automatic means for tripping the form inking rollers and also the manual means etfects rotation of the trip shaft 125 to a predetermined extent, namely forty-five degrees, and successive tripping actions by the automatic means as well as manual actuation will rotate the trip shaft always in the same direction.

Locking means for automatic trip it is desirable at times to lock the automatic tripping mechanism in either an on inking position or in an oit inking position and the invention provides relatively simple means as shown in FIGURE 8 for accomplishing this objective. The locking rod 2&4 is carried by the side frame 16 of the press for longitudinal movement and which takes place with respect to the latch 285 carried by the press side frame. The latch 28S is adapted to coact with the

notches

256, 237 and 28S formed in the locking rod adjacent the handle 2%. The rear end'of the rod carries stops 291 and 292. The stops have a position on respective sides of the terminal end of arm 122 forming part of the bell crank 12% fixed to shaft 121. When the locking rod 2134 is positioned as shown in FIGURE 8 wherein the latch 285 coacts with the notch 288, it will be seen that stop 292 has contact with the terminal end of arm 122 and thus the bell crank 12d is so held as to maintain the ring 124 in contact with roller 11th. The

i pawl 132 is thus rendered inoperative. The form inking rollers are maintained in contact for inking the form on the plate cylinder and tripping cannot take place. This .locking of the bell crank 12@ preventing oscillating action of the bell crank by rod 117 is possible due to the llost motion connection 118. To lock the tripping mechaisinism in an o inking position the operator grasps the handle 2% and pushes the rod 234- inwardly towards the rightto cause the latch 23.5 to coact wth notch 236. This right hand movement of the locking rod will move stop 292 out of contact with the depending end of arm 122 but will move stop 291 into contact with the arm. Accordingly the arm and bell crank 12) will be so held as to position the ring 124 so that it does not contact the roller 14). With the roller 140 being so positioned, the pawl 132 is operative and rotation of the trip shaft 125 takes place for tripping the form inking rollers. The said rollers maintain a tripped position as long as the bell crank is held by the stop 291.

For automatic tripping as previously described, the locking rod 284 is positioned so that the latch 285 coacts with the notch 287. As a result the

stops

291 and 292 are located on respective sides of the terminal end of arm 122 and in spaced relation therewith so that the bell crank 12d is free to oscillate.

Disconnect means for ductor roller When the form inking rollers are tripped out of contact with the form on the plate cylinder, it is desirable to lock the ductor roller 14 against oscillation and hold the roller in contact with the ink drum 27. FIGURE 1 shows locking means for the ductor roller which is automatically rendered operative, when the form inking rollers are tripped, to prevent oscillating movement of the ductor roller and which in addition maintains the said ductor roller in contact with the ink drum. The structure essentially consists of a coupling member 294 pivotally supported on press frame 1G at 295 and which is resiliently urged in a counterclockwise direction by the coil spring 2%. The shaft 17 for the ductor roller provides a depending trip rod 297, the lower end of which is adapted to Contact the hook member 298 carried by the coupling bar. The trip rod 297 and the hook member 29S would normally have interconnecting relation due to the resilient action of coil spring 296. However, the coupling bar 294 is normally held depressed by the shaft of the roller 233 carried by the coll-ar 232 of the tubular assembly 234 which is mounted for independent rotation of the trip shaft 125. When the form inking rollers are in Contact with the form on the plate cylinder the collar 232 and thus roller 238 are positioned as shown in FIG- URE l. The shaft of the roller contacts the coupling bar holding the same in a depressed position, and thus the trip rod 297 is free to oscillate. Thus when the form rollers are in contact for inking purposes the ductor roller oscillates to transfer ink from the reservoir roller 13 to the ink drum 27. However, upon manual or automatic actuation of the tubular assembly 234 for oscillating the swing plates to lift the form inking rollers off the form on the plate cylinders, the roller 23S will be rotated clockwise. This action releases the roller shaft from contact with the coupling bar and the hook member 2% is thus caused to latch the end of trip rod 297 holding the trip rod against movement, and thus locking the oscillating arm 16 for the ductor roller also against movement. It will be observed that the locking of the trip rod 297 is such as to maintain the ductor roller 14 in contact with the ink drum. It is possible to hold and lock the roller 14 against oscillating movement since the lever 16 is resiliently ured by the coil spring 3i) in a direction to force the ductor roller into Contact with the ink drum. Oscillating movement in a direction towards the reservoir roller 13 takes place through the coil spring 26.

Distribution system of the z'nkz'ng arrangement In the present arrangement of inking rollers the ink is transferred from the reservoir roller through a plurality of intermediate rollers, all carried by the front swing plate and front bracket structure, to the form inking rollers and Si?. These rollers may be designated as the rst group of form inking rollers, considering the direction of rotation of the plate cylinder. From roller 50 some ink will be transferred to roller 53 with some ink being passed to roller 54 by way of the vibrating roller 5S. These latter rollers are carried by the rear bracket structure and the

form inking rollers

53 and 54 may be designated ,as the second group, considering the direction of rotation of the plate cylinder. Accordingly, the ink is distributed by the present arrangement of inking rollers in a characteristic manner in that the ink is supplied in a major proportion first of all to a rst group of rollers, namely-4S and 5t), and then in a very minor proportion to .a second group of rollers, namely 53 and 54. The essential utility of the second group of form inking rollers is to roll out the ink already applied to the plate. The system approximates the ideal and has produced printing highly satisfactory in quality since ghosting and streaking are substantially eliminated. Also, tests have shown that a greater improvement in printing is achieved when four form inking rollers are employed as herein described, as against two or even three such rollers. It is also desirable to have two vibrator contacts per form inking roller with Vonly one of the vibrating rollers being gear driven. This is achieved in the present arrangement as regards all four ofthe form inking rollers. As a result of this particular feature, it is possible to ladjust the form inking rollers to obtain the proper pressure on the plate cylinder and to also obtain the proper inking contact with the particular gear driven vibrating roller and with the particular friction driven vibrating roller.

It will be understood from the foregoing description that the rollers 48 and Si), and 53 and 54 will be automatically tripped from inking contact with the form on the plate cylinder in the event a sheet is not fed to the printing couple of the press. Similar tripping can be achieved manually by the operator and in a manner independently of the automatic tripping mechanism and without disturbing the same. In addition to the automatic and manual tripping of the form inking rollers the front swing plate and bracket structure and the rear swing plate and bracket structure can be oscillated by the operator to space the form rollers from the plate cylinder whereby to provide access to said cylinder. In all operations for effecting oscillating movement of the swing plate and bracket structures, it will be understood that the front swing plates and brackets are oscillated in directions opposite to the movement of the rear swing plates and brackets. Also, in these operations the trip shaft always rotates in the same direction and this includes the automatic as well as the manual tripping and manual actuation. Since the form rollers 4S and 50 supply most of the ink to the form on the plate cylinder with

rollers

53 and 54 merely rolling outthe applied ink, it Will be appreciated that a lifting of the first group of form rollers in advance of ,a lifting of the second group is desirable. This is accomplished by the present inking arrangement, since the eccentrics 158 are actuated to lift the front swing plate and bracket structure in advance of a lifting of the rear swing plate and bracket structure. The mechanism for lifting the rst group of form rollers and which is followed by a lifting action of a second group of form rollers, functions in a similar manner to rst return the first group for inking contact and which action is then followed by the second group.

Although the front and rear swing plates with their supported bracket structure are located and journalled within the side frames of the press, nevertheless it is possible by the present arrangement to not only drive the several Vibrating rollers, but to also effect reciprocating movement thereof through mechanism located exteriorly of the press side frames. Accordingly, driving of the vibrating rollers is accomplished by the planetary gear structure, whereas wobble plates devices are provided for effecting the reciprocating motion of the vibrating rollers. The

Vjournalling stud shafts for the front and rear swing plates incorporate an oil reservoir and lubricating means for the swing plates and wherein the reservoir is conveniently accessible for refilling. Also, as a result of the passageways in the swing plates, lubricating oil can be supplied to the bearings for the vibrating roller shafts '76 and 7S. An extension of these passageways can be formed in the front and rear brackets such as indicated by numeral 69, FIGURE 15, and thus the journalling eccentrics for the form rollers can also be continuously lubricated by oil supplied from the reservoir.

The invention is not to be limited to or by details of construction of the particular embodiment thereof illustrated by the drawings, as various other forms of the device will, of course, be apparent to those skilled in the art without departing from the spirit of the invention or the scope of the claims.

We claim:

1. In a printing press, the combination with spaced side frames, of a stud shaft extending inwardly of each frame, a front swing plate mounted on each stud shaft, a rear swing plate also mounted on each stud independently of the -front swing plates, a plate cylinder journalled by the side frames, inking mechanism for the plate cylinder including a plurality of rollers, certain of said rollers being supported by the spaced front swing plates, the remaining rollers being supported by the spacedV rear swing plates, and means operating automatically for eiecting oscillating movement of the front and rear swing plates in directions opposite to each other to lift certain of the rollers from contact with a form on the plate cylinder, said means including a trip shaft adapted to be rotated in one direction only for effecting movement of the front swing plates in advance of movement of the rear swing plates in both directions of oscillation to lift certain of said rollers from contact with the form on the plate cylinder prior to a lifting of the remaining of said rollers and to also return the said rollers to contact in the same sequence.

2. In a printing press, the combination with spaced side frames, of a stud shaft extending inwardly of each frame, a front swing plate mounted on each stud shaft, a rear swing plate also mounted on each stud shaft independently of the front swing plates, a plate cylinder journalled by the side frames, inking mechanism for the plate cylinder including a plurality of rollers, certain of said rollers being supported by the spaced front swing plates, the remaining rollers being supported by the spaced rear swing plates, means for effecting oscillating movement of the swing plates in a manner whereby the front swing plates have movement in directions opposite to the movement of the rear swing plates, said means including a trip shaft journalled by the press side frame, mechanism actuated by rotation of the trip shaft and having operative connection with the front swing plates for oscillating the platess when the trip shaft is rotated toa predetermined extent, and other mechanism operatively connecting the trip shaft with the rear swing plates for oscillating the plates when the trip shaft is rotated to the same predetermined extent, said trip shaft always having rotation in the same direction for oscillating the front and rear swing plates in both directions of movement.

:3. In a printing press, the combination with spaced side frames, of a stud shaft extending inwardly of each frame, a front swing plate mounted on each stud shaft, a rearswing plate also mounted on each stud shaft independently of the front swing plates, a pla-te cylinder journalled by the side frames, inking mechanism for the plate cylinder including a plurality of rollers, certain of said rollers being supported by the spaced front swing plates, the remaining rollers being supported by the spaced rear swing plates, means for effecting oscillating movement of the swing plates in a manner whereby the front swing plates have movement in directions opposite to the movement ofthe rear swing plates, said means including a trip shaft journalled by the press side frames, a gear iixed on said shaft, an eccentric mounted in each of the front swing plates, operative connections between the gear and the eccentrics, a thrust bar having such connected relation with each eccentric that with the thrust bars held against movement the eccentrics when rotated will effect oscillating movement of the front swing plates, a pair of cams also fixed on the trip shaft, and the rear swing plates each having an extension integral with the plate and having contact with one of said cams.

4. In a printing press, the combination wi-th spaced side frames, of a stud shaft extending inwardly of each frame, a front swing plate mounted on each stud shaft, a rear swing plate also mounted on each stud shaft independently of the front swing plates, a plate cylinder journalled by the side frames, inking mechanism for the plate cylinder including a plurality of rollers, certain of said rollers being supported by the spaced front swing plates, the remaining rollers being supported by the spaced rear swing plates, means for effecting oscillating movement of the swing plates in a manner whereby the front swing plates have movement in directions opposite to the movement of the rear swing plates, said means including a trip shaft journalled by the press side frame, mechanism actuated by rotation of the trip shaft and having operative connection with the front swing plates for oscillating the plates when the trip shaft is rotated, other mechanism operatively connecting the trip shaft with the rear swing plates for oscillating the plates when the trip shaft is rotated, means for rotating the trip shaft in the event a sheet is not fed to the plate cylinder, a tubular assembly mounted for independent rotation on the trip shaft, means operatively connecting the tubular assembly with the front and rear swing plates, respectively, and additional means for manually effecting rotation of the tubular assembly whereby rotation of the tubular assembly will also cause the front and rear swing plates to oscillate for providing access to the plate cylinder.

5. In a printing press, the combination with spaced side frames, of a printing couple including a plate and an impression cylinder journalled by the side frames, a stud shaft on each side frame, a front swing plate journalled on each stud shaft, a rear swing plate also journalled on each stud shaft independently of the front swing plates, inking mechanism for the plate cylinder including a first vibrating roller journalled for rotation by the front swing plates, a second vibrating roller journalled for rotation by the rear swing plates, a front bracket pivotally mounted on the shaft of the iirst vibrating roller adjacent each front plate, a pair of form rollers and an additional vibrating roller suppor-ted for rotation by the front brackets, a rear bracket pivotally mounted on the shaft of the second vibrating roller adjacent each rear swing plate, a pair of form rollers and a second additional vibrating roller supported for rotation by the rear brackets, said form rollers and Vibrating rollers being so arranged whereby at least one form roller of each pair has contact with two vibrating rollers, and means for effecting oscillating movement of the swing plates including a common actuator for oscillating the front and rear swing plates in opposite directions to thereby trip the form rollers off and on the plate cylinder.

6. A printing press as defined by claim 5, wherein the means for effecting oscillating movement of the swing plates includes trip mechanism operating automatically in the event a sheet is not fed to the printing couple,

" whereby to cause tripping of the form inking rollers from contact with a form on the plate cylinder, and said means also including other mechanism for manually actuating the trip mechanism, said trip mechanism and other mechanism being capable of operation independently of each other.

7. A printing press as defined by claim 5, wherein the means for effecting movement of the swing plates effects movement of the front swing plates in advance of movement of the rear swing plates in both directions of oscillation, whereby the form inking rollers journalled by the front brackets are lifted first from contact with a form on the plate cylinder followed by a lifting of the form inking rollers journalled by the rear brackets, and whereby the form inking rollers are returned to contact in the same sequence.

8. A printing press as defined by claim 5, wherein the means for effecting oscillating movement of the swing plates includes a trip shaft journalled by the press side frames, mechanism actuated by rotation of the trip shaft and having operative connection with the front swing plates for oscillating the plates when the trip shaft is rotated to a predetermined extent, and other mechanism operatively connecting the trip shaft with the rear swing plates for oscillating the plates when the trip shaft is rotated to the same predetermined extent, said trip shaft always having rotation in the same direction for oscillating the front and rear swing plates in both directions of movement.

9. A printing press as defined by claim 5, wherein the means for effecting oscillating movement of the Swing plates for tripping purposes includes a trip shaft journalled by the press side frames, a gear fixed on said shaft, an eccentric mounted in each of the front swing plates, operative connections between the gear and the eccentrics, a thrust bar having such connected relation with each eccentric that the front swing plates are oscillated when the eccentrics are rotated and the thrust bars held against movement, a pair of cams also iixed on the trip shaft, and the rear swing plates each having an extension integral with the plate and having contact with one of said cams.

10. In a printing press, the combination with spaced side frames, of a printing couple including a plate and an impression cylinder journalled by the side frames, a stud shaft fixed to and extending inwardly of each frame, a front swing plate journalled on each stud shaft, a rear swing plate also journalled on each stud shaft independently of the front swing plates, inking mechanism for the plate cylinder including a plurality of rollers, certain of said rollers being supported for rotation by the front swing plates including a vibrating roller and a pair of form inking rollers, the remaining rollers being supported for rotation by the rear swing plates and also including a vibrating roller and a pair of form inking rollers, means for effecting oscillating movement of the swing plates, the front swing plates having movement in directions opposite to the movement of the rear swing plates, a front bracket supported by each front swing plate on the axis of the vibrating roller for said plates, the pair of form inking rollers for the front swing plates being journalled by the said front brackets, a rear bracket supported by each rear swing plate on the axis of -the vibrating roller for said plates, the pair of form inking rollers for the rear swing plates being journalled by the said rear brackets, a shaft for each vibrating roller and which extends through its respective swing plates at its ends in journalling relation therewith and through slots in the press side frames at respective ends, a pinion gear on each shaft at one outside end thereof, and means for rotating the vibrating rollers comprising a planetary gear mounted for rotation on one of the stud shafts and loca-ted on the exterior side of its frame, said planetary gear having meshing relation with the pinion on each vibrating roller shaft.

11. In a printing press, the combination with spaced side frames, of a printing couple including a plate and an impression cylinder journalled by the side frames, a stud shaft fixed to and extending inwardly of each frame, a front swing plate journalled on each stud shaft, a rear swing plate also journalled on each stud shaft independently of the front swing plates, inking mechanism for the plate cylinder including a plurality of rollers, certain of said rollers being supported for rotation by the front swing plates including a vibrating roller and a pair of adsense l@ Y form Vinking rollers, the remaining rollers being supported for rotation by the rear swing plates and also including a vibrating roller and a pair of form inking rollers, means for effecting oscilla-ting movement of the swing plates, the front swing plates having movement in directions opposite to the movement of the rear swing plates, a front bracket ysupported by each front swing plate on the axis ofthe vibrating roller for said plates, the pair of form inking rollers for the front swing plates being journalled by the said front brackets, a rear bracket supported by each rear swing plate on the axis of the vibrating roller `for said plates, the pair of form inking rollers for the rear swing plates being journalled by the said rear brackets, a shaft for each vibrating roller and which extends through its respective swing plates at its ends in jour-nailing relation therewith and through slots in the press side frames at respective ends, a grooved pulley `er1-each shaft vat one outside end thereof, and means for reciprocating the vibrating rollers comprising a wobble plate mounted for rotation on one of the stud shafts and -located yon the exterior side of its frame, said wobble plate -having operative contact with the grooved pulley on each vibrating roller shaft.

12.. In a printing press, the combination with spaced side frames, of a stud shaft extending inwardly of each frame, a front swing plate mounted on each stud shaft, a rear swing-plate also mounted on each stud shaft independent-ly of the front swing plates, a plate cylinder journalled bythe side frames, inking mechanism for the plate cylinder including a plurality of rollers, certain of said rollers being'supported by the spaced front swing plates, the remaining rollers being supported by the spaced rear swing plates, means for effecting oscillating movement of the swing plates, the front swing plates vhaving movement in directions opposite to the movement of the rear swing plates, said means including a trip shaft journalled by the press side frames, a gear fixed on said shaft, an eccentric .mounted on each of the front swing plates, operative connections between the gear and the eccentrics, a thrust bar having such connected relation with each eccentric that with the thrust bars held against movement the eccentrics when rotated will effect oscillating movement of the front swing plates, a ring in encircling relation Iwith each journalled end of the plate cylinder and having a fixed coinciding relation with the bearers on the plate cylinder, each thrust bar having contact with a ring whereby the thrust bars are held against movement, a pair of cams also fixed on the trip shaft, and the rear swing plates each havin-g an extension integral with the plate and having contact with one of said cams, whereby rotation of the cams will oscillate the rear swing plates.

13. In a printing press, the combination with spaced side frames, of a printing couple including a plate cylinder journalled by the side frames, a stud shaft fixed to and extending inwardly of each frame, a front swing plate rotatable on each stud shaft, a rear swing plate also rotatable on each stud shaft independently of the front swing plates, inking mechanism for the plate cylinder including a pair of vibrating rollers and a plurality offorrn inking rollers, a shaft for each vibrating roller, .a bearing in each swing plate, the shaft for one vibrating roller extending throughthe bearings in the front swing plates and being journalled thereby, the shaft for the other vibrating roller extending through the bearings in the rear swing plates and being journalled thereby, a pair of front brackets supported by the shaft of the vibrating roller `journalled by the front swing plates and disposed inside and adjacent the respective front swing plates, a pair of rear brackets supported by the shaft of the vibrating roller journalled by the rear swing plates and disposed inside and adjacent the respective rear swing plates,'

Y Y Ztl 1A.. A printing press as defined by claim 13, additionally including means for oscillating kthe front swing plates and front brackets as a unit, other means for oscillating the rear swing plates and the rear brackets as a unit, the said oscillating movements of the front swing plates and front brackets taking place in directions opposite to the movement of the rear swing plates and rear brackets, a trip shaft common to said means and to said othermeans, and said trip shaft having rotation always in the same direction to effect said oscillating movements.

15. A printing press as defined by claim 13, wherein a pair of sockets are carried by each of the front and rear brackets for journalling a pair of form inking rollers respectively, and additionally including two eccentrics rotatably mounted in each bracket for supporting each socket, one eccentric for each socket providing a pivot axis for the socket and the other eccentric having an operative connection with the socket at a location spaced from the pivot axis, and manually actuated means rotatably mounted in each bracket for adjusting the rotative position of each eccentric mounted in the bracket.

16. A printing press as defined by claim 13, additionally including means for effecting oscillating movements of the front and rear swing plates, their respective brackets and the rollers journalled thereby as independent units, and wherein vthe oscillating movement of one unit is op- .posite to that of the other unit, a ring having encircling relation with each journalled end `of the plate cylinder and coinciding with the bearers for the plate cylinder, and meansfor controlling action of the rear brackets during the oscillating movements thereof, said means including similar devices encircling each ring and having contacting relation therewith.

17. A printing press as defined by claim '13, additionally including a pinion gear .on the shaft of each vibrating roller at one end thereof, and a planetary gear rotatably mounted on one of said stud'shafts, said planetary gear having meshing relation with the pinion gears.

18. A printing press as defined by vclaim `13, additionally including a .grooved pulley on the shaft of each vibrating roller at one end thereof, a wobble plate rotatably mounted on one of said stud shafts, said wobble plate having contacting relation with each grooved lpulley yto effect axial reciprocating movements of the vibrating rollers.

'19. A printing press as defined by claim 13, additionally including an arcuate shoe fixed to each front and rear bracket, and a ring 'having encircling relation with each journalled end of the plate cylinder and coinciding with the bearers for the `plate cylinder, the arcuate shoes for the front and rear brackets on respective sides having contact with one of said rings when the form inking rollers journalled by the brackets are in inking contact with the form on the yplate cylinder.

2d. In a rprinting press, the combination with spaced side frames, a plate cylinder journalled by theside frames, inking mechanism for the plate cylinder including a plurality of` vibrating rollers and form inking rollers, a stud shaft fixed to each press .side frame and extending inwardly of the frame, a pair of front swing plates each being rotatable on a stud shaft, a pair of Vrear swing plates each being rotatable on a stud shaft and adapted to have oscillating movement independently of the front plates, certain ofthe vibrating and form .inking rollers being supported by the front swing plates andthe remaining vibrating and form inking rollers vbeing supported by the rear swing plates, means for effecting oscillating movement of the front `swing plates to move its form s inking rollers to and from vcontact with the form on the 21 connection therewith that when the thrust bar is held against movement said rotation of the eccentrics will effect an elevating and a lowering of the front swing plates, and automatic means for rotating the trip shaft to said predetermined extent.

21. A printing press as defined by claim 20, additionally including means adapted to be manually actuated for rotating the trip shaft to said predetermined extent, both said manual and automatic means effecting rotation of the trip shaft in the same directions for all actuations thereof, and the said manual and automatic means operating independently of each other.

22. In a printing press, the combination with spaced side frames, a plate cylinder journalled by the side frames, inking mechanism for the plate cylinder including a plurality of vibrating rollers and form inking rollers, a stud shaft fixed to each press side frame and extending inwardly of the frame, a pair of front swing plates each being rotatable on a stud shaft, a pair of rear swing plates each being rotatable on a stud shaft and adapted to have oscillating movement independently of the front plates, certain of the vibrating and form inking rollers being supported by the front swing plates and the remaining vibrating and form inking rollers being supported by the rear swing plates, means for effecting oscillating movement of the rear swing plates to move its form inking rollers to and from contact with the form on the plate cylinder including a trip shaft journalled by the press side frames, a pair of cams fixed on the shaft, and each of sai-d rear swing plates having an extension adapted to contact one of said cams, whereby the rear swing plates are elevated and lowered as the cams are rotated upon rotation of the trip shaft, and means for imparting uni-directional movement to the trip shaft at required intervals.

23. In a printing press, the combination with spaced side frames, of a plate cylinder journalled by the side frames, a stud shaft fixed to each side frame and projecting from both sides of its frame, a pair of front swing plates rotatable on the stud shafts respectively and located within the side frames, a pair of rear swing plates also rotatably mounted on the stud shafts inwardly of the front swing plates and capable of oscillating movement independently of said plates, inking mechanism for the plate cylinder including a plurality of form inking rollers and a pair of vibrating rollers, a shaft for each vibrating roller, one of said shafts extending through the pair of front swing plates and through slots in the respective side frames whereby the shaft is journalled by the front swing plates, the shaft for the other vibrating roller extending through the pair of rear swing plates and through slots in the respective side frames whereby the other shaft is journalled by the rear swing plates, a bracket located inwardly and adjacent each front swing plate and being supported by the shaft journalled by the said plates, another bracket located inwardly and adjacent each rear swing plate and being supported by the shaft journalled by said plates, means carried by the pairs of brackets respectively for journalling the form inking rollers, other means for effecting oscillating movement of the swing plates, the brackets and the rollers supported thereby, each stud shaft having a passageway extending longitudinally of the stud shaft, -an oil reservoir located at the end of each shaft exteriorly of its side frame and communicating with the passageway, a pair of grooves formed in that end of each stud shaft journalling the front and rear swing plates, said grooves communicating with the passage whereby the journalling end of each stud shaft is continuously lubricated by being supplied with oil from its reservoir, a passageway in each of the swing plates extending from its journalling portion on the stud shaft to the journalling opening for its particular vibrating roller shaft, and said last mentioned passageways having communication with the said grooves to thereby also lubricate the bearings for the vibrating rollers.

24. In a printing press, the combination with spaced side frames, of a plate cylinder journalled by the side frames, a stud shaft fixed to each side frame and projecting from both sides of its frame, a pair of front swing plates rotatable on the stud shafts, respectively, and located within the side frames, a pair of rear swing plates also rotatably mounted on the stud shafts inwardly of the front swing plates and capable of oscillating movement independently of said plates, inking mechanism for the plate cylinder including a plurality of form inking rollers and a pair of vibrating rollers, a shaft for each vibrating roller, one of said shafts extending through the pair of front swing plates and through slots in the respective side frames whereby the shaft is journalled by the front swing plates, the shaft for the other vibrating roller extending through the pair of rear swing plates and through slots in the respective side frames whereby the other shaft is journalled by the rear swing plates, -a front bracket located inwardly and adjacent each front swing plate and being supported by the shaft journalled by the said plates, a rear bracket located inwardly and adjacent each rear swing plate and being supported by the shaft journalled by said plates, means carried by the pairs of front and rear brackets, respectively, for journalling the form inkng rollers, and other means for effecting oscillating movement of the front and rear swing plates each as an independent unit including the brackets and rollers supported thereby. i

25. A printing press as defined by claim 24 wherein the means for effecting oscillating movement of the front and rear swing plates and respective associated structure is adapted to be manually actuated, said means including a trip shaft journalled by the side frames of the press, a tubular assembly rotatable on the trip shaft, a pair of gears fixed to the trip shaft in spaced relation, each gear having meshing relation with a gear segment integral with a front swing plate, cam elements fixed to the trip shaft also in spaced relation, each cam element being adapted to have contact with an extension formed integral with a rear swing plate, and manual means for effecting rotation of the trip shaft whereby to cause rotation of said gears and cam elements.

26. A printing press as defined by claim 25 wherein the meshing relation between the gears and the gear segments produces initial oscillating movement of the front swing plates in yadvance of initial oscillating movement of the rear swing plates caused by contact of the cam elements with said extensions, and wherein the oscillating movement of the front swing plates in both directions is opposite to the oscillating movement of the rear swing plates.

27. A printing press as defined by claim 24 additionally including a pinion fixed on one end of each vibrating roller shaft exteriorly of the side frame, a driving gear rotatably mounted on the exterior projecting end of the stud shaft fixed to said side frame, and a planetary gear carried by said driving gear, said planetary gear having meshing relation with the pinions for rotating the vibrating rollers.

28. A printing press as defined by claim 24 additionally including a grooved pulley fixed on one end of each vibrating roller shaft exteriorly of the side frame, a hub member journalled for rotation on the exterior projecting end of the stud shaft fixed to said side frame, a wobble plate carried by the hub member `and adapted to have engaging relation with both grooved pulleys, whereby to effect axial reciprocating movement of the vibrating roller shafts, and means provided by the wobble plate and having associated relation with the hub member for adjusting the inclination of the wobble plate.

29. In -a printing press, the combination with spaced side frames, of a stud shaft fixed to each side frame and extending from both sides thereof, a pair of unitary front swing plates and brackets rotatable on the inside pro-

Claims

1. IN A PRINTING PRESS, THE COMBINATION WITH SPACED SIDE FRAMES, OF A STUD SHAFT EXTENDING INWARDLY OF EACH FRAME, A FRONT SWINNG PLATE MOUNTED ON EACH STUD SHAFT, A REAR SWING PLATE ALSO MOUNTED ON EACH STUD INDEPENDENTLY OF THE FRONT SWING PLATES, A PLATE CYLINDER JOURNALLED BY THE SIDE FRAMES, INKING MECHANISM FOR ATHE PLATE CYLINDER INCLUDING A PLURALITY OF ROLLERS, CERTAIN OF SAID ROLLERS BEING SUPPORTING BY THE SPACED FRONT SWING PLATES, THE REMAINING ROLLERS BEING SUPPORTED BY THE SPACED REAR SWING PLATES AND MEANS OPERATING AUTOMATICALLY FOR EFFECTING OSCILLATING MOVEMENT OF THE FRONT AND REAR SWING PLATES IN DIRECTIONS OPPOSITE TO EACH OTHER TO LIFT CERTAIN OF THE ROLLERS FROM CONTACT WITH A FORM ON THE PLATE CYLINDER, SAID MEANS IN-