US992475A

US992475A - Inking mechanism for printing machinery.

Info

Publication number: US992475A
Application number: US56461510A
Authority: US
Inventors: Howard M Barber
Original assignee: Individual
Current assignee: CB Cottrell and Sons Co
Priority date: 1910-06-02
Filing date: 1910-06-02
Publication date: 1911-05-16
Anticipated expiration: 1928-05-16

Description

APPLICATION FILED JUNE 2;11910.

Patented May 16, 1911.

2 SHEETS-SHEET 1.

H. M. BARBER.

INKING MECHANISM FOR PRINTING MACHINERY.

APPLICATION FILED JUNE 2, 1910.

Patented May 16, 1911.

SHEETS-SHEET 2.

F HOWARD m. BARBER, or sroivnvs'roiv, oonnnorrcur, assisivon r 0. B. corranizna sons COMPANY, or NEW roan,

N. Y. A GORPORATEON OF NEW JERSEY.

INKING MEGHANISM FOB PRINTING: MAGHINEEY.

Specification of Letters Patent.

Patented my 16 ram.

Application filed June 2, 1910. Serial No. 564,615.

I 1% all whom "it may concern:

Be it known that Ll-l'ownnn M. Banana,

- a citizen of the United States, and resident of which the following is a specification.

This invention relates to improvements in printing machinery and is more "particularly directed to improvements 1:; the inking mechanism therefor.

In inking mechanisms where the fountain roll is held stationaryduring the intervals between its intermittent rotary move.

-ments, there is a tendency on the part of the ink es eciall where ver Y heav ink is used.,'

to draw away from the fountainroll and thus interfere with the proper deposit of the ink upon the doctor roll. I have discovered that Shy imparting to the fountain roll a continuous movementwith a slow movement in the intervals between the more rapidmovements imparted to the fountain roll at the time the doctor roll is in engage- 'ment therewith, I am enabled to secure a uniform deposit of the ink upon the doctor, roll, the continuous movement of the fountain roll preventing this drawing away of the ink as hereinabovestateds The object of my invention is to provid mechanism for imparting this continuous slow movement and intermittent faster movement to the fountain roll, the mechanism being so arranged that the "device for driving the roll continuously may be disconn cted so as to permit the fountain roll to be driven intermittently with stops between its movements, or to dis contact the device for driving the fountain roll intermittently for permitting the continuous slow movement of the fountain roll. For instance, with certain qualities of ink it may be advisable to simply drive the fountain r'oll intermittently with stops between its movements, or it may be desirable where only a very light deposit of color is required, to drive the fountain roll continuously with a slow movement. 1

A further object is to provide means for lengthening or shortening the stops in the intermittent movement of the fountain roll. This invention is shown as applied to a multi-color printing press. A practical embodiment of my invention This clu is represented in the accompanying drawings in which,

Figure 1 represents in front elevation, with the intermediate portion broken away, so much of an inking mechanism and its operating parts as will give a "clear understanding of my invention. Fi 2 represents the same in top plan. Fig. firepresents the mechanism inside elevation with portions of the supporting frame shown in connection therewith. Fig. 3 is a detail view showing the pawl carrying lever with the means for imparting the intermittent movement swung to the limit of its rearward movement. Fig. I

at isa detail vertical section taken in the plane. of the line AA of Fig. 1, looking in the direction of the arrows. Fig. 5 is a detail longitudinal section through the-de vice for clutching the fountain roll shaft to and releasing it from the continuous feed device, and Fig. 6 is a transverse section through the same.

A suitable frame39 forms; a support for the ink fountain 4:6. The fountainrol-l is denoted by 128 and its shaftby 176, which shaft is mounted in suitable half bearings in the ends of the ink fountain 46 and the caps 177,118.

ltlanually operated means for rotating the fountain roll 1%, comprises a spur-gear 179 fixed to the shaft 176, which spur gear is engaged by a pinion 1830 fixed on a shaft 181 carrying a crank handle 182. A shaft 183 is mounted in suitable hearings in the side frame 39 in alinement with the fountain roll shaft 176, adjacent to one end thereof and a clutch member 184- is arranged to be moved into and outv of interlockingengagementwith the inner end of the shaft 183.

connection 185 at all times with sleeve 1.86 keyed to the fountain rollshaft 176. This clutch member l84t-has a sliding movement on the sleeve 186 sufficientto permit the clutch member 18 to be moved entirely out 1 of interlocking connection with. the end. of

the'shaft 183 when so desired. A manually. operated lever 187 is pivoted at 188 on the fountain frame 189, the inner end of which lever is provided with a shoe 190 located in a circumferential groove 191 in the clutch member 1841-. A spring 192tends to push the lever 18'? in a direction to disconnect the clutch member 184: from the shaft 183. A swinging latch 198 is arranged to drop into member 18% has a roller clutch its position to hold the lever 181 against the tension of the spring 192 -with the clutch member 184 in interlocking engagement with the shaft 183. The shaft 183 is provided at its outer end with a gear 141 which meshes 'with a worm 140 fixed to a diagonal shaft 139 mounted in suitable upper and lower bearings.194*,'195*, on the frame 39.- B-

tary movement is imparted to the shaft 139 r from the shaft 113 through the gears- The step by step movement is imparted to the fountain roll, 128 by the following device. A ratchet wheel 194 is' fixed to the fountain rollshaft 176. A pawl carrying lever 195 and a pawl operating lever 196 are keyed to the stud shaft 176*, the pawl 197* being pivoted to the lever 195 in position to travel along the ratchet wheel 194, when moved in one direction and to interlock with the ratchet wheel and move it and thereby the fountain roll, when moved in the opposite direction. A stop 198 is arranged to limit the rearward movement of the pawl 197,

which stop 198 is adjustably secured to the frame 39 by a pin and slot engagement 1.99,

200, therewith, a clamp screw'201 having an engagement with the pin- 199 for securing the stop 198 in its desired position. A'spring 202 engages the frame 39 and the pawl operating lever 196, which spring tends to hold the pawl 197 at the limit of its rearward movement. A rocking arm 203 is loosely mounted upon the stud shaft 176* and the free end of the arm 203 is oonnected'to a crank disk 204 on the cam shaft 122 by a connecting rod 205. This connecting rod 205 is adjustably secured to the crank disk 204 by a pin and slot connection 206, 107, a nut 208 being providedfor clamping the connecting rod 205in the desired position on the crank disk 204, so as to determine the throw'of the arm 203. This arm 203 is arranged to engage a lug 209 on the lever 196, for moving the levers 195,

196, and thereby thepawl 197 during a greater or lesser portion of the downward movement of the arm 203,'according to the position of the stop 198 and the adjustable connection of the rod 205 with the crank disk The' doctor roll 54 maybe alternately engaged with the ink transfer roll 58 and the fountain 1 roll 128 by the following-device; The doctor roll carrying lever comprises arms 210 fixed to the shaft 211, in which arms the doctorro'll is mounted. Other arms 212, 213 are fixed to the shaft 211 and are provided with studs or rollers 214, 215, ar-

ranged to be engaged by a cam 216 fixed on the cam shaft 122. A suitable spring 217 is interposed between a fixed abutment 218 on the frame 39 and a collar 219 on the rod 220 connected to the free end of an arm 221 fixed to the shaft 211 for holding the stud or roller 214 in engagement with the cam 216.

In'operation, if it 'is desired to drive the fountain roll continuously at a slow speed, the clutch member 184 is interlocked with ,the shaft 183 and the-pawl 197 is thrown back out of engagement with its ratchet wheel 194. If it is desired'to drive the fountain roll intermittently with periods'of rest between its movements, the pawl 197 is engaged with its ratchet wheel 194' and the clutch member 184 is disconnected from the -sha ft 183. If-it is desired to impart to the,

fountain -roll a combination of a slow continuous movement with an intermittent higher movement, the clutch. member 184 is interlocked with theishaft 183 and the pawl 197 is dropped into engagement with its ratchet wheel 194.

The roller clutch connection between the clutch member 184 and the sleeve 186 on the shaft 176, permits the shaft 176 to be moved more rapidly than the movement of the shaft 183 at the periods of the intermittent higher movement.

parted to the fountain roll may be provided for-by adjusting the stop 198 so as to engage the pawl lever at any desired point in the upward movement of'theroking' arm 203, the

balance of the movement of the arm being of no effect on the pawl lever." The movementof this rocking arm 203 can also be adjusted by properly positioningthe connecting rod 205 on the crank disk 204, as herein:

before described.

It is evidentthat various changes might beresorted to in the construction, form and ar-, rangement of the several parts without de-' parting from the spirit and scope of my in- The amount of eachrapid movementimevention; hence I do not wish to. limit myself g strictly to the structure herein set forth, but

\Vhat I claim is: 1. Aprinting press inking mechanism 1ncluding a fountain roll and means for rotating it continuously at different alternating ing the fountain roll intermittently at a higher, speed without disconnecting the means for continuously rotating the roll.

' 5. A printing press inking mechanism in cluding a fountain roll, means for rotating it at a continuous speed, independent means for rotating the 'fountain roll intermittently at a higher speed without disconnecting the means for continuously rotating the'roll, and

manually operated means for connecting and disconnectingthe fountain roll and the said means for continuously rotating the roll.

6. A printing press inking mechanism including a fountain roll, means for rotating it at a continuous speed, independent means for rotating the .fountain roll intermittently at a higher speed and means for connecting the fountain roll to and disconnecting itfrom either one or both of said rotating means.

7. A printing press inking mechanism including a fountam roll, means for rotating it ata continuous speed, independent means for rotating 'the fountain roll intermittently at a higher speed and manually operated means for connecting the fountain roll to.

' and disconnecting it from the first named means.

8. A printing press mechanism including a fountain roll, means for rotating it at a continuous speed, independent means for-rotating the fountain roll intermittently at a higher speed and means for adjusting the length of the intermittent movement steps. 9. A printing press inking mechanism in cluding a fountain roll and its shaft and means fot rotating said shaft at a continuous 5 speed comprismg a constantly rotating shaft,

a clutch member arranged to connect and disconnect the two shafts and a clutch connection between the'clutch member and the fountain roll shaft.

" 10. A printing press inking mechanism including a fountain roll and its shaft and means for rotating said shaft at a continuous speed comprising a constantly rotating shaft,

a clutch member arranged to connect and disconnect the two shafts, a clutch connection between the clutch member and the fountain roll shaft and independent means including a pawl and ratchet. for-rotating said fountain roll shaft intermittently at a higher speed.

11. A'printing press inking mechanism including a fountain roll and its shaft, a continuously rotating shaft and a clutch connection between the two and independent means for rotating said fountain roll shaft intertinuously rotating shaft and a' roller clutch connection between the two, and ndependent means for rotating said fountain roll shaft intermittently at a higher speed Without disconnecting the continuously rotating shaft and manually operated means for connecting and disconnecting the fountain roll shaft and continuously rotatin shaft. I

In testimony, that I claimthe foregoing as -my invention, I have signed my name in presence of two witnesses, this twenty-sixth day of May 1910. g i HOWARDM. BARBER.

. Witnesses:

F. GEORGE BARRY, (LS. SUNDGREN.