US775698A

US775698A - Inking mechanism.

Info

Publication number: US775698A
Application number: US20077904A
Authority: US
Inventors: Charles P Byrd
Original assignee: Individual
Current assignee: Individual
Priority date: 1904-03-30
Filing date: 1904-03-30
Publication date: 1904-11-22
Anticipated expiration: 1921-11-22

Description

N0.'7'75,698. l PATENTED Nov.22,19o4.

' G.P.BYRD.

INKING MECHANISM.

APPLIOATION FILED MAR. so. 1904.

N0 MODEL- 2 SHEETS-SHEET 1.

CECC,

lo n

@wwf/@0500 31400/44130@ PATENTED NOV. 22 1904.

C. P. BYRD.

INKING MEGHANISM.

APPLICATION FILED MAR. so, 1904.

2 SHEETS-SHEET 2.

No MODEL.

v[ gliiallllllllllI"l NiTnn STATES Patented November 22, 1904.

CHARLES P. BYRD, OF ATLANTA, GEORGIA.

INKING MECHANISIVI.

SPECIFICATION forming part of Letters Patent No. 775,698, dated November 22, 1904.

Application led March 30, 1904. Serial No. 200,779. (No model.)

v To a/ZZ whom, it nca/y concern:

Be it known that I, CHARLES P. BrRD, a citi- Zen of the United States, residing at Atlanta, in the county of Fulton, State of Georgia, have invented certain new and use ful Improvements in Inking Mechanism; and I do hereby declare the following' to be a full, clear, and exact description of the invention, such as will enable others 'skilled in the art to which it appertains to make and use the same.

' This invention relates to printing-presses, and more particularly to the ink-feeding mechanism thereof, and has for its object to provide a mechanism of this kind which will distribute the ink to the rollers when the press is in operation and which when the cylinder is tripped may be thrown out of gear to-stop the feed of ink, and thus prevent double inking of the rollers. In the drawings forming a portion of this specificatiomand in which like numerals of reference indicate similar parts in the several v views, Figure 1 is a top plan view of a portion of a press having the present invention applied thereto. Fig. 2 is a side elevation of Fig. 1. 1. Fig. 4 is a detail side elevation of the inkfeeding mechanism. Fig. 5 is an end view of Fig. 4.

Referring now to the drawings, there is.

shown a press 7, having an ink-reservoir 8 at one end, which contains the ink-feeding roller 9. This inking-roller, as shown, projects be yond the end of the reservoir 8 in the form of an axle or trunnion 10, and this trunnion has secured thereto a ratchet-wheel 11. The trunnion 10 extends beyond theiratchet-wheel and has loosely mounted thereon a disk 12, which has a cut-away portion 13 in its periphery and a notch 14 at a point diametrically opposite to the cut-away portion, as shown. One side of the notch 14 extends inwardly at right angles to the periphery of the disk 12, while the other side slants gradually from the periphery to the end of the straight side. The disk 12 is larger than the wheel 11, so that the teeth of the wheel are exposed through the slot 14 and cutaway portion 13.

To the outer end of the trunnion 10 there is attached a lever 15, which extends above and below the disk 12, and pivoted to the lever 15 is a pawl 16, which lies with its free end in Fig'. 3 is a section on line A B of Fig. V

the notch 14 and which is held in engagement with the teeth of the wheel 11 by a spring 17. The lower end of the lever 15 is connected by means of a pitman 18 to an eccentric 19 on the press, and when this eccentric is revolved the lever is caused to oscillate, and the pawl 16 successively engages the teeth of the wheel 11 to revolve 'the roller Qand feed the ink from the reservoir.

To the end of the press there is pivoted a hand-lever 20, carrying a roller 21, on which there rests a bar 22, having pivoted thereto a stop 23. Alever 24 is .pivoted to the end of the lever 22, and this lever is connected by means of a link 25 to the end of the stop 23, so that a toggle action is formed. A footplunger 26 is connected with an angular lever 27, pivoted to the frame of the press, and this lever is connected by means of a link 28 to the end of the lever 24. The stop 23 has an arcshaped portion 29, which has projecting from the ends thereof two

points

30 and 31, which are disposed for engagement with the cut-away portionof the disk 12. The projection 31 lies normally in engagement with one end of the cut-away portion 13 to prevent rotation of the disk 12 and hold the notch 14 in position to permit the pawl 16 to engage the teeth of the wheel 11. In the face of the disk 12 there are a pair of spaced recesses 32 and 32/, and projecting from the lever 15 is a spring-pressed lug 33. The lug 33 lies normally in engagement with the recess 32, so that the disk 12 is oscillated with the lever 15.

As ldescribed above, when the press is in operation the ink is fed from the reservoir by the roller 9, and in presses which utilize this system of inking considerable dificulty has been experienced in preventing double inking of the distributing-rollers and the type when the press is trippedf. e., when the cylinder is raised from the type and no impression is taken-the result being that when the next impression is made a super-abundance of ink is deposited on the paper and the lprint is ruined. Asstated above, the object of this invention is to prevent this double inking, which is accomplished in the following manner:

When the press is tripped, the foot-plunger 24 is depressed, which operates the toggle action described above, causing the pro- IOO jection 31 to become disengaged from the cutaway portion of the disk while engaging the projection 30 therewith. The engagement of the projection 3() with the end o1' the cut-away portion prevents the disk 12 from moving with the lever 15, so that the lug 33 leaves the recess 32 and enters the recess 32, so that the pawl 16 is held out of engagement with the teeth of the wheel 11 by the slanting face of the notch 14C. While the parts are in this position, movement of the disk 12 is limited by the projection 30, and the roller 9 remains stationary until the plunger 26 is released, and the projection 31 is again engaged with the cut-away portion 18. When this occurs, the limit of movement of the disk 12 is changed and the lug 33 is moved from the recess 32 back again to the recess 32', the pawl 16 coming again into engagement with the teeth of the wheel 11 to operate the roller 9. The foot-plunger 26 is also connected with the tripping mechanism of the press, so that the single operation of depressing the plunger both trips the press and cuts off the supply of ink.

When it isdesired to throw the above mechanism out of operative position in order to supply a large quantity of ink to the rollers through repeated inking while the press is tripped, the hand-lever 20 is lowered, which moves the bar 22 downwardly and disengages the stop 23 from the disk 12, after which the fountain is free to operate when the press is tripped.

Loosely disposed upon the shaft 10 is an inkregulating disk 34, which has projecting from its outer face an are-shaped lug 35, having a beveled end 36, and this disk is rotatable upon the shaft to bring the end 36 of the lug into the path of movement of the pawl 16, so that as this pawl is moved rearwardly it rides up over the lug and isl moved out of contact with the teeth of the wheel 11. The disk 311 may thus be adjusted to permit the pawl 16 to engage only the desired number of teeth, and thus the rotation of the roller 9 may be regulated to feed the desired quantity of ink to the inking-rollers. The disk 34 is provided with notches 37 in its periphery, with which may be engaged a dog 38 to hold the disk in the desired position.

In practice modications of the specific construction shown may be made, and any suitable materials and proportions may be used for the various parts without departing from the spirit of the invention."

What is claimed is- 1. An ink-feeding mechanism for printingpresses comprising a reservoir, a feed-roller mounted in the reservoir and having a trunnion extending outwardly thereof, a ratchetdisk mounted upon the trunnion, a lever pivoted upon the trunnion, means for oscillating the lever, a pawl pivoted to the lever and lying normally in engagement with the teeth of the ratchet-disk to rotate the latter when the lever is moved in one direction, a camdisk loosely mounted upon the trunnion between the lever and ratchet-disk, and arranged for engagement of its cam-face with the pawl to move the latter out of its normal position, said disk lying normally out of such position and having spaced recesses therein, a pin carried by the lever and lying normally in engagement with one of the recesses to hold the cam-disk in its normal position, and means for moving the lever with respect to the disk to engage its pin with the remaining recess to bring the cam-disk into engagement with the pawl to hold the latter out of engagement with the teeth of the ratchet-disk.

2. An ink-feeding mechanism for printingpresses comprising a reservoir, a feed-roller revolubly mounted in the reservoir, a ratchetdisk carried by the roller for rotation therewith, a pivotally-mounted lever, means for oscillating the lever, a pawl pivoted to the lever and lying normally in engagement with the teeth o1' the ratchet-disk to rotate the latter when the lever is moved in one direction, a cam-disk arranged for movement to bring its cam-face into engagement with the pawl to hold the pawl out of its normal position, said disk lying normally out of such position, said disk having spaced recesses therein, a pin carried by the lever and arranged for interchangeable engagement with the recesses, said disk lying in its normal position when the pin is in engagement with one of its recesses, and lying when the pin is engaged with its other recess with its cam-face in engagement with the pawl, and means for holding the disk against movement to permit of movement o1' the lever to bring its pin into interchangeable engagement with the recesses.

3. An ink-feeding mechanism for printingpresses comprising a reservoir, a feed-roller mounted in the reservoir, a ratchet-disk carried by the roller, a pivotally-mounted lever, means for oscillating the lever, a pawl carried by the lever and lying normally in engagement with the teeth of the ratchet-disk to rotate the latter when the lever is moved in one direction, a cam-disk arranged for movement to bring its cam-face into engagement with the pawl to hold the latter out o1' engagement IIO with the ratchet-disk, said cam-disk lying normally out of such position, means for oscillating the cam-disk with the lever when the disk is in its normal position, means for shifting the cam-disk with respect to the lever to bring its cam-face in engagement with the pawl, and means for oscillating the cam-disk when in its last-named position.

In testimony whereof I affix my signature in presence of two witnesses.

CHARLES P. BYRD.

Witnesses:

HUDsoN MOORE, E. E. PoMERoY.