US1663049A - Ink-cleaning device for flat-bed cylinder printing presses - Google Patents

Description

1 March 20, 192s,

-B.;L HILL INKCLEANING DEVICE FOR FLAT BED CYLINDERPRINTING PRESSES \kiw.

Filed April 26. 1927 Patented Mar. 20, 1928.

noannman a". HILL, or one Mourns,- Iowa.

INK-CLEANING- DEVIGE FOR FLAT-IBEID CYLINDER PRINTING PRESSES.

Application filed April 26, 1927. Serial No. 186,690.

My invention relates to and consists in certain improvements in means for readily, quickly and easily removing ink from the fiat beds of cylinder printing presses of the kind illustrated and described in my comthe flat bed plate panion application for patent filed November- 22, 1926, Serial Number 150,023.

My object is to provide means whereby the ink cleaner may, when at one end of the flat bed stroke, and when immediately over the ink trough, be swung downwardly into the trough so that the sharp edge scraper at the outer end of the cleaner relatively high up above the part thereof which is usually covered by ink, and to thereby remove all of the ink from the cleaner blade, and to thereby prevent any of the inkv from said blade dripping upon. during its subsequent movement.

Another object is to provide improved means of simple, durable and inexpensive construction, whereby the operator can read-- ily, quickly and easily adjust the cleaner blade operating device to its position for operating as a cleaner or to an inoperative position.

My invention consists in the construction, arrangement and combination of the various parts of the device, whereby the objects contemplated are attained, as hereinafter fully set forth, pointed out in my claims, and illustrated in the accompanying drawings, in which: V

Figure 1 shows a vertical, central, longitudinal, sectional view of a portion of a flat bed cylinder printing press of ordinaryv construction, having my improvement applied thereto. I I

Figure 2 shows a detail, vertical, sectional view through one portion of the flat bed plate with the inktrough connected therewith. The position shown by solid lines of the ink cleaner is directly over the discharge end of the trough, and by dotted lines in position just ready to leave the top of the flat bed plate.

Figure 3- shows an'enlarged, detail, sec.-

tional'view through the central portion of the rod for connecting the cam with the lever that operates the cleaner blade.

Figure 4: shows a detail perspective view 7 illustrating tll6..mB&I1S Z EOI' lengthening or shortening the rod which connects the cam to the cleaner operatinglever. Y

trough may engage the more Figure ,5 shows an enlarged, detail, sec- Figure 6 shows a detail perspective view of a portion of the flat bed plate with'the ink-trough attached thereto.

.Referring to the accompanying drawings, I have used the reference numeral 10 to'indicate generally the frame of the printing press. Slidingly mounted upon this frame is a type form vbedll connected'withthe ink distributing plate 12'. The sliding movement is usually effected in presses of this kind'by means of a rack 13 applied to the form bed and ink distributing plate,

nating rotary motion is applied in the ordinary manner. At one end of the press there is usually provided an ink receptacle 15 in which there is mountedan ink distributing roller 16, which is rotated during the operation of the press.

In presses of this kind there is also usually provided an ink carrying ro1l17 mounted on a bell crank lever 18 connected to a rod 19 which in turn is reciprocated by a part of the operating mechanism of the printing press in any ordinary manner not specifically shown herein. This ink carrying roll 17 'moves from position in contact with the roll 1 a hard surfaced roller 21 contacting with the twosoft surfaced rollers of the group.

i In presses ofthis kind there is usually supplied aseries of form inkingrollers similar in character and arrangement withthe ink distributing rollers, the soft surfaced rollers being indicated by the numeral 22 and the contacting hard surfaced roller by the numeral.23, the soft surfaced rolls being in position to. be engaged at timesby the fiat ink distributing plate, and at other times to transmit the ink thereon to the type forms. a c p All of the parts previously described are of common construction and of themselves form no'part of my present invention, and have been herein illustrated and described and in. mesh with a cog wheel 14 to which an alter.-

to show the manner in which my invention is applied to an ordinary flat bed cylinder printing press.

y improvement comprises a rock shaft 24 mounted in suitable bearings-in the frame 10 above the ink distributing plate. Fixed to the shaft 24 is an upwardly extendedarm- 25 to which is attached a contractile coil spring 26, which is fixed at its other end'to a part of the frame. Extending downwardly from the shaft 24 is an arm 27 to which there is detachably fixed a cleaner 28; This cleaner extends transversely across the printing press the full Width of the ink distributin'g plate and is made of twometal plates with two'rubber strips between them. The

rubber strips project downwardly below the metal plates, and one is preferably longer than the other, as clearly shown at 29 in Figure 2. At one" end of the shaft24 is a downwardly extending lever 30, and pivoted to the lower end of the lever 30 is a rod member 31 ed to a second rod member 32,'whi'ch is provided at its'loweriend with a roller 33. This roller is designed to engage a cam 34 fixed to'a shaft 35, mounted in the frame 10 and rotated by mechanism connected with the ress and not shown.

For the'purpose of adjusting the rods 31 and 32 relative to'each other, and for securing them in adjusted position, I have pro vided thefollowing mechanism:

v Extended through the rod 31 are two bolts 36, which also extend through slots 37 in therod member 32, thus permitting the rod member 32 to slide longitudinally relative to the rod member 31. Rotatively mounted in the rod member'31 is a shaft 38 provided with acr'ank 39. This crank 39 has a 1101- low handle 10 in which is a. spring operated slide bolt 41-. Une' end" provided with a knob 42 by which the operator can readily grasp theslide bolt" and move it outwardly, The bar 31 has two openings 43 designed to receive the end of the slide bolt to thereby hold the crank 39' a half revolution, its spring bolt will then enter the] corresponding fopening' 4-3, and t huslo'cking the bar in its adjusted position. Whenithe bar is in one of its adjusted posit'ions, and during the rotation adjustably and slidably connectof the slide bolt is 32 longitudinally, and when the crank 39 has moved through of the cam 34, the cam will engage the roller 33 and move the bar, thereby causing the cleaner blade 28 to move from position above the plate 12 when the plate is moved to the right,as shown in Figure 1, and it will cause the cleaner to move downwardly into engagement with the plate- 1 2 whenthe latter is moving toward the left, as shown in Fig Mounted upon the outer end of the plate 12 is an ink' trough ind'i'ez'it'ed generally by the reference numeral 48. Its top is sub st'antiall'y flush with the 130p end of the plate 12, and isfo'rined with an upwardly and inwardly inclinedrelatively sharp blade 49.

Formed on the cam 34 is" asupplemental cam member 50, the purpose of' which is as plate 1 2" has moved to ward the left, as shown in Figure 1, to

follows: When the sitio'n shown" in Fig-urea, that about the" p is to say, when the end of the plate is di-" rectly under the cle'aner'2 8, then'thesupplef mental cam member 50 engages thero'ller 33, andswings the cleaner downwardly throu h an'arc until the cleaner standsinsubstantial ly upright position, as shown by solid lines in F igure' 2, at which-time the cleaner blade will be in engagement with the blade 49015 the ink trough; This willica'u'se" the flexible cleaner blade to enter d-eeplyin-tothe trou' h, and theblade49 will then engage theflexi 1e cleaner blade above the ointwherethunk-iscarried by the flexible 'cleaner'blade- Then during a furthermovement of theplate-1 2to the left, as shown in Figure 2, the ink wlll all be removed from the flexible cleaner blade and deposited in the trough; Heretofore in devices in which this extra cam- 50 has not been employemdt sometimeshap e ns that all of the ink is-not removed from the flexible cleaner'blade by the blade 49,- and p of the plate 12,- and' its outer end stands spaced from. the" hence during the other movements of the plate 12,- the ink will drip upbeat; but; with my improvement and lay-causing the flexible cleaner blade tomovethrough an are down-=- wardly has the" range, this di-fllcul'ty iswholly obviated. I

I claim as my invention z 1. The combination with a" rinting press having ink distributing plate,-means form'oving'ths cleaner intoengagement with the fiat'ink distributing plate during the movement of said plate'in onedireotion and elevatin'g' said cleaner out of engagement withthesaidink distributing plate du'rin' 'the movement of the latter in the'op'posite directions; trough shaped ink receptacle attached to one end a flat ink'd ietributing plate and a" series of ink distributing and form inking" rollers, of a' flexible cleaner above the fiatof the ink distributing plate inipo's'i'tion to receive ink scraped" from the said "plate and of such size asto pe'rmit-the fiexible cleaner to move downwardly into the trough after the end of the ink distributing plate passes the cleaner, the side of the trough opposite from the adjacent edge of the ink distributing plate being formed into a blade to engage the side of the cleaner and remove ink therefrom and discharge it into the trough,

and means for causing the flexible cleaner to swing downwardly through an are as it passes through the trough and to approach a substantially vertical position when it engages the blade at the side of the trough opposite from the ink distributing plate.

2. The combination with a printing press having a flat ink distributing plate and a series of ink distributing and form inking rollers, of a cleaner above the flat ink distributing plate, and means for automatically moving the cleaner into engagement with the flat ink distributing plate during the movement of said plate in one direction and elevating said cleaner out of engagement with said ink distributing plate during the movement of the latter in the opposite direction, said means comprising a pivotal support for the cleaner, an arm fixed to the cleaner, a rod pivoted to the arm, a rotatable cam to engage said arm and cause it to be moved in unison with the action of the cam, said rod being formed of two parts slidingly connected with each other, means for securing the rod in either of two positions, one position permitting the cam to operate the rod and the other position holding the rod out of engagement with the cam, a supplemental cam member connected with said cam and arranged to engage said roller in such manner as to cause the said cleaner to swing downwardly through an are just after the ink distributing plate has passed beneath the cleaner, a trough fixed to the ink distributing plate through which the said cleaner may thus swing during its operation by the supplemental cam member, and a cleaner blade at the outer end of the ink distributing trough to engage said cleaner and remove the ink therefrom after the cleaner has passed through the trough.

3. The combination with a printing press having a fiat ink distributing plate and a series of ink distributing and form inking rollers, of a cleaner above the flat ink distributing plate, and means for automatically moving the cleaner into engagement with the fiat ink distributing plate during the movement of said plate in one direction and elevating said cleaner out of engagement with said ink distributing plate during the movement of the latter in the opposite direction, said means comprising a pivotal support for the cleaner, an arm fixed to the cleaner, a rod pivoted to the arm, a rotatable cam to engage said arm and cause it to be moved in unison with the action of the cam, said rod being formed of two parts slidingly connected with each other, and means for securing the rod in either of two positions, one position permitting the cam to operate the rod and the other position holding the rod out of engagement with the'cam, said means comprising a shaft rotatively mounted in one of the rod members, a lever on the shaft, a handle on the lever, a spring bolt connected with the handle, said rod having openings to receive the spring bolt in its different positions of movement, a crank on said shaft, a slide bar pivoted to the crank, said other bar member being formedwith a slot in which said slide bar is slidably mounted, for the purposes stated.

Des Moines, Iowa, April 1 1, 1927.

BOARDMAN J. HILL.

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