US3769909A - Wet nip dampener - Google Patents

Wet nip dampener Download PDF

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Publication number
US3769909A
US3769909A US00122965A US12296571A US3769909A US 3769909 A US3769909 A US 3769909A US 00122965 A US00122965 A US 00122965A US 12296571 A US12296571 A US 12296571A US 3769909 A US3769909 A US 3769909A
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United States
Prior art keywords
roller
cylindrical surface
plate
dampening fluid
roller member
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00122965A
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English (en)
Inventor
R Fugman
L Jezuit
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Boeing North American Inc
Original Assignee
Rockwell International Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rockwell International Corp filed Critical Rockwell International Corp
Priority to US00122965A priority Critical patent/US3769909A/en
Priority to GB15372A priority patent/GB1342211A/en
Priority to CA131,658A priority patent/CA960082A/en
Priority to IT47761/72A priority patent/IT949656B/it
Priority to DE19722206498 priority patent/DE2206498A1/de
Priority to JP1689472A priority patent/JPS5438524B1/ja
Priority to CH228372A priority patent/CH549468A/xx
Priority to FR727206653A priority patent/FR2128370B1/fr
Priority to SE7202674A priority patent/SE383617B/xx
Application granted granted Critical
Publication of US3769909A publication Critical patent/US3769909A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F7/00—Rotary lithographic machines
    • B41F7/20—Details
    • B41F7/24—Damping devices
    • B41F7/26—Damping devices using transfer rollers

Definitions

  • ABSTRACT A dampening arrangement for a lithograph press which includes a fountain roller and a resilient water form roller arranged side by side with dams bridging the ends thereof to form a reservoir of water along the nip between the rollers.
  • the form roller is rotated at press speed and in such direction that a continuously reformed, uniform film of water is transferred directly from the nip to the surface of the printing plate.
  • Means are provided for varying the pressure between the rollers and for controlling the direction and speed of rotation of the fountain roller to control the thickness of the film.
  • the rollers are mounted on a subframe which is supported on horizontal ways, with an actuator for pressing the subframe against stops which are adjustable to control the squeeze" of the form roller against the printing plate.
  • a scraper blade is provided on the fountain roller above the nip to retain the water in the reservoir and prevent it from traveling around to the lower side of the nip when the fountain roller is rotated in the same direction as the form roller.
  • thewater form roller engages the plate just ahead of the ink form roller.
  • An auxiliary, self-oscillating roller preferably engages the presented top surface of the form roller to smooth out the casual film of ink picked up by thewater form roller.
  • the dampeners supply a constant film of water to the form dampening roller which, in turn, transfers the water at the same rate to the printing plate as it rolls over the surface thereof.
  • the form roller passes over the gap, however, no water is removed from its surface although it continues to receive a fresh supply from the reservoir. This results in a temporary flooding of the form roller until it reengages the plate and as a result an excess of water is transferred to the leading portion of the plate during each cycle of operation.
  • This produces a readily discernible gap streak" in the printed product, the width of which substantially coincides with the circumference of the form roller. The elimination of this condition is there fore highly desirable.
  • a dampening arrangement which consists of a minimum number of components, which is economical and highly compact, being formed simply of a resilient form roller and a hard surfaced fountain roller arranged side by side with a body of water dammed in the nip between them with independent means for adjusting the pressure between the two rollers and the pressure exerted by the form roller against the plate on the plate cylinder. It is a related object to provide a dampening arrangement which is mounted for retraction from the plate cylinder when feeding of water is not required, and which may be returned to a preestablished setting relative to the plate on the plate cylinder automatically without special attention by the operator.
  • FIG. 1 is a section taken transversely through the rollers of the invention structure.
  • FIG. 2 is a vertical section taken along line 2--2 in FIG. 1.
  • FIG. 3 is a fragmentary top view looking along the line 33 in FIG. 1.
  • FIG. 4 is a fragmentary perspective view showing one of the side frame members fitted into ways provided in the press frame and showing the means for bringing about roller-to-roller pressure adjustment.
  • FIG. 5 is a perspective view of the receptacle for the dam-supporting plate.
  • FIG. 6 is a perspective view of the dam-supporting plate and showing the manner in which it is received in the receptacle.
  • a lithograph press 10 having end frames 11 and 12 in which is journaled a conventional plate cylinder 13 mounting a lithographic printing plate 14 in the manner disclosed in U.S. Pat. No. 2,635,539 assigned to the assignee of this application.
  • the press includes the usual blanket cylinder and impression cylinder which do not, however, form a part of the present invention.
  • Ink is applied to the surface of the plate by means of a resiliently surfaced ink form roller 15 to which a film of ink is furnished by a suitable ink fountain via a set of transfer rollers, only the terminal one 16 of which is shown.
  • a resiliently surfaced water form roller for rolling engagement, at press speed, with the: surface of the plate on the plate cylinder together with a smooth, hard surfaced fountain roller which is driven independently by variable speed drive means.
  • the two rollers are pressed into engagement to form a nip which is dammed at its ends to form a V-shaped reservoirof water, with the form roller being rotated in such direction that, upon leaving the plate cylinder, the surface thereof passes into the water nip.
  • Means are also provided for adjusting the pressure between the two rollers and between the form roller and the plate cylinder.
  • the form roller indicated at 20 is resiliently surfaced with synthetic rubber or the like and mounted upon a shaft 21, the ends of which are journaled in bearings 22 (see FIG. 3).
  • a gear 23 on the plate cylinder meshes with the form roller gear 24.
  • interposed between the form roller gear and the shaft 21 is a friction type one way clutch 25.
  • the frictional nature of the clutch enables the form roller to rotate at precisely the same surface speed as the plate on the plate cylinder by reason of the friction between the form roller and the plate cylinder, which form roller speed may depart slightly from the theoretical speed resulting from the drive ratio of the gears, with the difference being accommodated by slight slippage at the clutch.
  • the clutch is of the one-way type so that the form roller is driven only when the plate cylinder is rotated in the forward direction, clockwise as viewed in FIG. 1.
  • the form roller remains stationary notwithstanding the fact that the gears 23, 24 remain in mesh.
  • One-way clutches with frictional engagement in the drive direction are well known to those skilled in the art.
  • a smooth, hardsurfaced fountain roller 30 Arranged horizontally alongside the form roller, and in slipping engagement with it, is a smooth, hardsurfaced fountain roller 30.
  • the fountain roller is preferably surfaced with a smoothly polished layer 31 of chromium, although other relatively hard materials may be used if desired.
  • This roller has a shaft 32 journaled in bearings 33 at each end. Keyed to one end of the shaft is a sprocket 34 about which is trained a drive chain 35 which is driven by a drive sprocket 36 mounted upon a shaft 37.
  • the shaft 37 is driven by a reversible gear motor 38, the speed of which is adjustable by means of a reversing type speed control 39.
  • water will be employed throughout in a generic sense to denote any liquid which is sufficiently grease-repellent as to perform the traditional role of wetting the nonprinting areas of the plate.
  • the water is, however, preferably modified by addition of alcohol or similar wetting agent so that the water tends to form in a continuous and evenly distributed film superimposed upon the casual film of ink which tends to form on the surface of the form roller 20 during operation of the press.
  • the water form roller 20 and fountain roller 30 are mounted upon a horizontally slidable subframe made up of side members which are supported in ways formed in brackets on the press frame, and dams are provided in the form of resiliently surfaced plates at the respective ends of the rollers which are dimensioned to span the nip to define a water nip reservoir, the plates being spaced inwardly from the subframe side members and in biased sealing engagement with the ends of the rollers.
  • a pair of subframe side members 51, 52 which extend horizontally in the direction of the plate cylinder.
  • the subframe members 51, 52 are slidably received in way members 53, 54 which are respectively mounted upon brackets 55, 56, respectively secured to the press side frames 11, 12.
  • the way members 53, 54 have cap strips 53a, 54a, respectively, which are secured in place by suitable screws 57.
  • the subframe members 51, 52 are each provided with an outboard bracket, the brackets being indicated at 51a, 52a (see 52a in FIG. 3).
  • Such brakets are preferably formed by a weldment.
  • each of the dams includes a rectangular plate 70, spaced inwardly from its associated subframe member and having a flat'body or pad of resilient sealing material 71 which is sufficiently large as to seal the nip, as shown in FIG. I, to a substantial depth.
  • the dam plates are fitted in receptacles 72 (see especially FIGS. 5 and 6) in vertical sliding engagement.
  • a pair of guide pins 73 engage each of the receptacles at diagonally opposite points, the pins 73 having a press fit with respect to the respective subframe side members 51, 52 and a sliding fit with respect to the receptacles so that the latter may be moved inwardly toward the presented ends of the rollers to effect a liquid seal.
  • screws 75 having lock nuts 76 are screwed into the members 51, 52 at the remaining diagonal points of the receptacles. The screws are screwed inwardly until the requisite sealing force is achieved, following which the adjustment is maintained by tightening the lock nuts 76. If any additional sealing pressure is required from time to time the lock nuts 76 may be loosened and the screws 75 turned inwardly a small amount following which the screws are again locked in place.
  • the pads 71 may be made of any suitable wearresisting, resilient material capable of being water lubricated, for example, felt.
  • ball detents 77 are used, with the balls being spring pressed into recesses 78 (again refer to FIGS. 5 and 6).
  • each of the members 51, 52 is provided with a fluid actuator and an adjustable bottoming stop with respect to the supporting way members 53, 54 which in turn are supported, by brackets 55, 56, to the press frame members.
  • the member 52 has an end plate 80 to which is secured the shaft 81 of a fluid actuator 82, the actuator being pinned to the press frame at 83.
  • the side member 51 has a similar end plate 80 and a similar actuator although not shown in the drawings.
  • the member 52 is formed with a tab 85 into which is threaded a bottoming screw 86 having a locking nut 87.
  • a bottoming screw 86 Arranged in the path of the screw is an upwardly extending tab or projection 88 which is formed integrally with the cap member 54a on the way member 54.
  • a similar bottoming adjustment is provided, in mirror image, at the other end of the rollers although not illustrated in these drawings.
  • the end plate 80 does not extend bridgingly between the side members 51, 52 which together form the subframe.
  • the side members are independently movable and the bottoming screws 86 are independently adjustable so as to provide the desired and constant width of flat along the entire length of the resilient form roller.
  • the gear motor 38 is preferably mounted on the bracket 56 which is secured to the press side from 12.
  • the chain 35 is engaged by a spring pressed idler 89 which is pivoted and swingable with respect to the press frame.
  • Means are additionally provided for independently adjusting the pressure which is exerted by the fountain roller 30 against the form roller 20.
  • the bearings 33 which journal the fountain roller shaft 32 are mounted in rectangular bearing blocks 90 which are movable in respective openings in the side members 51, 52 defined by horizontal way surfaces 91, 92 which extend parallel to one another (FIG. 4).
  • each is engaged by its own adjusting screw 93 threadedly received in the associated end plate 80 and provided with a lock nut 94.
  • the movable bearing blocks by their limited translatory movement, thus provide a means for independently adjusting the pressure exerted by the fountain roller, in a horizontal direction, against the form roller.
  • the form roller is fixedly journaled with respect to the side members 51, 52. Consequently, turning of the adjusting screws 93 does not in any way affect the position of the side members 51, 52 with respect to the press frame members.
  • the relative movement of the fountain roller 30 which does occur when the screws 92 are rotated is readily accommodated by the resilient dams.
  • the fountain roller 30 may be rotated at variable speeds, either clockwise, as viewed in FIG. 1, with the surface rotating in a direction away from the nip, or counterclockwise, with the surface rotating toward the nip.
  • the fountain roller is rotated in clockwise direction and by varying the speed thereof, the. film of water remaining on the surface of the form roller as it leaves the nip can be varied from substantially nil to the maximum amount that would be required under normal printing conditions. Should it be necessary under specific conditions to feed a greater amount of water, the fountain roller can be rotated in counterclockwise direction.
  • a controlled, substantially thicker film of water can be transferred.
  • a scraper blade is provided in running engagement with the presented upper surface of the fountain roller.
  • Such blade indicated at 100, (see FIG. 1) is mounted in a longitudinally extending blade holder 101 which is clamped to a longitudinally extending blade support bar 102 of circular cross section.
  • a series of clamping screws 103 are provided for holding the blade supporting member 101 in a desired angled position corresponding to a desired pressure between the blade and the surface of the fountain roller when the latter is in its working condition.
  • the longitudinally extending supporting bar 102 is secured to the subframe members 51, 52.
  • the scraper blade moves in unison therewith to maintain its setting relative to the fountain roller.
  • Continued engagement of the scraper blade with the fountain roller is essential to prevent water from being carried around to the lower side of the nip when the dampener is retracted because the drive gears remain engaged and the rollers continue to rotate.
  • Means are provided for constantly replenishing the water in the nip and for maintaining it at a constant level.
  • a small diameter fill pipe connected to a suitable source of water at low pressure penetrates one of the dam plates at openings 111, 112, whereas an overflow connection 113 penetrates the dam plate at the opposite end.
  • Flow through the inlet 110 is continuous and the level is maintained constant at a suitable depth level established by the overflow.
  • the connections 110, 113 may, if desired, be brought ofer the tops of the dam plates, so as to avoid any need for penetrating them provided that a small amount of suction is provided at the overflow connection 113.
  • any casual excess of water tends to drip into the pan 114 which is located directly under the fountain roller and which has a drain connection 115.
  • the water form roller 20 is intended to be water-receptive, being surfaced with resilient rubber or the like, it will, nevertheless, pick up casual ink from the plate 23, particularly during extended press runs. It is found that this ink film does not prevent the formation of a uniform film of water on the form roller 20, particuarly if the water includes a wetting agent or the like and provided that the ink film is maintained smoothly continuous. Consequently, in carrying out the invention, a self-oscillating roller 116 is provided which engages the upper surface of the water form roller.
  • the dampener assembly when operated, the dampener assembly is located relative to the plate cylinder so that the desired squeeze or flat is obtained at the nip between the form roller 20 and the plate cylinder 13 with the dampener in the operative position, accomplished by adjusting the screws 86. Thereafter, the fountain roller 30 is adjusted relative to the form roller by means of the screws 93 until the desired pressure is obtained.
  • the squeeze or flat should be enough to insure contact between the two rollers along their entire length such that water in the nip will not leak through, but it should not be so great as to apply an excessive torque load on the driving mechanism.
  • the form roller will rotate in clockwise direction through the reservoir to the nip with the fountain roller and thence directly to the plate cylinder.
  • the fountain roller will be rotated in clockwise direction and will serve to meter the film of water remaining on the form roller as it passes the nip.
  • the fountain roller tends to wipe the water off the form roller and its effect is dependent upon the speed at which it is rotated.
  • a relatively thick film of water will be transferred ans as the speed of the fountain roller is increased, its wiping effect will be increased until substantially no water is permitted to pass. Accordingly, a very precise and uniform film of water can be metered onto the surface of the form roller which can readily be controlled to establish a desired ink-water balance.
  • scraper blade used in the following claims refers to any blade or equivalent longitudinally extending element which bears against the fountain roller for the purpose of preventing water from being carried, on the surface of the fountain roller, to the lower side of the nip.
  • guide ways refers to any surfaces or members which serve to guide the subframe along a predetermined path of movement.
  • a plate cylinder mounted in the frame for rotation about the cylinder longitudinal axis, and having a cylindrical surface and a longitudinal recess in said cylinder cylindrical surface for receiving the attachment ends of a lithographic printing plate;
  • a lithographic printing plate supported by said cylinder cylindrical surface, having a plate cylindrical surface conprised of ink-receptive, printing surface areas in combination with dampening fluidreceptive, non-printing surface areas co-planar to said printing surface areas and rotated at a selected printing surface speed, and having attachment ends spaced apart by a gap width and secured to said plate cylinder at said plate cylinder longitudinal recess;
  • ink roller members having cylindrical surfaces engaging said lithographic printing plate cylindrical surface at circumferentially spaced-apart positions relative to said plate cylinder, and applying ink to said printing plate printing surface areas from ink films extending substantially thro'ughout the lengths of said ink roller member cylindrical surfaces;
  • a resiliently-surfaced dampening fluid roller member rotated in non-contacting relation to said ink roller members, having a cylindrical surface of different diameter than said plate cylindrical surface, and applying a film of dampening fluid to said lithographic printing plate non-printing surface areas in each revolution of said plate cylinder during printing and in advance of the application of films of ink to said printing plate printing surface areas by said ink roller members;
  • first drive means rotating said dampening fluid roller member in non-slipping, contacting relation to said lithographic printing plate cylindrical surface:
  • a non-resiliently surfaced fountain roller member positioned generally horizontally with respect to said dampening fluid roller member, and having a cylindrical surface engaging said dampening fluid roller member cylindrical surface in slipping relation;
  • second drive means rotating said fountain roller member relative to said dampening fluid roller member in a manner whereby said fountain roller member cylindrical surface has a speed in an opposite direction relative to said engaged dampening fluid roller member cylindrical surface substantially greater than said lithographic printing plate selected printing surface speed;
  • dampening fluid roller member cylindrical surface at zones registered with said printing plate attachemnt ends gap width, being rotated through said body of dampening fluid and afterwards engaged with circumferential portions of said fountain foller member cylindrical surface scraped by said blade means to meter dampening fluid applied to said lithographic printing plate cylincrical non-printing surface areas to a submicron film thickness.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
US00122965A 1971-03-10 1971-03-10 Wet nip dampener Expired - Lifetime US3769909A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
US00122965A US3769909A (en) 1971-03-10 1971-03-10 Wet nip dampener
GB15372A GB1342211A (en) 1971-03-10 1972-01-03 Lithographic printing press
CA131,658A CA960082A (en) 1971-03-10 1972-01-04 Wet nip dampener
IT47761/72A IT949656B (it) 1971-03-10 1972-01-15 Perfezionamento neli umettatori per macchine litografiche
DE19722206498 DE2206498A1 (de) 1971-03-10 1972-02-11 Feuchtwerk mit im Walzenspalt ange stauter Befeuchtungsflussigkeit
JP1689472A JPS5438524B1 (fr) 1971-03-10 1972-02-17
CH228372A CH549468A (de) 1971-03-10 1972-02-17 Lithographie-druckpresse.
FR727206653A FR2128370B1 (fr) 1971-03-10 1972-02-28
SE7202674A SE383617B (sv) 1971-03-10 1972-03-02 Anordning vid med stativ forsedd tryckpress

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00122965A US3769909A (en) 1971-03-10 1971-03-10 Wet nip dampener

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US3769909A true US3769909A (en) 1973-11-06

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Application Number Title Priority Date Filing Date
US00122965A Expired - Lifetime US3769909A (en) 1971-03-10 1971-03-10 Wet nip dampener

Country Status (9)

Country Link
US (1) US3769909A (fr)
JP (1) JPS5438524B1 (fr)
CA (1) CA960082A (fr)
CH (1) CH549468A (fr)
DE (1) DE2206498A1 (fr)
FR (1) FR2128370B1 (fr)
GB (1) GB1342211A (fr)
IT (1) IT949656B (fr)
SE (1) SE383617B (fr)

Cited By (25)

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US3991674A (en) * 1971-03-19 1976-11-16 Petri Nello J Dampening apparatus for a lithograph offset printing plate
US4041864A (en) * 1972-05-09 1977-08-16 Dahlgren Manufacturing Company Method and apparatus for inking printing plates
US4043265A (en) * 1976-01-29 1977-08-23 Molins Macine Company, Inc. Ink level warning system
US4088074A (en) * 1974-11-25 1978-05-09 Dahlgren Harold P Apparatus for inking printing plates
US4233898A (en) * 1978-06-23 1980-11-18 Dahlgren Manufacturing Company Reversible newspaper press
US4351236A (en) * 1978-10-21 1982-09-28 Heidelberger Druckmaschinen Aktiengesellschaft Combined dampening-inking unit for offset printing machines
US4362104A (en) * 1979-06-05 1982-12-07 Mitsubishi Jukogyo Kabushiki Kaisha Flexographic printing press
US4363288A (en) * 1980-04-16 1982-12-14 D.C.M. Device for applying a coating layer to a strip of continuously moving material
US4440081A (en) * 1981-11-21 1984-04-03 Heidelberger Druckmaschinen Dampening-inking unit for offset printing machines
US4455938A (en) * 1979-05-22 1984-06-26 Graph Tech Inc. Dampening apparatus for lithographic press
US4603633A (en) * 1984-07-28 1986-08-05 M.A.N.-Roland Druckmaschinen Aktiengesellschaft Arrangement for application of liquids, in particular coating unit for a printing press
US4981077A (en) * 1988-06-06 1991-01-01 Varn Products Company Dampening apparatus for lithographic press
US5101724A (en) * 1987-06-25 1992-04-07 Heidelberger Druckmaschinen Ag Dampening unit for an offset printing machine
EP0517462A1 (fr) * 1991-06-06 1992-12-09 BALDWIN GRAPHIC SYSTEMS, Inc. Système d'alimentation de liquide de mouillage
US5182989A (en) * 1989-05-03 1993-02-02 Heidelberg Druckmaschinen Ag Sealing device
ES2054572A2 (es) * 1992-05-06 1994-08-01 Imer S A Dispositivo para el control de la humectacion en maquinas impresoras offset.
US5492058A (en) * 1989-05-03 1996-02-20 Heidelberger Druckmaschinen Ag Sealing device for an offset printing machine
US5551338A (en) * 1995-05-01 1996-09-03 Varn Products Company, Inc. Drive disengaging device for an offset lithographic seal-type dampening system
US5694846A (en) * 1991-06-06 1997-12-09 Baldwin Graphics Systems, Inc. Fountain solution supply system
US5735204A (en) * 1993-08-11 1998-04-07 Hara; Akira Dampening water circulation system for offset press
US5778777A (en) * 1996-06-06 1998-07-14 Ryobi Ltd. Dampending device for a printing machine
US6347585B1 (en) * 1998-08-04 2002-02-19 Goss Graphic Systems, Inc. Variable gap stabilizer
US6675706B2 (en) * 2001-01-19 2004-01-13 Dean A. Barker Dampening assembly having air seal apparatus for sealing dampening solution
EP1440798A2 (fr) 2002-12-27 2004-07-28 Day International Inc. Dispositif de réglage de l'eau de mouillage
US20230234092A1 (en) * 2021-10-27 2023-07-27 Kompac Technologies, Llc System with sealing chamber

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Publication number Priority date Publication date Assignee Title
GB2082121B (en) * 1980-08-14 1984-11-28 Komori Printing Mach Water supply apparatus for printing press
DE3069766D1 (en) * 1980-09-10 1985-01-17 Varn Products Company Limited Dampening feed apparatus
IT1205429B (it) * 1981-12-15 1989-03-23 Luigi Ghisalberti Metodo e dispositivo di bagnatura nella stampa offset
US4518167A (en) * 1983-06-08 1985-05-21 A. B. Dick Company Sealing means
DE3722519C2 (de) * 1986-10-01 1998-03-19 Kba Planeta Ag Kombiniertes Feuchtwerk für Druckmaschinen
DE3813829A1 (de) * 1987-06-25 1989-01-05 Heidelberger Druckmasch Ag Feuchtwerk fuer eine offsetdruckmaschine
DE3813826A1 (de) * 1987-06-25 1989-01-05 Heidelberger Druckmasch Ag Feuchtwerk fuer eine offsetdruckmaschine
DE3813827A1 (de) * 1987-06-25 1989-01-05 Heidelberger Druckmasch Ag Feuchtwerk fuer eine offsetdruckmaschine
EP0345716A3 (fr) * 1988-06-06 1990-12-19 Varn Products Company, Inc. Dispositif de mouillage pour presse lithographique
GB2231001B (en) * 1989-05-03 1992-10-07 Heidelberger Druckmasch Ag Sealing arrangements for an offset printing press damping unit.
US5134935A (en) * 1989-10-12 1992-08-04 Yarn Products Company, Inc. Lithograhic dampener
CN102272047B (zh) 2009-02-04 2013-07-31 株式会社德山 多晶硅的制造方法

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US2385169A (en) * 1944-06-02 1945-09-18 Nat Lock Co Metal cabinet hinge
US2406057A (en) * 1944-11-30 1946-08-20 Minnesota & Ontario Paper Co Coating apparatus
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US2676563A (en) * 1949-02-05 1954-04-27 Champion Paper & Fibre Co Apparatus for coating paper
GB715278A (en) * 1950-09-04 1954-09-08 Roland Offsetmaschf Improvements in printing machines
US2857840A (en) * 1956-11-13 1958-10-28 Carl O Bachman Inking and watering mechanism for printing presses
US3094065A (en) * 1959-04-06 1963-06-18 Harris Intertype Corp Dampening mechanism for lithographic printing press
US3343484A (en) * 1964-12-16 1967-09-26 Harold P Dahlgren Lithographic dampener with skewed metering roller
US3404625A (en) * 1965-07-26 1968-10-08 Bemis Co Inc Dampening mechanism for rotary planographic printing presses
US3433155A (en) * 1965-09-13 1969-03-18 Harris Intertype Corp Mechanism for applying a coating to a plate
US3613575A (en) * 1968-05-27 1971-10-19 Kantor Press Kontrols Inc Oscillator roller for printing presses

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Publication number Priority date Publication date Assignee Title
US2049495A (en) * 1931-08-24 1936-08-04 Vogel Freuder Corp Printing apparatus
DE678543C (de) * 1937-10-06 1939-07-17 Carl Einar Larsen Verfahren und Vorrichtung zum Feuchten der Flachdruckformen einer Druckmaschine, namentlich beim Offsetdruck
US2385169A (en) * 1944-06-02 1945-09-18 Nat Lock Co Metal cabinet hinge
US2406057A (en) * 1944-11-30 1946-08-20 Minnesota & Ontario Paper Co Coating apparatus
US2614492A (en) * 1947-12-17 1952-10-21 Fred K H Levey Co Inc Method of and apparatus for printing
US2676563A (en) * 1949-02-05 1954-04-27 Champion Paper & Fibre Co Apparatus for coating paper
GB715278A (en) * 1950-09-04 1954-09-08 Roland Offsetmaschf Improvements in printing machines
US2857840A (en) * 1956-11-13 1958-10-28 Carl O Bachman Inking and watering mechanism for printing presses
US3094065A (en) * 1959-04-06 1963-06-18 Harris Intertype Corp Dampening mechanism for lithographic printing press
US3343484A (en) * 1964-12-16 1967-09-26 Harold P Dahlgren Lithographic dampener with skewed metering roller
US3404625A (en) * 1965-07-26 1968-10-08 Bemis Co Inc Dampening mechanism for rotary planographic printing presses
US3433155A (en) * 1965-09-13 1969-03-18 Harris Intertype Corp Mechanism for applying a coating to a plate
US3613575A (en) * 1968-05-27 1971-10-19 Kantor Press Kontrols Inc Oscillator roller for printing presses

Cited By (31)

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Also Published As

Publication number Publication date
FR2128370A1 (fr) 1972-10-20
CH549468A (de) 1974-05-31
CA960082A (en) 1974-12-31
JPS5438524B1 (fr) 1979-11-21
GB1342211A (en) 1974-01-03
SE383617B (sv) 1976-03-22
DE2206498A1 (de) 1972-09-21
IT949656B (it) 1973-06-11
FR2128370B1 (fr) 1973-06-29

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