US3292534A - Ink agitator - Google Patents

Ink agitator Download PDF

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Publication number
US3292534A
US3292534A US452608A US45260865A US3292534A US 3292534 A US3292534 A US 3292534A US 452608 A US452608 A US 452608A US 45260865 A US45260865 A US 45260865A US 3292534 A US3292534 A US 3292534A
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United States
Prior art keywords
shaft
carriage
rocking
rail
ink
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
US452608A
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English (en)
Inventor
Howard R Maschinot
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.)
PRINTING MACHINERY CO
Original Assignee
PRINTING MACHINERY CO
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 PRINTING MACHINERY CO filed Critical PRINTING MACHINERY CO
Priority to US452608A priority Critical patent/US3292534A/en
Application granted granted Critical
Publication of US3292534A publication Critical patent/US3292534A/en
Priority to BE705404D priority patent/BE705404A/xx
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
    • B41F31/00—Inking arrangements or devices
    • B41F31/02—Ducts, containers, supply or metering devices
    • B41F31/03—Ink agitators

Definitions

  • Ink agitators of various types have been devised and are in use. Some ink agitators have been of complicated construction having agitating means which present .a serious cleaning problem. It is an object of the invention to provide an ink agitating mechanism from which the agitator is readily disconnectible and is of a size and shape to permit easy and rapid cleaning in ink solvent contained in a bucket or the like.
  • a rail is set up along the rear edge of the ink fountain.
  • a threaded shaft is mounted parallel to the rail and a carriage element is movable along the rail.
  • the carriage element yhas means engaging the threaded shaft so that the carriage will #be moved along the length of the fountain when the shaft is rotated.
  • a small electric motor is mounted upon one end of the agitator device for driving the shaft. This motor may be reversible or may have reversible gearing so as to provide for a return movement of the carriage at the end of its traverse in one direction. In other instances a double threaded shaft is provided of such nature as to cause .a return movement of the carriage at the end of each stroke.
  • a rack member may be mounted on the rail.
  • the carriage is designed to support a rotating ink agitator member.
  • the ink agitator member is provided with a gear or train of gears, one of which meshes 'with the teeth of the rack.
  • the agitating portion of the ink agitator memher which extends into the ink in the fountain is usually a plain or fluted conical member.
  • the specic agitator member rotary or not, does not constitute a limitation herein.
  • the ink fountain is split by dividers or partitions so that inks of ⁇ different colors or other .characteristics may be placed separately in the divided compartments of the ink fountain.
  • ink :agitator means which can -be used in split fountain printlIt is an object of the invention to provide a mechanism for agitating the ink in split fountain printing where an agitator can be positioned in any of the compartments of .a divided ink fountain, and can be caused continuously to traverse the length of the fountain compartment, and return, irrespective of the actual length of the compartment.
  • FIG. 1 is a partial elevation, with certain sectionalized elements, o-f ⁇ a carriage mounted upon a rail, .and including agitator means.
  • FIG. 2 is a front elevational view of the carriage ⁇ assembly showing means for stopping the traverse of the carriage -in one direction and for beginning the return stroke.
  • FIG. 3 is a rear elevational View of the carriage and shaft.
  • FIG. 4 is a fragmentary elevational view of a doublethreaded shaft employed in the apparatus.
  • FIG. 5 is a cross sectional view of the threaded shaft taken along the section line 5 5 of FIG. 4, showing also the means for engaging the threads on the shaft.
  • FIG. 6 is a view partly in elevation and partly in section showing the mounting of the apparatus at one end of the ink fountain.
  • FIGURE 7 is a view partly in elevation and partly in section showing the mounting of the apparatus at that end of the ink fountain opposite the end illustrated in FIGURE 6.
  • FIG. 8 is a detailed view of the trip bar.
  • FIG. 9 is a view showing another form of motor mounting.
  • a rail 1 in the form of an ⁇ angle bar.
  • This har may be made in one piece but is preferably made of two pieces fastened together.
  • a rack 2 is permanently mounted to one of the legs of the rail 1.
  • a double threaded shaft 3 is mounted in bearings 4 and 4' at the end-s of the rail (seeFlG. 4), as later explained.
  • a carriage 5a is slidv.ably mounted on the rail, land au ink agitator element 6 is rotatively mounted on the carriage as will hereinafter be more fully described.
  • the carriage 5a has a lower portion 8 which is so shaped (-as shown in FIG. 1) 4as to allow room for the shaft 3.
  • a lower surface -9 of the carriage part 8 rides against the linside surface of one of the legs of the rail 1.
  • There is ⁇ an extension 10 on the lower part of the carriage which rides against the end portion of the rail 1 as shown; and this extension is provided with a releasable means for holding the carriage to the rail.
  • the means is a U-shaped member 11, the opstanding legs of which are pivoted to the extension 10 by means of a pin or pintle 12.
  • the attachment device has an extension 13 which lies beneath the under surface of the lower leg of the rail 1.
  • a wing nut 14 and a stud 14' having a portion engaged with the pintle and a threaded shank engaged by the wing nut. If the wing nut is loosened, the attachment means may be pivoted about the pin i12 to a position in 3 which the extension 13 no longer engages beneath the lower leg of the rail 1.
  • the lower portion 15 of the carriage has an angularly related part 16 which extends across and rides against the upper edge of the upper leg of the rail 1. This part of the carriage is cut away as at 17 to accommodate the teeth of the rack 2. It also has a downward extension 18 provided with another ⁇ attachment means 19, similar lto that hereinabove described.
  • the attachment means 19 has a lateral extension 20 engaging the under surface of the rack, and a Wing nut and stud arrangement 21. It will be understood that upon release of the attachment means 11 and 19 the carriage can be bodily removed in an upward direction from the rail 1.
  • the carriage has an upper part 22.
  • a gear 23 is mounted in a hollow in the carriage part 22 in such position that its teeth will mesh with the teeth of the rack 2.
  • the gear 23 is shown as mounted on a shaft 24, which is inserted or driven into a bottomed perforation in the carriage part 22.
  • a gear 26 is mounted in a hollow portion of the part 25 in such a position that its teeth will mesh with the teeth of the gear 23.
  • the gear 26 is nonrotatably mounted on a shaft 27 which extends entirely through the part 25, being mounted in bearings 28 therein.
  • the portion 25 is designed to be removable from the part 22, it is provided with a dovetailed base 29. This base engages in a groove 30 in the carriage part 25 as best shown in FIG. 2.
  • the groove 30 is dovetailed at the right hand side of that ligure but has a vertical wall at the opposite edge.
  • a spring-pressed wedge shaped element 31 is provided within the groove and is controlled by a pair of wing screws 32. It will be clear from FIG. 2 that when the wing screws are tightened, the portion 25 will be xedly held to the carriage 22, but will be removable therefrom as desired.
  • a knurled element 33 is attached to one end of the shaft 27 to facilitate positioning of the shaft in such a Way that the teeth of its gear 26 will mesh with the teeth of the gear 23.
  • An ink agitating cone or other agitating means 6a is attached to the other end of the shaft 27.
  • the agitator 6a may be a cone shaped element. The sides of this cone shaped element are smooth or uted as may be desired. It will further be understood that the travel of the carriage along kthe rail will result in the rotation of the shaft 27 and its ink agitating member 6a, the shaft being driven from the rack 2 through gears 23 and 26.
  • the lower carriage part 15 is perforated to receive a shaft 34 disposed at a right angle to the double threaded shaft 3.
  • the shaft 34 carries on one end a member 35 to engage the threads of the threaded shaft 3.
  • the shape of the member 35 will be evident from FIGS. 4 and 5. Being somewhat longer than the diameter of the shaft 34 the member 35 engages in an enlargement 36 of the hole in the lower housing part and prevents axial movement of the shaft in one direction.
  • the other end of the shaft is slotted to receive a member 37 for rocking the shaft. This member prevents axial movement of the shaft in the opposite direction.
  • the extent of the rocking is determined by set screws 38 and 39 threaded in ears 40 and 41 on the lower housing part 15.
  • the shape of the member 35 is such that upon the rocking of the shaft 34 it can engage either the right hand or the left hand thread of the shaft; but a change of engagement can only be effected at that part of the shaft where the right hand and left hand threads merge, as will best be seen in FIG. 4.
  • a bar 42 is slidably mounted in a groove in the lower housing part 15.
  • a hole in the bar is connected to a boss on the end of the member 37 by means of a spring 43.
  • End portions of the bar 42 are extended as cylindrical members 44 and are bored to receive plungers 45 and 46 which are urged outwardly by springs 47 and 48.
  • the sliding bar 42 is detailed in FIG. 8.
  • the bar body is counterbored as at 45a and 46a to receive the Shanks of the pin members 45 and 46.
  • the shanks are provided with milled flats 45b and 46b, the pins 64 and 65 have press fits in the bar 42 and act to prevent complete withdrawal of the pin members 45 and 46.
  • the springs are again indicated at 47 and 48.
  • the spring 43 acts also to retain the bar member 42 in place in the i groove in the carriage member 22, but it is preferable to provide clips 42a and 42b on the carriage (see FIG. 3) as additional holding means.
  • trip or reversing means along the rail 1.
  • These trip means are in the nature of clamps (see FIGS.
  • the body has a fini like element 50 to engage the teeth of the rack 2 and an abutment portion 51 lying in the path of the pins 45 t spring 43 urges the member 37 in a direction to rock the shaft 34.
  • the shaft 34 will remain stationary, however, until the member 35 on its lower end reaches an intersection between the right and left hand threads on i At this point the spring 43 aforesaid will I bring about a rocking of the shaft 34; and if the member 35 has previously been engaged with the left hand l the shaft.
  • each of these ink agitating means may be caused to traverse the lengthof its appropriate division of the ink fountain and to maintain the ink therein in a stirred or agitated condition irrespective of the length of the particular fountain division in which it is operating.
  • carriage and ink agitating means may be affixed to the rail and removed therefrom as desired.
  • a single carriage and ink agitator may be used to traverse the entire length of the fountain, the trip means being adjusted at each end of the fountain.
  • dividers may be used in the fountain to confine the ink to such portion of the fountain as is required for the particular job being run; and it is an advantage of this invention that agitation may be accomplished in any portion of the fountain thus partitioned off.
  • the mechanism of the invention may be usefully employed to increase the rate or degree of agitation where split fountain printing is not being done.
  • many of the carriage and ink agitating means as desired may be located along the shaft 3, and trip means employed to cause each of them to traverse a selected length of the fountain. This results in a more frequent .5 traverse of each fountain portion by agitating means, increasing the frequency of agitation.
  • the ink agitating means may be easily removed for cleaning, either by removing the entire carriage or by removing part 25 and the elements in connection therewith upon loosening the thumb screws 32.
  • an ink fountain is partially shown comprising a slanting lower Wall 54 and an end wall 55 and an ink fountain roller 55a.
  • Ink fountains may take various shapes on different printing presses; but a typical cross sectional shape is shown in FIGS. 6, 7, and 9 and will serve as illustrative.
  • a body of ink 56 is shown in the fountain.
  • a bracket means 57 is attached to the end wall 55 of the ink fountain.
  • An arm 59 is shown as pivoted to the bracket 57.
  • the adjacent end of -the -rail 1 is mounted to a plate 60 which is adjustably held to the arm 59 by bolts 61 operating in slots in the plate.
  • the mounting of the rail 1 at the other end of the fountain FIG. 7 is similar and includes a bracket means 57 atiixed to the end wall 55 of the ink fountain, an arm 59 pivoted to the bracket 57', and a plate 60.
  • the plate 60 is adjustably held to the arm 59 by bolts 61 operating in slots in the plate.
  • a motor 68 for driving the shaft 3 may be mounted to the plate 60' by means of another plate 69.
  • the end of the shaft 3 adjacent the plate 60' is provided with a coupling 63 shown in FIG. 4. In this event the motor will be connected to the coupling 63 by a coupling, with or without a train of gears (not shown), but usually built into the motor housing.
  • FIG. 9 is similar to FIG. 7, but illustrates another form of motor mounting. Like parts have been given like index numerals.
  • an enlarged arm 62 is pivoted to the bracket 57.
  • the adjacent end of the rail 1 is mounted to the plate 60 which is adjustably held to the enlarged arm 62 by the bolts 61 operating in slots in the plate.
  • the enlarged arm 62 is provided with a number of slots 70 by means of which a motor (not shown), equivalent to the motor 68 in FIG. 7, may be adjustably bolted to the arm 62.
  • the connection between the motor and the shaft 3 may be of any suitable type as described above.
  • the enlarged arm 62 will serve not only to support the plate 60' but also to support the motor.
  • a cover member 67 (FIGS. 6, 7 and 9) may be attached to the end brackets and may be hingedly positioned so as to cover the carriage, the shaft and the bar.
  • ink agitator mechanism it will be understood that it can serve other purposes as well. It can be used for agitating or stirring glues lor other adhesive or coating substances which are to be applied to webs by printing or roller coating, and indeed to the agitation of any substances contained in generally elongated trough-like containers. While for ink agitation a rotating cone as illustrated herein is preferred, other agitating means may be employed which are rotary or nonrotary in character. Blade-like elements may frequently be employed without rotation to agitate, stir or mix liquid or viscous materials being operated upon, and excellent stirring, mixing or agitating results may be obtained by the use of appropriately shaped rotary blade-like elements having holes in them.
  • An agitator mechanism comprising a rail, a doublethreaded .shaft mounted for rotation with respect to said rail, a carriage slidably mounted on said rail and detachable therefrom, a rocking shaft journaled in said carriage with its axis radially disposed to said doublethreaded shaft, said rocking shaft having on one end a means for engaging selectively one 4of the threads of said double-threaded shaft, said rocking shaft having on its other end a member for rocking said shaft, a bar slidably mounted on said carriage in parallelism to said rail, resiliently mounted plungers at the ends of said bar, a resilient connection between said bar and the means for rocking said rocking shaft, trip means adjustably mountable with respect to said rail and located to be contacted by said plungers, and a resilient interconnection between said bar and the means for rocking said rocking shaft, the said resilient interconnection being located to pass dead center when the bar is moved longitudinally in either direction, whereby to urge said means for rocking said rocking shaft
  • said agitating device has a housing detachably mounted on said carriage, said housing containing a gear with teeth meshing with the teeth of the first mounted gear, said gear in said agitating device being mounted upon a shaft extending through said housing and carrying upon one end an agitating means, whereby when said carriage is moved along said shaft said agitating means is caused to rotate.
  • an angular rail means for mounting said rail tiltably at each end of ink fountains, a -double-threaded shaft mounted for rotation within theY hollow of said rail, a plurality of carriages slidably mounted on said rail, each carriage having a single means for engaging one or the other of the threads of -said threaded shaft, trip means for causing said thread engagement means to shift from a position to engage one of said threads to a position to engage the other, said trip means being adjustable along the length of said rail, whereby each of said carriages may be caused continuously to traverse selected portions of the length of said rail and shaft, and agitating means mounted upon the respective carriages.

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  • Inking, Control Or Cleaning Of Printing Machines (AREA)
US452608A 1965-05-03 1965-05-03 Ink agitator Expired - Lifetime US3292534A (en)

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Application Number Priority Date Filing Date Title
US452608A US3292534A (en) 1965-05-03 1965-05-03 Ink agitator
BE705404D BE705404A (hu) 1965-05-03 1967-10-20

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US452608A US3292534A (en) 1965-05-03 1965-05-03 Ink agitator

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3590736A (en) * 1969-01-10 1971-07-06 Theodore C Malek Ink scraper member mounted on ink agitator carriage
US3710714A (en) * 1970-11-09 1973-01-16 Polygraph Leipzig Stirring apparatus for circulating color or ink in the color chest of a printing machine
US3848529A (en) * 1972-10-24 1974-11-19 Baldwin Gegenheimer Corp Ink level control system
US6397745B2 (en) 1996-09-30 2002-06-04 Accel Graphic Systems, Inc. Method and apparatus for maintaining ink level in ink fountain of printing press

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1401218A (en) * 1921-05-26 1921-12-27 Charles F Weldon Mechanical inking apparatus
US2234754A (en) * 1939-11-25 1941-03-11 Gegenheimer William Ink fountain mixer and agitator
US2447868A (en) * 1945-05-09 1948-08-24 Ortleb Douglas Ink agitator
US3084625A (en) * 1961-04-05 1963-04-09 Baldwin Gegenheimer Corp Ink agitator device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1401218A (en) * 1921-05-26 1921-12-27 Charles F Weldon Mechanical inking apparatus
US2234754A (en) * 1939-11-25 1941-03-11 Gegenheimer William Ink fountain mixer and agitator
US2447868A (en) * 1945-05-09 1948-08-24 Ortleb Douglas Ink agitator
US3084625A (en) * 1961-04-05 1963-04-09 Baldwin Gegenheimer Corp Ink agitator device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3590736A (en) * 1969-01-10 1971-07-06 Theodore C Malek Ink scraper member mounted on ink agitator carriage
US3710714A (en) * 1970-11-09 1973-01-16 Polygraph Leipzig Stirring apparatus for circulating color or ink in the color chest of a printing machine
US3848529A (en) * 1972-10-24 1974-11-19 Baldwin Gegenheimer Corp Ink level control system
US6397745B2 (en) 1996-09-30 2002-06-04 Accel Graphic Systems, Inc. Method and apparatus for maintaining ink level in ink fountain of printing press
US6401612B2 (en) 1996-09-30 2002-06-11 Accel Graphic Systems, Inc. Method and apparatus for maintaining ink level in ink fountain of printing press
US6619206B2 (en) 1996-09-30 2003-09-16 Accel Graphic Systems, Inc. Method and apparatus for maintaining ink level in ink fountain of printing press

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Publication number Publication date
BE705404A (hu) 1968-03-01

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