US3363553A - Copymaking device - Google Patents

Copymaking device Download PDF

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Publication number
US3363553A
US3363553A US538875A US53887565A US3363553A US 3363553 A US3363553 A US 3363553A US 538875 A US538875 A US 538875A US 53887565 A US53887565 A US 53887565A US 3363553 A US3363553 A US 3363553A
Authority
US
United States
Prior art keywords
rollers
switch
engagement
copymaking
pressure
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
US538875A
Other languages
English (en)
Inventor
Norman N Lareau
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak 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
Priority claimed from US288680A external-priority patent/US3227074A/en
Priority to GB25209/64A priority Critical patent/GB1074596A/en
Priority to CH799564A priority patent/CH443908A/fr
Application filed by Eastman Kodak Co filed Critical Eastman Kodak Co
Priority to US538875A priority patent/US3363553A/en
Application granted granted Critical
Publication of US3363553A publication Critical patent/US3363553A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
    • G03D13/00—Processing apparatus or accessories therefor, not covered by groups G11B3/00 - G11B11/00
    • G03D13/002—Heat development apparatus, e.g. Kalvar
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41L—APPARATUS OR DEVICES FOR MANIFOLDING, DUPLICATING OR PRINTING FOR OFFICE OR OTHER COMMERCIAL PURPOSES; ADDRESSING MACHINES OR LIKE SERIES-PRINTING MACHINES
    • B41L19/00—Duplicating or printing apparatus or machines for office or other commercial purposes, of special types or for particular purposes and not otherwise provided for
    • B41L19/003—Duplicating or printing apparatus or machines for office or other commercial purposes, of special types or for particular purposes and not otherwise provided for using heat, e.g. wax transfer
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/02—Exposure apparatus for contact printing
    • G03B27/14—Details
    • G03B27/18—Maintaining or producing contact pressure between original and light-sensitive material
    • G03B27/22—Maintaining or producing contact pressure between original and light-sensitive material by stretching over a curved surface
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/02—Exposure apparatus for contact printing
    • G03B27/14—Details
    • G03B27/30—Details adapted to be combined with processing apparatus
    • G03B27/306—Heat development

Definitions

  • Thin invention relates generally to copying apparatus, and more specifically to a copymaking device having an electrical control system for automatically moving a pair of presure rollers into pressure engagement when the device is turned on, and relieving such pressure when the device is turned off.
  • Applicants copymaking device incorporates therein a novel electrical control system for automatically moving the rollers into pressure engagement when the machine is turned on, and automatically relieving the pressure between the rollers when the machine is turned off. This prevents the formation of a flat on the resilient rollers,- which forms following a sustained period of inoperation and which interferes with the proper reproduction of copies.
  • one of the objects of the present invention is to provide an improved copymaking device having means for automatically moving the pressure rollersinto pressure engagement when the device is turned on, and moving the rollers out of pressure engagement when the machine is turned off.
  • Another object of the invention is to provide an improved copymaking device of simple design and construction, thoroughly reliable and eflicient in operation, and economical to manufacture.
  • FIG. 1 is a perspective view of a copymaking device constructed in accordance with a preferred embodiment of the present invention, with portions thereof broken away and sectioned, and other parts eliminated for purposes of clarity;
  • FIG. 2 is a perspective view of the device looking at it from a different angle with a portion thereof in an exploded view, other portions thereof broken away and sectioned, and other parts eliminated for purposes of clarity;
  • FIG. 3 is a schematic electrical wiring diagram for the copymaking device.
  • the copymaking device of this invention comprises a base 5, FIG. 1, having a compartmented frame 6 secured to its undersurface for holding sheets of matrix and sheets of copy material.
  • a frame member 7 having side plates 8 is secured to the top of base 5, and each plate 8 has a V-shaped notch 9 for receiving a roller bearing 11 Within which one end of a metal roller 12 is journaled.
  • Another bracket 13 is pivotally mounted on a shaft 14 carried by side plates 8, and also has side plates 15 with notches 16 therein for receiving roller bearings 17 in which the ends 17 of a resilient roller 18 are journaled.
  • the bracket 13 and its roller 18 are pivotally moved toward and away from metal roller 12 by means of a pair of axially spaced eccentrics 19 (seen best in FIG.
  • each spring 24 has one end encircling a grooved end of a rod 25 carried in a notch 26 in side plates 15, and its opposite end secured to a threaded bolt 27 (seeFIG. 1) extending through a bar 28 carried 'by fixed bracket 7 and secured to the bar by a nut 29.
  • a feed duct comprising upper and lower plates 31, 32 respectively is secured to fixed bracket 7 by any known means, not shown, for guiding a matrix and copy sheet sandwich 30 into the nip of the pressure rollers 12, 18.
  • An upper guide member 33 (seen best in FIG. 1) pivotally secured by pins 30 to side plates 8 of fixed bracket 7 is adapted in its operative position to receive the matrixcopy sheet sandwich from the rollers 12, 18 and direct it out of the device.
  • the guide member 33 has a projection 30' at each end which is adapted to rest on the periphery of bearing 17 when it is in its operative position.
  • a plurality of upright plates 34, 35, 36, and 37 forming a partial enclosure of brackets 7, 13 and rollers 12, 18.
  • An L-shaped cover member 38 partially shown in FIG. 2 is releasably secured to the plates 34, 35 and 36 to complete the enclosure, which has one notch 39 therein through which plates 31, 32 extend, and a slot 41 in upper plate 38 through which guide member 33 extends. Slot 41 is in register with opening 40 of a housing 40 within which the device is enclosed.
  • a reflector, not shown, is secured to base 5 within the enclosure, and a resistive heating element 42 is secured to base 5 above the reflector for heating the enclosure.
  • insulating material 43 in blanket form of any known type is secured to the periphery of the enclosure by clips, not shown.
  • the temperature of the atmosphere within the enclosure and of the rollers 12, 18 is controlled by a thermostat 44' connected to a thermostat probe 44 of known type mounted within the enclosure adjacent the lower plate 32 of the duct (see FIG. 2).
  • the thermostat probe 44 in this position is responsive to the temperature of the lower plate 32, and the temperature of the lower plate is affected by the cooler matrix-copy sheet sandwich 30 as it is introduced into the device. Consequently, as the matrix-copy sheet sandwich 30 is moved over lower plate 32 by the operator, the temperature of the lower plate is reduced and actuates the thermostat probe 44 to call for more heat before the matrix-copy sheet sandwich 30 reaches pressure rollers 12, 18.
  • thermostat probe 44 to the temperature of lower plate 32 may be controlled by the insertion of a sheet of insulating material 45 between the probe 44 and lower plate 32.
  • the insulating material 45 is releasably held to lower plate 32 by a spring clip 46 secured to lower plate 32.
  • the drive mechanism for rotatably driving roller 12 of the copy making device and thereby transporting between rollers 12, 18 when in pressure engagement a copy sheetmatrix sandwich introduced therebetween comprises a second drive means such as a motor 47 secured to a bracket, not shown, mounted on base for driving a shaft 48 through a speed reducer, not shown.
  • Shaft 48 extends through an opening, not shown, in plate 36, and is driving- 1y connected by a coupling 4-9 to shaft of roller 12 for driving the roller at a predetermined rotational speed.
  • the mechanism for moving rollers 12, 18 between a normal disengaged position and an engaged position comprises a first drive means such as motor 51, similar to motor 47, secured to the bracket, for driving a shaft 52 through a speed reducer, not shown.
  • a switch actuating means comprises a cam 54 secured to cam shaft 21 and having a projection 55 thereon for moving a micro-switch 56 of a switch control means between two positions in the power circuit.
  • the switch control means also comprises an operating switch S movable between off and on positions into engagement with off and on contacts respectively by means of buttons 57, 58 for connecting an electrical power source to the device.
  • the off and on contacts are electrically connected to contacts 61, 59 respectively 'as seen in FIG. 3.
  • the copying device is then in position for use, and the operator may feed matrix and copy sheet sandwiches therethrough for producing copies.
  • the device is turned ofi by moving the operating switch S to its off position. This action disconnects the power supply from roller drive motor 47, and connects it to cam shaft drive motor 51 through micro-switch 56 which is still in connection with contact 61. Consequently, cam shaft drive motor 51 drives the cam shaft 21 and earns 19, 54 through the remainder of its revolution, during which roller 18 is moved out of pressure engagement with roller 12, and projection releases micro-switch 56 which returns to its normal position in engagement with contact 59, breaking the electrical circuit to cam shaft drive motor 51.
  • a copymaking device for making a copy from an exposed matrix by placing a copy sheet in superimposed relation with said matrix to form a copy sheet-matrix sandwich .and feeding the sandwich through the device where it is subjected to heat and pressure, the combination comprising:
  • first drive means for moving said rollers between a normally disengaged position and an engaged position
  • second drive means for rotatably driving one of said rollers for transporting between said rollers a copy sheet-matrix sandwich which has been manually introduced into the nip of said rollers while in their engaged position;
  • switch control means for connecting said first and second drive means to a power source, and including,
  • said switch control means adapted upon movement of said second switch to said on position to connect said power source to said first and second drive means whereby said switch actuating means is operated by said first drive means to move said first switch to said second position disconnecting said power source from said first drive means when said rollers are in their engaged position
  • a copymaking device for making a copy from an exposed matrix by placing a copy sheet in superimposed relation with said matrix to form a copy sheet-matrix sandwich and feeding the sandwich through the device where it is subjected to heat and pressure, the combination comprising:
  • first drive means for moving said rollers between a normally disengaged position and an engaged position
  • second drive means for rotatably driving one ofsaid rollers for transporting between said rollers a copy sheet-matrix sandwich which has been manually introduced into the nip of said rollers while in their engaged position;
  • a first switch responsive to said switch actuating means for movement between a normal first position in which it is in engagement with said first contact, and a second position in which it is in engagement with said second contact;

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
US538875A 1963-06-18 1965-12-23 Copymaking device Expired - Lifetime US3363553A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB25209/64A GB1074596A (en) 1963-06-18 1964-06-18 Photographic copying apparatus
CH799564A CH443908A (fr) 1963-06-18 1964-06-18 Machine à copier
US538875A US3363553A (en) 1963-06-18 1965-12-23 Copymaking device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US288680A US3227074A (en) 1963-06-18 1963-06-18 Rotary copy making device with temperature responsive heating means
US538875A US3363553A (en) 1963-06-18 1965-12-23 Copymaking device

Publications (1)

Publication Number Publication Date
US3363553A true US3363553A (en) 1968-01-16

Family

ID=26965165

Family Applications (1)

Application Number Title Priority Date Filing Date
US538875A Expired - Lifetime US3363553A (en) 1963-06-18 1965-12-23 Copymaking device

Country Status (3)

Country Link
US (1) US3363553A (fr)
CH (1) CH443908A (fr)
GB (1) GB1074596A (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3180999A (en) * 1961-03-24 1965-04-27 Tung Sol Electric Inc Circuit for controlling alternating currents
US3260197A (en) * 1964-05-01 1966-07-12 Eastman Kodak Co Pressure roller copy-making mechanism

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3180999A (en) * 1961-03-24 1965-04-27 Tung Sol Electric Inc Circuit for controlling alternating currents
US3260197A (en) * 1964-05-01 1966-07-12 Eastman Kodak Co Pressure roller copy-making mechanism

Also Published As

Publication number Publication date
GB1074596A (en) 1967-07-05
CH443908A (fr) 1967-09-15

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