US3769885A - Device for exposure of photomaterial in hand-operated photocomposing devices - Google Patents

Device for exposure of photomaterial in hand-operated photocomposing devices Download PDF

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Publication number
US3769885A
US3769885A US00275121A US3769885DA US3769885A US 3769885 A US3769885 A US 3769885A US 00275121 A US00275121 A US 00275121A US 3769885D A US3769885D A US 3769885DA US 3769885 A US3769885 A US 3769885A
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United States
Prior art keywords
symbol
width
reversing motor
rack
illumination
Prior art date
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Expired - Lifetime
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US00275121A
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English (en)
Inventor
H Linde
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.)
H Berthold AG
Original Assignee
H Berthold AG
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Filing date
Publication date
Priority claimed from DE19712137934 external-priority patent/DE2137934C3/de
Application filed by H Berthold AG filed Critical H Berthold AG
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Publication of US3769885A publication Critical patent/US3769885A/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
    • B41B—MACHINES OR ACCESSORIES FOR MAKING, SETTING, OR DISTRIBUTING TYPE; TYPE; PHOTOGRAPHIC OR PHOTOELECTRIC COMPOSING DEVICES
    • B41B17/00—Photographic composing machines having fixed or movable character carriers and without means for composing lines prior to photography
    • B41B17/02—Photographic composing machines having fixed or movable character carriers and without means for composing lines prior to photography with manually-adjustable character carriers to enable characters to be photographed in succession

Definitions

  • ABSTRACT Device for the photographic composition of characters with random widths which are not divisible into subunits, which are determined by control marks on a character support associated with the characters, and which control marks control advance of a film by means ofa sensing device, before the character support is subsequently released and the next character can be brought into a projected position, a pivoting mirror being disposed in the beam path of an optical sensor for a width mark together with a reversing motor which is actuatable in a given direction by an electronic control simultaneously with the illumination of a symbol, and is connected via toothed gears with a rack, one of the gears being directly coupled with the reversing motor and being connectable via a coupling to an element for the width shaft of a photo-layer support upon reversal of rotation of the reversing motor, after the width value of the symbol to be set-in has
  • This invention relates to a device for the photographic setting of type with random widths that are not subdividable into sub-units, determined by control marks associated with the characters on the character support, which control marks control film advance by means of a sensing device before the support is subsequently released and the next character can be brought into the projection position, as generally set'forth in commonly owned US. Pat. application Ser. No. 23,788 now US. Pat. No. 3,695,155 dated Oct. 3, 1972.
  • a handoperated photocomposing. device in which symbols on the character support corresponding to the graphic configuration of the characters such as letters or the like present the most multifarious lengths that cannot be divided into discrete subdivisions, whereby there is a mark analogous to its width associated with each character.
  • the composing step. for each symbol or sign is shortened in that the exposure of the photolayer support and the width shift thereof no longer occur in temporally successive stages, but rather at the same time with the exposure of the character a storage of the vwidth value is effected so that immediately after this storage and after conclusion of the exposure the next symbol can be selected, during which operation the width shift of the photolayer support can be effected.
  • the sensing of the width mark analogous to the width of the set-in symbol is accomplished via an optical sensor comprising a lamp, a condenser, an objective, a pivoting mirror and a photoelectronic transducer, whereby the pivoting.,mirror is movedby means of asynchro motor via an electromagnetic coupling, a gear and a lever transmission untilthe width mark triggers a photoelectronic signal in the transducer,
  • the synchronous motor used in such device runs during the entire operating. time of thephotocomposing instrument, whereby connectionof the mechanism for the pivoting mirror for storing'the width value occurs simultaneously with: the illuminationof a symbol,.and the electromagnetic coupling is againrde-energized as soon as the optical imageofthe width-mark-falls on the photo-electric transducer via thepivoting mirrorwhich continuously turns on a shaft; Sincethe synchro-motor that is used has only one direction-of rotation, the width shift occurs after completion of the exposure process and the resetting of the storage device with deenergized connection, as the result ofthe intrinsic weight of a balance furnishedespecially for this purpose.
  • the present invention is directed to a further advantageous device of a similar type, which constitutes-a further development and improvement upon the earlier filed patent.
  • the present preferred embodiment of a device for mechanical storage of analog width values in handactuated photocomposing devices during the exposure time is characterized in that the pivoting mirror that is disposed in the beam path of an optical sensor for the width mark is connected via toothed gears and a rack with the reversing motor that is actuatable in a predetermined direction by an electronic control, at the same time as the process of illumination of the symbol, by which arrangement the gear that is directly coupled with the reversing motor is connectable via a coupling to an element for width shift of the photolayer support upon reversal of the direction of rotation of the reversing motor, as the width of the symbol in question that is to be set is stored by opposed analog linear movement of the rack, and the illumination of the symbol is terminated.
  • the sensing of the width mark by no means needs solely to be an optical sensing as in the present example. In general it can be effected in terms of the special nature of the width mark as a cam, perforation, photo mark or the like according to its length, thickness, position or even diameter, by mechanical, electric, magnetic or other suitable means, aside from the photooptical.
  • the preferred device characterizedinthe above form for mechanical intermediate storing of widths which are not discrete is made of only a small number of mechanical parts which also may be commercially available finished parts suchas gears, racks, etc.
  • the reversing motor that is used is actuated only during storage of the width value and inthe reverse direction during the subsequent widthshift, so that wear is minimal.
  • the small number of structural'parts makes the device of the invention little susceptible to damage, and absolutely reliable in function.
  • Each-symbol 2 in the form of atype character or the like can'be disposed in the beam path of a light source 4 by a suitable setting of the symbol-support for its projectiononto aphotolayer support 7;
  • Thecharacter support 1 shown here partly broken away can bemade in the form of asupporting plate or a rectangular support table.
  • Eachv symbol 2 has associated: with it' awidth mark 3 whose length,,thickness or position withreference to afixed zero point represents the actual width.
  • this element consists of a photographically applied mark.
  • it can alternately compriseacam, a perforation, magnetizing on a magnetic tape, or the like.
  • the optical sensor for width mark 3 operates a second light source 4a which throws the image of width mark 3 via objective 13 and pivoting mirror 14 onto a shield 15.
  • image 16 of width mark 3 first impinges on any part of shield 15.
  • pivoting mirror 14 is simultaneously turned at a constant angular velocity about its shaft 17 so that image 16 moves on shield 15 in the direction of arrow 19 onto a slit 20.
  • a pulse is developed on a photoelectric transducer 21, whereby the movement of rotation of pivoting mirror 14 is interrupted.
  • pivoting mirror 14 synchronously with the illumination-and projection of a symbol 2 onto thephotolayer support 7, is effected via an electronic control 8.
  • electronic control 8 is connected to a reversing motor 9 or a braking motor whose pinion 29 on the output shaft thereof engages the teeth of a gear 10 which in turn are in engagement with the teeth of a rack 11.
  • rack 11 is provided with additional teeth as shown, which engage the teeth of a gear 18 that is in fixed connection with a shaft 17 of pivoting mirror 14.
  • reversing motor 9 is simultaneously set into rotation via electronic control 8, so that rack 11 will be moved in the direction of arrow 12 until image 16 of width mark 3 stands over slit 20 and is thereby in alignment withphotoelectric transducer 21.
  • the pulse that is thereby developed cuts out reversing motor 9 via electronic control 8.
  • the width stored by the analog translation of rack 11 is transferred to photolayer support 7, i.e., the latter is advanced by exactly this width and positioned so that it can be held for receiving the next symbol 2.
  • the releasable character support 1 immediately after the conclusion of the illumination of the foregoing character or symbol 2 with simultaneous storage of its width value, can be set by the operator of the photocomposing machine to the next symbol 2.
  • the photocomposing machine as set forth in the present example for one character size for the sake of simplicity can, of course, be used with suitable means for all character sizes.
  • the setting speed can be increased by approximately one third.

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  • Projection-Type Copiers In General (AREA)
  • Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
US00275121A 1971-07-26 1972-07-26 Device for exposure of photomaterial in hand-operated photocomposing devices Expired - Lifetime US3769885A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712137934 DE2137934C3 (de) 1971-07-26 Vorrichtung zum Belichten von Fotomaterial In handbetätigten Fotosetzgeräten

Publications (1)

Publication Number Publication Date
US3769885A true US3769885A (en) 1973-11-06

Family

ID=5815177

Family Applications (1)

Application Number Title Priority Date Filing Date
US00275121A Expired - Lifetime US3769885A (en) 1971-07-26 1972-07-26 Device for exposure of photomaterial in hand-operated photocomposing devices

Country Status (3)

Country Link
US (1) US3769885A (enrdf_load_stackoverflow)
FR (1) FR2147608A6 (enrdf_load_stackoverflow)
GB (1) GB1381327A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4200246A (en) * 1977-04-14 1980-04-29 J. Bobst & Fils, S.A. Conveyor device for a thin web and a method of conveying
US20110272000A1 (en) * 2010-05-06 2011-11-10 Thermoguide Ltd. Linear low concentration photovoltaic generator

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2978969A (en) * 1957-05-28 1961-04-11 Heine Hugo Photographic type-composing apparatus
US3434402A (en) * 1966-01-11 1969-03-25 Fairchild Camera Instr Co Turret font photocomposing machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2978969A (en) * 1957-05-28 1961-04-11 Heine Hugo Photographic type-composing apparatus
US3434402A (en) * 1966-01-11 1969-03-25 Fairchild Camera Instr Co Turret font photocomposing machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4200246A (en) * 1977-04-14 1980-04-29 J. Bobst & Fils, S.A. Conveyor device for a thin web and a method of conveying
US20110272000A1 (en) * 2010-05-06 2011-11-10 Thermoguide Ltd. Linear low concentration photovoltaic generator

Also Published As

Publication number Publication date
DE2137934B2 (de) 1973-06-14
FR2147608A6 (enrdf_load_stackoverflow) 1973-03-09
GB1381327A (en) 1975-01-22
DE2137934A1 (de) 1973-03-01

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