US3504600A - Character presentation device for phototypographical apparatus - Google Patents
Character presentation device for phototypographical apparatus Download PDFInfo
- Publication number
- US3504600A US3504600A US650841A US3504600DA US3504600A US 3504600 A US3504600 A US 3504600A US 650841 A US650841 A US 650841A US 3504600D A US3504600D A US 3504600DA US 3504600 A US3504600 A US 3504600A
- Authority
- US
- United States
- Prior art keywords
- character
- link
- lens
- correction
- output
- 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
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Classifications
-
- 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
- B41B27/00—Control, indicating, or safety devices or systems for composing machines of various kinds or types
-
- 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
- B41B21/00—Common details of photographic composing machines of the kinds covered in groups B41B17/00 and B41B19/00
- B41B21/16—Optical systems
-
- 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
- B41B21/00—Common details of photographic composing machines of the kinds covered in groups B41B17/00 and B41B19/00
- B41B21/16—Optical systems
- B41B21/24—Optical systems defining multiple optical paths
- B41B21/28—Optical systems defining multiple optical paths with means for fount selection
Definitions
- a device for use in photocomposing machines, which corrects misalignment of characters projected from a character matrix through an optical projection system onto an output film plane.
- a pair of optical lenses are mounted in front of the output film plane, one of which is moved vertically by the motion of connected integrating linkages so as to cause a corrective-vertical shift in the optical path of character rays passing through the lens, while the other is similarly moved horizontally to effect a horizontal correction.
- the invention relates to photocomposing machines and,
- the object of the present invention is to correct the character misalignment caused by normal tolerances in the types of optical projection systems described above.
- a pair of moveable lenses which are introduced between the optical projection system and the output film plane.
- means of moving these lenses singly or in unison thereby causing a vertical and/or a horizontal shift of the character rays passing through them.
- the lenses can be made to assume a determinable unique position for each projected character so that, if an error is introduced in a characters optical path as it is projected through the optical projection system, the correction lenses will shift 3,504,600 Patented Apr. 7, 1970 BRIEF DESCRIPTION OF THE DRAWINGS.
- FIG. I is a schematic representation of a character projection system for a phototypographical machine employing the present invention.
- FIG. 2 is a front elevational view of the mechanism showing the relative position of the vertical lens housing to its associated solenoid integrating linkage assembly;
- FIG. 3 is a rear elevational view showing the relative position of the horizontal lens housing to its associated solenoid integrating linkage assembly
- FIG. 4 is a top plan view of the horizontal-integrating linkage assembly
- FIG. 5 is an enlarged detail view of three interconnecting links
- FIG. 6 is a sectional view taken along line 6-6 of FIG. 5;
- FIG. 7 is a simplified block diagram of the circuitry employed to introduce a correction to the correction lens housing.
- FIG. 1 schematically represents a character presentation scheme for a phototypographical apparatus such as that described in U.S. Patent 2,942,538. It comprises a light source 11, condenser lens 12, character matrix 13, collimator lens 14, character selection optical wedges 15, and film plane 17. Condenser lens 12 distributes light from source 11 evenly across the face of matrix 13. The rays of light which pass through each individual character emerge from collimator lens 14 as parallel light bundles.
- the wedges consist of opposed pairs having different face angles, as between pairs, and can be positioned and/or rotated so as to optically scan the matrix and sequentially select desired characters by deviating one of the light bundles emerging from the collimator lens onto the optical axis of the system.
- the desired character light bundle is projected through the wedges, it is passed through aperture mask 16 (which blocks all other light bundles) and falls on film plane 17 in conjunction with the opening of a shutter (not shown). Due to the number of optical wedges used in a system capable of selecting from a large array of characters, the acceptable tolerances in the specified refraction angle of each wedge cumulatively may be sufiicient to cause a shift of the projected character from the desired optical path.
- the correction required for each character can be pre-determined by calibrating each photocomposing machine against a standard character matrix. Each character is projected through the optical projection system and. the misalignment, ifany, is noted.
- the appropriate correction factor for each matrix is programmed into the machine so as to cause the correction lenses to be appropriately positioned for a character so that when the character image is projected to the film it will have passed through the correction lenses which had previously been positioned to elfect the desired correction for that character.
- the signal will also be used to shift the correction lenses to provide the desired correction as determined by the calibration procedure.
- the present invention accomplishes this programming by causing a solenoid operated linkage to produce an output in response to an input energizing signal associated with the selection of a specific character for projection.
- the linkage output is connected to the correction lens housing and produces a proportional movement in that member such that the lens is properly positioned to correct the selected characters optical path.
- FIG. 2 shows the vertical correction lens holder 18 mounted to support 19 by flexible bands 20 and 21.
- Lens 22 is set within the holder and an arm 23, attached to the holder by screws 24, is seated in the output link 25 of the vertical solenoid-integrating link assembly 26.
- Arm 23 is moved vertically in response to an additive movement of the solenoid-driven linkage.
- the maximum vertical displacement of the lens is .0375 inch (a two unit shift of a character on the film plane) achieved when all solenoids are energized.
- Spring 27 returns the lens holder to its normal rest position upon the deenergizing of the solenoids and the relaxation of the output linkage.
- FIG. 3 shows the horizontal correction lens holder 28 mounted to support 29 by flexible bands 30 and 31.
- Lens 32 is set within the holder and arm 33 is seated in the output link 34 of horizontal solenoid integrating link assembly 35. Arm 33 is moved horizontally in response to an additive movement of the solenoid driven linkage, hereinafter to be described.
- the maximum horizontal displacement is .0475 inch.
- Spring 36 returns the lens holder to its normal rest position after the solenoids are deenergized.
- the normal rest position of both lenses causes a maximum vertical or horizontal shift in the optical path of a projected character. In practice, therefore, each lens will usually be made to assume some intermediate position for each presented character requiring correction.
- FIG. 4 shows the component parts of the horizontal solenoid integrating linkage assembly. The operation of this assembly will be described in detail and will serve as a description of the vertical assembly since both operate in the's ame manner.
- the drawing shows four solenoids connected by an integrating linkage system.
- a point on output link 34 imparts motion to the attached arm of the horizontal lens holder proportional to the number of solenoids energized.
- the four solenoids are adjusted so that, when energized, each presents a different lens displacement.
- the Solenoids maybe energized in any combination displacing the horizontal lens proportionately.
- solenoids 37 and 38 are connected to link 39 by pins 40' and 41 respectively.
- Link 39 is connected. to link 42 by screw 43.
- Solenoids 44 and 45 are connected in a similar manner to link 46 by pins 47 and 48; link 46 is connected to link 49 by screw 50.
- Output link 34 is connected to link 42 by screw 51 and to link 49 by screw 52.
- Link 42 is connected to the midpoint of link 39 and is moved only /2 the distance pin 40 is moved, or .010 inch.
- Link 34 connected to link 42 at screw 51, is forced to pivot about screw 52.
- Screw 51 is located a distance of 4x from screw 52, i.e., /s of the distance to point 0.
- Point 0 is a distance x from the pivot point. Point 0 then moves in the opposite direction of screw 51 movement and at A of its distance, i.e., .010/ 4 or .0025 inch, the required correction. It is seen that point 0 can be made to move different increments by connecting the links to different points or changing the location of point 0, or both.
- 16 incremental positions (resulting in 16 corrections) are possible.
- the total displacement of the horizontal lens from one extreme to another is .0475 inch (all solenoids deenergized to all solenoids energized).
- the number of incremental positions and the total displacement can be increased by increasing the number of solenoids.
- FIG. 6 shows a shoulder screw 51 connecting links 34 and 42.
- the screws edge projects a short distance below link 42s bottom surface.
- the small projection permits washer 54 and nut 55 to be brought up flush against screw 51 rather than against the bottom surface of the link thereby permitting a small degree of play to develop between the contacting surfaces of links 34 and 42.
- Link 42 As link 42 is urged to the right, it exerts a force against guide spring 56 at pin 57.
- Spring 56 is bent around post 58 and is fixed to the post by washer 59 and E-ring 60.
- Spring adjusting screw 61 is set to provide a desired tension on the spring.
- Link 42 is forced to travel in a straight horizontal path between pin 62 and eccentric 63.
- Pin 62 is one-half of a dowel pin with the flat surface facing the link.
- Eccentric 63 can be turned so as to lean away from or into the links side. This arrangement permits less rigid tolerances to be employed when tooling the link width, i.e., if made too wide, the eccentric can be turned outward to accommodate the link.
- Broad headed pin 64 shown in dotted form, is mounted beneath tance required for the particular character being projected.
- solenoid 37 is deenergized.
- the solenoid arm pulls in until its motion is stopped by the collar 65 encountering the solenoid housing.
- Link 39 is held rigid by the arms of the solenoid while tension is maintained on link 42 in a direction away from link 39 by the still partially tensed spring 56.
- links 39 and 42 are identical to that of links 44 and 45 with the same elements (guide spring, eccentric, etc.) being used.
- the positioning of the horizontal and vertical lenses operates under control of the circuits shown in FIG. 7. As previously explained, correction factors for each character were determined before a machine is installed and are introduced so as to cause the lenses to modify the optical path when that character is selected.
- tape reader 66 or keyboard insertions are made
- multi-level binary code voltages which define both the character and its position on a matrix are applied to a binary to decimal decoder.
- the decoder (consisting of a series of AND gates) will convert the binary code representing a character into a single line output which is then applied to a diode board consisting of as many pairs of diodes as there are input voltages (a typical matrix containing 64 characters will require a diode board having 64 inputs from the decoder and 128 diodes).
- a diode board consisting of as many pairs of diodes as there are input voltages (a typical matrix containing 64 characters will require a diode board having 64 inputs from the decoder and 128 diodes).
- Each input signal applied to its associated diode pair provides two outputs; one output is sent to the horizontal patchboard 69 and the other to the vertical patchboard 70.
- These patchboards are wired at the time the character corrections are being determined and consist of mounted wire patches connected to one of 15 decimal output correction terminals.
- a patch is inserted for each character; practically it has been found that characters contiguous to each other on the character matrix (four characters embraced in a square) will require corrections so similar that anaverage correction can be applied.
- the two patchboards will each consist of 64 patches, each patch accommodating four character input connection signals.
- Those character groups requiring the same amount of corrections are interconnected in series by jumpers and one jumper is then used to connect all like points to the appropriate decimal output terminal.
- the output terminals are numbered from 8 to +7 and include a zero; these numbers represent the amount of correction units necessary to properly align the character and correspond to the number of unique positions the linkage assembly previously discussed can assume. Since the correction factor for each group of characters is determined and set during the calibration of the individual machine, the input signal value is always converted to an output signal of the desired value.
- the vertical and horizontal correction outputs from the patchboards are applied to decimal-to-binary encoders 71. These encoders charge the decimal correction signals into binary outputs which are then applied to flip-flop and AND gate circuits 72.
- the AND gates when a character is recognized and, when strobed, provide output correction signals to energize that particular combination of solenoids in horizontal or vertical linkage assembly 35 or 26 required to mechanically position the horizontal and vertical lens into the corrective position.
- a character presentation system having a character grid bearing an array of characters thereon, an optical system for projecting images of selected characters onto sensitized material, and means for selecting the characters whose images are to be successively projected, said system including a first movable lens interposed in the optical path of projected character images, a second movable lens interposed in the optical path of projected character images, means for moving said first lens vertically in selectable incremental distances, means for moving said second lens horizontally in selectable incremental distances, and patchboard means having input terminals representing character images to be projected and output terminals representing the incremental movement required of a lens to determine in accordance with the character selected for imaging onto sensitized material the incremental movement of said first and said second lenses for correcting misalignments of projected character images.
- each means for moving a lens vertically or horizontally into a selected position includes an integrating linkage whose output link is connected to the associated lens, and means for moving individual links of said linkage singly or in combination so as to cause said output link to assume a plurality of positions incrementally.
- a character presentation system wherein said means for moving the links of said linkage includes a plurality of solenoids each of which moves a link a fixed distance, and means for selectively energizing said solenoids, either singly or in combination, to thereby move a lens a predetermined incremental distance.
- said patchboard means includes a pair of patchboards, one for determining movement of the first lens, and one for determining movement of the second lens.
- a character presentation system includes a patchboard having input terminals representing character images to be projected and output terminals representing the incremental movement required of a lens for a particular character image.
- a character presentation system including means for converting the value of each output terminal representing a desired incremental movement from a decimal to a binary value in a decimal-to-binary encoder.
Description
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US65084167A | 1967-07-03 | 1967-07-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3504600A true US3504600A (en) | 1970-04-07 |
Family
ID=24610538
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US650841A Expired - Lifetime US3504600A (en) | 1967-07-03 | 1967-07-03 | Character presentation device for phototypographical apparatus |
Country Status (4)
Country | Link |
---|---|
US (1) | US3504600A (en) |
DE (1) | DE1772750C3 (en) |
FR (1) | FR1558219A (en) |
GB (1) | GB1193894A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2930297A (en) * | 1955-06-27 | 1960-03-29 | Graphic Arts Res Foundation In | Photocomposing machines |
US3126799A (en) * | 1962-06-29 | 1964-03-31 | stauffer |
-
1967
- 1967-07-03 US US650841A patent/US3504600A/en not_active Expired - Lifetime
-
1968
- 1968-03-28 FR FR1558219D patent/FR1558219A/fr not_active Expired
- 1968-05-27 GB GB25209/68A patent/GB1193894A/en not_active Expired
- 1968-06-28 DE DE1772750A patent/DE1772750C3/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2930297A (en) * | 1955-06-27 | 1960-03-29 | Graphic Arts Res Foundation In | Photocomposing machines |
US3126799A (en) * | 1962-06-29 | 1964-03-31 | stauffer |
Also Published As
Publication number | Publication date |
---|---|
GB1193894A (en) | 1970-06-03 |
DE1772750A1 (en) | 1970-09-10 |
DE1772750C3 (en) | 1974-10-31 |
FR1558219A (en) | 1969-02-21 |
DE1772750B2 (en) | 1974-04-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: ELTRA CORPORATION, OHIO Free format text: CERTIFIED COPY OF MERGER FILED IN THE OFFICE OF SECRETARY OF STATE OF DELAWARE ON JUNE 6, 1980, SHOWING MERGER AND CHANGE OF NAME OF ASSIGNOR;ASSIGNOR:ATREL CORPORATION;REEL/FRAME:003992/0237 Effective date: 19811020 Owner name: ELTRA CORPORATION, A CORP. OF NY Free format text: CERTIFIED COPY OF MERGER FILED IN THE OFFICE OF SECRETARY OF STATE OF DELAWARE ON JUNE 6, 1980, SHOWING MERGER AND CHANGE OF NAME OF ASSIGNOR;ASSIGNOR:ATREL CORPORATION (INTO);REEL/FRAME:003992/0237 Effective date: 19811020 |
|
AS | Assignment |
Owner name: ALLIED CORPORATION, NEW JERSEY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ELTRA CORPORATION;REEL/FRAME:004026/0293 Effective date: 19820531 Owner name: ALLIED CORPORATION; COLUMBIA RD. AND PARK AVE., MO Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:ELTRA CORPORATION;REEL/FRAME:004026/0293 Effective date: 19820531 |
|
AS | Assignment |
Owner name: LINOTYPE COMPANY, NEW YORK Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ALLIED CORPORATION;REEL/FRAME:004754/0711 Effective date: 19870806 Owner name: LINOTYPE COMPANY, 425 OSER AVE., HAUPPAUGE, NY 117 Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:ALLIED CORPORATION, A CORP. OF DE;REEL/FRAME:004754/0711 Effective date: 19870806 |