US2883187A - High speed tape reader mechanism - Google Patents

High speed tape reader mechanism Download PDF

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Publication number
US2883187A
US2883187A US356771A US35677153A US2883187A US 2883187 A US2883187 A US 2883187A US 356771 A US356771 A US 356771A US 35677153 A US35677153 A US 35677153A US 2883187 A US2883187 A US 2883187A
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Prior art keywords
tape
path
motion
jaws
force
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Expired - Lifetime
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US356771A
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English (en)
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Robert M Brink
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TI Gotham Inc
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Time Inc
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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/20—Moving record carrier backwards or forwards by finite amounts, i.e. backspacing, forward spacing
    • 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
    • B41B27/02—Systems for controlling all operations
    • B41B27/10—Systems for controlling all operations with direct control of all operations by input of recorded or stored information
    • B41B27/12—Systems for controlling all operations with direct control of all operations by input of recorded or stored information on tapes
    • B41B27/16—Systems for controlling all operations with direct control of all operations by input of recorded or stored information on tapes on magnetic tapes
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/26—Driving record carriers by members acting directly or indirectly thereon
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/56—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function the record carrier having reserve loop, e.g. to minimise inertia during acceleration measuring or control in connection therewith
    • G11B15/58—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function the record carrier having reserve loop, e.g. to minimise inertia during acceleration measuring or control in connection therewith with vacuum column
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L13/00—Details of the apparatus or circuits covered by groups H04L15/00 or H04L17/00
    • H04L13/02—Details not particular to receiver or transmitter
    • H04L13/06—Tape or page guiding or feeding devices

Definitions

  • This invention relates generally to the art of motion control mechanisms adapted to produce intermittent states of dwell and high speed motion for an elongated strip of material, and more particularly to the art of motion control mechanisms adapted to produce the aforei tain period of time (which may be called a time lag) is always required for the transition of the condition of the strip from a state of rest to a state of motion or the reverse.
  • This time lag which represents a non-utilizable ytheexpense of the utilizable portion of the same.
  • the time lag between the states of dwell and motion of a strip thus determines the highest frequency of alternation at which a motion control mechanism can be employed.
  • ⁇ motion control mechanisms which may be adapted to produce alternate dwell and high speed motion states for a strip of elongated material.
  • the control over the motion of the strip is exerted by a positive drive, such as for example a sprocket wheel w-hich engages holes in the strip, or a driven roll which frictionally contacts the strip in a non-slipping manner.
  • a positive drive such as for example a sprocket wheel w-hich engages holes in the strip, or a driven roll which frictionally contacts the strip in a non-slipping manner.
  • the mass involved which must be accelerated and decelerated is the relatively large mass of the member which contacts the strip, ⁇ together with the mass of the' ⁇ arrangement which drives the member.
  • strip ⁇ and motion control mechanism are associated with a utilization device which canotherwise respond at a much more rapid rate.
  • Another object of the invention is to provide new and improved mechanism for producing rapidly alternating motion and dwell states for a strip of elongated material in which the only mass which determines the time lag of the strip between states is that of the strip itself.
  • a further object of the invention is to provide for firm grasping of the strip when arrested from motion.
  • a still further object of the invention is to provide a yieldable strip driving ⁇ force to guard against tearing of the strip when rapidly decelerated.
  • an elongated strip of material as for example an indicia bearing, magnetic tape 1s urged to motion by a driving mechanism which exerts a V ICC continuous but yieldable driving force on a portion ofthe strip.
  • Ahead of the driving mechanism is located a ⁇ pair of jaw members which may be selectively closed or opened to grasp orrelease, respectively, another portion of the strip.
  • the jaws areopened by an actuator, for example a solenoid, with the result that the strip rst rapidly accelerates to a stat-e of high speed motion, and then, upon subsequent deenergization of the actuator, the strip is rapidly decelerated to return to the dwell state.
  • an actuator for example a solenoid
  • Figure l is a diagram in perspective of the motion control mechanism ⁇ and the elongated strip of material moved thereby;
  • Figure 2 is a schematic diagram of an apparatus with ⁇ which the motion control mechanism is associated;
  • Figure 3 is a fragmentary view of a narrow magnetic tape with indicia groups therein extending along the tape length;
  • Figure 4 is a'sectional view of another form of mechanism for imparting driving force to the tape.
  • Figure 5 represents in sectional view yet another form of force imparting mechanism.
  • a strip of elongated material in the present instance, shown as a length of magnetic tape anddesignated by the number 10 passes between two oppositely disposed longitudinally extending sections 12 and 13 of a pair of continuous fabric belts 14 and l5, respectively.
  • the length and position of section 12 is formed by passing belt 14 over and around a driving roll 16 and an idler roll 17, both of which rolls are supported as described below by a base 18 which also acts as the support for the other major elements of the tape control mechanism.
  • the driving roll 16 is rigidly mounted on a transverse shaft 19 having opposite ends thereof journalled in a pair of supporting standards Ztl (only one of which is shown) upon the base 18.
  • the idler roll 17 ⁇ is mounted on a transverse shaft 23 having opposite ends journalled in standards 24 and 25.
  • the position of the standards 24 and 25 upon the base 18 may be adjusted by set screws 2o.
  • the longitudinally extending section 13 of :belt 15 is formed by the passing of the fabric i
  • the shaft 19 is provided with a pulley 38 which is 3 means of set screws-47 and 47a in slots 48, 48a, respec tively.
  • the shaft 41 is driven by a pulley 49 and belt 50 from a pulley 51 driven by the drive shaft 33. Accordingly, each of the sections 12 and 13 of belts 14 and 15 will be givena motion in the same longitudinal direction, as shownby the arrows of Figure l.
  • the upper plate 40 is adjustable in displacement from base 18 by a pair of standards 52 (one not shown) upstanding from Ibase 18 and a corresponding pair of standards 53 (one not shown) downstanding from plate Each of thestandards 52 is fastened to its corresponding standard 53 by a pair of set screws 54, 54a passing through vertical slots in the two standards.
  • this tangential drive force is held 'by proper spacing between upper roll plate 40 and base 18 to a value sufliciently moderate so that when the tape is elsewhere firmly grasped, first, the motion of the tape 10 is arrested without any damage resulting to the tape from the moving belts and, second, the belts 14 and 15 are substantially unaffected by the fbraking action of the stopped tape, continuing, therefore, to move at their usual speed.
  • the -use of the linearly extended sections of 12 and 13 has the advantage that the tape when arrested does not bind to the drive surface, thus unduly amplifying the drive force imparted to the tape.
  • a pair of arms 55 hinged on shaft 44 are joined together at their free ends by a pin 56 carrying in freely rotatable relation 'an idler roll 57.
  • the arms 55 are spring biased by a pair of coil springs 58 (one not shown) so that the idler roll 5'7v is urged downwardly against -belt 15.
  • jaw 60 is a fixed jaw mounted upon ⁇ base 18 and having for a jaw face a iiate smooth upper surface.
  • the other movable jaw 61 consists of 4a cross arm 62, a sleeve 63 which is freely pivotable about a transverse pivot pin ,64, and a connecting arm 65 which joins cross arm 62 to sleeve 63.
  • the cross arm 62 has a flat lower surface covered with a semi-yieldable material (c g., rubber) to provide a frictional surface, which is adapted to cooperate with the jaw face of fixed jaw 60 to grasp a portion of the tape between the two jaw faces.
  • a semi-yieldable material c g., rubber
  • movable jaw 61 is adapted to be separated from fixed jaw 60 by means of the coupling rod 67 which is joined at one end to a median portion of connecting arm 65, and at the other end to the armature of an actuating solenoid 68.
  • solenoid 68 When solenoid 68 is energized so that current iiows in its coil, the armature of the sole noid is drawn towards the center of the coil, and coupling rod 67 lifts cross arm 62 away from fixed jaw 60 to red lease the tape 10.
  • pivot pin 64 about which movable jaw 61 pivots is spaced away from the tape in a longitudinal direction between the fixed jaw 60 and the fabric belts 14, 15.
  • Tape 10 carries in longitudinally spaced relation a number of transverse code groups of indicia and a number of indicia 81 marking the position of each code group.
  • the various indicia 80 in each code group are separately scanned by a set of pick-ups 83a-83e (Fig.
  • the block designated represents an electronic photocomposer as disclosed in the application of Battle Klyce and F. Kim-ball Loomis, Serial No. 343,116, filed March 18, 1953, for Photocomposing Mechanism.
  • the photocomposer 100 is adapted, responsive to different code groups of indicia 80, to automatically perform operations associated with 'a printing apparatus, as, for example, the printing of characters on a carrier medium, the spacing of these char acter as printed, 'the creation of word spaces, and the shifting of the material ⁇ being printed to a new line or column.
  • the tape 10 will be in 'a state of high speed motion, in Ia direction coming out of the surface of the figure as shown in Figure 2.
  • This motion continues until a new code group, signified by a given row of indicia 80 in the tape 10, is swept past the pick-up head 84.
  • the information carried by thevarious indicia 80 is converted into a corresponding group of electric signals by the change in magnetic flux experienced by the pick-ups 83a-83e inclusive ⁇ as the indicia 80 move past them.
  • the indicium 81 is swept past the pick-up 85 to produce another electric signal, which, after a short delay by passage through a delay circuit 101, is applied to la multivibrator 102.
  • the multivibrator 102 which is of a conventional bistable type, is normally conditioned to supply a positive signal to the grid 103 of ya triode 104.
  • the multivibrator 102 Upon receiving the signal from delay circuit 101, the multivibrator 102 reverses its conductivity states to drive grid 103 negative with the result that tube 104 is cut oif.
  • the plate cathode path of tube 104 is connected in a loop circuit with the coil 106 of solenoid 68 and a source of operating voltage :and current (not shown). Normally current flows through coil 106 to maintain the armature 107 of the solenoid 6,8 in the center of the coil, solenoid when thus energized maintaining, through ⁇ coupling essere? an indiciurn ⁇ 31 sweeps pastt-pick-up 85, the ⁇ tape 10 is n caused to assume a state of dwell. ⁇ v
  • the photocomposer 100 Upon completion of one of its mentioned operations, the photocomposer 100 produces a second signal which also is applied to the multivibrator 102 ⁇ to again reverse the state of the same.
  • Multivibrator 102 again applies Ia positive signal to the -grid 103 of the ⁇ tube 104, and solenoid l68 is reenergized ⁇ to cause a ,corresponding release of tape by jaws 60 and 61.
  • tape 10 rapidly accelerates to a state .of ⁇ high speed motion, in which ⁇ state it continues until another code group of indicia ⁇ 80 4and lan indicium 81 sweeps past the pick-ups, ⁇ at which timethe ⁇ cycle just-described repeats itself.
  • the tape driving mechanism described may also be employed where (as shown inFigS) separate code groups of indicia 80a of either positive or negative ⁇ polarity are disposed along the length of a narrow magnetic tape 10a... In such ease only a single pick-up 85a need be utilized,.the pick-up 85a generating a sequence of signals as thevarious indicia 8l) ⁇ in larcode group sweeppast the same.
  • an electric signal is supplied from, for example, indicia counting means (not shown) to the multivibrator 102 to cause arrest of the tape motion as described.
  • Figure 4 shows a form of tape driving ⁇ mechanism advantageous in that only the indicia-free (upper) side of the magnetic tape is frictionallyA contacted, thus eliminating wear on the magnetic signal sensitive coating.
  • the illustration of Figure 4 represents a sectional view ltaken through the axis ⁇ of axroll 39b (identifiable withroll 39 t of Fig. 1) and looking in thedirection of tape motion.
  • the belt 15b has a lower straightaway sec-t tion extending rearwards of the ⁇ drawing plane in Figure 4, this section being adapted by frictionalengagement to ⁇ impart a ⁇ continuous driving force to a narrow tape 10b of the type :shown in Figure 3tape '10b being 4adapted to carry indiciaon the lowerside thereof.
  • a blower box 110 is disposed below the tape 10b; ⁇ The blower boxllt) has formed in the interior thereofan 'air chamber 111 and on the upper 4surface thereof a hemi-cylindrical ⁇ groove 112 aligned and coextensive with the 'straightaway sectionfof belt 15b. Air chamber 111 communicates with groove 112 by means of a narrow slot 113 running (rearward from the drawing plane in Fig. 4) the full length of the groove.
  • air chamber 111 In operation air chamber 111.by means of a port 114 Vreceives compressed air from an air supply (not shown). The air so received is forced from chamber 111 through slot 113 to raise the air pressure in ⁇ the space included ⁇ within groove 112. The increased air pressure in this space acts to blow tape ⁇ 10b with constant force against the straightaway section of belt 15b. A small clearance between the upper surface of blower box 110 and tape 10b (when in contact with belt 15b) permits air leakage to assurea ⁇ constant air iiow through the blower box.
  • Figure 5 shows in sectional View a mechanism ⁇ involv- Aing no frictional force, for imparting a continuous driving foi-certo a magnetic tape.V
  • a narrow tape 10c of the type shown in Figure 3 is fed past-a fixed guide Aarea of an extended portion of the tape.
  • Tape 10c is ⁇ led into and out of the vacuum box through slits 122 and 123 permitting only slight tape clearance. .Both slits 121 and 122 have faired approaches for either direction of approach ⁇ to the slits. w
  • Loop 76C is monitored for ⁇ size by a photosensitive device 125 (identifiable with device 77 lof Fig. l) so that when the bottom of loop 76C drops below the level of device 125, tape 10c is drawn to the right and out of the vacuum box 12,0 by cooperating idler and driver rolls 73a and 74a (identifiable with rolls 73 and '74 of Fig.
  • driver roll 74a being limited by conventional means (not shown) to rotate only in its appropriate feed direction,
  • the movement of roll 74a is controlled by device 125 in the mode previously described with respect to photo- ⁇ sensitive device 77' and roll 74 (Fig. l).
  • the tape driving mechanisms of Figures l, t and 5 are commonly related in that each distributes the driving force imparted to the tape over the Such force distribution is advantageous in that it permits impartment of an effective driving force to the tape while at the same time causing distribution over the mentioned area of the stress set up in the tape upon being arrested from motion.
  • the invention thus provides a novel and. highly effective motion control mechanismfor producing alternating states of motion anddwell in a strip ⁇ of elongated material, as, for example, a magnetic tape.
  • the motion control mechanism may ⁇ be gainfully employed with a record controlled utilization device in which the tape is advanced after completion of each operation bythe device and is stopped each time the device picks up a signal corresponding to a new group of indicia.
  • a utilization device adapted to perform a set of operations separately initiated by the scanning of correv sponding separate indicia spaced along an elongated magnetic tape, said device producing rst and second signals respectively upon ⁇ completion of each operation and upon scanning of a particularly characterized indicium, in combination with said device, distributed force drive means adapted to impart over the area of a lengthwise extending unwrapped portion of said tape a continuous pulling 2,saa,1 sv
  • a pair of jaws adapted for selectively freeing and restraininganother pulled portion of said tape to correspondingly vpermit and arrest said motion, and means responsive to said Vrst and second signals, respectively, for rendering said pair of jaws selectively operative to free and to restrain said other portion.
  • a utilization device adapted to perform a set of operations separately initiated by the scanning of corresponding separate indiciaspaced along an elongated magnetic tape, said device producing first and second signals respectively uponl completion of each-operation and upon scanning of a particularly characterized indicium, in cornbination with said device, distributed force drive means adapted to impart over the area of a lengthwise extending unwrapped portion of said tape a continuous pulling force urging motion thereof, a pair of jaws adapted for selectively freeing and restraining another pulled portion of said tape by mutual separation and closure of sm'd jaws, respectively, to correspondingly permit and arrest said motion, means responsive to said first and second signals,
  • a utilization device adapted to perform a set of operations separately initiated by the scanning of corresponding separate indicia spaced along an elongated magnetic tape, said device producing first and second signals respectively upon completion of each operation and upon scanning of a particularly characterized indicium
  • distributed force drive means adapted to impart over the area of a lengthwise extending unvvrapped portion of said tape a continuous force urging motion thereof
  • a fixed jaw and a pivoted jaw mutually adapted to selectively free and restrain another portion of said tapev respectively upon movement of said pivoted jaw to open and closed positions respectively with reference to said fixed jaw, said jaws by freeing and restraining said other portion correspondingly permitting and arresting said motion
  • a pivot for rendering said pivoted jaw movable to said open and closed positions said pivot being disposed at a location fixedly spaced normal to said tape and longitudinally between said fixed jaw and said means on the same side of said tape as said pivoted jaw, said pivot location and said force on said tape conjointly rendering said pivoted jaw self
  • a magnetic tape is adapted for signal transfer purposes to be intermittently moved in a predetermined direction in a predetermined path, said -ap-' posed between first and second parts of said path in which l said tape is adapted to form respective first and second slack loops, said first path part, path length and second path part being disposed in the order named in said direction, a magnetic signal transfer head disposed along the extent of said path at a mediate position in said path length to provide for signal transfer between said head and said tape when said tape moves past said head, tape drive means disposed at a position along the extent of said path between said head and the far end of said second slack loop, said drive means being adapted by a yieldable cooperation with an unwrapped portion of said tape at said last named position to impart to said unwrapped portion a continuous drive force exerted in said direction and trans' and said first slack loop, said jaws being adapted by alternately opening from each other and closing towards each other to alternately release said tape
  • Apparatus as in claim 4 in which at least one of said jaws is adapted to relatively open and close with the other jaw by movement of said one jaw about a pivot, and in 'which said pivot isl at a location which is spaced normally of said tape on the same side of said tape as said one jaw, and which is offset in'said direction from the place where said jaw faces are adapted to grasp said tape, said one jaw thereby being adapted to be held in closed position by the drive force transmitted through said tape when said j jaw faces arev closed thereon.
  • a magnetic tape is adapted for signal transfer purposes to be intermittently moved in a predetermined direction in a predetermined path
  • said ap.- paratus comprising, tape guide means establishing a configuration for said path in which a length thereof is disposed between first and second parts of said path in which said tape is adapted to form respective first and second slack loops, said first path part, path length and second path part being disposed in the order named in said direction, a magnetic signal transfer head disposed along ythe extent of said path at a mediate position in said path length to provide for signal transfer between said head and -said tape when said tape moves past said head, at least one continuous belt having a linearly-extended tapedriving surface tangential to said path at a position between said head and said second slack loop, said driving surface being adapted to be continuously urged to movement in said direction along said path, means to maintain an unwrapped portion of said tape at said last named position ⁇ in yieldable frictional cooperation with said drive
  • a magnetic tape is adapted for signal transfer purposes to be intermittently moved in a predetermined direction in a predetermined path
  • said apparatus comprising, tape guide means establishing a ⁇ configuration for said path in which a length thereof is disposed between first ⁇ and second parts of said path in which said tape is adapted to form respective first and second slack loops, said first path part, path length and second path part being disposed in the order named in said direction, a magnetic'signal transfer headdisposed along the extent of said path at a mediate position in said path length to provide for signal transfer between said head and said tape when said tape moves past said head, a pair of continuous belts having respective linearly-extended tape-driving surfaces opposite eachother and on opposite sides of said tape at a position along the extent of said length of .path between said head and said second slack loop, each of said surfaces being adapted to be continuously urged to movement in said direction along said path, and said surfaces being adapted to be in yieldable frictional cooperation with opposite sides
  • a magnetic tape is adapted for signal transfer purposes to be intermittently moved in a predetermined direction in a predetermined path
  • said apparatus comprising, tape guide means establishing a configuration for said path in which a length thereof is disposed between first and second parts of said path in which said tape is adapted to form respective rst and second slack loops, said iirst path part, path length and second path part being disposed in the order named in said direction, a magnetic signal transfer head disposed along the extent of said path at a mediate position in said path length to provide for signal transfer between said head and said tape when said tape moves past said head, at least one continuous belt having a linearlyextended tape driving surface tangential to said path at a position between said head and said second slack loop, said driving surface being adapted to be continuously urged to movement in said direction along said path, pneumatic means adapted by generating a ow of air to produce on an unwrapped portion of said tape at said last named position an air pressure
  • a magnetic tape is adapted for signal transfer purposes to be intermittently moved in a predetermined direction in a predetermined path
  • said apparatus comprising, tape guide means establishing a configuration for said path in which a length. thereof is disposed between rst and second parts of said path in which said tape is adapted to form respective lirst and second slack loops, said rst path part, path length and second path part being disposed in the order named in said direction, a magnetic signal transfer head disposed along the extent of said path at a mediate position in said path length to provide for signal transfer between said head and said tape when said tape moves past said head, means to restrain said tape from being drawn into said second slack loop from the side thereof away from said path length, pneumatic means to produce on the inner side of said second slack loop a cushion of air at a pressure which is continuously greater than that of the air in the region on the outer side of said last named loop to thereby tend to continuously enlarge said second sl

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US356771A 1953-05-22 1953-05-22 High speed tape reader mechanism Expired - Lifetime US2883187A (en)

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Application Number Priority Date Filing Date Title
US356771A US2883187A (en) 1953-05-22 1953-05-22 High speed tape reader mechanism

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Application Number Priority Date Filing Date Title
US356771A US2883187A (en) 1953-05-22 1953-05-22 High speed tape reader mechanism
GB27442/54A GB746734A (en) 1954-09-22 1954-09-22 Improvements in or relating to tape driving mechanism

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US (1) US2883187A (fr)
CH (1) CH319384A (fr)
FR (1) FR1112403A (fr)
GB (1) GB746734A (fr)
IT (1) IT520797A (fr)
NL (1) NL112141C (fr)

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US3515328A (en) * 1968-01-29 1970-06-02 Smith R P M Corp Controlled web length in-feed for rotary printing press

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GB915739A (en) * 1960-03-14 1963-01-16 Ncr Co Record media transport mechanism
IT1184341B (it) * 1984-03-29 1987-10-28 Hauni Werke Koerber & Co Kg Dispositivo per alimentare materiale di rivestimento ad involucro ad una confezionatrice,specialmente confezionatrice per sigarette

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US1951844A (en) * 1930-12-12 1934-03-20 Rose Brothers Ltd Apparatus for severing wrappers from webs and feeding said wrappers to package-making machines
US1954098A (en) * 1931-05-01 1934-04-10 Frank T Powers Paper coating machine
US2004129A (en) * 1932-01-08 1935-06-11 Potdevin Machine Co Apparatus for handling strip material
US2122710A (en) * 1933-06-24 1938-07-05 Paul W Bidwell Counting device
US2086554A (en) * 1934-06-12 1937-07-13 Frederick W Hoorn Film feeding system for sound motion picture apparatus
US2246968A (en) * 1939-02-17 1941-06-24 Autographic Register Co Typewriting machine
US2400447A (en) * 1940-04-25 1946-05-14 American Mach & Foundry Web-registering device
US2378371A (en) * 1943-06-30 1945-06-12 Ibm Transcribing apparatus
US2422651A (en) * 1943-12-31 1947-06-24 Carnegie Illinois Steel Corp Multiple loop control
US2466686A (en) * 1946-03-22 1949-04-12 John R Connelly Automatic target machine
US2548136A (en) * 1946-06-22 1951-04-10 Champlain Company Inc Register control means for continuous and intermittent web feed mechanism
US2480781A (en) * 1947-07-11 1949-08-30 Continental Can Co Means for controlling the feeding of metal coil strip to scroll shears or the like
US2574392A (en) * 1948-08-20 1951-11-06 William C Huebner Roll film camera attachment
US2560919A (en) * 1949-03-22 1951-07-17 Rca Corp Intermittent film advancing mechanism utilizing air pressure
US2601347A (en) * 1949-06-24 1952-06-24 Vitarama Corp Motion-picture apparatus with pneumatic pulldown for film
US2714842A (en) * 1951-01-11 1955-08-09 Frederick J Hooven Photographic type composition
US2699702A (en) * 1953-04-28 1955-01-18 Cuber Eduardo Puchades Motion-picture projector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3515328A (en) * 1968-01-29 1970-06-02 Smith R P M Corp Controlled web length in-feed for rotary printing press

Also Published As

Publication number Publication date
FR1112403A (fr) 1956-03-14
GB746734A (en) 1956-03-21
CH319384A (fr) 1957-02-15
NL112141C (fr) 1965-12-15
IT520797A (fr)

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