US3256969A - High speed serial printing device - Google Patents

High speed serial printing device Download PDF

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Publication number
US3256969A
US3256969A US330473A US33047363A US3256969A US 3256969 A US3256969 A US 3256969A US 330473 A US330473 A US 330473A US 33047363 A US33047363 A US 33047363A US 3256969 A US3256969 A US 3256969A
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Prior art keywords
typecarrier
selecting
actuators
shaft
pair
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US330473A
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English (en)
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Bretti Franco
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Telecom Italia SpA
Olivetti SpA
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Olivetti SpA
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L17/00—Apparatus or local circuits for transmitting or receiving codes wherein each character is represented by the same number of equal-length code elements, e.g. Baudot code
    • H04L17/16—Apparatus or circuits at the receiving end
    • H04L17/26—Apparatus or circuits at the receiving end using aggregate motion translation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J7/00—Type-selecting or type-actuating mechanisms
    • B41J7/50—Type-face selected by combinations of two movements of type carrier
    • B41J7/52—Type-face selected by combinations of two movements of type carrier by combined rotary and sliding movement
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L17/00—Apparatus or local circuits for transmitting or receiving codes wherein each character is represented by the same number of equal-length code elements, e.g. Baudot code
    • H04L17/16—Apparatus or circuits at the receiving end
    • H04L17/24—Apparatus or circuits at the receiving end using mechanical translation and type-head printing, e.g. type-wheel, type-cylinder

Definitions

  • this invention relates to a selecting device adapted to be controlled by the combinations of a predetermined code formed of a set of binary code units and comprising a set of selecting members each one associated with a corresponding unit of said code and adapted to be located in either one of a pair of opposite positions, means mutually connecting said selecting members and movable therewith for positioning said typecarrier according to the sum of their movements, and a pair of common actuators for said selecting members.
  • each common actuator is moved by the operating mechanism at alternate cycles through an effective stroke in a predetermined constant direction, each actuator being returned idly while the other actuator effects its effective stroke.
  • each selecting member under the control of the corresponding unit of code must be connected with the actuator which during this cycle will be moved through its effective stroke.
  • the selecting members are moved by said actu ators against the urge of a spring, whereby after being so moved they must be locked by suitable locking means.
  • the selective operation .for returning said selecting members is too heavy, while the return thereof causes undesired rebounds.
  • the primary object of the present invention is to provide a high speed serially printing device obviating all the above disadvantages.
  • Another object is to provide a printing device having a typecarrier adapted to remain in the reachedposition after each imprint.
  • Still another object is to provide a printingdevice hav- 3,256,969 Patented June 21, 1966 said actuators according to the corresponding code unit to cause said selecting members to be positively displaced,
  • a further object is to provide a printing device having a typecarrier adapted to be exactly and positively positioned both angularly and longitudinally.
  • Still a further object is to provide a printing device wherein the position reached by the typecarrier is automatically checked before each imprint.
  • FIG. 1 is a perspective partial viewof a high spec serial. printing device according to the invention taken lookng at machne from the front and the left;
  • FIG. 2 is a horizontal sectional view of a detail of FIG. 1;
  • FIG. 4 is a right hand longitudinal partial sectional view of the selecting device of the printing device of FIG. 1;
  • FIG. 5 is a sectional view taken on the line VV of FIG. 4;
  • FIG. 6 is the longitudinal view of FIG. 4 in an operated position
  • FIG. 7 is a longitudinal view of a modified form of the selecting device of FIG. 4;
  • FIG. 8 is a circuit diagram for controlling the device of FIG. 7.
  • the numeral 96 indicates a cylindrical typecarrier provided with a plurality of types and selectively positionable according to the type to be printed.
  • the types are arranged in six rows each one of eight types.
  • the typecarrier 96 is axially slidable on a first transverse fluted shaft 97 and is bodily rotatable therewith.
  • the shaft 97 is provided with two cylindrical ends rotatably mounted on the machine frame.
  • a pinion 98 secured to the shaft 97 is engaged by a rack 99 adapted to be selectively moved according to the combinations of a predetermined code in a manner which will be disclosed later.
  • Means are provided for movably mounting the typecarrier 96 on a support or support member 100 which may be referred to as a first'member and which is transversely movable step by step in a manner to be disclosed.
  • Said means comprises a rod 101 secured to the support or support member 100, also referred to as a first member, and a block or second member 102 which is slidable on the rod 101.
  • the block 102 is provided with two bored projections 103 slidable on the shaft 97 and adapted to dis-' place the typecarrier 96 transversely.
  • first screwed hub 104 coaxial with a second transverse fluted shaft 108 provided with two cylindrical ends rotatable on the machine frame.
  • pinion 109 secured to the shaft 108 is engaged by a rack 111 adapted to be selectively moved according to the code combinations in a manner similar to the rack 99.
  • the screwed hub 104 (FIG. 2) cooperates with a first screwed portion 106 of an element 107 slidably mounted on the shaft 108 and bodily rotatable therewith.
  • a second hub 113 provided on the block 102 is coaxial with the shaft 108 and is screwed in a direction opposite to the hub 104.
  • the screwed hub 113 cooperates with a second screwed portion '112 of the element 107.
  • a non-screwed hub portion 114 of the block 102 is adapted to telescopically cooperate with the outward surface of the hub 104.
  • the printing device comprises also a hammer 116 schematically shown in FIG. 1, which is adapted to cooperate with the typecarrier 96, but is normally held distanced therefrom by a spring not shown in the drawing.
  • the hammer 116 is longitudinally slidable on a plate 117 in turn slidably mounted on two transverse shafts 118 and 119.
  • the 'plate 117 is transversely movable with the support 100 in a manner to be described;
  • the hammer 116 FIG. 3 is a transverse sectional view of another detail -is operable by an armature 121 of an electromagnet 122 carried by the plate 117 and adapted to be energized in a known manner.
  • the paper is vertically fed in a known manner.
  • the conventional ink ribbon is horizontally fed by known means he tween the paper and the hammer 116 in order not to,
  • the printing device is operated by a cyclically operating mechanism comprising a main shaft 123 adapted to be rotated counterclockwise through 180 degrees for each machine cycle by means of a belt 124 and a pulley 126 secured thereto.
  • a bevel gear 127 secured to the shaft 123 engages a similar gear 128 secured to a longitudinal shaft 129 having a pair of knife-members 131 and 132 adapted to engage the toothed wheels 133, and 134 respectively, at the instant of the operation of the hammer 116.
  • the members 131 and 132 are rotatable each one in a plane perpendicular to the corresponding wheel 133, and 134 respectively.
  • Means are provided for indicating the position of the typecarrier 96, said means comprising a pair of disks 136, 137, secured to the right end of the shaft 97 and 108, respectively, and notched according to the code combinations corresponding to each circumferential position of the corresponding shaft.
  • Each one of the two disks 136 and 137 is adapted to be sensed by a set of photodiodes 139 (FIG. 3), which through a known circuit, conditions the hammer 116 for operation when the notches sensed on the disks 136 and 137 correspond to the code combination which controlled the rotation of the shafts 97 and 108.
  • the transverse step by step movement of the first member or support 100 and the hammer bearing plate 117 is simultaneously effected under the control of a cam 141 of the main shaft 123.
  • a lever 142 pivoted at 143 is normally urged by a spring 144 to contact the cam 141 and is provided with a bent lug 146 adapted to cooperate with a latch 147 linked to a lever 149 pivoted at 150 and connected to the latch 147 by a spring 151.
  • the latch 147 is further connected to the armature of an electromagnet 148 normally adapted to be energized substantially simultaneously with the electromagnet 122 and also to be energized in a known manner under the control of the code combination corresponding to the letter space.
  • a lug 152 of the lever 149 is adapted to control a clutch known per se and generically indicated by the numeral 153.
  • the clutch 153 is adapted to connect a shaft 154 with the main shaft 123 for a cycle of 90 degrees.
  • a worm 156 engaging a gear 157 secured to a shaft 158.
  • Another worm 159 secured to the shaft 158 engages a gear 161 rotatable on a bored shaft 162 and secured to a ratchet wheel 163.
  • the support 180 and the hammer plate 117 are connected to a pair of cables 174 and 169 respectively, which are winding on a pair of similar pulleys 176 and 167 secured to the shaft 168, and are unwinding from a second pair of similar pulleys 177 and 171 secured to a shaft 172.
  • This shaft is urged clockwise by a spiral spring, generically indicated by the numeral 173.
  • a rod 178 Slidable within the bored shaft 162 is a rod 178 rearwardly contacting the tooth 165.
  • the rod 178 co operates forwardly with a lever 179 pivoted at 181 and engaging a forked end of a slide 182 slidably mounted on a stationary pin 183 and into a slot 186 of a plate 187.
  • the plate 187 is connected at right to the armature of an clectrornagnet 197 adapted to be energized under the control of a code combination for controlling the return to the left of the support and the plate 117.
  • the plate 187 is connected at left to a transverse rod 198 slidable on the machine frame and provided with a pair of margin control members 199 and 200.
  • a projection 201 of the plate 117 is transversely slida-ble on the rod 198.
  • the printing device operates as follows.
  • the main shaft 123 is cyclically rotated counterclockwise through degrees and by means of the bevel gears 127 and 128 synchronously rotates the shaft 129 clockwise.
  • various machine cycles are conditioned by a suitable record controlled transmitter or by an electronic calculating apparatus, whereby the shafts 123 and 129 are rotated continuously through a series of cycles.
  • the shaft 129 disengages the knife-members 131 and 132 from the wheels 133 and 134, whereby the shafts 97 and 108 are released.
  • T hereafter the racks 99 and 111 are selectively displaced under the control of the code combination corresponding to the type to be printed, in the manner which will be described later.
  • the rack 99 through the pinion 98 selectively rotates the fluted shaft 97 together with the typecarrier 96, which locates the typeto be printed on the printing line.
  • the rack 111 through the pinion 109 selectively rotates the fluted shaft 108 together with the element 107 (FIG. 2).
  • the cooperation of the screwed portion 106 with the screwed hub 104 causes the element 107 to be axially displaced with respect to the stated first member or support 100
  • the cooperation of the screwed portion 112 with the screwed hub 113 causes the stated second member or block 102 to be displaced with respect to the element 107.
  • the typecarrier 96 which is axially displaced by the block 102, is thus displaced with respect to the support 100 through the sum of the axial displacement of the element 107 with respect to the hub 104 and of the displacement of the block 102 with respect to the element 107, whereby the rotation of the shaft 108 required for causing a predetermined axial displacement of the typecarrier 96 is reduced.
  • the typecarrier 96 through its axial displacement locates the type to be printed on the printing point in front of the hammer 116 (FIG. 1).
  • the cam 141 of the main shaft 123 reciprocates the lever 142. Since in this first cycle the latch 147 is disengaged from the lug 146, it is not affected by the lever 142.
  • the knife-members 131 and 132 reengage the toothed wheels 133 and 134, thus exactly and positively adjusting the angular position of the shafts 97 and 108.
  • the photodiodes 139 (FIG. 3) sense the disks 136 and 137 and through the known circuit effects the comparison of the code combination represented by the notches sensed by the photodiodes 139 and the code combination which controlled the rotation of the shafts 97 and 108 and have been stored in a suitable storing device. If the two code combinations are equal, that is if the two shafts have been correctly positioned, said circuit causes the electromagnet 122 to be energized. Then the armature 121 operates the hammer 116 which effects the imprint of the selected type on the paper.
  • the electromagnet 148 is energized substantially simultaneously with the electromagnet 122 and causes the latch 147 to engage the lug 146 of the lever 142. During the next following cycle of the shaft 123, the cam 141 through the lever 142 draws the latch 147 rearwards.
  • the lever 149 is thus rocked clockwise, whereby the lug 152 releases the clutch 153, which is engaged for one cycle of 90 degrees.
  • the shaft 154 is now rotated counterclockwise and through the worm 156, gear 157, shaft 158 and worm 159, rotates the gear 161 counterclockwise.
  • the ratchet wheel 163, through the' tooth 165 rotates the pulley 167 together with the shaft 168 and the pulley typecarrier 96 for the next type to be printed and will be finished before the hammer 116 is operated for said next type, whereby the imprint is effected when the typecarrier 96 and the support 100 are transversely standing.
  • the leftward movement of the support 100 and the plate 117 may be effected when they are in any transverse position through a code combination adapted to cause the electromagnet 197 to be energized. Then the armature of electromagnet 197 displaces the plate 187 rightwards in a similar manner as in the above case. In any case the leftward movement of the support 100 and the plate 117 is stopped by the projection 201 encountering the member 200.
  • the selecting device for selectively rotating the shaft 97 is described hereinafter. Since the selecting device for selectively rotating the shaft 108 is quite similar to that for the shaft 97, it does not need to be described.
  • the shafts 97 and 108 are each one selectively rotated by a corresponding selecting device adapted to be controlled by. the combinations of a predetermined code formed of a set of binary code units.
  • Each selecting device comprises a set of selecting members each one associated with a corresponding unit of said binary code and adapted to assume either one of a pair of opposite positions corresponding to the two conditions of each unit of said code.
  • said code is formed ofthree binary units represented for instance of signals of two opposite polarities.
  • Said set of selecting members is formed of three similar selecting levers, generically indicated by the '6 numeral 24 (FIGS. 4 and 5), each one pivoted on a stationary hub 29 and adapted to assume either a right position defined by a stop member 30, or a left position defined by another stop member 31 (see the two lateral bails 24 on FIG. 6).
  • Each lever 24 comprises a pair of arms 26 and 27 (FIG. 5) connected by a cross portion 28, the arm 26 being provided with a cam slot 23 having two end portions 32 and 33 concentric with the corresponding hub 29.
  • the selecting device comprises also means mutually connecting the selecting levers 24 (FIG. 4) and movable therewith for positioning the typecarrier 96 according to the sum of their movements.
  • Said connecting means are formed of three similar shifting levers 12, 13 and 14, each one fulcrumed on the pivot 19 engaging the cam slot 23 of the corresponding selecting lever 24 and mounted for radial movement with respect to the hub 29 in a vertical notch 21 provided on a common stationary plate 22, whereby the pivots 19 when engaging the end portions 32 and 33 of the cam slot 23 cannot displace the corresponding levers 24.
  • the levers 12, 13 and 14 are provided each one with twoarms of different length and are connected as a chain with the short arm of each shifting lever connected through a link 16 to the long arm of the subsequent shifting lever.
  • the extreme lever 14 is connected through another link 16 to a stationary pivot 18, while the extreme lever 12 is connected at 17 to the rack 99 and therefore, through the pinion 98 and the shaft 97 to the typecarrier 96.
  • the selecting device comprises a pair of common actuators or slides 43 'and 44 slidably mounted in two stationary comb plates 46 and connected through a link 49, and 51 respectively, to a pair of opposite arms of a lever 52 fulcrumed at 53.
  • the lever 52 is connected through a slot 54 to a pin 56 of a crank lever 57 secured to a shaft 58.
  • This shaft is connected to themain shaft 123 (FIG. 1) of the machine in a known manner as to be rotated counterclockwise 360 for each cycle of the main shaft 123.
  • each hub 29 Slidably mounted within each hub 29 is a rod 34 (FIG. 5) forming the common armature of a pair of electromagnets 35 and 36 each one adapted to be energized by the code unit having a corresponding polarity.
  • Each rod 34 is provided with the groove 37 engaged by one end of a lever 38, which through a notch 39 of the hub 29 is extended downwards.
  • the lever 38 is fulcrumed on a pivot 41 secured to the cross portion 28 of the corresponding lever 24.
  • Each slide 43 and 44 is provided with a set'of trailing elements or slots 47, and 48 respectively, each one associated with one of the levers 24.
  • Each slot 47 or 48 is adapted to be engaged by an engaging element or pin 42 transversely slidable on the two arms 26 and 27 and having a groove engaging the other end of the associated lever 38.
  • the slots 47 and 48 are normally mutually facing and their length corresponds to the distance between the two positions of the lever 24.
  • the lower edge of the slots 47 and 48 is slightly curved to all-ow the pin 42 to rock together with the corresponding levers 24 during the longitudinal movementof the slides 43 and 44 into the comb plates 46.
  • the selecting device of FIGS. 4, 5 and 6 operates as follows.
  • the signal of each binary code unit of a predetermine combination is sent in a known manner to the corresponding electromagnet 35 or 36 (FIG. 5) according to the polarity of said signal.
  • the rods 34 attracted by the electromagnets 35 through the lever-s 38 cause the.
  • the shaft 58 is also rotated counterclockwise.
  • the crank lever 57 through the pin 56 reciprocates the lever 52 counterclockwise, whereby the slide 43 is moved rightwards and the slide 44 is moved leftwards in the location of FIG. 6 through a forward stroke.
  • the slide 44 rocks clockwise the levers 24 located at right and whose pins 42 entered the slots 48 (in FIG. 6 the two extreme levers 24), while the slide 43 rocks counterclockwise the levers 24 located at left and whose pins 42 entered the slots 47 (in FIG. 6 the central lever 24).
  • the levers 24 located at right and whose pins 42 entered the slots 47, as well as the levers 24 located at left and whose pins 42 entered the slots 48 are not affected by the slides 43 and 44.
  • the actuators 43 and 44 are simultaneously positively reciprocate-d by the shaft 58 in mutual opposite directions through a forward stroke, which is the effective stroke for displacing the levers 24. Furthermore, it is clear that the pins 42 are adapted to selecitvely engage the corresponding selecting members 24 with one of the actuator-s according to the corresponding code unit to cause said selecting members to be positively displaced. Finally it is clear that the slots 47 and 48, due to their length, are adapted to render the engaging means 42 ineffective when the corresponding selecting member is located in each one of the two positions and the associated code unit presents the corresponding condition, that is when the lever 24 is not to be moved.
  • Each lever 24 moves the corresponding pivot 19 downwards if the lever has been rocked counterclockwise, or upwards if it has been rocked clockwise.
  • the rack 99 is moved by the chain of shifting levers 12, 13 and 14 according to the sum of the movements of the pivots 19.
  • the rack 111 is simultaneously positioned in a similar manner, whereby the typecarrier 96 is angularly and axially positioned according to the type to be printed. Thereupon the hammer 116 (FIG. 1) is operated in the above described manner.
  • the shaft 58 terminates its counterclockwise revolution and returns the lever 52 clockwise from the position of FIG. 6 to the position of FIG. 4.
  • the slides 43 and 44 are now caused by the lever 52 to effect the return stroke but, due to the slots 47 and 48, the selecting levers 24, the shifting levers 12, 13 and 14 and the typecarrier 96 remain in the reached position, whereby the return stroke of the slides 43 and 44 is ineffective.
  • the typecarrier 96 will be positioned departing from the position now reached.
  • the slides 43 and 44 are simultaneously positively reciprocated by the operating mechanism in mutual opposite directions between a first and a second location of a pair of locations associated with the two positions of the levers 24. More particularly, the slide 43 is moved from left to right and the slide 44 is moved from right to left during a predetermined cycle and oppositely during the next following cycle. Each slide 43 and 44 is thus adapted to displace the levers 24 to the one or the other of the two positions at alternate cycles.
  • each slide 43, 44 is connected to a corresponding link 60, 61 operable by corresponding eccentrics 62, 63.
  • the two eccentrics 62 and 63 are secured in a mutually opposite angular relationship to a main shaft 64 adapted to be rotated through 180 degrees during each cycle of the shaft 123 (FIG. 1).
  • Each slide 43 and 44 (FIG. 7) is linked on two lever-s 68, and 69 respectively, which are fulcrumed on two stationary pivots 71 and are as long as the distance of each pin 42 from the fulcrum of the corresponding lever 24.
  • Each slide 43 and 44 is provided with a set of trailing elements formed of circular holes 66, and 67 respectively, each one associated with one of the levers 24.
  • Each hole 66 or 67 is adapted to be engaged by the pin 42 of the associated lever 24.
  • Shifting means are provided for inverting at each cycle the action of each code unit on the connecting means 42 by inverting the polarities of the electromagnets 35 and 36.
  • said shifting means comprises a pair of disks 72 and 73 secured to the shaft 64 and provided with a notch 74 located in a mutual opposite angular relationship, a lampv 76 (FIG. 8) being located between the two disks normally in front of one of the two notches 74 (in FIG. 8 in front of the notch 74 of the disk 72).
  • a pair of photodiodes 77 and 78 are adapted to sense the notch 74 of the corresponding disks 72 and 73 and to send alternately a signal to a flip-flop 79 provided with two outputs 81 and 82.
  • Each flip-flop 83 is provided with two outputs 84 and 85. Connected to each flip-flop 83 are a pair of AND gates 86 and 87 connected through an OR gate 88 to the electromagnet 35, and a pair of AND gates 89 and 90 connected through another OR gate 91 to the electromagnet 36.
  • the AND gates 86 and 89 are energized by the signal of the output 84 of the flip-flop 83, and by the signal of the output 81, and 82 respectively, of the flip flop 79.
  • the AND gates 87 and 90 are energized by the signal of the output of the flip-flop 83 and by the signal of the output 82, and 81 respectively, of the flip-flop 79.
  • the selecting device of FIGS. 7 and 8 operates as follows.
  • the photodiode 77 senses the notch 74 of the disk 72 and causes the output 81 of the flip-flop 79 to be energized. Consequently a positive code unit is sent by the flip-flop 83 through the output 84, the gate 86 and the gate 88 to the electromagnet 35. On the contrary, a negative code unit is sent through the output 85, the gate and the gate 91 to the electromagnet 36.
  • the rods 34 (FIG.
  • the photodiode 78 senses the notch 74 of the disk 73 and causes the output 82 of the flip-flop 79 to be energized. Consequently a positive code unit is now sent by the flip-flop 83 through the output 84 and the gates 89 and 91 to the electromagnet 36, whereas a negative code unit is sent through the output 85 and the gates 87 and 88 to the electromagnet 35.
  • the polarity of the two electromagnets 3S and 36 is inverted, while the slides 43 and 44 are moved oppositely with respect to the preceding cycle toward the position of FIG. 7.
  • the levers 24 are now moved counterclockwise by the slide 44 and the clock- 9 wise by the slide 43, in a manner similar to that above described.
  • a high speed serial printing device having a typecarrier provided with a plurality of types and selectively positionable according to the type to be printed, a cyclically operating mechanism, and a selecting device adapted to be controlled by the combinations of a predetermined code formed of a set of binary code units, the combination comprising: i
  • engaging means for selectively engaging said selecting members with one of said actuators according to one of said conditions and with the other of said actuators according to the other of said conditions to cause said selecting members to be positively displaced into either'one of said positions
  • a high speed serial printing device having a typecarrier provided with a plurality of types and selectively positionable according to the typeto be printed, a cycl1- cally operating mechanism, and a selecting device adapted to be controlled by the combinations of a predetermined code formed of a set ofbinary code units, the combination' comprising:
  • i (b) means mutually connecting said selecting members and movably therewith for positioning said typecarrier according to the sum of their movements
  • a high speed serial printing device having a typecarrier provided with a plurality of types and selectively positionable according to the type to be printed, a cyclicallyoperating mechanism, and a selecting device adapted to be controlled by the combinations of a predetermined code formed of a set of binary code units, the combination comprising:
  • a high speed serial printing device having a'typecarrier provided with a plurality of types and selectively positionable according to the type to be printed, a cyclically operating mechanism, and a selecting device adapted to be controlled by the combinations of a predetermined code formed of a set of binary code units, the combination comprising:
  • said holes being elongated to render the engagement of said pins ineffective.
  • a high speed serial printing device having a typecarrier provided with a plurality of types and selectively positionable according to the type to be printed, a cyclically operating mechanism, and a selecting device adapted to be controlled by the combinations of a predetermined code formed of a set of binary code units, the combination comprising:
  • a high speed serial printing device having a typecarrier provided with a plurality of types and selectively positionable according to the type to be printed, a cyclically operating mechanism, and a selecting device adapted to be controlled by the combinations of a predetermined code formed of a set of binary code units, the combination comprising:
  • each slot being associated with one of said selecting members, the length of each one of said slots corresponding to the distance between said one pair of positions, the slots of one actuator normally facing the slots of the other actuator,
  • a high speed serial printing device having a typecarrier provided with a plurality of types and selectively positionable according to the type to be printed, a cyclically operating mechanism, and a selecting device adapted to be controlled by the combinations of a predetermined code formed of a set of binary code units, the combination comprising,
  • a character selecting device adapted to be controlled by the combinations of a predetermined code formed of a set of binary code units, the combination comprising:
  • a high speed printing device having a typecarrier provided with a plurality of types and selectively positionable according to the type to be printed, a cyclically operating mechanism, and a selecting device adapted to ⁇ be controlled by the combinations of a predetermined code formed of a set of binary code units, the combination comprising:
  • each hole of each one of said actuators being normally placed in front of the pin of the corresponding selecting member if this latter is located in the position associated with the location of said actuator, said holes being elongated to render the engagement of said pins ineffective,
  • an operating shaft comprised in said operating mechanism and adapted to be rotated through 180 degrees for each cycle
  • a high speed printing device comprising a cylindrical typecarrier provided wtih types arranged in rows and columns and being axially movable along a printing line, a first member adapted to be moved step by step parallel to said printing line, a hammer coneertedly stepped with said tfirst member and operable for printing by cooperating with said types on said typecarrier, and selecting means for rotatively and axially positioning said typecarrier according to the particular required type to be positioned at the hammer, the combination therewith comprising,
  • a high speed printing device comprising a cylin- 7 drical typecarrier provided with types arranged in rows .for angularly and axially positioning said typecarrier according to the type to be printed, the combination comprising:
  • a high speed printing device comprising a cylindrical typecarrier provided with types arranged in rows and columns, a support for said typecarrier adapted to be moved transversely step by step, a hammer transverse- 1y movable with said support and operable for cooperating with said typecarrier, and a selecting device for angularly and axially positioning said typecarrier according to the type to be printed, the combination comprising:
  • a high speed printing device comprising a cylindrical typecarrier provided with types arranged in rows and columns, a support for said typecarrier adapted to be moved transversely step by step, a hammer transversely movable with said support and operable for cooperating with said typecarrier, and a selecting device for angularly and axially positioning said typecarrier according to the type to be printed, the combination comprising:
  • a high speed printing device comprising a cylindrical typecarrier provided with types arranged in rows and columns, a support member adapted to be moved transversely step by step, a hammer transversely movable with said member and operable for cooperating printingly with said typecarrier, and a selecting device for angularly and axially positioning said typecarrier in reference to said member according to the type to be printed, the combination comprising:
US330473A 1962-12-17 1963-12-13 High speed serial printing device Expired - Lifetime US3256969A (en)

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IT2536862 1962-12-17
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Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3310147A (en) * 1965-07-12 1967-03-21 Clary Corp Wheel striking data printer
US3353648A (en) * 1965-08-31 1967-11-21 Fujitsu Ltd Typewriter with typewheel and hammer mounted on movable carriage
US3354818A (en) * 1964-10-16 1967-11-28 Philips Corp Electro-mechanical serial printers
US3366214A (en) * 1964-02-20 1968-01-30 Siemens Ag Code comparison system for setting a type roller
US3371766A (en) * 1966-07-18 1968-03-05 Internat Telephone & Telegraph Printing apparatus
US3374873A (en) * 1964-02-17 1968-03-26 Codamite Corp Printing apparatus employing bidirectional stepping motors to position type member
US3397766A (en) * 1966-03-01 1968-08-20 Hasler Ag Printer having plural hammers and a single hammer actuating means
US3399274A (en) * 1964-10-15 1968-08-27 Teletype Corp Page printer
US3467233A (en) * 1967-10-19 1969-09-16 Burroughs Corp Mechanism for positioning a spheroidal type head to present a selected type to a print position
US3482511A (en) * 1966-07-20 1969-12-09 Kienzle Apparate Gmbh Printing arrangement with tabulated printing cylinder
US3610390A (en) * 1968-06-21 1971-10-05 Frederick P Willcox Compact high-speed teleprinter mechanism
US3625331A (en) * 1968-06-20 1971-12-07 Triumph Werke Nuernberg Ag Type head positioning apparatus
US3666070A (en) * 1970-06-29 1972-05-30 Ibm Differential mechanism for positioning a type character on a type element
US3677384A (en) * 1970-12-16 1972-07-18 Triumph Werke Nuernberg Ag Mechanism for positioning single element type carriers
US3696906A (en) * 1970-03-25 1972-10-10 Olivetti & Co Spa Character selecting device for a printing mechanism
US3795299A (en) * 1971-03-24 1974-03-05 Suwa Seikosha Kk Method of positioning drum for precision printing
US3872959A (en) * 1971-04-01 1975-03-25 Wang Laboratories Positioning typewriter
US3884338A (en) * 1968-09-05 1975-05-20 Siemens Ag Device for adjustment and line-by-line movement of a type body in a type printing device
US3926293A (en) * 1974-12-19 1975-12-16 Facit Ab Dual carriage impact printer with belt drive
US3927753A (en) * 1969-08-22 1975-12-23 Mite Corp Solenoid system for moving a type member
US4023665A (en) * 1968-11-04 1977-05-17 Boyden Robert E Power driven typewriter
US4274102A (en) * 1977-09-08 1981-06-16 Victor Lum Multi-element writing instrument
USRE30942E (en) * 1979-04-23 1982-05-25 Tracor, Inc. Printing apparatus employing bidirectional stepping motors to position type member
US20050051208A1 (en) * 2003-06-17 2005-03-10 Mount Robert L. System for transferring heat in a thermoelectric generator system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2080966A (en) * 1934-07-19 1937-05-18 Translating mechanism for printing
USRE24131E (en) * 1948-02-17 1956-03-20 beattie
US2928896A (en) * 1955-08-25 1960-03-15 Dirks Gerhard High speed printing devices
US3042174A (en) * 1959-04-24 1962-07-03 Mite Corp Positioning printer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2080966A (en) * 1934-07-19 1937-05-18 Translating mechanism for printing
USRE24131E (en) * 1948-02-17 1956-03-20 beattie
US2928896A (en) * 1955-08-25 1960-03-15 Dirks Gerhard High speed printing devices
US3042174A (en) * 1959-04-24 1962-07-03 Mite Corp Positioning printer

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3374873A (en) * 1964-02-17 1968-03-26 Codamite Corp Printing apparatus employing bidirectional stepping motors to position type member
US3366214A (en) * 1964-02-20 1968-01-30 Siemens Ag Code comparison system for setting a type roller
US3399274A (en) * 1964-10-15 1968-08-27 Teletype Corp Page printer
US3354818A (en) * 1964-10-16 1967-11-28 Philips Corp Electro-mechanical serial printers
US3310147A (en) * 1965-07-12 1967-03-21 Clary Corp Wheel striking data printer
US3353648A (en) * 1965-08-31 1967-11-21 Fujitsu Ltd Typewriter with typewheel and hammer mounted on movable carriage
US3397766A (en) * 1966-03-01 1968-08-20 Hasler Ag Printer having plural hammers and a single hammer actuating means
US3371766A (en) * 1966-07-18 1968-03-05 Internat Telephone & Telegraph Printing apparatus
US3482511A (en) * 1966-07-20 1969-12-09 Kienzle Apparate Gmbh Printing arrangement with tabulated printing cylinder
US3467233A (en) * 1967-10-19 1969-09-16 Burroughs Corp Mechanism for positioning a spheroidal type head to present a selected type to a print position
US3625331A (en) * 1968-06-20 1971-12-07 Triumph Werke Nuernberg Ag Type head positioning apparatus
US3610390A (en) * 1968-06-21 1971-10-05 Frederick P Willcox Compact high-speed teleprinter mechanism
US3884338A (en) * 1968-09-05 1975-05-20 Siemens Ag Device for adjustment and line-by-line movement of a type body in a type printing device
US4023665A (en) * 1968-11-04 1977-05-17 Boyden Robert E Power driven typewriter
US3927753A (en) * 1969-08-22 1975-12-23 Mite Corp Solenoid system for moving a type member
US3696906A (en) * 1970-03-25 1972-10-10 Olivetti & Co Spa Character selecting device for a printing mechanism
US3666070A (en) * 1970-06-29 1972-05-30 Ibm Differential mechanism for positioning a type character on a type element
US3677384A (en) * 1970-12-16 1972-07-18 Triumph Werke Nuernberg Ag Mechanism for positioning single element type carriers
US3795299A (en) * 1971-03-24 1974-03-05 Suwa Seikosha Kk Method of positioning drum for precision printing
US3872959A (en) * 1971-04-01 1975-03-25 Wang Laboratories Positioning typewriter
US3926293A (en) * 1974-12-19 1975-12-16 Facit Ab Dual carriage impact printer with belt drive
US4274102A (en) * 1977-09-08 1981-06-16 Victor Lum Multi-element writing instrument
USRE30942E (en) * 1979-04-23 1982-05-25 Tracor, Inc. Printing apparatus employing bidirectional stepping motors to position type member
US20050051208A1 (en) * 2003-06-17 2005-03-10 Mount Robert L. System for transferring heat in a thermoelectric generator system

Also Published As

Publication number Publication date
GB1069429A (en) 1967-05-17
DE1256929B (de) 1967-12-21
GB1069428A (en) 1967-05-17
CH393371A (it) 1965-06-15

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