US787608A - Printing-telegraph. - Google Patents

Printing-telegraph. Download PDF

Info

Publication number
US787608A
US787608A US21591604A US1904215916A US787608A US 787608 A US787608 A US 787608A US 21591604 A US21591604 A US 21591604A US 1904215916 A US1904215916 A US 1904215916A US 787608 A US787608 A US 787608A
Authority
US
United States
Prior art keywords
printing
magnet
selecting
relay
wheel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US21591604A
Inventor
John C Barclay
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.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US21591604A priority Critical patent/US787608A/en
Application granted granted Critical
Publication of US787608A publication Critical patent/US787608A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • H04L17/22—Apparatus or circuits at the receiving end using mechanical translation and type-bar printing

Definitions

  • WITNESSES INVENTOR ATTORNEYS PATENTED APR. 18, 1905. J. U. BARCLAY. PRINTING TELEGRAPH.
  • My invention relates to improvements in printing telegraphs, and embodies means whereby motor-driven printing mechanism is controlled by suitable electric selecting mechanism, so as to print at will any desired character within 'the capacity of the machine or to space, to return the carriage, or to feed the paper.
  • My invention comprises electrically-operated means controlling clutch mechanism interposed between a driving member and the printing mechanism, electrically-operated mechanism determining the selection of the character to be printed by the printing mechanism, electrically-operated shift mechanism, electrically-operated carriage-return mechanism, and electrically operated paper feed mechanism.
  • the objects of my invention are to increase the speed of operation of printing-telegraphs, to render the same more certain and reliable in operation,'and to render the same more simple, compact, and durable and lighter running.
  • Figure 1 shows an elevation of the left-hand side of the printingtelegraph receiver, the selecting-relays and associated parts being omitted.
  • Figs. 2 to 5, inclusive are detail views of the clutch employed for transmitting motion from a power or driving shaft to the printing mechanism and of the associated parts, Fig. 2 showing a front view of the clutch and associated parts, Fig. 3 a longitudinal section thereof, Fig. 4 a transverse section on the lineX X of Figs. 2 and 3, showing the cam mechanism for operating the carriage-feed, and Fig. 5 a transverse section in the line Y Y of Figs. 2 and 3 through the center of the clutch, showing the device for opening and closing the clutch.
  • Fig. 6 shows a sectional elevation of the machine, the section being taken on planes parallel to Fig. 1 and in such manner as to disclose the operation of the printing mechanism.
  • Fig. 7 is a detail view showing in side elevation the type-wheel shift mechanism.
  • Fig. 8 shows a front view of the printing mechanism of the machine, the carriage return and shift magnets being omitted.
  • Fig. 9 is a detail view showing one of the typewheel-actuating pawls and the rod for actuating the same.
  • Fig. 10 showsan elevation of the side of the machine opposite that shown in Fig. 1.
  • Fig. 11 shows a rear elevation of the machine.
  • Fig. 12 shows a detail front view of the carriage return and shift magnets and the parts operated thereby.
  • FIG. 13 shows a detail top view of the paper-carriage.
  • Fig. 14. is a detail top view showing the arrangement of the printing-magnets.
  • Fig. 15 is a diagrammatic View showing the combination of selecting-relays and cooperating devices whereby nals any particular operating-magnet of the machine may be selected, energized, and caused to operate the mechanism controlled thereby.
  • the printing mechanism which I prefer to employ and which is illustrated in the drawings is of the type in which power for moving the type to the printing-point and for by the transmission of proper sigmaking the impression is supplied by a constantly-rotating power or driving shaft, the determination of the particular character from which the impression is to be taken being effected under the control of electrical selecting mechanism by mechanical devices capable of operating with extreme rapidity and requiring a minimum of power for their operation.
  • the particular printing mechanism shown is in substance that of a known type of powerdriven type-writer with the finger-keys removed; but I do not limit myself to the use of this particular mechanism.
  • power for the operation of the machine is derived from a powershaft 1, Fig. 1, which is continuously driven by means of an electric motor located Within the casing 2.
  • the machine is of the typewheel type, embodyinga type-wheel 3, having on its periphery a plurality of characters which may be brought into printing position by rotating said wheel more or less and also when necessary by moving the wheel axially. Rotation of this type-wheel and the striking of the blow necessary for the making of an impression is effected by power derived from the driving-shaft 1 through the agency of a clutch 4 5 on said shaft.
  • Said clutch comprises two jaw members 4 and 5, of which the former is fast on said shaft and the latter is longitudinally movable thereon and by means equivalent to a spline is in driving connection with a cam 6 (see Fig. 6) on said shaft.
  • a spring 7 tends to press the two clutch members together; but this is prevented normally by a spacing-piece 8, Fig. 5, engaging the movable clutch member 5, which spacingpiece is arranged to be withdrawn when a magnet 9, hereinafter termed the spacingmagnet, is energized, the means for so withdrawing said spacing-piece comprising the armature 10 of said magnet, the rocker-arm 11, connected thereto, and the link 12, connecting the rocker-arm and the spacing-piece 8, which latter isitself supported by the rocker-arm 13.
  • Cam 6 when rotated through the closing of clutch 4 5 pushes to the rightof Fig. 1 a bar 14, supported by links 15 and 16 and arranged to transmit motion through a leafspring 17 (shown in dotted lines-in Fig. 1) to a swinging transverse actuating-bar 18.
  • the said type-wheel 3 is mounted upon a spindle 25, said spindle being mounted in a support 26, carried by a transverse rocker-shaft 27, having its bearings in the frame of the machine.
  • the type-wheel and spindle are in driving connection by means hereinafter described.
  • Upon the shaft 27 are mounted looselytwo sleeves 28, one to the right and the other to the left of the support 26, of which only one is shown in Fig. 6.
  • the said sleeves carry gear-sectors 29, intermeshing with a pinion 30 on the spindle 25.
  • Upon the sleeves 28 are mounted a plurality of segmental gears or tumblers 31, each corresponding to and in mesh with one of the gear-segments 19, above mentioned.
  • tumblers 31, though mounted on sleeves 28, are normally out of driving connection therewith, each tumbler being normally in an eccentric position with respect to its sleeve 28, but being mounted upon such sleeve in such manner as to be capable of sliding into the concentric position.
  • the first effect of the motion of the gear-sector 19 is to cause its co'r-' responding tumbler 31 to move to the right of Fig. 6 until the locking projection 32 of the sleeve 28 is in engagement with the lockingrecess 33 of' that tumbler. In this position the tumbler and sleeve 28 are concentric. Thereafter the tumbler and sleeve rotate together and by their rotation rotate the corresponding gear-sector 29, the pinion 30, and spindle 25, and therefore the type-wheel 3.
  • the several tumblers are arranged to pick up a transverse bar 35 when their corresponding characters on the type-wheel are in approximately the printing position, and this transverse bar 35 when picked up causes a stop-pawl 36 to engage one of the teeth of a stopping-ratchet 37, carried by the pinion 30, thus arresting the rotative movement of the type-wheel with the desired character opposite the platen.
  • This locking of the type wheel occurs before the forward movement ofthe transverse actuating-bar 18 is completed, and such movement of the actuatingbar continuing and the type-wheel being no longer able to rotate the pivotedsupport 26 of said type-wheel is caused to move backward about the shaft 27 'as an axis, carrying the type-wheel with it and causing said typewheel to strike a blow against the platen 38 or upon a piece of paper carried thereby.
  • the character opposite the platen wipes past an inking-roller 39, and therefore the striking of this character against the platen or paper thereon gives the desired impression.
  • the cam 6 on the driving-shaft 1, by which motion is imparted to the actuating-bar 18 and thence to the typewheel, is of such shape that in the first in stance it gives agradually-accelerated motion to said actuating-bar and then before the type-wheel reaches the platen permits said bar 18 to move forward by inertia in advance of the motion of the cam, so that the blow is struck by momentum.
  • a stationary cam 40 engages a projection 40 on clutch member 5 when said member has nearly completed its revolution, and said projection riding upon cam 40 is forced to the left of Fig. 2, carrying with it the clutch member 5, and so opening the clutch.
  • Link 12 is not directly connected to arm 11, actuated by the magnet 9, but is supported by a pivot 12, Fig. 1, and by the arm 13 and spacing-piece 8, above referred to, and motion istransmitted from arm 11 to link 12 through a pin 153.
  • Arm 11 and link 12 have independent retractile springs 154 and 155, re-
  • the tumblers 31, each corresponding to a different character of the type-wheel, constitute selecting devices of the printing mechanism each adapted for bringing its corresponding character into operative position for prlnting.
  • the face or side of this cam works against a clawlever 44, pivoted to move in the direction of motion of the carriage and also pivoted to move slightly in a plane substantially at right angles, so as to move into and out of engagement with a rack 45 on the back of the carriage.
  • the claw-lever 44 is out of engagement with the rack, and its upper end is in the extreme right-hand position looking from the front of the machine or in the extreme left-hand position looking at the rear of the machine, being held in such position and out of engagement with the rack by a suitable retractile spring 46.
  • the face portion of cam 43 causes said claw-lever when the cam rotates to move to the right of Fig. 11 through a distance equal to a single space, and at the same time the edge of cam 43, acting on the follower 47, connected to said claw -lever, causes the latter to engage the rack 45, so that the claw-lever in its lateral movement carries the carriage with it.
  • the edge portion of the cam 43 permits the claw-lever to fly back to its original position.
  • the circuits in which the several printing-magnets 24 are located have a common return, in which the spacing-magnet 9 is located, so that the magnet 9 is energized and the clutch closed each time one of the printing'magnets is energized.
  • the selecting mechanism is arranged to complete the circuit through the spacing-magnet 9 independent of the printing-magnets 24 when it is desired to space, but not to print.
  • Ucw'rirty e-v'azfimw For returning the carriage to the right-hand or starting position a magnet 49, Figs. 10 and 12, is provided on front of the machine.
  • the armature of this magnet engages a lever 51 and depresses said lever when the magnet is energized. Depression of this lever51 has the effect of drawing a friction-wheel 52 on a shaft 53 into engagement with a friction-wheel 54, arranged to bedriven continuously by the motor of the machine.
  • Such movement of the shaft 53 is permitted, owing to the fact that the bearing 55 of said shaft is arranged to have a slight oscillating movement.
  • wheel 52 When wheel 52 is so drawn into frictional engagement with wheel 54, it drives bevel-gears 56 and 57 and a pinion 58, which pinion engages the rack 45 on the back of the carriage, the effect of such rotation of the pinion being to move the carriage by power derived from the motor back to the starting-point.
  • means are provided for preventing the energization of any of the printing-magnets or the spacing-magnet 9 while the carriage is moved back to the startingpoint.
  • This magnet may be located conveniently at the back of the machine.
  • lts armature 60 is connected, through a link 61, with one arm of a bell-crank 62.
  • the other arm of this bell-crank is connected to a link 63, having in it an aperture through which passes freely a rod 64, mounted to oscillate about an axis substantially concentric with that of the platen 38 and having connected to it a pawl 65, engaging a ratchet 66 on the platen.
  • connection is such that the rod 64 is free to move to the right or left with the carriage, sliding through the orifice in link 63; but nevertheless whenever magnet 59 is energized said rod 64 will be drawn down and the pawl 65 be caused to engage the ratchet-wheel 66, and so rotate the platen to line-space.
  • the spindle 25of the type-wheel is capable of longitudinal movement within its support 26, the effect of such longitudinal movement being to move the lower band of characters on the type-wheel in the printing position.
  • Such movement may be effected by,means of the following mechanism:
  • the lower end of the spindle 25 rests upon an arc-shaped portion 67 (see Fig. 7) on an arm 68, such arc-shaped portion being substantially concentric with the shaft 27.
  • This arm 68 is arranged to be moved upward, and thereby to move the type-wheel upward by means of a link 69, connected toa bell-crank 70, which bell-crank is connected by another link, 71, Fig. 12, to the armature 72 of a shift-magnet 73, which may be located conveniently at the front of the machine.
  • the construction is such that when said magnet is energized and its armature attracted the arm 68 is raised, and with it the type-wheel, the effect being to bring the lower band of characters on said wheel into the printing position.
  • any suitable selecting mechanism may be employed for energizing any one of the printing-magnets 24 as desired; but I prefer to use the select ing mechanism set forth in my Letters Patent No. 758,7 32, dated May 3, 1904, and particularly the improved mechanism set forth in my Patent No. 785,076, dated March 21, 1905, because of the rapidity and certainty with which such mechanism operates.
  • This mechanism and the various printing-magnets, together with the spacing-magnet, paper-feed magnet, the carriage-return magnet, and the type-shift magnet, are shown diagrammatically in Fig. 15.
  • this selecting mechanism For operating this selecting mechanism successive current-pulses are employed, which are the same in number for each character transmitted, but vary in length, the different characters being differentiated by variations in number and arrangement of dots and dashes. For transmitting the characters of the English alphabet six pulses are employed for each message or character. The printing or other magnet corresponding to each such message transmitted is selected by the action of primary and secondary selecting relays-a sunflower and a separator relay, as hereinafter described.
  • the primary actuating device of this selecting mechanism is a line-relay 74, located in the line-circuit 75. This line-relay may of course be differentially wound :to permit of duplex or quadruplex operation.
  • the said relay controls two local circuits 76 and 77, connected to opposing contact-points of the main-line relay, both of which circuits pass through coils of aneutral relay 78, termed the separator-relay, through opposing coils of magnet 79, operating escapement mecham ism of the sunflower hereinafter described, and through a synchronizer magnet 98 to ground at 80.
  • a battery 81 or, other suitable source of electrical energy is connected to ground and to the armature of main-line relay 74.
  • One or the other of circuits 76 and 77 is bration of the escapement-anchor 96, and six 7 completed through battery 81, according as the said armature of relay 74 is in contact with the right-hand or left-hand contact of said relay.
  • the main-line relay 74 is very rapid in action and operates for each pulse produced in 'the main line whether short or long.
  • separator-relay is more sluggish in action and completes the circuit which it controls only when a long pulse is sent over the line.
  • the circuit controlled by separator-relay 78 passes from ground at 83, through battery 84, the armature of separator-relay 7 8, and conductor 85, to a plate 86 of the sunflower, to which the first five contactpoints 87', 88, 89, 90, and 91 of that sunflower are electrically connected.
  • This sunflower consists of contact-points 87, 88, 89,90, 91, and 92, adapted to be actuated successively by teeth of a ratchet-wheel 93 during movement of said Wheel through the space of one tooth.
  • Said ratchetwheel is mounted upon a shaft 94, upon which is also mounted an escapementwheel 95, having three times the number of teeth of ratchet-.
  • Magnet 98 beneath the sunflower' is a synchronizer-mag net operating an armature-lever 99, having a hook adapted to engage the teeth of ratchet-wheel 93. It is not necessary herein to describe the action of this synchronizer, as it is not required for the comprehension of the operation of the selecting mechanism and, indeed, may be omitted, circuits 76 and 77 passing directly from the coils of magnet 79 to ground.
  • the metal frame 86-, carrying contact-points 87 to 91 is connected by conductor 85, passing through contacts of separator-relay 78, with battery 84 and thence to ground.
  • These contact-points 87 to 91, inclusive which may be termed selectorcontacts, when operated by the movement of ratchet wheel 93 complete circuits successively from the contact-points of separatorrelay 78 through conductors 100 to 104, respectively leading to the magnets of polar selecting-relays 105, 106, 107, 108, and 109, respectively, and thence through a common return-conductor to ground at 111; butit will be seen that none of these circuits through the magnets of the polar selecting-relays will be closed unless at the instant when any one of those circuits is closed through the sunflower the transmission of a long pulse through the line has caused separator-relay 78 to complete the circuit through battery 84 to ground at 83.
  • the primary selecting-relays 105 to 109 each control a circuit of a corresponding secondary selecting relay or relays.
  • the controlling-circuits of these secondary selecting-relays 112 to 116, inclusive, are normally broken; but the armatures of the several primary selecting-relays are connected by a multiple-current lead 119 to a battery 120 and to ground, and when the magnet of any one primary polar selecting-relay is energized by a current passing through the sunflower and its armature is deflected said polar selecting-relay completes the circuit through the corresponding secondary selecting relay or relays which it controls, thereby operating the same.
  • These relays are provided with a second or restoring circuit 122 passing in series through all of these relays, which circuit when completed by a restoring-relay hereinafter mentioned returns the armatures of all these relays to their normal positions, breaking the circuits of the secondary selecting-relays 112 to 116, inclusive.
  • This restoring-circuit122 is arranged to be completed by a restoring-relay 123 after circuit is completed through the sixth contactpiece 92 of the sunflower, as hereinafter described.
  • the armature of relay 112 is connected to a circuit 124, arranged to be connected-through the sixth contact 92 of the sunflower, to a battery 125 and thence to ground at 126.
  • the contacts of the secondary selecting-relays are connected in tandem as follows: Relay 112 has two contact-points connected by conductors 128 and 129, respectively, to movable contacts on the armature of relay 113. Each of these movable contacts of relay 113 coacts with two contact-points, each connected to a contact-point on the armature of relay 114.
  • the fixed contact-points of relay 114 are connected each to an armature contact-point of one of the two relays 115, and so on.
  • the fixed contactpoints of relays 116 are connected to the printing-magnets 24, here shown as arranged in parallel lines, and to the spacing-magnet, the carriage-return magnet, the line-shift magnet, and the paper-feed magnet.
  • any one of the various magnets 24 may be selected at will for the completion therethrough of an energizingcircuit.
  • This is the circuit of conductor 124 and is completed and the particular magnet selected is energized upon the closing of the sixth sunflowercontact 92.
  • the spacing-magnet 9, the carriage-return magnet 49, the paper-feed magnet 59, and the type-shift magnet 7 3 may be selected and the circuit completed therethrough upon the transmission of the selective message corresponding to each of these magnets.
  • the spacing-magnet 9 is located in a common return of the circuits leading through the several printing-magnets 24, so the said magnet is energized each time one of the printing-magnets is energized. Said spacingmagnet is nevertheless arranged to be selected and a circuit completed therethrough upon the transmission of a corresponding selective message, this being necessary inorder that the spacing mechanism may be operated at will when no character is to be printed-as,
  • a message comprising six dots.
  • Such a message will not cause any of the secondary selecting-relays to be energized, but will cause the sunflower to operate, and therefore will cause said sunflower upon the completion of the sixth pulse of the message to complete a circuit through conductor 124 and a back-stop of a secondary selectingrelay of each of the five series of such relays, through conductor 139, the spacing-magnet, and thence to the common return.
  • the circuit of conductor 139 passes through contactpoints, normally closed, of a spacing-cut-out relay 141 and through another-contact 142 of the type-wheel-shift mechanism, contact 142 being also normally closed.
  • the spacing-cutout relay 141 is employed, because otherwise circuit would be closed through the sixth sunflower-contact and the back contacts of the secondary selectingrelays to the spacing magnet 9 upon the return of the armatures of the said secondary selecting-relays to normal after the transmission of each character.
  • This spacing-cut-out relay 141 is connected in multiple with restoring-relay 123 in a circuit closed by the completion of the sixth sunflower-contact, and, like relay 123, relay 141 is somewhat sluggish, so much so that upon the transmission of a message consisting only of dots it permits the circuit of magnet 9 to remain closed long enough for the operation of the spacing mechanism, but nevertheless breaks said circuit of magnet 9after the transmission of any signal which causes the operation of one or more of the secondary selecting-relays before, through the operation of the restoring-relay 123, the armatures of said secondary selecting-relays can have reached their back-stops.
  • Carrier e-retm'a.1t is important that during the return of the carriage the carriagereturn magnet 49 shall not be deenergized through the operation of the restoring-circuit 122 and the restoring-relay 123 until the carriage has returned to its extreme right hand position or startingpoint.
  • I provide the armature 50 of the carriage-release magnet with a contact-spring 134, arranged to make contact with the fixed contact 135 and cause the restoring-circuit 122 to pass through these contacts 134 and 135, as well as through the contacts of the restoring-relay, and I further provide in the circuit with the carriage-return magnet 49 a contact-lever 136, normally in contact with the stop 137, but arranged to be moved mechanically outof contact with such stop 137 when the carriage has returned completely to its starting-point.
  • This restoring-circuit is still closed through relay 123, since the sixth contact-point 92 of the sunflower remains closed until the first pulse of the next succeeding character is transmitted, and therefore upon the deenergization of the armature of the carriage-release magnet the restoring-circuit will be completed and the primary and secondary selecting-relays restored to normal position. As soon as another character is transmitted and the car riage begins its movement to the left contact between points 136 and 137 will be closed again.
  • the armature 72 of the shift-magnet 73 is arranged to be held in its shifted position by a detent-lever 147, controlled by a magnet 148, which magnet is located in a multiple branch 139 of the spacing-circuit 139, which branch, however, does not pass through contact 142 of the shift mechanism.
  • This detent-lever 147 holds the arma: ture 72 down when it has been attracted by its magnet, thus holding the type-wheel in its shifted position. This continues until a proper message. is transmitted to release the detent, such message being the-spacing-message, which now does not affect the spacing-magnet, circuit 139 to that magnet being broken at contact 142.
  • the several sectors 19 of the printing mechanism are normally held in place by lockinglevers 149.
  • Each pawl 20 when drawn down trips the corresponding locking-lever, permit ting the sector to be drawn forward by the forward movement of the actuating device 18.
  • Springs 150, acting upon rods 151, tend to hold the locking devices 149 in engagement with the sectors.
  • the springs 21 of the pawls 20 are held apart by combs 152, and thus false operation of the machine is prevented.
  • 164 designatesamotor-controlling switch
  • 165 designates the contact-arm
  • What I claim is 1.
  • the combination with a constantly-moving power member, printing mechanism comprising means, including selecting devices corresponding to different characters, for bringing selected charaeters into operative position, means for communicating motion from said power member to said printing mechanism, and selecting mechanism controlled by electrically-transmitted signals and determining the action of said selecting devices, of means controlling the transmission of power to said printing mechanism, operated simultaneously with the operation of the printing mechanism by said selecting mechanism.
  • printing mechanism comprising means, including selecting devices corresponding to different characters, for bringing selectedcharacters into operative position, means for communlcatlng motion from said power member to said printing mechanism, and selecting mechanism controlled by electrically-transmitted signals and determining the action of said selecting devices, of means controlling the transmission of power to said printing mechanism, said means operated by the selecting mechanism simultaneously with the operation of the printing mechanism thereby.
  • printing mechanism comprising a rotary type member and means for rotating the same and for obtaining impressions therefrom, driven from said power member and including select ing devices corresponding to different charac-.
  • ters, and selecting mechanism determining the action of the printing mechanism and controlled by electrically-transmitted signals, of means controlling the transmission'of power to the printing mechanism from said power member, said means arrangd to be operated sim ultaneously with the operation of the printing mechanism by said selecting mechanism.
  • printing mechanism comprising a rotary type member and means for rotating the same and for striking the same against a surface to be printed upon driven from said power memher and includingselectingdevices corresponding todiiferent characters, and selecting mechanism determining the action of the printing mechanism and controlled by electricallytransmitted signals, of means controlling the transmission of power to the printing mechanism from said power member, said means arranged to be operated simultaneously with the operation of the printing mechanism by said selecting mechanism.
  • printing mechanism com prising a rotary type member and means for rotating the same and for obtaining impressions therefrom driven from said power member, and tumblers corresponding to diflerent characters determining the degree to which said type member is rotated, and selecting mechanism for operating said tumblers controlled by electricallytransmitted signals, of means controlling the transmission of power to the printing mechanism from said power member, said means arranged to be operated simultaneously with the operation of said tumblers by the selecting mechanism.
  • a printing-telegraph the combination with a constantly moving power member, printing mechanism comprising a rotary type member and means for rotating the same and for striking the same against a surface to be printed upon driven from said power memher, and tumblers corresponding to different characters determining the degree to which said type member is rotated, and selecting mechanism for operating said tumblers controlled by electrically-transmitted signals, of means controlling the transmission of power to the printing mechanism from said power member, said means arranged to be operated simultaneously with the operation of said tumblers by the selecting mechanism.
  • a printing-telegraph the combination with a constantly-moving power member, printing mechanism arranged to be operated therefrom, and selecting mechanism determining the action of the printing mechanism and comprising an electrically-controlled sunflower, a separator-relay, selecting-circuits, primary and secondary selecting-relays and restoring means, of means for connecting and disconnecting operatively the power member and the printing mechanism, said means arranged to be operated simultaneously with the operation of the printing mechanism by said selecting mechanism.
  • a printing-telegraph the combination with a constantly-moving power member, printing mechanism arranged to be operated therefrom, and selecting mechanism determining the action of the printing mechanism and comprising an electrically-controlled sunflower, a separator-relay, selecting-circuits, primary and secondary selecting-relays and restoring means, of means for connecting and disconnecting operatively the power member and the printing mechanism, said means operated by the selecting mechanism simultaneously with the operation of the printing mechanism thereby.
  • aprinting-telegraph thecombination with printing mechanism, aplurality of printing-magnets for operating the same, and selecting mechanism for determining the particular printing-magnet to be energized controlled by electrically-transmitted signals, of a power member, a transmission device for communicating motion from the power member to the printing mechanism, and a magnet for controlling the operation of the printing mechanism from said power member, controlled by said selecting mechanism.
  • a printing-telegraph the combination with printing mechanism, a plurality of printing-magnets for operating the same, and selecting mechanism for determining the particular printing-magnet to be energized, of a power member, a transmission device for communicating motion from the power member to the printing mechanism, means operated thereby for effecting spacing independent of the operation of the printing mechanism, and a magnet for controlling the operationof said printing mechanism and spacing means from said power member, in circuit with each of said printing-magnets and also in a circuit arranged to be completed through said selecting mechanism independent of said printing-magnets.
  • the combination with printing mechanism, printing-magnets for operating the same and selecting mechanism for determining the particular printingmagnet to be energized said magnets located in independent circuits arranged to be completed independently through said selecting mechanism and having a common return, of a power member, atransmission device for communicating power from the power member to said printing mechanism, means operated by said power member for effectingspacing independent of the operation of the printing mechanism, and a magnet controlling the operation of said spacing mechanism, in the common return of the printing-magnet circuits, and likewise in a circuit arranged to be completed through the selecting mechanism independent of said printing-magnets.
  • the combination with printing mechanism, printing-magnets for operating the same, and selecting mechanism for determining the particular printing-magnet to be energized and comprising an electrically-controlled sunflower, a separator-relay, selecting-circuits, primary and secondary selecting-relays and restoring means, of a power member, a transmission device for connecting and disconnecting operatively the power member and the printing mechanism, and a magnet for operating said transmission device, controlled by said selecting mechanism.
  • the combination with printing mechanism, printing-11mgnets for operating the same, and selecting mechanism for determining the particular printing-magnet to be energized and comprising an electrically-controlled sunflower, a separator relay, selecting-circuits, primary and secondary selecting-relays and restoring means, of a power member, a transmission device for connecting and disconnecting op- IIO eratively the power member and the printing mechanism, means operated thereby for effecting spacing independent of the operating of the printing mechanism, and a magnet for operating said transmission device, in circuit with eachof said printing-magnets and also in a circuit arranged to be completed through said selecting mechanism independent of said printing-magnets.
  • the combination with printing mechanism, printing-magnets for operating the same, and selecting mechanism for determining the particular printing-magnet to be energized comprising an electrically-controlled sunflower, a separating-relay, selectingcircuits, primary and secondary-selecting-relays and restoring means, said printing-magnets loeatedin independent circuits arranged to be completed independently through said selecting mechanism and having a common return, of a power member, a transmission device for connecting and disconnecting operatively the power member and the printing mechanism, means operated thereby for effecting spacingindependent of the operation of the printing mechanism, and a magnet for operating said transmission device, in the common return of the printing-magnet circuits, and likewise in a circuit arranged to be completed by the selecting mechanism independent of said printing-magnets.
  • a printing-telegraph the combination with a power member, an actuating device arranged to be operated thereby, a transmission device for connecting and disconnecting operatively the power member andactuating device, a plurality of tumblers, corresponding pawls, and printing-magnets each adapted when energized, to bring a corresponding pawl into engagement with said actuating device, of means actuated by said pawls when themselves operated by said actuating device, for operating their corresponding tumblers, printing means operated by the tumblers and adapted to print a character corresponding to whichever tumbler is operated, and a magnet controllingisaid transmission device.
  • the combination with a movable actuating device means move in proximity each to a corresponding pawl, and each provided with means for engaging its corresponding pawl and moving the same into engagement with said actuating device.
  • a printing-telegraph the combination with a movable actuating device, means for driving the same, a plurality of pawls adapted to engage said actuating device, but normally disengaged therefrom, springs normally holding said pawls out of such engagement, and combs for said springs, of printingmagnets, and means operated thereby for drawing the several pawls into engagement with said actuating device, printing means, and means for operating the same actuated by the several pawls.
  • a printing-telegraph the combination with a movable actuating device, means for driving the same, a plurality. of pawls adapted to engage said actuating device, but normally disengaged therefrom, springs normally holding said pawls out of such engagement, sliding rods for actuating the several pawls, guide-bars therefor, and printing-magnets and means operated thereby for operating the several rods.
  • lecting mechanism for selecting the particular printing-magnet to be energized, a sliding carriage, and means for feeding the same during the printing, of a powershaft, carriage-return mechanism adapted to be operated thereby but normally disengaged therefrom, a carriage-return magnet likewise controlled by said selecting mechanism, and means actuated by said oarriage-retu rn magnet for operatively connecting the carriage return mechanism and power-shaft.
  • a printing-telegraph the combination with printing mechanism, a plurality of printing-magnets for operating the same, selecting mechanism for selecting the particular printing-magnet to be energized, a sliding carriage, and means for feeding the same during the printing, of apower-shaft, carriage-return mechanism adapted to be operated thereby but normally disengaged therefrom, a carriage-return magnet located at the front of the machine in front of said printing mechanism, said magnet likewise controlled by said selecting mechanism, an armature for said magnet, and a lever operated thereby,-connected .With said carriage-return mechanism and arranged to bring the same into operative engagement with said power-shaft.
  • the combination with a carriage adapted to be moved back and forth during the operation of the machine, ratchet-operated paper-feed devices thereon, and a rod for operating said paperfeed, located upon said carriage iii a position substantially parallel to the direction of motion of the carriage, of a paper-feed magnet, printing mechanism, printing-magnets therefor, selecting mechanism determining the action of the printing and paper-feed magnets, and comprising an electrically-controlled sunflower, a separator-relay, selecting-circuits, primary and secondary selecting-relays and restoring means; and means operated by the paper-feed magnet for operating the said rod on the carriage.
  • a printing-telegraph the combination with a type-wheel provided with a plurality of rows of characters and movable axially and rotatively, and likewise movable bodily for forming the impression, printing mechanism for rotating said wheel to bring the desired character opposite the printing position, printing-magnets for operating said printing mechanism, a shift-magnet, and means operated thereby for moving said type-wheel axially comprising means for permitting the bodily movement of said wheel by which the impresssion is given, of selecting mechanism for determining the action of said printing and shift magnets, comprising a separator-relay, selecting-circuits, primary and secondary selecting-relays and restoring means.
  • a printing-telegraph the combination with a constantly-moving power member, printing mechanism comprising means, including selecting devices corresponding to dilferent characters, for bringing selected characters into operative position, and means, including a clutch, for communicating motion from said power member to said printing mechanism, of a plurality of printing-mag nets, each corresponding to and arranged to bring into operation one of said selecting devices, and another magnet and clutch-closing means operated thereby to close said clutch.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Common Mechanisms (AREA)

Description

PATENTED APR. 18, 1905. J. c. BARCLAY. PRINTING TELEGRAPH. APPLICATION FILED JULY 9, 1904.
7 SHEETS-SHEET 1.
PATENTED APR. 18, 1905.
J. G. BARGLAY.
' PRINTING TELEGRAPH.
APPLICATION FILED JULY 9, 1904.
7 SHEETS-SHEET 2.
INVENTOR ATTORNEYS WITNESSES 2 1 5- 2 1 z 731* A PATENTED APR. 18, 1905.
J. G. BARCLAY.
PRINTING TELEGRAPH.
APPLICATION IILEDIULY 9,, 1904.
7 SHEETS-SHEET 3 INVENTOR MAC. EMA
EYS
PATENTED APR. 18, 1905.
J. G. BARCLAY.
PRINTING TELEGRAPH.
APPLICATION FILED JULY 9, 1904.
7 SHEETS-SHEET 4 PATENTED APR. 18, 1905.
J. G. BARCLAY.
PRINTING TELEGRAPH.
APPLICATION FILED JULY 9, 1904.
7 SHEETS-SHEET 5.
ATTORNEY N0.-787,608. PATENTED APR. 18, 1905. J. G. BARCLAY.
PRINTING TELEGRAPH.
APPLICATION FILED JULY 9, 1904.
7 SHEE-T8SHEBT 6.
WITNESSES: INVENTOR ATTORNEYS PATENTED APR. 18, 1905. J. U. BARCLAY. PRINTING TELEGRAPH.
APPLICATION FILED JULY 9, 1904.
K W ITNESS S INVENTOR a, a BY ATTORNEYS UNITED STATES Patented April 18, 1905.
JOHN o. BARCLAY, OF NEW YORK, N. Y.
PRINTING-TELEGRAPH.
SPECIFICATION forming part of Letters Patent N 0. 787,608, dated April 18, 1905.
' Application filed July 9, 1904. Serial No. 215,916.
To all whom, it may concern.-
Beit known that 1, JOHN C. BARCLAY, acitizenof the United States, residing at New York, in the county of New York and State. of New York, have invented certain new and useful Improvements in Printing-Telegraphs; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.
My invention relates to improvements in printing telegraphs, and embodies means whereby motor-driven printing mechanism is controlled by suitable electric selecting mechanism, so as to print at will any desired character within 'the capacity of the machine or to space, to return the carriage, or to feed the paper.
My invention comprises electrically-operated means controlling clutch mechanism interposed between a driving member and the printing mechanism, electrically-operated mechanism determining the selection of the character to be printed by the printing mechanism, electrically-operated shift mechanism, electrically-operated carriage-return mechanism, and electrically operated paper feed mechanism.
The printing-telegraph herein described further involves the electrical selecting mechanism set forth in my PatentNo. 758,732,
dated May 3, 1904, also other features of invention' set forth in my Patent No. 785,076, dated March 21,1905.
The objects of my invention are to increase the speed of operation of printing-telegraphs, to render the same more certain and reliable in operation,'and to render the same more simple, compact, and durable and lighter running.
I will now proceed to describe myinvention with reference to the accompanying drawings and will then point out the novel features thereof in claims.
In the said drawings, Figure 1 shows an elevation of the left-hand side of the printingtelegraph receiver, the selecting-relays and associated parts being omitted. Figs. 2 to 5, inclusive, are detail views of the clutch employed for transmitting motion from a power or driving shaft to the printing mechanism and of the associated parts, Fig. 2 showing a front view of the clutch and associated parts, Fig. 3 a longitudinal section thereof, Fig. 4 a transverse section on the lineX X of Figs. 2 and 3, showing the cam mechanism for operating the carriage-feed, and Fig. 5 a transverse section in the line Y Y of Figs. 2 and 3 through the center of the clutch, showing the device for opening and closing the clutch.
Fig. 6 shows a sectional elevation of the machine, the section being taken on planes parallel to Fig. 1 and in such manner as to disclose the operation of the printing mechanism. Fig. 7 is a detail view showing in side elevation the type-wheel shift mechanism. Fig. 8 shows a front view of the printing mechanism of the machine, the carriage return and shift magnets being omitted. Fig. 9 is a detail view showing one of the typewheel-actuating pawls and the rod for actuating the same. Fig. 10 showsan elevation of the side of the machine opposite that shown in Fig. 1. Fig. 11 shows a rear elevation of the machine. Fig. 12 shows a detail front view of the carriage return and shift magnets and the parts operated thereby. Fig. 13 shows a detail top view of the paper-carriage. Fig. 14. is a detail top view showing the arrangement of the printing-magnets. Fig. 15 is a diagrammatic View showing the combination of selecting-relays and cooperating devices whereby nals any particular operating-magnet of the machine may be selected, energized, and caused to operate the mechanism controlled thereby.
I will first describe the printing mechanism and associated parts of the machine, including the magnets and associated parts by which the operation of the machine is effected, and
will thendescribe with reference to Fig. 15'
the preferred arrangement of selecting devices to be employed in connection with the machine.
The printing mechanism which I prefer to employ and which is illustrated in the drawings is of the type in which power for moving the type to the printing-point and for by the transmission of proper sigmaking the impression is supplied by a constantly-rotating power or driving shaft, the determination of the particular character from which the impression is to be taken being effected under the control of electrical selecting mechanism by mechanical devices capable of operating with extreme rapidity and requiring a minimum of power for their operation. The particular printing mechanism shown is in substance that of a known type of powerdriven type-writer with the finger-keys removed; but I do not limit myself to the use of this particular mechanism.
In the machine shown power for the operation of the machine is derived from a powershaft 1, Fig. 1, which is continuously driven by means of an electric motor located Within the casing 2. The machine is of the typewheel type, embodyinga type-wheel 3, having on its periphery a plurality of characters which may be brought into printing position by rotating said wheel more or less and also when necessary by moving the wheel axially. Rotation of this type-wheel and the striking of the blow necessary for the making of an impression is effected by power derived from the driving-shaft 1 through the agency of a clutch 4 5 on said shaft. Said clutch comprises two jaw members 4 and 5, of which the former is fast on said shaft and the latter is longitudinally movable thereon and by means equivalent to a spline is in driving connection with a cam 6 (see Fig. 6) on said shaft. A spring 7 tends to press the two clutch members together; but this is prevented normally by a spacing-piece 8, Fig. 5, engaging the movable clutch member 5, which spacingpiece is arranged to be withdrawn when a magnet 9, hereinafter termed the spacingmagnet, is energized, the means for so withdrawing said spacing-piece comprising the armature 10 of said magnet, the rocker-arm 11, connected thereto, and the link 12, connecting the rocker-arm and the spacing-piece 8, which latter isitself supported by the rocker-arm 13.
Cam 6 when rotated through the closing of clutch 4 5 pushes to the rightof Fig. 1 a bar 14, supported by links 15 and 16 and arranged to transmit motion through a leafspring 17 (shown in dotted lines-in Fig. 1) to a swinging transverse actuating-bar 18. In rear of this actuating-bar there areaplurality of gear-segments 19, one for each division or character-space of type-wheel 3, and each of said segments carries a corresponding pawl 20, normally above and out of engagement with the main actuating-bar 18 and held out of such engagement by a spring 21, but arranged to be drawn down into such engagement at suitable times by a corresponding operating-rod 22, mounted to slide up and down in suitable guides at the front of the .machine and connected each to the armaturelever 23 of the corresponding printing-magnet 24, the completion of the circuits of these printing -magnets being controlled by the electrical selecting mechanism shown in Fig. 15 and hereinafter described. It will be apparent, however, that when any one of the printing-magnets 24 is energized its corresponding pawl 20 will be drawn down into engagement with the actuating-bar 18,and since, as hereinafter explained, at the same instant when any printing-magnet 24 is energized the spacing-magnet 9 is also energized, and the clutch 4 5 is thereby closed and the cam 6 caused to revolve and move the actuating-bar 18 forward, it follows that as soon as any one of the pawls 20 engages the bar 18 it and its gearsegment 19 are drawn forward, the effect of which, as will now be explained, is to rotate the type-wheel to the proper amount and then to cause it to move backward bodily .to make the impression. The said type-wheel 3 is mounted upon a spindle 25, said spindle being mounted in a support 26, carried by a transverse rocker-shaft 27, having its bearings in the frame of the machine. The type-wheel and spindle are in driving connection by means hereinafter described. Upon the shaft 27 are mounted looselytwo sleeves 28, one to the right and the other to the left of the support 26, of which only one is shown in Fig. 6. The said sleeves carry gear-sectors 29, intermeshing with a pinion 30 on the spindle 25. Upon the sleeves 28 are mounted a plurality of segmental gears or tumblers 31, each corresponding to and in mesh with one of the gear-segments 19, above mentioned. These tumblers 31, though mounted on sleeves 28, are normally out of driving connection therewith, each tumbler being normally in an eccentric position with respect to its sleeve 28, but being mounted upon such sleeve in such manner as to be capable of sliding into the concentric position. The first effect of the motion of the gear-sector 19 is to cause its co'r-' responding tumbler 31 to move to the right of Fig. 6 until the locking projection 32 of the sleeve 28 is in engagement with the lockingrecess 33 of' that tumbler. In this position the tumbler and sleeve 28 are concentric. Thereafter the tumbler and sleeve rotate together and by their rotation rotate the corresponding gear-sector 29, the pinion 30, and spindle 25, and therefore the type-wheel 3.
It is obviously necessary that the movement of some of the gear-sectors 19 should produce only a small angular movement of the typewheel about its axis, while the movement of others of said gear-sectors 19 should cause said typewheel to move through a much greater angular distance. It is also desirable that the total movement of all the gear-sec tors 19 should be the same. This may be accomplished in various .ways, one of the most convenient of which is to graduate the pitchdiameters of the several sectors 19 and their respective tumblers in such manner that although all the gear-sectors 19 move through the same distance the tumblers 31 move through different distances corresponding to the particular angular distance through which each tumbler should move the type-wheel to bring the corresponding character into printing position, the tumblers which rotate the type wheel through relatively great angles being of less diameter and their respective,
segments 19 being of greater diameter than the tumblers and segments which move the type-wheel through less angles. It will be seen thatby properly proportioning and graduating the diameters of the several tumblers 31 and the gear-sectors 19 by which they are operated the several angular movements of the type-wheel required to bring any particular character thereon into printing position may be produced notwithstanding that all the gear sectors 19 move through the same distance.
The several tumblers are arranged to pick up a transverse bar 35 when their corresponding characters on the type-wheel are in approximately the printing position, and this transverse bar 35 when picked up causes a stop-pawl 36 to engage one of the teeth of a stopping-ratchet 37, carried by the pinion 30, thus arresting the rotative movement of the type-wheel with the desired character opposite the platen. This locking of the type wheel occurs before the forward movement ofthe transverse actuating-bar 18 is completed, and such movement of the actuatingbar continuing and the type-wheel being no longer able to rotate the pivotedsupport 26 of said type-wheel is caused to move backward about the shaft 27 'as an axis, carrying the type-wheel with it and causing said typewheel to strike a blow against the platen 38 or upon a piece of paper carried thereby. In its backward movement the character opposite the platen wipes past an inking-roller 39, and therefore the striking of this character against the platen or paper thereon gives the desired impression. The cam 6 on the driving-shaft 1, by which motion is imparted to the actuating-bar 18 and thence to the typewheel, is of such shape that in the first in stance it gives agradually-accelerated motion to said actuating-bar and then before the type-wheel reaches the platen permits said bar 18 to move forward by inertia in advance of the motion of the cam, so that the blow is struck by momentum. A stationary cam 40 engages a projection 40 on clutch member 5 when said member has nearly completed its revolution, and said projection riding upon cam 40 is forced to the left of Fig. 2, carrying with it the clutch member 5, and so opening the clutch. Just before the clutch member 5 comes to rest it slips off the end of cam 40 and comes to rest on the spacing-piece 8, which forms a continuation of cam 40 and has a lug 8', forming astop for projection40. The spacing-piece therefore holds the clutch .open until upon magnet 9 being energized link 12 and said spacing-piece are again drawn forward, permitting the clutch member 5 to move again into engagement with clutch member 4. It will be seen, therefore, that each time one of the magnets 24 is energized, and with it the magnet 9 and the link 12 and spacing-piece 8 are drawn forward, the clutch 4 5' is closed for one revolution only of cam 6, and then the clutch is opened, thus preventing repetition of the character corresponding to that magnet 24 unless the same magnet be energized again.
Link 12 is not directly connected to arm 11, actuated by the magnet 9, but is supported by a pivot 12, Fig. 1, and by the arm 13 and spacing-piece 8, above referred to, and motion istransmitted from arm 11 to link 12 through a pin 153. Arm 11 and link 12 have independent retractile springs 154 and 155, re-
spectively, which return them to normal as soon as magnet 9 is denergized, and to further insure the return of spacing-piece 8 and link 12 to normal before the projection 40 reaches the end of cam 40 said spacing-piece has a horn-like extension 156, Fig. 5, which will be engaged by a pin 157, .carried by the clutch member5 and forced back if said spacing-piece has not already reached its normal position before pin 157 comes opposite said extension. As soon as cam 6 permits upon the completion of its revolution parts 14, 15, 16, 'and 18 are returned by a retractile spring 158, Fig. 6, connected to an arm 159, secured to rock-shaft 160, upon which the arm 16 is loosely mounted and to which spring 17 and actuating-bar 18 are secured. The type-wheel and associated parts are returned to normal by a spring 161, Fig. 1, connected to an arm 162, engaging a cam or finger163 upon the transverse rocker-shaft 27.
The tumblers 31, each corresponding to a different character of the type-wheel, constitute selecting devices of the printing mechanism each adapted for bringing its corresponding character into operative position for prlnting.
Upon the spindle 25 of the type-wheel 3 there is a star-wheel 41,-which when the typewheel begins to move backward to strike an impression is engaged by a centering-pin 42, which serves to bring the character to be struck into the exact position required to give a good impression.
Carriage -feeZ.-For letter spacing, and spacing between words the carriage carrying the platen is free to move to the right or left, as in ordinary type-writers. It is fed to the left for spacing between letters and between words by a cam 43, Figs. 2, 4, and 11, on drive-shaft 1 and controlled by clutch 4 5, which is both aface-cam and an edge cam. The face or side of this cam works against a clawlever 44, pivoted to move in the direction of motion of the carriage and also pivoted to move slightly in a plane substantially at right angles, so as to move into and out of engagement with a rack 45 on the back of the carriage. Normally the claw-lever 44 is out of engagement with the rack, and its upper end is in the extreme right-hand position looking from the front of the machine or in the extreme left-hand position looking at the rear of the machine, being held in such position and out of engagement with the rack by a suitable retractile spring 46. The face portion of cam 43 causes said claw-lever when the cam rotates to move to the right of Fig. 11 through a distance equal to a single space, and at the same time the edge of cam 43, acting on the follower 47, connected to said claw -lever, causes the latter to engage the rack 45, so that the claw-lever in its lateral movement carries the carriage with it. As soon as such lateral movement is completed the edge portion of the cam 43 permits the claw-lever to fly back to its original position.
As will be explained hereinafter in the description relating to Fig. 15, the circuits in which the several printing-magnets 24 are located have a common return, in which the spacing-magnet 9 is located, so that the magnet 9 is energized and the clutch closed each time one of the printing'magnets is energized. As will also appear from the description relating to Fig. 15, the selecting mechanism is arranged to complete the circuit through the spacing-magnet 9 independent of the printing-magnets 24 when it is desired to space, but not to print. It will be obvious that if the magnet9 is energized without any of the printing-magnets 24 being'energized simultaneously the clutch 4 5 will be closed and the spacing mechanism just described will be operated and the carriage moved to the left one space even though no portion of the printing mechanism operates. In such case the actuating-bar 18 moves forward idly, none of the pawls 20 engaging it.
Ucw'rirty e-v'azfimw.For returning the carriage to the right-hand or starting position a magnet 49, Figs. 10 and 12, is provided on front of the machine. The armature of this magnet engages a lever 51 and depresses said lever when the magnet is energized. Depression of this lever51 has the effect of drawing a friction-wheel 52 on a shaft 53 into engagement with a friction-wheel 54, arranged to bedriven continuously by the motor of the machine. Such movement of the shaft 53 is permitted, owing to the fact that the bearing 55 of said shaft is arranged to have a slight oscillating movement. When wheel 52 is so drawn into frictional engagement with wheel 54, it drives bevel- gears 56 and 57 and a pinion 58, which pinion engages the rack 45 on the back of the carriage, the effect of such rotation of the pinion being to move the carriage by power derived from the motor back to the starting-point.
As will be described hereinafter with reference to Fig. 15, means are provided for preventing the energization of any of the printing-magnets or the spacing-magnet 9 while the carriage is moved back to the startingpoint.
laper-feed.-For feeding the papera'. 0., for Jine-spacing-a magnet 59 is provided.
(See Figs. 10 and 11.) This magnet may be located conveniently at the back of the machine. lts armature 60 is connected, through a link 61, with one arm ofa bell-crank 62. The other arm of this bell-crank is connected to a link 63, having in it an aperture through which passes freely a rod 64, mounted to oscillate about an axis substantially concentric with that of the platen 38 and having connected to it a pawl 65, engaging a ratchet 66 on the platen. The connection is such that the rod 64 is free to move to the right or left with the carriage, sliding through the orifice in link 63; but nevertheless whenever magnet 59 is energized said rod 64 will be drawn down and the pawl 65 be caused to engage the ratchet-wheel 66, and so rotate the platen to line-space.
Type-shift.-The type-wheel 3, as already stated, is provided with two bands of characters, of which normally the upper band only .is in the printing position. The spindle 25of the type-wheel is capable of longitudinal movement within its support 26, the effect of such longitudinal movement being to move the lower band of characters on the type-wheel in the printing position. Such movement may be effected by,means of the following mechanism: The lower end of the spindle 25 rests upon an arc-shaped portion 67 (see Fig. 7) on an arm 68, such arc-shaped portion being substantially concentric with the shaft 27. This arm 68, however, is arranged to be moved upward, and thereby to move the type-wheel upward by means of a link 69, connected toa bell-crank 70, which bell-crank is connected by another link, 71, Fig. 12, to the armature 72 of a shift-magnet 73, which may be located conveniently at the front of the machine. The construction is such that when said magnet is energized and its armature attracted the arm 68 is raised, and with it the type-wheel, the effect being to bring the lower band of characters on said wheel into the printing position.
Selecting mechanism.Obviously any suitable selecting mechanism may be employed for energizing any one of the printing-magnets 24 as desired; but I prefer to use the select ing mechanism set forth in my Letters Patent No. 758,7 32, dated May 3, 1904, and particularly the improved mechanism set forth in my Patent No. 785,076, dated March 21, 1905, because of the rapidity and certainty with which such mechanism operates. This mechanism and the various printing-magnets, together with the spacing-magnet, paper-feed magnet, the carriage-return magnet, and the type-shift magnet, are shown diagrammatically in Fig. 15. For operating this selecting mechanism successive current-pulses are employed, which are the same in number for each character transmitted, but vary in length, the different characters being differentiated by variations in number and arrangement of dots and dashes. For transmitting the characters of the English alphabet six pulses are employed for each message or character. The printing or other magnet corresponding to each such message transmitted is selected by the action of primary and secondary selecting relays-a sunflower and a separator relay, as hereinafter described. The primary actuating device of this selecting mechanism is a line-relay 74, located in the line-circuit 75. This line-relay may of course be differentially wound :to permit of duplex or quadruplex operation. The said relay controls two local circuits 76 and 77, connected to opposing contact-points of the main-line relay, both of which circuits pass through coils of aneutral relay 78, termed the separator-relay, through opposing coils of magnet 79, operating escapement mecham ism of the sunflower hereinafter described, and through a synchronizer magnet 98 to ground at 80. A battery 81 or, other suitable source of electrical energy is connected to ground and to the armature of main-line relay 74. One or the other of circuits 76 and 77 is bration of the escapement-anchor 96, and six 7 completed through battery 81, according as the said armature of relay 74 is in contact with the right-hand or left-hand contact of said relay.
The main-line relay 74 is very rapid in action and operates for each pulse produced in 'the main line whether short or long. The
separator-relay is more sluggish in action and completes the circuit which it controls only when a long pulse is sent over the line. The circuit controlled by separator-relay 78 passes from ground at 83, through battery 84, the armature of separator-relay 7 8, and conductor 85, to a plate 86 of the sunflower, to which the first five contactpoints 87', 88, 89, 90, and 91 of that sunflower are electrically connected. This sunflower consists of contact- points 87, 88, 89,90, 91, and 92, adapted to be actuated successively by teeth of a ratchet-wheel 93 during movement of said Wheel through the space of one tooth. Said ratchetwheel is mounted upon a shaft 94, upon which is also mounted an escapementwheel 95, having three times the number of teeth of ratchet-.
wheel 93 and controlled in its movement by the escapement-anchor 96, which is actuated by the armature 97, which is polarized. The coils of magnet 79, through which circuits 76 and 77 pass, being oppositely wound, alternate pulses in these circuits will cause the visuch pulses, permitting rotation of escapementwheel 95 through the space of three teeth, will advance ratchet-wheel 93 through the space of one tooth, causing contact-points 87 to 92 to com plete their respective contacts successively and completing one cycle of operation of the sunflower. The shaft 94 of the sunflower is driven by any suitable device, such as aspring-motor or friction-drive, which will permit intermittent motion of said shaft.
Magnet 98 beneath the sunflower'is a synchronizer-mag net operating an armature-lever 99, having a hook adapted to engage the teeth of ratchet-wheel 93. It is not necessary herein to describe the action of this synchronizer, as it is not required for the comprehension of the operation of the selecting mechanism and, indeed, may be omitted, circuits 76 and 77 passing directly from the coils of magnet 79 to ground.
It was stated above that the metal frame 86-, carrying contact-points 87 to 91, is connected by conductor 85, passing through contacts of separator-relay 78, with battery 84 and thence to ground. These contact-points 87 to 91, inclusive,which may be termed selectorcontacts, when operated by the movement of ratchet wheel 93 complete circuits successively from the contact-points of separatorrelay 78 through conductors 100 to 104, respectively leading to the magnets of polar selecting- relays 105, 106, 107, 108, and 109, respectively, and thence through a common return-conductor to ground at 111; butit will be seen that none of these circuits through the magnets of the polar selecting-relays will be closed unless at the instant when any one of those circuits is closed through the sunflower the transmission of a long pulse through the line has caused separator-relay 78 to complete the circuit through battery 84 to ground at 83.
Polar selecting-relays 105 to 109, inclusive, control circuits of secondary selecting- relays 112, 113, 114, 115, and 116, respectively, the contact-points of which are connected in tandem in the order named, the five series of contact-points forming an arithmetical progression.
The primary selecting-relays 105 to 109, inelusive, each control a circuit of a corresponding secondary selecting relay or relays. The controlling-circuits of these secondary selecting-relays 112 to 116, inclusive, are normally broken; but the armatures of the several primary selecting-relays are connected by a multiple-current lead 119 to a battery 120 and to ground, and when the magnet of any one primary polar selecting-relay is energized by a current passing through the sunflower and its armature is deflected said polar selecting-relay completes the circuit through the corresponding secondary selecting relay or relays which it controls, thereby operating the same.
The armatures of the primary or polar selecting-relays 105 to 109, inclusive, tend to remain in contact with whatever contactpoint they are in contact at the time. These relays are provided with a second or restoring circuit 122 passing in series through all of these relays, which circuit when completed by a restoring-relay hereinafter mentioned returns the armatures of all these relays to their normal positions, breaking the circuits of the secondary selecting-relays 112 to 116, inclusive. This restoring-circuit122 is arranged to be completed by a restoring-relay 123 after circuit is completed through the sixth contactpiece 92 of the sunflower, as hereinafter described.
Referring now to the, secondary selectingrelays 112 to 116, the armature of relay 112 is connected to a circuit 124, arranged to be connected-through the sixth contact 92 of the sunflower, to a battery 125 and thence to ground at 126. The contacts of the secondary selecting-relays are connected in tandem as follows: Relay 112 has two contact-points connected by conductors 128 and 129, respectively, to movable contacts on the armature of relay 113. Each of these movable contacts of relay 113 coacts with two contact-points, each connected to a contact-point on the armature of relay 114. In like manner the fixed contact-points of relay 114 are connected each to an armature contact-point of one of the two relays 115, and so on. The fixed contactpoints of relays 116 are connected to the printing-magnets 24, here shown as arranged in parallel lines, and to the spacing-magnet, the carriage-return magnet, the line-shift magnet, and the paper-feed magnet.
It will be seen that by means of the various secondary selecting-relays 112 to 116, inclusive, any one of the various magnets 24 may be selected at will for the completion therethrough of an energizingcircuit. This is the circuit of conductor 124 and is completed and the particular magnet selected is energized upon the closing of the sixth sunflowercontact 92. In like manner the spacing-magnet 9, the carriage-return magnet 49, the paper-feed magnet 59, and the type-shift magnet 7 3 may be selected and the circuit completed therethrough upon the transmission of the selective message corresponding to each of these magnets.
The spacing-magnet 9 is located in a common return of the circuits leading through the several printing-magnets 24, so the said magnet is energized each time one of the printing-magnets is energized. Said spacingmagnet is nevertheless arranged to be selected and a circuit completed therethrough upon the transmission of a corresponding selective message, this being necessary inorder that the spacing mechanism may be operated at will when no character is to be printed-as,
-for example, when spacing between words.
I prefer to employ for the operation of the spacing-magnet alone a message comprising six dots. Such a message will not cause any of the secondary selecting-relays to be energized, but will cause the sunflower to operate, and therefore will cause said sunflower upon the completion of the sixth pulse of the message to complete a circuit through conductor 124 and a back-stop of a secondary selectingrelay of each of the five series of such relays, through conductor 139, the spacing-magnet, and thence to the common return. The circuit of conductor 139 passes through contactpoints, normally closed, of a spacing-cut-out relay 141 and through another-contact 142 of the type-wheel-shift mechanism, contact 142 being also normally closed. The spacing-cutout relay 141 is employed, because otherwise circuit would be closed through the sixth sunflower-contact and the back contacts of the secondary selectingrelays to the spacing magnet 9 upon the return of the armatures of the said secondary selecting-relays to normal after the transmission of each character. This spacing-cut-out relay 141 is connected in multiple with restoring-relay 123 in a circuit closed by the completion of the sixth sunflower-contact, and, like relay 123, relay 141 is somewhat sluggish, so much so that upon the transmission of a message consisting only of dots it permits the circuit of magnet 9 to remain closed long enough for the operation of the spacing mechanism, but nevertheless breaks said circuit of magnet 9after the transmission of any signal which causes the operation of one or more of the secondary selecting-relays before, through the operation of the restoring-relay 123, the armatures of said secondary selecting-relays can have reached their back-stops.
Carrier e-retm'a.1t is important that during the return of the carriage the carriagereturn magnet 49 shall not be deenergized through the operation of the restoring-circuit 122 and the restoring-relay 123 until the carriage has returned to its extreme right hand position or startingpoint. Accordingly I provide the armature 50 of the carriage-release magnet with a contact-spring 134, arranged to make contact with the fixed contact 135 and cause the restoring-circuit 122 to pass through these contacts 134 and 135, as well as through the contacts of the restoring-relay, and I further provide in the circuit with the carriage-return magnet 49 a contact-lever 136, normally in contact with the stop 137, but arranged to be moved mechanically outof contact with such stop 137 when the carriage has returned completely to its starting-point. It will be seen that the effect of this contactmechanism is as follows: Upon the energization of the carriage-return magnet 49 the armature of said magnet is attracted, thereby breaking the restoring-circuit between contacts 134 and 135, which circuit would otherwise be completed almost immediately through the operation of the restoring-relay 123 following the completion of the sixth sunflower-contact. The restoring-circuit remains broken until When the carriage has reached its'extreme right-hand position or startingpoint said carriage mechanically operates contact-point 136, thus breaking the circuit through the carriagerelease contact, permitting its armature to fall and close the restoring-circuit 122. This restoring-circuit is still closed through relay 123, since the sixth contact-point 92 of the sunflower remains closed until the first pulse of the next succeeding character is transmitted, and therefore upon the deenergization of the armature of the carriage-release magnet the restoring-circuit will be completed and the primary and secondary selecting-relays restored to normal position. As soon as another character is transmitted and the car riage begins its movement to the left contact between points 136 and 137 will be closed again.
S/ulf't 'mcc/tmzism.The armature 72 of the shift-magnet 73 is arranged to be held in its shifted position by a detent-lever 147, controlled by a magnet 148, which magnet is located in a multiple branch 139 of the spacing-circuit 139, which branch, however, does not pass through contact 142 of the shift mechanism. This detent-lever 147 holds the arma: ture 72 down when it has been attracted by its magnet, thus holding the type-wheel in its shifted position. This continues until a proper message. is transmitted to release the detent, such message being the-spacing-message, which now does not affect the spacing-magnet, circuit 139 to that magnet being broken at contact 142.
The several sectors 19 of the printing mechanism are normally held in place by lockinglevers 149. Each pawl 20 when drawn down trips the corresponding locking-lever, permit ting the sector to be drawn forward by the forward movement of the actuating device 18. Springs 150, acting upon rods 151, tend to hold the locking devices 149 in engagement with the sectors.
The springs 21 of the pawls 20 are held apart by combs 152, and thus false operation of the machine is prevented.
164, Fig. 10, designatesamotor-controlling switch, and 165 designates the contact-arm, and 166 and 167 contact-points thereof.- By this switch the motor within the casing 2 is started and stopped and its speed regulated.
Itwill be obvious that the particular printing mechanism herein illustrated and described is only one of many printing mechanisms which 1 may use, and I do not limit myself to this particular printing mechanism.
It is obvious that my invention is susceptible to numerous variations and modifications without departing from the essential principles thereof, and I do not limit myself to the particular details of construction, arrange-' ment, and operation herein illustrated and described.
What I claim is 1. In a printing-telegraph, the combination with a constantly-moving power member, printing mechanism comprising means, including selecting devices corresponding to different characters, for bringing selected charaeters into operative position, means for communicating motion from said power member to said printing mechanism, and selecting mechanism controlled by electrically-transmitted signals and determining the action of said selecting devices, of means controlling the transmission of power to said printing mechanism, operated simultaneously with the operation of the printing mechanism by said selecting mechanism.
2. In a printing-telegraph, the combination witha constantly-moving power member, printing mechanism comprising means, including selecting devices corresponding to different characters, for bringing selectedcharacters into operative position, means for communlcatlng motion from said power member to said printing mechanism, and selecting mechanism controlled by electrically-transmitted signals and determining the action of said selecting devices, of means controlling the transmission of power to said printing mechanism, said means operated by the selecting mechanism simultaneously with the operation of the printing mechanism thereby.
3. In a printing-telegraph, the combination with a constantly-moving power member, printing mechanism comprising a rotary type member and means for rotating the same and for obtaining impressions therefrom, driven from said power member and including select ing devices corresponding to different charac-.
ters, and selecting mechanism determining the action of the printing mechanism and controlled by electrically-transmitted signals, of means controlling the transmission'of power to the printing mechanism from said power member, said means arrangd to be operated sim ultaneously with the operation of the printing mechanism by said selecting mechanism.
4. In a printing-telegraph, the combination with a' constantly-moving power member, printing mechanism comprising a rotary type member and means for rotating the same and for striking the same against a surface to be printed upon driven from said power memher and includingselectingdevices corresponding todiiferent characters, and selecting mechanism determining the action of the printing mechanism and controlled by electricallytransmitted signals, of means controlling the transmission of power to the printing mechanism from said power member, said means arranged to be operated simultaneously with the operation of the printing mechanism by said selecting mechanism.
5. In a printing-telegraph, the combination with a constantly moving power member,
printing mechanism com prising a rotary type member and means for rotating the same and for obtaining impressions therefrom driven from said power member, and tumblers corresponding to diflerent characters determining the degree to which said type member is rotated, and selecting mechanism for operating said tumblers controlled by electricallytransmitted signals, of means controlling the transmission of power to the printing mechanism from said power member, said means arranged to be operated simultaneously with the operation of said tumblers by the selecting mechanism.
6. In a printing-telegraph, the combination with a constantly moving power member, printing mechanism comprising a rotary type member and means for rotating the same and for striking the same against a surface to be printed upon driven from said power memher, and tumblers corresponding to different characters determining the degree to which said type member is rotated, and selecting mechanism for operating said tumblers controlled by electrically-transmitted signals, of means controlling the transmission of power to the printing mechanism from said power member, said means arranged to be operated simultaneously with the operation of said tumblers by the selecting mechanism.
7. In a printing-telegraph, the combination with a constantly-moving power member, printing mechanism arranged to be operated therefrom, and selecting mechanism determining the action of the printing mechanism and comprising an electrically-controlled sunflower, a separator-relay, selecting-circuits, primary and secondary selecting-relays and restoring means, of means for connecting and disconnecting operatively the power member and the printing mechanism, said means arranged to be operated simultaneously with the operation of the printing mechanism by said selecting mechanism.
8. In a printing-telegraph, the combination with a constantly-moving power member, printing mechanism arranged to be operated therefrom, and selecting mechanism determining the action of the printing mechanism and comprising an electrically-controlled sunflower, a separator-relay, selecting-circuits, primary and secondary selecting-relays and restoring means, of means for connecting and disconnecting operatively the power member and the printing mechanism, said means operated by the selecting mechanism simultaneously with the operation of the printing mechanism thereby.
' 9. In aprinting-telegraph, thecombination with printing mechanism, aplurality of printing-magnets for operating the same, and selecting mechanism for determining the particular printing-magnet to be energized controlled by electrically-transmitted signals, of a power member, a transmission device for communicating motion from the power member to the printing mechanism, and a magnet for controlling the operation of the printing mechanism from said power member, controlled by said selecting mechanism.
10. In a printing-telegraph, the combination with printing mechanism, a plurality of printing-magnets for operating the same, and selecting mechanism for determining the particular printing-magnet to be energized, of a power member, a transmission device for communicating motion from the power member to the printing mechanism, means operated thereby for effecting spacing independent of the operation of the printing mechanism, and a magnet for controlling the operationof said printing mechanism and spacing means from said power member, in circuit with each of said printing-magnets and also in a circuit arranged to be completed through said selecting mechanism independent of said printing-magnets.
11. In a printing-telegraph, the combination with printing mechanism, printing-magnets for operating the same and selecting mechanism for determining the particular printingmagnet to be energized, said magnets located in independent circuits arranged to be completed independently through said selecting mechanism and having a common return, of a power member, atransmission device for communicating power from the power member to said printing mechanism, means operated by said power member for effectingspacing independent of the operation of the printing mechanism, and a magnet controlling the operation of said spacing mechanism, in the common return of the printing-magnet circuits, and likewise in a circuit arranged to be completed through the selecting mechanism independent of said printing-magnets.
12. In a printing-telegraph, the combination with printing mechanism, printing-magnets for operating the same, and selecting mechanism for determining the particular printing-magnet to be energized, and comprising an electrically-controlled sunflower, a separator-relay, selecting-circuits, primary and secondary selecting-relays and restoring means, of a power member, a transmission device for connecting and disconnecting operatively the power member and the printing mechanism, and a magnet for operating said transmission device, controlled by said selecting mechanism.
13. In a printing-telegraph, the combination with printing mechanism, printing-11mgnets for operating the same, and selecting mechanism for determining the particular printing-magnet to be energized, and comprising an electrically-controlled sunflower, a separator relay, selecting-circuits, primary and secondary selecting-relays and restoring means, of a power member, a transmission device for connecting and disconnecting op- IIO eratively the power member and the printing mechanism, means operated thereby for effecting spacing independent of the operating of the printing mechanism, and a magnet for operating said transmission device, in circuit with eachof said printing-magnets and also in a circuit arranged to be completed through said selecting mechanism independent of said printing-magnets.
14. In a printing-telegraph, the combination with printing mechanism, printing-magnets for operating the same, and selecting mechanism for determining the particular printing-magnet to be energized, and comprising an electrically-controlled sunflower, a separating-relay, selectingcircuits, primary and secondary-selecting-relays and restoring means, said printing-magnets loeatedin independent circuits arranged to be completed independently through said selecting mechanism and having a common return, of a power member, a transmission device for connecting and disconnecting operatively the power member and the printing mechanism, means operated thereby for effecting spacingindependent of the operation of the printing mechanism, and a magnet for operating said transmission device, in the common return of the printing-magnet circuits, and likewise in a circuit arranged to be completed by the selecting mechanism independent of said printing-magnets.
15. In a printing-telegraph, the combination with a power member, an actuating device arranged to be operated thereby, a transmission device for connecting and disconnecting operatively the power member andactuating device, a plurality of tumblers, corresponding pawls, and printing-magnets each adapted when energized, to bring a corresponding pawl into engagement with said actuating device, of means actuated by said pawls when themselves operated by said actuating device, for operating their corresponding tumblers, printing means operated by the tumblers and adapted to print a character corresponding to whichever tumbler is operated, and a magnet controllingisaid transmission device.
I 16. In a printing-telegraph, the combination with a movable actuating device, means move in proximity each to a corresponding pawl, and each provided with means for engaging its corresponding pawl and moving the same into engagement with said actuating device.
17. In a printing-telegraph, the combination with a movable actuating device, means for driving the same, a plurality of pawls adapted to engage said actuating device, but normally disengaged therefrom, springs normally holding said pawls out of such engagement, and combs for said springs, of printingmagnets, and means operated thereby for drawing the several pawls into engagement with said actuating device, printing means, and means for operating the same actuated by the several pawls.
18. In a printing-telegraph, the combination with a movable actuating device, means for driving the same, a plurality. of pawls adapted to engage said actuating device, but normally disengaged therefrom, springs normally holding said pawls out of such engagement, sliding rods for actuating the several pawls, guide-bars therefor, and printing-magnets and means operated thereby for operating the several rods.
19. In a printing-telegraph, the combination with printing mechanism, a plurality of printing-magnets for operating the same, se-
lecting mechanism for selecting the particular printing-magnet to be energized, a sliding carriage, and means for feeding the same during the printing, of a powershaft, carriage-return mechanism adapted to be operated thereby but normally disengaged therefrom, a carriage-return magnet likewise controlled by said selecting mechanism, and means actuated by said oarriage-retu rn magnet for operatively connecting the carriage return mechanism and power-shaft.
20. In a printing-telegraph, the combination with printing mechanism, a plurality of printing-magnets for operating the same, selecting mechanism for selecting the particular printing-magnet to be energized, a sliding carriage, and means for feeding the same during the printing, of apower-shaft, carriage-return mechanism adapted to be operated thereby but normally disengaged therefrom, a carriage-return magnet located at the front of the machine in front of said printing mechanism, said magnet likewise controlled by said selecting mechanism, an armature for said magnet, and a lever operated thereby,-connected .With said carriage-return mechanism and arranged to bring the same into operative engagement with said power-shaft.
21. In a printing-telegraph, the combination with printing mechanism,-printing-magnets for operating the same, selecting mechanism determining the action of the printingmagnets, and comprising an electrically-controlled sunflower, a separator-relay, selectingcircuits, primary and secondary selecting-relays and restoring means, a sliding carriage, and means for feeding the same during the printing, of a power-shaft, carriage-return mechanism adapted to be operated thereby butnormallydisengagedtherefrom,acarriagereturn magnet likewise controlled by said selecting mechanism, aud means actuated by 22. ha printing-telegraph, the combination with a carriage, adapted to be moved back and forth during the operation of the machine, ratchet-operated paper-feed devices thereon, and a rod for operating said paperfeed, located upon said carriage iii a position substantially parallel to the direction of motion of the carriage, of a paper-feed magnet, printing mechanism, printing-magnets therefor, selecting mechanism determining the action of the printing and paper-feed magnets, and comprising an electrically-controlled sunflower, a separator-relay, selecting-circuits, primary and secondary selecting-relays and restoring means; and means operated by the paper-feed magnet for operating the said rod on the carriage.
23. In a printing-telegraph, the combination with a type-wheel provided with a plurality of rows of characters and movable axially and rotatively, and likewise movable bodily for forming the impression, printing mechanism for rotating said wheel to bring the desired character opposite the printing position, printing-magnets for operating said printing mechanism, a shift-magnet, and means operated thereby for moving said type-wheel axially comprising means for permitting the bodily movement of said wheel by which the impresssion is given, of selecting mechanism for determining the action of said printing and shift magnets, comprising a separator-relay, selecting-circuits, primary and secondary selecting-relays and restoring means.
.24. In a printing-telegraph, the combination with a constantly-moving power member, printing mechanism comprising means, including selecting devices corresponding to dilferent characters, for bringing selected characters into operative position, and means, including a clutch, for communicating motion from said power member to said printing mechanism, of a plurality of printing-mag nets, each corresponding to and arranged to bring into operation one of said selecting devices, and another magnet and clutch-closing means operated thereby to close said clutch.
25. In a printing-telegraph, the combination of a constantly-moving power member, a clutch driven thereby, printing mechanism, and means for driving the same driven from said clutch, of means normally holding the clutch open, a releasing member arranged when operated to permit said clutch to close, and an electromagnet operating said releas ing member.
In testimony whereof I aflix my signature in the presence of two witnesses.
JOHN (J. BARCLAY.
Witnesses:
B. STEIN, FRANK Krr'roN.
US21591604A 1904-07-09 1904-07-09 Printing-telegraph. Expired - Lifetime US787608A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US21591604A US787608A (en) 1904-07-09 1904-07-09 Printing-telegraph.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21591604A US787608A (en) 1904-07-09 1904-07-09 Printing-telegraph.

Publications (1)

Publication Number Publication Date
US787608A true US787608A (en) 1905-04-18

Family

ID=2856098

Family Applications (1)

Application Number Title Priority Date Filing Date
US21591604A Expired - Lifetime US787608A (en) 1904-07-09 1904-07-09 Printing-telegraph.

Country Status (1)

Country Link
US (1) US787608A (en)

Similar Documents

Publication Publication Date Title
US1904164A (en) Signaling system and apparatus therefor
US1970566A (en) System and apparatus for composing machines
US1548168A (en) Printing telegraphy
US787608A (en) Printing-telegraph.
US2802048A (en) Selecting and printing apparatus
US2737545A (en) Method and device for transmitting code signals
US1811132A (en) Selective system and apparatus therefor
US1399993A (en) Printing-telegraph
US1374606A (en) Printing telegraphy
US487227A (en) eaton
US748970A (en) Automatic signaling apparatus
US487229A (en) eaton
US128627A (en) Improvement in printing-telegraphs
US2323155A (en) Printing telegraph receiver
US1623809A (en) Printing telegraphs
US1456534A (en) Printing telegraphy
US325702A (en) sheehy
US1814902A (en) Telegraph system for dividing received intelligence into groups
US436740A (en) Of same place
US689754A (en) Page-printing machine.
US470768A (en) Thirds to george d
US1635486A (en) Printing or selecting telegraphs
US1540710A (en) Printing telegraphy
US758732A (en) Printing-telegraph.
US443134A (en) Printing telegraph