US2161840A - Selecting and typing means for printing telegraphs - Google Patents

Selecting and typing means for printing telegraphs Download PDF

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Publication number
US2161840A
US2161840A US64467A US6446736A US2161840A US 2161840 A US2161840 A US 2161840A US 64467 A US64467 A US 64467A US 6446736 A US6446736 A US 6446736A US 2161840 A US2161840 A US 2161840A
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United States
Prior art keywords
type
typewheel
code
spring
tape
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US64467A
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English (en)
Inventor
Adams Arthur Herman
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AT&T Corp
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Western Electric Co Inc
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Priority to US64467A priority Critical patent/US2161840A/en
Priority to GB22898/37A priority patent/GB491352A/en
Priority to NL83952A priority patent/NL58018C/xx
Priority to DE1937I0059003 priority patent/DE701607C/de
Priority to FR835507D priority patent/FR835507A/fr
Priority to US213745A priority patent/US2236663A/en
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Publication of US2161840A publication Critical patent/US2161840A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J1/00—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies
    • B41J1/22—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies with types or dies mounted on carriers rotatable for selection
    • B41J1/24—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies with types or dies mounted on carriers rotatable for selection the plane of the type or die face being perpendicular to the axis of rotation
    • B41J1/28—Carriers stationary for impression, e.g. with the types or dies not moving relative to the carriers
    • B41J1/30—Carriers stationary for impression, e.g. with the types or dies not moving relative to the carriers with the types or dies moving relative to the carriers or mounted on flexible carriers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/18—Mechanisms for rendering the print visible to the operator
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L17/00—Apparatus or local circuits for transmitting or receiving codes wherein each character is represented by the same number of equal-length code elements, e.g. Baudot code
    • H04L17/16—Apparatus or circuits at the receiving end
    • H04L17/26—Apparatus or circuits at the receiving end using aggregate motion translation

Definitions

  • This invention relates to improvements in selecting and typing means for automatic typing machines, especially for that class of typing machines electrically operated at a distance and A commonly called printing telegraphs and tickers,
  • page printers as distinct from tape printers.
  • Modern page printing telegraphs mainly fall into two classes: (a) typebar printers, in which individual type bars like those of typewriters are caused to strike the paper. Usually this class uses an ordinary typewriter ribbon and makes carbon copies. (b) typewheel printers, in which a Wheel, or segment, having raised typefaces on its surface, is selectively moved to present the desired typeface to the paper. In these the typefaces are usually directly inked and carbons are not made.
  • Typebar printers generically offer advantages over typewheel printers in better visibility of matter being typed, (since the typewheel usually covers several letters) and in better ability to produce manifold or carbon copy Work. They require, however, moving either the paper, usually on a platen or cylinder, much as in a typewriter, which is undesirable for operating reasons, or else moving a quite large and complex basket or frame of typebars and of selecting and 30. operating devices. In either case they require to be materially larger. They a-re also inherently more expensive.
  • Typewheel page printers inherently smaller and less costly because having the simple typewheel in place of the many typebars and because not having so large a printing carriage to traverse, have a further cost advantage in being able to use certain simpler and cheaper selecting mechanisms.
  • One of the difficult problems in combining the ribbon printing and manifoldingfeatures of the '5 typebar type with the compactness and simpler selection of the typewheel type is to keep low enough the mass or moment of inertia of the type member with the many individually movable types it carries.
  • the types may not tip or change in angle rapidly as 4they are advanced to the paper, else in some cases the top of the character and in other cases the foot will strike the harder and give shaded printing.
  • the prior art type carryingrmembers most successful for manifolding are arranged to permit the individualtypes to slide in guides. This requires relatively long bodies or stems on the types and a relatively large frame, making the type member heavy and hard to position quickly without excessive shocks or stresses.
  • Type members in disc form bearing types on ⁇ the end of pivoted radial arms have been used, 25 but the arms are necessarily very short so that this design-though lighter-is not capable of good unshaded printing on papers and manifolds variable in thickness.
  • One feature of my invention solves this problem by the provision, in connection preferably with the lighter disc form of type carrying member, of a common type steadying or guiding member having either a parallel motion or a long radius rocking motion, to which the selected type only is locked by the printing bar, whereby very short stemmed pivoted types may individually be advanced with little or no angular change.
  • stops selectably set, for each desired position, against which an arm of the type member may be urged by a spring, a friction, or any not positive means of applying power to move the type member an indenite distance.
  • the type member may either continue on around, if circular, after the last selected stop has been removed from its path, or may be returned to a starting point.
  • v(2) There may selectively and additively be imparted to the type member one or more of-v several denite amounts of displacement from a fixed or Vdatum position.
  • the selectively energized positioning means for the type member may supply also the motive power to move it.
  • the motion of the type member, when using this selecting method may be, and preferably is, in either direction, the direction depending upon whether the total or additive displacement from thev datum point determined by one code is larger or smaller than that determined by the preceding code.
  • the type member may move from anyvposition directly to any other, neither returning to the datum point nor continuing a rotation. This is an important advantage, as regards time, shock and energy in type member displacement.
  • My invention belongs broadly in class 2 as to selective type member positioning method, but uses, as will be seen, a flexible non-stretching tape and selectably movable looping pulleys for constraining the tape to a longer or shorter path, i. e., for effectively shortening or lengthening it.
  • My exible tensile means for additively imparting selected amounts of displacement to any member to be positioned lend themselves, with almost no added parts, to positioning a member on a movable (or even on a moving) carriage justas easily as one mounted on a fixed frame.
  • the same simple tape used as a selective displacement totalizing means and as a means of transmitting totalized selected displacements tothe type member on the moving carriage is equally adapted to transmit a case shift displacement to the type member which preferably carries the upper and lower case characters in two distinct areas. This makes the case shift consume much less power and be completed much more quickly than where the massive platen is raised or lowered, and makes theaverage movements of the type member materially less than where the two sets of charactersV alternate.
  • a further real advantage of the preferred form of my page printer with disc shaped type member is that it practically overcomes the advantage the type bar printer has heretofore had over the type wheel printer matter being typed.
  • the printing pointV on my preferred disc-shaped type member is so chosen below and to the left of top center that both the line and the letter last completed are always legible.
  • Another object is to provide a printer of thev type member or carrier-of-types class in which all characters already printed are legibly visible.
  • One object is to provide a printing telegraph machine with the types, in a disc form of carrier, oriented at such an angle and struck against the paper when at a point so much to the left and be- Y low the top center as to leave visible the line and the letter last printed.
  • Another object is the construction of an unusually simple and low cost means selectively to position a type member or other recording member in a telegraph receiver.
  • Anotherobject is the provision in a telegraph printer of one very light ilexible lamentary member as a common means to totalize selected elements of displacement from a datum and as a means to transmit to a type member such totalized displacement.
  • Another object is the provision of a page printer in which one light lamentary member serves to totalize selected elements of displacement and to transmit the totalized displacement toV a type member on a moving carriage.
  • Another object is the same as the last with the same iilamentary member also serving to transmit to the type member a case shift displacement.
  • Another object is the provision of a light and simple selective moving means for a type carrying member or wheel which will urge the latter from J:Dine selected position to the next, in either direcion.
  • Another object is the provision of such a selective type member positioning means comprising several independently and selectively operable movers, these movers additively imparting to the type member each its own predetermined amount of displacement from a datum point.
  • Another object is the provision in a manifolding printer of an exceptionally light and compact wheel or disc of types, each type being individually movable to printing position on a radius exceeding the radius of the disc in order to avoid carriage and a fixed axis paper roller whereby the overall width is reduced and paper handling and paper tracking adjustments are simplied.
  • Another object is the provision of a page print- Y er yielding regularly spaced typing by accurately registering the selectively positioned type carrier just before striking each type.
  • Another object is to provide ⁇ a shockless stopping against one spring forcefof a lightweight type carrier moved by an .opposing spring force. Another object is the provision cheaply of a time overlapin a printer-permitting occasional codes to be sent on time centers less than the mechanical cycle time of the printerby means of code storage magnets capable ofholding their armatures by residual magnetism until knocked down. Another object is to construct a moving or page printing typewheel carriage for ribbon printing that is entirely devoid of selecting means.
  • Another object is to provide a typewheel in which the letters or so-called lower case type are in one contiguous group and the figures and so-called upper case type are in another contiguous group and to provide .as a. case shift a mere turn .of the typewheel froml one group to the other to the end of approximately halving average typewheel travel over that arrangement where upper and. lower case type alternate, and to. the
  • Fig, 1 is a sectional elevation, on line V-V of Fig 2, being a View, from the rear of the machine, of the main typewheel selective positioning means. 4
  • Fig. 2 is a sectional elevation on line U-U of Fig. l.
  • Fig. 3 is a sectional elevation of the typewheel and platen, showing typing barand centering pin, taken along line W-W of Fig. l.
  • Fig. 3A is an enlarged detailV of the type hinge not clearly intelligible in Fig. 3.
  • Fig. 4 is a sectional elevation, like Fig. l, looking from the rear of the machine, but on line Z-Z of Fig. 2, showing letter spacing and carriage returning mechanism not visible in Fig. 1.
  • Fig. 5 is an enlarged detail of the typing bar and centering pin shown in Fig. 3.
  • Fig. 6 is a sectional elevation on line Y-Y of Fig. 1 showing particularly the line spacing mechanism.
  • Fig. '7 is a sectional detail on line T T of Fig. 1.
  • Figs. 8 and 9 are details of one of the five code storing magnets.
  • FIG. 10 is a sectional detail on line X--X of ,f Fig. 4.
  • Fig. 11 is a diagrammatic view of one form of typewheel and its relation to matterbeing typed.
  • Fig. l2 is a timing diagram showing cam rela- Fig. ⁇ 15 isa view from the front of the machine of the arrangement of type on the Wheel of Fig.
  • Fig. 16 is a ⁇ diagram of a relation of tape and typewheelalternative to that shown in Fig. 1.
  • Y designates a platen or paper roller, 2 a paper guide, .3, 3 pressure rollers to cause a paper or papers to hug platen I.
  • These paper handling parts are not shown or described in detail, being very Well-known inthe typewriter and printer arts. Platen I and associated paper handling parts do not move axially in this machine. This isadvantageous for several reasons, It is ⁇ harder tocause paper to "track properly on a moving platen, especially if fed continuously from rolls. It is less fatiguing to read messages coming in on paper that is stationary. Reciprocation of the long and m'assive ⁇ paper and platen also takes considerable space and consumes more energy and time .than the reciprocation of the light typewheel'carriage to be described. 4, IlA are carriage rails extending from side to side of the machine.
  • 0 preferably of moulded Bakelite or of light metal, runs on stud 6 and is confined axially between stud head 8 and washer '
  • Typewheel body I8 integrally carries two circular flanges, I
  • a tape 4Ill which is preferably of very thin spring steel, but may be of Woven linen rubberized, or of any exible and relatively non-extensible and non-hygroscopic construction, is attached at one end on drum I3 and Wraps about it at least a full turn when not extended.
  • rear flange I2 In rear flange I2 are a suitable number of accurately spaced bell-miouthed centering holes I5, one for each selectable position of the typewheel.
  • 6 is arranged to enter holes
  • 09 bearing cam roller III) is pivoted on carriage frame 5 and is raised against spring and hammer spring I2
  • 2 slides axially along the central square portion of shaft II5, which is driven from the main shaft 85 by spiral gear pair IIB, vertical jack shaft y
  • 5 also carries fixed on it cam
  • 1 surrounds boss 9 and engages a hole in frame 5 at the base. of boss 9 with its one end and typewheel body l0 with its other end.
  • a number of like holes for engaging the'flrst end may be distributed about boss-9 inframe 5 to permit of adjusting the spring torque.
  • are type having stems or bodies 22. These bodies, which are preferably proportioned thin and flat end in oifset or Z shaped ends 23 as shown in Fig. 3A, which are hinged or hooked in radial slots 25 in type'guide disc 20.
  • the type bodies 22 of alternate types are made slightly longer, bringing alternate slots 25 in disc 20 in diierent circles.
  • the oifset or Z shaped end of one of the longer bodied types is shown at 23 in Fig. 3.
  • the outer rim of guide disc 20 is formed back to surround flange as shown, and this formed back portion is slotted to receive the boides 22 of all the types 2
  • guide disc 20 which may be of Duralumin or of a light embossed sheet metal construction-falls on the back of any type 2
  • 1 urges typewheel body
  • Studs 42-42 where projecting beyond frame plate 48, carry looper pulleys 3
  • This plate is removable to facilitate the threading of tape 4 and replacements in case of need.
  • a second plate 58 of the same thickness as 51 and in the same plane, similarly confines and guards shift pulley 29 and tape 4 upon it.
  • Cover plates 51 and 58 are attached to frame plate 48 by screws and spacing collars as best seen in Fig. 10, these screws and collars being all alike and numbered 60 and 59V respectively. To simplify the drawing, only numerals 6i) are shown on Fig. 1, where the location of these screws is best seen.
  • the selective engaging means will be described later.
  • is then (as shown) at the top of its path with its stud 42 in contact with the accurately located top of opening 52.
  • Pulley 32 (as not shown) is at its low point with its stud 42V in contact on the accurate lower edge of opening 53.
  • Pulley 33 is at its top (as not shown) with stud 42v contacting the top of opening 54.
  • Pulley 34 (as not shown) is at its low point with stud resting on lower edge of opening 55.
  • Pulley 35 is at top with stud 42 touching top of opening 56.
  • Pulley 30 rides on a stud 42 in arm 10 and is guarded and guided between frame plate 48 and cover plate 5.1 exactly like looper pulleys 3l to 35 except that arm 10 does not move but remains resting on eccentric 69, being always drawn down by the tension of tape I4.
  • This datum position or shortest free tape condition is never assumed in operation. It represents the unusable code of five spacing impulses. It is an arbitrary reference and adjustment point. Having established it, we may now assume that some combination of the selectable arms 6I to 65 is to be moved to the right-such as 5I, 62 and As will be seen from a study of the cam relations-best seen in timing diagram Fig. 12 at the time power bar 66 moves to the right, centering pin I6 is in a hole I5 and is locking the typewheel. On the assumption of a start from datum position, the typewheel will be locked there.
  • the typewheel being lockedin datum position by hypothesisarms 6I, 62 and 65 on operating take up amounts of tape equivalent to 1 plus 4 plus. 16:21 typewheel spaces. Thisis at rst drawn oif the retractor drum 3.1 against the tension of spring 39. The timing is such that, when about half of the 21 units has drawn oil? drum 31", centering pin I6 releases the typewheel.
  • Spring 39, through tape I4 and drum I3 generates the greater torque at the typewheel by about two to one and overcomes spring I.1.
  • the typewheel spins clockwise as the 8 or '10 units. of tape withdrawn from retractor drum 31 is retracted.
  • the preferred typewheel is so light, for one having independent manifolding types, due to the construction described, that high speeds may be obtained with relatively weak springs, i. e., with low energy.
  • the overthrow isf opposed by spring I1 which has been increasing more in tension the farther and faster the tape and spring 39 have spun the typewheel.
  • spring I1 which has been increasing more in tension the farther and faster the tape and spring 39 have spun the typewheel.
  • spring I1 which has been increasing more in tension the farther and faster the tape and spring 39 have spun the typewheel.
  • a stopping of the typewheel is 'thus obtained in which the stored energy is dissipated fully as quickly as is needed for high speed typing, fyet without shock.
  • the 4centering pin I6 next darts into the hole I5 at position 2 I'- this accompanies and very slightly precedes the blow of the typing hammerandthe bell mouth of hole I5 with the pointed end of rpin I6 enforces correct centering if the amplitude of the typewheel oscillation at that instantis only less than one type space. Letter numbernZI is printed.
  • springs 8I, B2 ⁇ and 19 respectively retain the three operated looper le- A vers in their existing or long loop positions Vand maintain snugness in tape I4.
  • Springs 11 and 16 would act in the same way, when needed, to re- ⁇ bered position and to a lower numbered one.
  • the code receiving and storing means used and -the means to make these control the selective pol' through suitable gearing an electric motor with a flywheel and a governor, a synchronous motor or any ladequate source of power of reasonably constant speed. ,The speed of shaft 83 depends.
  • 84 is any well-known one-revoluv tion clutch operable by either mechanical or electrical means to clutch shaft 85 to shaft 83 during one revolution and then to cause shaft 85 to stop untill or unlessv ⁇ clutch- 84 is again or has been again operated.
  • Fig. 6y shows at Rin end elevation a stripof 5 code .storing electromagnets. ⁇ The detail of one yof these is better shownV in Figs. 8 and 9, because In Fig. 2,
  • core 89, 89 are spool heads on the core and 90 ai magnet coil between the spool heads.
  • is a hardened steel screw threaded into core 88 to hold it to pole piece 81.
  • the core and the pole piece are of equal height. Lying at and iron to iron on their end surfaces is shown armature 92 having. a central tongue 93 protruding through a clearance hole 98 in brass angle 86.
  • Tongue 93 is drawn outwards and upwards as shown by a light spring 94 adjustable by bending spring support lug 95.
  • Angle 86 vis tapped for adjustable armature back stop screw 95 with lock nut.
  • VArmature 92 carries brass spring holder 99, on a narrow lug on which is forced a close wound coil of fine spring wire
  • One end of the wire extends axially beyond the coil and then bends at right angles to form sloping switch end
  • each of the five magnets R comprises two windings.l There is a main operating winding for each magnet rconnected to a well-known receiving distributor to receive each the impulse of a dif-' ⁇ ferent code period ortime channel.
  • ve code storing magnets and the whole described method of receiving and storing codes is not broadly new, and forms but a negligible part of this invention.
  • magnets made purposely of high residual magnetism with a cle-energizing or knockdown impulse is a convenient and novel cheap device of this sort.
  • Any man skilled in the art can adapt to the raising ,or lowering, according to a code, of wires
  • Fig. 11 shows the typewheel, of which the various numbered parts have been identified, in its relation to the matter being typed.
  • at position P is the one about to be printed.
  • the last letter printed, T is legible although the lowest part is not visible. It is convenient, ⁇ to maintain legibility of the last letter while avoiding a ribbon shifting device, to presen-t a narrow typewriter ribbon
  • 33 are carried on rod
  • Arrangements for taking up and letting off type- ⁇ writer ribbons and for reversing them are veryI many and well-known. One of them may be used here.
  • the sole peculiarities are that the ribbon feeding movements of the supply spools in this machine are preferably to be caused by the carriage return only, rather than by carriage steps or spaces, that these movements preferably should not be an integral multiple of the letter spaces and that the ribbon should not be slack.
  • the typewheel is displaced on all so-called stunt codes exactly as if they represented characters.
  • This offers no obje'etions and avoids the construction of a device to prevent the raising of the typing hammer and centering pin on the stunt codes.
  • a device might be alatch on the rear end of type hammer 28 in place of cross pin
  • the word space, for which any desired code may be chosen, say code 27, is merely a blank or typeless position in the typewheel.
  • the position S in Fig. l1 may be the word space, though no xed code and order of letters has been assumed for this machine, since its adaptability to cooperation with existing arrangements is paramount.
  • 36 is so notched that it cannot fall unless all ve of arms 6
  • the notches are of such length that they do not limit the further movement of pins
  • 36 falls makes the code to drop the'latter be 1 plus 2 plus 4 plus 8 plus 16:31, which is the code above arbitrarily assigned.
  • 35 has one narrow notch
  • 35 determines Ythe swinging to' the left of shift pulley 29, and hence the taking up of 31 units of length of tape
  • 48 carrying pulley 29 on a stud projecting through plate 48, is pivoted at
  • This lever is slotted through, except at the two ends, as shown in Fig. 2.
  • 50 with roller
  • 52 causes it to follow cam
  • 50 is formed with an overhang or beak
  • 48 is a pin
  • 61 is madefast to ratchet
  • 10 reciprocates arm
  • 13 in the teeth of ratchet 12 is pro-vided to prevent feeding the carriage too far and doing damage if an operator fails to send carriage return in time.
  • 18 when turned counterclockwise raises pawls
  • 18 is moved to do this by live pawl
  • 31 by bell crank arm
  • 68 then catches and movers dogr
  • Fig. 16 is diagrammatically shown an alternative connection of tape I4, in which both ends wrap on the drum I3 of the typewheel.
  • the advantage of such an arrangement is the lesser accuracy required in the stroke of the looper pulleys and the balanced or pure torque applied to the typewheel.
  • IIIA is the typewheel body mounted on stud 6A, I2 the rear flange with centering holes I5, I4 the tape and
  • a non-rotating type clamping guide 20A is pivoted at L on va suitable lug of carriage 5, and provided with a strong spring 20A and a stop 21A.
  • a type member In an automatic typing mechanism, a type member, a flexible tensile means to position said type member, a centering means more accurately to position said type member, a plurality of selected means cumulatively determining a longitudinal displacement of' a portion of said tensile means, a printing presser, and means for operating said printing presser when said centering means has positioned said type member.
  • apaper support a carrier of types adapted to ⁇ be displaced selectively to present a desired type in printing relation to paper on said support, means to move said carrier in one sense, a flexible nonextensible tensile means to move said carrier in an opposed sense, a plurality of loopers each adapted to take up a predetermined loop of said tensile means to displace said carrier to predetermined positions, a plurality of looper movers, means selectively to render said looper movers operative under control of a selecting device and means 'to center and lock said carrier in any of several positions.
  • a type carrier having a plurality of type members, a
  • connection including a a flexible non-extensible filament and a pulley, a carrier locking means for locking said type carrier in position for printing of a selected type member thereof, and a type presser for pressing a lselected type member for effecting printing thereof.
  • a traveling carriage including a type carrier displaceable thereon, a plurality of selectably movable members not on said lcarriage adapted severally and jointly to displace said carrier on said carriage different amounts through an equalizer, said equalizer including a non-extensible filament with both ends attached on said carriage and a plurality of pulleys not on said carriage.
  • a carrier for a number of type faces a typing bar to strike said type faces against a paper, a belt to movesaid carrier to present diierent type faces before said bar, a plurality of loopers capable of additively pulling said belt predetermined amounts, selective means to render said loopers operative in accordance with code designations, and a centering locking means for said carrier effective before said typing bar strikes and during a portion of the operating time of said loopers.
  • a pivoted type carrier having a plurality of type members, a striker for striking said type members individually to effect printing thereof, means for operating said striker, a driving means for said type carrier, a drum on said type carrier, a flexible tensile member wrapped on said drum to pull said type carrier around against said driving means, movable loopers in contact with said tensile member each extending a predetermined bight therein when moved, a centering means for accurately positioning said type carrier, and means for operating said type member before said striker is operated.
  • a set of type faces, a pivoted carrier for said set, a spring to rotate said carrier in one direction, a exible tensile "ai o agieren! member'to-rotate itin the other direction to posi- Y cording means, a registering means for accurately'positioning said pivotedcarrier and for holding itduring part of the moving of said loopers, and a printing-bar to make an impressionofthat one of said 'set of type faces positioned before it through vsaid'tensile member and said registering means.
  • Y and severalttape take-up means selectively operable, rand registering means for supplementing ksaid selective positioning.
  • a stronger spring a limit stop for the latterga type member a flexible tensile connection between said type member and said stronger spring, means selectably to vary the eiifective.length"v of said tensile connection, means including said springs to bring said type member to rest where said weaker spring is stopped by said tensile connection' to said stronger spring', Yand registering means for said type member.
  • a weaker spring In an automatic Y typing mechanism, a weaker spring, a stronger spring, a flexible tensile connection to the latter, an action limit for said stronger spring, a type member urged by said weaker spring and stopped by said flexible tensile connection, and means to take up or let out seleoted lengths of said tensile connection.
  • a printing telegraph machine for printingv upon a-page of paper and comprising in combination, ⁇ atraveling carriage including a disc shaped rotatable'carrier having a plurality of holes theref in, a plurality. of peripheraily. arranged individuiV ally hinged types on said carrier each attached at an angle toitscarrier radius and comprisingV lower and upper case charactersin twof-jsepf. arateA groups sequentially, a typing bar on said carriage, means for causing the typing barY toV Y individual hinges, atype registeringrspnr for engaging one of the holes in said carrier to register'it before.
  • said bar drives: one of said types to printingV position and remaining insuch Iengagement for a dwellthereafter, a cushion stopV for said typing bar to retract at once, said bar ⁇ from the extreme ⁇ printing position-a home spring urging said rotatable carrier ⁇ towarda home' ⁇ position, a drum on said rotatable carrier, atapegfas-l tened to' and wrapping onY said drinnY in the sense to-opposeits tensile pull to Lsaid home spring and extending over1rollers to another fastening on said traveling carriage, five loopers for engaging withrsaid tape and Vcapable respectivelyofy ex-Y tending bights therein of one, ⁇ two, four, eight, and sixteen units of length' for causingone, two,
  • resilient retractile means V having itsfretractile ,said powerfmeans during the"mentioned 'dwell an'd for storing energy' 'fromk said' 7 power means for rotating said carrier against said home spring after the dwell, a shift looper for taking up more than twenty-six units of said tape causing said carrier to maintain positions where one group of said types comprising characters of one case is beyond said typing bar counting toward the home position, one shift code bar, a source of power, means for operating said shift code bar for engaging said shift looper with said source of power when one combination of said live loopers is energized by said power means, a second shift code bar, and means for operating said second shift code bar for restoring said shift looper when another combination of said ve loopers is energized by said power means.
  • a traveling carriage a movable type member thereon, selective positioning means for said type member comprising a loop of tape operatively connected at one end with said type member and connected with said carriage at the other and comprising five loopers selectively operable to vary' the perimeter of said loop of tape, a carriage moving belt to restore to starting position said traveling carriage, a spring take-up for one end of said belt to cause it to restore said carriage toy starting position, means including a ratchet to advance said carriage in letter spacing steps, a holding pawl for said ratchet, a cam to disengage said holding pawl from said ratchet and a carriage return code bar operating when o-ne chosen combination is operated of said five loopers to cause to move said cam to disengage said holding pawl.
  • a traveling carriage a movable type member thereon, selective positioning means for said type member comprising a loop of tape operatively connected at one end with said type member and connected with said carriage at the other and comprising five loopers selectively operable to vary the perimeter of said loop of tape, a paper platen, a ratchet to rotate it by steps, a power-driven cam, a line space code bar operating when a chosen combination is operated of said five loopers to connect said power-driven cam to said ratchet.
  • a movable type carrier having a plurality of type members and having a number of selectable stopping positions, actuating means for urging the type carrier in one direction for moving said type carrier tothe selectable stopping positions, biasing means for constantly urging the type carrier in an opposite direction with a force weaker than that of the actuating means for cushioning the stopping of the type carrier when it is, moved to a selected stopping position by the: actuating means.
  • a movable type ⁇ carrier having a. plurality of type members, a type presser for pressing said type members to eiect printing thereof, actuating means for moving the type carrier into position for printing by said type presser and a selected type member, said actuating means including a spring, a flexible tensile connection between the type carrier and the spring for enabling the spring to move the type carrier, control means for selectively varying the effective length of said connection for varying the amount of movement of the type wheel, an instrumentality for limiting the action of said spring, and checking means for checking the momentum of the type carrier after it has been moved by said actuating means.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Handling Of Sheets (AREA)
  • Character Spaces And Line Spaces In Printers (AREA)
US64467A 1936-02-18 1936-02-18 Selecting and typing means for printing telegraphs Expired - Lifetime US2161840A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US64467A US2161840A (en) 1936-02-18 1936-02-18 Selecting and typing means for printing telegraphs
GB22898/37A GB491352A (en) 1936-02-18 1937-08-20 Improvements in or relating to selecting and typing means for printing telegraphs
NL83952A NL58018C (ja) 1936-02-18 1937-08-30
DE1937I0059003 DE701607C (ja) 1936-02-18 1937-09-04
FR835507D FR835507A (fr) 1936-02-18 1937-09-08 Appareils télégraphiques imprimeurs
US213745A US2236663A (en) 1936-02-18 1938-06-15 Type wheel teletypewriter

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US64467A US2161840A (en) 1936-02-18 1936-02-18 Selecting and typing means for printing telegraphs
GB22898/37A GB491352A (en) 1936-02-18 1937-08-20 Improvements in or relating to selecting and typing means for printing telegraphs
NL83952A NL58018C (ja) 1936-02-18 1937-08-30
DE1937I0059003 DE701607C (ja) 1936-02-18 1937-09-04
FR835507T 1937-09-08
US213745A US2236663A (en) 1936-02-18 1938-06-15 Type wheel teletypewriter

Publications (1)

Publication Number Publication Date
US2161840A true US2161840A (en) 1939-06-13

Family

ID=41566268

Family Applications (2)

Application Number Title Priority Date Filing Date
US64467A Expired - Lifetime US2161840A (en) 1936-02-18 1936-02-18 Selecting and typing means for printing telegraphs
US213745A Expired - Lifetime US2236663A (en) 1936-02-18 1938-06-15 Type wheel teletypewriter

Family Applications After (1)

Application Number Title Priority Date Filing Date
US213745A Expired - Lifetime US2236663A (en) 1936-02-18 1938-06-15 Type wheel teletypewriter

Country Status (5)

Country Link
US (2) US2161840A (ja)
DE (1) DE701607C (ja)
FR (1) FR835507A (ja)
GB (1) GB491352A (ja)
NL (1) NL58018C (ja)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2459821A (en) * 1943-11-29 1949-01-25 Int Standard Electric Corp Electrical code printer
US2462132A (en) * 1943-11-12 1949-02-22 Creed & Co Ltd Type wheel positioning mechanism for printing telegraph apparatus
US2769029A (en) * 1954-05-27 1956-10-30 Teleprinter Corp Telegraph printer
US2939911A (en) * 1954-11-13 1960-06-07 Int Standard Electric Corp Function controlling apparatus for printing devices
US4198169A (en) * 1977-03-10 1980-04-15 Adlerwerke Vorm. Heinrich Kleyer A.G. Type disc printer
US4239400A (en) * 1977-07-29 1980-12-16 Ing. C. Olivetti & C., S.P.A. Electronically controlled printing unit
US4313681A (en) * 1979-04-05 1982-02-02 Triumph-Werke Nurnberg A.G. Type disc positioning mechanism
US4334790A (en) * 1978-07-27 1982-06-15 Triumph Werke Nurnberg A.G. Type disc typewriter with electronic positioning control
US4386863A (en) * 1980-02-19 1983-06-07 Engineering Research Applications Printer mechanism for typewriter

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US2727944A (en) * 1953-02-26 1955-12-20 Teleprinter Corp Telegraph printer
US3461235A (en) * 1965-08-17 1969-08-12 Ibm Data transmission system and printer
US3309987A (en) * 1965-12-22 1967-03-21 Ibm Imprinting apparatus
US3356199A (en) * 1966-02-23 1967-12-05 Friden Inc Printer having type disk rotatable in a plane parallel to the printing line
US3371766A (en) * 1966-07-18 1968-03-05 Internat Telephone & Telegraph Printing apparatus
US3534847A (en) * 1966-09-21 1970-10-20 Frederick P Willcox High speed teleprinter
US3384216A (en) * 1966-12-05 1968-05-21 Friden Inc Resiliently mounted font wheel
US3442365A (en) * 1967-09-29 1969-05-06 Friden Inc Font wheel aligning device
FR1597830A (ja) * 1968-01-29 1970-06-29
US3574326A (en) * 1968-03-26 1971-04-13 Donald F Flynn Actuating mechanism for rotating printing disc
FR1591564A (ja) * 1968-04-23 1970-05-04
US3610390A (en) * 1968-06-21 1971-10-05 Frederick P Willcox Compact high-speed teleprinter mechanism
CH500073A (de) * 1968-11-07 1970-12-15 Olympia Werke Ag Druckwerk für elektrische Büromaschinen
US3707214A (en) * 1969-05-23 1972-12-26 Olivetti & Co Spa Serial printing device
DE1932481C3 (de) * 1969-06-26 1974-02-14 Ecofon Verkaufsgesellschaft Probst Kg, 8000 Muenchen Elektrische Schreibmaschine
US3805941A (en) * 1969-06-28 1974-04-23 Honeywell Inf Systems Ballistic print hammer and type-bearing element combination for on-the-fly printer
US3643774A (en) * 1969-11-12 1972-02-22 Burroughs Corp Printing mechanism with resiliently backed printing element
DE2111398A1 (de) * 1970-03-12 1971-09-30 Honeywell Inf Systems Hochleistungsseriendrucker
IT986534B (it) * 1973-06-19 1975-01-30 Olivetti & Co Spa Dispositivo di scrittura in serie con disco portacaratteri alamine flessibili
JPS5264312A (en) * 1975-11-21 1977-05-27 Oki Electric Ind Co Ltd High speed printer
US4149809A (en) * 1978-01-27 1979-04-17 Scm Corporation Typewriter spiral disc printer
JPS5725963A (en) * 1980-07-22 1982-02-10 Alps Electric Co Ltd Serial printer
EP0168486A1 (en) * 1984-01-16 1986-01-22 LAHR, Roy Jeremy Rotary print element, components thereof and drive coupling apparatus therefor
DE3414916C2 (de) * 1984-04-17 1986-06-12 Triumph Schreibmaschinen Horn & Görwitz GmbH & Co, 1000 Berlin Typenscheibe
US4674898A (en) * 1984-11-05 1987-06-23 The Fern Group, Inc. Printwheel
US4737043A (en) * 1985-07-02 1988-04-12 Xerox Corporation Impact mechanism for quiet impact printer
CN102515290B (zh) * 2011-12-09 2013-08-21 江苏通用环保集团有限公司 四索式格栅除污机

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2462132A (en) * 1943-11-12 1949-02-22 Creed & Co Ltd Type wheel positioning mechanism for printing telegraph apparatus
US2459821A (en) * 1943-11-29 1949-01-25 Int Standard Electric Corp Electrical code printer
US2769029A (en) * 1954-05-27 1956-10-30 Teleprinter Corp Telegraph printer
US2939911A (en) * 1954-11-13 1960-06-07 Int Standard Electric Corp Function controlling apparatus for printing devices
US4198169A (en) * 1977-03-10 1980-04-15 Adlerwerke Vorm. Heinrich Kleyer A.G. Type disc printer
US4239400A (en) * 1977-07-29 1980-12-16 Ing. C. Olivetti & C., S.P.A. Electronically controlled printing unit
US4334790A (en) * 1978-07-27 1982-06-15 Triumph Werke Nurnberg A.G. Type disc typewriter with electronic positioning control
US4313681A (en) * 1979-04-05 1982-02-02 Triumph-Werke Nurnberg A.G. Type disc positioning mechanism
US4386863A (en) * 1980-02-19 1983-06-07 Engineering Research Applications Printer mechanism for typewriter

Also Published As

Publication number Publication date
US2236663A (en) 1941-04-01
FR835507A (fr) 1938-12-23
NL58018C (ja) 1946-08-15
GB491352A (en) 1938-08-31
DE701607C (ja) 1941-01-20

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