US3373858A - Drawbar arrangement for selector bar translators - Google Patents

Drawbar arrangement for selector bar translators Download PDF

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Publication number
US3373858A
US3373858A US533696A US53369666A US3373858A US 3373858 A US3373858 A US 3373858A US 533696 A US533696 A US 533696A US 53369666 A US53369666 A US 53369666A US 3373858 A US3373858 A US 3373858A
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US
United States
Prior art keywords
drawbar
drawbars
selector
actuating
selector bars
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
US533696A
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English (en)
Inventor
Stahl Horst
Rekewitz Rudolf
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens Corp
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 Siemens Corp filed Critical Siemens Corp
Application granted granted Critical
Publication of US3373858A publication Critical patent/US3373858A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J7/00—Type-selecting or type-actuating mechanisms
    • B41J7/02—Type-lever actuating mechanisms
    • B41J7/04—Levers mounted on fixed pivots
    • B41J7/06—Levers mounted on fixed pivots and connected to transmission members, e.g. toothed gearing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L13/00—Details of the apparatus or circuits covered by groups H04L15/00 or H04L17/00
    • H04L13/18—Details of the apparatus or circuits covered by groups H04L15/00 or H04L17/00 of receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L13/00—Details of the apparatus or circuits covered by groups H04L15/00 or H04L17/00
    • H04L13/18—Details of the apparatus or circuits covered by groups H04L15/00 or H04L17/00 of receivers
    • H04L13/182—Printing mechanisms

Definitions

  • the invention relates to an arrangement for selectorbar translators, utilizing a plurality of drawbars, each of which is coupled directly or indirectly with a cooperable function-executing member, in which the individual drawbars are free to fall essentially perpendicularly to its operational movement, into aligned recesses in individual selector members or bars, in dependence upon the respective positions of such selector bars, thereby so swinging the selecteddrawbar that a follower or transport projec tion or element thereon is disposed into the path of movement of an actuating or drive member.
  • selector bar translators are found as a rule in the receiving apparatus of the type-lever teletype machines.
  • This construction is characterized by the feature that means already effective at or shortly after the start of the actuating motion of the dropped in (selected) draw bar, and influenced by the drive member of the drawbar, are so arranged and designed that during the longitudinal movement of the drawbarthey simultaneously lift it out of the selector member recesses and act in conjunction with means which prevent the drawbar from dropping back until completion of the printing of the type symbol.
  • the invention has as its underlying problem that of providing an arrangement in selector bar translators which has the advantages of the arrangement described in respect to the general manner of functioning, according to which the setting of the selector bars takes place during the printing process, but in which there is also achieved a simple construction and an especially simple arrangement of the individual functional elements. Moreover, in this arrangement care is to be taken that none or only very few masses have to be moved very rapidly.
  • Such an advantageous arrangement in selector bar translators is characterized according to the invention by the feature that while the drawbar, selected over the selector bars, and with it the allocated function-executing member are accelerated, the other drawbars are lifted off of the selector bars.
  • the construction insures, in a manner of operation not subject to breakdown, that the entire time span required for the accelerating of the selected function-executing member is available for the lifting off of the non-actuated drawbars, so that smaller operating and mass forces become active for the lifting off function and thus the wear on the individual coacting members is considerably reduced.
  • the other drawbars are lifted off of the selector bars during the accelerating action of the drawbar determined by the selection bars by the actuating member over which the one drawbar which was selected by the selector bars is actuated.
  • Such lifting off operation by the actuating member advantageously takes place over angular elements, each arranged on a respective drawbar following the transport element engageable with the actuating member. Special drive means for this purpose thus becomes unnecessary.
  • the arrangement according to the invention is suited for use with type levers arranged in semi-circular form.
  • each of the drawbars there is arranged another angular element by means of which the selected drawbar which has dropped in recesses of the selector bars, following termination of the accelerating action of the function-executing member allocated to such drawbar engages a stop member, whereby the drawbar is swung out of the range of the selector bars. It thereby becomes unnecessary to provide a special drive member for the lifting out operation of the selected drawbar. Further, it is achieved through this arrangement that the drawbar can be accelerated very rapidly, without the impact energy of the type on the recording carrier becoming too great, since at the end of the acceleration through the lift out action of the drawbar from the selector bars, energy is again dissipated.
  • such an angular element is arranged on each of the drawbars in front of the follower member operating with the actuating or drive member, as seen in the direction of the working stroke, so that after termination of the accelerating action of the function-executing member allocated to such drawbar, the angular element ongages the drive member which then serves as a stop and is operative to swing the drawbar out of the. range of the selector bars.
  • a separate member for the achieving of this operation becomes unnecessary.
  • FIGS. 1 and 2 illustrate the arrangement and particular form of a drawbar in the range of an actuating pusher member.
  • FIG. 3 represents a movement diagram of the actuating pusher member and the drawbar according to FIGS. 1 and 2;
  • FIGS. 4 and 5 illustrate a further possibility of construction of the drawbar in the range of the actuating pusher member
  • FIG. 6 represents a movement diagram of the drawbar and the actuating pusher member according to FIGS. 4 and 5.
  • one of the drawbars drops into the selector bars 6 and thereby swings a follower projection or abutment 7 thereon into the range of an actuating pusher member 8.
  • the selected drawbar 1 is in each case represented in dot and dash lines.
  • each drawbar 1 Carried on each drawbar 1, in the forms of construction according to FIGS. 1 and 2 and also according to FIGS. 4 and 5, is an angularly extending portion 9 which, as viewed in the direction of movement of the working stroke, is disposed following the projection 7.
  • the pusher member 8 interacts over such angular portion 9 with the drawbars 1 in such a way that the drawbars not selected by the selector bars 6 are lifted off of Lhe latter during the actuating stroke of the pusher mem-
  • the free ends of each of the drawbars 1 terminate in an angularly extending element or portion 10, opposite which there is arranged a stop member 11.
  • the selected drawbar 1 and with it the allocated type lever 3 retain their direction of movement up to the printing moment 25 and thereupon begin their return movement. Between the time points 24 and 26 all drawbars are lifted 06 of the selector bars, so that during this span of time a new setting of the selector bars 6 can be effected. At time point 27 all drawbars 1 are again presented to the selector bars 6, so that one of the drawbars 1 can again be selected by the selector bars 6-, and swung in front of the pusher member 8 for the next function stroke.
  • FIGS. 4 and 5 generally corresponds to the arrangement of FIGS. 1 and 2, the difference in this arrangement being merely that in the zone, as viewed in direction of movement of the working stroke, in front of the actuating pusher member 8 there is arranged an angular portion 19 on each of the drawbars 1.
  • Such angular portion 19 corresponds to the angular portion 10- of FIGS. 1 and 2, over which the drawbar 1, selected by the selector bars 6, is lifted up following the accelerating action.
  • an actuating mechanism for selector-bar translators the combination of drawbars, each operatively coupled with a corresponding function-executing member, a plurality of selector bars extending parallel to one another and transversely of said drawbars, said selector bars having recesses therein into which a drawbar, selected by relative positioning of said selector bars, may drop by movement transverse to its normal operating movement, an actuating member movable in an actuating direction and a return direction over a predetermined path, each of the respective drawbars having means thereon which, upon selection of such a drawbar, and such dropping movement thereof, is disposed in the path of said actuating member for engagement therewith in an actuating direction for the actuation of such drawbar and function-executing member associated therewith, and means operable during the portion of the working stroke in the actuating direction of said actuating member for lifting all non-selected drawbars off of the selector bars.
  • said means for lifting all non-selected drawbars comprises means on the respective drawbars cooperable with and actuated by said actuating member during its working stroke and operative, while the selected drawbar is accelerated, to lift all non-selected drawbars off of the selector bars.
  • each drawbar is provided with an angularly exdrawbar out of the range of the selector bars following termination of the accelerating action of such drawbar.
  • each drawbar is provided with an angularly extending portion which is disposed thereon, as seen in the direction of the working stroke, ahead of the means engageable with said actuating member for actuating a selected drawbar, said angularly extending portion being disposed to engage said actuating member, whereby following completion of the accelerating action of the function-executing member allocated to the drawbar involved, such drawbar will be thereby swung out of the range of the selected bars.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Rotary Presses (AREA)
  • Transmission Devices (AREA)
  • Reciprocating Conveyors (AREA)
US533696A 1965-03-15 1966-03-11 Drawbar arrangement for selector bar translators Expired - Lifetime US3373858A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES95956A DE1233431B (de) 1965-03-15 1965-03-15 Anordnung in Waehlschienenuebersetzern fuer Fernschreibmaschinen

Publications (1)

Publication Number Publication Date
US3373858A true US3373858A (en) 1968-03-19

Family

ID=7519727

Family Applications (1)

Application Number Title Priority Date Filing Date
US533696A Expired - Lifetime US3373858A (en) 1965-03-15 1966-03-11 Drawbar arrangement for selector bar translators

Country Status (4)

Country Link
US (1) US3373858A (da)
DE (1) DE1233431B (da)
DK (1) DK116455B (da)
GB (1) GB1073900A (da)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3718243A (en) * 1970-11-13 1973-02-27 Olympia Werke Ag Apparatus for storing typing commands given in too rapid succession by keys
US3902419A (en) * 1972-08-19 1975-09-02 Agfa Gevaert Ag Apparatus for applying symbols to webs of photographic material or the like

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1818200A (en) * 1929-04-08 1931-08-11 Electromatic Typewriters Inc Typewriting machine
US2323438A (en) * 1941-08-04 1943-07-06 Teletype Corp Telegraph switching apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1818200A (en) * 1929-04-08 1931-08-11 Electromatic Typewriters Inc Typewriting machine
US2323438A (en) * 1941-08-04 1943-07-06 Teletype Corp Telegraph switching apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3718243A (en) * 1970-11-13 1973-02-27 Olympia Werke Ag Apparatus for storing typing commands given in too rapid succession by keys
US3902419A (en) * 1972-08-19 1975-09-02 Agfa Gevaert Ag Apparatus for applying symbols to webs of photographic material or the like

Also Published As

Publication number Publication date
DE1233431B (de) 1967-02-02
GB1073900A (en) 1967-06-28
DK116455B (da) 1970-01-12

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