US2110286A - Teletypewriter equipment - Google Patents

Teletypewriter equipment Download PDF

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Publication number
US2110286A
US2110286A US94909A US9490936A US2110286A US 2110286 A US2110286 A US 2110286A US 94909 A US94909 A US 94909A US 9490936 A US9490936 A US 9490936A US 2110286 A US2110286 A US 2110286A
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US
United States
Prior art keywords
unit
switchboard
typing
teletypewriter
shelf
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
US94909A
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English (en)
Inventor
Alfred A Burgess
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.)
AT&T Corp
Original Assignee
Bell Telephone Laboratories Inc
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 Bell Telephone Laboratories Inc filed Critical Bell Telephone Laboratories Inc
Priority to US94909A priority Critical patent/US2110286A/en
Priority to FR825386D priority patent/FR825386A/fr
Application granted granted Critical
Publication of US2110286A publication Critical patent/US2110286A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/04—Switchboards

Definitions

  • the tape Sincel the tape is associatedwith theunit comprising the typing mechanism, it is also located benaththe top of the operatorstable and is," in itsnew? location, obscured; from direct fview. Therefore, a mirror-'mounted alongside thetyping' mechanism is employd'to' reflect the characters typed on the'tap'e to a second'mirror, mounted at table topLv level,- in which thel characters are viewed by'the?operator.j A length "of tape about four inches'lcri'g'which is more'than suflicient to meet viewedin thisv manner.
  • a modication of the invention is arranged with the teletypewriter motor located on a shelf" below the shelf on which the typing unit is lo-l cated. This increases the amountof knee room available to an operator. 'Italso permits thef table to be made narrower 'toenable the operator to sit closer to the jack-field.
  • Fig. y1 is a threedimensional view of a portion of a teletypewriter-central omceihaving a small teletypewriter exchange switchboard with Vtwo operators tables ⁇ and teletypewriters arranged ⁇ in front of Ait andconstructed in accordance with the invention;-
  • Fig. 2 is a cross-sectional side viewof one ⁇ ofA the operators.
  • Y Y Fig . ⁇ 6 is somewhat similar toa portion of Fig. 5
  • the upper front portion of the teletypewriterv exchange switchboard l has a' jackfield 24 comprising rows of jacks 25, Just above the ljack-ield 24 are busy Vtest lamps 2 0 and ticketboxes'2l forl storing message Vrate tickets A 22.
  • the jackileld 2 4 Immediately below ⁇ the jackileld 2 4 are thev .position :splitting keys .llix e v r Slightly lower downon the' switchboard
  • patent is the ⁇ teletypewriters are mounted in the f 4
  • the frontof cover 4I hasa hole 88 ,metes beiowftte tot vtif., table 3.
  • -Anfalternative means of stabilizing table 3 over an uneven oor surface is to use basescomposed of resilient or compressible. 'zx ⁇ iia;t e ri al, ⁇ .V such as a ⁇ rubber composition. which isdesigned to be compressiblein accor-d ance withthe unevenness of thesurface ofi the ping or jigglingnotfV ,theV table 3. ofl theswitchboard. room is sufficiently level. thenthe legs of these tables 3 maybe provided -f with cup-shaped feet of hard brass to facilitate sliding the tables 3upand do wn the length ofthe switchboard in accordance withdi ierent traffic requirements.
  • Each operator's teletypewriter includes a keybeard trapsmitter unitfz which is similar to that is ishownQ-,ttrbe operatedfbyamotor 6 9y which is also.
  • This position equipment includes an electric calcuiagraph41 used by the operators to time messages as a basis for determiningv the amount to be charged for a particular call.
  • .Calculagraph 41 is provided with levers 31, one of which. is used to indicate on a message rate ticket 22 y.the time when the message began, andthe'other to indicate on ticket 22 the timethe message ended.
  • the position equipment alsoy includes the operators position keys 46 for performing the supervisory functions of ringing on the answering cord, cord circuit splitting, recall, and recall-release. These keys46 are connected by leads (not shown) to a connecting block. 82 located on the underside of the table top near the jack panel 61.
  • Line cable 8 has a plug 9 which is adapted to fit linto any of the outlets 1, at the base of switchboard I, leading to the position relay equipment (not shown) inside switchboard I.
  • Power cable I2 has aplug I3 which is adapted to be inserted into any of the power outlets II, at the base of switchboard I, leading to the local source of power supply (not shown).
  • a smalljack panel 61 mounted in' the top of table 3.
  • This jack panel 61 is connected by leads (not shown) tothe keys 46 and is providedfor receiving the plugs 38, 39, 48, and49.
  • Attached to the plugs 48v and 49. are the teletypewriter line cord 88 and power cord ⁇ 8l which passbehind the mirror 68 and theninto the keyboard unit 2.
  • form a link in the electrical connection between the keyboard unit 2 and the connecting block 82 to permit ready removal of the keyboard unit 2 if desired.
  • a cord 83 is attached to plug 38 for connecting the power supply to motor 56 of typing unit 5I.
  • Another cord 84 is connected to plug 39 for forming the electrical connection between the keyboard unit 2 and the typing unit 5I through the connecting block 82.
  • Table 3 is also equipped with a telephone I6 which is mounted on the right end of cover 4I of thekeyboard unit 2.
  • Thistelephone I6 is connected to the switchboard I byl a cord I1 which passes through a hole 42 in theright end panel of table 3 and then to the connecting block 82.
  • The. telephone circuit then passes from connecting block 82 over a conductor in cable and through jack 1 to the relay equipment'inside switchboard I. y e
  • the line circuit passes from the position relay equipment inside switchboard I, through outlet 1 and plug 8, over cable 8, through the connecting block 82, jack panel 61, line plug 48, line cord 88 which goes behind mirror 68 and then through a hole in cover 4I to the keyboard unit 2, back over another conductor in cord 88 and plug 48, through connecting block 82 and jack panel 61 to plug 39, over cord 84, through a hole in thetop of table 3 to the typing unit 5I, and then back over another conductor in cord 84 to cable 8.
  • the power circuit leadsfrom the local 4source of power supply over a conduit (not shown) inside switchboardV I, through outlet II and plug I3, over ⁇ cable I2, and then to the connecting block 82.
  • the power circuit divides, one path 4passing through the jack panel 61, power plug 49, overpower cord 8
  • the tape reel 53 is conveniently mounted on the right end of Athe typing unit 5I.
  • the front -side' panel 54 of table 3 is mounted4 upon hinges 55 to act asI a hinged door so that it may be pulled outward.
  • One end of a chain 63 is attached to the underside of the table top and the other end isl attached to the inside topportion of panel 54. Chain 63 is provided forthe purpose of preventing panel 54 from dropping down when opened and, instead, to ⁇ hold it out'in the manner cfa shelf for the convenience of a maintenance man.
  • the tape 48 passes from the supply reel 53, through the typing unit 5I, through a slot 51 in shelf 52, and then to the used tape storage receptacle, or container, I4 with which each table 3 is provided.
  • Panel 54 has a cut-out portion, indicated at64, for enabling an operator to quickly insert her hand therein to free the tape 48 if it becomessnarled or ⁇ tangled priorkto its passage through slot 51. ,Y
  • the tape illuminating lamp 58 has a shade which is designed to concentrate the light upon the printed portion of the tape 48. This light then shines upward to the mirror 59 which is so adjusted as to reflect it to the mirror 68 which, in turn, is adjusted to reflect the image of the printed tape 48 to the eyes ofthe operator indicated at 62.
  • the line of. vision from the operators eyes 62 to the printed tape L48 is indicated in Fig. 2 by the broken line.
  • the in terior of table 3 may be-painted white to reduce absorption of the: light rays.
  • FIG..A 5 A modification of the inventio-n is shown in Fig..A 5 in which a single motor 18 is yused to -,operate,
  • FIG. 7 Still another modification of this invention is shown in Figs. 7 and 8.
  • 00 is shown provided with teletypewriters 0
  • are the same type as the teletypewriters shown in the other figures of the drawings.
  • two separate motors have been shown in this embodiment of the invention, itis' to be understood that this is a matter of choice and that a single motor located with' either unit and suitably connected to the other unit may be used if desired.
  • the invention is not restricted to teletypewriters mounted upon movable'tables but is equally applicable to teletype- ,rwriters built into a switchboard In both types,
  • the ad-V the invention effects a decrease in the eective height of an operators teletypewriter which results in an increase inthe area of the jack-field available to the operator. 'I'his enables the operators tov make more efllcient use of the switchboard multiple. Since the switchboard multiple is an expensive item, ythe 'initial and overhead costs of a switchboard multiple having the bottom of its jack-field .lowered by means of these teletypewriter andtable assemblies are considerably less than they would be for an ordinary switchboard multiple having an equal number of jacks; It is to be understood that additional modica.- tions within the scope ⁇ of the principles herein outlined are ⁇ within the scope of the invention as herein set forth and claimed.
  • a teletypewriter central o iiice comprising in combination a teletypewriter exchange switch'- board including a switchboard multiple having a jack-field, an operators teletypewriter mounted beneath the jack-field of ⁇ 'the switchboard mul- Y tiple, said teletypewriter having a. keyboard unit anda typing unit, means for' reducing the etfective height of the operators teletypewriter for increasing theeffective height of the jack-field, said means including first supporting means for supporting the keyboard unit below the jack-field and second supporting means for supporting the typing ⁇ unit beneath thefkeyboard unit.
  • a teletypewriter central cnice comprising in combination a teletypewriter exchange switchboard having a jack-'field and a projecting keyshelf, an operators teletypewritermountedvupon a table locatedunderneath thekey-shelf, said tablev being adapted for movement up and down( the length of the switchboard ⁇ for readily varying the location of the operators position in accordance with different trame" requirements, and means for increasing the area of the jack-field available to the reach of an operator, said means comprising a teletypewriter keyboard mounted on top of the table anda teletypewriter typing unit located underneath thetop ⁇ or the table .whereby the effective height'of the 'operators teletypewriter is lowered.
  • a teletypewriter central omce having in combination a teletypewriter exchange switchboard and-an operators Vteletypewriter having a keyboard unit and a typing unit, said switchboard including a switchboard multiple having a Jackfield, the method of increasing the area of vthe jack-field accessible toan operator, said method comprising separating the keyboard mechanism of the operators teletypewriter from the typing mechanism, mounting the keyboard unit beneath the jack-field, and positioning the typing unit beneath the keyboard unit.
  • an operators teletypewriter and table including a keyboard unit and position equipment mounted upon the top ofy the table, said table having a shelf, a typing unit mounted upon the shelf, a motor mounted upon the' shelf for operating the typing unit, and an electrical connectionbetween thekeyboard unit and the typing unit f or enabling theoperation of the typing unit to 4be controlled by the keyboard unit.
  • an operatorsteletypewriter and table including a keyboard unit and position equipment mounted upon the top of the table; said table having a shelLva typing unit mounted upon the shelf, a first motor mounted upon the shelf for operating the typing unit, a second motor mounted upon the top of the table for operating thevkeyboardunit, and an electrical connection between the keyboard unit and the typing unit for enabling the operation of the typing unit to be controlled by the operation of the keyboard unit.
  • an operators teletypewriter and table including a keyboard unit and position equipment mounted upon the top of the table, said table having a shelf, a typing unit mounted upon the shelf, a motor, a plurality of gears for mechanically connecting the motor to both the keyboard unit and the typing unit for enabling the motor to operate both the keyboard unit and the typing unit, and an electrical connection between the keyboard unit and the typing unit for enabling the operation of the typing unit to be controlled by the operation of the keyboard unit.
  • an operators teletypewriter and table including a keyboard unit and position equipment mounted upon the top of the table, said table having an upper shelf and a lower shelf, a typing unit mounted upon one of the shelves, a motor located upon the other shelf,
  • an operators teletypewriter and table including a keyboard unit and position equipment mounted upon the top of the table, a typing unit mounted beneath the top of the table, a motor for operating the typing unit, a supply of paper located beneath the top of the table for being printed upon by the typing unit, a source of light located beneath the top of the table for illuminating the printed portion of the paper, and a plurality of mirrors for enabling the printed portion of the paper to be viewed by an operator.
  • a teletypewriter exchange switchboard having a key-shelf, an operators teletypewriter built into the switchboard and having a keyboard unit and a typing unit, the keys of the keyboard unit being on a level with the key-shelf and the typing unit being located inside the switchboard on a level below that of the key-shelf and keyboard unit, a motor located inside the switchboard for operating the typing unit, andan electrical connection between the keyboard unit and the typing unit'for controlling the operation of the typing unit from the keyboard unit.
  • a teletypewriter exchange switchboard having a key-shelf, an operators teletypewriter mounted in the switchboard and having a keyboard unit and a typing unit, the keys of the keyboard unit being on a level with the key-shelf and the typing unit being located inside the switchboard on a level below that of the'key-sheli and keyboard unit, a iirst motor located inside the switchboard on a level with the key-shelf for operating the keyboard unit, a second motor located inside the switchboard beneath the level of theVkey-shelf for operating the typing unit and an electrical connection between the keyboard unit and the typing unit for controlling the operation of the typing unit by the operation of the keyboard unit.
  • a teletypewriter exchange switchboard having a key-shelf, an operators teletypewriter mounted in the switchboard and having a keyboard unit and a typing unit, the keys of the keyboard unit being on a level with the key-shelf and the typing unit being located inside the switchboard on a level below that of the key-shelf and keyboard unit, a motor located inside the switchboard for operating the typing unit, an electrical connection between the keyboard unit and the typing unit for controlling the operation of the typing unit from the keyboard unit, a supply of paper located inside the switchboard for being printed upon by the typing unit, a source of light located inside the switchboard for illuminating the printed portion of the paper, and a plurality of mirrors for enabling the printed portion of the paper to be viewed by an operator.
  • a teletypewriter central oflice comprising in combination a teletypewriter exchange switchboard including a switchboard multiple having a jack-held, an operators teletypewriter mounted beneath the jack-field of the switchboard multiple, said teletypewriter having a keyboard unit and a typing unit, means for reducing the effective height of the operators teletypewriter for increasing the eiective height of the jack-held, said means including rst supporting means for supporting the keyboard unit below the jack-held, second supporting means for supporting the typing unit beneath the keyboard unit, an electrical connection between the keyboard unit and the typing unit for enabling the operation of the typing unit to be controlled by the operation of the keyboard unit, a supply of paper leading through the typing unit for being printed upon by the typing unit, a source of light located beneath the keyboard unit for illuminating the printed portion of the paper, and a plurality of mirrors located in viewing relation with the printed portion of the paper for enabling the printed portion of the paper to be viewed by an operator.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Patch Boards (AREA)
US94909A 1936-08-08 1936-08-08 Teletypewriter equipment Expired - Lifetime US2110286A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US94909A US2110286A (en) 1936-08-08 1936-08-08 Teletypewriter equipment
FR825386D FR825386A (fr) 1936-08-08 1937-08-06 Installations de téléimprimeurs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US94909A US2110286A (en) 1936-08-08 1936-08-08 Teletypewriter equipment

Publications (1)

Publication Number Publication Date
US2110286A true US2110286A (en) 1938-03-08

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Application Number Title Priority Date Filing Date
US94909A Expired - Lifetime US2110286A (en) 1936-08-08 1936-08-08 Teletypewriter equipment

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US (1) US2110286A (fr)
FR (1) FR825386A (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2506656A (en) * 1945-10-15 1950-05-09 George S Hills Air conditioner
US3851746A (en) * 1973-07-30 1974-12-03 B Ivanov Platen for multiplex typewriter or similar devices
US3869033A (en) * 1972-01-13 1975-03-04 Borislav S Ivanov Multiplex typewriter for technical drawings
US5302041A (en) * 1986-07-15 1994-04-12 Monarch Marking Systems, Inc. Printer
US5609429A (en) * 1986-07-15 1997-03-11 Monarch Marking Systems, Inc. Method of using and operating a printer

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2506656A (en) * 1945-10-15 1950-05-09 George S Hills Air conditioner
US3869033A (en) * 1972-01-13 1975-03-04 Borislav S Ivanov Multiplex typewriter for technical drawings
US3851746A (en) * 1973-07-30 1974-12-03 B Ivanov Platen for multiplex typewriter or similar devices
US5302041A (en) * 1986-07-15 1994-04-12 Monarch Marking Systems, Inc. Printer
US5609429A (en) * 1986-07-15 1997-03-11 Monarch Marking Systems, Inc. Method of using and operating a printer

Also Published As

Publication number Publication date
FR825386A (fr) 1938-03-02

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