US2583086A - Tape perforating machine - Google Patents

Tape perforating machine Download PDF

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Publication number
US2583086A
US2583086A US588401A US58840145A US2583086A US 2583086 A US2583086 A US 2583086A US 588401 A US588401 A US 588401A US 58840145 A US58840145 A US 58840145A US 2583086 A US2583086 A US 2583086A
Authority
US
United States
Prior art keywords
tape
drum
punch
pin
pins
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
US588401A
Other languages
English (en)
Inventor
Warren W Carpenter
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
Priority to BE464506D priority Critical patent/BE464506A/xx
Priority to NL65877D priority patent/NL65877C/xx
Application filed by Bell Telephone Laboratories Inc filed Critical Bell Telephone Laboratories Inc
Priority to US588401A priority patent/US2583086A/en
Priority to GB10439/46A priority patent/GB610413A/en
Priority to CH260444D priority patent/CH260444A/fr
Application granted granted Critical
Publication of US2583086A publication Critical patent/US2583086A/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
    • 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
    • H04L17/20—Apparatus or circuits at the receiving end using perforating recorders

Definitions

  • This invention relates to perforating, or punching and reading, or sensing machines of the type wherein code symbols are punched or otherwise impressed on a tape, or its equivalent, for subsequent use in a code translating device.
  • the rotatable drum functioned to propel the tape through the media of pins projecting from the drum which cooperate with suitable perforations in the tape so that, by virtue of the cooperation of the drum-mounted pins with the tape perforations, the rotational movement of the drum was imparted to the tape.
  • each of the code signals is symbolizing each of the code signals as a perforated tape embossment, or indenture, and utilizing the embossments or indentures to effect a gear coupling between the tape and a suitably apertured drum or tape supporting medium.
  • the opera ing or punching ends of the punch pins are structurally devised so as to present a substantially cone-shaped end to the tape, and the drum which carries the tape is provided with a multiplicity of apertures having inverted cone-shaped, or funnelshaped mouths arranged in transverse rows so as to be in alignment with the punch pins.
  • embossment which assumes a configuration determined by the cone-shaped contours of the punch pin and its corresponding drum aperture.
  • the tape is subjected to a stretching process which permits the cutting end of the punch pin to pierce the tape and to thereby effect a chadless perforation.
  • the tape embossment or protrusion remains embedded in the drum aperture to effect a coupling, or driving connection between the tape and the drum.
  • the tape is carried along therewith, the movement of the drum being imparted to the tape through'the cooperation of the drumaperture and its embedded tape protrusion, or embossment.
  • the tape protrusion, or embossment meshes with a corresponding aperture in the senser drum to effect a gear coupling between the sensor drum and the tape.
  • Fig. 1 is a schematic perspective view of a code perforating or impressing machine embodying features of the invention and illustrating, particularly, the relative positions of the essential elements of the machine, and tape to be perforated thereby;
  • Fig. 2 is an enlarged end viewof the "feed roller, or rotatable drum, with a portion of the end plate thereof broken away to expose a fragmentary sectional view of the drum periphery; the tape protrusions, or embossments, in driving association with the drum apertures; a pair of punch pins, and a part of the ratchet mechanism which functions to drive the feed roll;
  • Fig. 3 is an enlarged fragmentary view of the feed roll, or drum and illustrates the meshing of the tape embossments with the drum apertures;
  • Fig. 4 is an enlarged view of the acting end 'of the punch pin employed in the structure shown in Fig. 1 and shows the pin in its operated position;
  • Fig. is an enlarged view of an alternative form of punch and die which serve to produce the same form of perforated embossment produced by the punch and die shown in Figs. 1, 2 and 4.
  • the spaced vertical brackets [0 support a bridge plate l2 which is provided with a plurality of cylindrical holes arranged in two transverse rows, the holes in one row being staggered with respect to the holes in the other row.
  • Each of the holes in plate [2 accommodates a punch pin l3, each of which is held in the retracted position illustrated, by means of a coil spring 14 so that its upper end is held in constant communica- I tion with the arm l5 of a corresponding electromagnet IS.
  • the upper end of each punch pin I3 is provided with an integral extension 3' of smaller diameter than that of the main body portion of the pin.
  • This extension projects through a suitable opening in the outer end of the magnet arm l5, and the shoulder effected at the junction of the pin extension [3' with the main body portion of the pin abuts the under surface of the arm l5 due to the action of the coil spring M.
  • the arm I5 is, in fact, a channel-shaped member fixed to the electromagnet armature (1 by means of screws l8.
  • a shaft I8 is supported between the brackets l0 by means of bearing bolts 19 or in any other suitable manner.
  • This shaft fixedly supports a drum, or feed roll 20, between two circular end plates 2
  • a paper tape 26 is guided in-itstravel to the drum, or roller 20, by means of a shelf-like member whose longitudinal edges are bent-over to provide guide integral pieces 21.
  • the spaces between the floor of the shelf-like member and the under surface of the guide pieces 21 constitute longitudinal guide slots in which the tape moves freely in its travel to the drum.
  • the ends of the guide pieces 21 are slightly curved upwards to facilitate the entrance and exit of the tape to and from the guide slots.
  • the feed roll, or drum 20 is provided with a multiplicity of transverse rows of small truncated conical apertures 28 whose outer dimension exceeds the root, or inner dimension thereof so as to give to each aperture a substantially funnel-shaped mouth.
  • two adjacent rows of apertures 28 will be in transverse alignment with the cutting ends of the two rows of punch pins I3 and when, with the tape 26 interposed between the pin ends and the roller 20, any of such punch pins is operated by its associated a! In Fig.
  • a plurality of electromagnets i 6 are operated simultaneously in accordance with a particular code, so that a corresponding number of punch pins I3 will function simultaneously to provide a plurality of tape protrusions or embossments which extend across the breadth of the tape to define a pattern corresponding to the combination of punch pins operated.
  • a plurality of tape embossments are embedded in a corresponding number of drum apertures throughout the breadth of the drum, and an effective union between the tape and drum is thus effected.
  • the stepping magnet 23 When, subsequently to the deenergization of the code punch magnets I6 and the consequent withdrawal of the operated punch pins l3, the stepping magnet 23 functions through the ratchet drive 25, 22 to advance the drum 20, the tape 26 will be connected to the drum by virtue of the embedded embossments in corresponding drum apertures, and will rotate with the drum.
  • the tape 26 By virtue of the driving connection between the tape 26 and drum 20 effected by the tape embossments, the tape 26 will cling to the drum during the rotation of the latter and until it reaches a point 33 at which it will separate from and leave the drum.
  • a guide piece 34 serves to insure the association of the tape with the drum until the point 33 is reached.
  • the tape protrusions or embossments when embedded in the drum apertures, function to provide an effective driving connection in the nature of a gear coupling between the tape and drum so that the rotation of the drum is imparted to the tape without the use of extraneous means such as drum-mounted driving pins. It is also apparent that applicant's invention precludes the necessity for providing the tape with perforations which accommodate such drum-carried driving pins so that a completely blank tape may be employed, which after the perforating operation has been performed thereon, bears only those perforations which identify the code signals.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
US588401A 1945-04-14 1945-04-14 Tape perforating machine Expired - Lifetime US2583086A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BE464506D BE464506A (US20070167544A1-20070719-C00007.png) 1945-04-14
NL65877D NL65877C (US20070167544A1-20070719-C00007.png) 1945-04-14
US588401A US2583086A (en) 1945-04-14 1945-04-14 Tape perforating machine
GB10439/46A GB610413A (en) 1945-04-14 1946-04-04 Improvements in perforating punching and reading machines
CH260444D CH260444A (fr) 1945-04-14 1946-08-24 Machine à code.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US588401A US2583086A (en) 1945-04-14 1945-04-14 Tape perforating machine

Publications (1)

Publication Number Publication Date
US2583086A true US2583086A (en) 1952-01-22

Family

ID=24353695

Family Applications (1)

Application Number Title Priority Date Filing Date
US588401A Expired - Lifetime US2583086A (en) 1945-04-14 1945-04-14 Tape perforating machine

Country Status (5)

Country Link
US (1) US2583086A (US20070167544A1-20070719-C00007.png)
BE (1) BE464506A (US20070167544A1-20070719-C00007.png)
CH (1) CH260444A (US20070167544A1-20070719-C00007.png)
GB (1) GB610413A (US20070167544A1-20070719-C00007.png)
NL (1) NL65877C (US20070167544A1-20070719-C00007.png)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2732899A (en) * 1956-01-31 wales
US2744578A (en) * 1951-11-02 1956-05-08 Bell Telephone Labor Inc Code tape perforators
US2857969A (en) * 1955-10-19 1958-10-28 Adalia Ltd Reading and punching device
US4364504A (en) * 1980-10-03 1982-12-21 The Garber Company Feeding device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1711497A (en) * 1926-05-22 1929-05-07 And william f
US1975791A (en) * 1928-03-09 1934-10-09 Hopkins Edwin Typewriter actuator
US2046082A (en) * 1935-02-27 1936-06-30 Ibm Manual and record controlled machine
US2206138A (en) * 1939-03-15 1940-07-02 Eastman Kodak Co Method and apparatus for perforating motion picture films
US2283538A (en) * 1937-08-21 1942-05-19 Edgar H Clark Translating and recording device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1711497A (en) * 1926-05-22 1929-05-07 And william f
US1975791A (en) * 1928-03-09 1934-10-09 Hopkins Edwin Typewriter actuator
US2046082A (en) * 1935-02-27 1936-06-30 Ibm Manual and record controlled machine
US2283538A (en) * 1937-08-21 1942-05-19 Edgar H Clark Translating and recording device
US2206138A (en) * 1939-03-15 1940-07-02 Eastman Kodak Co Method and apparatus for perforating motion picture films

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2732899A (en) * 1956-01-31 wales
US2744578A (en) * 1951-11-02 1956-05-08 Bell Telephone Labor Inc Code tape perforators
US2857969A (en) * 1955-10-19 1958-10-28 Adalia Ltd Reading and punching device
US4364504A (en) * 1980-10-03 1982-12-21 The Garber Company Feeding device

Also Published As

Publication number Publication date
CH260444A (fr) 1949-03-15
GB610413A (en) 1948-10-15
NL65877C (US20070167544A1-20070719-C00007.png)
BE464506A (US20070167544A1-20070719-C00007.png)

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