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GB1376976A - Positioning mechanism - Google Patents

Positioning mechanism

Info

Publication number
GB1376976A
GB1376976A GB2371072A GB2371072A GB1376976A GB 1376976 A GB1376976 A GB 1376976A GB 2371072 A GB2371072 A GB 2371072A GB 2371072 A GB2371072 A GB 2371072A GB 1376976 A GB1376976 A GB 1376976A
Authority
GB
United Kingdom
Prior art keywords
type cylinder
rotational
control
axial
cylinder
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
Application number
GB2371072A
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 Teletype Corp
Original Assignee
Teletype 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 Teletype Corp filed Critical Teletype Corp
Priority to GB2371072A priority Critical patent/GB1376976A/en
Publication of GB1376976A publication Critical patent/GB1376976A/en
Expired legal-status Critical Current

Links

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
    • B41J7/48—Type carrier arrested in selected position by electromagnetic means

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Control Of Position Or Direction (AREA)

Abstract

1376976 Automatic control of position TELETYPE CORP 19 May 1972 23710/72 Heading G3N [Also in Division B6] The axial and rotational position of a type cylinder 21 is controlled by two electromagnetic positioning mechanisms comprising two permanent magnets 11 and 12 with associated coils 23 and 24. Each permanent magnet has a cut-away outer cylindrical portion 14, 17 and a control stub portion 15, 18. Electric coils 23 and 24 secured to the outer surface of the type cylinder cause respective axial and rotational movement of the cylinder when energized. A linear potentiometer (31) and a rotational potentiometer (41), Fig. 2 (not shown) provide feedback to the respective servo-amplifiers (36 and 43), Fig. 5 (not shown), to control the final position of the type cylinder.
GB2371072A 1972-05-19 1972-05-19 Positioning mechanism Expired GB1376976A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2371072A GB1376976A (en) 1972-05-19 1972-05-19 Positioning mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2371072A GB1376976A (en) 1972-05-19 1972-05-19 Positioning mechanism

Publications (1)

Publication Number Publication Date
GB1376976A true GB1376976A (en) 1974-12-11

Family

ID=10200053

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2371072A Expired GB1376976A (en) 1972-05-19 1972-05-19 Positioning mechanism

Country Status (1)

Country Link
GB (1) GB1376976A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees