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SE335549B - - Google Patents

Info

Publication number
SE335549B
SE335549B SE13923/65A SE1392365A SE335549B SE 335549 B SE335549 B SE 335549B SE 13923/65 A SE13923/65 A SE 13923/65A SE 1392365 A SE1392365 A SE 1392365A SE 335549 B SE335549 B SE 335549B
Authority
SE
Sweden
Prior art keywords
cantilever
secured
generator
electric
creed
Prior art date
Application number
SE13923/65A
Inventor
F Mason
G Stevens
Original Assignee
Creed & Co Ltd
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 Creed & Co Ltd filed Critical Creed & Co Ltd
Publication of SE335549B publication Critical patent/SE335549B/xx

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
    • B41J5/00—Devices or arrangements for controlling character selection
    • B41J5/08—Character or syllable selected by means of keys or keyboards of the typewriter type
    • B41J5/14—Construction of key levers
    • 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
    • B41J7/54—Selecting arrangements including combinations, permutation, summation, or aggregation means
    • B41J7/68—Selecting arrangements including combinations, permutation, summation, or aggregation means with means for selectively closing an electric circuit for type presentation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/96—Touch switches
    • H03K17/964—Piezoelectric touch switches
    • H03K17/9643—Piezoelectric touch switches using a plurality of detectors, e.g. keyboard
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/965—Switches controlled by moving an element forming part of the switch
    • H03K17/967—Switches controlled by moving an element forming part of the switch having a plurality of control members, e.g. keyboard
    • 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
    • H04L13/16—Details of the apparatus or circuits covered by groups H04L15/00 or H04L17/00 of transmitters, e.g. code-bars, code-discs
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Impact Printers (AREA)
  • Character Spaces And Line Spaces In Printers (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Push-Button Switches (AREA)

Abstract

1,028,059. Piezo-electric generators. CREED & CO. Ltd. Nov. 6, 1964, No. 45303/64. Heading H2A. An A.C. generator, e.g. a signal generator for an electric typewriter &c., consists of a piezoelectric element secured to a cantilever 4 which vibrates when depression of a key 12 forces a magnet 9 away from an armature 8 secured to the cantilever.
SE13923/65A 1964-11-06 1965-10-28 SE335549B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB45303/64A GB1028059A (en) 1964-11-06 1964-11-06 A signal generating arrangement for an electric typewriter and similar apparatus

Publications (1)

Publication Number Publication Date
SE335549B true SE335549B (en) 1971-06-01

Family

ID=10436697

Family Applications (1)

Application Number Title Priority Date Filing Date
SE13923/65A SE335549B (en) 1964-11-06 1965-10-28

Country Status (8)

Country Link
US (1) US3353038A (en)
BE (1) BE671971A (en)
CH (1) CH436789A (en)
DE (1) DE1499177A1 (en)
FR (1) FR1454151A (en)
GB (1) GB1028059A (en)
NL (1) NL6514436A (en)
SE (1) SE335549B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3464531A (en) * 1967-05-16 1969-09-02 Us Army Manual electronic keyboard
US3725908A (en) * 1971-06-21 1973-04-03 Control Data Corp Impact transducer keyboard apparatus
GB1363215A (en) * 1973-01-04 1974-08-14 Mullard Ltd Mechanical-electrical transducer
US3831730A (en) * 1973-01-31 1974-08-27 D Koeppe Keyboards
US4378552A (en) * 1977-11-21 1983-03-29 Scm Corporation Acoustic encoding apparatus
US4269521A (en) * 1978-10-11 1981-05-26 Scm Corporation Key mechanism having a snap action
US4359612A (en) * 1980-09-24 1982-11-16 Engineering Research Applications, Inc. Universal keyboard and method of producing same
US4359613A (en) * 1981-03-16 1982-11-16 Engineering Research Applications, Inc. Molded keyboard and method of fabricating same
USRE32419E (en) * 1981-03-16 1987-05-12 Engineering Research Applications, Inc. Molded keyboard and method of fabricating same
EP0165245B1 (en) * 1983-12-20 1989-07-19 Caterpillar Inc. Frictionally driven belted work vehicle
DE102007053820A1 (en) * 2007-11-12 2009-05-14 BSH Bosch und Siemens Hausgeräte GmbH Electrical appliance switch device
EP3550715B1 (en) * 2016-12-02 2021-02-24 Panasonic Intellectual Property Management Co., Ltd. Power generation device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2309703A (en) * 1941-05-21 1943-02-02 Bell Telephone Labor Inc Alternating current generator
US2302081A (en) * 1941-06-19 1942-11-17 Ibm Signaling system
US2464045A (en) * 1947-03-20 1949-03-08 Walter E Kuenstler Frequency control device
US2921252A (en) * 1957-05-28 1960-01-12 Edward L Schiavone Electric generator

Also Published As

Publication number Publication date
GB1028059A (en) 1966-05-04
BE671971A (en) 1966-05-09
CH436789A (en) 1967-05-31
DE1499177A1 (en) 1969-10-23
FR1454151A (en) 1966-07-22
NL6514436A (en) 1966-05-09
US3353038A (en) 1967-11-14

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