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ES397185A1 - Electrostatic device with controllable acceleration - Google Patents

Electrostatic device with controllable acceleration

Info

Publication number
ES397185A1
ES397185A1 ES397185A ES397185A ES397185A1 ES 397185 A1 ES397185 A1 ES 397185A1 ES 397185 A ES397185 A ES 397185A ES 397185 A ES397185 A ES 397185A ES 397185 A1 ES397185 A1 ES 397185A1
Authority
ES
Spain
Prior art keywords
drums
drum
several
band
peripheries
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
ES397185A
Other languages
Spanish (es)
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.)
NCR Voyix Corp
National Cash Register Co
Original Assignee
NCR Corp
National Cash Register Co
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 NCR Corp, National Cash Register Co filed Critical NCR Corp
Publication of ES397185A1 publication Critical patent/ES397185A1/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
    • B41J9/00—Hammer-impression mechanisms
    • B41J9/26—Means for operating hammers to effect impression
    • B41J9/40—Means for operating hammers to effect impression including an electro-adhesive clutch
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N13/00—Clutches or holding devices using electrostatic attraction, e.g. using Johnson-Rahbek effect

Landscapes

  • Braking Arrangements (AREA)
  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
  • Paper Feeding For Electrophotography (AREA)

Abstract

An electrostatic device utilizing the "Johnson-Rahbek" effect. At least first and second drums are rotated at constant but substantially different speeds. An electrically conductive band contacts a portion of the peripheries of the drums the peripheries of the drums are coated with semi-conductor material. One end of the band is connected to a tensioning device, and the other end is connected to a utilization device (like a print hammer). By energizing the first drum and then energizing the second drum while simultaneously deenergizing the first drum, a controlled acceleration of the band is obtained. Several drums and several bands (to operate several utilization devices) may be used. Selective energization of the bands to be driven is obtainable.
ES397185A 1970-11-23 1971-11-19 Electrostatic device with controllable acceleration Expired ES397185A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US9195670A 1970-11-23 1970-11-23

Publications (1)

Publication Number Publication Date
ES397185A1 true ES397185A1 (en) 1975-03-16

Family

ID=22230479

Family Applications (1)

Application Number Title Priority Date Filing Date
ES397185A Expired ES397185A1 (en) 1970-11-23 1971-11-19 Electrostatic device with controllable acceleration

Country Status (12)

Country Link
US (1) US3655019A (en)
JP (1) JPS5124655B1 (en)
AU (1) AU452585B2 (en)
BE (1) BE775699A (en)
CA (1) CA925917A (en)
CH (1) CH539975A (en)
DE (1) DE2157700A1 (en)
ES (1) ES397185A1 (en)
FR (1) FR2115313B1 (en)
GB (1) GB1313820A (en)
IT (1) IT941764B (en)
ZA (1) ZA717347B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1148101A (en) * 1979-11-05 1983-06-14 Jerome J. Cuomo Electrostatic clutch
US4393967A (en) * 1979-11-05 1983-07-19 International Business Machines Corporation Electrostatic clutch
US4393769A (en) * 1980-12-31 1983-07-19 International Business Machines Corporation Electrostatic clutch-operated printing mechanism
JPS6216662U (en) * 1985-07-16 1987-01-31

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB839324A (en) * 1956-08-03 1960-06-29 Int Computers & Tabulators Ltd Improvements in or relating to motion transmitters
US2850908A (en) * 1957-03-06 1958-09-09 Powers Samas Account Mach Ltd Motion transmitters
US2916920A (en) * 1957-03-11 1959-12-15 Powers Samas Account Mach Ltd Motion transmitters

Also Published As

Publication number Publication date
FR2115313A1 (en) 1972-07-07
DE2157700A1 (en) 1972-05-31
AU3543871A (en) 1973-05-17
US3655019A (en) 1972-04-11
BE775699A (en) 1972-03-16
JPS5124655B1 (en) 1976-07-26
IT941764B (en) 1973-03-10
CA925917A (en) 1973-05-08
GB1313820A (en) 1973-04-18
FR2115313B1 (en) 1973-06-29
CH539975A (en) 1973-07-31
AU452585B2 (en) 1974-09-05
ZA717347B (en) 1972-07-26

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