GB839324A - Improvements in or relating to motion transmitters - Google Patents

Improvements in or relating to motion transmitters

Info

Publication number
GB839324A
GB839324A GB24051/56A GB2405156A GB839324A GB 839324 A GB839324 A GB 839324A GB 24051/56 A GB24051/56 A GB 24051/56A GB 2405156 A GB2405156 A GB 2405156A GB 839324 A GB839324 A GB 839324A
Authority
GB
United Kingdom
Prior art keywords
stylus
energization
cylinder
band
voltage
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
GB24051/56A
Inventor
Alan Foster
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.)
International Computers and Tabulators Ltd
Original Assignee
International Computers and Tabulators 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 International Computers and Tabulators Ltd filed Critical International Computers and Tabulators Ltd
Priority to GB24051/56A priority Critical patent/GB839324A/en
Priority to US664930A priority patent/US2850907A/en
Priority to DEP18981A priority patent/DE1079727B/en
Priority to FR1186264D priority patent/FR1186264A/en
Publication of GB839324A publication Critical patent/GB839324A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/22—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of impact or pressure on a printing material or impression-transfer material
    • B41J2/23—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of impact or pressure on a printing material or impression-transfer material using print wires
    • B41J2/27—Actuators for print wires
    • 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
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H59/00—Electrostatic relays; Electro-adhesion relays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H63/00—Details of electrically-operated selector switches
    • H01H63/16—Driving arrangements for multi-position wipers
    • 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
    • H04L13/02—Details not particular to receiver or transmitter
    • H04L13/04—Driving mechanisms; Clutches
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating

Abstract

839,324. Clutches. INTERNATIONAL COMPUTERS & TABULATORS Ltd. July 1, 1957 [Aug. 3, 1956], No. 24051/56. Class 80 (2). [Also in Group XXXV] An electrostatic friction clutch adapted to effect intermittent movement of a stylus 4, Fig. 1, from a continuously-rotating shaft 11 for marking on impression-receiving material 1 comprises a cylinder 14 of a dielectric material having a constant of at least 1000, such as barium titanate, secured on the shaft 11 and a surrounding band 18 of an electrically-conductive material such as phosphor bronze. The ends of the band are anchored to an element 22 which is urged against a stop 24 by a spring 7 on the stylus 4. The surface of the cylinder 14 is polished and preferably lubricated by a pad of polytetrafluorethylene so that in the de-energized state the friction between the cylinder and the band is insufficient to move the stylus 4 against the spring 7. On the application of a D.C. voltage across an inner conductive liner 13 of the cylinder 14 and the band 18 the electrostatic action locks the band 18 to the cylinder to produce a movement of the stylus against the action of spring 7. At the end of a forward movement of the stylus the clutch is deenergized and the electric stress discharged through a resistor 26. A suitable switch may be operated for the energization and de-energization, or a pulse from a generator 8 with positive and negative-going portions may be utilized. Control by A.C. voltage will provide energization and de-energization at each halfcycle where the frequency is low but for highfrequency voltage the band stays locked to the cylinder when the voltage is applied and a switch as for D.C. voltage must be used for energization and de-energization. A positive reciprocating movement of the stylus could be obtained by utilizing an oscillating shaft 11 and maintained whilst the clutch is energized. A clutch for the transmission of continuous rotary movement is shown in Fig. 4. A disc 12 on a driving-shaft 11 engages through a dielectric disc 14 a disc 18 on a driven shaft 27 which is spring-loaded axially. Alternatively a series of separate spring-loaded pads could be arranged on one of the discs 12, 18. Specification 707,736 is referred to.
GB24051/56A 1956-08-03 1956-08-03 Improvements in or relating to motion transmitters Expired GB839324A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB24051/56A GB839324A (en) 1956-08-03 1956-08-03 Improvements in or relating to motion transmitters
US664930A US2850907A (en) 1956-08-03 1957-06-11 Motion transmitters
DEP18981A DE1079727B (en) 1956-08-03 1957-07-23 Motion transmission device
FR1186264D FR1186264A (en) 1956-08-03 1957-07-31 Improvements made to motion transmission components

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB24051/56A GB839324A (en) 1956-08-03 1956-08-03 Improvements in or relating to motion transmitters

Publications (1)

Publication Number Publication Date
GB839324A true GB839324A (en) 1960-06-29

Family

ID=10205590

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24051/56A Expired GB839324A (en) 1956-08-03 1956-08-03 Improvements in or relating to motion transmitters

Country Status (4)

Country Link
US (1) US2850907A (en)
DE (1) DE1079727B (en)
FR (1) FR1186264A (en)
GB (1) GB839324A (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2923390A (en) * 1955-12-30 1960-02-02 Ibm Electrostatic clutch
US2916920A (en) * 1957-03-11 1959-12-15 Powers Samas Account Mach Ltd Motion transmitters
US2946381A (en) * 1957-10-02 1960-07-26 Ibm High speed tape punch
US2995285A (en) * 1958-12-31 1961-08-08 Ibm Electrostatic incremental drive
US2995284A (en) * 1958-12-31 1961-08-08 Ibm Electrostatic incremental drive
US2995286A (en) * 1958-12-31 1961-08-08 Ibm Electrostatic incremental drive unit
US3195363A (en) * 1962-02-09 1965-07-20 Litton Systems Inc Selective driving means
NL136900C (en) * 1963-03-28 Ibm
US3240306A (en) * 1963-07-18 1966-03-15 Warner Electric Brake & Clutch Electrostatically controlled friction coupling
GB1118628A (en) * 1964-12-08 1968-07-03 Gen Electric Co Ltd Improvements in or relating to electrostatic clutches and brakes
GB1118627A (en) * 1964-12-09 1968-07-03 Gen Electric Co Ltd Improvements in or relating to electrostatic clutch arrangements
US3655019A (en) * 1970-11-23 1972-04-11 Ncr Co Electrostatic device with controllable acceleration
US4028032A (en) * 1976-03-09 1977-06-07 Celanese Corporation Apparatus for precision electrostatic pinning
US4393769A (en) * 1980-12-31 1983-07-19 International Business Machines Corporation Electrostatic clutch-operated printing mechanism
EP0616894B1 (en) * 1993-03-22 1999-06-23 Nec Corporation Printing head device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR533368A (en) * 1919-03-06 1922-03-01
DE481446C (en) * 1922-01-19 1929-08-26 Erich F Huth G M B H Dr Device for the transmission of current pulses from one circuit to another using relays according to Johnsen & Rahbeck
US1631764A (en) * 1926-02-15 1927-06-07 Ruben Samuel Electrostatic relay device
US2148482A (en) * 1934-01-10 1939-02-28 Lorenz Charles Frederick Electrical device and method of operating the same
US2417850A (en) * 1942-04-14 1947-03-25 Willis M Winslow Method and means for translating electrical impulses into mechanical force
GB631804A (en) * 1946-02-27 1949-11-10 Knud Rahbek Method for the production of artificial semi-conductors

Also Published As

Publication number Publication date
FR1186264A (en) 1959-08-19
DE1079727B (en) 1960-04-14
US2850907A (en) 1958-09-09

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