GB750828A - Improvements in or relating to the control of electrically driven sewing machines - Google Patents

Improvements in or relating to the control of electrically driven sewing machines

Info

Publication number
GB750828A
GB750828A GB1960/54A GB196054A GB750828A GB 750828 A GB750828 A GB 750828A GB 1960/54 A GB1960/54 A GB 1960/54A GB 196054 A GB196054 A GB 196054A GB 750828 A GB750828 A GB 750828A
Authority
GB
United Kingdom
Prior art keywords
motor
transformer
sewing
switch
primary
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
GB1960/54A
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.)
VITTORIO NECCHI PER AZ Soc
Original Assignee
VITTORIO NECCHI PER AZ Soc
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 VITTORIO NECCHI PER AZ Soc filed Critical VITTORIO NECCHI PER AZ Soc
Publication of GB750828A publication Critical patent/GB750828A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B69/00—Driving-gear; Control devices
    • D05B69/14—Devices for changing speed or for reversing direction of rotation
    • D05B69/18—Devices for changing speed or for reversing direction of rotation electric, e.g. foot pedals
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
    • H02P25/10—Commutator motors, e.g. repulsion motors
    • H02P25/14—Universal motors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)

Abstract

750,828. Sewing-machines. VITTORIO NECCHI SOC. PER AZIONI. Jan. 22, 1954 [Feb. 7, 1953], No. 1960/54. Class 112. [Also in Groups XXXV and XXXVII] A control unit for a sewing-machine comprises a transformer having a primary winding 9 connected to a device 3 with a number of terminals adapted for supply voltages of different values. The driving motor 4 is connected to tappings b<1> and e in the primary coil through a change-over switch 5, the tapping b<1> supplying the rated voltage to the motor, and the tapping e a reduced voltage. A rheostat 6, which may be combined with a switch for breaking the motor circuit, is connected in series with the motor. The secondary winding f of the transformer supplies a reduced voltage to a lamp 8 for illuminating the work. If a cut-out switch 7<1> is provided in the primary circuit, the lamp acts as an indicator of the energization of the primary winding. The transformer, cut-out switch, change-over switch, as well as the device 3, may be incorporated in a single unit for mounting on the sewing-machine, the rheostat being contained in a separate housing, Figs. 2-6 (not shown). In a modification, the motor is in the same housing with the transformer and the circuit elements 3, 5, and 7<1>, Figs. 7-10 (not shown).
GB1960/54A 1953-02-07 1954-01-22 Improvements in or relating to the control of electrically driven sewing machines Expired GB750828A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT750828X 1953-02-07

Publications (1)

Publication Number Publication Date
GB750828A true GB750828A (en) 1956-06-20

Family

ID=11315653

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1960/54A Expired GB750828A (en) 1953-02-07 1954-01-22 Improvements in or relating to the control of electrically driven sewing machines

Country Status (1)

Country Link
GB (1) GB750828A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2403679A1 (en) * 1977-09-15 1979-04-13 Bosch Gmbh Robert CIRCUIT ARRANGEMENT FOR THE REGULATION OF THE ROTATION SPEED OF A UNIVERSAL MOTOR
GB2238677A (en) * 1989-10-11 1991-06-05 Patrick John Elderkin Power economiser motor control system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2403679A1 (en) * 1977-09-15 1979-04-13 Bosch Gmbh Robert CIRCUIT ARRANGEMENT FOR THE REGULATION OF THE ROTATION SPEED OF A UNIVERSAL MOTOR
GB2238677A (en) * 1989-10-11 1991-06-05 Patrick John Elderkin Power economiser motor control system
GB2238677B (en) * 1989-10-11 1994-03-23 Patrick John Elderkin Power economiser system for an electric motor

Similar Documents

Publication Publication Date Title
GB1076354A (en) Battery chargers for hand-held battery-operated devices
GB1009854A (en) Dynamoelectric machines
GB750828A (en) Improvements in or relating to the control of electrically driven sewing machines
US3086161A (en) Electric generating systems
CA1097778A (en) Device for controlling the motor of an electric sewing machine
US5264779A (en) Apparatus for controlling AC generator in vehicle
GB1303569A (en)
ES8305168A1 (en) Starting circuit for alternator of an automotive vehicle
GB1178383A (en) Improvements relating to Control Circuit Arrangements.
US3309609A (en) Electrical speedometer with electrical energy regulating means
US3264486A (en) Ignition system
GB1361192A (en) Voltage regulators
SU596413A1 (en) Electromagnetic panel control device
GB804552A (en) Improvements in or relating to voltage changeover plates and electrical systems employing the same
GB1265944A (en)
GB1133352A (en) An electronic regulator for alternators of automobile vehicles
SU845269A1 (en) Duty device
GB713392A (en) Improvements in or relating to regulating and switching systems for direct-current generators for electrical systems on vehicles
GB1363353A (en) Stud welding apparatus
GB2028552A (en) Voltage regulator for a solid state clock
GB1209103A (en) Improvements relating to battery charging
GB487029A (en) Improvements in and relating to control arrangements for electric motors operating machine tools and similar machines
SU1138937A1 (en) Static limit switch
ES2001370A6 (en) Computer-controlled electric sewing machine.
GB183503A (en) Improvements in and relating to electric control systems