GB910908A - Portable electric drill with built-in speed regulating control system - Google Patents

Portable electric drill with built-in speed regulating control system

Info

Publication number
GB910908A
GB910908A GB3505760A GB3505760A GB910908A GB 910908 A GB910908 A GB 910908A GB 3505760 A GB3505760 A GB 3505760A GB 3505760 A GB3505760 A GB 3505760A GB 910908 A GB910908 A GB 910908A
Authority
GB
United Kingdom
Prior art keywords
portable electric
electric drill
built
control system
speed regulating
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
GB3505760A
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.)
Fairweather Harold G C
Original Assignee
Fairweather Harold G C
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 Fairweather Harold G C filed Critical Fairweather Harold G C
Priority to GB3505760A priority Critical patent/GB910908A/en
Priority to FR842048A priority patent/FR1275550A/en
Publication of GB910908A publication Critical patent/GB910908A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
    • H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
    • H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
    • H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
    • H02P7/285—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only
    • H02P7/292—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using static converters, e.g. AC to DC
    • H02P7/295—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using static converters, e.g. AC to DC of the kind having one thyristor or the like in series with the power supply and the motor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B45/00—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor
    • B23B45/02—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor driven by electric power

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)

Abstract

910,908. Control of D.C. motors. FAIRWEATHER, H. G. C. (Singer Manufacturing Co.). Oct. 13, 1960, No. 35057/60. Class 38 (3). [Also in Groups XXII and XXXV] The circuit of a series wound commutator motor for a portable electric drill includes a junction transistor 41 whose collector 40 voltage may be varied by a potentiometer 32 to control the speed. All the components are housed within the framework of the drill, and the potentiometer 32 is operated by a knob which may have ball and indent positions marked with drill sizes for which the corresponding speed would be appropriate. The supply lines 20, 27 are A.C.
GB3505760A 1960-10-13 1960-10-13 Portable electric drill with built-in speed regulating control system Expired GB910908A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB3505760A GB910908A (en) 1960-10-13 1960-10-13 Portable electric drill with built-in speed regulating control system
FR842048A FR1275550A (en) 1960-10-13 1960-10-24 Portable electric drill with built-in adjustment and speed regulation device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3505760A GB910908A (en) 1960-10-13 1960-10-13 Portable electric drill with built-in speed regulating control system

Publications (1)

Publication Number Publication Date
GB910908A true GB910908A (en) 1962-11-21

Family

ID=10373279

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3505760A Expired GB910908A (en) 1960-10-13 1960-10-13 Portable electric drill with built-in speed regulating control system

Country Status (1)

Country Link
GB (1) GB910908A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2817814A1 (en) * 1978-04-22 1979-10-31 Licentia Gmbh Electric drill with speed control - has selector for drilled material and for drill dia., controlling thyristor ignition voltage or time instant
FR2460563A1 (en) * 1979-06-28 1981-01-23 Scintilla Ag PORTABLE ELECTRIC MACHINE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2817814A1 (en) * 1978-04-22 1979-10-31 Licentia Gmbh Electric drill with speed control - has selector for drilled material and for drill dia., controlling thyristor ignition voltage or time instant
FR2460563A1 (en) * 1979-06-28 1981-01-23 Scintilla Ag PORTABLE ELECTRIC MACHINE

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