GB1434474A - Closs rauch schnizler portable drills driven by electric motors - Google Patents

Closs rauch schnizler portable drills driven by electric motors

Info

Publication number
GB1434474A
GB1434474A GB1886574A GB1886574A GB1434474A GB 1434474 A GB1434474 A GB 1434474A GB 1886574 A GB1886574 A GB 1886574A GB 1886574 A GB1886574 A GB 1886574A GB 1434474 A GB1434474 A GB 1434474A
Authority
GB
United Kingdom
Prior art keywords
motor
thyristor
switch
schnizler
rauch
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
GB1886574A
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.)
Metabowerke GmbH and Co
Original Assignee
Metabowerke GmbH and 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 Metabowerke GmbH and Co filed Critical Metabowerke GmbH and Co
Publication of GB1434474A publication Critical patent/GB1434474A/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
    • 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)
  • Drilling And Boring (AREA)

Abstract

1434474 Controlling speed of electric drills METABOWERKE KG OLOSS RAUCH & SCHNIZLER 30 April 1974 [12 May 1973] 18865/74 Heading H2J A universal motor 6 for use in electric drilling apparatus is controllable both in a constant speed mode and a constant power mode. When the motor is being used for normal drilling operations a switch 3<SP>1</SP> is coupled to the elongate contacts 9, 10 and switch 30 is closed to ehortcircuit thyristor 24. Power control is effected by movement of the contact 3<SP>1</SP> over the fixed contacts 9, 10 which movement alters the setting of potentiometer 14 to alter the firing angle of thyristor 15 to supply power independent of loading to the motor 6 in the range from zero to full half-cycle conduction. When the drill is to be used for driving attachments and constantspeed operation is required, contact 3<SP>1</SP> is moved to contacts 9 and 11 thereby shorting out thyristor 15 and switch 30 is opened. Potentiometer 22 is set to provide a required-motor speed and this voltage is compared with the back e.m.f. of the motor to fire thyristor 24 at points in the appropriate half-cycles to provide constant speed operation.
GB1886574A 1973-05-12 1974-04-30 Closs rauch schnizler portable drills driven by electric motors Expired GB1434474A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732324174 DE2324174A1 (en) 1973-05-12 1973-05-12 ELECTRIC MOTOR DRIVEN HAND DRILL WITH CONTROLLED SPEED

Publications (1)

Publication Number Publication Date
GB1434474A true GB1434474A (en) 1976-05-05

Family

ID=5880819

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1886574A Expired GB1434474A (en) 1973-05-12 1974-04-30 Closs rauch schnizler portable drills driven by electric motors

Country Status (2)

Country Link
DE (1) DE2324174A1 (en)
GB (1) GB1434474A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2817814C2 (en) * 1978-04-22 1986-06-19 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Electric hand drill with speed control or regulation
DE2933355A1 (en) * 1979-08-17 1981-03-26 Scintilla Ag, Solothurn ELECTRIC HAND TOOL
DE3139724A1 (en) * 1981-10-06 1983-04-21 J. Wagner Gmbh, 7990 Friedrichshafen ELECTRICAL FEED AND CONTROL CIRCUIT FOR THE PUMP PISTON OF A SPRAY GUN
CA1253202A (en) * 1984-03-23 1989-04-25 Black & Decker Inc Microprocessor based motor speed control

Also Published As

Publication number Publication date
DE2324174A1 (en) 1974-11-28

Similar Documents

Publication Publication Date Title
ES8705078A1 (en) Composition for oriented drilling.
DE3175014D1 (en) Speed control circuit for an electric power tool
ES462768A1 (en) Means for stabilizing an a-c electric motor drive system
ES2056131T3 (en) INDUCTION MOTOR VECTOR CONTROL.
GB1448192A (en) Arc welding apparatus and method of controlling an arc welding apparauts
ATE27434T1 (en) APPARATUS FOR HEAT SEALING THERMOPLASTIC TAPE.
GB1485670A (en) Method and apparatus for regulating mining machines
GB1434474A (en) Closs rauch schnizler portable drills driven by electric motors
ZA817991B (en) Electrical switchgear control means
ES471643A1 (en) D.C. motor speed control apparatus having both armature current rate control and zero current deadtime optimized
JPS51131044A (en) Ac elevator controlling device
GB1459148A (en) Touch button control system
GB1358494A (en) Washing machine control circuit
KR830008457A (en) Decentralized field controller and method
ES467928A1 (en) Method and an apparatus for controlling a crusher
GB1060550A (en) Electrical circuit for controlling the polarity and magnitude of a load current
US4270072A (en) Current supply circuit of cutting drum motors on a mining machine
JPS5629488A (en) Controlling circuit of motor
AU543810B2 (en) Rotary drive for tunnelling machine
GB1073109A (en) Trigger operated speed control assembly for electric motors
GB1102545A (en) Improved toy space ship
SU729780A1 (en) Reversible control rectifier
JPS555207A (en) Control device for adaptability of boring machine
SU685770A1 (en) Control apparatus of electric drive of bucket-wheel excavator boom
JPS5495089A (en) Rotary type running strip shearing device

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee