GB1073990A - Improvements in or relating to variable speed electric drives - Google Patents

Improvements in or relating to variable speed electric drives

Info

Publication number
GB1073990A
GB1073990A GB9140/65A GB914065A GB1073990A GB 1073990 A GB1073990 A GB 1073990A GB 9140/65 A GB9140/65 A GB 9140/65A GB 914065 A GB914065 A GB 914065A GB 1073990 A GB1073990 A GB 1073990A
Authority
GB
United Kingdom
Prior art keywords
pulses
speed
slip
control system
output
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
GB9140/65A
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.)
Heenan and Froude Ltd
Original Assignee
Heenan and Froude 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 Heenan and Froude Ltd filed Critical Heenan and Froude Ltd
Publication of GB1073990A publication Critical patent/GB1073990A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/11—Structural association with clutches, brakes, gears, pulleys or mechanical starters with dynamo-electric clutches
    • 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
    • H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
    • H02P29/0016—Control of angular speed of one shaft without controlling the prime mover
    • H02P29/0027—Controlling a clutch between the prime mover and the load

Abstract

1,073,990. Clutch control. HEENAN & FROUDE Ltd. March 3, 1965 [March 5, 1964], No. 9140/65. Heading F2L. [Also in Divisions G3 and H2] An electromagnetic coupling is provided with a slip-ring having an interrupted margin which co-operates with brushes so as to provide pulses for use in a speed control system, the frequency of the pulses being indicative of the speed of the output member of the coupling. As shown, a fractional horse-power motor 1 drives an eddy current cup 13 which co-operates with a rotatable field member 34 having a winding 27 connected to slip-rings 63, 65. The member 34 is coupled to an output pulley 37. Brush 101 is supplied from a direct current power supply PS so that brush 111, co-operating with the interrupted margin 67 of slip-ring 65 provides pulses, indicative of the output speed, for use in control system 113 of the type described in Specification 1,059,752. The control system 113 supplies current pulses to the field winding 27, the duration of the pulses being such that the speed of pulley 37 is maintained constant.
GB9140/65A 1964-03-05 1965-03-03 Improvements in or relating to variable speed electric drives Expired GB1073990A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US349689A US3303367A (en) 1964-03-05 1964-03-05 Electric drives

Publications (1)

Publication Number Publication Date
GB1073990A true GB1073990A (en) 1967-06-28

Family

ID=23373537

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9140/65A Expired GB1073990A (en) 1964-03-05 1965-03-03 Improvements in or relating to variable speed electric drives

Country Status (5)

Country Link
US (1) US3303367A (en)
CH (1) CH428911A (en)
DE (1) DE1488483B2 (en)
FR (1) FR1428250A (en)
GB (1) GB1073990A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2147461A (en) * 1983-09-26 1985-05-09 Goodrich Co B F Slip ring assembly and method of manufacture
US4871935A (en) * 1983-09-26 1989-10-03 The B.F. Goodrich Company Slip ring assembly and method of manufacture

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3140405A1 (en) * 1980-11-22 1982-06-24 Fichtel & Sachs Ag, 8720 Schweinfurt WASHING MACHINE DRIVE
US4400638B1 (en) * 1981-08-20 1994-11-29 Stromag Inc Shaft mounted eddy current drive
US5627422A (en) * 1993-03-18 1997-05-06 Paul D. Boggs, III Shaft mounted eddy current drive
US5650679A (en) * 1993-03-18 1997-07-22 Boggs, Iii; Paul Dewey Eddy current drive
US5446327A (en) * 1993-03-18 1995-08-29 Boggs, Iii; Paul D. Shaft mounted eddy current drive
US5434461A (en) * 1993-03-18 1995-07-18 Boggs, Iii; Paul D. Shaft mounted eddy current drive
US5465018A (en) * 1993-03-18 1995-11-07 Boggs, Iii; Paul D. Shaft mounted eddy current drive
AU2009314030B2 (en) * 2008-11-12 2014-03-06 Horton, Inc. Two-speed clutch and retro-fit kit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2147461A (en) * 1983-09-26 1985-05-09 Goodrich Co B F Slip ring assembly and method of manufacture
GB2182209A (en) * 1983-09-26 1987-05-07 Goodrich Co B F Slip ring assembly and method of manufacture
US4871935A (en) * 1983-09-26 1989-10-03 The B.F. Goodrich Company Slip ring assembly and method of manufacture

Also Published As

Publication number Publication date
FR1428250A (en) 1966-02-11
DE1488483B2 (en) 1970-11-05
US3303367A (en) 1967-02-07
DE1488483A1 (en) 1969-10-23
CH428911A (en) 1967-01-31

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