GB183592A - Improvements in rheostats - Google Patents

Improvements in rheostats

Info

Publication number
GB183592A
GB183592A GB1214521A GB1214521A GB183592A GB 183592 A GB183592 A GB 183592A GB 1214521 A GB1214521 A GB 1214521A GB 1214521 A GB1214521 A GB 1214521A GB 183592 A GB183592 A GB 183592A
Authority
GB
United Kingdom
Prior art keywords
commutator
resistance
brushes
ventilating
fan
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
GB1214521A
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.)
Metropolitan Vickers Electrical Co Ltd
Original Assignee
Metropolitan Vickers Electrical Co 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 Metropolitan Vickers Electrical Co Ltd filed Critical Metropolitan Vickers Electrical Co Ltd
Priority to GB1214521A priority Critical patent/GB183592A/en
Publication of GB183592A publication Critical patent/GB183592A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C10/00—Adjustable resistors
    • H01C10/46—Arrangements of fixed resistors with intervening connectors, e.g. taps
    • H01C10/48—Arrangements of fixed resistors with intervening connectors, e.g. taps including contact movable in an arcuate path

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Dc Machiner (AREA)
  • Motor Or Generator Current Collectors (AREA)

Abstract

183,592. North, N. E., and Metropolitan-Vickers Electrical Co., Ltd. April 27,1921. Controllers.-Relates to rheostats of the kind in which two contact brushes wipe continuously over a revolving structure like a commutator, having the bars connected to different points of a resistance, the brushes being separated or moved closer together in order to increase or decrease the effective resistance of the arrangement. According to the invention the revolving structure carrying the commutator bars 1, also comprises resistance elements 4 in the form of blades disposed to act as a ventilating-fan, air being drawn in axially through an opening 6 and blow cut radially through an opening 7 of a casing 5. The brushes 2, 3 which include maximum resistance in the position shown are caused to approach each other by means of gearing 16 driven through a clutch 20 from the commutator shaft 8. The apparatus may be used as a starter and ventilating-fan for a motor.
GB1214521A 1921-04-27 1921-04-27 Improvements in rheostats Expired GB183592A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1214521A GB183592A (en) 1921-04-27 1921-04-27 Improvements in rheostats

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1214521A GB183592A (en) 1921-04-27 1921-04-27 Improvements in rheostats

Publications (1)

Publication Number Publication Date
GB183592A true GB183592A (en) 1922-07-27

Family

ID=9999150

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1214521A Expired GB183592A (en) 1921-04-27 1921-04-27 Improvements in rheostats

Country Status (1)

Country Link
GB (1) GB183592A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3211891A (en) * 1963-07-05 1965-10-12 Mach & Electric Thermal fan

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3211891A (en) * 1963-07-05 1965-10-12 Mach & Electric Thermal fan

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