GB261131A - Improvements in or relating to electrical interrupters - Google Patents

Improvements in or relating to electrical interrupters

Info

Publication number
GB261131A
GB261131A GB2161425A GB2161425A GB261131A GB 261131 A GB261131 A GB 261131A GB 2161425 A GB2161425 A GB 2161425A GB 2161425 A GB2161425 A GB 2161425A GB 261131 A GB261131 A GB 261131A
Authority
GB
United Kingdom
Prior art keywords
speed
contacts
disc
driven
carried
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
GB2161425A
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.)
FRANK FEARN
Original Assignee
FRANK FEARN
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 FRANK FEARN filed Critical FRANK FEARN
Priority to GB2161425A priority Critical patent/GB261131A/en
Publication of GB261131A publication Critical patent/GB261131A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents

Abstract

261,131. Fearn, F. Aug. 28, 1925. Rotary interrupters for use in connection with electromedical apparatus &c. are arranged as shown in Fig. 1 with a number of interconnected concentric contact rings on a rotary insulating plate 1 the inner ring 2 being continuous, and the outer rings 3 - - 5 being formed of varying numbers of segments so that the speed of the current interruptions may be varied. An adjustable brush 16 carried by a fixed arm 14 bears on the ring 2 and an adjustable brush 16a is carried by an arm 20 arranged so that it may be swung laterally to engage one of the outer segmental contact rings 3, 4 or 5. As the contacts are connected together interruptions in the controlled circuit occur at a frequency depending upon the particular set of contacts employed and upon the speed of the disc which when driven as shown by a gramophone motor may be controlled by the speed-regulating device 11. Alternatively, the disc may be driven by a variable-speed electric motor. In a modified form the contacts may be arranged on the periphery of a rotating insulating cylinder. The contact segments may be formed of resistance wire so that a current surge is produced before each interruption.
GB2161425A 1925-08-28 1925-08-28 Improvements in or relating to electrical interrupters Expired GB261131A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2161425A GB261131A (en) 1925-08-28 1925-08-28 Improvements in or relating to electrical interrupters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2161425A GB261131A (en) 1925-08-28 1925-08-28 Improvements in or relating to electrical interrupters

Publications (1)

Publication Number Publication Date
GB261131A true GB261131A (en) 1926-11-18

Family

ID=10165881

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2161425A Expired GB261131A (en) 1925-08-28 1925-08-28 Improvements in or relating to electrical interrupters

Country Status (1)

Country Link
GB (1) GB261131A (en)

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