GB191410251A - Improvements in Indicators. - Google Patents

Improvements in Indicators.

Info

Publication number
GB191410251A
GB191410251A GB191410251DA GB191410251A GB 191410251 A GB191410251 A GB 191410251A GB 191410251D A GB191410251D A GB 191410251DA GB 191410251 A GB191410251 A GB 191410251A
Authority
GB
United Kingdom
Prior art keywords
charging
dynamo
winding
resistance
contacts
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
Inventor
Frederick Gilbert Brettell
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of GB191410251A publication Critical patent/GB191410251A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/16—Indicators for switching condition, e.g. "on" or "off"

Landscapes

  • Secondary Cells (AREA)

Abstract

10,251. Brettell, F. G., [Apple Electric Co.]. April 25. Electro-magnetic switches, with high and low resistance windings, used in dynamo-battery systems for motor-car lighting. Current flows from the shunt machine 48 through the lowresistance winding of the magnet 33 to the core and thence by the wire 39 and spring 62 to the contacts 52 and high-resistance winding 51. When the dynamo voltage is sufficient, the charging-circuit is closed at 31, 36, the contact at 62, 52 being opened after the said charging-circuit is closed. A non-inductive resistance 59 is shunted across the high resistance winding to prevent sparking at the contacts 62, 52. If the battery should inadvertently be connected up with wrong polarity, the polarity of the dynamo will reverse when it is thrown on the cells, and the switch will open momentarily and then close again, and the charging will proceed as if the connexion had not been wrongly made. An indicator of special construction is operated by the armature to show the position of the switch.
GB191410251D 1914-04-25 1914-04-25 Improvements in Indicators. Expired GB191410251A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191410251T 1914-04-25

Publications (1)

Publication Number Publication Date
GB191410251A true GB191410251A (en) 1915-02-18

Family

ID=32583555

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191410251D Expired GB191410251A (en) 1914-04-25 1914-04-25 Improvements in Indicators.

Country Status (1)

Country Link
GB (1) GB191410251A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5140717A (en) * 1990-03-30 1992-08-25 Uneedit, Inc. Cleaning device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5140717A (en) * 1990-03-30 1992-08-25 Uneedit, Inc. Cleaning device

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