GB189729615A - Improvements in Electrical Switches or Variable Resistances. - Google Patents

Improvements in Electrical Switches or Variable Resistances.

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Publication number
GB189729615A
GB189729615A GB189729615DA GB189729615A GB 189729615 A GB189729615 A GB 189729615A GB 189729615D A GB189729615D A GB 189729615DA GB 189729615 A GB189729615 A GB 189729615A
Authority
GB
United Kingdom
Prior art keywords
electrical switches
contacts
variable resistances
blocks
resistances
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
William Benjamin Spikins
Alfred Herbert Mayes
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 GB189729615A publication Critical patent/GB189729615A/en
Expired legal-status Critical Current

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Abstract

29,615. Splkins, W. B., and Mayes, A. H. Dec. 14. Resistances.-Blocks or strips of highly-resisting material are used instead of wires in resistance switches. The materials employed are combinations of substances, such as powdered carbon, metallic oxides, peroxides, or sulphates, plaster of Paris, &c. Fig. 1 shows one arrangement. The resistance blocks B ... B<6> are interposed between the contacts A' over which the arm C works. In modified forms, the contacts are secured on a strip or bar of the insulating-material.
GB189729615D 1897-12-14 1897-12-14 Improvements in Electrical Switches or Variable Resistances. Expired GB189729615A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB189729615T 1897-12-14

Publications (1)

Publication Number Publication Date
GB189729615A true GB189729615A (en) 1898-03-19

Family

ID=32138463

Family Applications (1)

Application Number Title Priority Date Filing Date
GB189729615D Expired GB189729615A (en) 1897-12-14 1897-12-14 Improvements in Electrical Switches or Variable Resistances.

Country Status (1)

Country Link
GB (1) GB189729615A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE760029C (en) * 1940-04-27 1954-06-21 Siemens Schuckertwerke A G Resistance body for switching or control purposes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE760029C (en) * 1940-04-27 1954-06-21 Siemens Schuckertwerke A G Resistance body for switching or control purposes

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