GB511178A - Improvements in and relating to rheostats and potentiometers - Google Patents
Improvements in and relating to rheostats and potentiometersInfo
- Publication number
- GB511178A GB511178A GB30786/37A GB3078637A GB511178A GB 511178 A GB511178 A GB 511178A GB 30786/37 A GB30786/37 A GB 30786/37A GB 3078637 A GB3078637 A GB 3078637A GB 511178 A GB511178 A GB 511178A
- Authority
- GB
- United Kingdom
- Prior art keywords
- resistance
- terminal
- sliding contact
- contact
- terminals
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C10/00—Adjustable resistors
- H01C10/30—Adjustable resistors the contact sliding along resistive element
- H01C10/32—Adjustable resistors the contact sliding along resistive element the contact moving in an arcuate path
- H01C10/34—Adjustable resistors the contact sliding along resistive element the contact moving in an arcuate path the contact or the associated conducting structure riding on collector formed as a ring or portion thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C10/00—Adjustable resistors
- H01C10/30—Adjustable resistors the contact sliding along resistive element
- H01C10/32—Adjustable resistors the contact sliding along resistive element the contact moving in an arcuate path
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Adjustable Resistors (AREA)
Abstract
511,178. Variable resistances. INTERNATIONAL RESISTANCE CO. Nov. 9, 1937, No. 30786. Convention date, Jan. 7. [Class 37] A variable resistance or potentiometer particularly for use as a volume control comprises an insulating support 43 with inner portions 46, 47, and a narrow annular coating 80, e.g. one-eighth of an inch wide, of resistance ink, points on which are connected by ribbons 50-51 of highly conductive coating material to rivets 41, 40, situated in the portions 46, 47, of the support within the resistance ring 80. These rivets secure and make contact with terminals 26, 25. The sliding contact is formed with a number of individual contact arms 61, Fig. 6, for example of phosphor bronze wire, having a smooth unbroken surface at the point 61a at which they engage the resistance strip. These wires are clamped at one end by a strap 59b on a rotable arm 39 and are free to move vertically at their other ends. The ends of the resistance strip are of high and low potential and are connected to terminals 27, 28, respectively. The sliding contact is connected to a third terminal 29 by means of a coil 58 of spring wire having a substantial number of turns. Riveted to the centre terminal 28 is a member 38 which is bent down at one end 38a so as to make contact with the low potential end of the resistance strip. The member 38 has also a raised portion 38c which extends over the head of the rivet 36 that secures the terminal 27 to the high potential end of the resistance, as to serve as an electrostatic shield between this and the sliding contact. Specifications 431,597 and 512,650 are referred to
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US119469A US2240565A (en) | 1937-01-07 | 1937-01-07 | Volume control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB511178A true GB511178A (en) | 1939-08-09 |
Family
ID=22384570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB30786/37A Expired GB511178A (en) | 1937-01-07 | 1937-11-09 | Improvements in and relating to rheostats and potentiometers |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2240565A (en) |
| GB (1) | GB511178A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2908882A (en) * | 1958-03-28 | 1959-10-13 | Herbert A Gottschall | Potentiometer |
| US3195026A (en) * | 1962-09-21 | 1965-07-13 | Westinghouse Electric Corp | Hermetically enclosed semiconductor device |
-
1937
- 1937-01-07 US US119469A patent/US2240565A/en not_active Expired - Lifetime
- 1937-11-09 GB GB30786/37A patent/GB511178A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2240565A (en) | 1941-05-06 |
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