GB330664A - Improvements in or relating to electrical resistances - Google Patents
Improvements in or relating to electrical resistancesInfo
- Publication number
- GB330664A GB330664A GB897129A GB897129A GB330664A GB 330664 A GB330664 A GB 330664A GB 897129 A GB897129 A GB 897129A GB 897129 A GB897129 A GB 897129A GB 330664 A GB330664 A GB 330664A
- Authority
- GB
- United Kingdom
- Prior art keywords
- casing
- end plate
- powdered
- wires
- secured
- 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
- H01C10/10—Adjustable resistors adjustable by mechanical pressure or force
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
330,664. Jones, E. March 20, 1929. Powdered and granular resistances.-Powdered or granular resistance material d is contained in a cartridge consisting o f metal end plates b, b<1> connected by a flexible band a of non-conducting material, such as a strip of rubber-proofed canvas or linen having its ends vulcanized together. This band is secured to the end plates b, b<1> by wires c, each end plate consisting of two members clipped together, one having a flange so as to form a groove e 'which prevents displacement of the wires c. The cartridge is secured in a twopiece casing f, f<1> by means of a terminal screw g passing through the lower end plate b<1>, which is insulated from the casing f by insulating discs h. The upper end plate b is connected to the casing by a pig-tail connection o, a terminal p also being connected to the casing. The upper end plate b is provided with a key-hole slot j which detachably engages a groove in a screwed spindle k passing through a screwed sleeve l provided with an insulating knob m, by rotating which the compression of the material d may be varied.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB897129A GB330664A (en) | 1929-03-20 | 1929-03-20 | Improvements in or relating to electrical resistances |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB897129A GB330664A (en) | 1929-03-20 | 1929-03-20 | Improvements in or relating to electrical resistances |
Publications (1)
Publication Number | Publication Date |
---|---|
GB330664A true GB330664A (en) | 1930-06-19 |
Family
ID=9862832
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB897129A Expired GB330664A (en) | 1929-03-20 | 1929-03-20 | Improvements in or relating to electrical resistances |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB330664A (en) |
-
1929
- 1929-03-20 GB GB897129A patent/GB330664A/en not_active Expired
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