GB1197690A - Variable Resistor with Rectangular Resistance Element. - Google Patents
Variable Resistor with Rectangular Resistance Element.Info
- Publication number
- GB1197690A GB1197690A GB48858/68A GB4885868A GB1197690A GB 1197690 A GB1197690 A GB 1197690A GB 48858/68 A GB48858/68 A GB 48858/68A GB 4885868 A GB4885868 A GB 4885868A GB 1197690 A GB1197690 A GB 1197690A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coating
- substrate
- contact
- collector
- resistance
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Adjustable Resistors (AREA)
Abstract
1,197,690. Variable resistors. STACKPOLE CARBON CO. 15 Oct., 1968 [23 Oct., 1967], No.48858/68. Heading H1S. A rotary variable resistor comprises a substrate, a coating 3 of resistance material thereon of rectangular shape, a pair of terminals 4 projecting from the edge of the coating, at least one of the terminals being at a corner of the coating, said coating having a gap 6 extending from said edge between said terminals and then part way around the centre of the coating. The substrate and coating are equipped with an aperture 5 for receiving a rotatable shaft. The resistance curve can be adjusted by punching holes 8 or a notch in the substrate, or by forming grooves in the substrate and coating the grooves with the resistance material in order to lower the resistance of that portion (Fig. 3, not shown). Various alternative methods of forming the gap are described including one in which the slot is cut in the substrate before the resistance coating is applied (Figs. 3 and 4, not shown), and one in which an integral ridge is formed on the substrate, the substrate then being coated and the coating on the ridge being removed (Figs. 5 and 6, not shown). Three potentiometers utilizing the invention are described. In the first, a metal current collector is attached to the face of the substrate opposite the coating, two sliders being provided on the rotatable spindle to contact the coating and the collector. In the other two embodiments the coating and the collector are placed in a spaced-apart face to face relationship on separate substrates with an insulating rotor carrying the contact disposed therebetween. In one arrangement (Figs. 10 to 13, not shown), the contact is in the form of a wide ring or a coil spring (42) which contacts both the coating and the collector and abuts the outer casing of the device. In another (Figs. 14 to 17, not shown), the contact is in the form of a metal bridging contact (69) disposed in an aperture in the rotor.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US67815967A | 1967-10-23 | 1967-10-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1197690A true GB1197690A (en) | 1970-07-08 |
Family
ID=24721640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB48858/68A Expired GB1197690A (en) | 1967-10-23 | 1968-10-15 | Variable Resistor with Rectangular Resistance Element. |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3448428A (en) |
| BE (1) | BE722781A (en) |
| DE (1) | DE1804686A1 (en) |
| FR (1) | FR1589874A (en) |
| GB (1) | GB1197690A (en) |
| NL (1) | NL6815072A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4184140A (en) * | 1978-12-14 | 1980-01-15 | Allen Bradley Company | Two-piece trimming potentiometer |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1767715A (en) * | 1927-02-19 | 1930-06-24 | Central Radio Lab | Electrical resistance |
| US2962393A (en) * | 1953-04-21 | 1960-11-29 | John G Ruckelshaus | Method of preparing electrical resistors |
| US2744987A (en) * | 1954-03-18 | 1956-05-08 | Ohio Commw Eng Co | Electrical resistance heating elements |
| US2837619A (en) * | 1954-08-30 | 1958-06-03 | Stein Samuel | Strain sensitive element and method of manufacture |
| US2886854A (en) * | 1955-01-07 | 1959-05-19 | Albert W Franklin | Resistor grid and method of making |
| GB886488A (en) * | 1957-05-20 | 1962-01-10 | Plessey Co Ltd | Improvements in and relating to variable resistors and potentiometers |
| GB839315A (en) * | 1958-11-24 | 1960-06-29 | Metal Products Ltd Ab | Improvements in or relating to resistor units |
| US3397374A (en) * | 1967-07-06 | 1968-08-13 | Stackpole Carbon Co | Two-piece potentiometer |
-
1967
- 1967-10-23 US US678159A patent/US3448428A/en not_active Expired - Lifetime
-
1968
- 1968-10-15 GB GB48858/68A patent/GB1197690A/en not_active Expired
- 1968-10-22 NL NL6815072A patent/NL6815072A/xx unknown
- 1968-10-23 BE BE722781D patent/BE722781A/xx unknown
- 1968-10-23 FR FR1589874D patent/FR1589874A/fr not_active Expired
- 1968-10-23 DE DE19681804686 patent/DE1804686A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| NL6815072A (en) | 1969-04-25 |
| BE722781A (en) | 1969-04-01 |
| US3448428A (en) | 1969-06-03 |
| DE1804686A1 (en) | 1969-06-19 |
| FR1589874A (en) | 1970-04-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |