GB799641A - Improvements in or relating to spark recorders - Google Patents
Improvements in or relating to spark recordersInfo
- Publication number
- GB799641A GB799641A GB3152555A GB3152555A GB799641A GB 799641 A GB799641 A GB 799641A GB 3152555 A GB3152555 A GB 3152555A GB 3152555 A GB3152555 A GB 3152555A GB 799641 A GB799641 A GB 799641A
- Authority
- GB
- United Kingdom
- Prior art keywords
- spark
- segments
- nov
- knob
- alarm
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D15/00—Component parts of recorders for measuring arrangements not specially adapted for a specific variable
- G01D15/06—Electric recording elements, e.g. electrolytic
- G01D15/08—Electric recording elements, e.g. electrolytic for spark erosion
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Time Recorders, Dirve Recorders, Access Control (AREA)
- Recording Measured Values (AREA)
- Testing Relating To Insulation (AREA)
Abstract
799,641. Recording-apparatus. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Nov. 5, 1956 [Nov. 4, 1955], No. 31525/55. Class 106 (4). A spark recorder comprises an indicating needle 8 and a contact element respectively connected to the poles of a voltage source and constituting the two electrodes of a spark gap, the contact element being divided into two segments to provide alternative paths for the spark discharge current according to the position of the needle 8 whereby alarm, indicating or controlling means may be operated in dependence thereon and means for moving the element to change the position of the division along its length. The element may be an endless band, passed round pulleys 17, 18, Fig. 2, formed of a conductor 16 divided into two segments by insulating beads 19, 20 and movable through a knob 23 on the spindle of the pulley 18. Alternatively, the element may be the selected one of a series of stainless steel knife edges 7a, 7b, 7c, Fig. 3, having gaps 12a, 12b, 12c in different positions and being mounted on the circumference of a cylinder rotatable through a knob 26. A large varying voltage from the secondary winding of a spark coil is applied to the segments through brushes 21, 22, Fig. 2; 29, 30, Fig. 3, at least one of the paths including a relay for operating an alarm or control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3152555A GB799641A (en) | 1955-11-04 | 1955-11-04 | Improvements in or relating to spark recorders |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3152555A GB799641A (en) | 1955-11-04 | 1955-11-04 | Improvements in or relating to spark recorders |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB799641A true GB799641A (en) | 1958-08-13 |
Family
ID=10324393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3152555A Expired GB799641A (en) | 1955-11-04 | 1955-11-04 | Improvements in or relating to spark recorders |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB799641A (en) |
-
1955
- 1955-11-04 GB GB3152555A patent/GB799641A/en not_active Expired
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