GB970231A - Electrical safety control - Google Patents
Electrical safety controlInfo
- Publication number
- GB970231A GB970231A GB6263A GB6263A GB970231A GB 970231 A GB970231 A GB 970231A GB 6263 A GB6263 A GB 6263A GB 6263 A GB6263 A GB 6263A GB 970231 A GB970231 A GB 970231A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contacts
- conveyer
- jan
- relay
- release
- 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
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
- G01V8/20—Detecting, e.g. by using light barriers using multiple transmitters or receivers
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/181—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems
- G08B13/183—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems by interruption of a radiation beam or barrier
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geophysics (AREA)
- Control Of Conveyors (AREA)
- Control Of Electric Motors In General (AREA)
Abstract
970,231. Machinery guards. SPERRY RAND CORPORATION. Jan. 1, 1963 [Jan. 9, 1962], No. 62/63. Heading F2J. [Also in Division B8] Obstruction of the guarded area (Fig. 1, not shown) of a conveyer results in a signal of decreased strength being transmitted by photoconductive cells PC1 and 2 (in series with NPN transistor stage T1) to parallel PNP transistor stages T2, T3. This results in the release of relays A and B. This releases a relay C by opening of contacts A2, B2 in circuit C4, C, B2, A2, S1, C2. Contacts C3 thus open to release a relay Cx which controls the conveyer (not shown). Contacts C1 isolate lamps LP1, LP2 which normally activate the cells PC1 and 2 respectively. To reset the system it is necessary to press push button PB and close switch KS. Failure of almost any component of the system will cause the system to " fail safe."
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US16599562A | 1962-01-09 | 1962-01-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB970231A true GB970231A (en) | 1964-09-16 |
Family
ID=22601349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6263A Expired GB970231A (en) | 1962-01-09 | 1963-01-01 | Electrical safety control |
Country Status (7)
| Country | Link |
|---|---|
| AT (1) | AT250833B (en) |
| CH (1) | CH428944A (en) |
| DK (1) | DK109247C (en) |
| ES (1) | ES284135A1 (en) |
| GB (1) | GB970231A (en) |
| NL (1) | NL145193B (en) |
| SE (1) | SE304954B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106219257B (en) * | 2016-08-27 | 2018-06-19 | 无锡天奇信息技术有限公司 | Tire line card vehicle piece uploading automatic electrical control system |
-
1963
- 1963-01-01 GB GB6263A patent/GB970231A/en not_active Expired
- 1963-01-02 AT AT2763A patent/AT250833B/en active
- 1963-01-04 SE SE9463A patent/SE304954B/xx unknown
- 1963-01-07 ES ES284135A patent/ES284135A1/en not_active Expired
- 1963-01-07 CH CH12463A patent/CH428944A/en unknown
- 1963-01-09 DK DK8263A patent/DK109247C/en active
- 1963-01-09 NL NL287598A patent/NL145193B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DK109247C (en) | 1968-04-01 |
| AT250833B (en) | 1966-11-25 |
| ES284135A1 (en) | 1963-03-16 |
| SE304954B (en) | 1968-10-07 |
| CH428944A (en) | 1967-01-31 |
| NL145193B (en) | 1975-03-17 |
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