GB1091149A - Control circuit for use in relating the frequency of a train of pulses to a reference time period - Google Patents
Control circuit for use in relating the frequency of a train of pulses to a reference time periodInfo
- Publication number
- GB1091149A GB1091149A GB2032066A GB2032066A GB1091149A GB 1091149 A GB1091149 A GB 1091149A GB 2032066 A GB2032066 A GB 2032066A GB 2032066 A GB2032066 A GB 2032066A GB 1091149 A GB1091149 A GB 1091149A
- Authority
- GB
- United Kingdom
- Prior art keywords
- frequency
- train
- pulses
- relating
- control circuit
- 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
- 230000001934 delay Effects 0.000 abstract 1
- 238000009958 sewing Methods 0.000 abstract 1
Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B51/00—Applications of needle-thread guards; Thread-break detectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15C—FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMPUTING OR CONTROL PURPOSES
- F15C1/00—Circuit elements having no moving parts
- F15C1/003—Circuit elements having no moving parts for process regulation, (e.g. chemical processes, in boilers or the like); for machine tool control (e.g. sewing machines, automatic washing machines); for liquid level control; for controlling various mechanisms; for alarm circuits; for AC-DC transducers for control purposes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
1,091,149. Frequency threshold circuit. SINGER CO. May 7, 1966, No. 20320/66. Heading G4P. [Also in Division D1] A logical circuit Fig 4, implemented by fluid-switching elements (Fig. 1, not shown), is such that on receipt of a pulse train a having a bit-period equal to two delays 40, 54, no output f is produced (Fig. 2A, not shown), but with an input pulse train of lower (Fig. 2B, not shown) or higher (Fig. 2C, not shown) frequency an output f is produced. As described the circuit is used to indicate whether yarn (Fig. 1, not shown) is being fed at the correct speed to a sewing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2032066A GB1091149A (en) | 1966-05-07 | 1966-05-07 | Control circuit for use in relating the frequency of a train of pulses to a reference time period |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2032066A GB1091149A (en) | 1966-05-07 | 1966-05-07 | Control circuit for use in relating the frequency of a train of pulses to a reference time period |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1091149A true GB1091149A (en) | 1967-11-15 |
Family
ID=10144024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2032066A Expired GB1091149A (en) | 1966-05-07 | 1966-05-07 | Control circuit for use in relating the frequency of a train of pulses to a reference time period |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1091149A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2135703A (en) * | 1983-02-25 | 1984-09-05 | Celestion Wood Limited | Warning device |
-
1966
- 1966-05-07 GB GB2032066A patent/GB1091149A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2135703A (en) * | 1983-02-25 | 1984-09-05 | Celestion Wood Limited | Warning device |
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