GB907649A - Improvements relating to the detection of sudden speed changes - Google Patents

Improvements relating to the detection of sudden speed changes

Info

Publication number
GB907649A
GB907649A GB1134860A GB1134860A GB907649A GB 907649 A GB907649 A GB 907649A GB 1134860 A GB1134860 A GB 1134860A GB 1134860 A GB1134860 A GB 1134860A GB 907649 A GB907649 A GB 907649A
Authority
GB
United Kingdom
Prior art keywords
multivibrator
filament
jaw
march
duration
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
Application number
GB1134860A
Inventor
Max William Betts
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Akzo Nobel UK PLC
Original Assignee
Courtaulds PLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Courtaulds PLC filed Critical Courtaulds PLC
Priority to GB1134860A priority Critical patent/GB907649A/en
Publication of GB907649A publication Critical patent/GB907649A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/02—Details
    • G01N3/06—Special adaptations of indicating or recording means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/02—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material
    • B65H63/024—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials
    • B65H63/028—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element
    • B65H63/032—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element electrical or pneumatic
    • B65H63/0321—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element electrical or pneumatic using electronic actuators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Measurement Of Unknown Time Intervals (AREA)

Abstract

907,649. Measuring speed photo-electrically. COURTAULDS Ltd. March 30, 1961 [March 31, 1960], No. 11348/60. Class 40 (3). [Also in Group XL (c)] Sudden speed changes are detected by apparatus comprising a body having equallyspaced features of identical length, a detector whose condition is changed while a feature passes it, and a device which compares the duration of the change with a standard time and produces a signal when said duration and standard time are in a predetermined relation. A filament 3, Fig. 1, is stretched to breaking point by a jaw 2 carrying a comb 4 intercepting light from a source 6 to a photo-cell 5. The square-wave output from cell 5 is differentiated and connected to two diodes D 1 , D 2 , Fig. 2. The positive pulses pass diode D 1 to switch multivibrator V 1 , V 2 into its unstable state whence it returns after a predetermined time. If the negative pulse arrives before multivibrator V 1 , V 2 has reset, indicating that jaw 2 has speeded up due to the breaking of filament 3, the negative pulse sets the bi-stable multivibrator V 3 , V 4 to energize a relay R. Specification 872,475 is referred to.
GB1134860A 1960-03-31 1960-03-31 Improvements relating to the detection of sudden speed changes Expired GB907649A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1134860A GB907649A (en) 1960-03-31 1960-03-31 Improvements relating to the detection of sudden speed changes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1134860A GB907649A (en) 1960-03-31 1960-03-31 Improvements relating to the detection of sudden speed changes

Publications (1)

Publication Number Publication Date
GB907649A true GB907649A (en) 1962-10-10

Family

ID=9984621

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1134860A Expired GB907649A (en) 1960-03-31 1960-03-31 Improvements relating to the detection of sudden speed changes

Country Status (1)

Country Link
GB (1) GB907649A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1914765A1 (en) * 1969-03-22 1970-10-01 Teldix Gmbh Anti-lock control system for pressurized vehicle brakes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1914765A1 (en) * 1969-03-22 1970-10-01 Teldix Gmbh Anti-lock control system for pressurized vehicle brakes

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