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GB770737A - Improved apparatus for the recording of variations of elongation in structures - Google Patents

Improved apparatus for the recording of variations of elongation in structures

Info

Publication number
GB770737A
GB770737A GB16514/55A GB1651455A GB770737A GB 770737 A GB770737 A GB 770737A GB 16514/55 A GB16514/55 A GB 16514/55A GB 1651455 A GB1651455 A GB 1651455A GB 770737 A GB770737 A GB 770737A
Authority
GB
United Kingdom
Prior art keywords
recording
counters
elongation
movements
june
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
GB16514/55A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB770737A publication Critical patent/GB770737A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
    • G01M5/0041—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress
    • G01M5/005—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress by means of external apparatus, e.g. test benches or portable test systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Recording Measured Values (AREA)
  • Time Recorders, Dirve Recorders, Access Control (AREA)

Abstract

770,737. Strain-recorders. LUNDBERG, B. K. O. June 8, 1955 [June 9, 1954], No. 16514/55. Class 106 (2). The occurrences of elongation changes due to changing loads, e.g. in the structure of an aircraft or of a ship, are mechanically transmitted to recording counters. A beam 9, Fig. 1, is secured at 11 to the structure 1 and passes through a bearing 5 on a plate 3 secured to the structure 1 at a distant point 7. The relative movements of the beam 9 and structure 1 are counted on recording counters 17, 19, one for each direction of movement, by resilient pawls 13, 15 mounted on the beam 9, locking pawls 21, 23 being provided. As shown, the counters record positive or negative changes in elongation of the structure 1 which exceed a predetermined magnitude. In a further embodiment, the movements of the beam 9 are amplified by a lever system before application to the counters. In another embodiment, the amplified movements of the beam 9 rotate the drive of a recording surface, the recording means itself being connected also, through a lostmotion device, to the levers amplifying the beam movement.
GB16514/55A 1954-06-09 1955-06-08 Improved apparatus for the recording of variations of elongation in structures Expired GB770737A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE770737X 1954-06-09

Publications (1)

Publication Number Publication Date
GB770737A true GB770737A (en) 1957-03-20

Family

ID=20331689

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16514/55A Expired GB770737A (en) 1954-06-09 1955-06-08 Improved apparatus for the recording of variations of elongation in structures

Country Status (1)

Country Link
GB (1) GB770737A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2524639A1 (en) * 1982-04-02 1983-10-07 Martinello Settimo DEVICE AND METHOD FOR PERFORMING TESTS ON BUILDINGS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2524639A1 (en) * 1982-04-02 1983-10-07 Martinello Settimo DEVICE AND METHOD FOR PERFORMING TESTS ON BUILDINGS

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