GB158054A - Improvements in testing machine - Google Patents

Improvements in testing machine

Info

Publication number
GB158054A
GB158054A GB2593119A GB2593119A GB158054A GB 158054 A GB158054 A GB 158054A GB 2593119 A GB2593119 A GB 2593119A GB 2593119 A GB2593119 A GB 2593119A GB 158054 A GB158054 A GB 158054A
Authority
GB
United Kingdom
Prior art keywords
screw
slide
nut
pivoted
casing
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
GB2593119A
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.)
HENRY LYON SCOTT
Original Assignee
HENRY LYON SCOTT
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 HENRY LYON SCOTT filed Critical HENRY LYON SCOTT
Priority to GB2593119A priority Critical patent/GB158054A/en
Publication of GB158054A publication Critical patent/GB158054A/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
    • G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • G01N3/16—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces applied through gearing

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)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

158,054. Scott, H. L. Oct. 22, 1919. Reversing-gearing for testing machines in which tension is applied to the specimen by means of the longitudinal movement of a screw comprises a driving-nut engaging a screw and worked by worm gears, a pair of worms being mounted to rotate the nut alternately in opposite directions. The screw 13 is mounted to slide but not rotate in a casing 10 secured to an upright 12. A nut 15 surrounds the screw and is provided on the outside with worm teeth. Thrust bearings are placed between the nut and the casing. A pair of worms 22 are carried on short shafts in a frame 20 pivoted on a shaft 19 and motion is imparted to either worm by bevel and pulley gear, from a motor. The frame 20 may be rocked to bring either worm into gear with the teeth on the nut by a bell-crank 38, 34, one arm of which extends through the frame while the other arm is moved by a slide 39. The slide has three notches 40, 41, 42 to define the two in-gear positions and a neutral position. The screw may be reversed automatically, projections 55, 56 clamped to the screw engaging adjustable screw stops 57 in the ends of the slide. The slide is thrown over with a snap by a spring and lever device. A lever 45 pivoted at 47 to the casing is pivoted to an arm 50 also pivoted to the casing at 51 and connected to the lever 45 by a spring. When the links are moved past the straight position, the spring snaps the slide rapidly to the other extreme.
GB2593119A 1919-10-22 1919-10-22 Improvements in testing machine Expired GB158054A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2593119A GB158054A (en) 1919-10-22 1919-10-22 Improvements in testing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2593119A GB158054A (en) 1919-10-22 1919-10-22 Improvements in testing machine

Publications (1)

Publication Number Publication Date
GB158054A true GB158054A (en) 1921-01-24

Family

ID=10235641

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2593119A Expired GB158054A (en) 1919-10-22 1919-10-22 Improvements in testing machine

Country Status (1)

Country Link
GB (1) GB158054A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8410386B2 (en) 2008-08-01 2013-04-02 Abb Technology Ag Cam disk and spring excursion switch for a stored-energy spring mechanism and stored-energy spring mechanism
CN109941456A (en) * 2019-03-27 2019-06-28 重庆大学 A kind of space shuttle cable fatigue simulation experimental prototype

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8410386B2 (en) 2008-08-01 2013-04-02 Abb Technology Ag Cam disk and spring excursion switch for a stored-energy spring mechanism and stored-energy spring mechanism
CN109941456A (en) * 2019-03-27 2019-06-28 重庆大学 A kind of space shuttle cable fatigue simulation experimental prototype

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