Tension load testing machine

Details Tension load testing machine Tension load testing machine

1992-02-12

1993-11-30

Myracle, Jerry W.

Measuring and testing

Specimen stress or strain, or testing by stress or strain...

By loading of specimen

73840, G01N 308

Patent

active

052654761

ABSTRACT:
A testing device for testing lifting equipment and accessories such as slings, shackles and the like has a longitudinally extending frame with left and right sides, each parallel to the other and to rails positioned between the frame sides. Moving carriages travel the rails to a desired position apart, such as for testing a sling of a certain length. The carriages have retractable bearing members that can engage the frame, enabling each carriage to anchor its position for testing. Sets of powered rams move the carriages apart when an accessory to be tested is attached at its ends to the two carriages. The rams are sized so that the first set has greater travel for initial stretching while the second set has higher loading capability for high end loading after stretching.

REFERENCES:
patent: 2389912 (1945-11-01), Jacoel
patent: 2533025 (1950-12-01), Martin
patent: 3010311 (1961-11-01), Meldrum et al.
Yarbrough Cable Service Inc., Rigging Supplies Brochure.

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