Technikatörténeti szemle 11. (1979)

TANULMÁNYOK - Petik Ferenc: The development of material testing machines

8. Fairbarn’s tube bending tester

Loads were still applied in step increments. The tube being tested was approx. 6 m length and 300 mm diameter.

Parallel with the development of testing maohines, independent material

9. An early testing machine of Kirkaldy

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