Portable variable expansion testing device for measuring lateral

Details Portable variable expansion testing device for measuring lateral Portable variable expansion testing device for measuring lateral

1978-09-23

1978-10-31

Ciartante, Anthony V.

Measuring and testing

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

By loading of specimen

73825, G01N 310

Patent

active

041227042

ABSTRACT:
A portable testing device for directly measuring developed lateral pressure induced on a material by a vertical applied pressure while the lateral expansion is adjustable. The testing device comprises a thin-walled cylindrical sleeve-like receptacle which is capable of lateral expansion in response to a vertical applied force on the material contained in the receptacle. The sleeve is provided with a slit formed in the wall thereof which extends between the upper and lower ends thereof to define first and second side edge portions. Apparatus is provided for preventing and/or adjusting lateral movement of the first side edge portion as the vertical applied force is applied to the material contained in the receptacle. A pressure sensing cylinder is connected to the second side edge portion and has a fluid pressure gauge operatively connected thereto for sensing the developed lateral stress.

REFERENCES:
patent: 1998722 (1935-04-01), Hveem
patent: 3779085 (1973-12-01), Rice
patent: 4047425 (1977-09-01), Handy et al.

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