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Portable variable expansion testing device for measuring lateral pressure induced on a material by a vertical applied pressure
Portable variable expansion testing device for measuring lateral pressure induced on a material by a vertical applied pressure
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机译:便携式可变膨胀测试装置,用于测量垂直施加压力在材料上引起的侧向压力
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摘要
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.
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