US Patent: 1,533,281 - Testing machine


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US Patent: 1,533,281

Testing machine

Patentee:

Herbert E. Tautz (exact or similar names) - Milwaukee, WI

USPTO Classifications:

177/208, 188/134, 403/327, 73/816, 73/840, 74/18.2, 74/55

Tool Categories:

Assignees:

Elisha Jesse Cady - River Forest, IL

Manufacturer:

Not known to have been produced

Witnesses:

Unknown

Patent Dates:
Applied:	Jun. 13, 1923
Granted:	Apr. 14, 1925

Patent Pictures:

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Description:

"The invention relates to certain new and useful improvements in machines for testing sheet materials, such as paper, and its primary object is to provide improved means for controlling and operating the pressure-clamp by which the material is held in place and the elastic diaphragm acting against the material."