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Otto Stern Ph.D.

Otto Stern Ph.D.

The Nobel Prize in Physics 1943

Award: "for his resonance method for recording the magnetic properties of atomic nuclei"


Publication No:US 2496420 A
Title:Apparatus for dynamic compression testing
Publication Type:Grant
Publication Date:Feb 7, 1950
Filing Date:Dec 18, 1946
Inventors:Otto Stern
Assignee:Otto Stern
Abstract:This invention relates to apparatus for making compression tests of various metals.
(a) It is an object of this invention to provide test apparatus having a hydraulic velocity reducer. Such apparatus makes possible a compression test at low velocity with sufficient available energy, although it uses a small mass as a source of that energy. Moreover, since the energy is furnished by a falling weight of low mass, the impact or force applied to the test specimen can be accurately reproduced for a series of repeated tests.
(b) It is a further object of this invention to provide a test apparatus in which the force applied to the test specimen is indicated on an oscilloscope or is recorded on an oscillograph.
(c) Yet another object of this invention is to provide a compression testing apparatus having a trigger or starting circuit which allows the beam of the cathode ray tube to flow when the weight is dropped, so that the cathode ray tube is made operative although the beam is not normally flowing.
(d) Other and further objects of this invention will readily be apparent to those skilled in the art, or can be learned by a reference to the annexed drawing and specification.
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Name: Otto Stern
Birth: 17 February 1888, Sorau (now Zory), Germany (now Poland)
Death: 17 August 1969, Berkeley, CA, USA
Institution: Carnegie Institute of Technology, Pittsburgh, PA, USA
Award: "for his resonance method for recording the magnetic properties of atomic nuclei"
Subject: nuclear physics
Portion of Cash: 1/1