The sensitive device herein described, comprising in combination a receptacle containing material such as particles of oxidized metal forming a part of an electric circuit, an electromagnet in said circuit, and devices controlled thereby for turning the receptacle end for end when said magnet is energized, as set forth.
(The sensitive device herein; described; a receptacle containing material such as particles of oxidized metal forming a part of an electric circuit, an electromagnet in said circuit, and devices) (particles of oxidized metal forming a part of an electric circuit, an electromagnet in said circuit, and devices; controlled; )
The sensitive device herein particles of oxidized metal forming a part of an electric circuit, an electromagnet in said circuit, and devices
described controlled
a receptacle containing material such as particles of oxidized metal forming a part of an electric circuit, an electromagnet in said circuit, and devices