| 摘要 |
1,002,935. Electromagnets. ELDIMA A.G. June 30, 1964 [July 8, 1963], No. 26989/64. Heading H1P. An electromagnet useful in control and regulating devices such as valves, brakes and test gear comprises a core 1 and armature 7 formed with at least one pair of complementary annular ribs and grooves 15, 16 of trapezoidal cross-section so dimensioned as to provide specific relationships which are stated to result in a linear energization/pull-in force characteristic. The armature 7 is guided by a non- magnetic washer, sleeve, and pin 8... 10. The armature and core alternatively may be transposed. |
