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公开(公告)号:US1371681A
公开(公告)日:1921-03-15
申请号:US41121820
申请日:1920-09-18
申请人: HUNTER RAY R
发明人: HUNTER RAY R
IPC分类号: E01B27/14
CPC分类号: E01B27/14
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公开(公告)号:US1260602A
公开(公告)日:1918-03-26
申请号:US18287617
申请日:1917-07-26
申请人: VAUGHAN DAVID F
发明人: VAUGHAN DAVID F
CPC分类号: E01B27/14
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公开(公告)号:US1033074A
公开(公告)日:1912-07-16
申请号:US1912693750
申请日:1912-04-27
申请人: SHERMAN HENRY A
发明人: SHERMAN HENRY A
CPC分类号: E01B27/14
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公开(公告)号:US900721A
公开(公告)日:1908-10-13
申请号:US900721D
申请人: GILROY FRANK J
发明人: GILROY FRANK J
CPC分类号: E01B27/14
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公开(公告)号:US759359A
公开(公告)日:1904-05-10
申请号:US1903169648
申请日:1903-08-15
申请人: FERGUSON NOAH
发明人: FERGUSON NOAH
CPC分类号: E01B27/14
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公开(公告)号:US3621786A
公开(公告)日:1971-11-23
申请号:US3621786D
申请日:1970-04-22
申请人: IVAN L JOY
发明人: JOY IVAN L
摘要: A BALLAST TAMPER HAVING A TOOL SUPPORT OPERABLE BY A ROSONANT FREQUENCY POWER DRIVE. THE DIRECTION OF THE TAMPERING FORCE ON THE TOOL IS CONTROLLED BY PROVIDING A PAIR OF RESONANT FREQUENCY ACTUATORS, EACH OPERABLY CONNECTED TO A SEPARATE FORCE-TRANSMITTING BRANCH MEMBER OF A BIFURCATED TOOL MOUNTING STRUCTURE. THE OTHER ENDS OF THE BRANCH MEMBERS ARE CONNECTED TOGETHER TO A COMMON POINT ON THE TOOL SUPPORT. THE RELATIVE VIBRATION PHASE RELATIONSHIP OF THE POWER DRIVES IS CONTROLLABLY VARIABLE THROUGH ONE HUNDRED AND EIGHTY DEGREES WHEREBY THE RESULTANT DIRECTON OF THE FORCE ON THE TOOL IS VARIABLE FROM VIBRATORY VERTICAL MOVEMENT TO VIBRATORY HORIZONTAL MOVEMENT AND IN PASSING BETWEEN THESE LIMITS CAN ASSUME AN ELLIPSOIDAL ORBITAL CIRCUMFERENTIAL MOVEMENT WITH THE MAJOR AXIS VERTICAL TO ELLIPSOIDAL MOVEMENT WITH THE MAJOR AXIS HORIZONTAL PROVIDING IN THE INTERMEDIATE RELATIONS FORCES BOTH HORIZONTAL AND VERTICAL AND VARIABLE IN BOTH DIRECTION AND MAGNETUDE BY VARIATION TO THE RELATIVE POWER DRIVE PHASE RELATIONSHIP OF THE TWO ACTUATORS.
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公开(公告)号:US2776841A
公开(公告)日:1957-01-08
申请号:US42396154
申请日:1954-04-19
发明人: PROCHAZKA FRANK J
IPC分类号: E01B27/14
CPC分类号: E01B27/14 , Y10T279/17076
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