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2004121-pVibrator comprising an outer carcass (2) intended to be fixed to a structure to be excited, which contains at least two rotary shafts (9)
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A borer comprises a hammer, a spindle connected to rotate with a rotatable table, and a vibrator connected between the hammer and a support for
Well and exploratory drilling apparatus whose rotary motion is modified by a vibrator to provide lateral movement of its bit. There is also disclosed a
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An alternating rotary to reciprocating type actuator with two axially spaced disc members that each have a plurality of circumferentially spaced rim grooves
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A gerotor and bearing apparatus for a whirling mass orbital vibrator which generates vibration in a borehole. The apparatus includes a gerotor with an
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2010920- 1. A rotary variable capacitance element comprising: a columnar vibrator cylindrical hole 5Aa with a larger diameter than that of the co
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2009119-vibrator patented by me November 3, 1931, Patent is reduced in diameter with respect to the and rotary motion of the drill string S w
and a rotary control head for the drillstem. vibrator means disposed in said interior spaces,hose or pipe, such as a type made by Coflexip
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A rotary line for assembly of a tip for a flexible hose includes an automatic rotary for feeding the line with tip bodies and insert, transportation
