4374481 Adjustable socket with detachable or lockable engaging handle component

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A D J U S T A B L E SOCKET W I T H D E T A C H A B L E OR L O C K A B L E ENGAGING

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Michae Brodie

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COMPONENT

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An electronic control system for a machine tool employs a monitoring system for monitoring the absolute position of a reversible (and linearly or rotationally) movable moving m e m b e r in the machine tool. The monitoring system includes a clock, a digital feedback position counter having a predetermined count range, an exciter, a feedback device responsive to movement of the movable member, a digital position storage device, a zero crossing detector, and a zero position counter. The feedback position counter, which operates at a clock frequency, controis the exciter which provides a pulsed exciter signal to the feedback device. The feedback position counter also provides a position count Nc to the position storage device and to the zero position counter, The feedback device provides, through a zero crossing detector, a pulsed feedback signal to the position storage device (and to the zero position counter) and the phase shift between the exciter signal and feedback signal is linearly related to the displacement of the moving member. The position storage device provides a continuously updated position number Np which is also linearly related to member displacement, i.e., the position of- the member. The zero position counter typically comprised of a synchronous 4-bit bi-directional binary counter provides a zero position count Nz to the representative of the net number of times the position number Np passes through zero between consecutive samples. A computer, coupled to the position storage device and to the zero position counter, processes the position number Np and the zero position number to unambiguously detemine the speed of the moving member.

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The adjustable socket comprises a plurality of fingers pivoted by one end thereof to a socket body and enclosed within a partially rotatable shell covering the socket body. A spiral slot in the shell is engaged by a pin or the like extending f r o m the body so that when the shell is partially rotated, the shell extends or retracts axially relative to the body pottion thus opening or closing the distal ends of the fingers due to the engagement o f the outer surfaces o f the distal ends of the fingers with the curved inturned end o f the shell. This shell and fingers can be detachably locked in the desired position. This enables the fingers to adjust in order to grasp or grip a nut or bolt within the size range governed by design parameters. A spring reacts between the shell and the body portion normally retracting the shell so that the fingers are in the widest position. A handle assembly is secured to the inner end of the body and may be connected to the body by means of a clutch assembly connected when the handle assembly is pushed downwardly towards the body portion against spring pressure. Alternatively, the clutch assembly may be detachably locked in engagement between the handle c o m p o n e n t and the body portion.

43773653 METHOD AND APPARATUS FOR ULTRASONIC

BONDING