Osawa Precision Industries, Ltd.

Micron Corporation

Micron Instrument Inc.

Iwao Hasegawa

Toshiyuki Kidokoro

Gary E Miller

A weft yarn feeding device includes a feed roller which rotates at a circumferential speed equal to a running speed of a weft and a pinch roller which moves in and out of contact with the circumference of the feed roller with the weft in between. The rollers are provided between a length measuring device and a main nozzle for injecting a fluid. Upon commencement of feeding of the weft, the feed roller and the pinch roller are brought into mutual pressure contact to positively feed the weft toward the main nozzle. Further, the feed roller surface has a large frictional coefficient and the pinch roller surface has a very small frictional coefficient.

Roller type weft yarn feeding device

A weft feeding device which alleviates an excessive tension acting on the weft upon feeding of the weft and inhibits breakage of the weft includes a gripper to grip the weft at prescribed times, a length measuring roller located downstream of the gripper, and a pinch roller to hold the weft against the roller at prescribed times. Opening and closing of the gripper is linked with movement of the pinch roller into and out of contact with the length measuring roller. A linear or a rotary solenoid is provided to operate the pinch roller and the gripper by a pulse width modulation method or a linear method.

Weft feeding device for fluid weaving machine

A battery powered camera with a collapsible handgrip movable between a closed and an extended position is equipped with a battery checker that signals when the battery drops in capacity to a predetermined level. The battery checker is operable only during the period in which the handgrip is moved between the closed and extended position or vice versa. The battery powered camera further comprises means for signalling a switching state in which the main power switch remains closed. The signalling means is also operable only when the handgrip is being moved between closed and extended positions.

Battery powered camera

An automatic focusing unit of the invention is detachably mounted on a camera having a focusing tube which is adjustable to focus photographic lens on an object to be photographed. The automatic focusing unit includes a lens position detector which is urged to project outwardly from the housing of the unit and come into contact with the focusing tube to detect the position of the lens when the unit is mounted on the camera. The lens position detector is withdrawn into the housing of the unit against a biasing force when an external force is exerted thereon and successfully protected from any damage occurring from erroneous mounting of the unit on the camera.

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Tokyo, Japan

Iwao Hasegawa