Abstract: A housing containing an optical sensor, including a light-transmitting body, a housing base to contain the optical sensor, the housing base holding the light-transmitting body in such a way that the light-transmitting body is able to vibrate, and one or a plurality of actuators that vibrate the light-transmitting body. A sensor device includes the housing and the optical sensor contained in the housing.

Abstract: An apparatus is provided for automatically inserting an elastic tape into a binding tape, and simultaneously sewing the leading and trailing ends of the elastic tape with the binding tape to the hem of a workpiece. A pair of feed rollers and a tensioning device for the elastic tape are provided above a vertical cylindrical guide. An outlet of the vertical cylindrical guide is directed toward the presser foot of a sewing machine, and shifted between positions on and outside the sewing line of the sewing machine. A cutting device for the elastic tape in the direction crossing with the advancing direction is driven by a shaft vertically placed along the vertical cylindrical guide. An advancing speed of the trailing end of the cut elastic tape extending to the presser foot is reduced by a tape pressing device until the trailing end is fed under the presser foot.

Abstract: In a telemeter system using a measuring probe for radiating a sound pulse signal the pulse spacing of which corresponds to information to be measured such as temperature or salinity of various depths in the ocean water, in order to prevent the echo noise signal there is provided an improved receiving system which comprises a one-bit delay circuit, a pair of integrating circuits, a pulse generator and a gate. One of the integrating circuits is controlled by the signal as received and the other is controlled by a one-bit delayed signal derived from the received signal. The pulse generator generates a pulse signal having a predetermined time duration at a predetermined level of the output from the integrating circuit, and that pulse drives the gate, so as to eliminate the echo unexpectedly received during the pulse spacing.