Abstract: Folding apparatus for folding of flexible sheets, for example pieces of flatwork, being transported on a conveyor comprising parallel belts (1) and at which conveyor one or more folding stations are arranged for folding the sheets along a folding line being perpendicular to the direction in which the sheets are transported. The conveyor has a descending section at which in each folding station a friction roller (6) driven synchroneously with the conveyor is arranged, the direction of rotation being such that the upper side of the friction roller moves in the same direction as the conveyor, and in which folding station downstream the friction roller a collecting plate (8) is arranged with fingers (7) at the leading edge, which fingers in a first position of the collecting plate is introduced between the belts of the conveyor and in a second position is arranged to press against the underside of the friction roller (6). The folding apparatus is simple in construction and reliable in operation.

Abstract: In a magnetic tape recording/playing device, a reciprocating member control mechanism, in which reciprocating members employed in the channel change mechanism, FF (fast forward)/REW (rewind) mechanism and the like are interlocked with a cam which is driven by a rotary member driven by a tape drive motor, and provided between this rotary member and cam is an idler which is engaged with an electromagnetic plunger which is so arranged as to selectively transmit or shut off the rotation from the rotary member to the cam.

Abstract: An indicator mechanism in a pushbutton tuner characterized in that there is provided a front plate horizontally extending from the top end of the tuner casing. The front plate is integrally formed with two-stepped protrusions, the lower one of which is inserted in a central bore of a slidable plate mounted on the front plate so that the slidable plate can pivot about the lower protrusion as an axis. The indicator mechanism further comprising a plate spring having an open rectangular configuration for seizing the front plate between its upper and lower plates. The plate spring is also formed with a through bore in its upper plate for receiving the upper protrusion of the front plate. The front plate is further formed with projections as high as the lower protrusion by which the upper plate of the plate spring is supported.

Abstract: A video cipher processing system comprising a detecting means for detecting average tone variation of TV video signals, an extracting means for extracting at random at least some of outputs from the detecting means as a result of the detection and a ciphering means for ciphering video signals by inverting or non-inverting polarities of video signals in response to outputs extracted at random by the extracting means.

Abstract: A method for making a cervical contraceptive diaphragm provides for fabricating the entire dome assembly in a separate step, thereafter inserting a toroidal spring within a toroidal chamber pre-formed in a flange affixed to the base of the dome structure, the spring being sealed in by a separate sealing process preferably by a thin filament of vulcanizable rubber laid along the flange away from the spring. Local heating of the filament to cure it and seal the flange about the spring provides for a spring not interpenetrated by liquid elastomer during the curing process, resulting in a free floating spring. The method allows the fabrication of structures employing relatively stiff springs of limited radial compliance, so that the diaphragm may be removed from the first forming mold with minimum loss arising from tearing of the lip.

Abstract: A surface acoustic wave filter in which a surface acoustic wave element is secured on a metallic board integrally formed with coaxial type connectors and the coaxial type connectors and electrodes provided on the surface acoustic wave elements are directly connected by bonding wires.

Abstract: The smoking elimination guidance system of the invention, which is preferably incorporated in a cigarette lighter, includes a timer which is responsive to each operation of the cigarette lighter automatically to initiate a new predetermined timing period during which only a single cigarette is to be smoked. Indicator means visible on the outside of the cigarette lighter indicate to the user when the end of the current timing period is reached. Timing period modifying means are provided for automatically at various times progressively increasing the timing period initiated by the operation of the cigarette lighter, such as by a predetermined fixed percentage. Before the timer starts into operation, a smoking elimination program suitable to the user is selected automatically during a measurement period when the user's cigarette smoking rate is determined.