Abstract: An apparatus for securing a musical instrument to a waist belt that is attached relative to a performer's waist. The apparatus includes a first anchor for being attached to the waist belt; a second anchor for being attached to the musical instrument; and securing structure for removably securing the first anchor to the second anchor.

Abstract: A viewfinder of the real image type which is compact and high in performance and especially in dust-proof performance and can be produced at a low cost. The viewfinder comprises an indication mask for making an in-viewfinder indication on or near an image forming plane of an objective. The indication mask is disposed in an enclosed spacing defined by an eyepiece, the objective, and first and second mirror holders coupled airtight to each other. First to fourth mirrors are disposed in the enclosed spacing at positions corresponding to reflecting faces of a Porro prism of a Keplerian viewfinder system. The first and fourth mirrors are securely mounted or formed on the first mirror holder while the second and third mirrors are securely mounted on the second mirror holder. The objective and the eyepiece are provided airtight on the first mirror holder in an opposing relationship to the first and fourth mirrors, respectively.

Abstract: A lens barrel incorporating electric parts such as motors. The lens barrel has a double-sided printed circuit board disposed such that its major plane extend substantially orthogonally to the optical axis. Chip elements such as circuit elements are mounted on the front side of the double-sided printed circuit board while flexible connecting members for connection to the electrical parts are provided on the rear side of the double-sided printed circuit board. A land for allowing electrical check of electric circuit is also provided on the rear side of the double-sided printed circuit board.

Abstract: An appartus for controlling a mechanical music-maker, such as a player-piano has a multiplicity of mechanical actuators and uses a vacuum as the motive force therefor. The mechanical actuators, which actuate corresponding musical keys, are each controlled by a valve which connects the vacuum to the mechanical actuator when opened. The valve is opened when the vacuum side thereof is vented to atomsphere by the first venting system. A second venting system is provided, which can be isolated from the first venting system. The second venting system utilizes electrically energizable solenoid valves to control the venting of the vacuum side of each valve when the first venting system is isolated therefrom.

Abstract: Disclosed is a collating device for collating the images on a photographic film with those printed on a printing paper from the photographic film while conveying the film and the printing paper. The collating device includes a reading device for reading a frame number for identifying the frame image on the film, and a printing device for printing the frame number which has been read by the reading device on the printing paper on which has been printed the image on the film which corresponds to that frame member. The frame numbers of the film are printed on the printing paper on which have been printed the images on the film. In consequence, the print images on the printing paper are easily made to correspond to the corresponding frame images on the film, and designation of the frames is facilitated.

Abstract: An action mechanism for the piano in which a jack is resiliently and rotatably mounted on a rear portion of a key, a jack receiver and a push-out protrusion are provided on a hammer support member that is rotatably mounted at its one end on a hammer shank rail via a flange over the key, and when the key is depressed, the hammer is turned toward the sound producing member owing to the engagement of the tip of said jack and said jack receiver and, at the same time, the engagement between the jack and the jack receiver is released by the push-out protrusion.

Abstract: The radial arm strike rail assembly is a system for measurement of bearings, directions, and stereophotography for geologic mapping, particularly where magnetic compasses are not appropriate. The radial arm, pivoting around a shaft axis, provides a reference direction determination for geologic mapping and bearing or direction determination. The centerable and levelable pedestal provide a base for the radial arm strike rail and the telescoping camera pedestal. The telescoping feature of the radial arm strike rail allows positioning the end of the rail for strike direction or bearing measurement with a goniometer.

Abstract: An autowinder for use with all weather or underwater cameras includes a sealed generally U-shaped housing having a threaded attachment to a camera body. An internal power source and bidirectional motor are supported within the housing and operatively coupled to the film advance mechanism of the camera by a drive belt system. A generally L-shaped lever is pivotally supported upon the autowinder body exterior and is operated in response to a trigger to actuate the shutter mechanism of the camera. A magnet is supported upon the L-shaped trigger arm and actuates the autowinder function within the housing. Magnetic limit switches are operative to control the direction and extent of motor operation to provide appropriate autowinding action.

Abstract: The actions of a manual with piano effect for use in electronic organs have keys which are pivotable about a first horizontal axis and carry rigid or elastic pushers abutting plate-like motion receiving portions on the first arms of discrete reaction levers. The second arm of each lever carries a weight which urges the motion receiving portion of the first arm against a pad at the adjacent end of the pusher. The distance of the point of contact between the pusher and the first arm of the reaction lever from the respective key in idle posotion of the key is greater than the distance of the key from the pivot axis of the reaction lever. This renders it possible to ensure that the resistance of the reaction lever to further depression of the respective key decreases in response to pivoting of the key through a predetermined angle from its idle position. The pusher engages only the first arm of the respective reaction lever and is fixedly secured to the respective key.

Abstract: A wind instrument mouthpiece includes a reed (2) which is joined to the barrel (1) by a ligature (5) including a cradle (6), the edges of which are joined by a flexible, tension-resistant rod (7) including a nut for adjusting its length between said edges in order to adapt the ligature (5) to the dimensions of the barrel (1). This mouthpiece is also associated with a mouthpiece cover (14), which includes a slipcase (15) on the inside of which a spring device (16) is disposed, which is intended in the protection position to press the reed (2) of the instrument against the edge of the opening of the chamber (1b).

Abstract: A camera has a lens system changeable as to focal length, which is driven by a driving device so as to change the focal length thereof. The driving mechanism includes a first shifting mechanism for shifting one lens of the lens system stepwise to predetermined positions in a direction parallel to the optical axis of the lens system and a second shifting mechanism for shifting another lens of the lens system stepwise with respect to the one lens in that same direction, thereby changing the focal length of the lens system.

Abstract: A plurality of pivotally mounted lens frames are positioned by cam means and gear means to produce normal, tele, and pan viewing.

Abstract: A barrier mechanism of a camera is provided which includes a cylindrical lens cover which has at its front face an aperture and which is supported to move between a photographing position and an accommodating position in the rear of the photographing position. At least one barrier is provided on the front end of the lens cover to open and close the aperture; and a barrier opening and closing mechanism which opens and closes the barrier in association with the rotation of a cam ring. The barrier opening and closing mechanism includes spring means for biasing the barrier to open the same, an opening and closing pin which can be moved in the radial directions of the lens cover and which closes the barrier against the spring means when the opening and closing pin moves in one radial direction, a closing lever which is located at a predetermined position outside the lens cover and which is biased to rotate to continuously press the opening and closing pin to close the barrier.

Abstract: Accessory items for mounting a percussion instrument (a musical cymbal) relating generally to instrument's hardware and their accessories which are now being adapted through a variety of itemized supports are disclosed herein to include adjustable and/or non-adjustable cymbal support means mounted to (optional) resilient protected adjustable and/or non-adjustable rotatable means journaled to support means which are coupled to hardware fastening means or comprising complete standards extently providing different devices (apparatus) of varying shapes and forms with multiple adjustments to permit cymbal to revolve (after impact) about an axis which may and may not be lying generally parallel to and spaced from a plane defined by the marginal periphery of the cymbal thus to impart a revolution which give viewers (audience) stupendous complex rhythmical sounds along with flashing exiting visual effects of truly unlimited epic proportions.

Abstract: An apparatus for acquiring the dimensions of an object by means of photography, particularly the topography of a human body, includes a still or video camera positioned to take pictures of the person is improved by a projector having a different orientation and projecting a line raster in a diverging beam; and a mirror intercepts the projection beam and provides a parallel beam wherein the horizontal line rasters as projected remain equidistant with no diverging direction; the mirror is preferably made of multiple strips but could be just a concave reflection.

Abstract: A counter-tensioning mechanism for use with a tremolo device attached to a guitar or similar stringed musical instrument includes a moveable spring anchor for attachment to the ends of springs attached at their other ends to the string anchor of the device. Movement of the spring anchor in one direction or the other to increase or decrease the spring forces applied to the string anchor is effected by two parallel counter-rotating threaded shafts threadably engaging the spring anchor and driven in unison by two gears fixed to the shafts and drivingly connected with a manually rotatable third gear rotatable about a third axis preferably perpendicular to the plane of the first and second axes.

Abstract: The invention relates to a microphotographic apparatus which superimposes one set of film format markings on an image recorded by a film type held by a camera attachment. Specifically, the apparatus has two opaque carriers with multiple sets of transparent markings. These carriers can be moved relative to one another such that only one set of markings on the first carrier is aligned with a corresponding set of markings on the second carrier and therefore, when light is projected through the carriers only one set of markings is superimposed on the recorded image.

Abstract: A focusing screen includes a regular array of a plurality of unit regions on an optically transparent substrate, and an irregular array of a plurality of minute patterns of at least two different sizes in convex or concave form on a surface of the substrate.

Abstract: A fingerboard for plucked and stringed instruments comprises transversely extending frets for altering the pitch of strings which are tightened over the length of the fingerboard. The frets are divided up in the region in which the individual strings are tightened across them into fret elements which are adjustable in the longitudinal direction of the strings on the fingerboard. Structural sections in which the fret elements are individually displaceable over a large area are inserted in the fingerboard so as to extend continuously over substantially the entire length of the fingerboard and parallel to the strings. The fret elements are, furthermore, held by frictional connection in the structural sections in such a way that they are infinitely displaceable only by intentional, external force acting in the longitudinal direction of the structural sections.

Abstract: A flash device in which a mechanism for shifting a light emitting section up and down and a mechanism for changing over the light distribution angle can be automatically controlled by means of a single motor and which occupies a comparatively small spacing when mounted on a camera. The flash device includes a bidirectional drive motor mounted in a body member, and a shiftable member having the light emitting section thereon. The shiftable member is shifted by rotation of the motor in either direction between a retracted inoperative position and a projected operative position. The light distribution angle of the light emitting section is changed over by continued energization of the motor after the shiftable member is moved from the inoperative to the operative position. A friction mechanism is interposed in a motion transmitting mechanism from the motor to the shiftable member.