Abstract: An apparatus by which both tremolo action and string clamping and string intonation adjustment are achieved effectively and in a very small space. Adjustment screw shanks are threaded into bores in the inertia bar or block of the tremolo, and bear against the heads of pull screws that are connected to string-clamping saddles. The heads of the pull screws are received in recesses in the inertia bar; the inertia bar is connected to the bridge plate by several screws that do not interfere with the screw shanks. To adjust intonation, the bridge plate is pivoted upwardly and a wrench is employed to rotate the screw shanks, which in turn bear against the heads of the pull screws. Furthermore, the pull screws are rotated to release positions while the bridge plate is in its upwardly-pivoted position. After intonation is adjusted, the pull screws are rotated to lock the saddles in their desired positions.

Abstract: In construction of a supporting mechanism for mounting a tubular tone generator to a stand of a percussive musical instrument, a holder shaft insertable into the sound generator is provided at its lower end with a pivotal lock bar of a biased mass distribution and a slidable coupled stopper to hold the lock bar at a prescribed angular position. When inserted into the sound generator, the lock bar turns automatically to assume the proscribed angular position due to the biased mass distribution and locks the holder shaft to the tone generator. Absence of the conventional tension wire binding system allows free choice in sound characteristics, simplified easy mounting operation and high mechanical durability even under vibratory conditions during performance.

Abstract: An improved bridge for a stringed musical instrument having a sound board. The bridge includes an elongated body portion having first and second ends. An adjustable foot is located at each end of the body portion and has a heel and a toe portion for contact with the sound board of the instrument. The bridge further includes means for selectively biasing each of the adjustable feet, whereby the contact between the sound board and the adjustable foot may be varied between the heel and toe portion of each of the feet.

Abstract: A camera having a finder, capable of photographing a first size and a second size, comprises a field frame for the first size, which is provided in front of an eye piece of said finder, and a field frame plate for the second size, which is provided in a manner to be movable between an objective lens and the eye piece of said finder and is formed with display portions for displaying portions other than a field frame and shielding portions. A field frame plate change-over mechanism retracts the field frame plate for the second size out of the optical path of the finder during the photographing of the first size, and disposes the field frame for the second size in the optical path of the finder between the objective lens and the eye piece during the photographing of the second size. This field frame plate shields the field frame for the first size by shielding portions of the field frame plate for the second size.

Abstract: A method of making stereoscopic images comprises a first step of exposing a color negative film in a stereoscopic camera to produce a film strip having a plurality of stereo image pairs thereon and then a second step of printing the stereo image pairs onto a color transparency material in a circular pattern. The method may further include the step of punching a disk out of the color transparency material with the stereo image pairs arranged around the circumference of the disk.

Abstract: A musical drum which has a drum shell constructed of wood, fiber composite structures using wood, paper, (Fiberglass) glass fibers and products made therefrom, and other fibers, plastics and the like, and other materials. At least one end of the shell which is to receive a drumhead has mounted and secured thereon a molded bearing edge fashioned from a resinous or some other suitable material, which preferable is substantially in the shape of an inverted "V," although several alternative shapes are disclosed. The molded bearing edge provides a considerable increase in the strength of the drum, provides desirable sound characteristics, and provides a flat, level and uniform plane with a consistent, structural integrity over which the drumhead is mounted and tensioned.

Abstract: The present invention consists of an upper support structure including a wind vane which moves the wind chime according to the direction of the wind and a multiplicity of metallic rings mounted by string-like members to the upper holding support structure, which rings are driven by the force of the wind. The combination of either changing wind direction or velocity causes the rings to hit each other which produces an unexpectedly loud and melodic sound.

Abstract: A drumstick, such as a conventional solid wooden drumstick has a plastic conformal cap affixed over the striking tip of the drumstick. The cap is provided with a shallow circumferential groove and a hard, rigid impact ring affixed within the groove, the surface of the ring extending above the surface of the cap so that the ring impacts the precussion instrument used with the drumstick.

Abstract: An improved tremolo device for a stringed musical instrument provides a fixed plate attached to the body portion, a fixed gear rack with teeth, and a movable plate that is slideable with respect to the fixed plate and has a bridge member. A pinion gear having teeth around the circumference thereof is provided to mesh with the teeth of the fixed gear rack and to move in unison with the movable plate. A lever is attached to the pinion gear for rotating the pinion gear to change the tension on the strings. The fixed plate has a slot or groove in the face thereof opposite the body, and the movable plate has a slot or groove in the face thereof opposite the fixed plate to form one or more cavities in which anti-friction bearings are encased. In the operation of the tremolo device of the invention, tension in the strings is decreased by depressing the lever which causes pinion gear to rotate, thereby driving the movable plate to cause the tremolo effect when the musical instrument is played.

Abstract: A duplexing image forming device which selectively directs printed pages back onto the original paper supply, flipped over with respect to the page's original position and swapping the leading edge for the trailing edge, for printing on a second side. The formatter in the image forming device then instructs the printer engine to print the second side of the page and reverses the order of data supplied to the print engine. A paper diverter is installed at the output of the fuser mechanism in the print engine. The diverter selectively diverts paper from the standard output path into a vertical gravity reversing slot through three reversing rollers. The paper is fed from the diverter up through the nip between the single driven reversing roller and an idler reversing roller. The driven reversing roller pushes the paper up into the vertical gravity reversing slot.

Abstract: A motion generation mechanism particularly adapted for use in a music box is mounted in connection to the driving spring of a music box so as to permit the motion generation mechanism to actuate the head and limbs of a doll-like object to motion in tune with the music played by the music box. The motion generation mechanism is equipped with a first swing wire and follower arm wherein the follower arm is actuated by the swing wire to produce a swinging motion and a driving shaft associated with the follower arm is accordingly twisted back and forth. In the meanwhile, the second, third and fourth sets of swing wires and follower arms are driven by the back and forth twisted driving shaft to produce repetitive swing motions, causing the head, limbs of a doll-like object to move or dance in tune with the music.

Abstract: A ceiling-mounted loudspeaker includes upper and lower sound-directing structures having walls acting as a radial horn to provide a wide included angle of coverage for sound energy generated by a loudspeaker driver assembly having a piston for directing generated sound energy upwardly into the horn. The lower structure further has a continuously convex bottom configured and dimensioned to define a diffraction path for at least some of the sound energy exiting the output mouth of the radial horn, so that the convex bottom acts as a downwardly-directed diffractor. The radial horn and convex bottom together produce an oblate spheroid of sound energy affording a substantially uniform amplitude of sound within a large finite horizontal plane at the level of a listener.

Abstract: A system for recording information related to the camera exposure parameters of film image frames in a detachable, disc-shaped, memory module attached to the end of a film cartridge loaded in the camera in non-volatile memory for subsequent read-out. A set of concentric, circular, conductive bands are spaced apart and electrically isolated from one another on the exposed surface of the disc-shaped module housing. An integrated circuit chip, including a non-volatile memory, within the module, has a plurality of input and output terminals connected to the plurality of concentric conductive bands. A camera receives the film cartridge and attached memory module in a cartridge receiving chamber and has a plurality of contact terminals positioned to make electrical contact with the respective plurality of concentric conductive bands.

Abstract: An easily foldable conga stand (S) that takes little space and facilitates the setup of a conga (100).

Abstract: A method and apparatus for reading digital audio signals photographically recorded on a medium (such as motion picture film). If the medium has multiple, spatially separated digital and analog audio soundtracks, a photosensitive detector array is employed for each of the digital audio soundtrack areas, and a separate analog soundtrack read head is employed. Preferably, digital error code is recorded in a digital soundtrack area of the medium (with digital audio bits), and error detection and correction are performed on the recorded digital audio bits read from the medium. Preferably, the apparatus includes switching circuitry for substituting a corresponding analog audio signal for one or more corrupted digital soundtrack channels, when such digital soundtrack channels have an error rate which exceeds a selected threshold.

Abstract: A remote control apparatus of a camera including a remote control signal receiving element and a remote control mode indicating element provided in the camera body, a plurality of indicating windows on the sides of the camera body, and an optical connector for optically connecting the remote control signal receiving element and remote control mode indicating element to the indicating windows.

Abstract: A magnetic recording/reproducing apparatus for recording photographing information and print information on a magnetic recording layer formed on the back surface of a photographic film, and reading film information written in the magnetic recording layer. The magnetic recording/reproducing apparatus includes a magnetic head mounted on a film pressure plate, and a pressure roller for bringing the magnetic recording layer of a photographic film in contact with the magnetic head.

Abstract: A violin bow guide has a rod (38) which is attached to the back of a bow (58). The rod (38) travels through a rod guide (36) which is held in place over the strings of the violin on a support (11) which attaches to the body of the violin. The rod guide (36) is pivotally mounted to permit the bow (58) to play on all the strings. Means are provided for adjusting the height of the rod above the strings, the position of the bow between the bridge and fingerboard of the violin, and the amount of resistance to movement of the rod through the rod guide. The rod guide (36) can be locked at a selected height above the strings or permitted to float freely up and down.

Abstract: A film cassette adapted to be opened and closed comprises a film spool supported for rotation, and a lock for inhibiting rotation of the film spool when the cassette is closed and allowing the film spool to rotate when the cassette is opened. According to the invention, a retainer keeps the lock in place to make it inhibit rotation of the film spool when the cassette is opened, but allows the film spool to be initially forcibly rotated to move the lock out of place to then allow the film spool to be freely rotated. Thus, the film spool must be rotated to discontinue the affect of the lock after the cassette is opened.

Abstract: A central processing unit (CPU) is reset during the removal of a battery or the voltage drop, while, in an electrically erasable/programmable read-only memory (EEPROM), there is stored and held information of the camera operation immediately before the reset and the number of film frames. Then, when the CPU becomes operable by the exchange of batteries and the like, the information of camera operation immediately before the reset and the number of film frames are read out from the EEPROM during the processing at the initial stage thereafter, the operations corresponding to the information of camera operation is continued and the number of film frames thus read out is changed by one and set as the film count value when the information of camera operation indicates one frame delivery. With this arrangement, the interrupted frame delivery is also counted as one frame, so that the final frame is prevented from entering a photographing preventing region of a film.