Abstract: An image recording apparatus for recording an image corresponding to an original on a photosensitive recording medium by irradiating light onto the original and converging light from the original onto the photosensitive recording medium. The apparatus includes a lens unit vertically movably supported by the frame, a plurality of position setting holes arrayed in a vertical direction of the frame, position setting means provided on the lens unit and capable of being inserted into one of the position setting holes for fixing the lens unit to the frame, urging means provided on the lens unit for urging the position setting means toward the frame to project the position setting means, actuating means provided on the lens unit for actuating the position setting means so that the position setting means retracts and moves away from the frame against urging force of the urging means when electric current is supplied to the actuating means.

Abstract: A reticle for use in a wafer stepper of the type in which a lens projects the image of a mask to create a lithographically-defined pattern on a wafer. The reticle includes a plurality of parallel, opaque rectangles formed therein. The rectangles are uniform in size with the width of each rectangle bearing a ratio to the distance between adjacent rectangles of approximately 4:1.

Abstract: A device for indicating a remaining quantity of the recordable portion of a recording material, such as a magnetic disk or film. The indicating device comprises a counting device which counts a remaining recordable quantity of recording material, and a warning device which outputs a warning when the reamining recordable quantity is low. The warning device is provided with an acoustic alarm device for outputting a vocal or electronic sound corresponding to the remaining quantity or an optical alarm device for outputting light indicating the value of the remaining recordable portions, or corresponding to the remaining quantity. The optical alarm mechanism is provided in such a manner that the warning light can be observed in the viewfinder of the camera.

Abstract: A speaker system includes at least one horn-type speaker. The horn-type speaker is provided with an acoustic waveguide between the driver and horn to space the driver a selected distance from the mouth of the horn.

Abstract: This disclosure has been directed to those parts of hand tools utilized in gripping and manipulating the tool, most frequently and generically: the handle. The handles are fabricated of water resistant materials, provided with ergonomic enhancing curves, equipped with stress resistant inserts, and made multifunctional to increase their usefulness and productive efficiency.

Abstract: An ear plug assembly (28) for behind the ear hearing aids. The ear plug assembly (28) comprises a hollow substantially conical shell (32) having two annular ridges (42, 44) in its smaller open end (34). A hollow tube (26) connects the electronics package (20) to the smaller end (34) of the shell (32) and conveys the sound into the ear canal. One end of the tube (26) has a fitting or endpiece (50) in it with a flange (52) that is seated between the ridges thus securing the tube (26) in the shell. A slidable nut (38) and a spring (40) are mounted on the tube (26) such that the nut can be slid toward the endpiece (50) thus compressing the spring (40) and providing rigidity. The compressed spring (40) transmits a force applied to the nut (38) to act upon the endpiece (50) and the ridge (44) of the shell (32). This force tends to stretch the shell (32), reducing its diameter so that easier and deeper insertion into the ear canal can be achieved.

Abstract: Active acoustic attenuation apparatus is provided for cancellation of noise from an exhaust pipe (12). A chamber (50) has an input (70) receiving exhaust from the exhaust pipe and directing the exhaust along a flowpath (76) to a chamber output (74). Speakers (88, 90) are transversely spaced and offset from the flowpath and introduce sound into the chamber at a space (56) having a transverse area at least as large as each speaker, to minimize acoustic loading of the speakers and to protect the speakers from the heat of hot exhaust for automotive applications, including electronic mufflers.

Abstract: In accordance with the present invention, a disposable camera is provided. The disposable camera preferably includes a disposable camera housing and an elongated attachment member detachably attached to the camera housing. When the camera's user is threatened by another individual, the user can use the camera to deter any criminal acts contemplated by the other individual by recording an image of the individual and propelling the camera away from the vicinity. Preferably, the housing is generally spherical in shape and includes a shock-resistant outer layer which minimizes the damage to the housing when the housing is propelled away from a user. The elongated attachment member preferably is configured as a key chain or other attachment member for attachment to personal items such as keys, wallets, purses, handbags, belts, buttons, personal clothing, book bags, carryalls, nap sacks and the like.

Abstract: A drumstick of the character used in an orchestra or band having an elongated hollow body partially filled with a number of small sound pellets to which various types of tips can be interconnected. The body portion of the drumstick is preferably constructed from a polycarbonate plastic tubing or like material so that movement and vibration of the drumstick will cause the pellets to rattle within the hollow body in a manner to produce a wide variety of rhythmic sounds. An infinite number of sounds can be produced by varying the angle at which the drumstick is held and by varying the number and character of the pellets contained within the hollow housing.

Abstract: A string tension adjusting mechanism for a steel guitar. The adjusting mechanism consists of three basic parts, a bridge member, over which a guitar string is mounted and to which tension is applied to a desired pitch. A raising lever member, actuated by a pull rod, turns the pivotably-mounted bridge member clockwise to increase the tension and incease the pitch. A lowering lever member, again actuated by a pull rod, causes the bridge member to pivot in a counterclockwise direction, thus relieving the tension on the string and lowering the pitch. One of the lever members is attached to the bridge member, while both of the lever members are pivoted together. One of the lever members contains a large hole and a spacing device is mounted therein, at the point of pivot, to maintain a free space between the two lever members and between the lever member and the bridge.

Abstract: A bullet-shaped molded foam earplug is provided with a cavity extending from the flanged base axially into the earplug. The cavity provides the earplug a lower equilibrium pressure making the earplug more comfortable. The earplug is formed in a mold having a base containing a plurality of spaced apart cavities. A top plate having a plurality of pins is fitted onto the base such that the pins enter the mold and define the cavity of each earplug.

Abstract: The invention relates to a device for the transfer of string vibrations to the outer walls of a hollow body. The strings are stretched over a bridge in the conventional manner and the bridge transfers the movements to a mobile wall of the hollow body. This narrow wall with a relatively small surface does not mainly vibrate the surrounding air and instead transfers via supports the string vibrations to two large-area hollow body walls positioned below it. The bearing points of the bridge on the hollow body narrow wall, the hollow body walls and the supports are arranged in such a way that in the case of a bridge vibrating movement direction following the string vibrations, the large surfaces of the hollow body are moved in opposite directions.

Abstract: The subject action is a modification of the traditional upright action. The traditional jack spring is eliminated. Its function is assumed by a jack/repetition spring, which is a compression spring adjustably mounted between the jack near the end that engages the hammer butt and a pilot attached to a threaded shaft through the back stop portion of the hammer assembly. The hammer return spring mounting enables adjustment of the range of force applied by the spring to the hammer. The force range magnitude is such that the hammer return torque is commensurate to the torque that would be applied by gravity if the hammer shank were mounted horizontally instead of vertically. The operating force of the jack/repetition spring is related to that of the hammer return spring in such a way that re-engagement of the jack with the hammer butt is assured before hammer return beyond the back-checked point.

Abstract: An image forming apparatus for forming visible images on a recording medium according to source image information, comprises microcapsules, a stirring roller, a photosensitive drum, a microcapsules coating device, a corotron, an exposing device, a heater and a developing device. Each of the microcapsules includes a chromogenic material and a material having a heat-softening property wherein it is softened by heat and a photocuring property wherein it is cured by light. The stirring roller frictionally charges the microcapsules. The photosensitive drum has an electrically chargeable drum surface, the drum surface permits electrostatic latent image to be formed therein according to the source image information. The microcapsules coating device coates the charged microcapsules onto the drum surface of the photosensitive drum according to the electrostatic latent images. The corotron transfer the microcapsules from the drum surface of the photosensitive drum to the recording medium.

Abstract: A cam mechanism in a zoom lens having a stationary barrel secured to a camera body, a cam ring rotatably fitted in the stationary barrel, a front lens group frame movable in the optical axis direction in the cam ring, a front lens group integrally supported by the front lens group frame, and a rear lens group supported in the cam ring so as to move in the optical axis direction. The cam ring is provided with front lens group cam grooves and rear lens group cam grooves, so that when the cam ring rotates, the front lens group and the rear lens group are moved in the optical axis direction. The number of the front lens group cam grooves is larger than that of the rear lens group cam grooves.

Abstract: A photographic printer for making a trimming print has a zoom lens whose focal length can be changed in accordance with a trimming magnification. Exposure time is corrected based on a reciprocity law failure correction amount corresponding to the magnification of the zoom lens, whereby a density of the photoprint is corrected as to a change in a reciprocity law failure. According to a preferred embodiment, test prints are made respectively at a plurality of magnifications of the zoom lens. The densities of the finished test print are measured to form reciprocity law failure correction data automatically in the photographic printer so that the measured densities coincide with standard densities.

Abstract: The photoelectric scanner is equipped with two circular disks having aligned light passage orifices and mounted on a common drive shaft. Lenses are located in these orifices, the focal points of which are in the plane of the copy master to be scanned. The beam emitted by the source of copying light and parallelized by the condenser arrives through the curved slot of a stationary diaphragm on the lens instantaneously moving through the area of the slot and is focused in the plane of the copy master. From the lens synchronously running on the other side of the copy master, the parallelized beam of light arrives through the curved slot of a subsequent stationary diaphragm and a condenser on a receiving and detection unit with dichroitic mirrors, absorption filters and photoelectric detectors. These detectors convert the optical signals into electric signals, which are conducted to the evaluating electronic device.

Abstract: A camera having a main body, a front cover, a rear cover, and a lug. The main body has a light blocking tube, a film cartridge chamber and a spool chamber in which the light blocking tube blocks light other than that entering through a lens from reaching a film. The film cartridge chamber is defined at a side of the light blocking tube so that a film cartridge is housed therein. The spool chamber is defined at the other side of the light blocking tube so that a spool for winding the film is housed inside the spool chamber. The lug projects rearward, and has a bent portion bending outward from a main portion toward a side of the camera, and is formed on the main body of the camera integrally thereto along the film cartridge chamber. The lug presses the film cartridge to keep the film cartridge in proper position, thereby to ensure the automatic feeding of the film.

Abstract: A speaker system installable in a narrow space and capable of efficiently reproducing sounds of frequencies of up to about 45 Hz. The system comprises a speaker, and a speaker cabinet having a first chamber enclosing the rear side of the speaker and a second chamber enclosing the front side of the speaker. The first chamber is provided with at least one duct communicating at its forward end with a port portion in the cabinet. The second chamber has an aperture or apertures which are 0.02 to 0.25 in opening degree, i.e., in the ratio of the combined opening area of the aperture to the inside volume of the second chamber.

Abstract: An exhaust pipe shield for motorcycles or the like comprises curved shield member having a generally constant radius greater than that of a cylindrically shaped exhaust pipe. A plurality of spacer blocks are interposed between the shield inner surface and the outer surface of the exhaust pipe. The spacer blocks are secured to the shield. A clamping mechanism is coupled to the spacer blocks for securing the shield to the exhaust pipe.