Abstract: An acoustical partition for use in home, office and industrial environments includes a generally rectangular, rigid, hollow frame whose interior opening is filled with an acoustical core wherein the outer planar surfaces of the frame and core are covered with further insulation material and a fabric outer layer. The interior acoustical core is configured with an alternating sequence of insulation material strips wherein the alternating strips of insulation material may either be different materials of the same density, the same material with different densities, different materials and different densities and with all of the foregoing may be either the same or different thicknesses.

Abstract: A instant camera of the type which receives film assemblages having stacked film units of the self-developing type. The camera is provided with a pair of spread rollers which engage an exposed film unit to spread a processing liquid between layers of the film unit while simultaneously moving it into a storage chamber having a viewing window. An opaque shade for the window is located adjacent the exit side of the spread rollers. The shade is adapted to be moved into covering relationship to the window and/or the exposed film unit for a predetermined period of time after it exits from the bite of a pair of spread rollers and then returned to its noncovering position. This time is sufficient to allow a treated portion of the film unit to remain in the dark unit its length reaches a predetermined value.

Abstract: A headphone device includes a pair of housings each attached to a hanger and supporting a loudspeaker unit, and a headband having opposite ends to which the hangers are secured. Each housing includes a front plate to which the loudspeaker unit is attached and a main body portion preferably constructed of natural wood and enclosing the loudspeaker unit with the exception of a front surface of the loudspeaker unit. The inner surface of the main body portion of the housing includes a plurality of irregularities which prevent the generation of standing waves and scatter the housing resonant locations so as to maintain a high quality of reproduced sound.

Abstract: An exhaust outlet conduit for internal combustion engines and adapted to function as a resonator for exhaust waves exiting from the cylinder or cylinders to which the conduit is connected. The conduit (4) is characterized by a combination of features, according to which the conduit exhibits an exhaust throughflow area which increases outwardly from the end of the conduit connected to the cylinder (1), and the conduit wall has provided therein one or more openings (5). The openings are so configured that the total opening area increases along the conduit in a direction away from the cylinder (1), so as to increase the frequency range over which the conduit (4) will function as a resonator.

Abstract: An air intake noise suppressor for a snowmobile engine disposed on the intake side of a carburetor has an enclosure with a front face having apertures therein connected to the carburetor and a rear face canted relative to the front face. The rear face has an integrally formed frustoconical extension for permitting air to flow into the enclosure. The frustoconical extension extends into the enclosure and the enclosure has a irregular bottom wall providing additional reflective surfaces inside the enclosure. Sound emanating from the carburetor enters the enclosure through the apertures and is reflected and entrapped therein unit it is attenuated. The small amount of sound that may escape the enclosure through the frustoconical extension is either attenuated in a juxtaposed enclosure formed by a shroud or directed through louvers down and away to either side of the driver.

Abstract: A completely self contained photographic vending unit included within a weatherized containment automatically takes photographs of users in response to user inputs. The photographs are taken on a self-developing film supplied in cartridges. A film loading mechanism supplies and positions fresh cartridges into a camera body by conveying the fresh film cartridge from a storage unit to the camera location and then elevating the film cartridge into the camera through the bottom of the camera. The camera is aimed by tilting the entire camera assembly including the camera and film delivery mechanism as an integral unit. Frames or cards are selectively dispensed from one of a plurality of dispensing units through a delivery chute to be combined with the photograph to provide a personalized and customized greeting card, postcard or framed photograph. The entire vending unit operates automatically and unattended and may be used in an exterior location without an enclosing photographic booth.

Abstract: An acoustic filter in which the internal flow element is acoustically decoupled from the surrounding vessel to lower noise emanating from the filter by securing the filter bulkheads to the internal flow element rather than welding to the vessel wall. The connection of the bulkhead to the vessel is mechanically discontinuous and reduced vibration transmission to the vessel from the internal flow element is obtained. The internal flow element is a unitary body with channels which are readily formed. The filter vessel is better able to move relative to the bulkheads in response to pressure and temperature changes with the invention design.

Abstract: A shutter-plate operating means for a camera is arranged for sliding and pivotal movement within a shutter housing and is spring-biased out of a cocked position, said operating means and a shutter plate being provided with interengageable cam surfaces, such that upon sliding movement of the operating means into a cocked position the cam surfaces will co-operate to cause the operating means to pivot to allow it to pass beyond the cam surface of the shutter plate, and such that upon release of the operating means from its cocked position, interengagement of the cam surfaces will cause the shutter plate momentarily to open a shutter aperture. Preferably the shutter plate operating means comprises a single, integrally formed shutter plate operating element which is generally planar, is arranged for sliding movement within the housing and includes the cam surface for operating the shutter plate, said cam surface being mounted on a resilient integral extension of said shutter plate operating element.

Abstract: Supporting machine parts (cheeks) and movable machine parts, especially levers of a machine are provided with interspaces and/or cavities (pores) for proofing against or the damping of sound vibrations or sound-generating vibrations, the interspaces and/or cavities being filled with a sound-proofing or sound-damping material.

Abstract: A magnetic head is mounted on a camera film platen which is supported for constrained movement relative to the camera body to maintain a precise relationship between an information track recorded on the film and a film edge. The magnetic head is pivotally mounted on the film platen. Means are provided to establish one angular orientation of the head to establish one angular orientation of the head with respect to the film during prewind to read information recorded by the film manufacturer and a second different angular orientation during transport of the film in the opposite direction during film exposure to record information relating to film exposure. This enables a camera to distinguish between information recorded by the manufacturer and information recorded by a camera to determine if mid-roll interrupt occurred and, if so, the location of the last frame exposed.

Abstract: A silencer having multiple integrated channels arranged in a labyrinth configuration is provided. The channels have one open end and one closed end with the open end in communication with a common zone which is connected to a flow duct. The channels are tuned to provide a selected resonance frequency.

Abstract: An enclosed integrated automatic photographic studio in which the subject may pose in complete privacy for portrait quality prints. A camera located behind a one-way mirror is activated by the subject. The studio is dimensioned and illuminated to produce portrait quality photographs using a single camera focus setting and shutter speed regardless of the subject's normal location in the studio.

Abstract: This invention provides a low-cost printer for use by businesses and individuals to print a ten digit Postnet barcode on an envelope at the time of mailing so as to improve the routing and delivery time thereof. There are input keys or dials for a user to manually input digits comprising a ZIP+4 Code of an addressee. There is also calculator logic for calculating a tenth digit representing a check value associated with the digits of the ZIP+4 Code and a printer for printing a sequence of Postnet barcode characters corresponding to respective ones of the digits of the ZIP+4 Code and the tenth digit comprising the ten digit Postnet barcode. In a manuel version, the calculator logic is separate from manual input and printing apparatus. A user uses the calculator logic to calculate the tenth digit and then inputs it manually for printing. In a powered version, the calculator logic is included with the logic which drives a mechanical printhead such as an inkjet or dot matrix printer.

Abstract: An exhaust gas muffler has a housing composed of upper and lower press-formed parts with two chambers and a gas passage means composed of upper and lower plates with three parallel press-formed troughs defining a tri-flow gas path wherein one of said chambers serves as a turn-around from the gas path and the other of said chambers receives said troughs and is acoustically connected to the gas path through perforations in the walls of the troughs.

Abstract: A panning head for a photographic tripod or the like has a base and a panning body rotatable about a pan axis. A pivot shaft on the base extends into a cavity in the panning body, and a transverse forked retaining wedge captures the shaft to keep the base and panning body together, and includes an exteriorly accessible screw setting for adjusting the degree of friction between the two and consequently the effort required to turn the panning body on the base.

Abstract: A camera of the kind arranged to wind a film onto a spool in the reverse winding direction comprises a spool for taking up the film in the reverse winding direction, a guide roller, and a position changing member for changing a position of the spool to cause the film to be inserted and pinched between the spool and the guide roller so that the film is advanced by a driving force of the spool.

Abstract: A film package has a flexible light-shielding bag with a stack of sheet films stored therein, the flexible light-shielding bag having at least opposite ends sealed in a direction in which the flexible light-shielding bag can be pulled out, said opposite ends being folded back on one surface and joined together by a seal. The film package is placed in a holder which can be inserted into and removed from a main body of a film loading device.

Abstract: A camera has a rotary operation member, a detection unit, a photographing data setting circuit, and a pulse signal generation unit. The rotary operation member is exposed from a plurality of portions of the camera to be able to be operated from a plurality of directions. The detection unit detects a rotation of the operation member from a predetermined portion and generates a detection signal. The pulse signal generation unit generates a pulse signal in accordance with rotation of the rotary operation member. The photographing data setting circuit sets predetermined photographing data in accordance with the detection output from the detection unit on the basis of the pulse output from the pulse signal generation unit, thus setting and storing a plurality of photographing data.

Abstract: In a camera, a data imprinting device for putting additonal data on a film plane together with optical image data obtained through a photographic lens is provided between the film plane and a back cover of the camera. A data back, which comprising a back cover of a camera and a data imprinting device attached thereto, comprises light emitting device such as LED arranged to be movable in parallel with the film plane emitting light to imprint the additoinal data on the film plane. A guide plate is provided for locating the light emitting device at a desired position in a predetermined area and a pressure plate is provided for holding the film plate at a predetermined position, the pressure plate being formed such that at least the portion thereof corresponding to the movement range of said light emitting device is transparent.

Abstract: An electronic flash comprises a housing provided with a light flash projecting window and incorporating a flash lamp assembly with its associated control circuit including a capacitor therein and an external casing enclosing the housing. The casing has at least an opening or part defined by and torn off along a perforated line to form an opening for exposing the light flash projecting window. The electonic flash with or without the external casing can be attached to a disposable lens-fitted film unit with a simple exposure member. The external casing is provided with an opening or part defined by and torn off along a perforated line to form an opening, or a flexible part defined by an incised line, for allowing a charge switch to be depressed from outside the external casing so as to charge the capacitor.