Abstract: An electronic shutter mechanism for a still camera comprises a shutter blade, preferably carrying a solenoid armature, urged by a first spring into an initial lens aperture closing position. An initially latched actuating member for moving the shutter blade to a lens aperture exposing position carries a normally energized solenoid coil to attract the shutter blade carried armature thereto so that the shutter blade moves with the actuating member until the coil is deenergized. When the actuating member is unlatched, a second spring urges the actuating member and the shutter blade magnetically attached thereto into a lens aperture opening position against the return force of the first spring. Upon the unlatching of the actuating member a timing circuit establishes a timing period depending upon the amount of ambient light, after which the solenoid coil is deenergized so the first spring returns the shutter blade quickly to a lens aperture closing position.

Abstract: A sealed electrical device like a relay includes a support base, a relay device on the inner side of the support base through which extends longitudinally-exposed terminals for feeding current to the relay device, and a housing having a relay-enclosing portion, and a stepped intermediate portion forming a continuation of the device-enclosing portion and making a face-to-face sealing engagement with longitudinally and laterally outwardly facing surfaces on the support base so that there is no straight-on access of a water stream external to said housing into the interior thereof on the inner side of the support base from either a lateral or longitudinal direction. The intermediate housing portion terminates in a sealing skirt-forming end portion extending a substantial distance longitudinally beyond the sealed portion of the support base to act as a further barrier against the ingress of an external water stream into the interior of said housing on the inner side of said support base.

Abstract: The previously unknown cause of significant non-linear distortion by non-linear discrete and stray capacitances located in portions of an amplifier circuit where Miller effect enhancement of such capacitance occurs is minimized by one or more means, such as utilizing unique discrete capacitor arrangements and positioning of transistor terminal leads, and unique printed circuit board constructions and selectively applied solder mask coatings which minimize or eliminate non-linear stray capacitance effects which were not heretofore considered to be a problem in audio amplifier circuits. Non-linearities in capacitance-voltage characteristics are reduced by the reduction in voltage gradients achieved by connecting two or more capacitors in series to produce the overall desired capacitor value heretofore supplied by only a single capacitor.

Abstract: There is combined with a hand pushable seeder of a type with a pair of wheels and an adjustable furrow-forming ground opener means disposed to traverse only a single common dispensing track aligned therewith a side dressing fertilizer dispenser with its own fertilizer-receiving hopper attached upon the frame of the seeder so that a fertilizer dispensing chute of the hopper is disposed to dispense the fertilizer behind the ground opener and along the single common track traversed by the wheels propelled alongside can thus dispense fertilizer alongside young growing plants germinating from seeds dispensed by the same seeder many weeks before.

Abstract: In a booklet-making system including a collating conveyor having an inverted V-shaped top profile for receiving folded signatures to be draped thereover, a signature raising plate is provided in the path of movement of the signature to and past an ink jet printing station for raising preferably only one side or panel of the conveyor draped signature to be printed upon and the fold thereof above the conveyor so that the signature is not then supported by the conveyor. Signature backing and aligning apparatus is provided opposite the printing station for receiving the fold of the raised signature or stack of signatures and for acting as a backing support therefor to stabilize and align the same as it moves past said printing station. In one form of the invention this apparatus includes the longitudinal edge of the signature raising plate which engages and forces the raised fold toward a backing wall.

Abstract: A link mechanism in a pushbutton-operated waveband or station selector in which a link with a plurality of arms is pivotably fitted on a pivotal shaft; in order to couple to these link arms members which move in different directions, each of the members being provided with a guide means extending perpendicular to the moving direction of the member, a guide member provided at each of said arms of the link being slidably engaged with the guide means; the angle formed between each of the link arm and the moving direction of each member coupled with the arm being so set to always be greater or smaller than a right angle within the moving range of each member that no point of inflection will occurs in the moving orbit of the guide member of each arm within the guide means of each member.

Abstract: Apparatus and methods for assembling a thermally-actuated cut-off link having a casing, a closure, split along its length to form a slot, a power lead, one end of which extends from the casing through a neutral passage formed in the closure, the other end of which terminates in a pair of outwardly deformed, inwardly deformable contact arms forced into low-resistance contact with an inner conductive surface of the casing, a fusible pellet, and a spring-biased arm-deforming member which, responsive to deform the contact arms away from the inner conductive surface to interrupt the flow of current through the cut-off link. The closure is secured to the casing by crimping the casing to grippingly contact the power lead and to narrow the slot. Relatively viscous sealant, placed in an enlarged section of the closure passage is drawn into the narrowed slot by capillary action, and is thereafter cured.

Abstract: An address check system which comprises receiving stations each receiving address information and control information transmitted by a transmitting station and take the control information in when the address coincides with the own address and further has a means for detecting changes in its own address.

Abstract: A tape player for vehicles which comprises a tape player set having cushion members on its top and bottom surfaces as well as an operation board on its front face, an inner case covering the tape player set, and an outer case receiving the tape player set and the inner case, and in which the cushion members and the inner case are fixed to the outer case and the operation board, respectively, in a manner permitting disassembly of them, so that the tape player set, the inner case and the outer case are incorporated and can be easily disassembled.

Abstract: A fuse puller device comprises a pair of spaced confronting body portions respectively having confronting lower fuse-gripping jaw sections each formed by a wall terminating in a horizontally inwardly facing lip-forming projection adapted to underlie the overhung portion of a fuse housing head portion, the jaw sections respectively joining confronting finger-squeezable sections which effect a pivoting separation of the jaw sections when squeezed between the user's thumb and forefinger. The lip-forming projections have recesses which engage ribs on the fuse housing to center the fuse puller device. A fuse condition indicator unit mounted on the inner face of one of the jaw section walls has a pair of indicator terminals adapted to engage fuse continuity test terminals exposed on the head portion of the fuse housing to test whether or not there is continuity between the test terminals when the fuse puller device is applied over the head portion of the fuse.

Abstract: A configurable common terminal bus allows optional engagement of a preselected group of fuse terminals in a fuse holder array. One version of the bus permits substantial rotation of engaged rotatable fuse clip terminals. A breakaway array of fuse holders in conjunction with such a bus facilitates manufacture of fuse blocks with customized terminal groupings. The bus may be replaced after manufacture by one of different configuration to alter the common terminal grouping. The bus may be positioned to occupy a position below that occupied by the inserted fuses so as to be substantially shielded by the insulated portions of the fuse bodies from accidental contact with external objects.

Abstract: A coupler comprising a female coupling member and a male coupling member adapted to be fitted therein for coupling air conduits of two systems, i.e., an air pressure supply system and a control system thereof, wherein the coupling members have openings of a first and a second air conduit, respectively, at respective central portions of the mating faces and annular grooves concentric with and outer than the respective openings; third and fourth air conduits open at the respective grooves; the openings of the first and the second air conduit are connected with each other; an o-ring is disposed at the connecting portion between sidewalls of the respective openings; the annular grooves of the respective coupling members are engaged with each other; a second o-ring is disposed at the engaging portion of outer walls of the respective grooves; and the engaging portion of the inner walls of the grooves are air-tightly sealed by the first o-ring.

Abstract: A camera is provided with flash lamp means, preferably a single flash lamp, useful for both range-determining purposes, for automatic focus control and/or flash lamp light exposure control, and in response to depression of the shutter release control, generates an initial range-determining flash of light and then a film exposure flash of light if flash exposure is desired. Before the shutter is opened, the range-determining flash of light reflected from the object involved is detected by a light sensor feeding the inputs of one or more signal level detectors respectively responsive to different peak levels of the reflected flash lamp light profiles indicating object distances falling within different adjacent range zones by being triggered into a given state. In the automatic focus control form of the invention, the outputs of the signal level detectors are scanned sequentially in the order where the signal level detectors responsive to profiles of objects in the nearest range zone are scanned first.

Abstract: In a refrigeration system comprising a compressor, an oil separator, a condenser, an expansion valve, an evaporator, etc., a groove for oil separation is provided along inner wall of a refrigerant gas supply pipe which connects the oil separator and the compressor, and an oil reservoir is provided at the bottom of the oil separator.

Abstract: An surface acoustic wave device, especially amplifier which includes input and output means for electrical signals provided so as to be spaced on a surface of a piezoelectric material which comprises a laminate in combination with a semiconductor, and an electrode provided in a surface signal wave propagation path between said input and output means for supplying pumping power.

Abstract: Method of manufacturing a semiconductive device which comprises: positioning plural semiconductive chips on a film so that one surfaces of the chips form a flat plane; connecting the semiconductive chips with insulative member to make one conjoined body; thereafter removing the film from the conjoined body; securing the conjoined body on a wiring board and forming metallic wires which connect the wiring board and the semiconductive chips in a manner that the wires be closely fit to the flat plane of the conjoined body.

Abstract: A thin layer depositing apparatus comprising a reaction vessel for putting therein substrates to be provided with a desired thin layer and a gas accelerating nozzle positioned at a desired portion of the reaction vessel so that reactive gas is introduced in the reaction vessel through the gas accelerating nozzle.

Abstract: In a tape reproducing apparatus combined with a radio set having a tape reproducing circuit, a radio reception circuit and a loudspeaker, an apparatus capable of connecting a headphone to one of the tape reproducing circuit and the radio reception circuit when the other circuit is connected to the loudspeaker.

Abstract: A crank mechanism in a pushbutton tuner is characterized in that a crank gear and a backlash preventing gear, both mounted on one associated end of crank bars of the pushbutton tuner, are formed with stepped-down portions so that teeth formed on them are positioned inward of the crank bars with respect to the base portions of the gears.

Abstract: An electronic timing circuit to be used in conjunction with photographic cameras using electronic exposure sensing and electrically actuated signal lights responsive to the exposure sensing causes automatic total electrical power shutdown if the camera is left unattended. No separate manual operation is necessary, the shutdown occurring within approximately half a minute after releasing the exposure button. Rundown of the camera battery via inadvertent failure of the operator to turn off the system is eliminated. The timer is turned on and system loads are connected in a latched state to the camera battery by partial depression of the exposure button. Adequate ambient illumination of the subject scene causes a photosensor to actuate a green signal light. Inadequate ambient illumination causes the photosensor to automatically actuate instead a red warning light and a flash tube charging circuit for a built-in flash tube, full charge being evidenced by reappearance of the green light.