Abstract: The high current interrupting fuse of the invention includes an envelope free of sand or similar arc quenching material. The envelope preferably has terminal end caps enclosing the ends of the envelope between which caps a fuse element extends. The envelope has an arc-quenching gas-releasing material at least at the inner surface of the envelope. Arc barrier plugs made of an ablative material surround each end of the fuse element which for ease of assembly freely pass through bores of plugs. The fuse element also preferably passes through metal plates externally of the plugs and adjacent to the end caps.

Abstract: A receiver in a spread-spectrum communication system is adapted to receive a signal which is modulated by a binary code modulated by a binary code or a data, and includes a matched filter which detects a correlation between the received signal and a reference signal modulated by a reference code produced by a code generator. When the received code supplied from the matched filter coincides with or is slightly displaced from the reference code, a pulse is produced from a correlation spike waveform with a relatively large amplitude to extract a desired pulse from the pulse and use it to initialize the reference code generator.

Abstract: A delayed shutter actuation system for cameras providing from pre-flash or ambient light sensings automatic focusing control, automatic aperture control, or both, features a spring-energized shutter slide member coupled to a velocity limiter over an initial portion of the release stroke. A spring-driven focus control member, or a spring-driven exposure control member, or both, are coupled through movable regulator members to the shutter slide through lost motion couplings so that their respective movement rates are governed by the velocity limiter until they are locked in proper position by electrically controlled locks controlled responsively to such sensings. During a terminal portion of the motion of the shutter slide the velocity limiter automatically disengages to allow an unimpeded motion of the slide to actuate the shutter.

Abstract: A trap entangling vermin with adhesive material includes a pair of elongate ribs vacuum formed at central locations in the bottom wall of the tray carrying the adhesive material. The ribs are elongate and angled substantially at 45 degrees to the side walls positively to space apart the adhesive materials of two like traps placed in open faced relationship even when the traps are not in good registration. The ribs are hollow, opening to below the bottom wall, and have a uniform, substantially triangular shape along their length, with a radiused apex to increase the spot of contact between two engaging ribs.

Abstract: A signal transmission control apparatus connected between a telephone line and a terminal device controls signal transmission therebetween in no-ringing service. First DC and AC circuits of the apparatus become conductive in response to a DC control voltage from the telephone line. The first DC and AC circuits are connected to the telephone lines and the leads of a primary coil of the transformer of the apparatus. The secondary coil of the transformer is connected to the terminal device and an amplifier and first detection device of the apparatus. A subsequent AC calling signal from the telephone line, received on the first AC circuit, effects conduction in second DC and AC circuits through serial operation of the first detection circuit, a control circuit, a switching transistor and closure of relay contacts.

Abstract: A camera shutter cocking system employs a specially configured cam driven synchronously with a film-engaging sprocket to actuate a shutter cocking lever from a released to a shutter cocking condition by means of a cam follower mounted on the cocking lever. The cam preferably has two lobes, each configured to maintain the shutter cocking load on an electric motor drive system generally constant throughout substantially the entire film advancing operation. Excessive terminal overspeed of the motor drive system is thereby suppressed. A one-way clutch between the cam and the sprocket disengages the shutter cocking system from the motor drive during rewind and traps the cocking lever in a released position, thus preventing multiple double exposure of the film if the shutter release button is accidentally held down by the user during this operation.

Abstract: Sheet conveyor apparatus for feeding sheets one at a time to a stop wall at the end of the conveyor with at least one overhead support extending above said conveyor. An overhead longitudinally adjustable roller carrying sub-assembly extends above the conveyor supported on the overhead support. The sub-assembly is comprised of a roller which engages a sheet of material moving on the conveyor and positioned to prevent "bounce back" thereof as the sheets are moved against the stop wall. The rollers are carried on resilient arms which may be adjusted to vary the downward force of the roller upon the sheet moving on the conveyor.

Abstract: A closable drum having a heating coil therein safely stores a steam hose or unused lengths of the steam hose in an internal chamber thereof. A steam supply control valve connects a fixed steam outlet to the interior the chamber for connection to one end of the steam hose, allowing the other end of the hose to extend from the chamber. A heating coil control valve, also connected to the fixed steam outlet, controls the steam supplied to the heating coil. A perforated wall supported above the heating coil spaces the steam hose from the heating coil and allows heated air to rise into the chamber.

Abstract: A loading and ejection mechanism includes an inversion gear rotated by a motor in the opposite directions, an eject plate having a rack engageable with the inversion gear, and a mechanism to bring the rack into engagement with the inversion gear, so that the eject plate is moved back and forth by rotation of the inversion gear during loading and ejection so as to move a pack guide up and down and move an eject arm back and forth.

Abstract: A tape player is disclosed, whereby mode plates of the fast forward side and of the reverse side, each having an exclusive driving system and a head plate coupled at least with one of the mode plates and making a forward movement are provided; two electromagnetic plungers are disposed, each of which locks each of the mode plates at a position corresponding to the advanced position of the head plate; a joint plate is disposed rotatably with respect to each of the mode plate; with this joint plate is linked a fast forward and reverse drive plate moving from the central play position toward the left and right fast forward and reverse positions depending on the direction of the rotation of the joint plate; and on said head plate is disposed an engaging part with which a part of the fast forward and reverse plate is engaged, when the fast forward and reverse plate is in the central play position and the head plate advances.

Abstract: An automotive blade-type fuse has an enlarged transparent extraction flange. The flange is configured as a thin-wall structure having a cavity therein running substantially its entire length. The fuse terminal blades are captively secured in a housing to extend from the bottom thereof and have narrow extensions at the outer edges of the blades which extend upwardly into the flange cavity. A fuse link extends between the blade extensions within the cavity and at a stand-off distance from the interior walls of the cavity. The fuse housing is preferably of identical half-shell construction having lengthwise-running centering ribs and associated mating recesses to facilitate assembly.

Abstract: A container replacing a 55-gallon drum is substantially elongate rectangular with a length and width equal to or greater than its height to present a low center of gravity. An upstanding lip on a top wall and a depending lip on a bottom wall rest within one another to prevent lateral shifting of stacked containers. The lips have pairs of registered notches along all four sides to facilitate fork lifting from any side. The bottom depending lip spaces the bottom wall of the container from a floor to create a space for receiving the lift truck tines thereunder. The nesting depending and upstanding lips likewise create a space between stacked containers for receiving the lift truck tines therebetween. Openings in the top wall and both end walls provide access to the internal storage chamber, and the openings are protected from damage by overhanging top and bottom walls and the upstanding lip. The upstanding lip also includes perforations for lifting the container with such as rope, slings or chains from above.

Abstract: A plug-in fuse assembly comprises a housing made of insulating material and having relatively closely spaced vertical side walls bridges by vertical end walls and a metal plug-in fuse element having laterally spaced, generally parallel confronting terminals at the bottom thereof projecting downwardly from the bottom of said housing and upwardly extending current-carrying extensions of said terminals and a unique S-shaped fuse link extending between said current-carrying extensions. The S-shaped fuse link has about a 45.degree. angled upper and lower leg of at least about one-half the length of the central leg thereof and a width to thickness ratio of about 1/2 or less which maximizes its volume without the position contraints placed on the fuse link.

Abstract: A cartridge fuse has a pair of compressed, resilient plugs in opposed ends of a passageway passing through the fuse housing. The compressed material of the plugs engages and holds the fuse filament in slight tension along the length of the passageway and provide unexpectedly superior arc-quenching qualities to prevent explosion of the fuse housing. The ends of the fuse filament can be engaged through the centers of the plugs axially to align the fuse filament in the housing or the fuse filament ends can be engaged between the plugs and the interior of the housing wall to align the fuse filament under tension diagonally in the housing.

Abstract: A method of making sign component pieces to be interfitted in close abutting relationship. The preferred method aspect of the invention involves imprinting upon one or more flexible rectangular translucent cover sheets successive horizontal bands of repeated sign-forming indicia, the indicia being precisely positioned with respect to two intersecting reference margins of the sheet. The cover sheets are then laminated to a thin flexible backing sheet capable of adhering subsequent to be severed component sign pieces to a component piece support surface. The resulting laminated sheet is then applied to individual cutting devices, each having an adjustable backstop positioned to effect a linear cutting operation spaced a distance therefrom equal to the horizontal or vertical extent of the component piece involved.

Abstract: A surface acoustic wave device includes a plurality of surface acoustic wave elements provided on a piezoelectric substrate. The device further includes a metal electrode provided on the piezoelectric substrate between and around the respective elements, and a bias voltage is supplied to the metal electrode to cause local attenuation.

Abstract: A unique multiple configuration display sign system including a selection of a sign unit supporting and interconnecting hardware and standard sign units of special size, shape and construction as to be capable of use in any one of a multiplicity of display configurations through use of such hardware. The sign unit supporting and interconnecting hardware includes top side and bottom side linking brackets, linking plates or wall hanger brackets for abutting together one or more vertical sides of the sign units to form a selected sign configuration. The sign units supporting and interconnecting hardware integrated within an assembled display configuration to conceal such hardware so that the joined sign units appear to be free standing and unsupported by any visible structure.

Abstract: A fuse (12) comprising a tube of insulating material having an inner (16) and an outer wall surface (18) and forming a fuse housing (14). The fuse includes a pair of conductive fuse terminals (24, 26) secured at opposite axial ends (20, 22) of the tube. A fuse element (23) is axially disposed within and extends between the ends of the fuse housing, and its ends are electrically and physically directly connected with the adjacent fuse terminal. A plug of initially solid, arc-quenching material (32) at preferably only at one end of the fuse housing occupies only a limited axial extent thereat and evaporates under fuse blowing conditions to fill the housing with an arc-quenching vapor.

Abstract: A fuse assembly has a fuse link extending suspended in a housing between a pair of terminal extensions, which the fuse link interconnects electrically. A fuse blowing current-reducing material like tin is carried on the fuse link and spaced from and on opposite sides of the hot spot of the fuse link where the fuse is expected to blow.

Abstract: An ejection mechanism for a tape player features an operation member coupled to a manually actuated ejection member for ejection of a cassette when the ejection member is pressed inward. The operation member is coupled through appropriate linkages to an inversion spring to eject the cassette. The operation member is separately biased outward by a strong return spring, and is coupled to the manually operated ejection member by a releasable latch to be released therefrom during a terminal portion of the inward stroke when an inversion spring is properly positioned to eject the cassette. The manually operated ejection member is further coupled to raise the pack guide during initial portion of the inward stroke thereof. An electrically operated head disengagement system is similarly energized during the initial inward stroke of the ejection member. The latch is cammed to a releasing position during a terminal portion of the inward stroke of the coupled pair.