Abstract:
The present invention provides an aluminum alloy plate for use as a lithographic printing plate having an improved uniformity of a surface roughened by electrolytic etching and wherein streaking does not occur, and a method for producing the same. The present invention is characterized in comprising, in wt %, Fe: 0.1 to 0.6%; Si: 0.02 to 0.2%; Cu: 0.001 to 0.02%; Zn: 0.01 to 0.1%; Mg: 0.005 to 0.1%; Ti: 0.001 to 0.05%, and the remainder Al and inevitable impurities, and an average value of the crystal particle size is 60 μm or less in a direction perpendicular to the rolling direction.
Abstract:
A surface contact card connector which includes a base section 2 made of an insulating material; a cover section 3 made of an insulating material and attached to the base section at a rear end for rotation between open and close positions; first and second engaging side walls 7 and 15 provided on opposite sides of the base and cover sections, respectively, such that when the cover section is closed, they are opposed to each other; first or second engaging side walls are flexible laterally; engaging windows or depressions 9, 10 being provided in the first or second engaging side walls; engaging and releasing projections 16 and 17 provided on the second or first engaging side walls such that when the cover section is closed, they flex the first or second side walls laterally and engage the engaging members; the engaging projections having a rectangular triangle shape whose upper side 16A is substantially at right angles to the engaging side walls while the release projections being provided at positions flexible with respect to the engaging projections when the cover section is opened.
Abstract:
A valve assembly for automatically controlling the flow of a fluid comprises a casing having formed therein a first chamber, a second chamber normally communicating with the first chamber and a pressure chamber in constant fluid communication with the second chamber. Means in the form of a bellows or piston is disposed in the pressure chamber to operate a valve member such that communication between the first and second chambers is interrupted upon the increase of the fluid pressure in the latter beyond a normal level.
Abstract:
New antibiotic substances are obtained by culturing a strain belonging to the genus Streptomyces and by recovering said substances from the culture material. The new antibiotic substances possess insecticidal and acaricidal properties.
Abstract:
A PC card electrical connector with an expandable ejector includes an intermediate bar (10) having a cam follower pin (13); an ejector button section (20) for motion between a lock position (A2) where the ejector button section projects little more than a front end of the casing and a release position (C2) where the ejector button section projects far from the front end of the casing; a line spring (28) having a cam follower end (30); a first biasing spring (30) for biasing the ejector button section forwardly so that when the ejector button section is depressed a first time to release the follower end of the line spring from the lock position, the ejector button section is brought to the release position; and a second biasing spring (49) for biasing the intermediate bar onto a side of the ejector button section so that when the ejector button section is moved forward to the release position, the intermediate bar is turned to connect to the ejector button section, thereby making it possible that by depressing a second time the ejector button section to move the intermediate bar rearwardly, the receiving plate is brought to the removing position for removal of the PC card.
Abstract:
A PC card electrical connector includes a case (40); an ejector (20) having a front button (21) and a rear arm (22); a first spring (27) for forwardly biasing the ejector; an intermediate bar (10) for abutment with the ejector having a cam follower (13); a second spring (49) for biasing the intermediate bar toward the rear arm of the ejector; an ejector bar (5) for abutment with the intermediate bar; a cam member (63) movable on the bottom of the case and having an engaging portion; a first cam channel (I) provided on the ejector so as to engage the cam member such that when a PC card is inserted, the engaging portion is held at a lock position where the ejector button is held at a depressed position and, when the ejector button is depressed, the engaging portion is released from the lock position and, when the ejector button is depressed again, the ejector is moved to a projected position while the engaging portion is returned to the lock position; and a second cam channel (II) provided on the bottom of the case so as to engage the cam follower such that upon first depression, the intermediate bar is placed against the rear arm and, upon second depression, the intermediate bar is brought to the position opposed to the ejector, thereby enabling to eject the PC card from the receiving slot.
Abstract:
A PC card electrical connector which includes a housing having at least upper and lower storage cavities for accepting PC cards (1) one for each storage cavity; at least upper and lower movable plates (2) disposed near the upper and lower storage cavities, respectively, each movable plate having at least one abutment member (2A) for abutment with a portion of the PC cards; at least upper and lower eject levers (5) rotatably supported by the housing in planes parallel to the PC cards and coupled at one end to the movable plates; at least upper and lower intermediate bars (6) coupled to the other end of the upper and lower eject levers, respectively, and movable along sides of the storage cavities; and an ejector (8, 9) for selectively engaging and pushing one of the upper and lower intermediate bars, thereby permitting operation of one of the eject levers to eject the desired PC card with ease and few errors.
Abstract:
The present invention provides an aluminum alloy plate for use as a lithographic printing plate having an improved uniformity of a surface roughened by electrolytic etching and wherein streaking does not occur, and a method for producing the same. The present invention is characterized in comprising, in wt %, Fe: 0.1 to 0.6%; Si: 0.02 to 0.2%; Cu: 0.001 to 0.02%; Zn: 0.01 to 0.1%; Mg: 0.005 to 0.1%; Ti: 0.001 to 0.05%, and the remainder Al and inevitable impurities, and an average value of the crystal particle size is 60 μm or less in a direction perpendicular to the rolling direction.
Abstract:
The present invention provides an aluminum alloy support body for a presensitized plate in which the uniformity of the grained surface due to electrochemical etching is further improved, and a method of producing the same. The aluminum alloy support body for the presensitized plate according to the present invention has a composition comprising 0.1 to 0.7% by weight of Fe; 0.01 to 0.2% by weight of Si; 0.005 to 1.0% by weight of one or more rare earth elements; and the balance of Al and unavoidable impurities. In the present invention, the aluminum alloy support body may further contain 0.005 to 0.1% by weight of Ni and 0.005 to 0.3% by weight of one or more rare earth elements. One or more elements of Ce, La and Nd can be selected as the rare earth elements.
Abstract:
An ejector comprises an ejector bar (2), a pressed section (3) provided at an end of the ejector bar, a press button (4) rotatably linked to the pressed section for rotation between an operation position where the press button projects in the lengthwise direction of the ejector bar and a stand-by position at right angles with the ejector bar and an engaging member (8) having at one end an engaging claw (9) which is movable between an ejection position where a card is inserted or ejected and an engaging position where the engaging claw engages the rear end of a card to prevent accidental ejection of the card, the press button and the engaging member being linked such that when the press button is at the operational position, the engaging member is at the ejection position while when the press button is at the stand-by position, the engaging member is at the engaging position.