摘要:
A trill mechanism for a wind instrument such as a flute or a piccolo which assures production of clear sounds of a stabilized tune with a clear fundamental tone with minimized noises upon trill playing and production of a D' (D"#) tone with a sound volume substantially equal to that of the other tones (about three times that of the D' (D"#) tone with a conventional trill mechanism). The trill mechanism comprises a middle joint in the form of a hollow tube having a single trill tone hole bored at a particular location thereof, a trill cup mounted on the middle joint for movement from and to a closing position in which the trill cup closes the trill tone hole of the middle joint, and a spring for urging the trill cup to the closing position. The trill cup can be manually moved alternatively to a first and second open position in which the trill tone hole of the middle joint is open with a first opening or with a second opening which is greater than the first opening.
摘要:
A movable blade pump including an actuating mechanism for imparting rotational movement to blades which mechanism is contained in an impeller boss sealed against the outside and filled with hydraulic fluid and is driven by a hydraulic cylinder device secured to a suction casing below the impeller boss. Feed and discharge of hydraulic fluid into and from the hydraulic piston device are effected through fluid passages formed in the suction casing and a fixed mounting for the hydraulic fluid device, and the blades are set at any angular positions within the range of the stroke of the piston.
摘要:
A Ni-base casting superalloy containing, in masse, C: 0.05 to 0.2, Si: 0.01 to 1, Mn: 0.01 to 1, Co: 5 to 20, Fe: 10 or less, Cr: 15 to 25, and one kind or two kinds or more of Mo, W, and Re, with Mo+(W+Re)/2: 8 to 25, the balance being Ni and unavoidable impurities.
摘要:
A cuff-equipped tube formed by providing a cuff to the outer periphery of a flexible tube, the cuff being expanded by introducing an operation fluid thereinto or being contracted by discharging the operation fluid therefrom. The cuff is provided with a cuff affixing portion expanded outward by the introduction of the operation fluid thereinto, and also with one mounting portion and the other mounting portion that are mounted to the outer peripheral surface of the tube. The connecting portions of the cuff affixing portion and the one mounting portion is affixed in a constricted shape to the outer peripheral surface of the tube, and the connecting portions of the cuff affixing portion and the other mounting portion is affixed in a constricted shape to the outer peripheral surface of the tube.
摘要:
A low alloy steel ingot contains from 0.15 to 0.30% of C, from 0.03 to 0.2% of Si, from 0.5 to 2.0% of Mn, from 0.1 to 1.3% of Ni, from 1.5 to 3.5% of Cr, from 0.1 to 1.0% of Mo, and more than 0.15 to 0.35% of V, and optionally Ni, with a balance being Fe and unavoidable impurities. Performing quality heat treatment including a quenching step and a tempering step to the low alloy steel ingot to obtain a material, which has a grain size number of from 3 to 7 and is free from pro-eutectoid ferrite in a metallographic structure thereof, and which has a tensile strength of from 760 to 860 MPa and a fracture appearance transition temperature of not higher than 40° C.
摘要:
A forging heat resistant steel of an embodiment contains in percent by mass C: 0.05-0.2, Si: 0.01-0.1, Mn: 0.01-0.15, Ni: 0.05-1, Cr: 8 or more and less than 10, Mo: 0.05-1, V: 0.05-0.3, Co: 1-5, W: 1-2.2, N: 0.01 or more and less than 0.015, Nb: 0.01-0.15, B: 0.003-0.03, and a remainder comprising Fe and unavoidable impurities.
摘要:
A character input apparatus which makes it possible to suppress degradation of use-friendliness in a case where a visually disabled user inputs characters using an auto-complete function. In the character string input apparatus, a character string to be input as a portion following a character string input by a user is predicted based on the character string input by the user, and the character string input by the user is completed using the predicted character string as a portion complementary thereto. In a voice guidance mode, information associated with a key selected by the user is read aloud by voice. When the voice guidance mode is enabled, the character string input apparatus disables the auto-complete function and performs control such that a character string cannot be automatically completed.
摘要:
Provided is an optical member capable of keeping a high performance antireflection effect over a long period of time with respect to an arbitrary substrate. The optical member has plural layers on a substrate, and includes at least one metal oxide layer having a void, and at least one layer containing an organic resin as a main component formed between the substrate and the metal oxide layer. The metal oxide layer is a plate crystal layer formed of a plate crystal containing aluminum oxide as a main component and a surface of the plate crystal layer has an uneven profile. The organic resin has an aromatic ring and/or a hetero ring in at least a part thereof.