Abstract: A pressure receiving pin includes a fitting portion in a through hole of a fixed mold that communicates with a portion of an exhaust passage on an inlet side, a columnar distal end portion located coaxially with the fitting portion while closer to the exhaust passage that slides with respect to the through hole upon reception of molten metal, and an intermediate portion also located coaxially between the fitting portion and the distal end portion and that has a diameter smaller than a diameter of the distal end portion. An air supply device supplies air when a movable mold is opened such that the air passes through gaps formed between an outer peripheral surface of the intermediate portion and an inner peripheral surface of the through hole and between the distal end portion and the fixed mold, and flows out to the movable mold.

Abstract: An information processing apparatus includes a converting portion having a plurality of electrical conductors to be arranged in mutual separation and a medium arranged so as to mutually connect the plurality of electrical conductors, wherein the converting portion is the information processing apparatus to convert an input signal to an output signal. The medium includes the electrolyte and is configured to be capable of controlling an electrical conductivity of an electrically conductive path mutually electrically connecting the plurality of electrical conductors, and the medium is selected such that the electrical conductivity of the electrically conductive path changes over time with the input signal not being present.

Abstract: Disclosed is a foldable chair of the type which is capable of being folded or collapsed into a compact configuration when not in use, while at the same time, is capable of giving a weighty and sturdy appearance when in use, for example, on a movable bleacher stand. The chair 7 comprises a support base 8 to be installed on a floor 2, a pair of legs each comprising a first link member 9 pivotally mounted for a to-and-fro swing motion with respect to the support base 8 and a second link member 11 pivotally mounted behind the first link member 9 essentially in parallel therewith for a to-and-fro swing motion with respect to the support base 8, an armrest 12 pivotally connected to the upper ends of the first and second link members, a seat 13 supported at each of its lateral sides by the first link member 9, and a backrest 14 pivotally supported at each of its opposite lateral sides by the second link member 11.