Abstract: A green compact (17) preheated to a predetermined temperature in a heating furnace (16) is inserted into a container comprising a press table (20) and a hollow cylinder (25), and molten glass (33) is then placed into the container. The green compact (17) is uniformly pressed by a press rod (29) through the molten glass (33). The molten glass (33) is cooled by a coolant flowing through channels (22) and (26) formed in the press table (20) and the cylinder (25), whereby a solidified shell (34) is formed at the outer peripheral portion of the mass of glass. Finally, the shell (34) is taken out from the container, and the molten portion of glass (33) is transferred into a ladle (31) through a grating (30), leaving the compressed sintered product on the grating (30).

Abstract: A transfer mechanism for transferring articles one by one from one position to another position, particularly for use with a forging press having a plurality of molds arranged in series to successively transfer blanks from a receiving position to the mold of the first step and then to the mold of the second step and so on. The transfer mechanism comprising a pair of parallel feed bars provided on their opposing surfaces with plural pairs of clamping jaws and three separate sets of hydraulic cylinders for moving the feed bars in three orthogonal directions, respectively, and cam-operated hydraulic pumps operated with cams mounted in different phases on a drive shaft rotated in timed relation with the forging press, each cam-operated hydraulic pump being hydraulically connected to each hydraulic cylinder so that the feed bars effect cyclic movement to clamp, lift up, carry ahead, lift down, and unclamp blanks and to return to an original position.

Abstract: A transfer mechanism for transferring articles one by one from one position to another position, particularly for use with a forging press having a plurality of molds arranged in series to successively transfer blanks from a receiving position to the mold of the first step and then to the mold of the second step and so on.

Abstract: A roll material comprising, in proportions by weight, 0.04-0.20% C, 0.2-0.8% Si, 0.4-1.5% Mn, 0.2-1.0% Ni, 10.0-14.0% Cr, 0.5-4% Cu, 0.1-0.5% V, 0.01-0.35% Nb, 0.01-0.06% Al, P and S each in a reduced amount of up to 0.03% as impurity elements, and the balance Fe. The material is comparable in resistance to high-temperature oxidation in 13Cr martensitic stainless steels which are presently used and yet has outstanding strength at high temperatures.