摘要:
A plastic container bottle provided with carrying means. The bottle is composed of a neck portion of thick wall that has a step below a support ring formed around a lower portion of the neck portion and projecting therefrom and a ring-shaped groove between the step and the support ring, and a flat-shaped body portion of thin wall with shoulder portions extending to both sides from the base of the neck portion, that are formed integrally by stretch blow molding process. The carrying means is composed of a rectangular insertion plate having a width at least substantially the same as the outer diameter of the neck portion and a fitting portion at an end thereof that are integrally formed from a flexible thermoplastic material in an L-shape, the fitting portion having a pair of holding pieces of the same shapes with inner circumference thereof having the same diameter as the diameter of the ring-shaped groove and end opening being narrower than the diameter of the ring-shaped groove. The holding pieces are fitted onto the ring-shaped groove from the back face side of the body portion of the bottle, and the insertion plate is located with the longitudinal direction directed vertically at the center of the back face of the body portion, with a holding space being formed between the insertion plate and the back face side of the body portion.
摘要:
An all-electric glass-melting deep furnace and a method of refining and supplying glass are disclosed in which high-quality molten glass is efficiently produced in large quantity at high heat efficiency. The glass-melting deep furnace 20 has a bottom 2 and a side wall 4 constructed by piling up fireproof bricks 3 on the perimeter of the bottom 2. A height H of the side wall 4 is set to be twice or more than twice as long as an inside dimension D of the bottom 2 of the furnace. Since the furnace 20 is deep, there can be achieved a thick batch layer, a space in which glass is melted at high temperature, and a cooling area which is necessary to refine molten glass. The furnace makes it possible for the molten glass 6 to absorb fine seeds by its pressure and cooling effects that are produced when the seeds move downward to the bottom 2.