摘要:
A process of forming glass balls by treatment of particulate vitreous material and a second material comprising carbon material and a carbonated salt. The process is carried out at a temperature, for the particular particulate vitreous material, which corresponds to a viscosity of from about 10.sup.6 to about 10.sup.3.5 poises with mixing and agitation.The apparatus includes a furnace having a tube (4) adapted to rotate about an horizontal or inclined axis, delivery means (10, 12, 14) to the tube for the materials to be treated, and heating means (8, 20) for heating the tube and the bed of material from both an external and internal location.
摘要:
Process for manufacture of plate glass including pouring molten glass onto a bath of molten metal (4) contained in a tank having side wall (1), an inlet wall (2) and an outlet wall (3). The glass is advanced by means to form a glass ribbon (7) and extraction means draw the ribbon in a glass drawing space (II and III). Pairs of baffles (13 and 14) are positioned in the drawing zone between each side edge of the ribbon and the side walls to limit upstream flow of cooler molten metal in a direction towards the inlet wall.A device for manufacture of plate glass including a tank having an inlet wall (2), an outlet wall (3) and side walls (1) for holding a bath of molten metal (4) onto which molten glass is poured by feed means (6). The glass is advanced by advance means (9) in a drawing space to form a ribbon (7). Pairs of baffles (13 and 14) are positioned in the drawing zone to extend between the edges of the ribbon and the side walls to prevent upstream flow of molten metal in a direction towards the inlet wall.
摘要:
The collector comprises two thin stamped metal sheets, joined together by welding at their periphery, between which flows a heat-carrying liquid and is characterized in that said metal sheets are stamped with repetitive patterns whose concave surfaces are disposed opposite each other, but with staggering in their plane equal to approximately half a pitch, and in that the flat unstamped parts of said metal sheets are joined together by spot welds disposed substantially symmetrically and evenly in relation to said patterns.This collector is capable of resisting high pressures of the heat-carrying liquid.
摘要:
Apparatus for forming, in two steps, panel, or shaped article, by first providing a bath of fluent cementitious material under a core of cellular, preexpanded and cohered polystyrene cells or pearls, having a density less than that of the cementitious material, allowing the core partially immersed to rise in a controlled way over the cementitious material, maintaining the core under pressure until the bath has partially set to prevent further rise of the core, pouring onto the core and partially set bath, a second quantity of fluent cementitious material to completely enrobe the core and form thereover a top revetment, smoothing the surface of the second quantity of cementitious material and letting it set to complete the panel.
摘要:
A Cartesian coordinate tracing table for entering a program into a memory of an automatically controlled machine. The tabel has guide bars extending in the X and Y directions. Two rotary generators which are responsive to movement of a cursor in the X and Y directions generate electrical signals for transmission to a memory. One rotary pulse generator is mounted on a carriage movable along the guide bar extending in the X direction. The other rotary pulse generator is mounted on a cursor slidable along the guide bar extending in the Y direction which in turn is mounted on the carriage. Each rotary pulse generator includes a rotatable shaft having a driving roller which contacts a guide bar to provide the driving force to the generator.
摘要:
In the technique for fiberizing glass by the use of a centrifugal spinner delivering glass streams into an attenuating blast, a novel spinner construction is provided, and provision is also made for increasing the production, while also providing for the use of glass of lower cost, and at the same time, reducing environmental pollution. Glass compositions and spinner alloy compositions particularly suited for use in accordance with the invention, are also disclosed.
摘要:
In the technique for fiberizing glass by the use of a centrifugal spinner delivering glass streams into an attenuating blast, a novel spinner construction is provided, and provision is also made for increasing the production, while also providing for the use of glass of lower cost, and at the same time, reducing environmental pollution. Glass compositions and spinner alloy compositions particularly suited for use in accordance with the invention, are also disclosed.
摘要:
A device for transporting a sheet of glass through sheet processing stations of a furnace. The device comprises a carriage having a carrying frame including a longitudinal horizontal member supporting a plurality of sheet hangers. The longitudinal horizontal member is rigidly connected at its center portion to the carriage and movably connected to the carriage at other portions.
摘要:
Methods and apparatus for removing particles from sheet materials, particularly plastic materials that are to be laminated to other materials, are disclosed. The sheet is destaticized, wiped and lightly scraped to dislodge particles from the sheet. The dislodged particles are removed from the sheet by suction. Scrapers with single fixed blades and scrapers with multiple movable blades are used to dislodge particles that are embedded in or adhered to the sheet. The process and apparatus are particularly useful for cleaning sheets of plastic material that are used in laminated glazings having stringent optical requirements.
摘要:
An apparatus for automatically unfastening sheets of glass which are suspended vertically from pincer-like gripping means including a lifting element for lifting a sheet of glass towards the gripping means. A release means for moving the gripping means out of engagement with the sheet is included when a sheet is raised by the lifting means. The lifting means includes at least one gripper element which is movable in a horizontal direction to grip a surface of a sheet of glass.