Abstract: A glass plate is bend-shaped by transferring a glass plate by way of transferring rollers in a heating furnace; sucking and suspending the glass plate by way of a glass plate sucking and suspending device which is disposed in the heating furnace and at the downstream side of the transferring rollers; moving arms of a positioning device disposed at the lower portion of the glass plate sucking and suspending device in the direction parallel to a glass plate suspension surface of the glass plate sucking and suspending device; sucking and suspending glass plate supporting portions each connected to the top end of each of the arms by interposing a joint portion so as to keep the distance between the glass plate supporting portions and the glass plate sucking and suspending device at a predetermined value; supporting edge portion of the glass plate by the glass plate supporting portions, and positioning the glass plate to a predetermined position by advancing and retracting the arms in the direction parallel to the

Abstract: The problem of unevenness of bottle temperatures at the entry of slow annealing furnace due to the variation of time periods necessary for respective bottles discharged from an IS bottle manufacturing machine to reach the annealing furnace has been solved by an equalization of said time periods. For this purpose, the bottle discharging order from the IS bottle manufacturing machine is controlled and use is made of two conveyors having different running speeds and/or direction of running. As a result, a precise temperature control in the Hot-End-Coating apparatus provided upstream from the annealing furnace can be carried out owing to the equalized temperatures of bottles entering into the annealing furnace.

Abstract: A production installation for the contact toughening of glass sheets comprises a horizontal furnace for heating the glass sheets, a press containing two liquid-cooled pressing plates, a feed apparatus for transferring the heated glass sheets into the press and a removal apparatus for removing the toughened glass sheets out of the press. To the lower pressing plate, a solids-transmitted sound pick-up is coupled which, if a glass sheet breaks in the press, supplies an electrical signal. From this signal, after suitable processing of the signal, the control device is triggered, and as a result thereof interrupts the process sequence.

Abstract: Apparatus and method for the pyrolysis of waste material which is not itself susceptible to heating by microwave radiation. The method comprises:(a) contacting the waste material, under an atmosphere wherein flame generation is substantially prevented, with a bed of pulverulent carbonaceous material (such as pulverised scrap tires) which is susceptible to heating by microwave irradiation; and(b) heating the pulverulent material by means of microwave irradiation so as to transfer thermal energy from the pulverulent material to the waste material and cause substantial pyrolysis of the waste material.

Abstract: In a curved laminated glass comprising a plurality of glass plates which are bent in a substantially convex form, laminated and bonded together, an outer glass plate is softened faster than an inner glass plate when they are located in an atmosphere of high temperature which is higher than a temperature capable of bending glass.

Abstract: A glass forehearth is disclosed which is made up of upstream and downstream zones each having a roof structure which divides the channel into opposed side channels separated by a central channel. The glass in the central channel is heated for at least a portion of its length enabling the flow rate of the forehearth to be decreased.

Abstract: An arrangement for filling coal in oven chambers of a coke oven battery has a telescopable filling tube mountable on a filling car and having a lower end which is lowerable to a filling hole frame of a filling hole of a coke oven battery, an upper sealing ring arranged on an outer side of the upper end of a lower tubular piece and a lower sealing ring arranged on an outer side of the lower end of the lower tubular piece of the filling tube, and each having the shape of a portion of a sphere and being provided with upwardly and downwardly directed circular segment-shaped outer surfaces, an additional sealing ring arranged on an inner side of the lower end of an upper tubular piece of the filling tube and having an outer surface which is inclined upwardly, a contact ring loosely located on the lower sealing ring and corresponding to the latter, a filling hole frame sealing ring extending in a funnel-shaped manner into the filling hole opening and has a sealing surface with a spherical cross-section, elastic sea

Abstract: An apparatus for supporting a glass sheet during a tempering process is provided in which a truss ring structure having a hot/cold ring and a plurality of shaped fingers having converging diagonal sides extending from the hot/cold ring supports the glass sheet. The apparatus further includes cushioning means which may include at least one layer of a composite mesh cloth, a fiberglass tube, or both. In a preferred arrangement, the composite mesh cloth is folded around the fiberglass tube and the shaped fingers to provide optimum cushion and quench air flow to the glass.

Abstract: The invention relates to a press-bending method and apparatus for bending glass sheets. The press bending is effected between an upper curved mold surface (12) and a lower ring mold (13). Air is blown through pores included in an upper mold (2) into a space (3) between mold surface (12) and a glass sheet (11), and vacuumed from the edges of the space for developing in the space (3) a negative pressure (P.sub.2) capable of bearing a glass sheet (1) in the immediate proximity of the mold surface (12), yet without contacting the mold surface (12).

Abstract: Apparatus operable in accordance with the method of the present invention is provided for selectively cooling areas of a glass sheet during heating in the lehr in order to eliminate hot spots and minimize undesirable sagging of portions of the glass sheet. The apparatus includes a gas hearth block upon which the glass sheet is supported during heating and an air nozzle or air nozzles connected to a source of compressed room temperature air located over those areas of the glass sheet that tend to develop hot spots. The air nozzle or air nozzles blow cooler air onto those selected areas of the glass sheet and even out the temperature of the heated glass sheet. This may be done prior to forming and/or tempering the glass sheet. The method and apparatus of the present invention is particularly useful with automobile glazings, such as sidelights and rear windows, bearing peripheral dark banding which show an increased tendency to sag during heating, particularly at the top edge portions.

Abstract: This invention comprises a method and apparatus for removing oil and tar based wood preservatives from sawdust. A pole treated with oil or tar basee wood preservative is shaved to remove the treated outer wood layer, leaving the interior preservative free. The sawdust is subjected to rapid heating in a turbulent oxygen-free gas stream and the oil and tar are rapidly distilled from the sawdust. The sawdust and gas are separated in a mechanical separator and the hot gas is rapidly cooled, condensed and recovered.

Abstract: Apparatus (20,120) for forming a heated glass sheet G is disclosed as including a vacuum mold (22,22a,122,122a) having a full surface (24,24a,124,124a) against which a peripheral mold (26,26a,126,126a) presses the glass sheet periphery and with which at least one vacuum reservoir (32,33) is communicated within the interior of the sealed glass sheet periphery to form the glass sheet to the shape of the vacuum mold surface. Valving (38) of a vacuum system (28) is preferably operable to provide the vacuum impulse in two stages with an initial limited extent of vacuum and a subsequent greater extent of vacuum by communication first with one vacuum reservoir (32) and subsequently with another vacuum reservoir (33). Different embodiments of the vacuum mold have the vacuum mold surface facing upwardly and downwardly with convex and concave shapes.

Abstract: In a process and to an apparatus for bending a glass sheet heated to the bending temperature in a horizontal furnace, through which it is passed by a motor roller conveyor, which passes it into a bending cell where it is kept at an ambient temperature substantially identical to the bending temperature, the glass sheet is immobilized in the bending cell in an upper bending mold perpendicular to an annular countermold surrounding an element for supporting the central part of the glass sheet in the bending cell. The annular countermold is raised in order to press the glass sheet against the upper bending mold.

Abstract: The invention relates to a method and apparatus for equalizing the temperature profile of glass sheets in a roller-equipped furnace included in a horizontal tempering plant. At least in the early stage of a heating cycle, the upper surface of a glass sheet is exposed to an intensified convection heat effect by blasting air into the furnace from blasting pipes (3) located close to the upper surface of a glass sheet. This blasting compensates for the vigorous heat transfer to the lower surface of a glass sheet in the early stage of a heating cycle, which is caused by hot rollers. The blasting range and spot is manoeuvred in the longitudinal direction of a furnace in a manner that, at any given time, the blasting is only applied to that longitudinal section of a furnace in which a movable glass sheet is located at a given time.

Abstract: A loading mechanism places waste material into a porous rotatable cylinder that is mounted for relative rotation within an air-tight housing. Once loaded, the housing is sealed and oxygen is evacuated. A microwave heating device heats the waste material within the cylinder and breaks the waste material down into solid and fluid products. A drive motor simultaneously rotates the cylinder at high speed, creating centrifugal force on the waste material. The fluid products escape outwardly from the porous cylinder and are transferred to a heat exchanger chamber where they are cooled. A fractional distillation system stratifies the fluid products according to weight for purposes of recovery.

Abstract: A process for bending a glass sheet according to which the glass sheet is heated in horizontal position until its bending temperature is reached and is brought into contact with an upper bending form by a force of a pneumatic nature. A fluid barrier is generated at the periphery of the glass sheet, the fluid barrier limiting the entry and exit of air near the upper bending form.

Abstract: The processor is of the type incorporating horizontal, concentric, co-extensive inner and outer tubular members which rotate together. The processor is modified in the following respects:The front end of the inner tubular member is circumferentially corrugated and may be provided in the form of a plurality of parallel tubes arranged in a ring array, to thereby increase the shell area to promote heat transfer through the tube walls;Means are provided for interconnecting the tubular members, which means can accommodate differing rates of thermal expansion; anda rock recycle tube assembly is provided to recover oversize material leaving the corrugated portion of the inner tubular member and reject it from the processor.

Abstract: Waste lubricating oil is reprocessed into commercially usable diesel fuel and naphtha by thermocracking. A thermocracker unit is fired with sludge removed from the principal pool of oil undergoing vaporization. The vapors are separated from liquids in a primary distillation tower with precisely controlled heating. Resultant vapors are partially condensed. Resultant liquids flow downward through a secondary distillation tower into a reboiler which is heated by a flue gas bypass with an auxiliary burner. Vapors leaving the secondary distillation tower are partially condensed and resultant fluids are passed to a light ends flash tank. Gases from the flash tank fuel the auxiliary burner. Liquids are collected and stored for selling as naphtha. Hot liquids are withdrawn from the reboiler and are immediately cooled to atmospheric conditions. Liquids within specification are stored in a diesel storage tank for further use and sale.

Abstract: In an individual section machine for producing glass containers from molten glass, a sliding tube-in-a-tube arrangement forms part of an internal cooling air passageway for directing a pressurized air flow to a pressing plunger. A linearly-movable piston comprising a ring-shaped base with an upwardly-projecting rod portion, is supported within a cylinder casing, and the plunger is supported on a projecting end of the rod portion. The piston has a central opening in the bore of the rod portion which merges with a longitudinal elongated thin-walled tubular member. The tubular member is disposed to define an annular space between its outer surface and the internal bore sidewall. A fixed second tubular member projects centrally upwardly from the cylinder casing's base end and into the annular space whereby linear movement of the piston causes the first tubular member to telescopically slide within the fixed second tubular member and maintain an extensible-retractable air tube structure.

Abstract: Process for lubricating a surface for the manufacture of a glass object, in which a layer of lubricant is periodically deposited on the surface.This layer of lubricant is produced with the aid of a source of heat such as an oxyfuel flame having a temperature higher than 2000.degree. K. through which there is injected during a given period of time a gaseous hydrocarbon or a mixture of gaseous hydrocarbons comprising at least 15% of a constituent in respect of which the ratio .[.fo.]. .Iadd.of .Iaddend.the number .[.oc.]. .Iadd.of .Iaddend.carbon atoms to the number of hydrogen atoms C/H is higher than 0.75. The rate of injection of the hydrocarbon through the flame and the temperature of the latter are controlled in such manner as to obtain a porous layer of carbonaceous particles capable of burning in the air when they are deposited on the glass object when the latter is still hot.