Abstract: A method and apparatus for inspecting the bottom of a transparent container for defective conditions, such as internal stuck glass, internal loose glass or foreign material. The container is provided in an inspection zone and a linearly extending line of light from a light source is focused to pass through the container bottom with the line of light extending the length of the inspection zone and hence the length of the container bottom. The linearly extending line of light enters the container through the exterior surface of the container bottom. The intensity of the light reflected from defects in or within the container and through the container side wall at a predetermined angle is detected. The detected intensity of the reflected light is compared with a predetermined threshold value that provides a measure of the acceptability of the container.

Abstract: The rims of containers are coated with a liquid substance by driving an endless applicator belt which carries the substance, the applicator belt including an application flight. The containers are advanced such that the container rims are exposed and in contact with the application flight to become coated with the substance. The containers are advanced in the same direction, and at the same speed, as the application flight. The containers are rotated about their longitudinal axes defined by the rims, while the rims are in contact with the application flight.

Abstract: A system for automatically detecting sidewall and dimensional defects in a transparent container includes a laser scanning system positioned astride a conveyor in a production line. In an upstream inspection zone a laser beam vertically scans a portion of the side wall of the container. Photosensors positioned in a detection chamber detect the specific effect which any defect has upon the laser beam by determining the location of light passing through the container and comparing its intensity against pre-set thresholds. A flaw signal is generated when a threshold is exceeded. The number of flaw signals is counted and when the count equals a pre-set value a reject signal is generated to eject the defective container from the conveyor. If a container is not rejected, it passes through a rotator assembly which rotates the container precisely 90.degree..

Abstract: Provided is a method for coating glass articles with a pourable, stable aqueous based emulsion comprising an unsaturated fatty acid, e.g., oleic or linoleic acid, and an alkali metal salt thereof, wherein the weight ratio of acid to salt in the emulsion ranges from about 2:1 to about 1:1. Application of the emulsion as a coating can be readily effected at glassware temperatures below 200.degree. F. The resultant coating is clear and transparent and provides superior lubricious and abrasion resistant properties.

Abstract: An improved method is provided for the lubrication of molds and delivery equipment which are employed in the production of glass articles wherein the viscous glass which is employed in the production of such articles is at least partially coated with a suitable lubricant prior to contact with the delivery equipment and/or prior to entry of the glass into the mold.

Abstract: A container having a substantially rigid box member and a flexible liner member. An attachment member is provided to attach the box member and liner member together so that the attachment member is fixed in the vertical plane with respect to the box member and/or is non-rotatably fixed with respect to the box member. The container is constructed so that a plurality of such containers can be attached one on top of the other.

Abstract: The present invention provides aluminum bronze glassmaking molds. The molds are substantially free of zinc and lead, consist essentially of manganese, nickel, iron, aluminum and copper, and exhibit superior wear resistance, durability, pitting and oxidation resistance, and machinability as compared to prior art glassmaking molds. Further, the aluminum bronze glassmaking molds of the present invention have a heretofore unavailable range of thermal conductivities at elevated temperatures so as to optimize the rate of glass forming in, e.g., Hartford Individual Section glass forming machines.

Abstract: A method for sealing a rim-like opening in a glass container is described. The surface of the opening is treated with tin and/or titanium oxide precursors and with or without one or more of the groups consisting of fluorides, sulfur oxides and sulfur oxide precursors and then overcoated with a chromium III organic metallic complex. A membrane comprising a thermoplastic film is pressed onto the coated opening surface and heated to cause glass-plastic adhesion, forming a closure. The coating steps may be applied to glass containers immediately after forming and annealing as appropriate, or may be applied to glass containers taken from storage.