Abstract: Molten glass entering from a refiner is conditioned, in an optimum operation, such that its temperature along the center of the flowing glass just in advance of its entry into the feeder, will be of equal temperature near the surface near the bottom and intermediate these two points. A tri-level thermocouple is positioned along the center line at approximately nine inches from the feeder for monitoring these temperatures, and to serve as an aid to the operator in controlling the actual glass temperature. Positioned at opposite sides of the forehearth, approximately eight inches from the center line, are tri-level thermocouples. The three couples will be positioned at the same relative depths as those at the center line. The center thermocouple on the right side will have its output used as the control temperature for a temperature override circuit connected to the electrodes.

Abstract: A web handling apparatus for splicing the terminal end of one roll of web stock to the lead end of a second roll of web stock in an uninterrupted feed to a machine. The first roll web is fed into the machine and a second roll web in parallel relationship to the first is guided by two turning bars laterally and again in parallel and overlying relationship to the first. Thereafter a splicer device joins the second roll to the first roll. The second turning bar is pivotally mounted on a vertical axis and movable vertically such that it can be moved from below the first roll web vertically upwardly and by pivoting about the vertical axis to a position whereat the second turning bar overlies the first roll web. Subsequently, the second roll web will overlie the first web in splicing relationship.

Abstract: A serving tray for use in a food rethermalizing cabinet. The tray is sectioned by a thermal divider and formed so that dishes of food placed therein can be selectively heated or cooled by separate air streams flowing from one end of the tray to the other. The thermal divider extends from one side of the tray to the other separating the tray interior into two channels. Inlet and outlet ports are provided at opposite ends of each channel. Tapered connectors on the sides of the tray are designed to mate with matching tapered sections in the cabinet such that when the tray is firmly seated in the cabinet, a fluid tight seal exists between the mating connector members. The inlet and outlet ports for each channel are precisely aligned with corresponding ports in the cabinet and the tray is supported thereby in the cabinet and cannot be inserted in reverse orientation.

Abstract: There is disclosed a barium-free Type I, Class B laboratory glass according to the standard specification set forth in ASTM E 438-80a having a linear coefficient of expansion (0.degree. to 300.degree. C., cm/cm-.degree.C..times.10.sup.-7) of about 48 to 56 and having a chemical durability, maximum titration equivalent of: 0.2N H.sub.2 SO.sub.4 /10 g of glass of 1.0 ml, the composition consisting essentially of the following ingredients in approximate percent by weight:______________________________________ Ingredient Percent ______________________________________ SiO.sub.2 70-74 B.sub.2 O.sub.3 9-13 Al.sub.2 O.sub.3 5-8 Na.sub.2 O 5-8 K.sub.2 O 0-4 CaO 0-3 MgO 0-1 ______________________________________the glass composition having an annealing point of about 550.degree. C. to 585.degree. C., a liquidus of about 1730.degree. F. to 1760.degree. F. and a Log n at the liquidus about 5.0 to 5.5.

Abstract: There is provided a plural part receptacle assemblage for the storage and handling of bulk quantities of material which assemblage includes a tight-head plastic drum molded as a single article to which is concentrically attached, subsequent to the formation of the drum, handling means so arranged and constructed as to be grippable about substantially the full 360.degree. circumference of the drum with steel drum chime-handling devices for transportation of the assemblage and the bulk quantities of material stored in the drum; preferably the drum or handling means, or both, include means for preventing liquid accumulation between the handling means and drum.

Abstract: A two-piece child-resistant closure comprises nested inner and outer closure members. Sets of lugs on the inner surface of the outer member panel and the outer surface of the inner member panel engage each other when the outer members rotated for application of the closure to a container, but cam past each other on inclined surfaces when the outer closure is rotated in the removal direction. The panel of the outer closure member is resiliently deformable to bring the noncamming surfaces of the lugs into engagement for removal of the closure.

Abstract: A method of forming a blowback cavity in a vial or similar cylindrical article comprises the steps of providing a cylindrical glass preform having a necked region and first forming an open blowback cavity adjacent the necked region and a relatively thin axially projecting terminal lip on the adjacent end of the preform and subsequently turning the terminal lip inwardly to form a radially extending face defining a mouth opening having a diameter smaller than the diameter of the blowback cavity.

Abstract: There is disclosed a thin layer chromatography device comprising a transparent tube, a coating of adsorbent on the inside of the tube to provide a thin chromatography layer, one end of the tube narrowed down to form a neck with a score line thereon for breaking the neck, the other end of the tube being sealed to provide a hermetically sealed chromatography device, there being at least one small opening in the tube near the neck end of the tube for providing means to insert a sample into the tube on the thin chromatography layer and for providing means to form an air vent to the inside of the tube when the neck end is broken and placed in a solvent.

Abstract: A registration control circuit for a printed label cutoff machine controls both the location of the cut by performing a phase adjustment and the length of the individual labels by performing a base speed adjustment. A strip of labels have eyemarks printed thereon for defining the location at which the individual labels are to be cut. An optical scanner is positioned adjacent the labels and generates a scanner pulse upon detection of an eyemark. The control circuit includes a setup control for automatically running the machine into registration from an initial setup position. The setup control functions to generate a reference pulse a predetermined distance before the scanner is expected to see an eyemark. When the eyemark is detected within a designated window area the control utilizes the scanner pulse and the reference pulse to calculate the phase error for each label and generate a phase correction signal proportional to the actual phase error.

Abstract: The present invention relates to an apparatus and method for generating a comparison signal representing the magnitude difference between two successive video signals representing adjacent inspection points on the container. One of the two video signals is multiplied by a first predetermined value to generate a first product signal. The first product signal and the other one of the two video signals are combined to generate a second product signal having a magnitude representing the ratio between the other one of the two video signals and the first product signal with the first product signal as the denominator. A signal having a second predetermined value is then subtracted from the second product signal to generate the comparison signal. A comparison signal generated in this manner is insensitive to general light variations across the container.

Abstract: Disclosed are copolyesters based on terephthalic or isophthalic acids, or both and at least one of 1,3 bis(2-hydroxyethoxy)benzene and bis(4-.beta.-hydroxyethoxyphenyl) sulfone, which also contain 1,4 bis(2-hydroxyethoxy)benzene as one of the diol reactants in order to prepare solid copolyesters having improved folding endurance or fatigue resistance than the same copolyesters without such coreactant.

Abstract: A package comprising a container and a molded plastic closure. The container neck has external threads formed thereon and an external frustoconical sealing surface formed above said threads and extending upwardly and radially inwardly. The closure comprises a panel and an integral depending annular skirt, the skirt having integral internal threads formed thereon complementary to the threads on the neck of the container. An integral annular side sealing rib extends radially inwardly from the inner surface of the skirt and engages the external frustoconical sealing surface of the container in an interference fit such that when the closure is threaded on the container, the rib is compressed into sealing relation with the external frustoconical sealing surface. The panel portion of the closure includes a portion adapted to engage the end of the neck of the container to form a top seal. The closure includes a flexible annular wall integrally connecting the periphery of the panel and the sealing rib.

Abstract: This invention relates to rigid solid-lubricant composite materials which are extremely heat and wear-resistant and are moldable and thermosetting when molded to shape for handling hot glass articles. The composition is comprised of an organic silicone resin having chopped glass fibers and a finely-ground graphite-containing material therein. The composition may be molded to shape by compression or transfer molding into conveyor parts, for example, for handling newly-formed hot glass articles without marring their surfaces.

Abstract: There is disclosed a thin layer chromatography device comprising a transparent tube having a first open end adapted for sealing with a stopper, a cylindrical member such as a tube or rod having a diameter smaller than the tube and of a length at least about equal to that of the tube, the member adapted to fit concentrically within the tube, the outside surface of the member being adapted to receive a thin layer of adsorbent before assembly of the member inside the tube, a fitting at the first end of the tube, the fitting having an annular portion defining an opening adapted to receive and hold the member when the tube and member are assembled together to provide a hermetically sealed device before use, at least one sample positioning opening in the tube whereby, upon use of the device, a sample can be positioned on the outer surface of the member and whereby air can enter the interior of the tube.

Abstract: Apparatus for taking newly formed glass containers from a blow mold and transferring the containers to a dead plate wherein the take-out tongs for engaging the containers are mounted on a pair of holders that are pivoted like scissors relative to each other. A piston motor is pneumatically driven in one direction to cause the tongs and holders to close, and a spring, urging the piston in the opposite direction effects the opening of the tongs. When the tongs are open, the connection between the piston rod and the holders is a toggle linkage when the links are in a straight line preventing "winking" movement of the tongs toward closing by the fact of the toggle arrangement. Thus machine air closes the tongs and a fairly light spring force opens them.

Abstract: The disclosure relates to a three cell divider for a rectangular corrugated box which may be fabricated from a single sheet of corrugated board by cutting and scoring operations thereon, and then erected for insertion in the box. The divider comprises a horizontal bottom portion having two panel portions integrally secured to opposite sides and opposite ends of the bottom portion and respectively foldable into an upright, horizontally U-shaped configuration, thus defining two divider walls and four walls abutting the box walls. Projecting tabs on the free ends of two of the abutting walls engage notches in opposed corners of the horizontal bottom portion to maintain the divider in its erected position.

Abstract: Disclosed is a method of evolving B.sub.2 O.sub.3 from certain B.sub.2 O.sub.3 containing glass-ceramics by heating the glass-ceramic in the pressure of helium as a carrier or transport gas.

Abstract: A snap on child resistant closure has a radial port which may be aligned with a radial port on a cooperating container neck to allow dispensing of granular or pulverulent contents. The closure has a flexible annular skirt provided with a plurality of inwardly projecting lugs. Cooperating outwardly projecting lugs on the container neck normally prevent rotation of the closure to the angular position of alignment of the radial ports. The flexible annular skirt must be squeezed and distorted to disengage the lugs, thereby permitting alignment of the ports.

Abstract: A control system for a glassware forming machine determines the machine speed in accordance with the physical characteristics of the molten glass and the type of glassware being formed. The control system is loaded with timing data representing predetermined forming steps and a machine cycle speed and a control program for generating control signals to the machine forming mechanisms for forming the selected type of glassware. As the machine is operated, one or more physical characteristics of the molten glass entering the machine are sensed and utilized by the control system to adjust the machine speed to an optimum value. The control system also can utilize signals representing the operation of the forming mechanisms to adjust the timing within the machine cycle.

Abstract: In the method of making hollow glass articles wherein the article is subjected to an operation such that glass particles are deposited and held on the interior of the glass article, the method of removing such particles which comprises contacting the glass article with a resonator of an ultrasonic generator system and subjecting the article to ultrasonic vibrations from the ultrasonic generator.