Abstract: There is disclosed a preform handling apparatus for orienting and testing a plurality of preforms. The preform handling apparatus of this invention comprises an orienter, an inverter and a tester. The orienter of the preform handling apparatus comprises a base driving mechanism, a rotatable circular disc carried by the base driving mechanism and a retaining wall which extends substantially around the circumference of the disc. An inverter of the present invention comprises two juxtaposed semicircular plates adapted to receive a preform in an upright position and to rotate the preform 180.degree. such that the preform is discharged from the inverter in an inverted position. A tester of the present invention comprises a hub subassembly and a star wheel subassembly for moving preforms along an arcuate path and further comprises a gage subassembly, a cam and a bridge subassembly for detecting defective preforms and preventing defective preforms from being processed into a final product.

Abstract: Cooperating male and female track assemblies associated with otherwise conventional pickup truck body open beds and covers or canopies so that a cover or canopy may be easily alid onto and off of the truck body bed. The male and female tracks have a variety of cross-section configurations and one or the other or both of the tracks have an elongate channel formed in an exposed surface through which conventional headed fasteners are inserted with the fasteners heads received entirely within the channel or channels so that any interference fit between the tracks is prevented and the hitherto requirement for countersunk fasteners is eliminated.

Abstract: For water-treatment in swimming pools, cooling towers, hot tubs, and other systems, it is desired to feed various chemicals in small quantities but at optimum rates into the system. In several embodiments of the invention the water is recirculated through the system which usually includes a filter. It has been discovered that the chemicals can be fed by enclosing them in generally spherical plastic capsules suggestive of table tennis balls, but about the size of a base ball. The rate of feeding depends upon the size and number of small holes which are provided, or the user pokes through the shell of the capsule, upon the solubility of the chemical, and upon the flow rate of the water through a strainer, skimmer, or other chamber in the system into which the capsule is introduced. The random orientation of the capsule tends to average out variations.

Abstract: A magazine charger having a body with a spring and an open end for receiving a magazine to be charged with cartridges. The body of the charger also has a closed end opposite the open end. The charger is equipped with a plunger axially, slidably carried by the closed end of the body. The plunger is adapted to move cartridges against the magazine spring. The charger also has a plunger spring which biases the plunger away from the open end of the charger. The plunger is operable to sequentially depress the uppermost cartridge, facilitating feeding of the cartridges to the magazine.

Abstract: This invention relates to a method for the manufacture of an abrasive material by means of a synthetic binder based on a mixture of phenolic resins. The phenolic resins employed have a great stability in storage, its curing times are at most equal to but preferably shorter than those commonly used, therefore higher production speeds or substantially smaller drying installations for the same production speed may be used. The binder contains only small quantities of free formaldehyde, phenol and especially formaldehyde are released in substantially reduced quantities to the environment even when the binder is heated to elevated temperatures, including temperatures above the processing temperature. The release of these substances is also considerably reduced when the abrasive material is subsequently used.

Abstract: An improved process for preparing pulverulent coating compositions pigmented with titanium dioxide and based on polyamides having at least ten aliphatically bound carbon atoms per carbonamide group using the precipitation method. The titanium dioxide pigments used are without nucleating effects or only have weak nucleating effects on the polyamide precipitation. The pigments have nucleating effects less than or equal to 3.degree. C. where .DELTA.T=(T.sub.max p)-(T.sub.o). T.sub.max p is the maximum temperature at which precipitation takes place in a solution of polyamide having pigment therein and T.sub.o is the maximum temperature at which precipitation takes place in polyamide solution having no pigment therein.

Abstract: Coating powders for the melt film coating method, based on polyamides and adhesion improving additives. The polyamides are aliphatic homo- and/or copolyamides having at least six carbon atoms containing functional groups consisting of at least 80% of primary, secondary, or mixtures of primary and secondary amino groups. As the adhesion improving additive there is added from 0.1 to 10% by weight referred to the polyamides of an isophoronediisocyanate capped with lactams, an isophoronediisocyanate capped with acetonoxime or an isophoronediisocyanate capped with an oligomer of acetonoxime.

Abstract: The present invention is a process for preparing lactams having 8 to 15 carbon atoms by the Beckmann rearrangement of the corresponding oximes in a solution of an organic solvent by means of 0.5 to 10% by weight referred to the oxime of an acid derivative acting as a catalyst. The anhydrides of organic sulfonic acids or of sulfuric acid half esters or mixed anhydrides of organic sulfonic acid and anhydrides of sulfuric acid half esters are used as the catalysts.

Abstract: The invention concerns a lock for doors or windows, with two latches each pivoting about a pivot pin being provided in the one component and of which the mutually facing ends in the locked position engage in mutually opposite directions an undercut surface of a locking bolt mounted on the other component, this locking bolt cross-sectionally being a wedge-shaped or conical tip by means of which the two latches can be forced apart against the opposing force of a spring, this lock being designed so that unauthorized forcible opening in the absence of a key is at least made appreciably more difficult.

Abstract: According to the present invention there is provided a process for producing a low viscosity, stable coal-water fuel slurry by controlling the concentration of soluble inorganic salts in the coal-water fuel slurry. The process of the present invention comprises determining the soluble ion content of a coal; treating the coal to control the soluble ion content thereof by removing soluble ions from the coal or adding a soluble inorganic salt or electrolyte to the coal; and admixing the coal with a dispersant, a base and water to produce a coal-water fuel slurry comprising 60-75% by weight coal and having a total hardness of 100 ppmc to 1000 ppmc, preferably 200 ppmc to 600 ppmc, expressed as Ca.sup.2+ ion concentration.

Abstract: The invention concerns an improved precipitation process in the manufacture of coating powders based on polyamides having at least ten aliphatically bound carbon atoms per carbonamide group. Rapid cooling takes place with stirring mainly by distilling the ethanol solvent until the temperature of precipitation is set in the range from 90.degree. to 113.degree. C. With the beginning of the saturation limit (about 125.degree. C.), the temperature difference between the coolant in the jacket and the solution inside is maintained at most at .+-.3.degree. C. The solution is maintained during the precipitation stage at constant temperature (isothermal procedure) by further distillation of the ethanol.

Abstract: Polyamide based coating powders having a practically uniform grain size distribution are prepared employing the precipitation procedure provided that the polyamide is dissolved in ethanol at 127.degree. to 135.degree. C. and that the solution is cooled while distilling the ethanol in such a manner that the reactor jacket temperature does not drop below the temperature of the reactor contents until the end of the precipitation stage.

Abstract: A safety circuit for a window lift driven by an electric motor is described which causes a reversal in the direction of rotation of the drive motor when the window pane impinges on an impedance in its upward motion. The reversal criterion used is the motor current surge familiar to the state of the art. The circuit of the invention is characterized in that upon actuation of the "close" window key, the drive motor first rotates briefly in the direction of opening and thereby displaces the window pane downwardly, whereupon it is automatically reversed and only then does the pane motion toward the closed position begin. Consequently, the motor start-up peak current decays in that range of displacement of the window pane which is below its initial position, whereby an increase in current (di/dt) after resuming the initial position of the window pane at once causes motor reversal.

Abstract: A reading stand or holder including a base with a transversely slotted upper surface, a rear, flat background plate in one of the slots for supporting material, such as a book, in an upright, open position, a placement bar in a slot in front of the open book for maintaining open the pages of the open book, and a transparent, flat magnifying panel in one of a number of grooves in front of the open book for magnifying the matter to be read. The further the magnifying panel is from the open book, the greater the degree of magnification. The magnifier stand is particularly useful for following a recipe in a cookbook while cooking. The stand may be seated on a wedge block to tilt the stand or mounted on a swivel, lazy Susan base, to facilitate reading the material. Another, smaller version of the magnifier stand may be used within or on top of a conventional index card box, for reading the cards.

Abstract: A heat-hardenable binder mixture based on organic resins comprises an organic resin having primary and/or secondary and, if appropriate, also additional tertiary amino groups and a crosslinking agent based on an organic compound which contains at least 2 .beta.-hydroxyalkyl ester groups. The binder mixture can additionally contain pigments, fillers, crosslinking catalysts, corrosion inhibitors and other paint auxiliaries. The binder mixture is used in a process for preparing coatings by applying a coating agent in the form of a film to a substrate and subsequently hardening the film by stoving.

Abstract: The invention relates to binders for cathodically depositable coating compositions for the electrocoating lacquering process using cationic synthetic resins, which binders have been obtained by polymerizing (A) 5 to 95% by weight of ethylenically unsaturated polymerizable monomers in the presence of (B) 95 to 5% by weight of a cationic synthetic resin in an aqueous phase, the total amount of the components (A) and (B) being 100%.Esters of acrylic acid and/or methacrylic acid are preferable for use as component (A). The invention also relates to a process for preparing the binders and to their use for cathodically depositable electrocoating lacquers.

Abstract: In order to be able to execute the commercial production of fitted elastic bedsheets from a strip of cloth, markings are applied to the strip of cloth, which determine the attachment points for stretched elastic bands, the transverse cutting lines on the strip of cloth and the seams at the corners of each piece of cloth to be cut from the strip of cloth. The stretched elastic bands are sewn on or in the edges of the strip of cloth, while the strip of cloth is being moved in the lengthwise direction and is held in a flat state. Then individual pieces of cloth are cut from the strip of cloth. The stretched elastic bands then are sewn on or in the two edges of the pieces of cloth being moved transverse to the length of the strip of cloth, which corresponds to the cut edges. With this sewing process, the pieces of cloth are likewise held in a flat state.

Abstract: For use with a window boot joining in sealing relationship the aligned window openings in a camper, cap or canopy truck combination, the window boot having a semi-rigid compressible end construction, a frame assembly mounted about at least one of the window openings, preferably the camper window on the exterior thereof, which receives the window boot end in sealing relationship so that the otherwise conventional sliding windows of the window opening may be opened and closed with the boot end in place. The frame may be placed over an existing window opening or be made an integral part of the window. A pair of opposed, inverted J-shaped channels receive the boot end which includes opposed, telescopic, U-shaped legs spring urged to an expanded configuration.

Abstract: The invention relates to the moulding of dough pieces, for instance in the production of bread. In a dough moulding machine, there are pairs of sheeting rollers, which roll out the piece of dough into a sheet. In the method of the present invention the dough piece is caused to pass over a fluidized bed in its approach to a pair of sheeting rollers. Further, the dough piece may pass over a fluidized bed as it is transferred from one pair of sheeting rollers to a following pair of sheeting rollers.The invention also includes an arrangement for replacing the usual feed hopper of a dough panner by a conveyor, a fluidized bed and lateral locating devices for the dough piece.