Abstract: A novel transition through a wall separating a hazardous area from a less hazardous area is provided for an electrically traced, insulated conduit. The transition provides continuity of heating and insulation for the conduit while providing electrical isolation between the hazardous and less hazardous areas. The transition also provides mechanical support and protection and allows simple installation of the traced conduit through the wall.

Abstract: A bland, nutritive, water-retentive soybean flour, concentrate, or other food product is produced by a process involving heating soybean material under superatmospheric pressure and in contact with alcohol and water and/or their vapors while permitting continuous escape of vapors.

Abstract: A holding construction for a detachable connection of a tooth tip having a sleeve-shaped section and a cutting edge to a holder connected to a digging implement, according to which the holder is provided with a holder opening having a somewhat trapezoidal cross section and being substantially parallel to the cutting edge while the longitudinal central plane of the holder opening substantially coincides with the longitudinal central plane of the holder. The tooth tip forming a part of a dredge tooth is connected to the holder by a connecting element arranged in the holder opening and extending parallel to the cutting edge of the digging implement and located in the central longitudinal plane of the holder. The connecting element detachably arranged in the sleeve-shaped section comprises a wider and a narrower metal part and a compressible elastomeric element, e.g. a rubber element, interposed between the two metal parts.

Abstract: An aqueous plating bath for the electrodeposition of a zinc coating on a substrate is disclosed and comprises zinc ions, and an amount, sufficient to provide a level zinc electrodeposit, of one or more bath-soluble leveling phosphorus cations having the formula:R.sub.4 P .sym.wherein each R is independently a hydroxy alkyl group. Baths are also described which contain, in addition to the phosphorus cations identified above, at least one nitrogen-containing compound obtained by reacting (a) ammonia, an aliphatic amine containing at least one primary amine group, or mixtures of two or more of any of these with (b) one or more epihalohydrins, glycerol halohydrins, or mixtures thereof, and at least one thiourea having the general formula:[R'.sub.2 N].sub.2 CSwherein each R' is independently hydrogen or an alkyl or alkenyl group. Methods for electrodeposition of level zinc deposits from such baths and additive compositions for preparing and maintaining the baths are disclosed.

Abstract: The present invention provides an ammonia-free acid zinc plating bath for electrodepositing bright zinc on a substrate in which the zinc deposit produced thereby is ductile and presents a glossy to bright coating on the substrate over a wide cathodic current density range. The ammonia-free acid zinc plating baths of the invention comprise zinc ions, chloride ions, at least one polyoxyalkylated naphthol, at least one aromatic carboxylic acid or bath-soluble salt thereof, and at least one anionic aromatic sulfonic acid or bath-soluble salt thereof. In addition to the above components, the ammonia-free acid zinc plating baths of the invention may contain at least one nonionic polyoxyethylene compound and at least one aromatic aldehyde, ketone, or mixtures thereof. The ammonia-free acid zinc plating baths of the invention are free from significant amounts of complexing agents that would impede the removal of zinc ions from the baths prior to disposal.

Abstract: A printing ink which rapidly dries under the influence of heat, in particular from infra-red radiation, and which is composed of:A non-polar solvent,A modified phenol- or cresol formaldehyde resin,A crosslinkable unsaturated polyester,A peroxide catalyst for said polyester, andA pigment.

Abstract: A defecting or cut off saw inludes a support for boards and a transversely movable rotating saw blade for cutting the boards to length or cutting away defects therein. The transverse movement of the saw blade is controlled by an electrical circuit, the operation of which is acutated by the simultaneous depression of a pair of spaced cycle switches. The control circuit includes a timing circuit permitting movement of the saw across a board only when both of the cycle switches have been operator actuated within a predetermined period of time of one another. The circuit provides infinite stroke control for returning the saw blade to its start position at any time when one of the cycle switches is released.

Abstract: A spool of thread, such as dental floss, is housed in a two-part shell or holder, preferably made of plastic. The floor on the bottom one of the shell parts includes a platform to provide a bearing surface for enabling rotation of the spool with a minimum of friction. The top of the upper shell part includes at least one finger which depends far enough to drag, with predetermined friction, against the top of the spool. This friction is sufficient to prevent a random unwinding of the spool and yet small enough to preclude any substantial impedance to the withdrawal of a desired amount of thread from the spool.

Abstract: A substantially fuel-free oxygen-generating composition consisting essentially of an alkali metal chlorate which may contain a small amount of perchlorate, in combination with a catalytic amount in the order of about 0.5 to 5.0% by weight of cobalt oxide.

Abstract: Apparatus for forming a seal between layers of a carton of thermoplastic coated paperboard material and the like wherein the thermoplastic material in the area to be sealed serves as the sealant and is activated to flow by frictional heat generated by a vibration welding horn and is then allowed to cool and set under pressure to form the seal between the layers. The carton first moves to an activating station wherein the layers to be sealed are engaged on opposite surfaces by a vibrating horn and a back-up means for a time sufficient to activate the thermoplastic material to flow. The carton is then carried to one or more clamping and sealing stations at a different location from the activating station with the thermoplastic material in the activated state. The layers to be sealed with the activated thermoplastic is then engaged on opposite surfaces by a pressure pad and a back-up means for a predetermined period of time to permit the activated thermoplastic to cool and set and form a seal.

Abstract: Novel portable shelter apparatus including a side portion which can be detached along three of its four sides and raised to a substantially horizontal position, an extendable floor portion that can be unrolled from its normal storage position to an extended floor position underneath the raised side portion, and side wall netting operable to interconnect the raised side and extended floor portions to provide, within an insect-proof environment, a substantially increased floor space and increased user visibility.

Abstract: A cut-off device for a horizontally moving continuous casting includes a carriage assembly carrying a cut-off torch mechanism and a clamping mechanism. The assembly is mounted for reciprocable movement on a rod-like track which is open-ended to permit fast removal of the assembly for repairs. When the assembly is clamped to the moving casting, it is carried along therewith while the torch cuts through the casting to form billets of desired length. The track is floatingly mounted to permit deviation from the vertical by the casting without adversely affecting the cutting operation. The carriage assembly is tiltable on the track to permit horizontal deviation of the clamped casting. The torch is operated by a cam having a drop-off portion which quickly returns the torch to starting position. Upon release of the clamping mechanism, a damped counter-weight automatically returns the carriage assembly to its initial position on the track.

Abstract: An adjustable drop nipple is disclosed for connecting a pendant sprinkler to a sprinkler system. The nipple includes outer and inner telescoped pipes with a gripping means therebetween which permits an adjustment of the telescoped relation of the pipes for a desired position of the pendant sprinkler below a drop ceiling.

Abstract: A resiliently flexible sealing element conformable to the face of a wearer is supported by and spaced from a mask body by a resiliently flexible web, the sealing element and web extending perimetrically around the open side of the mask body and the hinge web having a bead extending along the opposite sides and across the top of the mask for controlled buckling of the web in a manner mechanically loading the face engaging sealing element.

Abstract: The masonary or refractory material employed in the lining of blast furnaces has to be demolished, torn out, reconditioned, or replaced periodically, due to wear and deterioration of such material and the subject invention involves improved equipment or apparatus with respect to removing or delining this material.

Abstract: A zinc-silver oxide dry cell comprises a zinc anode, a silver oxide cathode, an immobilized body interposed between the anode and the cathode, and a metallic silver layer formed at least on the anode side surface of the cathode by reduction of silver oxide. Reduction of the siver oxide to form the metallic cathode layer on the cathode surface is effected by causing a reducing agent to contact with the cathode surface or by subjecting the cathode surface to a heat treatment, electrolysis or a mechanical force.

Abstract: An apparatus for the manufacture by foam molding of plastic products by first injecting into a mold solid plastic resin and then injecting a foamed plastic resin of the same basic composition as the solid plastic resin. The process and apparatus consisting of a single extruder and single injection chamber wherein the solid and foamed plastic resin are extruded and stored until shot into the mold by hydraulic pressure. Controls are provided for the correct amount of each type of resin to be extruded and stored and the process can be adapted so that the sprue portion of the product will be solid resin and by a simple addition, coloring may be added so that the basic resin, method or apparatus will not require changes.

Abstract: An automatic surface polishing system utilizing strips of material to apply polish to a finished surface and strips of material to subsequently buff that surface. Fabric strips are attached about the periphery of rotating drums. Polish is applied to the strips and is then applied by the strips to the surface and rubbed-in by intermittent contacts between the strips and the surface. The polished surface is caused to dry and is then buffed by additional dry fabric strips which make intermittent contact with the surface.

Abstract: Carton sealing apparatus for sealing a rectangular end closure of a thermoplastic coated paperboard carton by ultrasonic vibrations. The apparatus includes an anvil, or backup member, and an ultrasonic vibrating tool. The mandrel is received in the carton with the end closure to be sealed folded against the smooth end surface thereof. The ultrasonic vibrating tool engages the end closure on the opposite side thereof from the mandrel, and, when energized, generates heat sufficient to cause the thermoplastic coating of the paperboard to flow and weld the layers of the end closure together. Ribs project from the end surface of the vibrating tool to provide a sealing pattern of "bow-tie" configuration, the ribs having various heights with respect to the end surface of the vibrating tool to accommodate changes in the number of layers of paperboard at the different areas on the end closure.

Abstract: A variety of Kentucky bluegrass which exhibits good resistance to common lawn grass diseases including leaf spot, leaf rust, stripe smut and powdery mildew, has an attractive, rich, dark green color and a turf-type growth habit.