Abstract: A method of lighting to protect sea turtles comprises providing in a housing both a white light source, for example a low-voltage incandescent source, and a red LED source that is visible to humans but that does not interfere with the normal nesting and hatching behavior of sea turtles, and selectively energizing the latter source during turtle nesting season.

Abstract: A system and method for chemical process design and process scale-up. In all embodiments, the system includes a mechanism for development of process topology for at least one chemical reaction, with the at least one chemical reaction comprising a recipe. In one embodiment, the system further includes a language handler for entry of the recipe. The language handler accepts textual information in free form for representation of the recipe. Such free form textual entry reflects the actual, or natural, language, used by chemists to describe laboratory processes, and is therefore very efficient and easy to use. In another embodiment, the at least one chemical reaction comprises a recipe for synthesizing at least one chemical product. The system also includes a mechanism whereby the development of the process topology includes the identification of one or more types of equipment necessary to manufacture the at least one chemical product using the recipe.

Abstract: A rewinder includes a lockout cam for controlling the actuation of transfer pins and transfer pads on the bedroll of a rewinder. The transfer pins and transfer pads are mounted on a rotatable pin shaft and a rotatable pad shaft, respectively. A cam follower assembly on the pin shaft is engageable with a pin cam for controlling movement of the transfer pins. A cam follower assembly on the pad shaft is engageable with a pad cam for controlling movement of the transfer pads. The lockout cam is rotatably mounted relative to the bedroll. A first portion of the lockout cam is engageable with the cam follower assemblies for preventing the pin and pad cam follower assemblies from engaging the pin cam and the pad cam, respectively. A second portion of the lockout cam permits the pin and pad cam follower assemblies to engage the pin cam and the pad cam, respectively.

Abstract: A rewinder includes a lockout cam for controlling the actuation of transfer pins and transfer pads on the bedroll of a rewinder. The transfer pins and transfer pads are mounted on a rotatable pin shaft and a rotatable pad shaft, respectively. A cam follower assembly on the pin shaft is engageable with a pin cam for controlling movement of the transfer pins. A cam follower assembly on the pad shaft is engageable with a pad cam for controlling movement of the transfer pads. The lockout cam is rotatably mounted relative to the bedroll. A first portion of the lockout cam is engageable with the cam follower assemblies for preventing the pin and pad cam follower assemblies from engaging the pin cam and the pad cam, respectively. A second portion of the lockout cam permits the pin and pad cam follower assemblies to engage the pin cam and the pad cam, respectively.

Abstract: A tack for holding soft thin membrane-like materials such as roof shingles, roofing felt, or house wrap is produced in collated strips from a stock of band sheet metal. Each tack has a head and a shank lanced out of the head and bent out to leave behind a slot in the head. The shank of a given tack nests within the slot of an adjacent tack in a side by side relationship for collating in strips for use in a tacker tool. The production of the collated strips of tacks includes a progressive punch press operation wherein the stock of band sheet metal is indexed incrementally therethrough in a given indexing direction. At the extreme end of the progressive punch press operation, a completed tack is advanced to and through a collating operation in a given collating direction. In one example, the indexing direction and collating direction are arranged 135.degree. apart.

Abstract: A method and apparatus for transferring a web to a mandrel to form a coreless, convolutely wound roll which includes an enveloping roller, first and second mandrels, a transfer roller and a cutoff mechanism in the path of travel of a web to be wound, advancing a web in partial enveloping relation with the enveloping roller and toward the first mandrel, moving the second mandrel to a position adjacent the web, orienting the enveloping roller and transfer roller to positions defining a pocket with the second mandrel in the pocket to define a nip between the second mandrel and enveloping roller, rotating the transfer roller in a direction opposite to the direction of advance of the web, and severing the web to provide a leading edge portion.

Abstract: A composition of matter comprises trifluoromethanesulfonic acid on a solid support material which contains boron phosphate and/or boron sulfate. Preferred support materials are boron phosphate, boron phosphate-coated silica and boron sulfate-coated silica. The above composition is used as a catalyst for alkylating at least one C.sub.2 -C.sub.7 alkane (preferably isobutane or an isopentane) with at least one C.sub.2 -C.sub.7 alkene (preferably butene-2).

Abstract: A shelf display dispenser for packaged merchandise in which there are a plurality of display unit suitable for placement on a flat surface, each comprising an elongated base, a longitudinal slot formed in the base suitable to guide a pusher mechanism, an upstanding divider wall on one side only of the base, coupling elements at the outwardly facing side of the divider wall and coupling elements on the longitudinal edge of the base opposite the wall, the second-mentioned coupling elements being positioned and formed to mate with coupling elements on the outwardly facing side of a divider wall of an adjacent unit, whereby the plurality of units may be matingly interlocked by the first and second-mentioned coupling elements in side-by-side parallel alignment for placement on a surface.

Abstract: A process for preparing a polymerization catalyst useful for the polymerization of olefins is provided comprising contacting a metal dihalide compound wherein the metal is selected from Group 2 and Group 12 of the Periodic Table and a transition metal compound which is a hydrocarbyloxide of a transition metal selected from Group 4 and Group 5 to form a first catalyst component; contacting the first catalyst component with at least one organoaluminum precipitating agent, wherein at least at the commencement of this step, the temperature at which such contacting is carried out is greater than about 70.degree. C. to about 150.degree. C. to form a solid product, and contacting the solid product with an activating agent to form a catalyst. Other aspects of the invention provide a catalyst prepared by the above described method and a polymerization process employing the thus prepared catalyst.

Abstract: A composition of matter comprises trifluoromethane on a solid support material which contains boron phosphate and/or boron sulfate. Preferred support materials are boron phosphate, boron phosphate-coated silica and boron sulfate-coated silica. The above composition is used as a catalyst for alkylating at least one C.sub.2 -C.sub.7 alkane (preferably isobutane or an isopentane) with at least one C.sub.2 -C.sub.7 alkene (preferably butene-2).

Abstract: An RF circuit includes an RF power divider circuit having an input port and a plurality of output ports the RF power divider circuit providing in response to a signal fed to the input port an output signal at each output port each output signal having known amplitude and known phase. The RF circuit further includes means for selectively coupling at least a portion of a signal fed to an input port of the RF circuit to the input port of the RF power divider circuit and a like plurality of directional coupler circuits each of the coupler circuits having an input port and a coupled port with each input port coupled to a corresponding one of the plurality of output ports of the power divider circuit and each coupled port corresponding to an output port of the RF circuit.

Abstract: A display comprising a package pusher operated by coiled springs and slidable along guides to push packages forward on a shelf. The guides are adjustably laterally movable in a feed structure to accommodate packages of varied size. The feed structure includes front and rear brackets connected to each other and/or securable to a display shelf. In one embodiment, the structure connecting the brackets is provided with breakaway portions to customize its length.

Abstract: A filter circuit includes a first pair of RF propagation networks disposed to provide a first coupled line section having a first electrical pathlength at a first frequency, means for providing a signal path between an input port of the filter and the first coupled line section and a second pair of RF propagation networks disposed to provide a second coupled line section having a second different electrical pathlength at the first frequency with a first one of the first pair of RF propagation networks coupled to a first one of the second pair of RF propagation network. The filter circuit further includes a third pair of RF propagation networks disposed to provide a third coupled line section having a third different electrical pathlength at the first frequency with a second one of the second pair of RF propagation networks coupled to a first one of the third pair of RF propagation networks and means for providing a signal path between the third coupled line section and an output port of the filter.

Abstract: A timing delay circuit includes a first transistor having a control electrode coupled to an input terminal, a reference electrode coupled to a first DC bias terminal and an output electrode coupled to an output terminal of the timing delay circuit. The timing delay circuit further includes a second transistor having a control electrode coupled to the input terminal, a reference electrode coupled to a second DC bias terminal and an output electrode. The timing delay circuit further includes a third transistor having a control electrode coupled to the output electrode of the second transistor, a reference electrode coupled to the second DC bias terminal and an output electrode coupled to the output terminal of the timing delay circuit.

Abstract: The infrared dual beam hydrogen fluoride (HF) gas detector comprises a light source for generating a light beam, a reference filter which passes light at a wavelength in the infrared range, such wavelength light being highly not absorbed by HF gas, an HF sensing filter which passes light at a wavelength in the infrared range, such wavelength light being highly absorbed by HF gas, structure for directing the light beam through a space containing vapor under investigation and alternately through each filter, a first sensor for sensing the light transmitted through the reference filter and for generating a first signal, a second sensor for sensing the light transmitted through the HF sensing filter and for generating a second signal, first circuitry for demodulating and amplifying the first signal generated by light transmitted through the reference filter, second circuitry for demodulating and amplifying the second signal generated by light transmitted through the HF sensing filter, and a comparator for compari

Abstract: A wastebasket includes a container having a top opening, and a lid mounted on the container and adapted to pivot about a pivot axis to cover and uncover the top opening. A mechanism for actuating pivotal movement of the lid with respect to the container is provided. The mechanism includes a generally horizontal operating lever having a foot pedal, a depending flange joined to the lid, and a rod linkage interconnecting the operating lever and the flange. The lid flange has an elongated slot formed through its thickness. The slot includes a channel and two enlargements situated at opposite ends of the channel. The rod linkage slides through the channel into one of the two enlargements, and engages the lid flange at either enlargement to pivot the lid between positions covering and uncovering the container.

Abstract: A rigid waste container having a bottom and walls and a peripherally depending rigid shift for offsetting the bottom of the container from a support surface. The skirt has one or more spaced orifices and affixed to the underside of the bottom of the container is a ratchet bar. A holder for a package of waste container liners is mounted on the side of the container. The holder includes a pawl arm, an upright member joined to the pawl arm and a pawl escapement tooth formed on the pawl arm. The holder is located through the orifice of the skirt so as to be in slideable engagement with the ratchet bar. This arrangement is adapted to receive a supply package of liner bags located between the upright member and the wall of the container. The supply package is of sufficient resiliency so as to permit locking engagement of the package between the upright member and the container. The holder is formed of one piece construction and is flat prior to assembly.

Abstract: The method for detecting leaks in an above ground storage tank includes the step of first determining the level of water in the tank by establishing, in a container lowered into and resting on the bottom of the tank, a clean interface between water and a liquid hydrocarbon product in the tank which has entered into the container. Preferably the method includes an initial step of inserting a predetermined amount of water into the container before lowering the container into the tank. The method also includes sensing changes in conductivity along a line intersecting an interface between the liquid hydrocarbon product in the tank and water in the tank with a leak detector in a casing and establishing a clean interface in the leak detector to prevent debris at the interface in the tank from fouling the sensing of changes of conductivity.

Abstract: An interface determining device includes a casing positioned in an above ground storage tank and apparatus is provided for establishing a clean interface in the casing between the liquid product in the tank and water in the tank. Also, a leak detector including a sensor assembly comprising an array of conductivity sensors for sensing conductivity mounted in a casing is positioned at the bottom of an above ground storage tank. Apparatus is provided for establishing a clean interface between the liquid product and water within the casing. The casing in the interface detecting device or the leak detector casing is completely enclosed except for an opening in the top of the casing for the entry or escape of liquid product into or out of the casing. The apparatus for establishing a clean interface includes a normally closed water inlet/outlet system at the bottom of the casing and a mechanism for opening and closing the water inlet/outlet system.

Abstract: The method for detecing leaks in an above ground storage tank by sensing changes in conductivity along a line intersecting an interface between the liquid product in the tank and water in the tank with a leak detector includes the step of collecting magnetic metal contaminants to prevent magnetizable particles from fouling the sensing of changes of conductivity.