Abstract: A high efficiency luminaire possessing high angle brightness control. Transverse high angle brightness control is provided by a substantially parabolically shaped reflector and longitudinal high angle brightness control is provided by a trough like lens assembly including a plurality of trough shaped lenses and screening means adjoining one another.

Abstract: Fiber glass insulation batts are packaged by delivering them to the bottom of a stack of batts, then compressing the stack with a compression plate or platen. The compressed stack is pushed by the platen against a web of packaging film and into a hopper. The web adjacent one side of the stack is then moved over the top face of the stack to enclose it, and is heat welded to the web adjacent the other side of the stack. The web is severed intermediate the weld to separate the package from the web, leaving only a single weld in the package. The stack can be compressed by a dished platen to concentrate the greatest platen pressure at the periphery to avoid damaging the major portion of the surface of the batt contacted by the platen.

Abstract: A belt and pulley construction for use in a continuously variable power transmission arrangement. In one embodiment the conical working surfaces of the drive pulleys and the driven pulleys are comprised of removable segments formed of relatively erodable friction modifying material so that the conical pulley surfaces will wear away before the drive belt. In another embodiment the drive belt, whether comprised of a rubber compound or of metal, contains wear faces or pads which contain friction modifying material. Traction between the belt and the pulleys can thus be controlled by members other than solely through the tension of the drive belt.

Abstract: A new and improved mounting arrangement for electrical components in a luminaire in which the electrical components are mounted on an electrical plate which is detachably secured to a support plate with quick disconnect means being provided for detaching said electrical plate from said support plate.

Abstract: Insulation board feeding apparatus feeds successive boards from a pallet stack to a grooving machine to make pre-formed duct sections. The apparatus includes a cable driven elevator assembly, a reciprocating transfer carriage with a plurality of pivotable board-engaging fingers which is reciprocated by an air cylinder, and a guide assembly comprised of two non-driven rollers. The machine of the present invention is simpler, more reliable and less expensive to manufacture than its predecessors.

Abstract: A display carton for holding articles such as picnic plates and one or more different types of cups. The top and front panels contain cutouts which hold the cups in place and permit them to be seen in the display carton. The top panel is spaced from the back panel a distance permitting picnic plates to be held upright between them. An additional panel foldably connected to the back edge of the top panel extends down to the bottom panel and a short flap foldably connected to the additional panel extends to the back panel to frictionally hold the top panel in place.

Abstract: Interlocking end panel flaps of a carton having locking tabs containing diagonal fold lines allowing the wide toe portion of the tabs to fold back when inserting the tabs in locking apertures which are narrower than the width of the toe portion. Holding tabs connected to the aperture edge adjacent the location of the toe portions of the locking tabs extend completely across the width of the aperture in a straight line to better hold the locking tab in place.

Abstract: A two-piece beverage carrier is disclosed comprising a one-piece folded longitudinal partition insert which is adhesively secured to the end panels and to the bottom panel of a separate paperboard shell. The shell may be constructed as a wrap-around carrier or it may be constructed in the form of a basket style. The insert for either type of shell has formed thereon a plurality of transverse butterfly partition panels which also have formed thereon glue tabs for adhesively securing the butterfly partitions to the side panels of the paperboard shell. The insert utilizes a low caliber, single thickness of paperboard in formation of the production blank and by the structure and outline of the butterfly partition panels, heavier thickness is obtained between cells of the erected carrier.

Abstract: A refractory binder including a tackifying agent. The tackifying agent is a montmorillonite clay. The binder is a chromium alumina phosphate mixture with a fluxing agent. The binder may also be a colloidal suspension of alumina, silica or zirconia with montmorillonite clay. The binder is used with refractory fiber to produce a monolithic layer.

Abstract: A display carton for use with articles which cannot independently support themselves in an upright position. The carton is formed so that the back panel forms an angle greater than 90.degree. with the bottom panel to allow such articles to lean back against the back panel. The front panel may also be at the same angle. The bottom is formed from flaps foldably attached to the front, side and bottom panels which function to automatically form the bottom panel when a carton sleeve is opened into carton shape.

Abstract: An insulation suitable for application to building spaces by pneumatic devices comprising a multitude of small pieces of low density fibrous material, the fibrous pieces being uniformly sized and having a hexahedral configuration.

Abstract: A display carton for bulk items having a removable portion in the front panel and a front bin wall with attached side walls immediately behind the removable portion. The front bin wall is foldably attached to the bottom panel structure so that when it is exposed it can be pulled out to reveal the contents of the carton. An automatic bottom is incorporated into the structure, allowing a flat folded and glued carton blank to be opened into carton shape.

Abstract: The use of a bifurcated joint to attach a conveniently sized metal flange to a flexible bellows material has been widely used, for example, in the manufacture of a building construction expansion joint cover. The known bifurcated joint is formed by clamping and engaging a marginal edge of the bellows material between opposed folded portions of the metal flashing. It has been found that the attaching force provided by this joint can be enhanced by providing teeth or protrusions in a portion of the metal bifurcated joint. Preferably a punch is used to upset teeth from one surface of the joint, preferably a corrugated portion of the joint, and then bend the thus toothed and corrugated portion into clamping engagement with the marginal edge of the bellows. The toothed hole clampingly engages the bellows material without piercing it and prevents pull out, both prior to curing of the adhesive bond as well as thereafter.

Abstract: A combination shipping and display carton wherein the top panel is perforated adjacent one end to allow the top panel to be separated at the perforations and folded up about a fold line at its opposite end. Another fold line intermediate the ends allows the top panel to be folded upon itself so that it becomes a double thick display panel extending upwardly from the back of the panel. The carton is formed from a wrap-around blank including two top panel flaps which are overlapped to form the top panel. The top panel flaps are adhesively secured together in the overlapped area. Tuck flaps connecting the side and end panels are adhesively attached to the inner surfaces of the side panels.