Abstract: A takeup reel for a combination hydraulic hose and electrical cable including a rotatable storage portion for taking up and paying out hose and cable, a stationary mounting member on which the storage portion is mounted for rotation, and a rotatable connector providing a fluid connection between hose stored on the storage portion and a supply of hydraulic fluid external to the reel. A brushless electrical connection is provided between cable stored on the storage portion and a supply of electrical energy external to the reel by an interface cable which may be coiled in either of reverse directions about the axis of rotation for the storage portion. A cable housing for the interface cable is joined to the storage portion for rotation therewith. The interface cable includes a plurality of flexible conductor elements.

Abstract: A single-acting, three-stage, four-section telescopic ram for use in conjunction with a triple-lift type mast in a lift truck. The ram features an extremely low overall length when fully contracted, thus affording good operator visibility. The ram also is capable of producing surprisingly "high-lift" despite its low contracted profile. Further, the ram features an internal construction that produces constant lifting and lowering speeds for a load, as well as providing for positive control over the sequence of movements of parts in and on an associated mast.

Abstract: A fluid control valve which operates accurately in response to the pressure difference that exists between a pair of ports in the valve. The valve features a spool which is normally biased to one control position wherein it remains with the sensed pressure difference being below one preselected amount. The spool shifts rapidly to another control position on the sensed pressure difference exceeding this amount. In this other control position, the spool remains until the sensed pressure difference drops to another preselected amount which is significantly lower than the first-mentioned preselected amount. On this latter event occurring, the spool returns to its first-mentioned control position.

Abstract: A hollow resin bonded glass fiber column of unique cross section suitable for use as a utility pole, light standard or the like is disclosed including unique means for forming the pole. A rotatable finned mandrel is wrapped with a waxed surfaced paper and then sprayed with a mixture of chopped glass, resin and catalyst which is initially pressed thereon by a roller and then wrapped with continuous bands of fiberglass roving, re-rolled, covered with a fiberglass veil, rolled again and allowed to cure. The finned mandrel which makes relatively thin line contact with the inside of the pole and the wax surfaced paper allows the curved pole to be easily slipped endwise from the mandrel. In one embodiment a metal mandrel having eight radially extending fins has been successfully used to form fiberglass poles of octagonal cross section.

Abstract: Mixtures of oxalic, meso tartaric, glyoxylic and erythronic acids derived particularly from the oxidation of cellulose derivatives are separated from aqueous solutions in which they are contained and from each other by stepwise precipitation with calcium ion at controlled pH. The oxalic acid is precipitated as calcium oxalate at a pH of 0.9 to 2.0; the tartaric acid as calcium meso tartrate at a pH of 2.8 to 4.4; and the glyoxylic acid, as calcium glyoxylate at a pH of 4.5 to 5.4. After each precipitation the water insoluble precipitate is separated from the aqueous mixture in which it is contained. The relatively soluble erythronic acid remains in solution as a free acid, or in the form of its calcium salt.

Abstract: A load-clamping apparatus wherein the loaded and unloaded condition of the clamping arms (respecting their contacting an external body) is automatically sensed, and used to determine the type of fluid connections which exist at any given moment between fluid motors that move the arms. With the arms moving toward one another, so long as the movement of neither arm is hindered by an external body, a series connection exists between the motors producing relatively high-speed low-power relative movement between the arms. When such hindering occurs, a parallel connection is produced which results, during clamping, in lower-speed higher-power relative movement between the arms.One embodiment of the invention takes the form of apparatus capable simply of producing relative movement between clamping arms toward and away from one another to clamp and release a load. Another embodiment enables this action, plus reversible, common-direction side-shifting of the arms.

Abstract: A truss stacking apparatus is disclosed which includes means for lifting successive horizontally disposed trusses off of a conveyor and for stacking the trusses in a generally upright orientation on a stacking skid. Guide means are disposed in the conveyor path for contacting the angularly arranged top chords of successive trusses to effect lateral shifting of the trusses toward lifting positions in which the trusses are lifted from the conveyor onto the skid. SUBACKGROUND OF THE INVENTION1. Field of the InventionThis invention relates generally to handling equipment for wooden structural truss members, and more particularly to apparatus for raising horizontally disposed truss members off of a conveyor and for stacking the trusses in a generally upright position on a stacking skid.2. Description of the Prior ArtPrefabricated wood building components, such as roof and floor trusses, are used extensively in the building industry today, particularly for residential construction.

Abstract: An easy-open composite container is disclosed having an unbonded helical butt joint that extends the length of the container, characterized by the provision of an impervious inner liner layer having a helical folded portion which is coextensive with and extends the length of the unbonded butt joint. A peelable outer reinforcing or wrapper layer bonded to the outer surface of the fibrous body wall layer normally holds the edges of the butt joint together. Upon removal of the outer reinforcing layer, the ends of the container may be twisted in opposite directions to open the unbonded butt joint and to expand and rupture the inner liner layer folded portion. In the case where products under pressure, such as refrigerated dough products, are packaged in the container, upon removal of the outer reinforcing layer, the products expand to automatically open the butt joint and to expand and rupture the inner liner folded portion.

Abstract: A container blank is disclosed for forming a carton having bottom, side and end walls, and top flaps connected with the side walls, said top flaps having locking tabs adapted for insertion within locking slots contained in fold line means at the upper edges of the end walls. Each locking tab is folded to define inner first and outer second tab portions, said second tab portion being adapted to resiliently expand outwardly to a position in which the free extremity thereof extends into a locking recess contained in the end wall. To release the second locking tab portion, an object such as the user's finger is inserted into a releasing aperture contained in the end wall to displace the second locking tab inwardly, thereby to permit opening of the container top flaps.

Abstract: An assembly of a patch top container end and a reusable circumferentially-flanged closure member is disclosed, together with a method for forming the container end and introducing the same within the closure member, characterized in that the container end includes a circumferential tab portion which is folded back through an angle of 180.degree. to a position between the body portion of the container end and the body portion of the closure member. The closure member is then mounted on the open end of a container with the closure member flange extending about the container, the container end being bonded to the extremity of the container end by a temperature or pressure responsive material.

Abstract: There is provided a circuit which may be connected across the signal path on either the input or the output of an amplifier and which is designed to distort the signal in a manner which is complementary to the distortion contributed by the amplifier so that the resultant signal is to a large degree undistorted. The circuit utilizes a diode connected across the signal path of an amplifier with means for preventing the flow through the diode of direct current voltages appearing across the signal path. Means are provided for forward biasing the diode. The diode is selected to be of the type to have characteristics suitable for operation above 50 MHz. The diode is also selected, along with the degree of forward bias and reactive elements to provide the required compensation.

Abstract: A suspension box member for use as a base or platform of a shipping container is disclosed. The suspension box is made of fiberboard or other material which deflects to absorb shock and other forces which would otherwise be transmitted directly to the item being shipped. The suspension box is of relatively simple design, thus making it easily adaptable for use with various types of covers for the shipping container. Such covers may be in the form of a box with an open bottom, a slotted telescope cover for rectangular items or various form-fit covers, the latter being particularly suitable for upholstered chairs.

Abstract: An improved end seam construction for composite containers used in the packaging of hard to hold materials, such as materials under vacuum or pressure. The composite tubular body wall member includes at least one fibrous layer to the inner wall surface of which is bonded by a thermoplastic adhesive a metal liner layer that projects axially at at least one end a given distance beyond the fibrous layer. The end of the fibrous layer is deformed radially outwardly to define a funnel-shaped flange about which the projecting metal liner layer is deformed and compressed. The length of the projecting metal liner layer is such that when the metal-lined flange portion is connected by a rolled seam with the flange, the metal liner layer is compressed into surface-to-surface engagement with at least one surface of the curl portion of the metal end.