Abstract: Trail line irrigation moves have split swivel couplers of which each has two identical halves rotatable on split bearing rings on an axle having seals thereon and coupled to pipe lengths by press-on or clamp-on connector portion. The axle has holes connecting the pipe lengths to the interior of the swivel halves, and the bottom half has a check valve drain and the top half has a cross connector with a sprinkler mounted on the top, a quick connect coupler cross-arms, a plug in one cross-arm and a trail line coupled to one cross arm. The trail line is connected by a quick connection coupler to a reversible skid shoe having a sprinkler riser and a drain plug.

Abstract: A holder for an embroidery needle has an elongated body divided into a forward needle-retaining portion and a rearward handle portion. The retaining portion includes a wall which forms a bed for receiving the handle portion of a needle and a narrow passageway extending forwardly from the bed for receiving the shank of a needle with the needle tip protruding from the forward end of the retaining portion. The bed has longitudinally spaced transverse grooves for receiving the projecting rim of a needle handle to prevent longitudinal movement of the needle relative to the holder. The groove selected for seating the rim determines the extent to which the needle tip projects from the forward end of the holder. The wall of the retaining portion is open along one side to provide access for inserting the needle into the bed and passageway. A cap slides over the retaining portion to enclose the bed and passageway and thereby retain the needle in its selected groove.

Abstract: A fly-tying vise has a vise portion for gripping a fly-tying hook supported by a vertical support post above a clamp portion for gripping the free edge of a tabletop. A jaw assembly of the vise portion has a pair of hook-clamping jaws opened and closed by a thumb screw. The jaw assembly cooperates with a spring-biased detent to allow rotation of the jaws without changing their closure setting through application of a combined axial and torsional pressure to the thumb screw. The clamp portion includes a sleeve slidably adjustable along the support post and a pair of clamping arms, one fixed to and the other slidable along the sleeve to adjust for different tabletop thicknesses. The slidable arm carries a thumb-screw-operated bearing disc which creates a bind between the slidable arm and sleeve to hold such arm in an adjusted position when the disc and fixed arm bear against opposed surfaces of a tabletop.

Abstract: Open top vehicles are dumped by an apparatus including a vehicle receiver having stanchions on either side supporting hold-down means for clamping the vehicle against the deck of the receiver. The receiver is pivotally connected along one side to bolsters which in turn are pivoted to rigid supports. Lift cylinders are arranged to rotate the bolsters about the support to elevate the reciever and vehicle thereon. Tilting cylinders are arranged between the bolsters and the receiver for tilting the latter about the bolster to effect tilting of the vehicle into a position wherein contents can dump from the open top thereof.

Abstract: Multiple cutting discs are fixed in spaced-apart positions on each of two side-by-side counterrotating shafts so that peripheral portions of the discs on each shaft extend into the spaces between discs on the opposite shaft. Each disc has a smooth cylindrical peripheral surface which meets opposed sidewalls at sharp continuous cutting edges. The clearance between adjacent discs on opposed shafts is small so that their cutting edges coact to shear material fed into the bight between opposed counterrotating discs in their feed-through direction. Removable infeed teeth project from the peripheral surface of each disc at circumferentially spaced positions to help feed material into the bight between opposed discs. Material shredded by the discs falls onto a slowly rotating screening drum encircling the disc assembly. The smallest shredded pieces pass through such drum onto a discharge conveyor.

Abstract: The specification discloses an improved irrigation line move in which a line mover carries an engine rotating an irrigation pipe supported by wheels keyed to the pipe. The engine also drives wheels of a cart-like carriage of the line mover through reversible one-way clutches. Each clutch includes a sprocket keyed to an axle keyed to cart wheels and a lever-like pawl held by a spring extending around the axle in either an only forward driving position relative to the sprocket or an only reverse driving position relative to the sprocket.

Abstract: A process for removing pollutants or minerals from lake, river or ocean sediments or from mine tailings is disclosed. Magnetically attractable collection units containing an ion exchange or sorbent media with an affinity for a chosen target substance are distributed in the sediments or tailings. After a period of time has passed sufficient for the particles to bind up the target substances, a magnet drawn through the sediments or across the tailings retrieves the units along with the target substance.

Abstract: Holographic lenses are formed on a substantially transparent scanning disc wherein a line focus is the object for each hologram. Such hologram is then used to reconstruct the line focus at the location of the record to be scanned, thereby alleviating tolerance requirements in regard to the positioning or flatness of the scanned record.

Abstract: A window construction includes longitudinally channeled framing strips of right angular cross section attached to the four faces of a window casing or to a storm door window opening. Boundary edge portions of a pane closing the window opening are attached to the framing strips by resilient angular bead strips. The pane may comprise either a flexible plastic membrane, a rigid or semi-rigid self-supporting sheet or screening. The bead strips include two long bead flange portions extending at generally right angles from a body portion and a short rib portion extending from the outside corner at the intersection between the two bead flange portions. The rib portion and one bead flange portion are squeezed into opposed grooves in the channel portion of a framing strip to compress the pane in position against at least one inside surface of the framing strip.

Abstract: A spark gap protector includes a gas tube spark gap device received in a supporting base. A failsafe device for permanently shorting the spark gap protector to ground after an extended discharge includes a spring biased cage and a solder pellet. An extended surge current fuses the solder pellet resulting in movement of the shorting cage to a failsafe, shorted condition. The cage normally grasps a conducting ring spaced from a shorting contact member by a thin insulating spacer defining an auxiliary gap thereacross. In case the spark gap device vents so as to become substantially inoperative, and the cage does not operate to short the device, the auxiliary gap provided backup protection at a breakdown voltage somewhat greater than ordinarily supplied by the gas tube spark gap device.

Abstract: A spray head apparatus having a liquid deflecting back plate which utilizes the Coanda effect to achieve a widely dispersed spray pattern is disclosed. The back plate is vertically movable and is positioned above and biased toward the upwardly facing open end of a vertical flow pipe so that the back plate rises as the pressure of a liquid inside the flow pipe increases.

Abstract: An anvil roll has a steel core and an outer portion of polyurethane. The roll is slightly rotated after a number of veneer clipping operations by a clutch which drives the roll after the roll is pushed by a knife down away from arcuate braking surfaces. An airbag normally urges the roll into engagement with the braking surfaces and is collapsed during adjustment of the roll. Operation of the clutch is prevented during the clipping operation. A double-acting cylinder drives the knife through a toggle joint linkage, and cushioning cylinder means aid in overcoming inertia of the knife at the start of a clipping cycle and also cushion the return of the knife. The cylinder has poppet check valves to rapidly admit air thereto.

Abstract: A method of completely coating a plurality of substrates with lead dioxide by electrolysis while the substrates are immersed in an electrolyte containing a lead salt. Each substrate has curved surfaces and is able to roll freely. The method comprises tumbling the substrates in a porous barrel rotating about a central anode feeder at a speed of three to eight revolutions per minute. Substrates contact the anode feeder throughout the electrolysis. The anode feeder is of a material that does not dissolve or passivate in the electrolyte under the reaction conditions during the electrolysis. The temperature during the electrolysis is maintained at less than 70.degree. C. A positive current is applied to the anode feeder to maintain an anode current density in the range 1 to 8 milliamps per square centimeter throughout the electrolysis. A negative current is applied to a cathode spaced from the anode.

Abstract: A package elevator for a ship includes a plurality of slotted or tined trays carried by pairs of forked followers pivotally attached to a pair of chains driven in unison in parallel endless paths with upper driving sprockets and lower idler sprockets. Each follower is keyed to a shaft journaled in a link of one of the chains, and has an inner follower arm and an outer follower arm. The arms carry follower rollers projecting into cam tracks which guide the rollers so that the trays are in return positions lying along the chains in a return course, project outwardly from the chains in an elevating course and are moved from one of these positions to the other as the trays are moved around the sprockets. The cam tracks include cam blocks having cam grooves therein which turn the follower arms and trays only 90.degree. relative to the chains as the trays are traveling around the sprockets.

Abstract: An athletic shoe of reduced weight is described employing low density, closed cell, synthetic plastic foam for an intermediate sole layer and/or heel lift sole layer between a harder outer sole layer and the shoe upper. The foam is a polyethylene or ethylene vinyl acetate foam having a density not substantially less than 5 pounds per cubic foot, preferably at least 7 pounds per cubic foot. A lateral extending heel stabilizer plate of solid plastic material or a heel lift layer having a relatively hard outer border portion may be added to improve lateral stability.

Abstract: An optical extensometer is described using sequentially pulsed light beams for measuring the dimensions of objects by detecting two opposite edges of the object without contacting the object. The light beams may be of different distinguishable light characteristics, such as polarization or wave length, and are time modulated in an alternating manner at a reference frequency. The light characteristics are of substantially the same total light energy and are distributed symmetrically. In the preferred embodiment two light beam segments of one characteristic are on opposite sides of a middle segment of another characteristic. As a result, when the beam segments are scanned sequentially across two opposite edges of the object, they produce a readout signal at the output of a photoelectric detector that is compared with the reference signal by a phase comparator to produce a measurement signal with a binary level transition when the light beams cross an edge.

Abstract: A method and apparatus are disclosed for drying materials by contact with a drying gas consisting essentially of internally generated superheated drying steam above 212.degree. F., to vaporize the water in the material and remove it to produce the steam used for drying. A minor portion of steam is removed from the drying gas and discarded to maintain pressure equilibrium. The drying steam is produced within the drying chamber from water evaporated from the material being dried and is either heated within the drying zone where it is in contact with the material or removed from the drying zone, heated to form superheated steam, and returned to the drying zone for contact with the material during drying. A wood veneer dryer employing the invention is described as well as an apparatus for drying particulate material.

Abstract: A crane grab suspended by a single crane wire includes an operator-activated control means shiftable between a first position, in which open grab halves will be closed for digging in response to the crane wire being hoisted, and a second position, in which the grab halves are allowed to open themselves when placed on the ground and thereafter hoisted again.

Abstract: A musical instrument valve having two flexible, movable sound tubes in a casing is disclosed. By actuating a finger button, a musician can reposition the tubes to include a slide loop in the instrument's sound path.

Abstract: A novel rose plant of the hybrid tea class, having vigorous and heavily branched stems, abundance and continuity of blooms with distinct color shadings.