Abstract: Two arms of an articulated linkage are pivotally connected together. The distal end of one arm is connected at a pivot point to the side of the vehicle body, and the distal end of the other arm is connected to a tailgate pivot screw located on a linkage plate attached to the tailgate. When the arms are extended, the tailgate is held in a horizontal open position. As the tailgate is raised to the closed position, the connecting pivot point of the arms is moved downward, and a projecting guide tab on the linkage plate gathers the articulated linkage. A lock lever pivoted on the side of the vehicle has a slot to snap over the tailgate pivot screw of the tailgate, and is locked with a wing nut on the screw.

Abstract: The system includes a scanning electron microscope (SEM) and a color kinescope (CRT). The electron beams of the SEM and the CRT are driven in a synchronized raster. A first signal representative of back-scattered electrons, for example, is fed to a color encoder section, the output of which drives each of the red, green and blue guns of the CRT to generate a uniquely encoded color representation of the information in the first signal. A second signal, which may be derived from the secondary electron image of the sample is used to modulate the brightness of the CRT in accordance with the scanning electron beam. There is thus presented on the CRT a color image of high resolution and information content, and one which is ideally suited to human perception.

Abstract: A linkage assembly supports a moldboard plow. A cam member having a seat engaging a roller is pivotally connected to the linkage assembly. A spring assembly is pivotally connected between the cam member and the linkage assembly to urge the plow in a normal plowing position. When the plow bottom encounters an object the cam seat disengages the roller and the plow rises quickly. After the obstruction is passed, the plow resets. During reset, the roller rides on a cam surface which controls the force of the spring urging the plow to reset. The locus of the plow tip when it initially strikes an object is more rearward than upward to give the unit better ability to respond at higher ground speeds. The tip of the plow is inclined downwardly during reset to facilitate rapid re-entry to proper plowing depth.

Abstract: A strainer construction including a generally rectangular screen section for the interior of a walled vessel equipped with unique hook receiving means for supporting the same and facilitating expansion of the number of screen sections.

Abstract: A profile analysis reaction pack and related apparatus are disclosed, along with a method for simultaneously mixing, heating and reacting selected test reagents with multiple dilutions of a sample of body fluid to obtain a profile of the physiological condition of a given organ system. Each pack takes the form of a laminated card having a relatively rigid flat panel of transparent material secured to an opaque resilient panel, the resilient panel being preformed to define a plurality of generally semi-cylindrical reaction chambers disposed between the respective panels. During a profile test procedure, a sample of the body fluid to be tested is withdrawn from a storage chamber in the same pack and each reaction chamber is then injected with a diluted portion of the sample fluid. Temperature control is achieved by bracing the rigid panel of the pack against a fixed heated platen and by contacting the generally semi-cylindrical wall portion of each reaction chamber with a movable heated platen.

Abstract: A self-aligning swivel caster for use on carts and the like, the caster being equipped with a member for locking and releasing the caster with respect to swivel movement. The locking and releasing member, which can selectively be oriented in an operative or an inoperative position, is friction and gravity actuated. The structural relationship of the caster and the member is such that automatic camming and actuation of the member occurs as the caster is swiveled from an unlocked position into a locked position or from a locked position into an unlocked position. During actuation of the locking and releasing member, the caster makes direct contact with the member until the member finally drops into the proper position to either restrict or facilitate further swivel movement of the caster.

Abstract: A plurality of plow units are mounted to a main frame of a plow system for rotation about their vertical axes. The plow units are spaced at equal lateral increments and at uniformly increased distances from a pivot connection between the main frame and a traction vehicle. The plow units are ganged together by means of a guide beam; and a power actuator controls the motion of the guide beam in rotating the plow units so that their cut lines take a predetermined position relative to the main frame. As the plow system is then used to plow ground, the main frame swings about its pivot connection to the tractor until the plow units line up with the direction of travel of the tractor, thereby adjusting the spacing between plow units automatically. The rear plow unit is mounted to a tail section which is pivotally mounted to the main frame and includes a rear wheel for supporting the distal end of the main frame and for steering the system as the tractor turns.

Abstract: The plow system may carry as many as 10 or 14 individual plow units. All of the units are connected together by a tie rod and may be pivoted in unison relative to a main frame. By pivoting the units, they may be opened or closed to adjust the width of cut between adjacent units over a continuous, wide range. The main articulated frame includes a forward frame section with a main beam inclined relative to the direction of travel of the vehicle, and the rear frame section with a main beam in axial alignment with the main beam of the forward frame section. The forward frame section and rear frame sections are pivotally connected together for rotation about a horizontal axis to permit the system to follow the contour of the ground extending in the direction of travel. The system includes a forward furrow wheel, a rear furrow wheel, and a steerable intermediate support wheel which rides on unplowed ground ahead of the system and is steered as a function of the adjusted position of the plow units.

Abstract: A method and apparatus for determining coagulation times in such clinical laboratory procedures as prothrombin times tests, activated partial thromboplastin time tests, fibrinogen determinations, factor assays for specific blood coagulation factors, and the like. A fibrous filament is drawn at a predetermined rate through a small body of liquid to be tested and the interval, from the time a suitable coagulating agent is mixed with the liquid to the time the body of liquid clings to the filament and moves with it, is precisely measured as a direct indication of actual coagulation time. The liquid body is supported upon a non-wettable inclined surface bordered by walls defining a well for receiving the liquid and a pathway for its movement. Particularly effective results are achieved by utilizing a pair of spaced filaments moving at precisely the same rate, the filaments being bridged by a web or mass of clotted liquid when coagulation occurs.

Abstract: Apparatus for handling wound rolls wherein an upper takeaway conveyor receives rolls from a source conveyor and delivers the same selectively to a plurality of diverter conveyors. Each conveyor is equipped with a plurality of spaced apart grippers including three fingers grouped two on one side of each roll and one finger on the other.

Abstract: A column apparatus and process is provided for immobilized enzyme reactions using a bed of starch in sponge form, the starch having been chemically modified to incorporate enzyme-immobilzing groups. The starch sponge bed of the column apparatus has a flow of direction length of 2 to 5 feet or more, and a water flow porosity such that over 0.5 (preferably over 1.0) gal.water/min.ft..sup.2 flows through the bed. The apparatus and process can be used with a wide variety of enzymes. It has applicability to the enzymatic conversion of starch hydrolysates, since the starch forming the sponge bed can be cross-linked to increase its resistance to enzyme attack. Starch-derived sugar syrups having D.E.'s of 40 to 97 can be produced. Also, isomerization of glucose syrups can be carried out to produce a syrup of enhanced sweetness, comprising a mixture of glucose and fructose.

Abstract: The gasket-engaging sealing rim of the solids collection vessel of a filtration apparatus is provided with means for cooling its gasket-engaging surface to a stream condensing temperature, and means is provided to direct a flow of steam or other source of water vapor over the gasket-engaging surface while the surface is disengaged from the gasket during discharge of filtered solids, thereby wetting the surface while it is exposed to the atmosphere. This wetting of the surface prevents the accumulation of solids on the surface by the evaporative drying thereon of filtrate solutions, which may come in contact with the surface during the filtration operation.

Abstract: A latching mechanism for the rear gate of a dump vehicle is automatically released when the box is tilted rearwardly. The gate is hinged at the top so that when the release mechanism is actuated, the gate swings open and the contents may be discharged while the vehicle is still moving.

Abstract: A method for removal of undesirable surface material from a casting employing a water abrasive jet operating at low pressure, i.e., 8,000 psi (55.degree.kg/cm.sup.2) -- 12,000 psi (850kg/cm.sup.2).

Abstract: A plurality of telescoping tubes form a rail assembly which is pivotally connected at its lower end to a post, a sleeve is slidably received in the uppermost tube which is provided with an upper stop ring and a lower ring to limit the motion of the sleeve. A link is pivotally connected between the sleeve and an upper post. Thus, as the seating system is extended for use or retracted for storage, the handrail also extends and retracts. A stop element on the link limits the position of the link in the extended position so that the axes of upper and lower rail assemblies are aligned. In a preferred embodiment, the posts are inclined forwardly so that the rail assemblies are vertical in the storage position.

Abstract: A column apparatus and process is provided for immobilized enzyme reactions using a bed of regenerated sponge material chemically modified to incorporate enzyme-immobilizing groups. The sponge material selected for use in column apparatus has a flow of direction length of 2 to 5 feet or more, a density of less than 1 gram for each 18 cc. of bed volume (e.g. 1 g./20-70 cc. bed vol.), and a water flow porosity such that over 0.5 (preferably over 1.0) gal. water/min./ft..sup.2 flows through the bed. The apparatus and process can be used with a wide variety of enzymes, but has particular applicability to the enzymatic conversion of starch hydrolysates. Starch-derived sugar syrups having D.E.'s of 40 to 97 can be produced. Also, isomerization of glucose syrups can be carried out to produce a syrup of enhanced sweetness, comprising a mixture of glucose and fructose.

Abstract: A word-spelling game uses a plurality of lettered tiles. The face of each tile is marked with two letters of the alphabet in such a way that each letter is recognizable as being from one of two sets. Some of the tiles are marked with two different letters, and other tiles are marked with two identical letters.

Abstract: An electronic system employs a calculator as an arithmetic unit and accumulator. A mode switch enables operation as a timer (decrementing from a preset value) or a stopclock (incrementing time). Initial or preset values of time are entered manually through a keyboard in either mode. Sequencing circuitry controls execution of the arithmetic functions of the calculator in proper order and function, depending on the selected mode. The sequencing circuitry also gates the output of an oscillator to provide time increment pulses. A display unit generates a visual display of the accumulated time in both modes. In the timer mode, sensing circuitry senses when a preset time has elapsed and generates an audible signal.

Abstract: A mailing envelope structure and method wherein a single sheet is advantageously provided as a business form having a plurality of envelope blanks, each blank being equipped with perpendicular lines of potential folding to divide the blank into four parts, the blank when separated from the business form being divisible into four parts along the lines of potential folding to provide an envelope packet with one part as an invoice or the like and the remaining parts serving as envelope faces both for outgoing and return envelopes.

Abstract: The invention provides a combination of a sheet of thin pliable material adapted to be placed in sealing engagement with the skin of a patient in the location of a body opening made by an incision or wound, with the sheet being adapted to have an aperture formed therein to expose the opening, together with a removable cap preferably of transparent plastic material which can be adhesively secured to the outer face of the sheet. Drains placed in the body opening can be observed through the cap and the opening can be treated and the tubes withdrawn in increments by simply removing the cap which thereafter can be replaced.