Measurex Corporation

Other

Paul J Houghton

John D Goss

Mathew G Boissevain

Lee M Chase

David A Bossen

Leonard M Anderson

Michael K Norton

Alan E Brandt

Kent M Norton

Henry R Markus

A sheet-gauging apparatus for determining properties of a moving sheet of material includes a frame having parallel upper and lower horizontal supports extending above and below the sheet in a direction transverse to the direction of travel of the sheet. Upper and lower tracks are carried by the upper and lower supports, respectively, each of the tracks including a flat upper surface and a lower surface having tapered end portions. Upper and lower carriages are mounted on the upper and lower tracks, respectively, for bidirectional travel along the tracks, each of the carriages including upper wheels in rolling contact with the upper surface of the track and lower wheels in rolling contact with the tapered end portions of the lower surface of the track. Displacement of the carriages in the directions orthogonal to the direction of carriage travel is thereby minimized. Upper and lower gauging head assemblies disposed on opposite sides of the sheet and coupled respectively to the upper and lower carriages are adapted to measure characteristics of the sheet. The upper wheels have hard, smooth peripheries while the lower wheels have elastomeric tires. Brushes mounted on each carriage outboard of the upper wheels clear debris from the upper surface of the track.

System and process for determining properties of a moving sheet of

Apparatus utilized in the continuous manufacture of sheet material, such as paper, includes a frame having at least one hollow beam for carrying means such as sheet-gauging heads operatively associated with the sheet material being fabricated. Thermal stability of the at least one hollow beam is enhanced by circulating fluid within the beam. Fluid displacement means which may be in the form of a series of inserts disposed end-to-end within the hollow beam define with the interior wall of the beam a fluid conduction channel. The fluid displacement means may also include generally helically oriented guides projecting into the fluid conduction channel for inducing turbulence in the circulating fluid.

Cooling structure for stabilizing the temperature of beams in a

A running blade is adapted to move at the same speed as a continuously running sheet and to generate a burst perforation through the sheet. The force exerted by the blade against the sheet is measured and used to calibrate a non-destructive sheet strength sensor.

Device and method for calibrating a non-destructive sheet strength

A modular cage design providing a variety of environments and stimuli for primates or other animals, including a front panel, a rear panel, and a side panel switch are hinged or interlocked together. Where hinges are used, side panels are held together by longitudinal rods, which are threaded on each end, and which pass through bores provided in the front and rear panels. The front and rear panels are fixed to the side panels by nuts threaded onto the rods. A sliding panel is provided, attached to handles which are accessible from outside the cage, for sliding forwardly, to move the primate towards the front of the cage. Doors are provided on one end panel, in either a swinging or sliding configuration, for access to the interior to the cage. The side panels are adjustable for forming multi-cage environments. In one embodiment, hooks are used, and the side panels are provided with angles, such that reversing a given side panel changes the overall shape of the cage. In multi-cage configurations, rectangular connecting passages are formed, which are closed off by rectangular end panels. The cage materials are preferably lightweight, multi-colored and primate-proof, and provided with a variety of differently shaped apertures, for varying the environment of the primate. The modularity of the design allows individual elements of the cage to be interchanged freely, further providing environmental variety. In some embodiments, the cage is mounted on a cone or bar, about which it may freely rotate, providing an exercise function. A brake is provided to prevent rotation when desired.

Modular cage structure

A sensor for sensing a quality of a sheet, such as a paper sheet, related to elastic modulus and bending stiffness as it is being made including a sheet support in the form of a ring and a free running wheel, which depresses the paper into the center of the ring as the paper passes over it. A force transducer mounted to the wheel senses the force of the deflected paper on the wheel and provides a measure of a characteristic of the paper related to its elastic modulus and being stiffness. Alternatively, or in addition, a displacement sensor may be used to sense the distance that the sheet is displaced by the wheel into the ring. These factors, together with basis weight, thickness and paper velocity may be used to determine the strength of the paper on a continuous basis.

Sensor and system for continuous determination of sheet characteristics

A sensor is disclosed for sensing a physical property of a sheet material. The sensor includes a mechanism for supporting one side of the sheet along the periphery of a defined region and a mechanism for forcibly deflecting the sheet into the unsupported center of the defined region. A transducer may also be incorporated to sense the force required to deflect the sheet into the unsupported region and/or the distance that the sheet is deflected into the unsupported region. The sensor may be operatively coupled to a computer programmed to determine a physical property of the sheet based upon the sensed force and/or distance, such as the sheet failure strength.

System and method for the determination of certain physical

A sensor for continuous sensing of a quantity of paper related to its elastic modulus and stiffness including a paper support in the form of a segmented ring, and a free running wheel which depresses the paper in the center of the ring as the paper passes over it. Force transducers mounted to sense force exerted on the segments provides a measure of a characteristic of the paper related to its elastic modulus and bending stiffness. The segments are aligned so that separate determinations of machine direction and cross-direction characteristics are made. The outputs of this sensor, together with basis weight, thickness and paper velocity are used to determine the strength of the paper on a continuous basis. Separate values of machine direction and cross-direction strength can be determined, as can a burst pressure strength.

Sensor and system for continuous determination of paper strength

A sensor for sensing a quality of paper related to elastic modulus and bending stiffness as it is being made including a paper support in the form of a ring and a free running wheel, which depresses the paper in the center of the ring as the paper passes over it. A force transducer mounted to the wheel senses the force of the deflected paper on the wheel and provides a measure of a characteristics of the paper related to its elastic modulus and bending stiffness. This factor, together with basis weight, thickness and paper velocity are used to determine the strength of the paper on a continuous basis.

Sensor and system for continuous determination of sheet strength

A variable maze device for enriching the environment of a contained primate, or for use as a crib toy, the device including a variable and programmable maze as well as a mechanism whereby a contained primate or a human infant may be instructed as to the location of the correct pathway through the maze.

Variable maze device

An educational device for enriching the environment of a contained primate, including a variable and programmable maze as well as a mechanism whereby the primate may be instructed as to the location of the correct pathway through the maze.

Primate education device

A plant nutrient composition is described that includes those mineral, ionic, and hormones required by plants to carry out their biological and metabolic processes. The composition includes

Growing community of inventors

Los Gatos, CA, United States of America

Paul J Houghton