Measurex Corporation

Econics Corporation

S Keith Swanson

David E Stepner

Louis S Adler

In a duct having a gas of predetermined density and viscosity flowing therethrough at a predetermined velocity, a sample chamber for a gas analyzer for use in such a duct is disclosed and includes an inner chamber having a passage therethrough and an outer chamber at least partially surrounding the inner chamber and having a pair of apertures, with the outer housing being movable by suitable apparatus between one position in which the outer housing apertures are generally aligned with the inner chamber passage and another position in which the outer housing apertures are spaced from the inner chamber passage, the outer housing and inner chamber being configured and dimensioned such that the Reynolds number for the flow of duct gases over the outer housing and inner chamber is sub-critical when the outer housing is in its other position with its apertures spaced from the inner chamber passage.

Sample chamber for gas analyzer

A method of optimizing the performance of a multi-unit power plant which produces both electrical and steam energy by determining the incremental efficiency of power boilers with various fuel inputs and thereafter determining the index of performance by taking into account cost factors and reallocating in the most optimum manner.

Method of optimizing the performance of a multi-unit power

A method and apparatus for controlling the yield of fabric material from a tenter frame having spaced apart belts driven by drive means and an overfeed roll at its entry end. In a start-up or style change mode of operation a predicted dry yield is computed from data signals received before the fabric enters the tenter frame, then compared with a target value to produce a control signal to the overspeed roll. In the steady state mode of operation, actual yield is computed from data taken at the output end of the tenter frame; then is compared with a target yield value and thereafter modified by a correction factor proportional to variations in predicted dry yield computed from inputs taken at the entry to the tenter frame; the modified control signal again being applied to the overspeed roll.

Control system for textile tenter frame

An automatic temperature control system for a textile tenter frame having an oven section for heating the fabric in order to 'set' its fibers in an essentially non-shrinkable state. The system operates to maximize the speed of the tenter frame while maintaining optimum heat set conditions. Fabric temperature from within the oven and initial moisture content data are furnished to a computer and processed with time-at-temperature target inputs to provide tenter frame speed control output signals.

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Saratoga, CA, United States of America

S Keith Swanson