摘要:
A record of intelligence in binary bar form constituted by deposits of magnetizable ink on a substratum is converted by magnetic carrier-frequency-modulation into a binary carrierfrequency-modulated magnetic patter.
摘要:
A system for automatically identifying and labeling the contents of blood packs designed to avoid human errors in the process of identifying and labeling of the contents of blood packs. The system includes an information storage and retrieval center having means for storing information at predetermined addresses and retrieving information from said addresses. It further includes a laboratory station having means for supplying all pertinent data needed for labeling blood packs to the aforementioned information storage and retrieval center. In addition the system includes a printout station where information is being retrieved from the information and retrieval center and automatically imprinted upon blood packs. The labeling of blood packs involves identification of the blood type and serologic data.
摘要:
A servo-controlled mixing valve for mixing two fluids in a variable ratio is operated by a fluid motor having fluid admission means and fluid dumping means which are jointly controlled by dual action servovalve means, the effective area of the fluid admission means and of the fluid dumping means being changed inversely and simultaneously by operation of a common valve stem under the control of a sensing element.
摘要:
A fail-safe servo-controlled mixing valve is provided with a spring means to render it fail-safe, and with another or auxiliary fluid-pressure-operated means to render it fail-safe should the fail-safe spring means fail to properly function.