Stabilized-platform weighing scale of novel design. . Fig. 2 the screws by which clamp members 8 and 10 are held in position may passthrough close-fitting holes in the tape or may act to secure the tape ends by frictionbetween the clamp jaws alone. The pins 13 may after final adjustment of the tape bedriven tightly into holes drilled completely through clamp jaws and tape so as to pro-vide a positive, and not easily alterable, means of preventing slippage or displace-ment of the tape during use of the scale. The thickness and width of the tape are chosen so as to be suitable to the lo
Stabilized-platform weighing scale of novel design. . Fig. 2 the screws by which clamp members 8 and 10 are held in position may passthrough close-fitting holes in the tape or may act to secure the tape ends by frictionbetween the clamp jaws alone. The pins 13 may after final adjustment of the tape bedriven tightly into holes drilled completely through clamp jaws and tape so as to pro-vide a positive, and not easily alterable, means of preventing slippage or displace-ment of the tape during use of the scale. The thickness and width of the tape are chosen so as to be suitable to the loads andservice the scale will be subjected to. I do not wish to be limited to the use of asingle tape for the purpose. It is to be noted that some elastic effect will be introduced by the stiffness of thetape, especially if the tape be made relatively thick in order to withstand large loads,but no difficulty will be experienced on this account as the additional restoringmoment provided by the elasticity of the tape can be compensated for by suitable. -p&^- Fig. 20. 28 Technologic Papers of the Bureau of Standards reduction of the restoring moment of the beam, by adjusting its center of gravity-close to or even, if it should in rare instances prove necessary, by locating it abovethe fulcrum knife edge. In Fig. 3 in which an equal-arm balance is shown, 4 is the scale beam having theload knife edges at either end, each of which support the stem 7, a tape g/ beingconnected to the lower end of each stem. It is understood that it is not essential that the stabilizing tape be below the planeof the beam. The arrangement may be such that the stabilizing tape is above theplane of the beam or in fact in any plane except that defined by the load and fulcrumknife edges. In case the stabilizing tape lies above the plane of the load and fulcrumknife edges, the particular side toward which the scale platform is disposed may differfrom the arrangement illustrated in the drawings. In any case th
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernationalbureauofst
