. The Americana : a universal reference library, comprising the arts and sciences, literature, history, biography, geography, commerce, etc. of the world . d. These prices per pound co- operate with both weight and money-value grad-uations on the chart. To determine the weightand value of an article, the poise is moved outon the beam until the load on the platform iscounterbalanced and the weight of the article aswell as the value of it at any price per pound, isindicated. Beam computing scales with cylindricalcharts showing money-values have been madeboth in the form of even-balance and platf
. The Americana : a universal reference library, comprising the arts and sciences, literature, history, biography, geography, commerce, etc. of the world . d. These prices per pound co- operate with both weight and money-value grad-uations on the chart. To determine the weightand value of an article, the poise is moved outon the beam until the load on the platform iscounterbalanced and the weight of the article aswell as the value of it at any price per pound, isindicated. Beam computing scales with cylindricalcharts showing money-values have been madeboth in the form of even-balance and platformscales, the even-balance type being the one moreextensively used. One of the earliest patents onscales of this class was issued 8 May 1866 toH. S. Cushing, Blossburg, Pa., but the form mostextensively used is built upon the principleshown in patent issued 20 April 1897, to O. of Dayton, Ohio. This scale has a cylin-der attached to the weighing beam. Upon thiscylinder are printed the prices per pound andthe total money-values. To operate the scalethe cylinder is turned by hand until the desiredprice per pound appears, and the poise is then. Spring Automatic Scale with Disc Chart containingCalculations. moved out on the beam until the load on thescale is counterbalanced. An indicating fingerextends from the poise to the graduated cylin-der, showing the total value of the beam having a limited weighing capacity,when a heavy load is to be weighed weightsmust be employed, in which case the total valueof the commodity represented by these weightsmust be added to the value shown on the of this type were patented as early as1866, a patent having been issued to J. Johnson,Saco, Maine, on 21 August of that year, but themore important inventions in this class werethose of J. H. Swihart of Dayton, Ohio, coveredby patent issued 19 March 1895. This scale wasconstructed similar to the ordinary hangingspring scale. One side of the scale, for the con-venien
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectencyclo, bookyear1903
