A supplement to Ures Dictionary of Arts, Manufactures, and Mines, : containing a clear exposition of their principles and practice. . elythrough a stand i, supported on delicate micrometric screws. On the stand i is placed asmall weight, made of platinum wire, which rests on the stand i, after liaving been passedthrough the stirrups The stan3 i is then regulated by its micrometric screws until theweight of platinum wire just touches the upper surface of the stirrup, so that there may beno blow given when the stirrup is not in motion by the beam. When the machine is set inmotion by the dri
A supplement to Ures Dictionary of Arts, Manufactures, and Mines, : containing a clear exposition of their principles and practice. . elythrough a stand i, supported on delicate micrometric screws. On the stand i is placed asmall weight, made of platinum wire, which rests on the stand i, after liaving been passedthrough the stirrups The stan3 i is then regulated by its micrometric screws until theweight of platinum wire just touches the upper surface of the stirrup, so that there may beno blow given when the stirrup is not in motion by the beam. When the machine is set inmotion by the driving wheels J, the cam k forces forward the lever l, which moves on pinspassed through blocks fixed to the table or base of the machine. At the upper end of thelever i. is a provision by which it forces forward an automaton hand or shovel, the end ofwhich is cut into a semi-circle, and is flattened, that it may pass under a gauge into a space MINT. 767 or hopper M, which is continued to the height of about two feet, and passes at an angle ofabout 30 over the top of the machine. When the automaton hand is forced forward, the 456. blanks to be weighed are placed in the hopper or shute m, and the bottom blank rests onthe flattened portion the hand, but as the cam k a forces back the hand or shovel by the 457
Size: 1885px × 1325px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1860, bookpublishernewyo, bookyear1864
