. A dictionary of arts, manufactures and mines : containing a clear exposition of their principles and practice. wood or metal, which supports the two conical rollers b and c. These revolve independ-ently of each other in proper brass bearings. A third conical roller d is similarlysui)ported under the top piece e of the machine. AH these rollers are frusta of cones,made of cast iron. Whatever form of tooth be adopted, they must be so shaped anddisposed with regard to each other as to have considerable play between them, in orderto admit the quantity of flax stem which is intended to be broken
. A dictionary of arts, manufactures and mines : containing a clear exposition of their principles and practice. wood or metal, which supports the two conical rollers b and c. These revolve independ-ently of each other in proper brass bearings. A third conical roller d is similarlysui)ported under the top piece e of the machine. AH these rollers are frusta of cones,made of cast iron. Whatever form of tooth be adopted, they must be so shaped anddisposed with regard to each other as to have considerable play between them, in orderto admit the quantity of flax stem which is intended to be broken and prepared. Theupper piece e of the machine which carries the upper conical roller d, is fixed or at-tached to the main frame a a a A by strong hinges or any other moveable joint at g, androds of iron or other sufliciently strong material; h h is attached at its upper end by ajoint to the top piece e, through a hole near i, and is fixed at its lower end by anotherjoint K to the treadle or lever k l, which turns upon the joint or hinges m. A spring orweight (but the former is preferable for many reasons) i
Size: 1738px × 1438px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1840, booksubje, booksubjecttechnology
