Mechanical exercises, or, The elements and practice of carpentry, joinery, bricklaying, masonry, slating, plastering, painting, smithing, and turning . Zone i, !iFliJ>,xrvA2&.\ffiThorrt. TUENING. 381 ttiove in a groove of the same breadth, or whethera straight line in reciprocal motion always passthrough two fixed points. No. 1 shows the chuck, as in the first diagramof the last plate: No. 2 as No. 2, No. 3 asNo. S, and No. 4 as No. 4 of the said farther explanation is conceived as unneces-sary. It now remains to explain how the chuckis connected with
Mechanical exercises, or, The elements and practice of carpentry, joinery, bricklaying, masonry, slating, plastering, painting, smithing, and turning . Zone i, !iFliJ>,xrvA2&.\ffiThorrt. TUENING. 381 ttiove in a groove of the same breadth, or whethera straight line in reciprocal motion always passthrough two fixed points. No. 1 shows the chuck, as in the first diagramof the last plate: No. 2 as No. 2, No. 3 asNo. S, and No. 4 as No. 4 of the said farther explanation is conceived as unneces-sary. It now remains to explain how the chuckis connected with the machine, and how theparts are connected with each other. The end of the spindle of the mandrel passesthrough a stout upright, and projects over itwith a convex or male screw, to which is fixedthe board KLMN with the faces at right anglesto the axis: a circular ring or end of a verylarge pin is attached to the said side of the up-right, so that the ring or pin may be fixed at anyrequired distance from the axis of the spindle,and that its axis and the axis of the mandrelmay always be in the same horizontal line orplane. The wide g
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Keywords: ., bookcentury1800, books, booksubjectcarpentry, booksubjectgeometry
