. A dictionary of arts, manufactures and mines : containing a clear exposition of their principles and practice. 1-16. Across the middle of this board, and parallel to the pieces k k, the tongue piece m ismade fast, which fits into a groove in the bottom of board I. A horizontal representationof this is seen at fig. 147, and immediately under this view is also seen an end view of Iand /, connected together, and a side view of/ by itself. In the middle of the board If 166 BOOKBINDING. is a pin for a circular board «, to turn upon, and upon this letter board is placed the material to be cut, wit
. A dictionary of arts, manufactures and mines : containing a clear exposition of their principles and practice. 1-16. Across the middle of this board, and parallel to the pieces k k, the tongue piece m ismade fast, which fits into a groove in the bottom of board I. A horizontal representationof this is seen at fig. 147, and immediately under this view is also seen an end view of Iand /, connected together, and a side view of/ by itself. In the middle of the board If 166 BOOKBINDING. is a pin for a circular board «, to turn upon, and upon this letter board is placed the material to be cut, with a saving piece between it, and the circular piece which is tobe divided upon its edge into any number of parts required, with a stationary index onthe board I, to point to each. It will now be understood thai the material to be cut, may be turned round uponthe centre pin of tlie board n, and also that both it and the board can be shifted back-ward and forward under the top cross piece a, and between the side slide slips k k, thesurfaces of which should also be divided into inches and tenths. The plough, fig. 1
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Keywords: ., bookcentury1800, bookdecade1840, booksubje, booksubjecttechnology
