The life, times, and scientific labours of the second Marquis of Worcester : to which is added a reprint of his Century of inventions, 1663, with a commentary thereon . method of making one of tin or zinc, which may beeasily shown by cutting out the same in thin paste-board. Form a number of discs of thin metal likeNo. 1, say three inches diameter, with a hole in thecentre one inch diameter, and the metal cut through atA. Eivet, solder, or otherw^ise fasten them together,commencing by placing No. 2 on No. 1; now secm-e thecut edge of A, to the similar edge of 5, and so on insuccession, until a
The life, times, and scientific labours of the second Marquis of Worcester : to which is added a reprint of his Century of inventions, 1663, with a commentary thereon . method of making one of tin or zinc, which may beeasily shown by cutting out the same in thin paste-board. Form a number of discs of thin metal likeNo. 1, say three inches diameter, with a hole in thecentre one inch diameter, and the metal cut through atA. Eivet, solder, or otherw^ise fasten them together,commencing by placing No. 2 on No. 1; now secm-e thecut edge of A, to the similar edge of 5, and so on insuccession, until a sufficient pile is obtained. They maynow be extended to form a screw, as in No. 3, of anydesued pitch. The minuter details of construction willbe obvious to any clever artizan. 555 APPENDIX A. [The following is from Birchs M8S. in the British Museum, ; and portions have been quoted ia the Commentary, undereach article of invention named herein.] INVENTIONS OF T^ EAELE OF WOECEST? The Qvint Esseuce of Motion, or a Collection of all kinds ofMovements, to wit, Circular, to & fro ; Perpendicular, upwards &downewards; side motions, to y^ right & l
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectinventions, bookyear1
