@article{oai:soar-ir.repo.nii.ac.jp:00013078, author = {ICHIKAWA, Makoto}, journal = {信州大学工学部紀要}, month = {Jul}, note = {It seems that a theoretical and accurate method of making a screw surface of a board has not been known yet. Considering the property of an involute helicoid, the author has derived the theory on how to make a screw surface of a board, and succeeded in making a very accurate one by using this theory. This method has many advantageous points in comparison with some other methods which are known as for a work shop. Furthermore, the author thinks that this is only method of making an accurate screw surface of a board, since it is impossible theoretically to make that of a triangular thread and the like, of a board., Article, 信州大学工学部紀要 22: 1-12 (1967)}, pages = {1--12}, title = {A Screw Surface of a Board}, volume = {22}, year = {1967} }