Browsing named entities in Knight's Mechanical Encyclopedia (ed. Knight). You can also browse the collection for Johns or search for Johns in all documents.

Your search returned 3 results in 1 document section:

British patent, 2048 of 1858.Devlin, 1860. Peters, 1862.Devlin, 1865. Botticher: with soapstone and cotton,1864. Kelly: with graphite and iron-filings,1870. Johns: with caoutchouc,1868. 10. For molded articles:Whitmarsh, 1868. 11. For roofing cement:Johns, 1868. Kidwell, 1868.Moore, 1868. 12. Flooring cement:WhitmarshJohns, 1868. Kidwell, 1868.Moore, 1868. 12. Flooring cement:Whitmarsh, 1867. 13. Electric insulator:English patent, 362 of 1865. 14. In refrigerators:Hyatt, 1870. 15. In ink:Smilie, 1863. 16. For paper:English patent, 1413 of 1853. Johns, 1868. Schaeffer on Paper, an old German book, describes asbestus paper, and contains a specimen. 17. For coffins— mixed with clay:1870. 18. For Johns, 1868. Schaeffer on Paper, an old German book, describes asbestus paper, and contains a specimen. 17. For coffins— mixed with clay:1870. 18. For ropes strengthened with other materials,Stevens, 1870 and 1871. 19. For yarn: separated into filaments by alkaline treatment, and then treated like wool: Rosenthal's patent,1872 As-bestus stove. A stove heated by gas and having asbestus spread over the perforated pipes, in order to obtain an incandescent mass, which radi