. Collection of United States patents granted to Thomas A. Edison, 1869-1884 . s, Figure 1 represents a blankmade from cane bamboo, ready for carboniza- 70tion, having enlarged or clamping ends s sformed on one edge only, while in these en-larged or clamping ends are the slots i i, bywhich the slips may be secured in the carbon-izer,and which also may form the holes through 75which pass the screws or clamps, if clamps beused for securing the finished carbon to lead-ing-in wires. Fig. 2 shows in perspective afinished carbon made from the blankshown inFig. 1. 80 What I claim is— 1. A slip or fil
. Collection of United States patents granted to Thomas A. Edison, 1869-1884 . s, Figure 1 represents a blankmade from cane bamboo, ready for carboniza- 70tion, having enlarged or clamping ends s sformed on one edge only, while in these en-larged or clamping ends are the slots i i, bywhich the slips may be secured in the carbon-izer,and which also may form the holes through 75which pass the screws or clamps, if clamps beused for securing the finished carbon to lead-ing-in wires. Fig. 2 shows in perspective afinished carbon made from the blankshown inFig. 1. 80 What I claim is— 1. A slip or filament for forming on carboni-zation the incandescing conductor of an elec-tric light, made of bamboo or similar fiber,substantially as set forth. 85 2. An incandescing carbon conductor forelectric lights, made from cane bamboo or simi-lar fiber, substantially as set forth. This specification signed and witnessed this 38thday0fJny1S8% : Chas. Batohelor,g. e. gotjrand. (No Model.) T. A. EDISON. ELECTRO MAGNETIC MOTOR. Ho. 251,541. Patented Dec 27, United States Patent Office. TIIOMAS A. EDISON, OF MENLO PARK, NEW JERSEY, ASSIGNOR TO THEEDISON ELECTRIC LIGHT COMPANY, OF NEW YORK, N. Y. ELECTRO-MAGNETIC MOTOR. SPECIFICATION forming part of Letters Patent No. 251,541, dated December 27, 1881. Application filed May 31, 1881. (Xo model.) I To all whom it may concern: Be it known that I, Thomas A. Edison, ofMenlo Park, in the county of Middlesex andState of New Jersey, have invented a new and I useful Improvement in Electro-Magnetic Mo- j tors ; and I do hereby declare that the follow-ing is a full and exact description of thesarne,reference being had to the accompanying draw-ing, and to the letters of reference markedfeo thereon. The object I have in view is an improvementin electro - magnetic motors for driving lightmachinery—such as sewing-machines, lathes,&c, but especially designed for sewing ma-v$ chines—which improvement will enable the I speed
Size: 1324px × 1887px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., boo, bookcentury1800, booksubjectinventions, booksubjecttelephone
