. Collection of United States patents granted to Thomas A. Edison, 1869-1884 . T. A. No. 203,329, Patented May 7, , PHOTO-LITHOGRAPHER, WASHINGTON. D. C United States Patent Office. THOMAS A. EDISON, OF MENLO PABK, NEW IN PERFORATING-PENS. Specification forming part of Letters Patent No. 203,329, dated May 7, 1878; application filed April 23,1877. 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, nave invented an Im-provement in Perforating-Pens, of which t
. Collection of United States patents granted to Thomas A. Edison, 1869-1884 . T. A. No. 203,329, Patented May 7, , PHOTO-LITHOGRAPHER, WASHINGTON. D. C United States Patent Office. THOMAS A. EDISON, OF MENLO PABK, NEW IN PERFORATING-PENS. Specification forming part of Letters Patent No. 203,329, dated May 7, 1878; application filed April 23,1877. 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, nave invented an Im-provement in Perforating-Pens, of which thefollowing- is a specification: This invention is an improvement upon andmodification of the device patented to me, ,857, and dated August 8, 1876. The present invention relates to a means forreciprocating the needle that is used for per-forating the paper. I employ a motor that is revolved by footor other convenient power, and gives motionto a shaft with universal joints that passes tothe pen and revolves the mechanism that re-ciprocates the pen, and at the same time theuniversal joints allow the pen to be manipu-lated in writing
Size: 1382px × 1808px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., boo, bookcentury1800, booksubjectinventions, booksubjecttelephone
