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The special aniline dyes for making the master image came in the form of ink or in pens, pencils, carbon paper and even typewriter ribbon. Hectograph pencils and pens are sometimes still available. Various other inks have been found usable to varying degrees in the process; master sheets for spirit duplicators have also been pressed into ...
A spirit duplicator (also referred to as a Rexograph or Ditto machine in North America, Banda machine or Fordigraph machine in the U.K. and Australia) is a printing method invented in 1923 by Wilhelm Ritzerfeld that was commonly used for much of the rest of the 20th century. The term "spirit duplicator" refers to the alcohols that were a major ...
The hectograph introduced in 1876 or shortly before, was a technology in which a dye-impregnated master copy, not unlike a spirit master, was laid on top of a cake pan full of firm gelatin. After the dye soaked into the gelatin, sheets of paper could be laid on top of the gelatin to transfer the image.
Unlike spirit duplicators (where the only ink available is depleted from the master image), mimeograph technology works by forcing a replenishable supply of ink through the stencil master. In theory, the mimeography process could be continued indefinitely, especially if a durable stencil master were used (e.g. a thin metal foil).
The Pan of Gelatine printer was/is called a "Hectograph" (I still have one in my closet) I have never printed with it but have read many accounts of that struggle. It was a primitive form of "spirit-duplication" because the copies had to be lightly dampened with the "Alcohol-Spirits" to pull a good copy of the printing off the gel surface.
The review included an inflation-adjusted analysis of financial reports provided to the NCAA by 201 public universities competing in Division I, information that was obtained through public records requests. The average athletic subsidy these colleges and their students have paid to their athletics departments increased 16 percent during that time.
The Commercial Camera Company apparently became the Photostat Corporation around 1921, for "Commercial Camera Company" is described as a former name of Photostat Corporation in a 1922 issue of Patent and Trade Mark Review. [6] For at least 40 years the brand was widespread enough that its name was genericized by the public.
The last image we have of Patrick Cagey is of his first moments as a free man. He has just walked out of a 30-day drug treatment center in Georgetown, Kentucky, dressed in gym clothes and carrying a Nike duffel bag.