- Hinman Collator
The Hinman Collator, an early
optical collator, was an opto-mechanicaldevice for comparing pairs of documents for differences in the text. Documents that appeared similar were said to “collate”. The collator resulted in rapid advances in the study of literary works.
Charlton Hinmanin the late 1940s, the device used lights and mirrors to superimpose images of the two documents so that differences in text alignment or wording stood out. This resulted in huge improvements in speed and efficiency compared to the traditional cross-referencing of texts by eye.
The idea built on earlier work such as Carl Pulfrich's
blink comparatorused to help identify the planet Pluto, and Hinman's work analysing aerial photographs during World War II.
Hinman used his device to compare the many slightly different impressions of the
First Folioof William Shakespeare's works. The printingand bookbindingprocesses used in the time of Shakespeare often resulted in variations in the pages bound into the final books, and the collator enabled Hinman to describe the exact order in which the Folios had been composited and printed.
In the wake of Hinman's success, the device was purchased by a number of universities, libraries and other institutions (allegedly including the
CIA) [Smith, Stephen Escar. [http://etext.virginia.edu/etcbin/toccer-sb?id=sibv053&
] Studies in Bibliography 53, 2000.] . As more compact types of collator were developed in the 1960s, the last Hinman was built in 1978.
The device was developed further by Randall McLeod [Zalewski, Daniel. [http://linguafranca.mirror.theinfo.org/9706/fieldnotes.html "Through the looking glass."] Lingua franca, June 1997.] .
* [http://ecs.bathspa.ac.uk/swift/archives/000013.html Books and Mirrors]
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