8vo, a collection of logarithmic and trigonometrical tables which has passed through many editions, a very useful one volume stereotype edition having been published in 1840 by Masse.
But the rule apparently obtains throughout that stereotype and compromise offer themselves as the exhaustive alternative.
It is well known "(says Professor Dill)" that the tendency of the later Empire was to stereotype society, by compelling men to follow the occupation of their fathers, and preventing a free circulation among different callings and grades of life.
Before the general introduction of rotary machines which print from curved stereotype plates from an endless web or reel Type of paper (see below), several other presses of a revol- Revolving ving character were made, to some extent based on Nicholson's ideas.
This machine had two pairs of cylinders, that is, two type or stereotype cylinders, and two others which gave the impression as the web passed between.
In his machine the stereotype plates were not made to fill the whole periphery of the forme cylinders so as to allow of the sheets being cut before printing, a difficulty w'iich the first machines did not satisfactorily overcome.
Rotary machines, printing from an endless web of paper from curved stereotype or electrotype plates, principally used XXII.
Continuously rotate, the web of paper travelling in and out, in a serpentine manner, between various cylinders of two aharactersone (the type cylinders) carrying the surface to be impressed, usually curved stereotype plates, and the other (the impression cylinders) giving the desired impression.
The number of duplicate sets of stereotype plates to be worked from by these presses is determined by the size and number of the pages to be printed, and this in turn is regulated by the capacity of the machine.
As already explained, the forerunners of the rotary presses of the present day were the type-revolving printing-machines, and, whilst they were still being used, experiments were being made to cast curved stereotype plates which would facilitate and simplify the work of producing newspapers.
Again turned their attention to the construction of a rotary perfecting press to print from the reel or continuous web of paper, and from stereotype plates fastened to the cylinder.
Each press produces of that number of pages 50,000 copies per hour, printed both sides, cut, folded and counted off in quires complete; by increasing the sets of Rotary stereotype pages the same machine will produce 100,000 Machines.
Single proofs of type, stereotype, electrotype or blocks of any description can often be struck off without making-ready with fairly good results, but if precision of " colour " (that is, inking) and uniformity of impression throughout a volume are desired, it is necessary to put the forme, whether type or blocks or both, into a proper condition before starting the printing of an edition, whatever its number.
In rotary printing from the curved stereotype plate and from the endless web of paper much can be done to assist the printer if good stereotype plates are supplied to him, and, if the forme contains any illustrations, both the artist and the engraver can help him if they keep in mind the particular character of illustration which they are preparing for the press.
The introduction of the autoplate is of great advantage to those using rotary presses, because it allows the production of a large number of duplicate stereotype plates of satisfactory quality speedily.