PRINTING ENGINE. 6^1 
pounders and swivels. If to this be added, that the com- 
plete charge of a forty-two-pounder weighs about sixty- 
four pounds ; and that at least 100 charges are required for 
each gun, this will be found to amount nearly to the saine 
weight as the guns themselves. In addition also to this, 
the reflection must be made, tlrat every ship must have, to 
provide against exigencies, at least another set of sails, ca- 
bles, cordage, and tackling, which, taken togetlier, arnount 
to a considerable weight : the stores, likewise, consisting of 
planks, pitch, and tow ; the chests belonging to the ofticers 
and seamen } the surgeon's stores ; and various other articles 
requisite on a long voyage ; with the small arras, bayonets, 
swords, and pistols, make no inconsiderable load. To this 
must be finally added, the weight of the crew ; so that one 
of these first-rates carries, at the least, 2,162 tons burden, 
or 4,324,000 pounds ; and, at the same time, is steered 
and governed with as much ease as the smallest boat. 
PRINTING ENGINE. 
A NEW PRINTING PRESS, or PRINTING ENGINE, has re- 
cently excited the attention of the typographical woiW- It 
is wroiwht by the power of steam, and, with the aid of 
three boys, perfects nearly a thousand sheets per hour. A 
common press, worked by two men, takes oft but two 
hundred and fifty impressions on one side, and requires eight 
hours to perfect a thousand sheets. Hence, three boys in 
one hour are enabled, by this new application of the power 
of steam, to perform the labour of two men for eight 
hours. Such are the present capabilities of this engine ; 
but, as there is no limit to its required powers, and the si^ 
of tlie form is no obstacle to its perfect performance, it is 
proposed to take impressions on double-demy, in which 
case three boys will, in one hour, perform the labour ot 
thirty-two men. This engine is now at work at the prmt- 
iiig-office of Bensley and Sons, neai Fleet-sticet, and 
another on a similar, but kss perfect, construction, has for 
some time past been employed on a Morning Newspaper. 
Ill its general analogy, this press is not unlike die rolling- 
press of copper-plate printers. The forms being 
die carriak-, are drawn under a cylinder, on which the 
slieet being laid, and the ink distributed by an arrangement 
E e3 
