The Liverpool Standard and General Commercial Advertiser.
Liverpool, Merseyside, England, 1833-12-06 00:00:00

iikTiucT FROM THE INVENTOR'S CIRCULAR.

Every experiment has been tried that practical experience
could suggest, with view -to ascertain the capabilities and
powers of the Press. 1.11. Machine already completed by the
Mess's. Hawthorn is calculated for a super-royal sheet and
the form generally used was a broadside of ',Solid small type.—
The result of these several trials has more than answered the
most sanguine expectations, and fully roved that my calcula-
tions had been considerably underrated. In the following de-
scription I have been equally careful to avoid exaggeration.
The experiments were directed to ascertain-Ist, The power
of the Press; 2dly, Its speed; and, idly, Its general applicabi-
lity to all descriptions of work.

FIRST, AS TO POWER.
The power of the Self-Inking Press is, upon the most mode-
rate calculation, double that of the Columbian. It is certain
that, if the connecting-rod and cheek-pins were adjusted (which
can be done readily and with case) so as to give the leverages
full play. and the power of a strong man applied, the most
massive iron-frame ever made for a printing-press would be
easily snapped asunder.

SECONDLY, AS TO SPEED.
The result; as to speed, enables me to affirm, as a general
rule, that one man will, (with the improvements we contemplate
in the Machine s now in prOgress,) be enabled to accomplish
double the work that two men can now perform at the Colum-
bian; in other words, that one man will throw qff as many im-
pressions as four men can now complete at two presses. Of course,
it would be difficult to-lay down an eNact rule as to the precise
number of impressions per hour, because much will depend
upon the activity and dexterity of the workman. I will take,
however, as a criterion, a man who is tolerably active at his
business, and suppose lie can pull at the common press, with a
companion to roll for him, 250 impressions per hour of a book
form—the same man would, at the Self-Inking Press, without
assistance, print upwards of 500 per hour. If a light form, he
would throw off 600 impressions per hour; and of a large news-
form, one man would certainly, with a fly-boy, print with ease
an impression of 150() copies in three hours.
I may as well remark that the Self-Inking Press will fall short
of the Napier Machine as to rapidity. But here the compari-
son ends. The Napier Machine requires three persons to at-
tend it: the Self-Inking Press only one. The Napier Machine
is not applicable to a tithe of the work required to be performed
in a respectable office; but it is perfectly immaterial whether a
heavy broadside or a light circular be laid on the Kitchen Press,
as a proof of which I may add, we are now working every thing
at it that comes to the Journal printing-office. With the Na-
piei• Machine so much time is lost in "making ready" for a
short number, that its speed when in operation'does not compen-
sate for the delay; but at the Self-Inking Press, forms of all
descriptions are got to work much sooner than with the Colum-
bian or any other known invention. The Napier Machine (and
every other where the cylinder is used) injures the tyPes ; but
the Self-Inking Press is not liable to this objection. The Price
of the Napier Machine has hitherto been f.:5004- the largest Self-
Inking Press, is little more than one-fourth of that sum, and
the smaller one only about one:fifth. _

And, after all, even as to speed, it is respectfully submitted
that 500 impressions per houi is sufficient fur any• provincial
newspaper.'

THIRDLY, AS TO GENERAL UTILITY.

From the peculiar principle and arrangement of the Self-
Inking Press, very little time will be lost in working a very
small form at a very large machine. The consequence is that
it will not be requisite, as at present, to keep a news-press idle
through the week ; on the contrary, a machine of the laigest
magnitude will be applicable to every description of job, from
a double-royal posting bill to a small card,
It is intended that only three sizes shall be made, viz., Super
Royal, DOuble Demy,. and the large News Press.
Prices,:and any other particulars, may be known on applica-
tion, by letter or otherwise, to Mr. KITCHEN, at the Journal
Office.
The Self-Inking Press is only One of a Series of Inventions,
completed by Mr. Kitchen, for improVing the profession. A
Portab'e Galley .Press, ,possessing extraordinary advantages,
and an improved Imposing Stone, will be speedily offered to the
Public.

Arrangements are also in progess to supply the Trade with
planed Iron Imposino.' Surfaces, and Roller Moulds and Inking
Tables, for common Presses, as well as several other Articles
used in the business, all of an improved Construction, and at
moderate Prices.
Newcastle-upon-Tyne, Oct., 28, 1833.