IMPROVEMENTS IN DOUBLE-CYLINDER CARDING ENGINES
Year: 1866

page_text: LETTERS PATENT to Louis Rudolph Bodmer, of 2, Thavies Inn, Holborn,
in the City of London; Engineer and Patent Agent, for the Invention of
"IMPROVEMENTS IN DOUBLE-CYLINDER CARDING ENGINES."-A communication
from abroad by Anton Girardoni, of Vienna, in the Empire of Austria:
Sealed the 9th November 1866, and dated the 10th May 1866:
PROVISIONAL SPECIFICATION left by the said Louis Rudolph Bodmer
at the Office of the Commissioners of Patents, with his Petition; on the
10th May 1866.
I, LOUIS RUDOLPH BODMER, of 2, Thavies Inn, Holborn, in the City of
London, Engineer and Patent Agent, do hereby declare the nature of the
said Invention for "IMPROVEMENTS IN DOUBLE-CYLINDER CARDING ENGINES;" (à
communication from abroad by Anton Girardoni; of Vienna; in the Empire of
Austria,) to be as follows:-
Double carding engines or cärding engines with two main cylinders; also
known as Oldham engines; are employed for the purpose of passing the cotton
over two main cylinders in succession; with the object of producing a very
fine and perfect fleece suitable for the finer Nos: of yarns; as also for the
coarser ones of the best quality: In these machines the two main cylinders
with parts belonging to them are placed one behind the other on the samo
frame; and the machines become therefore of necessity very ponderous;

page_text: requiring a considerably increased driving power, and an amount of space
which often cannot be spared for them.
The present Invention consists in the construction of an improved double
carding engine which will produce the same amount of work as the double
carding engines hitherto employed, and which will occupy no more room than
an ordinary single cylinder engine. Instead of placing the two main cylinders
with their respective flats or rollers and clearers one behind the other on the
same level the Inventor places them vertically or otherwise one above the
other, and in such a manner that the cotton from the scutchers enters the first
or upper cylinder on the same side of the machine from which the finished
fleece from the second or lower cylinder is delivered by the doffer.
In this improved double carding engine the main cylinders are made
smaller in diameter, namely, about 24 inches instead of 36 to 48 inches as
heretofore; but owing to their disposition on the frame these smaller
cylinders offer nevertheless an equal amount of working surface for the place-
ment of the rollers and clearers or flats, because the under side of the cylinders,
which in the ordinary carding engines is lost, becomes available. Each main
cylinder has its own doffer, and the doffer of the first or top cylinder delivers
the fleece to the second or bottom cylinder. As the main cylinders are made
smaller in diameter the height of the improved carding engine is not more
than that of the ordinary single carding engine, whilst in length it is even
less, because the cotton is fed and delivered on the same side of the machine.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Louis Rudolph Bodmer in the Great Seal Patent Office on
the 10th November 1866.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, Louis
RUDOLPH BODMER, of 2, Thavies' Inn, Holborn, in the City of London,
Engineer and Patent Agent, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Tenth day of May, in the year of our Lord
One thousand eight hundred and sixty-six, in the twenty-ninth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said Louis Rudolph Bodmer, Her special licence that I, the said Louis
Rudolph Bodmer, my executors, administrators, and assigns, or such others as
I, the said Louis Rudolph Bodmer, my executors, administrators, and assigns,.
should at any time agree with, and no others, from time to time and at all

page_text: times thereafter during the term therein expressed, should and lawfully might
make, use, exercise, and vend, within the United Kingdom of Great Britain
and Ireland, the Channel Islands, and Isle of Man, an Invention for "Iж-
PROVEMENTS IN DOUBLE-CYLINDER CARDING ENGINES," (a communication from
abroad by Anton Girardoni, of Vienna, in the Empire of Austria,) upon the
condition (amongst others) that I, the said Louis Rudolph Bodmer, my
executors or administrators, by an instrument in writing under my, or their,
or one of their hands and seals, should particularly describe and ascertain the
nature of the said Invention, and in what manner the same was to be per-
formed, and cause the same to be filed in the Great Seal Patent Office within
six calendar months next and immediately after the date of the said Letters
Patent.
NOW KNOW YE, that I, the said Louis Rudolph Bodmer, do hereby
declare the nature of the said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:-
Double carding engines or carding engines with two main cylinders, also
known as "Oldham engines," are employed for the purpose of passing the
cotton over two main cylinders in succession, with the object of producing a
very fine and perfect fleece suitable for the finer numbers of yarns, as also for
the coarser ones of the best quality. In these machines the two main
cylinders with parts belonging to them are placed one behind the other in the
same frame, and the machine becomes of necessity very ponderous, requiring
a considerably increased driving power, and an amount of space which cannot
often be spared for them.
The present Invention consists in the construction of an improved double
carding engine which will produce the same amount of work as the double
carding engines hitherto employed, and which will occupy no more space
than an ordinary single cylinder engine. Instead of placing the two main
cylinders with their respective flats or rollers and clearers and other accessories
one behind the other on the same level the Inventor places them one above
the other, and in such a manner that the cotton from the scutchers enters
the first or upper cylinder on the same side of the machine from which
the finished fleece from the second or lower cylinder is delivered by the
doffer.
. In this improved double carding engine the main cylinders are made
smaller in diameter, namely, about 26 inches instead of from 36 to 48 inches
as heretofor; but owing to their disposition in the frame these smaller
cylinders offer nevertheless an equal amount of working surface for the place-

page_text: ment of the rollers and clearers and other parts, because the under side of the
cylinders, which in the ordinary carding engines is lost, becomes available.
Each main cylinder, has its own doffer, and the doffer of the first or top
cylinder delivers the fleece to the bottom or second cylinder. As the main
cylinders are made smaller in diameter the height of the improved carding
engine is not much more than that of the ordinary single carding engine,
whilst in length it is even less, because the cotton is fed and delivered on the
same side of the machine.
In order that the said Invention may be better understood, I will now
proceed to describe the same, reference being had to the annexed Sheet of
Drawings, and to the letters and figures marked thereon.
Fig. 1 represents the left-hand side elevation, and Fig. 2, the right-hand
side elevation of a double carding engine.
A is the frame of the machine; B, the upper main cylinder, and C, the
lower main cylinder. The cylinder C is set in motion by the driving belt a,
and communicates motion to the cylinder B through the short strap b. The
prepared cotton is introduced by the feed roller D, and by the licker-in E
conveyed to the upper cylinder B. The cotton is now subjected to the action
of a succession of working rollers F and clearers F¹ (in the present instance
six pairs), by which the greater portion of the cylinder B is surrounded. At
Z the fleece is removed from the cylinder B by the doffer cylinder G, from
which it is transferred by the cylinder. H to the second or lower main
cylinder C. The cotton is now passed over the greater portion of the second
cylinder, and again undergoes the operation of carding and combing in first
passing the three rollers J, and subsequently through the six cylinders K,
whereupon it is removed from the cylinder B by the doffer cylinder L, and
stripped of the latter by the doffer comb M, and finally passed by the
drawing roller N to the coiler. O is a box or trough for the reception of the
dust which falls from the licker-in Ę and cylinder B; P are knives or
blades, toothed or plain, for the purpose of clearing the waste from the
cylinders K.
It is evident that in place of the parts described in conjunction with the
two main cylinders, any other desirable combination of working rollers and
clearers, scutchers, flats, and other parts may be employed.
Having now described the nature of the Invention which has been com- 1
municated to, me, and the manner in which the same may be carried into
effect, I wish it to be understood that what I claim as the Invention to be
secured to me by the herein-before in part recited Letters Patent is, the
construction and use of double. carding engines in which the. two main

page_text: cylinders are placed one above the other in the manner and for the purpose
substantially as described.
In witness whereof, I, the said Louis Rudolph Bodmer, have hereunto
set my hand and seal, this Tenth day of November, in the year of our
Lord One thousand eight hundred and sixty-six.
L. K. BODMER.
(L.S.).