IMPROVE- MENTS IN MACHINERY FOR TREATING COTTON AND OTHER FIBROUS MATERIALS
Year: 1860

page_text: PROVISIONAL SPECIFICATION left Henry Bosshardt and Otto Dingler at
the Office of the Commissioners of Patents, with his Petition, on the
30th January 1860.
We, HENRY BOSSHARDT and OTTO DINGLER, of Paris, in the Empire of
France, do hereby declare the nature of the said Invention for "IMPROVE-
MENTS IN MACHINERY FOR TREATING COTTON AND OTHER FIBROUS MATERIALS," to
be as follows:-
This Invention relates to that class of machines known as carding machines
or carding engines, and consists in novel arrangements or dispositions of certain
of the parts of such machines, and of improvements in the construction and.
mode of employing other parts thereof.
Instead of constructing carding machines as heretofore, I employ a rotating
main card drum or main cylinder without any flat top cards, or rollers em-
ployed as substitutes therefor; I mount the main card drum within suitable
framing, and I dispose the fly cards and the doffer towards each other and
the main cylinders so as to enable these three cylinders to perform the entire
work of carding. To enable this to be effected, I place the fly card above
the doffer, so that it is in contact with the main card drum or main cylinder,
whilst it is removed out of contact with the doffer to a greater or lesser degree
as may be required, but is never in contact therewith. The fly card revolving
at a higher speed than the main card drum or cylinder, opens and straightens
the fibres, and throws them between the main cylinder and the doffer, whilst

page_text: the process of carding is finished, the fibres being taken from the main cylinder
by the doffer.
Instead of allowing the fly card to revolve only between two fixed bearings,
as is usual, I permit a slight amount of end play or longitudinal motion in the
bearings in which it works.
Instead also of fitting the bearings or bearing blocks ridgidly between two
guiding or fitting surfaces or slots, 1 construct all the bearings so that they
are held between points or pivots capable of adjustment, and which permit
freedom of motion of the bearings, and prevent irregular wear.
For the purpose of enabling a higher velocity to be given to the working
parts of carding machines, I construct the connecting rods for transmitting
the alternate or reciprocating movements in the following manner :-I bore
the ends of the rods, or the enlargements formed thereon, of a size suited for
receiving the pins or studs which are to turn therein, and make an opening
therein in the direction of the axis, so that the two sides of the pin-hole or
stud-hole thus prepared may be brought together either by a screw or bolt
and nut capable of adjustment.
Instead of fitting and working the journals of the axis of the comb in
metal bearings, I employ hard wood for such bearings, and I introduce
between such wooden bearings, and the frame or seat in which they rest,
india-rubber packing, and thus diminish the effect or vibration produced by
the rapid movement of the comb.
By thus simplifying the machine, and introducing the improvements in the
means of transmitting motion to the card and in preventing vibration therein,
I am enabled to work at considerably higher velocity than is at present
attainable by existing means, and moreover in machines constructed according
to my Invention, the fibres cannot become twisted on to or around the teeth
of the cards, as is often the case when top cards or workers are employed.
In applying the present Invention, two or several fly cards and doffers may
be arranged to work around and in connection with a main card drum or
main cylinder.