of Carding or similar Machines.
Year: 1887

page_text: Date of Application, 15th Jan., 1887
Complete Left, 15th Oct., 1887
Complete Accepted, 15th Nov., 1887
of Carding or similar Machines.
We EDWIN GAUNT, Spinner, and WILLIAM FIRTH, Foreman Mechanic, both of
Grangefield Mill, Stanningley, in the County of York, do hereby declare the nature
of this invention for IMPROVEMENTS IN THE MECHANISM FOR ACTUATING THE DOFFING
COMB OF OARDING OR SIMILAR MACHINES to be as follows
This invention relates to the doffing comb, or knife employed for removing the
fibres from the doffer of carding, or similar machines; and it consists of novel and
useful improvements in the mechanism for actuating such comb, or knife.
We employ a crank, eccentric, or their equivalent for imparting the up and down
motion to the doffing comb rail; and the object of the invention is to enable such
crank or eccentric to also impart an oscillating motion to the said comb rail, and thus
allow the comb to clear the doffer during its up or back stroke.
For this purpose the doffing comb or knife is secured to a rail pivotted to arms
mounted on a rocking shaft in the ordinary manner. The connecting rod communi-
cating the up and down motion from the crank or eccentric to the said comb rail is
rigidly secured to such comb rail, or fixed to one of the pivots thereof thus, a slight
oscillating motion is simultaneously imparted to such comb rail, and the mechanism
is so arranged that in the down stroke of the comb rail the doffing comb carried
thereby is directed against the doffer, and in the up stroke is inclined therefrom.
The length of the said connecting rod relative to the throw of the crank, or
eccentric, determines the extent of the oscillating motion imparted to the comb
rail. Suitable balance springs, or weights may be fitted in connection with the
mechanism.
The pivots of the comb rail are preferably conical and such pivots work in
corresponding conical holes, or bearings, formed in the said arms on the rocking
shaft, thus enabling such bearings to be adjusted by moving the arms along the
rocking shaft. When the connecting rod communicating motion to the comb rail is
directly fixed thereto, the conical holes, or bearings in the arms do not pass through
such arms and a space is left at the end of the holes adapted to receive the lubricant,
and serve as a lubricator.
Dated thin 14th dan of T1007
DRACUP & NOWELL,
Bradford, Agents.

page_text: COMPLETE SPECIFICATION.
Improvements in the Mechanism for Actuating the Doffing Comb
of Carding or similar Machines.
We, EDWIN GAUNT, Spinner, and WILLIAM FIRTH, Foreman Mechanic, both of
Grangefield Mill, Stanningley in the County of York, do hereby declare the nature
of this invention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :-
This invention relates to the doffing comb or knife employed to remove the fibres
from the doffer of carding or similar machines, and it consists of novel and useful
improvements in the mechanism for actuating such comb or knife.
We employ a crank, eccentric or their equivalent for imparting the up and down
motion to the doffing comb rail as hitherto, and the object of this invention is to
enable such crank or eccentric to also impart the oscillating motion to the said comb
rail necessary to allow the comb to clear the doffer during its up or back stroke.
For this purpose the doffing comb or knife is secured to a rail pivoted to arms
mounted on a rocking shaft in the ordinary manner. The connecting rod communi-
cating the up and down motion from the crank or eccentric to the said comb rail is
rigidly secured to such comb rail, or fixed to one of the pivots thereof, thus a slight
oscillating motion is simultaneously imparted to such comb rail and the mechanism
is so arranged that in the down stroke of the comb rail the doffing comb carried
thereby is directed against the doffer and in the up stroke is inclined therefrom. The
length of the said connecting rod relative to the throw of the crank or eccentric
determines the extent of the oscillating motion imparted to the comb rail.
In order to fully describe our invention reference is to be had to the accompanying
drawing forming a part of this specification, in which similar letters of reference
indicate corresponding parts in all the figures.
Figure 1 represents an end view of a carding machine, showing the doffer, the doffing
mechanism and the side frames. Figure 2 is a side view of the same with the bracket
supporting the end of the rocking shaft omitted. And figure 3 is a plan view partly
in section on a larger scale of one of the arms mounted on the rocking shaft together
with a portion of the comb rail pivoted thereto.
The comb rail A is provided with a lug or projection B to which the top end of the
connecting rod C is rigidly bolted. The lower end of the said rod is connected to
the bearing D working on the crank pin E projecting from the disc F secured on the
shaft G mounted in the bracket H secured to the frames I. The said shaft is actuated
by the pully K driven by the band L. Conical pivots or journals M project from
the ends of the comb rail A and are adapted to fit in the conical bearings N formed
in the arms mounted in the rocking shaft P which rocks in brackets Q secured
on the top of the frames I. A space R is formed at the ends of the bearings N to
receive the lubricant for lubricating such bearings, and an oil hole is made above
such spaces by which to fill them. The arms O are capable of being moved along the

page_text: shaft P for the purpose of tightening the bearings N upon the pivots M and the set
screws S are provided to fix said arms. Counter weights T are preferably fixed on
the ends of the shaft P to balance the arms O and comb rail A.
An up and down motion is imparted to the comb rail by means of the connecting
rod working on the crank pin E, and the parts are so relatively arranged that
when the comb rail is coming down and reaches the half stroke as shown in figuro 2
the comb V mounted on such comb rail is inclined at a proper angle in respect to
the doffer U to remove the fibres therefrom. But as the said comb rail is rigidly
secured to the connecting rod C and is free to oscillate on the pivots M, and as the
motion of the crank pin E draws the bottom of the connecting rod C away from tho
doffer U during the up stroke the teeth of the comb V are inclined clear away from
such doffer.
In order to facilitate adjusting the comb in respect to the doffer the brackets Q in
which the rocking shaft P is mounted are divided so that the upper parts are capablo
of being moved towards or away from the doffer by means of the scrows Y and are
fixed after adjustment by the bolts W to the lower parts. The connecting rod C is
adjustably connected to the bearing D by the nuts ✗ so as to enable the height of
the comb to be adjusted.
Having now particularly described and ascertained the nature of our said Inven-
tion, and in what manner the same is to be performed, we declare what we
claim is.
1. In a carding machine, the improved construction and arrangement of mechanism
by which the connecting rod actuated by a crank or its equivalent and imparting the
up and down motion to the doffing comb rail also inclines the teeth of such comb
towards the doffer during one stroke and away from it during the return stroke,
substantially as herein shown and described.
2. The improved doffing mechanism, having the doffing comb rail pivoted between
arms mounted on a rocking shaft and rigidly secured to a connecting rod operated
by a crank or its equivalent, substantially as herein shown and described and for
the purpose specified.
3. The combination with the said doffing mechanism of conical bearings adapted
to pivot the comb rail between arms mounted on the rocking shaft, substantially as
herein set forth.
Dat this 14th dow of Ontahan 1007
DRACUP & NOWELL,
Bradford, Agents.