CERTAIN IMPROVEMENTS IN MACHINERY FOR PREPARING COTTON AND OTHER FIBROUS MATERIALS
Year: 1876

page_text: LETTERS PATENT to John Greenwood, Cotton Carder, and Holland Taylor,
Foreman Mechanic, both of Oldham, in the County of Lancaster, for the
Invention of "CERTAIN IMPROVEMENTS IN MACHINERY FOR PREPARING COTTON
AND OTHER FIBROUS MATERIALS."
Sealed the 13th March 1877, and dated the 29th September 1876.
PROVISIONAL SPECIFICATION left by the said John Greenwood and Holland
Taylor at the Office of the Commissioners of Patents on the 29th September
1876.
JOHN GREENWOOD, Cotton Carder, and HOLLAND TAYLOR, Foreman Mechanic,
both of Oldham, in the County of Lancaster. "CERTAIN IMPROVEMENTS IN
MACHINERY FOR PREPARING COTTON AND OTHER FIBROUS MATERIALS."
Our Invention is applicable to slubbing, intermediate, and roving frames, and it
consists in an improved combination of machinery for throwing the driving strap
from the fast to the loose pulley, and thereby stopping the machine when the
requisite number of layers of sliver or roving have been wound on the bobbin or
spool.
To the tappet lever forming part of the ordinary change motion is connected a
catch taking into a ratchet wheel to which is fixed a spur wheel gearing into a
second spur wheel on the face of which is fixed a cam. When this cam has been
turned once round the bobbins or spools are full, the cam then releases the end of a
catch lever connected to the ordinary knocking off lever which throws the driving
strap from the fast to the loose pulley, thereby stopping the machine.
The spur wheels above referred to must be changed to suit the counts of sliver or
roving.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by the
said John Greenwood and Holland Taylor in the Great Seal Patent Office on
the 28th March 1877.
JOHN GREENWOOD, Cotton Carder, and HOLLAND TAYLOR, Foreman Mechanic,
both of Oldham, in the County of Lancaster. "CERTAIN IMPROVEMENTS IN
MACHINERY FOR PREPARING COTTON AND OTHER FIBROUS MATERIALS."
Our Invention is applicable to slubbing, intermediate, and roving frames, and it
consists in an improved combination of machinery for throwing the driving strap
from the fast to the loose pulley, and thereby stopping the machine when the
requisite number of layers of sliver or roving have been wound on the bobbin or
spool.
And in order that our Invention may be fully understood and readily carried
into operation, we will proceed to describe the accompanying Sheet of Drawings, in
which Fig. 1 is an end view and Fig. 2 a front view of part of an ordinary slubbing,
intermediate, or roving frame, to which our improvements are applied.
a is one of the intermediate frames; b, the roller beam; c, the tappet lever
forming part of the change motion; and d, the knocking off lever, all of which are
made in the usual manner.
To the lever c is jointed the catch e taking_into_the ratchet wheel f, which is
fixed on the same shaft as the spur wheel this spur wheel gears into the spur
wheel h, in the face of which is a segmental slot; the cam i is mounted on the
same stud as the wheel h, and from this cam projects the pin which enters the
segmental slot in the wheel h. To the knocking off lever d is jointed the catch j
which bears upon a retaining notch. The catch e is held in gear with the ratchet
wheel by the spring e¹, the lower end of which is connected to a pin projecting
from the retaining catch lever m, which is also held in contact with the ratchet
wheel by the spring m¹. When the frame is at work every vibration of the
change lever c causes the catch e to move the ratchet wheel fone tooth, the wheel g
thus imparts motion to the wheel h, and when the required number of coils of sliver
or roving has been wound on the bobbins or spools, the catch j is lifted off its
retaining notch by the cam i, and the spring 1 then acts on the knocking off lever d
which throws the driving strap from the fast to the loose pulley, thereby stopping
the machine. As soon as the cam i has released the catch j, the segmental slot in
the wheel allows the cam to full over, so that when the frame is again set on the
notch in the catch j can drop on to its retaining piece.
The spur wheels and are changeable, so that the cam i may be brought into
operation to release the catch j after the required number of coils has been wound
on according to the counts of the sliver or roving.
In some cases it may also be necessary to change the ratchet wheel f
Having thus stated the nature of our Invention and described the manner of
performing the same, we wish it to be understood that we do not intend, to limit
ourselves to the details given, as the saine must be varied according to the peculiar
construction of the frame to which our improvements are applied, we claim the
ratchet wheel actuated from the change motion, the change wheels g and h, the
cam i, and the catch j, or their equivalents acting in the manner and for the purpose
described.
In witness whereof, we, the said John Greenwood and Holland Taylor, have
hereto set our hands and seals, this Twenty-fourth day of March, One
thousand eight hundred and seventy-seven.
JOHN GREENWOOD. (LS.)
HOLLAND TAYLOR. (L.S.)
.