Year: 1899

page_text: We, JOHN WITHAM, of Finsley Mills, Burnley, in the County of Lancaster,
Cotton Spinner and Manufacturer, and JAMES LORD, of 140, Branch Road, Burnley,
aforesaid, Carder, do hereby declare the nature of this invention and in what
manner the same is to be performed, to he particularly described and ascertained
in and by the following statement :-
The first part of this invention has reference to what is known as the trumpet
knocking-off motion for drawing frame calendar rollers, and consists in so construct-
ing the trumpet catch or providing it with bends or projections on its under side,
one of the said projections or bends being in close proximity to one calendar roller,
whilst the other projection is near the surface of the other calendar roller, whereby
should the sliver as it is passing between the nip of the said rollers become broken
and entangled with one or other roller owing to the existence of grit or foreign
or sticky matter in the sliver, which causes the sliver to adhere to the rollers, theu
which ever roller should become lapped with sliver in this way. the accumulated
material thereon raises the trumpet catch by bearing against the projection thereon
sufficiently to depress its snecked end and cause it to engage with the usual
vibratory finger connected to the rocking shaft rod of the knocking off notion, thereby
instantly stopping the frame.
The trumpet cover is preferably cut away at its curved end, so as to allow
of the sliver to lap round the front roller, and effect the stoppage of the.
frame.
The second part of this invention is designed to serve a dual purpose, namely, to
stop the frame on a can becoming full, and also to stop the frame should the sliver
become lapped or entangled around the mouth of the coiler, but the invention is
applicable for either of these purposes only.
In carrying this part of our invention into effect, we lengthen the stud on which
the usual vibratory finger of the knocking off motion is mounted, and pivot upon the
said stud a small two armed lever, one of the said arms being weighted by being
thickened in the body part, and formed with a flat web or extension, which extends
over and in close proximity to the mouth of the coiler, and in such a manner, that
should the sliver accumulate around the mouth of the coiler, instead of passing
through it, it will raise the weighted end of the two armed lever by its web or flat
formation, and depress the other end, which is formed with a catch extremity, which
engages with a sneck or notch formued in the rocking shaft rod of the knocking off
motion, instantly stopping the frame. The said weighted end of the two armed lever
is formed with a projection carrying an adjustable stud or screw, which comes against
the frame, and by means of which the fall of the weighted lever is limited.

page_text: The mouth of the coiler is formed with one or two serrations or teeth to retard and
enable the sliver to accumulate at this point to raise the weighted catch, and stop the
frame as described.
On the web or flat formation of the weighted end of the two armed lever is
formed or fixed a small lug. The coiler, when a can is full, is raised by the
accumulation of sliver in the can sufficiently to hear against the said lug on the
weighted end of the two armed lever, so as to depress the other end of such lever, and
stop the frame.
In order that our invention may be fully understood, we have hereunto attached
the accompanying sheet of drawings, marked with figures and letters of reference.
Fig. 1 is a sectional elevation of the first part of our invention for the stoppage of
the frame on the breakage of the sliver and it becoming lapped round either
calendar roller. Fig. 2 is a sectional elevation of the second part of our invention
for stopping the frame, when a tin is full, or on the accumulation of sliver
around the mouth of the coiler, thereby running to waste, instead of passing
through the same.
Referring to the first part of our invention represented in Fig. I, A is the trumpet
catch B the trumpet, C the trumpet cover, DE the calendar rollers, F the vibratory
finger of the stop motion, and G the rocking shaft rod.
This part of our invention consists essentially in providing the trumpet catch A
with two points or projections H and J, which come close to the respective calendar
rollers D and E, so that if the sliver be possessed of grit or foreign or sticky matter,
which adhering to the surface of either one or the other calendar roller, breaks the
sliver, and drags it round the roller, causing it to run to waste, the accumulation of
sliver on the roller bears against the bend or projection H or J as the case may be,
and raises this end of the trumpet catch and depresses the other end with catch
extremity K, which comes in contact with the vibratory finger F of the stop motion,
thereby stopping the frame in the usual manner.
The second part of our invention illustrated in Fig. 2 will be next described. We
lengthen somewhat the usual stud L of the vibratory finger F of the stop motion,
and mount thereon, a two armed lever M, formed at one end with a catch N, and at
its other end weighted or thickened at O, and extended with a flattened or web-
shaped end P, which projects near the mouth of the coiler, which is formed with
teeth or serrations Q. In case the sliver should accumulate round the mouth of the
coiler, instead of passing through it, it becomes entangled between the teeth Q, and the
end of the lever M in close proximity, raising the same and depressing the other
end of such lever, thereby causing its catch N to engage with the notch R formed in
the rocking shaft rod S of the knocking off motion, and stopping the frame. The
end P of the lever M is also formed with a lug T, which projects sufficiently near the
coiler that when a sliver tin or can is full, the accumulation of sliver will raise
the head of the coiler, and bring it against such projection or lug, thereby raising end
of the lever M, and stopping the frame as described above.
The lever M is formed with a projection U carrying an adjustable stud or screw V,
which bears against the end of the frame W, and limits the fall of the weighted end
of the lever M to the required degree. The screw or stud V is screwed into a tapped
hole in projection U and secured by a lock nut.
In some instances it may be requisite to mount the lever M on a separate stud,
instead of being pivotted to the stud of the vibratory finger F as herein before
described.
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 that what we
claim is :-
1. The improved construction of trumpet catches of drawing frames by forming
them with bends or projections such as H and J to come in close proximity to the
surface of calendar rollers D and E, and to serve the purpose, substantially as described

page_text: 2. The improved means of stopping drawing frames, either on the accumulation of
sliver around the mouth of the coiler, or on a sliver can becoming full, or for one of
such purposes, consisting of pivotted or weighted catch M, arranged and acting,
substantially as described, and illustrated in Fig. 2.
Dated this with dose of a 1900
RICHMOND & Co.,
Chartered Patent Agents, 12, Standish Street, Burnley.
RICHMOND & Co.,
Chartered Patent Agents, 12, Standish Street, Burnley.