Improvements in Machines for Doubling Yarns or Threads.
Year: 1898

page_text: Date of Application, 4th Aug., 1898
Complete Specification Left, 4th May, 1899-Accepted, 17th June, 1899
PROVISIONAL SPECIFICATION.
Improvements in Machines for Doubling Yarns or Threads.
I, THOMAS QUINN, of Carrington Mills, New Bridge Lane, Stockport, in the
County of Chester, Mill Manager, do hereby declare the nature of this invention
to be as follows;-
This invention relates to improvements in machines for doubling yarns or
threads.
Hitherto in the doubling of yarns or threads, spools or bobbins with heads or
flanges have been generally used and the length of the traverse of the yarn
depended on the distance between the heads or flanges.
The object of my invention is to provide simple and effective means for wind-
ing in doubling frames the yarns or threads upon spools or bobbins without
heads or flanges, i.e. to impart to the ordinary lifting rail a movement that will
vary the traverse of the yarn or thread on the spool or bobbin at every layer
so as to build a bobbin taper at both ends.
To this end I mount on the free end of the heart cam lever a stud upon which
I secure an eccentric around which I fit a strap having an arm or lever to which
I secure the lifting chain. Upon the said stud I also secure a ratchet wheel in
gear with a pawl carried by a lever fulcrumed to the said stud and having a chain
connected thereto passing over a relatively fixed pulley, stud or projection.
At each down or up movement of the heart cam lever the said ratchet wheel is
moved by its pawl one tooth and the eccentric receiving a corresponding turn,
the throw of the said eccentric lever or arm is altered at every movement and
the chain of the lifting rail thus lengthened or shortened accordingly.
Yarns or threads wound on spools or bobbins in accordance with my invention
can be reeled or wound off more quickly than from spools or bobbins having
heads or flanges, as the yarn or thread can run freely off stationary spools or
bobbins endways, the drag caused by the yarn or thread having to pull headed
or flanged spools or bobbins round a spindle being obviated.
Dated this 3rd day of August 1898.
F. BOSSHARDT & Co.,
Agents to Applicant.
Improvements in Machines for Doubling Yarns or Threads.
I, THOMAS QUINN, of Carrington Mills Company Limited, New Bridge Lane,
Stockport, in the County of Chester, Mill Manager, do hereby declare the nature
of this invention and in what manner the same is to be performed, to be particu-
larly described and ascertained in and by the following statement; —
This invention relates to improvements in machines for doubling yarns or
threads.
Hitherto in the doubling of yarns or threads, spools or bobbins with heads or
Price 37

page_text: flanges have been generally used and the length of the traverse of the yarn
depended on the distance between the heads or flanges.
The object of my invention is to provide simple and effective means for wind-
ing in doubling frames, the yarns or threads upon spools or bobbins without
heads or flanges and to impart to the ordinary lifting rail a movement that will
vary the traverse of the yarn or thread on the spool or bobbin at every layer
and build a bobbin taper at both ends.
And in order that my invention may be more fully understood I have caused
to be appended hereunto one sheet of drawings marked with letters of reference
indicating like parts in the various figures, Figs. 1 & 3 being end views and
Figs. 24 respectively plans of a doubling frame showing my improvements
applied in two forms. Figs. 1 & 3* are detached views of the same.
In carrying out my invention and referring to Figs. 1, 1 & 2, I fix on the
free end of the heart cam lever a usually employed in doubling frames, a stud
upon which I mount an eccentric c and around the latter I fit a strap d having
an arm or levere to which I secure the lifting chain f. The said eccentric
is formed with or has secured to its side a ratchet wheel g having an uneven
number of teeth, with which gears a pawl h carried by a lever fulcrumed to
the said stud and having a chain k connected thereto and to the heart cam
lever a, passing over a pulley, stud or projection I fixed to the frame end. To
prevent the ratchet wheel 7 turning back unduly, a back pawl g¹ is employed
on an arm 1 secured to the stud b.
At each down movement of the heart cam lever a, the ratchet wheel g is moved
by its pawl h, 2 or more teeth and the eccentric c receiving a corresponding
turn, the throw of the eccentric lever e is altered at every movement and the
lifting rail chain f thus lengthened or shortened accordingly and the latter
being constantly under the control of the eccentric c bobbins are produced taper
at both ends.
A modification of my invention is shown in Figs. 3, 3 & 4, which consists
in dispensing with the eccentric strap d shown in the previously described
arrangement, passing the lifting chain † around the eccentric c and securing its
end to a bracket m carried by the heart cam lever a or to the latter itself.
Yarns or threads wound on spools or bobbins in accordance with my invention
can be reeled or wound off more quickly than from spools or bobbins having
heads or flanges, as the yarn or thread can run freely off stationary spools or
bobbins endways and the dragging of the headed or flanged spools or bobbins
round the spindles by the yarn or thread is obviated.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is;-
In ring doubling frames the heart cam lever a carrying at its free end a
ratchet wheely and eccentric c which latter constantly controls, lengthens and
shortens the rail lifting chain f, in combination with a pawl lever i fulcrumed
to the axis of the said ratchet wheel and eccentric, the said pawl lever i being
actuated by a cord or chain k running over a relatively stationary pulley or the
like and operated by the heart cam lever a, all substantially as and for the
purpose set forth.
F. BOSSHARDT & Co.,
4, Corporation Street, Manchester, Agents to Applicant.