Improvements in Flyers for Doubling and Twisting Frames.
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
Improvements in Flyers for Doubling and Twisting Frames.
I, FERDINAND BOSSHARDT, of the Firm of F. Bosshardt & Co., of 4, Corporation
Street, Manchester, in the County of Lancaster, Patent Agent, do hereby declare
the nature of this invention, which has been communicated to me from abroad
by J. Weber & Co., of Uster, Switzerland, to be as follows:-
Hitherto the glass eyes employed in doubling and twisting flyers for guiding
the thread, have been secured into their seatings by sealing wax or similar stiff
binding mediums. In practice it has been found that when dropping the flyers,
the glass eyes burst owing to the concussion received so that they required re-
newing which the said method of securing made very troublesome. Besides,
the said glass eyes remaining always in the same position, the thread cut gradu-
ally into the same.
'
The object of this invention is to overcome the said difficulties by enclosing
the said glass eyes in a box or cavity having a readily removable closure. The
said glass eyes may however be surrounded in the said box or cavity by a soft
or elastic material.
When dropping a flyer, the glass eye will resist the concussion and is thus
not liable to burst. Its position may also be readily altered and thereby uneven
wear by the thread obviated.
By means of the said closure the glass eyes may be exchanged without
difficulty or use of special tools.
Annexed drawing shows one form in which my invention may be carried out.
Fig. 1 being a side view, Fig. 2 a section at line A-A of Fig. 1 and Fig. 3
a plan.
The flyer has three ring shaped glass eyes a, b, c through which the thread is
guided in the well known manner. Around the enclosed glass eye a small space
for play is provided which may be filled up by some elastic material rendered
secure in its seat by a closure adapted to suit the part of the flyer to which it is
applied. The glass eye a which guides the thread to the presser or finger is
positioned in the axis of rotation of the flyer, i.e. in the tubular end (flyer head) d
resting upon a ledge f in the same.
In front of the glass eye, a nut g is screwed in or over the said tubular end
which can readily be screwed off when desired to insert a fresh glass eye.
At the side of one of the legs of the flyer, two glass eyes 6 & c are employed
which serve to guide the thread onto the spool."
The first glass eye rests in a lateral projection h formed on the flyer over which
platek bent downwards is secured by a screw i. This plate is laterally movable
so that it can be moved from the seat of the glass eye (see position dotted lines
n Fig. 3) when required to change the latter.
The seat for the third glass eye c is at the end of the free end of the split leg
of the flyer in the shape of a slot o.
In order to insert the glass eye into the slot o the two halves of the flyer

page_text: leg 2, which spring, are drawn so far apart as the diameter of the glass eye
will require to permit of passing the eye between them.
The parts of the flyer where the yarn might come into contact with in passing
from one glass eye to the other, are formed with recesses so that the thread is
forced to run against the inner side of the glass eye whereby the friction between
thread and glass is reduced to a minimum and contact of the thread with the
flyer entirely obviated.
Dated this 16th day of May 1899.
Improvements in Flyers for Doubling and Twisting Frames.
I, FERDINAND BOSSHARDT, of the Firm of F. Bosshardt & Co., of 4, Corporation
Street, Manchester, in the County of Lancaster, Patent Agent, do hereby declare
the nature of this invention, which has been communicated to me from abroad
by J. Weber & Co., of Uster, Switzerland, and in what manner the same is to
be performed, to be particularly described and ascertained in and by the following
statement:.
-
Hitherto the glass eyes employed chiefly in doubling and twisting flyers for
guiding the thread, have been secured into their seatings by sealing wax or similar
stiff binding mediums. In practice it has been found that when dropping the flyers,
the glass eyes burst owing to the concussion received so that they required re-
newing which the said method of securing made very troublesome. Besides,
the said eyes remaining always in the same position, the thread cut gradually
into the same.
The object of this invention is to overcome the said difficulties by enclosing
the said eyes in a box or cavity having a readily removable closure. The
said eyes may however be surrounded in the said box or cavity by a soft
or elastic material, say, such as india rubber.
When dropping a flyer, the eye will resist the concussion and is thus not
liable to burst. Its position may also be readily altered and thereby uneven
wear by the thread obviated.
By means of the said closure the eyes may be exchanged without difficulty
or the use of special tools.
The drawing filed with the Provisional Specification shows one form in which
my invention may be carried out.
Fig. 1 is a side view, Fig. 2 a section at line A-A of Fig. 1, and Fig. 3
a plan.
The flyer has three ring shaped eyes a, b, c, through wihch the thread is
guided in the well known manner. Around the enclosed eye a small space
for play is provided which may be filled up by some elastic material rendered
secure in its seat by a closure adapted to suit the part of the flyer to which it is
applied. The eye a which guides the thread to the presser or finger is
positioned in the axis of rotation of the flyer i.e. in the tubular end (flyer head) d
resting upon a ledge f in the same.
In front of the eye, a nut g is screwed in or over the said tubular end, which
can readily be screwed off when desired to insert a fresh eye.
At the side of one of the legs of the flyer, two eyes 6 & c are employed
which serve to guide the thread onto the spool.
The first eye rests in a lateral projection h formed on the flyer over which a

page_text: plate & vent downwards is secured by a screw i. This plate is laterally movable
so that it can be moved from the seat of the eye (see position ¹ dotted lines in
Fig. 3) when required to change the latter.
The seat of the third eye c is at the end of the free end of the split leg of the
flyer, in the shape of a slot o.
In order to insert the eye into the slot o, the two halves of the flyer leg p, P
which spring, are drawn so far apart as the diameter of the eye will require to
permit of passing the eye between them.
The parts of the flyer where the eyes are seated and the yarn might come into
contact with, in passing through or from one eye to the other, are formed with
recesses, so that the thread is forced to run against the inner side of the eye
whereby the friction between thread and eye is reduced to a minimum and
contact of the thread with the flyer entirely obviated.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed, I declare that what
1 claim is:-
1st. Flyers for doubling and twisting frames, formed with cavities in which
are enclosed the eyes guiding the thread and which cavities can be readily opened
and the said eyes being not rigidly connected therewith.
2nd. Flyers for doubling and twisting frames, formed at suitable places with
cavities, in which the eyes guiding the thread are loosely employed, substantially
as described.
3rd. Flyers for doubling and twisting frames, formed at suitable places with
cavities in which are enclosed the eyes guiding the thread, each eye being sur-
rounded with elastic material fitting against the interior of the respective cavity.
4th. Flyers for doubling and twisting frames, having eyes for guiding the
thread which are incased at suitable places, substantially as herein before de-
scribed and illustrated in annexed drawings.
Dated this 15th day of February 1900
F. BOSSHARDT & Co.,
4, Corporation Street, Manchester, Agents to Applicant.