Improvements in Flyers for Roving Frames.
Year: 1897

page_text: Date of Application, 21st Dec., 1897-Accepted, 22nd Jan., 1898
COMPLETE SPECIFICATION.
Improvements in Flyers for Roving Frames.
I, THOMAS FRANCIS DUNN, of 4, Charles Street, Hyde Park, in the County of
Norfolk, and State of Massachusetts, United States of America, Gentleman, do hereby
declare the nature of this invention and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:
My invention relates to flyers for roving frames which consist essentially in a
hollow boss which fits upon the spindle of the frame, a solid downwardly depending
leg, an opposite hollow leg, a presser weighted finger pivoted to said hollow arm and
provided with a shoe at the lower end. In use the roving from the rolls passes
down through the said boss, then through the hollow arm, and around the presser
finger and through an eye in the shoe at the lower end of the presser finger, to the
bobbin. The rail carrying the bobbin is, by suitable mechanism well-known to
those skilled in the art, made to traverse vertically, the flyer with its presser finger
shoe, while rotating or having a circular motion, maintains the same vertical height.
As each layer of roving is wound on the bobbin, the traverse of the bobbin is
shortened, so that each successive layer of roving is shorter than the preceding
one, so that the finished bobbin will taper at each end.
The above description of flyer is defective in that it is impossible to wind a
perfect bobbin thereon, owing to the fact that the presser finger is pivoted to a
fixed point on the hollow arm of the flyer, whereby the shoe in moving away from
the bobbin travels in the arc of a circle instead of in a horizontal line, as it should.
By thus moving or swinging in the are of a circle, the shoe does not maintain the
same vertical height which to a certain extent will counteract the effect of shorten-
ing the traverse making the bottom taper of the bobbin too obtuse, while the upper
taper is too acute.
Another serious defect or disadvantage is, that when the flyer is taken off or
doffed, the weighted end of the presser finger will fall down and reverse the posi-
tion of the finger, turning it upside down, so that it will require the use of both
hands in doffing, one hand to take off the flyer, and the other to hold the presser in
place.
The object of my invention is to provide an improved construction of flyer,
whereby the presser shoe will swing outward in a horizontal plane, and which will
also retain its proper position when the flyer is removed or taken off the spindle.
The invention consists in the novel construction and combination of parts herein-
after fully described and claimed.
In the accompanying drawing:-
Fig. 1 is a side elevation of a flyer for a roving machine constructed in accord-
ance with my invention, showing the same as it appears in use.
Fig. 2 is a view of the flyer removed from the frame.
Fig. 3 is a detail view.
In the said drawing the reference numeral 1 designates the spindle of a roving
frame, and 2 the bobbin mounted thereon. These may be of any ordinary or suit-
able construction and form no wart of the present invention.

page_text: The numeral 3 designates the nose or boss of the flyer, provided with the usual
solid arm 4 and opposite hollow arm 5. This arm 5 near its lower end is pro-
vided with two studs 6 and 7, one above the other, which form the pivots on which
the presser finger 8 swings. This presser finger is provided with the usual weighted
upper end 9, and with the presser shoe 10 at the lower end. At or near the centre
the presser finger is formed with a slot 12, which may be vertical or inclined, with
which the stud 6 engages and above the same is provided with an extension 13
formed with an inclined or segmental slot 14 with which the stud 7 engages. In
operation when the presser shoe is swung outward by the successive layers of the
roving, it will move outward in a horizontal plane the inclined slot 14 and the
stud causing the finger to gradually rise as the shoe moves, as seen by the dotted
lines Fig. 1, instead of moving in the arc of a circle, as in the case of the flyers
before referred to. Again the finger not being fixed to its pivot its whole weight
will be utilized in use, thus allowing it to be made much lighter.
When the flyer is removed the slots and studs will limit the movement of the
finger and prevent its turning upside down.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:
1. In a flyer of the character described, the combination with the hollow arm,
of the presser finger loosely pivoted thereto and vertically movable thereon, sub-
stantially as specified.
2. In a flyer of the character described, the combination with the hollow arm
and the studs near the ends thereof, of the presser finger formed with a slot with
which the lower one of said studs engages and an inclined slot with which the upper
stud engages, substantially as specified.
Dated this 21st day of December 1897
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, W.C., Agents.