Improvements in Means or Apparatus employed in Spinning Yarns or Threads.
Year: 1893

page_text: Date of Application, 27th May, 1893
Complete Specification Left, 22nd Feb., 1894-Accepted, 24th Mar., 1894
PROVISIONAL SPECIFICATION.
Improvements in Means or Apparatus employed in Spinning Yarns
or Threads.
We JAMES MACKIE of Albert Foundry, 4 Albert Street Belfast, in the
County of Antrim Ireland Engineer, and SINCLAIR HUNTER of 160 Albert
Bridge Road Belfast aforesaid Foundry Manager do hereby declare the nature of
this invention to be as follows:-
In spinning yarns or threads it is sometimes desirable to work with a very short
reach and these improvements are designed to admit of the attainment of the
shortest possible reach being obtained, while at the same time the bottom and top
rollers of the spinning frame are kept at substantially their usual diameter.
In this our invention instead of using one top pressing roller as has heretofore
been the usual way we make use of two top pressing rollers both pressing on the
top roller and working independently of each other, so that the point of nip of lower
brass pressing roller with the top roller is brought below the centre point of the
top roller and consequently nearer the point of nip of drawing rollers. These
improvements further relate to the method of carrying the two top pressing rollers
and this is done by having the slide made in two pieces the top part being fixed to
the saddle in the usual manner while the bottom half is attached to the top half by
means of a swivel joint so that the two pressing rollers may be each bearing
without strain on the top roller. The bottom part of the slide is provided with a
double head for carrying the two pressing rollers, so that the pressure is as near as
possible in a line with the centre of the top roller.
These improvements can be easily applied to existing saddles of spinning frames,
and by their employment we attain the benefit of double grip on the fibres the two
pressing rolls acting independently of each other as explained.
7th day or may
WM. BROOKES & SON,
55 & 56, Chancery Lane, London, Agents for the Applicants.
Improvements in Means or Apparatus employed in Spinning Yarns
or Threads.
We, JAMES MACKIE of Albert Foundry, 4 Albert Street, Belfast in the
County of Antrim Ireland, Engineer, and SINCLAIR HUNTER of 160 Albert
Bridge Road Belfast aforesaid Foundry Manager, do hereby declare the nature of
this invention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :-
These improvements consist in the use of two fluted top pressing rollers, on wet
spinning frames for spinning flax, tow, hemp, jute or other similar fibre, so that the
shortest possible reach may be obtained while the top and bottom rollers of the
frame are kept at or substantially at their usual diameter. They further relate to
the method of carrying the two pressing rollers so that they are independent of
one another and each roller is pressing on the top or retaining roller without
strain.

page_text: DESCRIPTION OF THE DRAWINGS.
Fig. 1 shews by side view and Fig. 2 by front view the invention applied to one
form of saddle and Figs. 3 and 4 like views correspondingly of the invention
applied to the more ordinary form of saddle.
These improvements can easily be applied to existing saddles and Figs. 1 and 2
shew same applied to a form of saddle the subject of Patent granted to
Messrs. Hunter and Hunter No. 17176 dated 27th September 1892 while Figs. 3
and 4 shew it applied to an ordinary or armed saddle.
Instead of using one fluted top pressing roller as has heretofore been usual, we
make use of two fluted pressing rollers a and a¹ working independent of one
another, in a slide b common to both and with each pressing on the top or retaining
roller with the points of contact (or nip as it is called) x and y respectively
located above and below the centre line 1-1 of the retaining roller c.
The top
roller a forms an additional point of grip for the rove and the lower one a¹ from its
position below the centre line of the retaining roller c shortens the distance between
the point of nip y of the top rollers and the point of nip z of the bottom rollers to
a minimum thus constituting what is known as a short reach.
Fig. 5 shows a side view and Fig. 6, a front elevation of the slide b' for carrying
the pressing rollers. This consists of two pieces 6 and 6 the top part 6 being
fixed to the saddle d in the usual way, while the other part b¹ is attached to the
part 6 by means of a swivel joint e so that the two pressing rollers may each be
bearing without twisting strain on the top or retaining roller c. The bottom part bl
of the slide is provided with a double head so that the pressure is as near as
possible in a line with the centre of the retaining roller c.
Fig. 7 indicates a view substantially similar to Fig. 1, but to a larger scale and
shewing the ordinary spring wire as well as the centre lines of the various rollers,
1-1 being the centre line of the ordinary retaining roller c, 2-2 being that of
the roller a and 5-5 that of the roller a', 3-3 that of the bottom (generally
wood) pressing roller f and 4-4 that of the bottom drawing roller (generally of
brass) whilst g, 9, 9 shews the line of travel of the thread.
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 use of two fluted pressing rollers working in a slide common to both and
acting on a retaining top roller so that the points of contact (or nip as it is
commonly called) are located above and below the centre line of retaining roller.
The top pressing roller passing in contact with the retaining roller forming an
additional point of grip upon the sliver and the lower pressing roller from its
position below the centre line reducing the distance between the holding and
drawing points of bottom pressing roller and aforementioned retaining roller thus
constituting what is known as a short reach substantially as shown and described.
2. The use of a swivelling slide for carrying a pair of pressing rollers and
adapted to coöperate therewith so as to allow said rollers to take their true position
in relation to the fixed point of contact between the drawing rollers substantially as
shewn and described.
3. The combination or arrangement and use of two fluted pressing rollers,
as a, a supported relatively to the top retaining roller and so as to coöperate
therewith substantially as and for the purpose set forth.
Dated the 21st day of February 1894.
WM. BROOKES & SON,
55 & 56, Chancery Lane, London, Agents for the Applicants.