Improvements in and relating to Sow-boxes of Yarn Sizing Machines.
Year: 1894

page_text: Date of Application, 24th Nov., 1894-Accepted, 29th Dec., 1894
COMPLETE SPECIFICATION.
Improvements in and relating to Sow-boxes of Yarn Sizing
Machines.
JAMES GREGSON of the Firm of Gregson and Monk, Vulcan Iron Works
Preston in the County of Lancaster Machinist and Loom Maker, 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:-
My invention relates to improvements to sow box of sizing machines. The
ordinary sow boxes are made of solid wood, and are in some cases lined with
copper or zinc for the purpose of covering the joints to preserve the wood and
to prevent leakage. Inside these sow boxes are placed two or three perforated
copper pipes, running the full length of the same, these perforated copper pipes
are used for heating the size by steam and keeping the same at boiling heat
while the yarn is being run through the size. The great disadvantage of
existing size boxes is, that when the size as been left standing for a little time
and allowed to go cold, before the same can be used again, the steam must be
turned on to re-heat the size and before it can be raised to boiling heat there
is so much condensed water being forced through the perforated pipes into the
size which greatly dilutes the same, this is most detrimental to the sizing of the
yarn causing what are known as soft places in the warps, and when in the looms
there is always great difficulty in weaving these parts, and in some cases the size
becomes so diluted that it is unfit for use and must be thrown away.
To obviate this difficulty I construct a cavity sow box, the steam being con-
veyed into the cavity in any convenient manner. This cavity sow box may be
constructed of wood, iron, copper, brass, or any other suitable material, but I
prefer to make the same of sheet copper, rivetted, bolted, or soldered on to
suitable beading or frame work with lips or ears for bolting to the ordinary frame
sides.
It will be readily understood that a sow box so constructed would have a very
much greater heating surface, and enable the size to be brought to a boiling point
much quicker without diluting the size. The surplus heat from the outside of the
cavity size box might be utilized for drying the yarn if desired by placing a fan
underneath the sow box to throw the hot air on to the yarn.
In the accompanying drawing :-
Fig. 1. shows the outline of present existing sow box, end view. A are the
perforated copper boiling pipes for heating the size inside the sow box. B are the
sow rollers. C. is the copper immersion roller. Fig. 2. shows the outline of my
improved cavity sow box, end view. B are the sow rollers. C is the copper
immersion roller. D is the cast iron end of the cavity sow box which is prepared
to bolt against the inside of existing sizing machine frames. E is the outside case
which may be made of wood, iron, copper, brass or any other suitable material, and
fastened to the end plate D by means of bolts, screws, rivetts, solder, or any other
suitable means to make steam tight joints. F is the cavity which is fitted with
inlet and outlet pipe for steam. G is the inside sheet constructed of copper, brass,
zinc, or any other suitable material, and fastened in the same manner as the outside
case E. this sheet completes the cavity. The inside plate G and the outside
plate E may be strengthened by rings or made corrugated, if desired.
The steam is conveyed to the cavity F by an ordinary iron pipe and may be
connected either at the end or underneath, and the outlet for the steam and

page_text: condensed water at the opposite end. The cavity sow box if required could be
made less in depth, through dispensing with the perforated copper boiling pipes A
inside the sow box Fig. 1 and would thus allow a supply of fresh and clean size to
be used oftener. This method of heating size would be a very great saving
inasmuch as there would be no dilution of size by condensed water or steam.
I do not confine myself to the precise details described, as deviations may be
made therefrom without interfering with the main principle.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what I
claim is :-
The construction of a cavity sow box substantially as and for the purposes set
.forth.
Dated this 22nd das of N
100