Improvements in or appertaining to Drying Chambers for Drying Wool and similar Animal Fibre.
Year: 1894

page_text: Date of Application, 22nd Mar., 1894
Complete Specification Left, 24th Dec., 1894-Aocepted, 26th Jan., 1895
Improvements in or appertaining to Drying Chambers for Drying
Wool and similar Animal Fibre.
We, JOHN DAWSON, of Mayfield, Milnrow, near Rochdale, in the County of
Lancaster, Engineer, and HENRY LOCKWOOD, of Black Rock Mills, Linthwaite,
near Huddersfield, in the County of York, Woollen Manufacturer, do hereby
declare the nature of this invention to be as follows:-
This invention relates to improvements in or appertaining to drying chambers
for drying wool and similar animal fibre particularly animal fibre that has been
treated with acid or the like to remove vegetable matter, and its object is to
rapidly dry the fibres at a comparatively low temperature.
For this purpose we supply the drying chamber with air heated and dried
by means of heating and drying apparatus consisting of a series of suitable
tubes or pipes fitted in a furnace. The furnace and tubes are so arranged that
as the air is drawn or forced through the tubes into the drying chamber it is
heated to the required temperature and any moisture it may contain at its
normal temperature is expelled, decomposed or reduced by the dry heat to which
it is exposed whilst passing through the tubes. Air heated in this manner more
readily absorbs the moisture from the fibres so that they may be dried
rapidly and at a temperature less liable to over-heat or damage the material.
We may form the said pipes or tubes of earthenware.
nore
DRACUP & NOWELL,
Bradford, Agents.
Improvements in or appertaining to Drying Chambers for Drying
Wool and similar Animal Fibre.
We, JOHN DAWSON, of Mayfield, Milnrow, near Rochdale, in the County of
Lancaster. Engineer, and HENRY LOCKWOon, of Black Rock Mills, Linthwaite,
near Huddersfield, in the County of York, Woollen Manufacturer, 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:-
This invention relates to improvements in or appertaining to drying chambers
for drying wool and similar animal fibre particularly animal fibre that has been
treated with acid or the like to remove vegetable matter, and its object is to
rapidly dry the fibres at a comparatively low temperature.
For this purpose we supply the drying chamber with air heated and dryed by
means of heating and drying apparatus consisting of a series of suitable tubes or
pipes fitted in a furnace. The furnace and tubes are so arranged that as the air
is drawn or forced through the tubes into the drying chamber it is heated to the

page_text: required temperature and any moisture it may contain at its normal temperature is
expelled, decomposed or reduced by the dry heat to which it is exposed whilst
passing through the tubes. Air heated in this manner readily absorbs the moisture
from the fibres so that they may be dried rapidly and at a temperature less liable
to over-heat or damage them.
Reference is to be had to the accompanying sheet of drawings forming a part of
this Specification, in which similar letters of reference indicate corresponding
parts in each of the figures.
Figure 1, represents a side view of the form of furnace we employ.
Figure 2, represents a vertical section of the same.
Figure 3. represents a front view of the furnace partly in section.
Figure 4, represents a sectional plan on the line y,
Figure 3.
The fire
The furnace A is built against the wall B of the drying chamber.
door C. the fire bars D and the flue E are of any ordinary form. A number of
iron tubes F are carried through the furnace and extend from the outer face of the
front wall A² of the furnace through the wall B into the drying chamber. The
front end of these tubes are enclosed by the casing G and a fan or air propeller H
(Figure 2) is fitted in the circular opening J in the front of the casing. The side
walls of the furnace are braced together by the wall plates K, K and K2, K2
respectively bolted together by the rods L. L and L. L².
The furnace is constructed to heat up the tubes F and maintain them more or
less at a red heat thus when the fan H is put into operation the air thereby forced
into the drying chamber is heated as it is passed through the tubes.
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 combination with a chamber for drying wool and other animal fibre, of a
furnace fitted with a series of tubes in communication with the said chamber and
provided with a fan or air propeller arranged to force air through said tubes into
the said chamber, substantially as herein shown and described.
Dated this 20th day of December 1894.
DRACUP & NOWELL,
Bradford, Agents.