Improved Apparatus for Drying Yarns of Fibrous Substances and the like.
Year: 1899

page_text: Improved Apparatus for Drying Yarns of Fibrous Substances and
the like.
I, HENRY CROFTS LONGSDON, Managing Director of the Firm of W. Summerscales
& Sons, Limited, of Keighley, in the County of York, Laundry Engineers and Machine
Makers, do hereby declare the nature of this invention to be as follows, that is to
say:
It relates to apparatus for drying yarns of fibrous substances and the like such as
rags and consists in constructing said apparatus so that it will perform the functions
desired of it quickly and efficiently.
In carrying my invention into effect I make use of a series of travelling aprons or
belts of trelliswork or open so as to permit the circulation of air through them, and
these belts I arrange to operate within a chamber or covered space in such a manner
one above another that on feeding the yarn or substance to be treated at one end of
the chamber it is received by the uppermost apron, carried by it to the other end and
there deposited upon the apron beneath which takes it back to the end whence it
started to be there deposited to the next or succeeding apron which again carries
through the chamber to finally discharge it, provided such apron is the last of the
series to receive same.
To cause a thorough circulation of heated air within the chamber, I arrange fans
or other air propelling mechanism to exhaust the air from within the chamber, and
the pipes or tubes through which such exhaustion is effected I arrange to enter the
chamber preferably beneath the aprons, while above such aprons I have feed pipes
which conduct air from air heating apparatus to supply that being exhausted, thus I
effect a circulation of heated air which may always be fresh air or which by suitable
valves may be made to circulate over and over again through both the heating
apparatus and the chamber if so desired.
In order to distribute the circulating air evenly throughout the chamber I have
perforated partitions above and below the travelling aprons so that on the air entering
the chamber through the feed pipes it is caused to impinge upon the uppermost
partition which spreads it causing it to pass through the perforations therein to
impinge upon the yarn and aprons beneath whence it escapes by the perforations in
the lower partition through which it is drawn by the exhauster as described.
To conduct the substance being treated from one apron to another, suitable guide
plates are mounted in proximity with the said aprons at such places, while to keep
the chamber closed against the inlet or escape of air, I have rollers arranged at the
feeding and exit openings to rise and fall as the substances pass beneath thus the open-
ings are at all times as fully covered as is possible.
110 0041
Jun 1900

page_text: Improved Apparatus for Drying Yarns of Fibrous Substances and
the like,
I, HENRY CROFTS LONGSDON, Managing Director of the Firm of W. Summerscales
& Sons, Limited, of Keighley, in the County of York, Laundry Engineers and •
Machine Makers, 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, that is to say :-
"It relates to apparatus for drying yarns of fibrous substances and the like such as
rags and consists in constructing said apparatus so that it will perform the
functions desired of it quickly and efficiently.
In order that ny said invention may be readily understood, I have hereunto
appended sheets of drawings illustrative thereof, to which, by figures and letters,
reference is made in the following description.
Figs. 1 and
drying apparatus.
represent side elevation and plan respectively of my improved yarn
Fig. 3 represents an end elevation of parts shown by Figs. 1 and 2, and as seen in
the direction of the arrow x, Fig. 1.
Fig. 4 represents a sectional elevation, drawn to an enlarged scale, of that part of
the apparatus at which the yarn or the like is fed thereto.
Fig. 5 represents an end elevation of parts illustrated by Fig. 4.
Figs. 6 and 7 are similar views to Figs. 4 and 5, but are illustrative of the delivery
end of the apparatus.
Figs. 8 and 9 represent a front elevation and plan respectively, drawn to a smaller
scale than Figs. 4 to 7 inclusive, of a sufficient portion of my improved apparatus to
show the method of driving the travelling brats or aprons hereinafter described.
Figs. 10 and 11 are detail drawings, enlarged scale, showing the method of con-
struction of the travelling brats or aprons which I preferably employ in my improved
apparatus.
Similar letters and figures of reference indicate similar parts throughout the
several views.
In carrying my invention into effect, I make use of a series of travelling aprons,
belts or brats a, a, a, preferably constructed as hereinafter described, so as to permit
the circulation of air through them, and these belts I arranged to operate within the
chamber A. The aprons or belts a, a¹, a², are provided with links to fit on to the
teeth of the chain wheels which drive them, said chain wheels being mounted in
adjustable bearings 6', while they derive their rotary motion from the cone pulley c
through the gear wheels 1, 2, 3, and 4, and chain wheels 5, 6, 7, and 8, and chain 9,
said chain wheels being so arrange that the shafts d, ani & are rotated in one
direction and those d¹ in the opposite direction in order that on the yarn or other
substance being fed on to the apron a it will be conducted on its surface to the
opposite end of the chamber A to be deposited on the apron a aud returned across
said chamber to fall upon the apron a which conducts it again across said chamber
to be deposited thereby on to the floor or on to another travelling belt or apron to be
taken or conducted away to any convenient place.
To cause a thorough circulation of heated air within the chamber A, I arrange
fans e, e¹, or other air propelling mechanisin to exhaust the air within the chamber
and the pipes or tubes ff, through which such exhaustion is effected I arrange to
enter the chamber A preferably beneath the aprons a, al and a², while above such
aprons have feed pipes, which conduct air from air heating apparatus h, h¹ to
supply that being exhausted, thus I effect a circulation of heated air which may

page_text: always be fresh air entering the heaters through the openings y, y', or which. by
closing the valves k, l, over said openings y, y', may be made to circulate over and
over again through both the heating apparatus h, h, and the chamber A if so
desired.
In order to distribute the circulating air evenly throughout the chamber A I have
perforated partitions m, m, above and below the travelling aprons a, a, a², so that
on the air entering the chamber through the feed pipes g, g', it is caused to impinge
upon the uppermost partition m which spreads it, causing it to pass through the
perforations therein and descend vertically to impinge upon the yarn and
aprons a, a, a, whence it escapes by the perforations in the lower partition m¹
through which it is drawn by the exhausters e, e¹ as described. By these means the
current or currents of air is or are evenly distributed throughout the chamber and
the substances under treatment are not inconveniently disarranged by such current
or currents of air.
To conduct the yarns or other substances being treated from one apron to another
guide plates n, n¹, are mounted to extend across the chamber A the width of the
travelling belts, by this means the substances under treatment are deposited in
suitable regular quantities from any one apron to the next beneath.
To keep the chamber A closed against the inlet or escape of air, I arrange
rollers o, o mounted on levers q, q¹ hinged at 8 s respectively, to cover the feeding
and exit openings p and pl, said rollers rising and falling as the substances pass
beneath thus the openings p, p' are at all times as fully covered as possible.
The aprons or travelling belts which I preferably employ in iny apparatus are
formed by fixing semicircular strips of wood or the like to the links 3 by means
of rivets at, and intervening between these strips I mount wires which are also
fixed to said links a³.
It will readily be seen that if desired I may employ a greater number of travelling
belts than are herein described and illustrated by the annexed drawings, and such
additional ones. I mount and operate in a similar manner to those marked a,
and a².
At the feeding end. of the machine I mount guides 10, 101 (see Figs 4 and 5) to
prevent the substances under treatment from falling from the travelling belt a at
such place.
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:-
1. In apparatus for drying yarns and the like, means whereby the current or
currents of air is or are evenly distributed substantially as herein specified.
2. In apparatus for drying yarns and the like, guiding pieces. for conducting
the substances under treatment from one travelling belt to another, substantially
as herein specified.
3. Apparatus for drying yarns and the like, the same being constructed and
arranged substantially as herein specified and as illustrated by the accompanying
sheets of drawings.
Dated this 20th day of March 1900.
HENRY C. LONGSDON,
per Samuel Hey,
Agent.