Year: 1886

page_text: We JOHN THOMAS KERSHAW and EDER KERSHAW Junior both of Brook Cottage
Littleborough in the County of Lancaster Engineers do hereby declare the nature
of our said invention to be as follows:-
Our invention is applicable to tentering and drying machines, which machines
are used for the purpose of stretching and drying cloth, and has for its object to
transmit steam or hot air at convenient parts thereof in close proximity to the
selvages or outer sides of the cloth traversing through the machine; by which
arrangement we claim to more effectually dry the selvages or outer sides than
heretofore.
Our apparatus consists of suitably providing the "panels" forming the two sides
or framing of a tentering machine which are well understood, with conveniently
formed passages or thoroughfares near the chain or "gill" races at the upper and
lower extremities thereof but, upon opposite sides; that is, the passages are on the
inner sides, and the chain races are on the outer sides as heretofore. The thorough:
fares or passages are cast with the "panels" or if desired, may be attached to the
same by suitable means as may be required for the purpose of applying our
contrivance to existing machines.
The passages are provided on each separate and consecutive "panel" the
extremities of the thoroughfares are jointed together by the use of suitable packing
so as to make the joints steam or air tight, the upper passages at the extremities
or ends of the machine are suitably connected to the lower passages, thus forming
continuous thoroughfares through the machine at the selvage parts and in the
direction of the traverse of the cloth.
A length of the fabric is carried by the aid of the "gills" and caused to traverse
from the upper heated or drying surface of the machine to the lower surface thereof
as is well known, the selvages or outer sides of the cloth are caused to pass or
traverse immeadiately above and below the passages or thoroughfares, at the upper
and lower parts of the "panels" or sides of the machine; the whole length thereof,
and the thoroughfares are situated on the sides of the "panels" nearest to the
selvages of the cloth on each side in the machine, and extends therefrom outwards
towards the central part thereof, and may be of circular or any desired form but,
TD 071

page_text: we preferably desire to form the sides of the passages or thoroughfares presented to
the surfaces of the cloth with plane or level surfaces.
When all the parts of the thoroughfares are connected together the interior
thereof have a communication with a steam boiler or suitable steam chamber,
steam is caused to pass through the thoroughfares the surfaces of which when
heated, thus effectually evaporates the moisture at or near the selvages or outer
sides of the cloth; we may if desired pass heated air through the thoroughfares by
means of a suitable connecting tube or tubes, with any one or more of the hot air
tubes of the machine as is well known, also may if desired, have open channels by
removing the sides or portions of the thoroughfares in close proximity with the
surfaces of the cloth; thus hot air is allowed to be freely transmitted to the cloth
at the parts required to be dried:
חד.נ.י.ת
1.
T
1000

page_text: We JOHN THOMAS KERSHAW and EDER KERSHAW Junior both of Brook Cottage
Littleboro in the County of Lancaster Engineers do hereby declare the nature.
of our invention for IMPROVEMENTS IN TENTERING AND DRYING MACHINES and
in what manner the same is to be performed, to be particularly described and.
ascertained in and by the following statement:-
Our invention relates to machines known as tentering and drying machines and
used for the purpose of drying cloth and is adapted and arranged in such machines
Bo as to effectually dry the "lists" or outer sides of the fabric during its passage
through the machine as in the machines now in use it is found that the outer sides
are not thoroughly dried.
In order that our invention may be understood we have reference to the
accompanying sheet of drawings, wherein like letters of reference indicate like
parts throughout the same. Fig. 1 is an elevation of so much of the framing or
panels of a tentering or drying machine as is necessary to illustrate our invention.
shewing the bead portion and receiving end of such a machine.
Fig. 2. is a plan thereof.
Fig. 3. is a cross section thro A. A shewing sections of the panels with the
steam passages and so much of the arrangement for supplying steam or hot air as.
is necessary to illustrate our invention,
Fig. 4, is a section thro B. B. shewing section of panels and steam or hot air
passages and connections for carrying off condensed steam from the steam passages.
In convenient situations and, at the upper and lower parts of the panels C. C¹
forming the sides of a tentering and drying machine as is well known, on each
side of the framing being the inner sides see Fig. 3, we provide or employ any
number of passages or thoroughfares, but we preferably employ the number and.
applied in manner as indicated in Figs. 3 and 4 and lettered D. Ď¹ D' D³, the same
being cast with, and forming parts of the panels of the machine, if desired we may
affix the same thereto by suitable means as may be necessary and as the case may
be, more particularly when our invention is required to be applied to machines
now in use.
The extremities of the passages or thoroughfares upon or applied to each panel
are conveniently joined together so as to form continuous thoroughfares of any
desired length according to the length of machine employed, or may be connected by
any convenient number of tubes N N¹ to admit steam or hot air from one passage to
another see Fig. 2, on each consecutive panel, the thoroughfares are suitably connected
at convenient parts by suitable inlet and outlet tubes E, E¹, E and E-the outlet
tubes being E and E-for the admission therein and exit therefrom of heated or
condensed vapour respectively passing through the said thoroughfares for a purpose
which will be hereinafter understood, the said tubes E and E' are provided with
glands R, R¹ to allow for contractions or expansions when the machine is required
for various widths of material, and which machine is regulated by screw roda S S¹
as is well known.
.
Portions of the chains F F¹ carrying the gills G. G by which gills the cloth or
fabrio is held in the machine during the process of drying as is well known, are

page_text: caused to extend from the chain races H. H' see Figs. 3 and 4, according to our
invention they are situated in close proximity to the surfaces of the steam tubes or
thoroughfares D. D¹ D' D³ see Fig. 3. therefore the selvages or outer sides of the
cloth or fabric K are situated conveniently near heated surfaces, and when the
wheels L. L' rotate or the machine operates obviously the outer sides or selvages
of the cloth or fabric traversing through the machine may be more quickly and
effectually dried than heretofore without such means which is the object of our
invention.
An essential feature of our invention consists of providing the chain races H H
. on the outer sides of the panels see Figs. 3 and 4, instead of inside as heretofore,
also providing thoroughfares of such forms so as to present large areas of heating
surfaces to the selvages or outer sides of the cloth, the thoroughfares being cast to,
or contiguous to the panels or framing of the machine, evidently by the aid of
conduction the panels C. C¹ will become heated, and will therefore tend to increase
or augment the temperature of the air entering the machine from other sources
well known, thus will further aid the process of drying the cloth at other parts
than the selvages.
By our arrangements we are enabled to obviate the escape or useless employment
of hot air at the inner sides of the framing of the machine, as it will be observed
by referring to Figs. 3 and 4 that the thoroughfares D. D¹ D' D' as therein
indicated will prevent the escape of hot air otherwise than through the material
undergoing the process of drying, thus the hot air entering the machine is wholly
utilised, we also employ projecting pieces O, O' on the upper outer sides of the
thoroughfares D. D₁ forming channels so as to prevent any refuse or matter that
may be deposited from the cloth on the heated surfaces P. P₁ whilst traversing
through the machine, thereby avoiding any damage or soiling of the material
which may be caused by such matter, if necessary we may affix to the parts of the
chains F F passing over the heated surfaces suitable projections T caused to enter
into the channels in such positions that when the chains are in motion the pro-
jections will clear out the channels of any refuse that may have collected therein
and cause the same to pass out at the ends of the framing of the machine into boxes
or receptacles conveniently provided for such purposes.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is,
1. The panels or pieces C. C¹ provided with thoroughfares or passages, D. D¹
D' D substantially as and for the purposes herein fully set forth and described in
the drawings hereunto annexed.
2. The combination of the thoroughfares D. D¹ D' D³ and the chain races, H. H¹
at the upper and lower sides of the panels O. C', with the channels formed by the
projections O. O¹ the steam or hot air inlet tubes or pipes E and E¹, the outlet
tubes E and E³, the glands R. and R¹ the junction or connecting tubes N N¹
substantially as and for the purposes herein fully set forth and described in the
drawings hereunto annexed.