IMPROVEMENTS IN MACHINERY OR APPARATUS FOR DRYING WARPS OF YARN OR THREAD, AND WOVEN FABRICS
Year: 1858

page_text: LETTERS PATENT to John Petrie, the younger, of Rochdale, in the County.
of Lancaster, Ironmonger, for the Invention of "IMPROVEMENTS IN
MACHINERY OR APPARATUS FOR DRYING WARPS OF YARN OR THREAD, AND
WOVEN FABRICS."
Sealed the 17th December 1858, and dated the 30th June 1858.
PROVISIONAL SPECIFICATION left by the said John Petrie, at the
Office of the Commissioners of Patents, with his Petition, on the 30th
June 1858.
I, JOHN, PETRIE, the younger, of Rochdale, in the County of Lancaster,
Ironmonger, do hereby declare the nature of the said Invention for "IMPROVE-
MENTS IN MACHINERY OR APPARATUS FOR DRYING WARPS OF YARN OR THREAD
AND WOVEN FABRICS," to be as follows:--
My Invention consists in an arrangement in which the apparatus that
conveys heat, and the chamber in which the articles to be dried are caused to
travel, and also the necessary apparatus for effecting such motion are com-
bined together, so as to constituie a machine complete in itself.
construct a chamber provided with rollers over which the yarn or
caused to travel in a vertical direction. Beneath I place a steam pipe or
other source of heat, and under that a revolving fan for driving the heated
air upward, the whole being connected together by suitable framework.
Thus, I
cloth is

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said John Petrie, in the Great Seal Patent Office on the 29th
December 1858.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
PETRIE, the younger, of Rochdale, in the County of Lancaster, Ironmonger,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Thirtieth day of June, in the year of our Lord
One thousand eight hundred and fifty-eight, in the twenty-second year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said John Petrie, the younger, Her special license that I, the said John
Petrie, the younger, my executors, administrators, and assigns, or such others
as I, the said John Petrie, the younger, my executors, administrators, and
assigns, should at any time agree with, and no others, from time to time
and at all times thereafter during the term therein expressed, should and
lawfully might make, use, exercise, and vend, within the United Kingdom
of Great Britain and Ireland, the Channel Islands, and Isle of Man,
an Invention for "IMPROVEMENTS IN MACHINERY OR APPARATUS FOR DRYING
WARPS OF YARN OR THREAD, AND WOVEN FABRICS," upon the condition, amongst
others, that 1, the said John Petrie, the younger, by an instrument in
writing under my hand and seal, should particularly describe and ascertain
the nature of the said Invention, and in what manner the same was to be
performed, and cause the same to be filed in the Great Seal Patent Office
within six calender months next and immediately after the date of the said
Letters Patent.
NOW KNOW YE, that I, the said John Petrie, the younger, do hereby
declare the nature of my said Invention, and in what manner the same is
to be performed, to be particularly described and ascertained in and by
the following statement and accompanying Drawings (that is to say):-
My Invention consists in an arrangement in which the apparatus which
conveys heat and the chamber in which the articles to be dried are caused
to travel, and also the necessary apparatus for effecting such motion are
combined together, so as to constitute a machine complete in itself. Thus,
I construct a chamber provided with rollers over which the yarn or cloth is
caused to travel in a vertical direction. Beneath I place a steam pipe or
other source of heat, and under that a revolving fan for driving the heated air
upward, the whole being connected together by suitable framework.
Fig. I represents my improved drying apparatus in elevation; Fig. 2 is a

page_text: longitudinal section; and Fig. 3, an end view. The framework and casing
are shewn at a, constituting a chamber within which the goods are dried, and
provided with doors b, by which access to the interior may be obtained. At
the lower part of this chamber are two fans c, c, which, by their revolution,
draw air through apertures formed in the casing, and drive it upward between
steam pipes d, where it becomes heated, and subsequently passes over the
goods to be dried, which are caused to travel onward over rollers e, as shewn
by the red line, after which the air so driven upward escapes at /. The
apertures through which the air passes to the fans are formed at the ends of
boxes g, through which there are steam pipes h, so that it becomes heated
previously to being driven upward.
Having specified the main features of the apparatus, I will now point out
the details thereof which I have adopted. The main driving shaft is shewn
at i, upon which the fan c is mounted; on this shaft is a pinion, which, by
means of the train of gearing shewn at Fig. 1, by the pitch lines imparts a
slow rotatory motion to a shaft k, on which is a bevil pinion k communicating
motion by means of others m, m, to the longitudinal shaft I, which carries a
series of bevils for driving the rollers e. Upon the axis of the bevils m, m*, is
a surface roller n, driving, by means of gearing at o, another surface roller p,
there being an intermediate, so that these two surfaces may run in the same
direction, and above them is situate the roller q, which may be a roller beam of
a loom, upon which the cloth or yarn is wound. The pinion m runs loosely.
upon its axis, but is capable of being connected therewith at pleasure, by
means of a sliding clutch s, which may be moved by a rod t, thereby enabling
the attendant to arrest the motion of the surface rollers when necessary.
The
steam pipe for supplying the apparatus is shewn at u leading into a transverse
pipe v, from whence the steam passes into the series of drying pipes d, at the
other ends of which are small pipes w, for taking off the water of condensation.
The coils h for heating the air previously to its arrival at the fans are supplied
by a pipe x, and the water of condensation therefrom is conveyed at into the
general waste pipe z. The yarn or cloth is, as before stated, supplied to the
machine at r, and is drawn through it by the surface rollers n, p, and rollers e,
during which it is dried by the heated air driven upward by the fans, which
air passes out at the open ends; the top of the machine, however, I form with
doors at A, which may therefore be opened more or less at pleasure. Beneath
the bottom tier of rollers e is placed a partition of wire gauze B, by which the
fans are kept free from anything which might otherwise fall thereon.
In reference to drying cotton warps I would observe, that the rollers e are
provided with rings or danges so as to separate them.
".

page_text: It will now be perceived that this drying apparatus constitutes a machine
perfect in itself, the means for conveying the goods through it, the heating
medium, and the fans for driving the same upward being combined together
in one permanent arrangement, and the only thing necessary when fixing it is
to connect the pipe u-to the boiler. I have above shewn and described the
fans as acting by a driving power, but it is evident that they may, if desired, be
placed above, so as to act by exhaustion.
Having thus described and ascertained the nature of my said Invention,
and the manner in which the same is to be performed, I desire it to be under-
stood that I claim as secured to me under the above in part recited Letters
Patent, and for the purposes above set forth, the use of the fans, heating
medium, and apparatus for conveying the goods so combined as to form a
machine complete in itself.
In witness whereof, I, the said John Petrie, the younger, have hereunto
set my hand and seal, this Twenty-eighth day of December, in the
year of our Lord One thousand eight hundred and fifty-eight.
JOHN PETRIE, JR. (L.S.)