IMPROVEMENTS IN MACHINERY OR APPARATUS FOR DRYING WARPS FOR WEAVING
Year: 1860

page_text: LETTERS PATENT to John Petrie, junior, of Rochdale, in the County of
Lancaster, Machinist, for the Invention of "IMPROVEMENTS IN MACHINERY
OR APPARATUS FOR DRYING WARPS FOR WEAVING."
Sealed the 11th October 1860, and dated the 14th April 1860.
PROVISIONAL SPECIFICATION left by the said John Petrie at the
Office of the Commissioners of Patents, with his Petition, on the 14th
April 1860.
I, JOHN PETRIE, junior, of Rochdale, in the County of Lancaster, Machinist,
do hereby declare the nature of the said Invention for "IMPROVEMENTS IN
MACHINERY OR APPARATUS FOR DRYING WARPS FOR WEAVING," to be as.
follows:-
In drying warps I wind them over rails or bars, which are carried by radial.
arms or discs mounted upon an axle within a chamber of any suitable form,.
and I cause a current of air to pass through by means of a fan,, which, acts by
exhaustion or by driving. During this operation the warps are kept. stationary➤
but the apparatus upon which they are placed is. mounted upon an axle to.
allow of its turning to facilitate the operation of winding, and the sides of thȧ.

page_text: above chamber I so construct that they may be opened during that operation.
The above parts I unite in a framework, so as to constitute a machine
complete in itself.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said John Petrie in the Great Seal Patent Office on the
13th October 1860.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
PETRIE, junior, of Rochdale, in the County of Lancaster, Machinist, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fourteenth day of April, in the year of our Lord
One thousand eight hundred and sixty, in the twenty-third year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the said
John Petrie, Her special licence that I, the said John Petrie, my executors,
administrators, and assigns, or such others as I, the said John Petrie,
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 FOR WEAVING," upon the condition,
amongst others, that I, the said John Petrie, 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 calendar months next and immediately after the date of the said
Letters Patent.
NOW KNOW YE, that I, the said John Petrie, do hereby declare the
nature of my said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement and accompanying Drawings (that is to say) :-
In drying warps I wind them over rails or bars, which are carried by radial
arms or discs mounted upon an axle within a chamber of any suitable form,
and I cause a current of air to pass through by means of a fan, which acts by
exhaustion or by driving. During this operation the warps are kept stationary,

page_text: but the apparatus upon which they are placed is mounted upon an axle, which
may be turned to facilitate the operation of winding, and the sides of the
chamber I construct so that they may be opened during that operation.
A practical method of carrying out my Invention is shewn in the accom-
panying Drawing at Figs. 1 and 2, they being elevations taken at right
angles to each other. A framing is shewn at a, which is covered with boards,
felt, or other material, so as to form a close chamber, excepting at the top; the
sides a, however, represent doors, and these in Fig. 2 are shewn opened.
Through this chamber a shaft 6 passes, which shaft carries two sets of radial
arms c. These arms are provided with longitudinal grooves d, their section
being as at Fig. 3. On one side of the chamber a is an aperture d leading
to a fan e, which is mounted within a box f, which has an exit pipe g leading
out of the building, or in any other suitable direction. The box f I prefer to
close at top, and it is therefore supposed to be extended to the top of the room,
and a line shaft there passing through it may carry a pulley for driving the
fan. The fan in the Drawing is represented as having its vanes upon a face
plate, and the current of air will therefore be as indicated by the arrows.
Upon the shaft bare fast and loose pulleys h, by the former of which the said
shaft and its radial arms may be turned when desired.
The manner of using the apparatus is as follows:-The warp being opened
out to the width of the machine is made fast to a wooden rail, which is then
placed in the groove of one of the radial arms c, as shewn at i; the shaft bis
then turned, and similar rails i added to the other arms, and when a revolution
has been performed, another series is applied as at , over which the warp is
wound, and so on with each revolution, so that the warp becomes wound after
the manner of a spiral. The warp is indicated by the red colour, but two
rails only are shewn to avoid confusion. It will however, of course, be under-
stood that they are added at each revolution until the whole warp required to
be dried at one operation is wound. In order to keep the rails h apart, as they
are successively adapted to their grooves, I apply a piece of leather, or otherwise
render the ends thicker, as at Fig. 4. The warp having been thus wound, the
shaft is stopped; or, if desired, it may continue to revolve, but to admit of
this the chamber must be larger. The doors a* are then closed, and the fan e
is put in motion, when a rapid circulation of air will take place, the moisture
being carried off through the pipe g. The operation being completed the
doors a are opened, and the warps unwound from the rods h in any
convenient form.
Having thus described and ascertained the nature of my said Invention,

page_text: and the manner in which the same is to be performed, I desire it to be
understood that I claim as secured to me under the above in part recited
Letters Patent, the drying of warps by winding them upon rods carried by
radial arms or discs enclosed in a chamber, and submitting them to the action
of a fan, which acts by exhaustion or by driving.
In witness whereof, I, the said John Petrie, have hereunto set my hand
and seals, this Twelth day of October, in the year of our Lord One
thousand eight hundred and sixty.
JOHN PETRIE, JR. (L.S.)