IMPROVEMENTS IN SILK' MACHINES FOR DRESSING FLOUR, PART OF SUCH IMPROVEMENTS BEING APPLICABLE FOR SIEVEING OR SIFTING OTHER POWDERED AND PULVERIZED MATERIALS."
Year: 1878

page_text: LETTERS PATENT to Elizabeth Pindar, of the City and County of York,
Widow and Executrix of William Pindar, late of the said City and County of
York, deceased, for the Invention of "IMPROVEMENTS IN SILK' MACHINES
FOR DRESSING FLOUR, PART OF SUCH IMPROVEMENTS BEING APPLICABLE FOR
SIEVEING OR SIFTING OTHER POWDERED AND PULVERIZED MATERIALS."
PROVISIONAL SPECIFICATION left by the said William Pindar at the Office
of the Commissioners of Patents on the 29th October 1878.
WILLIAM PINDAR, of the City and County of York. "IMPROVEMENTS IN SILK
MACHINES FOR DRESSING FLOUR, PART OF SUCH IMPROVEMENTS BEING APPLICABLE
FOR SIEVEING OR SIFTING OTHER POWDERED AND PULVERIZED MATERIALS."
My Invention has for its object improvements in machines known as "silk'
machines for sieving or sifting flour, whereby sieving or dressing of the material is
effected much inore quickly and a greater equality in the flour is insured. .
I construct that part of the "silk" machine which is known as the reel
without any internal obstruction, so that the meal to be dressed during the operation
of the machine is free to act on every part of the "silk," and in order to do this I
dispense with the longitudinal bars and spokes commonly used within the reel, and
provide external bars in combination with circular or polygonal rings or belts to
which the "silk" is attached and retained thereon by a light internal flange. This
arrangement of apparatus is also applicable for sieving or sifting other powdered or
pulverized materials.

page_text: Fig. 1 is a longitudinal section through A, B, Fig. 2; Fig. 2, a transverse section
through C, D, Fig. 1; and Fig. 3, a plan with top of case removed.
"
That part of the machine known as the "recl" is shewn at a, which is covered
with "silk" of the ordinary kind that is used on "silk' or flour sifting machines.
The reel a is mounted on a shaft b carried in bearings c, rotary motion being
transmitted thereto through gearing d which is of ordinary construction; e, e, are
the arms whereby the reel a are secured to and supported on the shaft b, and with
this exception there is no obstruction in the interior of the reel a, all spokes usually
applied therein being dispensed with, so that every part of the "silk" is free for
sieving purposes.
Instead of the longitudinal bars and spokes commonly used within the reel a
external bars or bolts f are provided in combination with circular or polygonal rings,
or bolts are provided in combination with circular or polygonal rings or belts g,
-to which the "silk is attached or retained thereon by light internal flanges h.
The whole is firmly secured-together by means of the bars or bolts f passing
through the rings i at each end of the reel , to which they are attached by means
of their screwed ends and nuts in the ordinary manner of a bolt.
The case or boxj, worm l, and other parts of the machine not described may be
of ordinary construction, motion being transmitted to the machine from any
suitable motive power.
Having now described the nature of the said Invention and described with the aid
of Drawings how the same may be carried into practice, I would have it understood
that I do not limit myself to the precise details or configuration of the parts I have
described and shewn, as the same may be varied or modified without departing
from the nature of the said Invention, but what I claim and desire to be secured
to me by Letters Patent is,-
First. The arrangement, construction and application of reels a, whereby internal
longitudinal bars and spokes are dispensed with, presenting thereby no obstruction
in the interior thereof, substantially as and for purposes herein set forth.

page_text: Second. The arrangement and combination of the various parts forming the
machine, substantially as and for purposes herein set forth.
In witness whereof, I, the said Elizabeth Pindar, have hereunto set my
hand and seal, this Twenty-sixth day of April, in the year of our Lord
One thousand eight hundred and seventy-nine.
Signed, sealed, and delivered by the
within-named Elizabeth Pindar,
in the presence of
FRAS. W. CALVERT,
Solr.,
York.
Signed, sealed, and delivered by the
within-named Elizabeth Pindar,
in the presence of
FRAS. W. CALVERT,
Sol.,
York.
ELIZABETH PINDAK. (L.S.)