IMPROVED APPARATUS TO BE USED IN CONNECTION WITH THE GRINDING OF GLASS
Year: 1879

page_text: LETTERS PATENT to William Windle Pilkington, of St. Helens, in the County
of Lancaster, Glass Manufacturer, for the Invention of "IMPROVED APPARATUS
TO BE USED IN CONNECTION WITH THE GRINDING OF GLASS."
Scaled the 30th March 1880, and dated the 7th October 1879.
PROVISIONAL SPECIFICATION left by the said William Windle Pilkington
at the Office of the Commissioners of Patents on the 7th October 1879.
WILLIAM WINDLE PILKINGTON, of St. Helens, in the County of Lancaster, Glass
Manufacturer. "IMPROVED APPARATUS TO BE USED IN CONNECTION WITH THE
GRINDING OF GLASS."
Heretofore sand used in grinding glass has been conveyed to the grinding
benches by the aid of wheel-barrows and hand appliances; the practice is unsatis-
factory and costly.
Now the object of my Invention is to provide apparatus or mechanism whereby
the separation, elevation, transinission, and deposition of sand at the grinding
benclics is automatically effected upon giving motion to the said apparatus or
mechanism.
Sand after separation into the desired quality is elevated from the separator or
settling trough by endless chains, or bands of buckets, or scoops, or elevators to a
level above that of the grinding benches, and from that point it is conveyed by
waggons or carriers hung from a travelling rope or chain or on the upper surface of
a band over and alongside the row of benches. To supply any particular bench
with sand a trip piece is employed when carriers are used and an intercepting
scraper or arrangement of rollers and shoot when the plain band is used. The said
trip piece or intercepting scraper or rollers and shoot is secured and adjusted near
the particular bench, the trip piece opening the hinged bottom or side of the carrier,
and the scraper or rollers and shoot intercepting, throwing off, and conducting the
sand at the desired point.
The essential features of the Invention are elevating, transporting, and depositing
sand for grinding glass by machinery wherein adjustment of the trip pieces or
intercepting scrapers or rollers and shoot herein described is the only hard work
necessary.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Windle Pilkington in the Great Seal Patent Office on the
7th April 1880.
88
WILLIAM WINDLE PILKINGTON, of St. Helens, in the County of Lancaster, Glass
Manufacturer. IMPROVED APPARATUS TO BE USED IN CONNECTION WITH THE
GRINDING OF GLASS."
Heretofore sand used in grinding glass has been conveyed to the grinding
benches by the aid of wheel barrows and hand appliances; the practice is
unsatisfactory and costly.
Now the object of my Invention is to provide apparatus or mechanism whereby
the separation, elevation, transmission, and deposition of sand at the grinding
benches is automatically effected upon giving motion to the said apparatus or
nechanism.
Sand after separation into the desired quality is elevatod from the separator or
settling trough by endless chains, or bands of buckets, or scoops, or elevators to a
level above that of the grinding benches, and from that point it is conveyed by
wagons or carriers hung from a travelling rope or chain or on the upper surface of
a band over and alongside the row of benches. To supply any particular bench
with sand a trip piece is employed when carriers are usod, and an intercepting
scraper or arrangement of rollers and shoot when the plain band is used. The said
trip piece or intercepting scraper or rollers and shoot is secured and adjusted near
the particular bench, the trip piece opening the hinged bottom or side of the carrier,
and the scraper or rollers and shoot intercepting, throwing off, and conducting the
sand at the desired point.
The essential features of the Invention are elevating, transporting, and depositing
sand for grinding glass by machinery wherein adjustment of the trip pieces or
intercepting scrapers or rollers and shoot herein described is the only hard work
necessary.
DESCRIPTION OF THE DRAWINGS.
Fig. 1, 1 is a separater or settling trough of any usual or desired construction
from which sand to be used in grinding glass is elevated by the endless band or
chain of buckets 2, and deposited on the platform 3; the said sand is raised from
the platform 3 in the required quantities and at the required rate of speed and
deposited on the endless travelling band 4, which delivers such sand to the pan 5,
where it is spread over the surface by means of revolving scrapers, and passes
through openings in the bottom of the said pan onto the endless bands G which
carry the said sand forward and tip it into a shoot 7 or onto the endless band 6',
from which it is deflected into a shoot 8. The sand passes through the said shoots
and falls on the grinding benches 9.
Instead of depositing the sand on an intermediate platform 3 it may be deposited
direct on the travelling band 4 and delivered to the distributing pan 5, or the said
sand may be delivered by the elevator 2 to the endless bands 6 or to wagons or
carriers, as shown in Fig. 2, which deliver such sand into the distributing pan 5 or
direct to the grinding benches. The said wagons or carriers are constructed with a
hinged bottoin 10 and latch 11, which latter strikes a catch, or such wagons or
carriers are hung in bearings 12, and are caused to tilt or tip over by the trip
pieces 13.
It will be obvious that the seperators, elevating, carrying, distributing, and
depositing mechanism or apparatus may be constructed, arranged, fitted, and
operated in many ways without departing from my Invention.
Bearings, carrying pieces, and driving and connecting gear of any usual or
desired kind are employed, and any suitable motive power is used to actuate the
appliances,

page_text: Having now described and illustrated the nature of the said Invention in such
manner that others will be enabled to carry my improvements into effect, I
claim,―
Apparatus for separating, elevating, transporting, and depositing sand for grinding
glass, arranged, combined, and operating substantially as set forth.
In witness whereof, I, the said William Windle Pilkington, have hereunto set
my hand and seal, this 5th day of April, in the year of our Lord One thousand
eight hundred and eighty.
W. W. PILKINGTON. (L.S.)