IMPROVEMENTS IN APPARATUS FOR GRINDING PLATE GLASS
Year: 1869

page_text: LETTERS PATENT to Collingwood Lindsay Wood, of Howlish Hall,
Bishop Auckland, in the County of Durham, Gentleman, and
Joseph Stockley, of Newcastle-on-Tyne, in the County of
Northumberland, Engineer, for the Invention of "IMPROVEMENTS
IN APPARATUS FOR GRINDING PLATE GLASS."
Sealed the 8th June 1869, and dated the 26th January 1869.
PROVISIONAL SPECIFICATION left by the said Collingwood Lindsay
Wood and Joseph Stockley at the Office of the Commissioners of
Patents, with their Petition, on the 26th January 1869.
We, COLLINGWOOD LINDSAY Wood, of Howlish Hall, Bishop Auck-
land, in the County of Durham, Gentleman, and JOSEPH STOCKLEY, of
Newcastle-on-Tyne, in the County of Northumberland, Engineer, do
hereby declare the nature of the said Invention for "IMPROVEMENTS IN
APPARATUS FOR GRINDING PLATE GLASS," to be as follows:-
Our Invention has reference to an arrangement of apparatus and mode
of working moveable grinding benches or tables which admit of their
being transported from place to place as required, in such a manner as to

page_text: prevent loss of time by the stoppage of the machinery during the laying
of the glass or the changing of the runner on either bench, and also to
admit of the runners being driven at increased speed. The rods which
carry and drive the grinding runners are arranged in the direction of the
width of the benches (and, as usual, in pairs), instead of in the direction
of their length as usual, thereby admitting of the use of shorter rods,
and consequently of increased speed for the runners. In order to work
the runners over the whole width of the surface on which the glass is
fixed it is only necessary to move the benches longitudinally, and thus
grind by degrees the whole surface of the glass. This movement can be
effected in each case as required without stopping the machinery and
runners in operation on either moveable bench or table by moving the
particular bench backwards and forwards by means of a rack and pinion
actuated by worms and worm wheels or other suitable means. The
benches are or may be also passed as required over sheaves on to trucks
which are drawn along on a line of rails fixed on the floor of the
grinding shop at right angles to the benches. By means of this arrange-
ment the several benches are respectively brought forward and carried
away from the runners as required without stopping for any lengthened
period the machinery at work on the other bench. The runners are
raised from the benches and held as required by small winches or screws
and pulleys acting on chains connected to the rods carrying the runners,
each winch with its lifting apparatus being arranged so as to admit of its
being moved as required in order to serve for raising the runners of a
pair of benches, but when screws and pulleys are used for this purpose
there is one arrangement adapted and fixed to each rod. The trucks for
conveying the moveable benches to and from the runners as required
are or may be moved along the line of rails by means of an endless rope
or chain actuated in the usual way. We prefer to use moveable benches
of cast iron made in plates with flanges bolted together and covered
with plaster or cement to make a smooth surface. A grinding shop may
be arranged with two rows of benches and a line of rails for the convey-
ing trucks between them or with only one row and the line of rails in
front of it.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Collingwood Lindsay Wood and Joseph Stockley
in the Great Seal Patent Office on the 26th July 1869.
TO ALL TO WHOM THESE PRESENTS SHALE: COME, we, COLLING-
WOOD LINDSAY WOOD, of Howlish Hall, Bishop Auckland, in the Count;
of Durham, Gentleman, and JOSEPH STOCKLEY, of Newcastle-on-Tyne,
in the County of Northumberland, Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-sixth day of January, in the
year of our Lord One thousand eight hundred and sixty-nine, in the
thirty-second year of Her reign, did, for Herself, Her heirs and
successors, give and grant unto us, the said Collingwood Lindsay
Wood and Joseph Stockley, Her special licence that we, the said
Collingwood Lindsay Wood and Joseph Stockley, our executors,
administrators, and assigns, or such others as we, the said Collingwood
Lindsay Wood and Joseph Stockley, our 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 APPARATUS FOR
GRINDING PLATE GLASS," upon the condition (amongst others) that we,
the said Collingwood Lindsay Wood and Joseph Stockley, our executors
or administrators, by an instrument in writing under our, or their, or
one of their hands and seals, 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 Joseph Stockley, on behalf of
myself and of the said Collingwood Lindsay Wood, do hereby declare
the nature of our said Invention, and in what manner the same is to
be performed, to be particularly described and ascertained in and by
the following statement, reference being had to the Drawings hereunto
annexed, and to the letters and figures marked thereon (that is to
say:
Our Invention of "Improvements in Apparatus for Grinding Plate

page_text: .
Glass" has reference to an arrangement of apparatus and mode of working
moveable grinding benches or tables which admit of their being transported
from place to place as required, in such a manner as to prevent loss of
time by the stoppage of the machinery during the laying of the glass
or the shifting or changing of the position of the runner on either bench
or table, and also to admit of the runners being driven at increased speed.
The rods which carry and drive the grinding runners are arranged in
the direction of the width of the benches or tables (and, as usual, in pairs),
instead of in the direction of their length as usual, thereby admitting of
the use of shorter rods and consequently of increased speed for the
runners. In order to work the runners over the whole width of the
surface on which the glass is fixed it is only necessary to move the
benches or tables longitudinally, and thus grind by degrees the whole
surface of the glass. This movement can be effected in each case as
required without stopping the machinery and runners in operation
on either moveable bench or table by moving the particular bench or
table backwards or forwards by means of a rack and pinion actuated
by worms and worm wheels or other suitable means. The benches or
tables are or may be also passed as required over sheaves on to trucks
which are drawn along on a line of rails fixed on the floor of the
grinding shop at right angles to the benches or tables. By means of
this arrangement the several benches or tables are respectively brought
forward to and carried away from the runners as required without
stopping for any lengthened period the machinery at work on either
bench or table of a pair. The runners are raised from the benches or
tables and held as required by winches or screws and pulleys acting
on chains connected to the rods carrying the runners, each winch with
its lifting apparatus being arranged so as to admit of its being moved as
required in order to serve for raising the runners of a pair of benches
or tables, but where screws and pulleys are used for this
there
is one arrangement adapted and fixed to each rod.
conveying the moveable benches or tables to and from the runners
as required are or may be moved along the line of rails by means of an
endless rope or chain actuated in the usual way. We prefer to use.
moveable benches or tables of cast iron made in plates with flanges
bolted together and covered with plaster or cement to make a smooth
surface. A grinding shop or room may be arranged with two rows of
benches or tables and a line of rails for the conveying trucks between
them, or with only one row and the line of rails in front of it.
purpose
The trucks for

page_text: Having thus stated the nature of the said Invention, we will proceed
to describe more particularly in what manner the same is to be performed
by reference to the accompanying Drawings, in which are represented the
parts of apparatus above referred to.
DESCRIPTION OF THE DRAWINGS.
Fig. 1 represents a ground plan of part of a grinding shed or room
arranged according to our Invention; Fig. 2 shews a sectional elevation
of the same; and Figures 3 and 4 represent on an enlarged scale
a moveable grinding bench or table constructed as herein-after
described.
A, A, Fig. 1, are two moveable grinding benches or tables capable of
being moved as required over sheaves or antrifriction rollers a, a;
B, is a bogie or truck on which the moveable bench or table A is or may
be received and conveyed as required along the line of rails D. This
bogie or truck is furnished with sheaves or rollers b, b, for the bench
or table to move over in passing on to the bogie or truck. M, M, are
platforms carrying or furnished with sheaves or rollers similar to those
at a, a, and b, b, and upon or over which a bench or table can be passed
in order to have the glass changed or renewed while another bench or
table upon which the glass to be ground has been previously fixed is
taking its place under the grinding machinery from which the first-
mentioned bench or table has been just withdrawn. O, O, are the rods
by which the runners R, R, are worked; these are connected thereto by
the slot plates W, W, and pins P, P. The rods are arranged as usual
in pairs but in the direction of the width of the benches or tables A, A,
instead of in the direction of their length. This arrangement of parts
admits of the whole grinding on each bench or table being done by a
single runner driven from one point of the rod and that very near to
the "fly frame" L, thereby obviating the necessity of shifting the runner
from one point of the rod to another as hitherto required; it likewise
admits of the rods being shortened and consequently of their being
safely driven at increased speed. By moving the benches or tables
longitudinally forwards and backwards the whole surface of the glass
under operation may be brought by degrees under the runner, and this
may be done without necessarily stopping the runner in operation upon
either bench or table. The runners R, R, may be either raised from,
suspended, or lowered on to the benches or tables as required by means
of the chain S worked by the winch T or otherwise, as shewn in Fig. 2,

page_text: where one end of the chain S is fixed overhead, the other end passing
through the sheave T* mounted on the end of the rod O, and thence to a
swivel on the end of a screw U working in a nut carried by the
standard V also fixed to the rod O. By turning the star wheel X the
rod O and runner R, being connected by the pin P and cotter Z, may
be elevated or depressed or suspended, as shewn at Y, Y, Fig. 2. This
arrangement for lifting, lowering, and suspending the runners is also
applicable to the old system of grinding. The bogies or trucks B may
be moved along on the line of rails D either by manual labour or by
suitable mechanical means, one mode of which is shewn in Fig. 1, where
E, E, is an endless rope or chain passing round sheaves at each end of
the railway and worked by suitable means. This rope or chain is made
to pass round sheaves revolving loosely upon one of the axles of each
bogie or truck, such sheaves being fitted with friction or other clutches
and handles, as shewn at H, H, and J, whereby oither sheave may be
fixed to the axle or released therefrom, and the bogie or truck be thus
either propelled backward or forward or allowed to remain stationary as
required.
In Fig. 3, A., A, shew the under side of a moveable bench or table
made of iron with an upper surface of plaster or cement, in which the
bench or table is composed of sections B, B, bolted together at C, C, and
surrounded by side and end borderings D, D, of wood or iron to retain
the plaster or cement surface E as required, which is represented in Fig 4.
F in this Figure shews in section the longitudinal guide pieces which
rest on the sheaves whether of the grinding machine, conveying truck,
or platform; G shews the rack by means of which the bench or table is
moved over the sheaves. These guides F and rack G are secured to
the under side of the bench or table in the direction of the dotted
lines H, H.
Having thus described the nature of the said Invention, and in what
manner the same is to be performed, we hereby declare that what we
claim as of our Invention is,―
First. The combination of moveable grinding benches or tables with
the rods for. carrying and driving the grinding runners arranged in the
direction of the width of the benches or tables for the purpose and with
the advantages herein-before described.
Secondly. The mechanism for supporting, raising, or lowering the
runners as described.

page_text: Thirdly. The mode of constructing grinding benches or tables repre-
sented in Figures 3 and 4, and described.
And, lastly. The general arrangement of the apparatus for moving and
conveying the grinding benches or tables as required when combined
with the special arrangement of the rods and grinding runners,herein-
before described.
In witness whereof, I, the said Joseph Stockley, have hereunto
set my hand and seal, the Twentieth day of July, in the year
of our Lord One thousand eight hundred and sixty-nine.
Witness,
JOSEPH ELLIOTT,
19, Eleanor Street,
South Shields,
Agent.
JOSEPH STOCKLEY. (L.S.)