Improved Method and Appliances for Feeding Polishing Materials to Glass Polishing Machines and the like.
Year: 1895

page_text: Complete Specification Left, 8th Nov.. 1895-Accepted, 14th Dec.,
1895
TROY LOIONAL DI MUITIVATIVA
Improved Method and Appliances for Feeding Polishing Materials
to Glass Polishing Machines and the like.
I, RICHARD JUKES, of 207 High Street, in the City and County of Glasgow,
Glass Beveller and Polisher, do hereby declare the nature of my invention to be
as follows:-
--
Heretofore glass polishing machines have had the ground pumice stone, and the
lead and tin putty powder used for feeding up in polishing the bevelled edges of
the sheet glass after being cut, laid on to the rotating wood or other discs by hand
labour.
My improvements have for their object, and consist in, dispensing with hand
labour and mixing up and spreading said powders on the top surface of the
rotating disc by the automatic action of a mechanical appliance.
This appliance would preferably consist of a trough or circular shaped open
vessel in which the pumice stone or other powder and m'xing liquid would be
placed and agitators would rotate and circulate same within the vessel, and deliver
the material through an intermittently opened and regulated door on the surface
of the disc.
The agitator would be preferably placed to overhang vertically from a sleeve
mounted to rotate on a vertical shaft placed in vessel and be provided with
scrapers or shovels at their lower end.
The sleeve would have a bevel wheel mounted on its upper end, and receive
motion from a corresponding wheel mounted on a horizontal counter shaft carried
in bearings at upper end of vessel and provided with fast and loose pulleys so as to
be driven by belting from any prime moving shaft, or same may be driven by a
hand crank.
A slit or opening would be provided at the side of the lower end of vessel over
which would be fitted a door or valve which would be operated through rods, links,
or lever connections from a cam or actuating organ fitted on the counter shaft and
a hand regulated stop door may be mounted at slitted part behind the mechanically
operated door.
By this means the door can be opened for a limited time at predetermined
intermittent intervals by the action of the cam to deliver the required quantity of
powdered or semiliquid material along an inclined guide or shoot on to the surface
of the polishing rotating wood disc.
A helical or other recoil spring would be fitted on the rod connections of door
for closing it, and a hand lever would be provided for taking either the rod or cam
organ out of action when desired.
A brush would be provided to spread the delivered material over the surface of
dise and this brush may be either stationary or receive a horizontal reciprocatory
or oscillatory motion, or it may be made to rotate and may be operated through
lever or rod and cam connections from the rotating countershaft.
Dated the 7th February 1895.
W. R. M. THOMSON & Co.,
96 Buchanan Street, Glasgow, Agents.

page_text: Improved Method and Appliances for Feeding Polishing Materials
to Glass Polishing Machines and the like.
1, RICHARD JUKES, of 207 High Street, in the City and County of Glasgow,
Glass Beveller and Polisher, do hereby declare the nature of my invention and in
what manner the same is to be performed to be particularly described and
ascertained in and by the following statement in writing, that is to say :-
Heretofore glass polishing machines have had the ground pumice stone and the
lead and tin putty powder used for feeding up in polishing the bevelled edges of
the sheet glass after being cut, laid on to the rotating wood or other discs by hand
labour.
My improvements have for their object, and consist in, dispensing with hand
labour and mixing up and spreading said powders on the top surface of the rotating
disc by the automatic action of a mechanical appliance.
And in order that my said invention and the manner of performing or carrying
same into practice may be properly understood, I have hereto appended an
explanatory sheet of drawings in which
Figure 1 is an elevation of my automatic acting appliance for mixing and feeding
polishing materials to glass polishing machines.
Figure 2 is a sectional elevation at right angles to Figure 1, while
Figure 3 is a horizontal section as taken on the line 2-2 of Figure 2.
Referring to these drawings:-This appliance would preferably consist of a
trough or circular shaped open vessel A in which the pumice stone or other powder
and mixing liquid would be placed, and agitators B would rotate and circulate
same within the vessel, and deliver the material through an intermittantly opened
and regulated door C on to the surface of the disc D.
The agitator B is formed with a boss B fixed by a pinching screw B³ on
shaft 12 and the blades B may if desired be provided with scrapers or shovels at
their lower end.
A bevel wheel is secured on the upper end of the shaft B2 and receives motion
from a corresponding wheel mounted on a horizontal counter shaft 62 carried in
bearings supported from upper end of vessel and provided with fast and loose
pulleys so as to be driven by belting from any prime moving shaft, or same
may be driven by a hand crank.
A slit or opening would be provided at the side of the lower end of vessel at A¹
over which would fitted a deor or valve C.
A spindle C2 would have its lower end secured in a socket behind this door C,
while the upper end of spindle would be formed with a slot at C³. A lever c is
fulcrumed at c and has its kneed end operated by a cam c³ formed or fitted on
the shaft B2 to which the sleeve B' is secured.
The other end of lever e passes through the slot C³ in the spindle C2 and a
hand operated screw spindle C₁ working through a screw threadel eye at top of
slop C will regulate the distance which the end of lever will travel (when
operated by the cam c³) before it begins to raise the spindle C2 and door C.
By this means the door C can be opened for a limited time at predetermined
intermittent intervals by the action of the cam c³ to deliver the required quantity
of powdered or semi-liquid material along an inclined guide or shoot D¹ on to the
surface of the polishing rotating wood disc D.
Or a pipe connection D2 may be provided between shoot D' and disc D, and the
material pass through this pipe to the side of the disc when "shelving" work is
being done.
A helical or other recoil spring E would be fitted on the spindle C³ to close the

page_text: door C by its recoil action, while a spring E' would be fitted between frame A and
lever c to automatically bring back lever to its normal position after each action
of cam 3. A hand lever e would be provided for taking the lever c out of action
with cam c³ when this is desired, and the same action raises the door C. A
brush F may be provided to spread the delivered material over the surface of
disc D.
Having now particularly described and ascertained the nature of my inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
First. The method of automatically feeding polishing materials to glass
polishing machines, substantially as set forth.
Second. The herein described appliance for mixing up and automatically
feeding polishing materials to glass polishing machines, substantially as herein
set forth in reference to and shown in the accompanying drawings.
Dated the 7th November 1895.
W. R. M. THOMSON & Co.,
96 Buchanan Street, Glasgow, Agents.