Improvements in Plate and Rolled Plate Glass Annealing Kilns and Machinery.
Year: 1890

page_text: Date of Application, 18th Jan, 1890
Complete Specification Left, 18th Nov., 1890-Accepted, 20th Dec., 1890
PROVISIONAL SPECIFICATION.
Improvements in Plate and Rolled Plate Glass Annealing Kilns and
Machinery.
I, WILLIAM WINDLE PILKINGTON of St. Helens in the County of Lancaster, Glass
Manufacturer, do hereby declare the nature of this invention to be as follows:-
The object of the present invention is to provide annealing kilns wherein plate and
rolled plate glass can be thoroughly and speedily annealed, quickly moved through
the kiln, fuel economized and flatter plates obtained. Its object also is to provide
apparatus or machinery whereby the movement of glass through the kilns, the raising
on edge of plates, and final cooling are facilitated.
For convenience I will describe my invention under the following six heads :-
First. The annealing kiln proper I construct so far as sides floors arches and gas.
and air inlets are concerned and also outlets for products, of any usual materials but
in ground plan of one or a series of L's. The glass is entered through a door in one
limb of the L in one direction and as annealing proceeds is next pushed or drawn
in direction at about a right angle. This is repeated as often as there are L's in the
kiln through openings alternately in one limb and then in the other. Each limb of
an L may contain one two or more plates.
Second. In combination with the above L shaped kiln one or a series of baffle.
arches are placed across the kiln to allow of easy regulation of temperature.
Third. In combination with the above ☐ shaped kiln and baffle arch or arches air
and gas are admitted through nozzles at the necessary points in the roof or high in
the sides.
The
Fourth. For moving sheets towards the cooling end of the kiln rods with studs
thereon are caused to partake of a reciprocating and rising and falling motion.
studs secured to these catch the rear end of each plate, and push it forward towards
the delivery end.
Fifth. Near the delivery end I place a hinged fly which receives each delivered
plate of glass and turns it on edge. This fly has a continuous bearing for the plate
and bears on the plate all the time it is being raised. It also has in the parts for
raising the plate a movable centre so that a plate can be readily moved on edge in
exact position onto a trolly.
Sixth. For cooling plates I provide two or more chambers at or near the delivery
end of the kiln. The plates are passed into one of the chambers and piled, this
chamber is cut off from the kiln and the plates are allowed to cool whilst another
chamber is receiving plates. The filling and withdrawing go on alternately.
Dated this Seventeenth day of January 1890.
J. T. KING,
Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Plate and Rolled Plate Glass Annealing Kilns and
Machinery.
I WILLIAM WINDLE PILKINGTON of St. Helens in the County of Lancaster Glass
Manufacturer do hereby declare the nature of this invention and in what manner the
same is to be performed, to be particularly described and ascertained in and by the
following statement :-
The object of the present invention is to provide annealing kilns wherein plate and
rolled plate glass can be thoroughly and speedily annealed, quickly moved through
the kiln, fuel economized and flatter plates obtained. Its object is to provide apparatus

page_text: or machinery whereby the movement of glass through the kilns, the raising on edge
of plates and final cooling are facilitated.
For convenience I will describe my invention under the following six head-
First. The annealing kiln proper I construct, so far as sides floors, arches, and gas
and air inlets are concerned and also outlets for products, of any usual materials but in
ground plan of one or a series of L's. The glass is entered through a door in one limb
of the in one direction, and as annealing proceeds is next pushed or drawn in
direction at about a right angle. This is repeated as often as there are L's in the kiln
through openings alternately in one limb and then in the other. Each limb of an L
may contain one two or more plates.
Second. In combination with the above L shaped kiln one or a series of baffle
arches are placed across the kiln to allow of easy regulation of temperature.
and
Third. In combination with the above L shaped kiln and baffle arch or arches, air
gas are admitted through nozzles at the necessary points in the roof or high in
the sides.
Fourth. For moving sheets towards the cooling end of the kiln, rods with studs
thereon are caused to partake of a reciprocating and rising and falling motion. The
studs secured to these catch the rear end of each plate and push it forward towards
the delivery end.
Fifth. Near the delivery end 1 place a hinged fly which receives each delivered
plate of glass and turns it on edge This fly has a continuous bearing for the plate
and bears on the plate all the time it is being raised. It also has in the parts for
raising the plate a movable centre so that a plate can be readily moved on edge in
exact position on to a trolly.
Sixth. For cooling plates I provide two or more chambers at or near the delivery
end of the kiln. The plates are passed into one of the chambers and piled; this
chamber is cut off from the kiln and plates are allowed to cool whilst another chamber
is receiving plates. The filling and withdrawing go on alternately.
DESCRIPTION OF THE DRAWINGS.
In all the views the same letiers denote like parts.
Fig. 1 is a horizontal section, Fig. 2 a vertical section at the line A. B, and Fig. 3
an elevation of a simple form of kiln illustrative of the first second and third parts of
my invention. 1 is the L shaped kiln, 2 is a door through which the glass is entered
into one limb 3 of the L, and whence it is pushed into the second limb 4 of the shaped
kiln, 5 is a door through which the glass is reached and pushed along the limb 4
until it is opposite the discharge way 6 through which it is hauled out or the glass
may be reached through the door 7 and pushed out. 8 are baffle arches across the
limbs to divide the kiln into chambers so that the temperature of each portion may be
regulated. 9 are gas and air ports 10 are inlet ways for air. Any usual or suitable
appliances are employed to regulate the admission of gas and air into the chambers so
that the required heat may be obtained by combustion. Although I have stated in
the Provisional Specification that the gas and air are admitted at the top or high in
the sides I have found that they may equally well be admitted at the bottom or low
down. It will be obvious that these kilns may be heated by furnaces or grates in the
usual way if desired.
Fig. 4 is a horizontal section, and Fig. 5 a vertical section at the line U. D. of a
kiln illustrating the first, second, third and sixth parts of my invention. Here there
are two baffle arches 8 in the limb 4 of the kiln, there is also a cooling off chamber or
lear 11 provided with piling chambers 12 into which the glass is pushed and piled.
13 are doors through which the piling is effected. 14 are inlet ways and 15 discharge
ways. The chambers are used alternately, one being filled whilst the other is being
emptied. The piling may be effected by hand or mechanism. Here the gas and air
ports are shown at the top in Fig. 5.
Fig 6is a horizontal section of a modification of a kiln illustrative of the first and
second parts of my invention. Here there are two L shaped portions in series, 3 and 4

page_text: being the limbs of one portion, and 16 and 17 the limbs of the other. Fig. 7 is a
horizontal section of a kiln illustrative of the first, second, third, fourth and sixth
parts of my invention. Here there are three L shaped portions in series 3 and 4,
16 and 17, and 18 and 11. 19 is a covered passage through which trolleys are passed
to take the annealed glass from the lear 11. The passage may be and preferably is
long enough to allow of the trolley remaining therein until the glass is sufficiently.
cooled. 20 are rods with stud 21 shown in Fig. 8. These rods are caused to rise
fall and reciprocate in any usual or suitable way.
Fig. 9 is a vertical section of piling apparatus under the fifth head of my invention,
22 is a fly hinged at 23 and operated by means of a chain 25. To the fly 22 is hinged
at 26 a bearing piece or frame 27 so that as the fly is operate: the centre 26 moves
and carries with it the frame 27 which will always bear fully against the glass 28 in
whatever position the said glass may be, whilst being moved from the kiln to the
trolley 29.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
:-
First. Annealing kilns constructed of one or a series of L shaped parts provided with
openings or doors substantially in the manner and for the purpose set forth.
Second. The combination of L shaped annealing kilns with baffle arches for the
purpose set forth.
Third. The combination of ✓ shaped annealing kilns having baffle arches with air
and gas inlets substantially as set forth.
Fourth. In combination with L shaped annealing kilns, rods with studs actuated
substantially in the manner and for the purpose set forth.
Fifth. In combination of a hinged fly with a bearing piece or frame on a movable
centre substantially as and for the purpose set forth.
Sixth. The combination with annealing kilns of two or more piling chambers used
consecutively substantially as set forth.
Dated the 17th November 1890.
Per pro J. T. KING,
J. Johnson.