Improvements in Machinery or Apparatus for Use in the Manufacture of Sheet Glass.
Year: 1894

page_text: Date of Application, 22nd June, 1894
Complete Specification Lott 22nd Mar 1905 Accented
Ath Mov 1805
Date of Application, 22nd June, 1894
Complete Specification Lett. 22nd Mar 1905 Accepted, 4th May 1805
PROVISIONAL SPECIFICATION.
Improvements in Machinery or Apparatus for Use in the
Manufacture of Sheet Glass.
1, ROBERT MURRAY WIGHT, of Belvedere Road, Sunderland, in the County of
Durham, Glass Works Manager, do hereby declare the nature of this invention to
be as follows:-
This invention relates to improvements in machinery or apparatus used in the
process of making sheet glass, to support the blow-pipe whilst it is manipulated to
expand the "metal" gathered on the end into cylindrical form, and its object is
to provide a simple and secure method of holding the tube whilst it is oscillated or
swung round and at the same time leave it perfectly free to be rotated on its axis as
required.
For this purpose on the end of the shaft or arm of the machine I form or fix a
clutch one half or portion of which is hinged to the other and is capable of being
readily opened to admit the blow-pipe and when closed the blow-pipe is encircled
by the clutch. A conveniently arranged spring, or other suitable, catch is provided
to hold the clutch closed. To prevent the blow-pipe dropping through the clutch
a collar is formed or secured on the blow-pipe and to enable the blow-pipe to be
freely revolved upon its axis anti-friction rollers are mounted in the clutch upon
which the said collar rests. To prevent the blow-pipe dropping out the other
way, in case it is swung completely round, a second collar may be formed upon the
blow pipe. This second collar instead of bearing against the clutch or anti-friction
rollers may be arranged near the handle of the blow-pipe and bear against a fork
piece which may be closed by a piu passed through both limbs of the fork.
As a modification two clutches may be employed projecting from the ends of a
cross bar on the shaft or arm of the machine. In this case the two collars may be
formed on that portion of the blow-pipe lying between the two clutches.
Dated this 20th day of June 1894.
DRACUP & NOWELL,
Bradford, Agents.
Improvements in Machinery or Apparatus for Use in the
Manufacture of Sheet Glass.
I, ROBERT MURRAY WIGHT, of 42, Exchange Buildings, Cardiff, South Wales,
Glass Works Manager late of Belvedere Road, Sunderland, in the County of
Durham, 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 :-
This invention relates to improvements in machinery or apparatus used in the
process of making sheet glass, to support the blow pipe whilst it is manipulated to
expand the "metal" gathered on the end into cylindrical form and particularly to
that type of machine in which the blow pipe is mounted on the end of a rocking

page_text: shaft fitted in a bogie or carriage adapted to be run along the edge of the blowing
pit; and the object of the invention is to provide a simple and secure method of
holding the tube whilst it is oscillated or swung round and at the same time to leave
it perfectly free to be rotated on its axis as required.
For this purpose on the end of the shaft or arm of the machine | form or fix a
clutch one half or portion of which is hinged to the other and is capable of being
readily opened to admit the blow-pipe and when closed the blow-pipe is encircled by
the clutch. A conveniently arranged spring, or other suitable catch is provided to
hold the clutch closed. To prevent the blow-pipe dropping through the clutch a
collar is formed or secured on the blow-pipe and to enable the blow-pipe to freely
revolve upon its axis anti-friction rollers are mounted in the clutch upon which the
said collar rests. To prevent the blow-pipe dropping out the other way, in case it
is swung completely round, a second collar ia formned upon the blow pipe. This
second collar instead of bearing against the clutch or anti-friction rollers may be
arranged near the handle of the blow pipe and bear against a fork piece which may
be closed by a pin passed through both limbs of the fork.
As a modification two clutches may be employed projecting from the ends of a
cross bar on the shaft or arm of the machine. In this case the two collars may be
formed on that portion of the blow-pipe lying between the two clutches.
Reference is to be had to the accompanying sheet of drawings forming a part of
this Specification in which similar letters of reference indicate corresponding parts
in ench of the figures.
Figure 1, represents a side elevation of my improved clutch showing also a
portion of the said shaft to which it is attached and also showing a cross sectional
view of the blow-pipe mounted in the clutch.
Figure 2, represents a similar view to Figure 1 with the clutch open and the
blow-pipe omitted.
Figure 3, represents a plan view of Figure 1.
Figure 4, represents an end view of Figure 1.
Figure 5, represents a sectional view on the broken linea, Figure 1.
Figure 6, represents a plan view on a smaller scale of the
piece with the blow-pipe in position.
clutch and said fork
Figure 7, represents a sectional view of the same on the broken line y, .
Figure 8, represents a similar view to Figure 6 but in which a second clutch is
shown in place of the said fork piece.
The shift A of the machine is mounted in the ordinary way and the clutch Bis
rigidly secured upon its projecting end. The piece B' of the clutch is hinged to B
by the pin 13 and is held in the closed position by the catch or detent C engaging
its end B'. The two pairs of anti-friction rollers B, 13 and 1, B are respectively
pivoted by the pins B' in recesses formed in B3 and B. The catch or detent C is
pivoted to 13 by the pin C and is kept normally in the position shown by the end
of the spring stud or pin I bearing against it. The pin D projects through the
spring box Din which the volute or spiral spring D³ is compressed between the
collar D on the pin D and the screw cap D of the box. The spring box is
secured by its lugs D by means of screws D' to the end of the clutch B. To
open the clutch to release the blow pipe it is simply necessary to spring the detent C
nside (to the position shown by the broken lines Figure 2) by laying hold of the
finger piece when the clutch is free to be opened and the blow-pipe withdrawn.
The collar E on the blow-pipe E bears upon the clutch and prevents said blow-
pipe dropping through. To steady the blow pipe the arm F (Figure 6 and 7) is
rigidly fixed upon the shaft A and its curved end terminates in a fork 'in
which the low-pipe is confined by the pin F, which pin is withdrawn to release
the blow pipe from the fork. A second collar E³ may be formed on the blow-pipe
to bear against the fork piece and in conjunction with the collar E prevents the
blow-pipe moving longitudinally in either direction. The collar Emay be arranged
to bear against the opposite side of the clutch to the collar E as shown in Figure 8.
In this figure a second clutch is shown instead of the fork piece.

page_text: Instead of arranging the collar E and E' to bear against the clutch the hole Z
through the clutch may be enlarged so as to enable the collars to bear against the
side faces of the anti-friction rollers B and B°.
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 :
1. In apparatus for manufacturing sheet glass, a clutch for holding the blow
pipe having anti-friction rollers to bear upon the said pipe and having a hinged
portion adapted to be opened to admit the pipe and also having a spring catch or
detent adapted to hold said hinged portion in the closed position, substantially as
herein shown aud described and illustrated in the accompanying drawings.
2. In apparatus for manufacturing sheet glass, the combination with a clutch
for holding the blow-pipe of a fork piece a suitable distance from said clutch, or a
second clutch also adapted to embrace and hold the blow pipe, substantially as
herein shown and described.
3. In apparatus for manufacturing sheet glass, the combination with a clutch
constructed to hold the blow pipe of collars on said pipe adapted to confine it
longitudinally in relation to the clutch, substantially as herein shown and
described.
Dated this 20th day of March 1895.
DRACUP & NOWELL,
Bradford, Agents.