Improvements in the Manufacture of Fire-clay Pipes called "Swan Necks."
Year: 1889

page_text: Date of Application, 21st Dec., 1889
Complete Specification Left, 8th Sept., 1890-Accepted, 11th Oct., 1890
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Fire-clay Pipes called
"Swan Necks."
I AZARIAH GRIFFITHS, of Bonnybridge, North Britain, Manufacturer, do hereby
declare the nature of my said invention to be as follows:-
The object of my invention is to effect improvements in the manipulation of fire
clay pipes known as swan necks as used by steel workers. After the pipe has been
partially formed by an ordinary machine, forming the clay into a tube and also cutting
the same into lengthis; and while still in a moist condition it is placed in a circular
shaped flask or box fixed horizontally on a bed plate supported upon the floor by
standards.
This flask or box is formed in two parts, hinged together, so that its upper part can
be opened and closed, and, when closed, fixed together with clasps. Two long
parallel screws, right and left handed at the ends, are fitted at the sides of the flask or
box, each screw having a nut fitted into sockets in the ends of two bridge pieces one
at each end of the flask or box. Fixed into the bridges are the respective dies which
form the compressers inside the flask or box and impart the required form to the clay
tube or pipe inside. The dies formed with adjustable screws and nuts in bridges
give the required length. Inside these end dies a ram or plunger is placed which
forms the hole inside the pipe. The ram is placed in position by the operator.
To work the screws running horizontally at both sides of the flask or box suitable
gearing is fitted at one end driven by a fly wheel and handle. At the bottom of
the flask or box a plate. and handle are permanently fixed so as to form part
thereof. When the operation of compressing the pipe has been effected the handle
is brought into operation to lift the pipe out of the flask.
Dal 1
1000
GEO.
DOWNING,
8, Quality Court, London, W.C., Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Fire-clay Pipes called
"Swan Necks."
I, AZARIAH GRIFFITHS, of Bonnybridge, North Britain, Manufacturer, do hereby
declare the nature of my said 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 my invention is to effect improvements in the manipulation of fire
clay pipes known as swan necks, as used by steel workers.
And in order that my said invention may be particularly described and ascertained,
reference is hereby made to the accompanying drawings, in which similar letters of
reference indicate corresponding parts.
Fig. 1 is an elevation: Fig. 2 a plan, and Fig. 3 an end view of my invention.
After the pipe has been partially formed by an ordinary machine, forming the clay
into a tube, and also cutting the same into lengths and whilst still in a moist
condition it is placed in the circular shaped flask or box a, fixed horizontally on the
bed plate b, supported by standards c c.
:
The flask or box a is formed in two parts, hinged together at dd, (Fig. 2) so that
its upper part can be opened and closed, and, when closed, fixed together with
clasps e e. ff are two parallel rods, the ends of which are formed with right and left
hand screw threads, as shown. Each screw works in a travelling nut g fixed in bridge

page_text: pieces h h. These bridge pieces carry the hollow screws k k to which the dies k¹ k¹
are attached. The dies form the end compresses and enter the flask a at each end
simultaneously, and impart the required form to the ends of the clay tube in the flask.
A ram or plunger is fitted and supported by the screws and dies k k¹. The
plunger wo forms the hole inside the pipe. kk2 are adjustable nuts for adjusting the
position of the dies and giving the required length to the pipe.
m is is a fly wheel
fitted with a handle n. o is a central toothed wheel driven by the wheel m. The
wheel o drives the two wheels pp, both fast on the rods ff. are the bearings in
which the rods ff are mounted. s is a plate (shown by dotted lines) fitted into and
forming part of the lower half of the flask or box a, and t is a handle. pivoted at u,
whereby the finished pipe may be lifted in the box for removal.
In using my invention the flask a is opened: the clay pipe, in a rough state, is
placed in the flask: the latter is then closed. The plunger w and dies k' are adjusted
by hand. The fly wheel m is then turned, whereby the dies are simultaneously driven
into the flask and upon the ends of the pipe. When the operation of compressing
and forming the pipe has been effected, the plunger and dies are withdrawn from the
flask, the flask is opened and the pipe removed with the assistance of the lifting plate s
and handle t.
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 1
claim is -
1. The improved method of manufacturing pipes called "swan necks," substantially
as herein before described and illustrated by the drawings.
2. In the manufacture of pipes called swan necks as aforesaid, the application and
use of the apparatus and appliances herein before described and illustrated by the
drawings.
3. The general arrangement construction and combination of the several and
respective parts, together forming my invention of improvements in the manufacture
of fire clay pipes called "swan necks," substantially as herein before described and
illustrated by the drawings.
Dated 8+1,
1
1000
GEO.
DOWNING,
8, Quality Court, London, W.C., Agent for Applicant.