Improvements in the Manufacture of Stair Rod Eyes and Picture Rod Hooks.
Year: 1890

page_text: Date of Application, 28th Nov., 1890
Complete Specification Left, 29th July, 1891-Accepted, 29th Aug., 1891
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Stair Rod Eyes and Picture
Rod Hooks.
I GEORGE CLARKE of Murdock Road Handsworth in the County of Stafford
Brassfounder and Works Manager to Evered and Co. Limited Barnet Works
Birmingham do hereby declare the nature of this invention to be as follows:-
-
My invention consists in manufacturing stair rod eyes and picture rod hooks
from tubing by a drawing process conducted substantially as hereinafter described.
In making stair rod eyes according to my invention I take cylindrical tubing of
brass or other ductile metal or alloy of a diameter considerably greater than that
of the body or eye part of the stair rod eyes to be made; and I place in the said
tubing a mandril of the shape and size of the said body or eye part. By a series of
drawing operations effected by the use of pairs of dies and a draw bench the brass
tubing is drawn upon and made to take the shape of the said supporting mandril
and the unsupported sides of the tube are flattened and closed upon one another
so as to give to the tubing the sectional figure of the stair rod eyes to be made.
That is to say the tubing so drawn or fashioned has along its middle the nearly
circular or semi-circular figure or other figure of the body of the stair rod eye to
be made and along the opposite sides of the tubular middle part flattened wing
pieces situated at right angles to one another. The folded or doubled metal of the
said wing pieces is so flattened and compressed by the drawing process that the said
wing pieces are practically solid. By cutting transversely from the tubing fashioned
as described narrow strips or pieces nearly finished stair rod eyes are produced the
said eyes being finished by forming countersunk screw holes in the wing pieces so
as to convert them into the fixing ears by which the stair rod eyes are fastened to
the stairs.
In making picture rod hooks according to my invention I make them from
cylindrical tubing of brass or other ductile metal or alloy substantially in the
manner hereinbefore described with respect to stair rod eyes the drawn tubing in
this case being folded and flattened at one side only and the flattened side part
shaped or curved into a hook by the drawing process.
Dated the 28th day of November 1890.
W. T. WHITEMAN,
Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Stair Rod Eyes and Picture
Rod Hooks.
I GEORGE CLARKE of Murdock Road Handsworth in the County of Stafford
Brassfounder and Works Manager to Evered and Co. Limited, Barnet Works,
Birmingham 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:-
My invention consists in manufacturing stair rod eyes and picture rod hooks
from tubing by a drawing process conducted substantially as hereinafter described.
In making stair rod eyes according to my invention I take cylindrical tubing of
brass or other ductile metal or alloy of a diameter considerably greater than that
of the body or eye part of the stair rod eyes to be made and I place in the said
tubing a mandril of the shape and size of the said body or eye part. By a series of
DO

page_text: drawing operations effected by the use of pairs of dies and a draw bench the brass
tubing is drawn upon and made to take the shape of the said supporting mandril
and the unsupported sides of the tube are flattened and closed upon one another so
as to give to the tubing the sectional figure of the stair rod eyes to be made. That
is to say, the tubing so drawn or fashioned has along its middle the nearly circular
or semi-circular figure or other figure of the body of the stair rod eye to be made.
and along the opposite sides of the tubular middle part, flattened wing pieces
situated at right angles to one another. The folded or doubled metal of the said
wing pieces is so flattened and compressed by the drawing process that the said
wing pieces are practically solid. By cutting transversely from the tubing fashioned
as described narrow strips or pieces, nearly finished stair rod eyes are produced the
said eyes being finished by forming countersunk screw holes in the wing pieces so
as to convert them into the fixing ears by which the stair rod eyes are fastened to
the stairs.
In making picture rod hooks according to my invention I make them from
cylindrical tubing of brass or other ductile metal or alloy substantially in the
manner hereinbefore described with respect to stair rod eyes the drawn tubing in
this case being folded and flattened at one side only and the flattened side part
shaped or curved into a hook by the drawing process.
I will now proceed to describe with reference to the accompanying drawing the
manner in which my invention is to be performed.
In making a stair rod eye according to my invention I take a cylindrical tubing
of brass or other ductile metal or alloy of the diameter represented in Figure 1 and
by a series of drawing operations effected by the use of pairs of dies and a draw
bench, I first give to the tubing the sectional form represented in Figure 2 and
afterwards that represented in Figure 3 the said tubing being supported internally
during the drawing operations by mandrils having the figures necessary for
supporting certain parts of the tubing and partly shaped strip.
In the last drawing operation the supporting mandril has the sectional figure of
the eye or body part of the stair rod eye to be made and by the said last drawing
operation a portion of the shaped tubing Figure 2 is made to take the form of the
said supporting mandril and the unsupported sides or portions of the tubing are
flattened and closed upon one another so as to give the tubing the sectional figure of
the stair rod eye to be made as illustrated in Figure 3. By referring to the said
Figure 3 it will be seen that the tubing so drawn or fashioned has along its middle
the nearly circular figure of the body part a of the stair rod eye and along the
opposite sides of the tubular middle part a flattened wing pieces b, b situated at
right angles to one another. It will also be seen that the metal of the wing
pieces b, b is so flattened and compressed by the drawing process that they are
practically solid.
I do not limit myself to the production of the drawn or fashioned tube Figure 3
from the cylindrical tubing Figure 1 by two drawing operations as more than two
drawing operations may be employed; and by varying the sectional shape of the
supporting mandril used in the last drawing operation the shape of the eye or body
part of the fashioned tube may be varied to suit rods of different shapes.
The drawn tubing Figure 3 is made into stair rod eyes by cutting transversely
from the said tubing, narrow strips or pieces as indicated in dotted lines at c c.
The nearly finished stair rod eyes thus produced are finished by forming countersunk
screw holes in the wing parts b b so as to convert them into the fixing ears by which
the stair rod eyes are fixed to the stairs.
Figure 4 represents in front elevation and Figure 5 in section a finished stair rod
eye made according to my invention fixed to the stairs d, d by screws passed
through the holes made in the fixing ears b. b.
In making picture rod hooks according to my invention I take the cylindrical
tubing represented in Figure 6 and by a drawing operation give to the said tubing
the sectional figure represented in Figure 7 the tubing Figure 6 being supported
during the drawing operation upon a mandril of the size and sectional form of the

page_text: interior of the tubing Figure 7. By this drawing operation the tube is reduced in
diameter and is shaped on one side into the partly formed hook marked e. By a
second drawing operation the shaped tubing Figure 7 is fashioned into the form
represented in Figure 8; that is, a cylindrical supporting mandril of the diameter
of the tubular part fis used in the tube and the unsupported side part e is flattened
and shaped or curved by the drawing die into the form of a hook as represented
at Figure 8.
I do not limit myself to the use of two drawing operations for the production of
the fashioned tubing Figure 8.
By cutting transversely from the tubing Figure 8 narrow strips or pieces as
indicated in dotted lines at g, g in the said Figure 8, picture rod hooks are produced.
One of the picture rod hooks made from the tubing Figure 8 is represented in
Figure 9 the part of the hook which slides upon the picture rod being marked f and
the hooked part being marked e².
Having now particularly described and ascertained the nature of my invention
and the manner in which the same is to be performed I declare that I claim
as my invention :-
First Manufacturing stair rod eyes by taking cylindrical tubing of brass or
other ductile metal or alloy and by a series of drawing operations giving the
cylindrical tubing the sectional form of the body and wing pieces of a stair rod eye
and making stair rod eyes from the said fashioned tubing by cutting transversely
therefrom narrow strips or pieces and finishing the wing parts of the cut off strips
by making countersunk screw holes therein substantially as hereinbefore described
and illustrated in Figures 1. 2. 3. 4 and 5 of the accompanying drawing.
:
Secondly Manufacturing picture rod hooks by taking cylindrical tubing of
brass or other ductile metal or alloy and by a series of drawing operations giving
the said cylindrical tubing the sectional form of the tubular body and hook part of
a picture rod hook and making picture rod hooks from the said fashioned tubing by
cutting transversely therefrom narrow strips or pieces substantially as herein before
described and illustrated in Figures 6 7. 8 and 9 of the accompanying drawing.
Dated the 20th day of July 1891.
GEORGE CLARKE.