AN IMPROVEMENT OR IMPROVEMENTS IN THE MANUFACTURE OF THE CASES OR BARRELS AND STAPLES OF SOCKET BOLTS FOR DOORS AND OTHER ARTICLES, AND IN TOOLS TO BE USED IN THE SAID MANUFACTURE."
Year: 1882

page_text: LETTERS PATENT to William Randle, of Birmingham, in the County of
Warwick, Manager of Tube Mill, for an Invention of "AN IMPROVEMENT OR
IMPROVEMENTS IN THE MANUFACTURE OF THE CASES OR BARRELS AND
STAPLES OF SOCKET BOLTS FOR DOORS AND OTHER ARTICLES, AND IN TOOLS
TO BE USED IN THE SAID MANUFACTURE."
PROVISIONAL SPECIFICATION left by the said William Randle at the
Office of the Commissioners of Patents on the 15th February 1882.
WILLIAM RANDLE, of Birmingham in the County of Warwick, Manager of Tube
Mill. "AN IMPROVEMENT OR IMPROVEMENTS IN THE MANUFACTURE OF THE
CASES OR BARRELS AND STAPLES OF SOCKET BOLTS FOR DOORS AND OTHER
ARTICLES AND IN TOOLS TO BE USED IN THE SAID MANUFACTURE'
"
My Invention relates principally to the manufacture of brass cases or barrels
and staples for socket bolts for doors and other articles but is also applicable to
the manufacture of iron and other cases or barrels and staples for socket bolts.
By cases or barrels I mean the tube in which the bolt slides combined with the
plate by which the said tube is attached to the door or article.
I will describe my Invention in its application to the manufacture of brass cases
or barrels and staples for socket bolts. The said brass cases or barrels and staples
are ordinarily made by casting and are dressed or finished by filing.
In making brass cases or barrels and staples for socket bolts according to my
Invention, I employ brass tubing of a cylindrical figure and by means of the
drawing process conducted with tools of the kind hereinafter described, I give to
the said tubing the form of the required case or barrel; the said fashioned tubing
being cut into the required lengths forms the said cases or barrels and staples
excepting that the holes in the plates required for fixing the bolt and staple to the
door and door frame require to be made in the ordinary way as well as the slots
in the case or barrel.

page_text: This
The tools 1 employ in carrying my Invention into effect consist of two dies fixed
together during use in a frame and adjusted therein by means of a screw.
frame and dies are placed in a draw-bench and used in the same way as dies for
drawing tubes are used. The said dies are so formed that when fixed together the
opening in them has at one side the exact shape of the section of the case or barrel
and staple to be made the opening at the other side having a figure nearly inter-
mediate between the cylindrical tube to be operated upon and the case and staple
to be made.
In using these tools the tube to be operated upon is so contracted at its fore end
that the aid end can be passed through the tools. It is then taken hold of by the
tongs or forceps of the draw-bench and the drawing is effected in the ordinary
way.
When operating upon brass tubes or upon tubes of metals or alloys having a
ductility equal or nearly equal to that of brass only one drawing is necessary.
But where iron or steel cases or barrels and staples are to be made I prefer to
operate upon the tubes by two drawing processes, the dies or tools employed in the
first drawing process fashioning the cylindrical tube into a form only approximating
to that required and the tools employed in the second drawing process bringing
the tube into the exact shape required.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said William Randle in the Great Seal Patent Office on the 2nd August
1882.
WILLIAM RANDLE of Birmingham in the County of Warwick, Manager of Tube
5 Mill.
"AN IMPROVEMENT OR IMPROVEMENTS IN THE MANUFACTURE OF THE
CASES OR BARRELS AND STAPLES OF SOCKET BOLTS FOR DOORS AND OTHER
ARTICLES AND IN TOOLS TO BE USED IN THE SAID MANUFACTURE,"
My Invention relates principally to the manufacture of brass cases or barrels
and staples for socket bolts for doors and other articles, but is also applicable to
the manufacture of iron and other cases or barrels and staples for socket bolts.
By cases or barrels I mean the tube in which the bolt slides combined with the
plate by which the said tube is attached to the door or article.
I will describe my Invention in its application to the manufacture of brass cases
or barrels and staples for socket bolts.
The said brass cases or barrels and staples are ordinarily made by casting and
are dressed or finished by filing.
In making brass cases or barrels and staples for socket bolts according to my
Invention I employ brass tubing of a cylindrical figure and by means of the
drawing process conducted with tools of the kind hereinafter described, I give to
the said tubing the form of the required case or barrel, the said tubing being
supported during the drawing process by a mandril having a cylindrical or other
shape corresponding in figure to the tube of the case or barrel to be made. The
fashioned tubing being cut into the required lengths forms the said cases or barrels
and staples excepting that the holes in the plates required for fixing the bolt and
staple to the door and door frame require to be made in the ordinary way as well
as the slots in the case or barrel.
This
The tools I employ in carrying my Invention into effect consist of two dies fixed
together during use in a frame and adjusted therein by means of a screw.
frame and dies are placed in a draw-bench and used in the same way as dies for
drawing tubes are used. The said dies are so formed that when fixed together the
opening in them has at one side the exact shape of the section of the case or barrel
and staple to be made, the opening at the other side having a figure nearly inter-
mediate between the cylindrical tube to be operated upon and the case and staple
to be made.
In using these tools the tube to be operated upon is so contracted at its fore end
that the said end can be passed through the tools. It is then taken hold of by the
tongs or forceps of the draw-bench and the drawing is effected in the ordinary
way.
I will now proceed to describe with reference to the accompanying Drawings the
manner in which my Invention is to be performed.
the said tubing
I take the cylindrical brass tubing a represented in Figure
being either brazed or solid drawn, and having contracted or flattened the end 6 of
the tubing, I draw it through the pair of tools hereinafter described so as to give it
the form represented in plau and end elevation in Figure 2 and side elevation in
Figure 3, the said Figures 2 and 3 representing the fashioned portion of the tubing
joined to the cylindrical portion a which has not been operated upon by the tools.
By the drawing process, the cylindrical tubing has given to it, the exact form of
the case or barrel or staple of the socket bolt. That is to say the part c has the
shape of the tube in which the bolt slides and the part d the plate by which the
said tube is attached to the door or door frame as represented in the end elevation

page_text: of Figure 2, the plate d being joined to the tube c by a folding or doubling of the
metal as represented.
Before commencing the drawing process, a mandril is introduced into the cylin-
drical tubing a the said mandril having a cylindrical or other figure corresponding
to that of the tube of the case or barrel or staple to be made.
By means of the said mandril that part of the cylindrical tubing a from which
the tube c of the case or barrel or staple is formed is supported during the drawing
process the unsupported part of the cylindrical tubing being at liberty to be
fashioned by the tools into the plate d of the socket bolt or staple as represented
in the Drawing.
By dividing the fashioned part of the tube Figure 2 at the dotted lines e, e, e
the case or barrel represented in Figure 4 and the staple represented in Figure 5
are formed. The partly made bolt case or barrel and staple Figures 4 and 5 are
finished by forming the holes in the plates d for fixing the bolt and staple to the
door and door frame and the case or barrel c is slotted for the handle of the bolt
to work in and engage with.
Figure 6 represents in plan a finished case or barrel of a socket bolt and its
staple made according to my Invention and Figure 7 represents in plan and
Figure 8 in side elevation, the same after the bolt has been introduced into the
case or barrel.
The tools which I employ for conducting the drawing process are represented,
arranged in their frame, in front elevation in Figure 9 and vertical cross section
in Figure 10; Figure 11 represents a front elevation and Figure 12 a cross section
of the pair of tools detached from their frame; Figure 13 represents a plan of the
lower tool and Figure 14 a plan of the upper tool; Figure 15 represents a back
elevation of the pair of tools arranged for use and Figure 16 represents a back
elevation of the said tools detached.
fis the lower tool and g the upper tool, the said tools being secured in the frame h
The frame h and pair
and the upper tool g adjusted therein by the set screw i.
of tools, gare placed in a draw bench and used in the same way as dies for
drawing tubes are used. The said tools f, g when fixed together enclose between
them at the inner or distant side (see Figure 15) an opening of the exact shape of
the section of the case or barrel or staple, with its plate, to be made. The front
side of the tools or that side at which the contracted end of the tubing enters them
(see Figures 9 and 11) has a bell or trumpet mouth figure so that the metal is
gathered in by the said bell or trumpet mouth as it passes from the front to the
back of the said tools, the tube part of the case or barrel being gathered in by the
part of the lower tool f and the plate of the case or barrel by the curved
shoulder parts 1, 1 of the lower tool fand the opposed curved face of the upper
tool g.
In using the tools f, g the contracted end 6 of the tubing Figure 1 to be operated
upon is passed through the trumpet mouth of the said tools and its protruding end
taken hold of by the tongs or forceps of the draw bench and a mandril having
been introduced into the tubing, the drawing is effected in the ordinary way so
as to produce the fashioned tubing represented in Figures 2 and 3 as before
described.
When operating upon brass tubes or upon tubes of metals or alloys having a
ductility equal or nearly equal to that of brass, only one drawing is necessary.
But where iron or steel cases or barrels and staples are to be made, I prefer to
operate upon the tubes by two drawing processes, the dies or tools employed in the
first drawing process fashioning the cylindrical tube into a form only approxi-
mating to that required and the tools employed in the second drawing process
bringing the tube into the exact shape required. I do not however confine myself
to any particular number of Drawings.
.
Having now described the nature of my Invention and the manner in which the
same is to be nerformed I wish it to be understood that I do not ..

page_text: the precise details herein described and illustrated, as the same may be varied
without departing from the nature of my Invention. But I claim as my
Invention
First The improvement or improvements in the manufacture of the cases or
barrels and staples of socket bolts for doors and other articles hereinbefore described
and illustrated in Figures 1. 2. 3. 4. 5. 6. 7 and 8 of the accompanying Drawings;
that is to say, making the said cases or barrels and staples and the plates of the
same from cylindrical tubing by a drawing process or drawing processes
conducted with properly shaped tools or dies substantially as described and
illustrated.
Secondly-The improvement or improvements in tools to be used in drawing
the cases or barrels and staples of socket bolts herein before described and
illustrated in Figures 9 to 16 both inclusive of the accompanying Drawings.
In witness whereof I the said William Randle have hereunto set my hand
and seal this Thirty first day of July in the year of our Lord One
thousand eight hundred and eighty two.
Witness
GEORGE SHAW.
WILLIAM RANDLE. (LS.)