Improvements in the Method of Manufacturing Oval Lock Furniture, Door Knobs, and like articles.
Year: 1891

page_text: Date of Application, 15th Aug., 1891
Complete Specification Left, 16th May, 1892-Accepted, 9th July, 1892
PROVISIONAL SPECIFICATION.
Improvements in the Method of Manufacturing Oval Lock Furniture,
Door Knobs, and like articles.
I, JOSEPH WALKER, of 13 and 14 Augusta Street, in the City of Birmingham
Die Sinker, do hereby declare the nature of this invention to be as follows:
My invention has for its object the cheap and rapid manufacture of oval or
elliptical door knobs, lock' handles, drawer handles and handles for like purposes;
and relates to the system or method of arranging well known tools, presses.
and mechanical appliances for producing by mechanical means capable of easy and
economical reproduction, the said handles; instead of by casting them in the
manner at present in common use.
In carrying my invention into effect I construct an oval door knob or handle of
any suitable kind of metal, by taking a sheet or strip of such metal, and stamping
blanks or elliptical or oval discs from the sheet, by means of any ordinary well
known press or stamping and piercing machine. The dies and formers or other
press tools I employ in the usual manner adopted for producing metal articles in
like presses or machines, the shape and configuration of the tools being arranged to
suit any desired oval or elliptical handle that is to be made up. I transfer the
blank preferably from the first cutting out press or machine to a second flanging
and recessing press or machine for producing a cap like or recessed and flanged
upper portion of my improved handle.
The bottom or lower portion of my improved wrought metal oval handle I
produce, by stamping and piercing in any well known manner sheets or strips of
metal, arranging in the final pressing operation such tools and appliances as will
best produce an oval cup or dish-like case with an upper edge capable of being
secured to the lower edge or flange of the companion or upper portion as before
described.
I join these two portions together after I have attached to the lower half or
portion the central boss or stem which is to receive the spindle of the lock, or the
knob plate. The manner of joining the two portions or cups together which I
prefer to employ is by burring, closing, or pressing over the flange of the upper
portion or cup to surround or enclose the lower portion or cup so as to form a
bead like rim when thus closed in and connected together. I employ any 'well
known form of press or closing tool to connect the two portions together.
Instead of joining the two portions thus together by pressing I sometimes unite
them by brazing or soldering the two meeting surfaces together. I also modify the
system of pressing the two portions together in the press or by hand manipulated
tools, by forming upon the bottom portion of my cup or case two or more projecting
lugs or pins of metal to enter into a like number of holes or recesses which
provide within the upper case, so that when one portion has been placed upon the
other the projecting lugs or pins of metal may be riveted over and a secure
connection be thus made of the two parts.
The boss or central stem attach to the lower case or cup by rivetting, brazing
or soldering in any well known ordinary manner; the form and shape of the boss
being varied to suit any particular or peculiar spindle or bolt to which it is to be
attached. Similarly construct my improved wrought oval handles with any
desired configuration and ornamentation without departing from the essential feature
of producing such handles as herein before described.
Dated this 14th day of August 1891
MARKS & CLERK,
5, Furnival's Inn, London, E.C., Agents for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in, the Method of Manufacturing Oval Lock Furniture,
Door Knobs, and like articles.
I, JOSEPH WALKER, of 13 and 14 Augusta Street, in the City of Birmingham,
Die Sinker, 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:-
My invention has for its object the cheap and rapid manufacture of oval ors
elliptical door knobs, lock handles, drawer handles and handles for like purposes;
and relates to the system or method of arranging well known tools, presses, and
mechanical appliances for producing by mechanical means capable of easy, and
economical reproduction, the said handles; instead of by casting them in the manner
at present in common use.
In carrying my invention into effect I construct an oval door knob or handle, of
any suitable kind of metal, in the manner illustrated in the accompanying sheet of
explanatory drawings, Figure 1 being a sectional elevation and Figure 2 a plan
of the cupped blank A produced by stamping from the sheet or strip metal,, the
stamping being performed by means of any ordinary well known press or stamping
and piercing machine. The dies and formers or other press tools I employ, in the
usual manner adopted for producing metal articles in like presses or machines,, the.
shape and configuration, of the tools being arranged to suit, any, desired oval for
elliptical handle that is to be made up. I transfer the blank preferably from the
first ordinary, cutting out press or machine to, a second flanging and recessing press
or machine for producing a cap like or recessed, and flanged upper portion of my.
improved handle as shown at Figure 1 and Figure 2.,
The bottom or lower portion of my improved wrought metal oval handle, L
produce by stamping and, piercing in any well known manner, sheets or strips of
inctal, arranging in the final pressing operation such tools and appliances as will
best produce an oval cup or dish-like case B Figure 3 and Figure 4 with an. upper
edge B' capable of being secured to the lower edge or flange A of the companion,
or upper portion as before described.
join these two portions together as shown in sectional elevation.. at Figure,,5
atter I have attached to the lower half or portion the central boss or, stem C
Figure 6. which is to receive the spindle of the lock, or the, knob plate. I prefer
to form the bottom or lower portion B with a small flat ring like surface B², having,
a square or other hole therein to suit the shape of the stem C. The manner of
joining the two portions or cups together which I prefer to employ, is by, burring,,
closing, or pressing over the flange of the upper portion, or cup, to surround or
enclose the lower portion or cup so as to form a bead like rim when, thus closed in
and connected, together. I employ any well known form of press or closing, tools
and dies such as D, E Figure 7 and Figure 8 to connect the two, portions together.
Instead of joining the two portions thus together by, tool pressing as shown in
sectional elevation in Figure 7 and Figure 8, with the handles also in, section, I
sometimes unite them by brazing or soldering the two meeting surfaces, A. and, B
after fitting the two together as shown at, Figures 5 and 6. I also modify, the
system of pressing the two portions, together in the press or by, hand manipulated
tools, by forming upon the bottom portion of my cup, or case two or more projecting,
lugs or pins of metal to enter into a like number of holes or recesses which I provide
within the upper case, so that when one portion has been placed upon the other, the
projecting lugs or pins of metal may be riveted over or soldered,, and, a secure
connection be thus made of the two parts.
The boss or central stem I attach to the lower case,or cup F shown in complete
sectional elevation in Figure 6 by riveting, brazing or soldering in any well known
ordinary manner; the form and shape of tlie boss being varied to suit any particular

page_text: or peculiar spindle or bolt to which it is to be attached. Similarly I construct my
improved wrought oval handles with any desired configuration and ornamentation
without departing from the essential feature of producing such handles as herein-
before described. I sometimes strengthen the handle body and cap by placing an
inner plate of steel or iron such as G within the case so that the handle is thereby
supported by means of a stronger inner distance piece or shield which prevents
collapse or alteration of form and permits also of lighter material being employed.
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. The construction of oval shaped handles out of sheet or strip metal by means
of pressing, stamping and cupping machines, substantially as and for the purposes
hereinbefore described and as illustrated in the accompanying drawings.
2. The combination and arrangement of oval shaped handles having an upper
portion such as A formed from sheet metal, to be closed upon or connected to a
lower portion such as B also formed from sheet metal substantially as herein before
described and as illustrated in the accompanying drawings.
Dated this 14th day of May 1892.
MARKS & CLERK,
5, Furnival's Inn, London, E.C., Agents for the Applicant.