Improvements in the Manufacture of Metal Handle Knobs and other Metallic Kuobs.
Year: 1899

page_text: PRUVIDIONAL DEVIFICATION.
Improvements in the Manufacture of Metal Handle Knobs and other
Metallic Kuobs.
I, SAMUEL TIMINGS, of 55, Great Hampton Street, in the City of Birmingham,
Brassfounder, do hereby declare the nature of-this invention to be as follows:-
This invention has reference to those metal knobs which are fixed to cabinet
handle plates coffin handle plates, and the like to receive the ends of the drop
handle, and also to similar. handle knobs. which are used without handle plates
and are adapted to fix to drawer fronts and coffin sides. My invention is also
applicable to the manufacture of other kinds of knobs from sheet metal such
as drawer knobs door knobs and knobs for fenders metallic bedsteads and other
kinds of knobs.
"
Ov
I will first describe my invention as applied to the manufacture of a sheet
metal knob which has neck and an enlarged base and beyond the base has a..
tubular shank or part for passing through and fastening to the handle plate
drawer front or the like.
하
In carrying out my invention I first form a sheet metal. blank which is rather
longer than is the required knob and its tubular shank and in width is equal
to about twice the diameter of the knob. The portion of the blank which is to
form the knob proper is of semi-circular or semi-oblong form with a notch at
each side corresponding with the neck and then an enlargement corresponding
with the base of the knob the remaining portion of the blank which forms the
tubular shank being reduced in width. By means of press tools the said blank
has an indented channel raised across that part which is to form the base of the
knob and by other press tools in the next operation the blank is raised into a
trough shape the sides and the rounded part which forms the knob proper being
turned upwardly all round... In the next operation the press tools are shaped
so as to close in the edges of the trough bringing them together at the neck and
base of the knob and shaping the: knob.proper into a spherical or approximately
spherical form but leaving a hole for the insertion of the end of the drop handle.
The edges of the blank along the tubular shank part of the knob do not meet
but are at a short distance apart so that when this. shank part is inserted in a
hole in the handle plate a small projection in the said hole takes into this groove
or slot in the shank part of the knob and thus prevents the knob from turning
round and then the knob is secured to the plate by the end of the shank being
opened out and spread over at: the back of the plate so that the latter is firmly
gripped between the base of the knob and the spread over and enlarged end
of the knob shank.
When the knob is required to be fixed to a drawer front or to a coffin side
direct without a handle plate the tubular shank part of the knob is made long
enough to pass through the drawer front or coffin side and clench over on the
inside of the same and may have one two or more side prongs left on the blank

page_text: to clench over and make the knob more secure. When the knob is required
to have a screwed stem for its attachment as is the case with some knobs this
stem is laid in the open end of the tubular shank of the knob and the latter is
closed round and secured to the stem by press tools or by other means.
When the knob is required as a terminal ornament or for any purpose where
it is not necessary to have a hole in one side then the sheet metal blank is made
of such a shape that when it is raised and closed round as above described the
edges of the blank will meet and there will be no hole in the side of the knob.
Dated this 2nd day of March 1899.
CHARLES BOSWORTH KETLEY,
Agent for the Applicant.
Improvements in the Manufacture of Metal Handle Knobs and other
Metallic Knobs.
I, SAMUEL TIMINGS, of 55, Great Hampton Street, in the City of Birmingham,
Brassfounder, 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 has reference to those metal knobs which are fixed to cabinet
handle plates coffin handle plates and the like to receive the ends of the drop
handle, and also to similar handle knobs which are used without handle plates
and are adapted to fix to drawer fronts and coffin sides. My invention is also
applicable to the manufacture of other kinds of knobs from sheet metal such
as drawer knobs and knobs for fenders metallic bedsteads and other kinds of
knobs.
I will describe my invention by referring to the accompanying drawings on
which Fig. 1 is a front elevation and Fig. 2 is a side elevation of a metal handle
knob made in accordance with this invention; Fig. 3 shews a sheet metal blank
from which the said handle knob is to be formed; Fig. 4 shews one stage in the
formation of the blank Fig. 3 into the finished handle knob Figs. 1 and 2;
Figs. 5 and 6 illustrate the method of securing the handle knob to the handle
plate; Fig. 7 is a front elevation and Fig. 8 is a side elevation of a slightly
modified form of my invention; Fig. 9 shews another form of my invention
provided with a screwed shank for its attachment; Fig. 10 shews the sheet
metal blank for forming a drawer or other knob in accordance with this inven-
tion; Fig. 11 is a side elevation partly in section of the top and bottom tools for
raising the blank Fig. 3 into the shape shewn by Fig. 4; Fig. 12 is an inverted
plan of the said top tool and Fig. 13 is a plan of the bottom tool; Fig. 14 is a
sectional elevation of the top and bottom-tools which are used for pressing the
partly finished handle knob Fig. 4 into the finished shape represented by Figs. 1
and 2; Fig. 15 is an inverted plan of the top tool represented in Fig. 14 and
Fig. 16 is a plan of the bottom tool represented in Fig. 14.
The same letters of reference indicate the same or corresponding parts in all
the figures.
I will first describe my invention as applied to the manufacture of the sheet
metal handle knob A represented in Figs. 1 and 2 which has a neck a¹ and an
enlarged base a and beyond the base has a tubular shank a³ or part for passing
through and fastening to the handle plate drawer front or the like.
In carrying out my invention I first form a sheet metal blank such as shewn

page_text: in Fig. 3 which is rather longer than is the required knob and its. tubular shank
shewn in Fig. 1 and in width as equal to about twice the diameter of the knob
proper A. The portion A of the blank which is to form the knob proper A is
of semi-circular or semi-oblong form with a notch a¹ at each side corresponding.
with the neck a¹ of the finished knob and below the notches an enlargement a³
corresponding with the base a² of the knob, the remaining portion a³ of the
blank which is to form the tubular shank being reduced in width. The first
operation on the blank is formed by the top and bottom tools B C represented
in Figs. 11, 12 and 13, of which the bottom tool C is sunk with a U-section
recess of which the part d' corresponds with the knob proper A the part c³
corresponds with the neck a² and the part corresponds with the neck a³ The
top tool B is a punch shaped to correspond with the recess c¹³ in the bottom
tool C and fit the inside of the knob. The blank shewn in Fig. 3 is laid in
position on the top of the bottom tool C over the recess therein and then when
the top tool B descends the blank is forced into the recess c¹² and thus at one
operation is raised into the trough shape represented in Figs. 4 and 11 the part a²
which is to form the collar a² being of an indented channel shape inside and
the sides and rounded part of the blank being turned upwardly all round. The
next operation is performed by the press tools represented in Figs. 14, 15 and 16
of which the bottom tool D is made with a recess of the shape to fit and
receive the blank in the form represented by Fig. 4 as shewn by dotted lines in
Fig. 14. The top tool E is made with a recess el which is practically the same
shape as the recess c¹³ of the bottom tool C, that is to say, the recess e¹
corresponds with the external shape of the finished knob so that when the top
tool E descends the recess e¹ will act upon the edges at of the raised blank Fig. 4
bringing them together at the neck and edges of the knob as shewn in Fig. 1
and shape the knob proper A into a spherical or approximately spherical form
but leaving a hole for the insertion of the end of the handle. The edges a¹
of the blank along the tubular shank part a³ of the knob do not meet but are
at a short distance apart forming a groove or slot (see Figs. 1, 5 and 6) so
that when the shank part at is inserted in the hole f of the handle plate F
(see Fig. 5) a small projection in the said hole f takes into this groove or
slot in the shank part a of the knob and thus prevents the knob from turning
round and then the knob is secured to the plate F by the end of the shank a
being opened and spread over at the back of the plate as in Fig. 6 so that the-
latter is firmly gripped between the base a² of the knob and the spread over
and enlarged end a³ of the knob shank.
When the knob is required to be fixed to a drawer front or a coffin side direct
without a handle plate, the tubular shank part a³ is made long enough to pass
through the drawer front or coffin side and clenched over on the inside of the
same, and as shewn in Figs. 7 and 8 the said shank may have one. two or more
side prongs a a8 left on the blank to clench over and make the knob more.
secure.
When the knob is required to have a screwed stem such as H Fig. 9 for its
attachment as is the case with some knobs this stem is by preference forged with
a collar near its unscrewed end and is laid in the open end of the tubular
shank a whilst the blank is in the form represented by Fig. 4 and the latter is
closed round and secured to the stem H by press tools or other means the
collar fitting in the hollow part or channel part of the base a² and thus making
the shank H perfectly secure.
When the knob is required as a terminal ornament or for any purpose where
it is not necessary to have the hole a5 in one side then the sheet metal blank
from which the knob is formed is made of the shape represented by Fig. 10.
that is to say, it has a bulged out part a' at each side so that when it is raised
and closed round as above described the edges of the blank will meet or almost
neet as in Fig. 9 and there will be no hole a in the side of the knob.
1

page_text: Having now particularly described, and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim 18:
The manufacture of. metal handle knobs and other metallic, knobs from
sheet metal blanks in the manner substantially as hereinbefore described. and
illustrated by the accompanying drawings...
2. A metal handle knob or other metallic, knob made from à sheet metal
blank in the manner substantially as hereinbefore described and illustrated, by
the accompanying drawings.
3. The combination with a metallic .handles plate of two sheet metal handle
knobs such as A secured. thereto. by the shanks.a³ of the knobs fitting in holes
of the handle plate and clenched, over on the back of the same, said holes, in
the handle plate having projections which engage in slots a in the knobs to
prevent the same from turning round, substantially as set forth. ».
Datád this 1st doy of December 1899
14
CHARLES BOSWORTH KETLEY,
Agent for the Applicant..
CHARLES BOSWORTH KETLEY,
Agent for the Applicant...