Improvements in the Manufacture of Knobs for Bedsteads and -the like.
Year: 1893

page_text: Date of Application, 3rd Feb., 1893
Complete Specification Left, 3rd Nov., 1893-Accepted, 9th Dec., 1893
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Knobs for Bedsteads and
-the like.
1, WILLIAM SANDERS, Managing Director of the Firm of Sanders, Son and
Payne Limited, of Leopold Street, in the City of Birmingham, do hereby declare
the nature of this invention to be as follows:-
This invention relates to the manner in which I construct metal knobs for use
as ornaments or mounts on bedsteads or other like purposes, the object of my
invention being to construct such knobs from cast metal in a manner more
economical than is at present possible with the system of constructing such kuobs
from cast metal.
In carrying my invention into effect when constructing a knob as a head upon
the end of a pin or screw, I swage down, flatten or otherwise shape the end of the
pin or screw so as to make a roughened surface or a surface suitable for causing
the molten metal to adhere to the same. I then cast an enlarged head at the end
of the pin of common or base metal such as cast iron, by pouring such common
molten metal into a suitable mould, allowing the pin or screw to be placed therein
or carried in any ordinary manner while the metal is run about it, or before it
has time to cool. This common metal head I make of a configuration suitable
for forming the core of the exterior superior metal coat which I afterwards cast
upon it.
The outer surface of this common metal head or core I prefer to roughen or
form with grooves so as to enable the exterior shell of brass or like metal to rigidly
adhere to the same. I cast the outer knob or shell of polishing metal in any
ordinary manner, and I turn, mill, or otherwise polish the exterior surface of the
same in any usual or well known manner,
I employ the same system of casting an inner common metal core to receive an
outer superior metal coat to suit any desired form or shape of knob which it may
be required to produce, and I ornament such outer coating or provide it with
grooves or ridges for convenience of manipulation when constructing such knobs as
handles for drawers, doors coffins and the like.
I do not always form my inner core as a solid mass of metal, but I hollow the
same out by means of ordinary sand cores when casting large knobs according to
my present invention.
I construct such knobs with or without the stems and when constructing them
with hollow inner metal cores and without stems I sometimes sorow the interior of
the hole so as to enable such knobs to be attached to any pin or other screwed
article.
I modify the shape and configuration of the knobs and I arrange them with or
without pins to suit any particular requirement.
Dated this 2nd day of February 1893.

page_text: COMPLETE SPECIFICATION.
Improvements in the Manufacture of Knobs for Bedsteads and
the like.
I, WILLIAM SANDERS, Managing Director of the Firm of Sanders, Son and
Payne Limited, of Leopold Street, in the City of Birmingham, 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 relates to the manner in which I construct metal knobs for use as
ornaments or mounts on bedsteads or other. like purposes, the object of my inven-
tion being to construct auch knobs from cast metal in a manner moro economical
than is at present possible with the system of constructing such knobs from cast
metal.
In the accompanying sheet of explanatory drawings
Figure 1 is an elevation of a pin or screw which is to have a knob or head
attached to it, and Figure 2 is a plan of the same.
Figure 3 is an elevation of the pin having a head cast upon it and Figure 4 is
a sectional elevation showing this head cast on and secured in a different manner.
Figure 5 is a front elevation of the completed knob and pin and Figure 6 is a
sectional elevation of the same.
Figure 7 is an enlarged sectional elevation of my improved hollow knob.
In carrying my invention into effect when constructing a knob as a head upon
the end of a pin or screw, I swage down, flatten or otherwise shape the end of the
pin or screw A so as to make a roughened surface a, or a surface suitable for
causing the molten metal to adhere to the same, or I sometimes make a hole a',
within the flattened end in order that the molten metal may flow through it and
thus make a rivet like connection.
I then cast an enlarged head B at the end of the pin, of common or base metal
such as cast iron, by pouring such common molten metal into a suitable mould
allowing the pin or screw A to be placed wherein or carried in any ordinary manner
while the metal is run about it or on to it before it has time to cool. This common
metal head BI make of a configuration suitable for forming the core of the
exterior superior metal coat which I afterwards cast upon it.
The outer surface of this common metal head or core B I prefer to roughen or
form with grooves b, so as to enable the exterior shell C of brass or like metal to
rigidly adhere to the same. I cast the outer knob or shell C of polishing metal
in any ordinary manner, and I turn, mill, or otherwise polish the exterior surface
of the same in any usual or well known manner.
I employ the same system of casting an inner common metal core to receive an
outer superior metal coat to suit any desired form or shape of knob which it may
be required to produce, and I ornament such outer coating or provide it with
grooves or ridges for convenience of manipulation when constructing such knobs as
handles for drawers, doors coffins and the like.
I do not always form my inner core as a solid mass of metal, but I hollow the
same out as at Figure 7 by means of ordinary sand cores when casting large
knobs B C according to my present invention.
I construct such knobs with or without stems and when constructing them with
hollow inner metal cores and without stems I sometimes screw the interior of the
hole D so as to enable such knobs to be attached to any pin or other screwed
article.
I modify the shape and configuration of the knobs and I arrange them with or
without pins to suit any particular requirement.

page_text: 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 metal knobs or mounts having an inner core of cast iron
or cast inferior metal with an outer shell or casing of superior metal substantially
as and for the purposes hereinbefore described and as illustrated in the accom-
panying drawings.
2. The metal knob or mount as horeinbefore described secured to and cast upon
a pin or stem in the manner substantially as herein described and as illustrated in
the accompanying drawings.
Dated this 11009
MARKS & CLERK,
13, Temple Street, Birmingham, and
18, Southampton Buildings, Chancery Lane, London, W.C.,
Agents for the Applicant.