Improvements in the Mounts of Door and other Knobs.
Year: 1887

page_text: Date of Application, 3rd Sept., 1887
Complete Left, 4th June, 1888
Complete Accepted, 6th July, 1888
PROVISIONAL SPECIFICATION.
Improvements in the Mounts of Door and other Knobs.
I, JAMES FREDERICK WILTSHAW, of Washington China Works, Burslem, Stafford-
shire, Potters' Manager, do hereby declare the nature of this invention to be as
follows
This invention has reference to those door and other knobs of china, earthenware,
glass, wood and other non-metallic substances in which a metallic mount having a
projecting central boss is fixed to the neck or foot of the knob through which mount
a small screw passing
the knob spindle passes into the knob where it is secured by
through the said boss into the spindle; and the object of this invention is to construct
the mount in a cheap form without impairing its efficiency.
According to my invention I make the said mounts in two parts as follows, that is
to say I form, preferably of malleable cast iron, a central boss preferably of circular
form having a square hole passing through it to fit the knob spindle and having a pro-
jecting flange in a plane at right angles to the axis of the spindle. This boss has a
transverse hole passing from the outside into the spindle hole the said transverse hole
being screw threaded for the ordinary fixing screw.
I take a sheet metal shell or cap of the same internal diameter as the foot end of
the knob on to which it fits and having a central hole of the same size and shape as
the outside of the said boss. The knob has an ordinary square spindle hole corre-
sponding with the square hole in the boss.
To fix the mount to the foot end of the knob the boss is first threaded through the
shell so that it projects beyond the outer face of the shell, the flange of the boss and
the shell lying together face to face. The boss and the shell are prevented from
turning round upon each other by a flat being formed on the boss which takes against

page_text: a corresponding flat part on the hole in the shell. The shell and boss are now placed
in position on the foot end of the knob, the boss projecting therefrom and the flange
of the boss lying between the foot of the knob and the shell; and they are there
secured by the outer edge of the shell being spun over the foot of the knob in the
well known manner.
My invention is particularly applicable to those knob mounts used with "Mace's
Door Furniture" in which the boss of the mount fits into an enlarged hole in the rose
this hole having a gap to admit of the small screw being passed into the boss to
secure the knob on the spindle.
Dated thin 1-1
2
T
1
1007
CHARLES BOSWORTH KETLEY,
Agent for the Applicant.

page_text: Improvements in the Mounts of Door and other Knobs.
I, JAMES FREDERICK WILTSHAW, of Washington China Works, Burslem, Stafford-
shire, Potters' Manager, 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 door and other knobs of china, earthenware,
glass, wood and other non-metallic substances in which a metallic mount having a
projecting central boss is fixed to the neck or foot of the knob through which mount
the knob spindle passes into the knob where it is secured by a small screw passing
through the said boss into the spindle; and the object of this invention is to construct
the mount in a cheap form without impairing its efficiency.
According to my invention I make the said mounts in two parts as follows, that is
to say I form, preferably of malleable cast iron, a central boss preferably of circular
form having a square hole passing through it to fit the knob spindle and having a pro-
jecting flange in a plane at right angles to the axis of the spindle. This boss has a
transverse hole passing from the outside into the spindle hole the said transverse hole
being screw threaded for the ordinary fixing screw.
I take a sheet metal shell or cap of the same internal diameter as the foot end of
the knob on to which it fits and having a central hole of the same size and shape as
the outside of the said boss. The knob has an ordinary square spindle hole corre-
sponding with the square hole in the boss.
To fix the mount to the foot end of the knob the boss is first threaded through the
shell so that it projects beyond the outer face of the shell, the flange of the boss and
the shell lying together face to face. The boss and the shell are prevented from
turning round upon each other by a flat being formed on the boss which takes against
a corresponding flat part on the hole in the shell. The shell and boss are now placed
in position on the foot end of the knob, the boss projecting therefrom and the flange
of the boss lying between the foot of the knob and the shell and they are there
secured by the outer edge of the shell being spun over the foot of the knob in the
well known manner.
My invention is particularly applicable to those knob mounts used with "Mace's
Door Furniture" in which the boss of the mount fits into an enlarged hole in the
rose this hole having a gap to admit of the small screw being passed into the boss to
secure the knob on the spindle.
In order that the invention may be well understood the invention is further described
more particularly with reference to the accompanying drawing on which the same
letters of reference indicate the same parts in all the Figures.
Fig. 1 represents in longitudinal section and Fig. in sectional end elevation a
knob provided with a mount made according to my invention and fixed to a spindle,
Fig. 3 represents the parts of the same separately in section and Figs. 4 and 5 are
front views of the central boss and sheet metal cap parts respectively.

page_text: a is the knob, the foot end a² of which is of the usual form and has the square
hole a for the spindle b to fit in. c is the metal boss provided with the flange c², to
fit against the foot end of the knob and having the square hole c³ to fit on the spindle b
and the transverse screw hole d for the usual fixing screw e. f is the sheet metal cap
of an internal diameter to fit on the foot end a² and having the central hole in
which the boss c fits. c is the flat part on the boss c and the corresponding flat part
in the hole is marked f.
In fixing the mount to the foot end a³ the boss c is first threaded through the cap f
and after the boss and cap have been placed in position on the foot end of the knob
the outer edge of the cap or shell is spun over the foot of the knob in the usual
manner so as to secure the boss c and the cap thereto.
When the spindle on to which the knob is required to be fixed is screw threaded
the hole is made round and tapped to screw on to such spindle.
By making the mount in two parts as herein described and illustrated the cost
thereof is considerably less than when cast in one piece of brass as my invention
enables the cap or ductile part f to be raised from sheet brass or other sheet metal or
it may be made of cast metal and the boss c can be made of cast iron.
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
1 claim is:
1st. A mount for fixing a door or other knob to its spindle consisting of two separate
parts, that is to say, a central boss for fitting on the knob spindle and a sheet or cast
metal cap securing the said boss to the knob, substantially as set forth.
2nd. The combination of parts constituting a mount for fixing a door or other knob
to its spindle constructed as hereinbefore described and illustrated by the accom-
panying drawing.
Did this tot dove of Inne 1888