Improved Means for Securing Door Knobs to their Spindles.
Year: 1893

page_text: Date of Application, 27th May, 1893
Complete Specification Left, 27th Feb., 1894-Accepted, 31st Mar., 1894
PROVISIONAL SPECIFICATION.
Improved Means for Securing Door Knobs to their Spindles.
We, EDWARD COLLIER and RICHARD COLLIER, trading together as Edward
Collier and Sons, of Stour Valley Works, Barker Street, in the City of
Birmingham, Wood Turners, do hereby declare the nature of this invention to
be as follows:-
This invention has reference to those door knobs in which a small screw or pin is
used in the neck of the knob to fix the knob to its spindle such spindle being usually
square in cross section and either screw threaded at the corners to screw into the
knob or not screw threaded, the said small screw or pin taking into a hole or recess
in the knob spindle.
This invention consists of the herein described improved means for preventing
the said small screw or pin becoming loose and falling out of the knob and this
invention is applicable to door knobs of all kinds whether made of wood, china,
metal, or other substance or substances.
In carrying out this invention we employ a stout india rubber ring which is
threaded on to the neck of the knob and fits over the hole in which the said small
screw or pin fits thus effectually securing the screw or pin in place.
We prefer to turn or otherwise form a groove in the neck of the knob for the said
india rubber band to fit in and thus effectually keep the said band in place.
The screw or pin can very readily be removed when required by first rolling or
otherwise turning the india rubber band along the neck of the knob so as to expose
the screw hole.
Dated this 26th day of May 1893.
CHARLES BOSWORTH KETLEY,
Agent for the Applicants.
COMPLETE SPECIFICATION.
Improved Means for Securing Door Knobs to their Spindles.
We, EDWARD COLLIER and RICHARD COLLIER, trading together as Edward
Collier and Sons, of Stour Valley Works, Barker Street, in the City of
Birmingham, Wood Turners 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 knobs in which a small screw or pin is
used in the neck of the knob to fix the knob to its spindle such spindle being usually
square in cross section and either screw threaded at the corners to screw into the
knob or not screw threaded, the said small screw or pin taking into a hole or recess
in the knob spindle.
This invention consists of the herein described improved means for preventing
the said small screw or pin becoming loose and falling out of the knob and this
invention is applicable to door knobs of all kinds whether made of wood, china,
metal, or other substance or substances.
In carrying out this invention we employ a stout india rubber ring which is
threaded on to the neck of the knob and fits over the hole in which the said small
screw or pin fits thus effectually securing the screw or pin in place.
We prefer to turn or otherwise form a groove in the neck of the knob for the said
india rubber band to fit in and thus effectually keep the said band in place.

page_text: The screw or pin can very readily be removed when required by first rolling or
otherwise turning the india rubber band along the neck of the knob so as to expose
the screw hole.
In order that our invention may be well understood we have illustrated the same
on the accompanying sheet of drawings which shews our invention applied to a door
knob which is fixed on to a square spindle by a screw in the door knob entering a
hole in the spindle.
Fig. 1 is a side elevation of the door knob and part of its spindle with the
indiarubber ring applied to the door knob in accordance with this invention
to keep the screw in place; Fig. 2 is a longitudinal section of the same; Fig. 3
shews the same with the said indiarubber ring rolled back out of the groove in the
knob so as to expose the screw head for removing or replacing the screw; and
Fig. 4 shews the indiarubber ring separately removed from the knob.
The same letters of reference indicate the same parts in all the figures of the drawing.
A is the door knob and B is the usual small screw which is used in the neck of
the knob to fix the knob to its spindle C. D is the stout india rubber ring, shewn
separately by Fig. 4, which is threaded on to the neck of the knob A and which, as
shewn in Figs. 1 and 2, fits over the hole in which the small screw B fits and thus
effectually secures the screw B in place. a is the groove in the neck of the knob A
in which the india rubber band D fits to keep the band D in place over the screw
head. When it is required to remove the screw B the india rubber ring D has to
be first rolled or otherwise moved along the neck of the knob A, as shewn for
instance in Fig. 3, so as to expose the screw hole.
Our invention is similarly applied to those door knobs which are fixed on their
spindle by a wire pin instead of the screw B such wire pin either passing into the
knob spindle or right through the same the indiarubber ring being applied on the
neck of the knob substantially as above described so as to prevent such pin falling
out of the hole in which it fits in the neck of the knob.
It will be evident that the particular form in cross section of the india rubber
ring D may be varied without departing from the nature of this invention but the
round section shewn upon our drawings is what we prefer. It will also be evident
that for india rubber rings of some sections such for instance those which are of flat
section, or flat at that side which fits against the neck of the knob, the groove a may
be dispensed with.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
―
1. On door knobs, in combination with the screw or pin in the neck of the knob
which engages in a hole or recess in the knob spindle, the use of an india rubber
ring fitting in the neck of the door knob so as to cover the end of the said screw or
pin and maintain the same in place substantially as herein before described.
2. On door knobs, in combination with the screw or pin in the neck of the knob
which engages in a hole or recess in the knob spindle, the use of an india rubber
ring fitting in a groove in the neck of the door knob so as to cover the end of the
said screw or pin and maintain the same in place substantially as herein before
described.
3. The improved door knob provided with a screw or pin in the neck thereof to
engage with a hole or recess in the knob spindle the neck of said knob being made
with a groove such as a passing over the screw hole or pin hole and adapted to
receive an india rubber ring to maintain the said screw or pin in place substantially
as bereinbefore described.
Dated this 26th day of February 1804
CHARLES BOSWORTH KETLEY,
Agent for the Applicants.