IMPROVEMENTS IN CONNECTING SPINDLES TO LOCKS AND LATCHES AND IN CONNECTING SPINDLES TO OTHER ARTICLES AND IN CONNECTING THE KNOBS AND ROSES OF DOOR KNOBS."
Year: 1882

page_text: LETTERS PATENT to John Drewitt of Peckham in the County of Surrey
Ironmonger's Manager for an Invention of "IMPROVEMENTS IN CONNECTING
SPINDLES TO LOCKS AND LATCHES AND IN CONNECTING SPINDLES TO OTHER
ARTICLES AND IN CONNECTING THE KNOBS AND ROSES OF DOOR KNOBS."
PROVISIONAL SPECIFICATION left by the said John Drewitt at the Office
of the Commissioners of Patents on the 4th October 1882.
JOHN DREWITT of Peckham in the County of Surrey Ironmonger's Manager
"IMPROVEMENTS IN CONNECTING SPINDLES TO LOCKS AND LATCHES AND IN CON-
NECTING SPINDLES TO OTHER ARTICLES AND JN CONNECTING THE KNOBS AND
ROSES OF DOOR KNOBS
"
In connecting a lock or latch spindle, to a lock or latch according to my invention
I attach one of the knobs to one end of the spindle and I make in the spindle a
series of cross holes the said holes being at such different distances from the fixed
knob as are about equal to the different thicknesses of locks and latches. After
the spindle has been passed from the outside of the lock or latch through the
follower of the said lock or latch I introduce into that one of the holes in the
spindle which is nearest the inner side of the lock or latch a pin or cotter or screw
which I fix in the said hole in any convenient manner. I prefer to use a split
cotter and after having passed it through the spindle I expand the ends of the cotter
so as to prevent its accidental withdrawal.
The spindle is thus secured to the lock or latch and the end of the spindle being
passed through the hole in the door provided for its reception the lock or latch is
fixed in its place by screwing.
The second knob may be fixed to the spindle in any of the ways commonly
practised but my method of connecting the spindle to the lock or latch herein
before described permits the ordinary fast rose knob to be used with rim locks

page_text: and all kinds of latches. The use of the fast rose knob does away with the incon-
venience of the ordinary set screws for fixing the knob the action of which screws
is unsatisfactory.
The method described for attaching a lock or latch spindle to a lock or latch may
be applied to the attaching of spindles to other articles.
In connecting door knobs and their roses according to my invention I make a
groove in the neck of the knob and I pass the rose on the neck of the knob beyond
the said groove I then fix in the groove a metallic ring the diameter of which
exceeds that of the hole in the rose and the rose is thereby prevented from passing
off the neck of the knob.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said John Drewitt in the Great Seal Patent Office on the 20th March
1883.
JOHN DREWITT of Peckham in the County of Surrey Ironmonger's Manager
"IMPROVEMENTS IN CONNECTING SPINDLES TO LOCKS AND LATCHES AND IN CON-
NECTING SPINDLES TO OTHER ARTICLES AND IN CONNECTING THE KNOBS AND
ROSES OF DOOR KNOBS'
"
In connecting a lock or latch spindle to a lock or latch according to my invention
I attach one of the knobs to one end of the spindle and I make in the spindle a
series of crossholes the said holes being at such different distances from the fixed
knob as are about equal to the different thicknesses of locks and latches. After
the spindle has been passed from the outside of the lock or latch, I introduce into
that one of the holes in the spindle which is nearest the inner side of the lock or
latch a pin or cotter or screw which I fix in the said hole in any convenient
manner. I prefer to use a split cotter and after having passed it through the
spindle I expand the ends of the cotter so as to prevent its accidental withdrawal.
The spindle is thus secured to the lock or latch and the end of the spindle being
passed through a hole in the door provided for its reception the lock or latch is
fixed in its place by screwing.
The second knob may be fixed to the spindle in any of the ways commonly
practised but my method of connecting the spindle to the lock or latch herein-
before described permits the ordinary fast rose knob to be used with rim locks and
all kinds of latches. The use of the fast rose knob does away with the incon-
venience of the ordinary set screws for fixing the knob the action of which screws
is unsatisfactory.
The method described of attaching a lock or latch spindle to a lock or latch may
be applied to the attaching of spindles to other articles..
In connecting door knobs and their roses according to my invention I make a
groove in the neck of the knob and I pass the rose on the neck of the knob beyond.
the said groove I then fix in the groove a divided metallic ring the outer diameter
of which exceeds that of the hole in the rose and the rose is thereby prevented from
passing off the neck of the knob.
I will now proceed to describe with reference to the accompanying Drawing the
manner in which my invention is to be performed
Figure 1 represents partly in side elevation and partly in section a lock spindle
connected to a rim lock according to my invention in combination with a fast rose
knob Figure 2 is a cross section of the spindle with one of the knobs in elevation
and Figure 3 represents the spindle detached from the lock together with the split
cotter and the fast rose knob.
a is the spindle and b the fast knob fixed to one end of the spindle in any
convenient way c is the fast rose or second knob fixed to the spindle a by means of
the rose e which is screwed to the door d in the usual way the neck of the knob c
being provided with an annular groove which works upon the fixed rose e.
In the
spindle a is a series of cross holes ff of such different distances from the fixed knob b
as are about equal to the different thicknesses of locks and latches g is a slit cotter
or linch pin which I prefer to use for fastening the spindle to the lock the said
cotter or pin g being passed through one of the series of holes f made in the
spindle a.
In connecting the spindle a to the lock h the said spindle with the fixed knob b
on one end is passed from the outside of the lock h through the follower of the said
lock. The split cotter or linch pin g is then introduced into that bole of the series
of holes f in the spindle which is nearest the inner side of the lock and the split
cotter g is then expanded at its ends so as to prevent its accidental withdrawal as

page_text: scen in the cross section Figure 2. The spindle is thereby connected to the lock
and the spindle being passed through the hole in the door the lock is fixed to the
door by screwing as usual. The second or fast rose knob c is next passed onto
the protruding end of the spindle a and fixed on the spindle by screwing the rose c
to the door..
Although I prefer to use with my invention a fixed rose knob c as represented
in Figure 1 yet the second or adjustable knob may be fixed to the spindle in any
convenient way. For example the second or adjustable knob c may be fixed to the
spindle by means of the ordinary neck.scrow made to take into one of a series of
holes in the spindle as represented in Figure 4.
When a more accurate adjustment than that afforded by two of the adjacent
holes in the spindle is required a metallic washer or washers may be employed
for the cotter-g to take a bearing against as shown at g² Figure 4.
Instead of using a split cotter or linch ping for connecting the spindle to the
lock as described and illustrated a slightly taper tightly fitting pin or a screw may
be employed. In the latter case the holes fin tho spindle are tapped for receiving
the said screw.
The method described and illustrated for connecting the spindle to a rim lock
may be applied to the connecting of spindles to all kinds of latches and to the
connecting of spindles to other articles for example to the attaching of the spindles
of cupboard turns to doors.
Figure 5 represents partly in side elevation and partly in section and Figure 6 in
end elevation a door knob.and rose connected together according to my invention
Figure 7 represents the knob and rose detached and the divided ring in section and
Figure 8 represents the divided ring detached.
is the door knob and m the rose the collar of which is situated upon the neck
of the knob. In the neck of the knob is a circular groove n in which the divided
metallic ring pis-fixed the outer diameter of the said ring.p when in its place on
the neck of the knob exceeding that of the hole in the rose m. The rose m having
been passed onto the neck of the knob & beyond the groove the divided ring p
is closed upon or compressed or sprung into the groove n in the knob as
represented in Figures 5 and 6. The rose m is thereby prevented from passing
off the neck of the knob but the latter is capable of turning in the rose fixed to
the door.
Having now described the nature of my invention and the manner in which the
same is to be performed I wish it to be understood that I claim as my invention
First The improvements in connecting spindles to locks and latches and-in
connecting spindles to other articles herein before described and illustrated in
Figures 12. 3 and of the accompanying Drawing; that is to say connecting
spindles to locks and latches and other articles by means of a split cotter pin or
screw passed through or into one of a series of cross holes made in the spindle
substantially as described and illustrated.
Secondly The improvement in connecting the knobs and roses of door knobs
hereinbefore described and illustrated in Figures 5. 6. 7 and 8 of the accompanying
Drawing that is to say by means of a divided metallic ring fixed in a groove in the
neck of the knob the said ring having an outside diameter exceeding that of the
hole in the rose substantially as described and illustrated.
In witness whereof I the said John Drewitt have hereunto set my hand and
seal this seventeenth day of March in the year of our Lord one thousand
eight hundred and eighty three.