IMPROVE- MENTS IN FIXING DOOR AND OTHER KNOBS, AND IN CONNECTING KNOBS TO SPINDLES
Year: 1868

page_text: LETTERS PATENT to Joseph Thompson, of Manor House, 124,
Camberwell Road, and John Thompson, of 46, Camberwell Green,
both in the County of Surrey, for the Invention of "IMPROVE-
MENTS IN FIXING DOOR AND OTHER KNOBS, AND IN CONNECTING KNOBS TO
SPINDLES."
Sealed the 5th September 1868, and dated the 7th March 1868.
PROVISIONAL SPECIFICATION left by the said Joseph Thompson and
John Thompson at the Office of the Commissioners of Patents, with
their Petition, on the 7th March 1868...
We, JOSEPH THOMPSON, of Manor House, 124, Camberwell Road, and
JOHN THOMPSON, of 46, Camberwell Green, both in the County of
Surrey, do hereby declare the nature of the said Invention for "IMPROVE-
MENTS IN FIXING DOOR AND OTHER KNOBS, AND IN CONNECTING KNOBS TO.
SPINDLES," to be as follows:-
This Invention has for its object improvements in fixing door and
other knobs, and in connecting knobs to spindles.
In order to fix a knob on each side of a door when the door is fitted
with a mortice lock, we form around the boss or stem of the knob a

page_text: V groove; the boss or stem of the knob is received into and fits in a
recess in a rose or plate which is fixed to the side of the door by screws
or otherwise, and in order to retain the boss or stem of the knob within
the recess in the rose plate two or more screws are passed through
the sides of the rose plate, so that the ends shall enter the V groove in
the knob, and the ends of the screws are caused to bear against the
sides of the V grooves nearest to the door; the knob is thus held up to
the side of the door or to the rose plate upon it, but yet is free to turn
within the recess in the rose plate. A square hole or recess is formed
through the centre of the stem or boss of the knob to, receive the end
of the lock spindle as is usual. When a knob of china, glass, or wood
is to be used then we affix to the stem of the knob a metal boss which
lias a V groove formed around its exterior, and has a square hole formed
through the centre of the boss to receive the spindle of the lock. In
those cases where a rim lock or latch lock is fixed to the side of a door
then in order to fasten the end of the spindle which projects out from
the lock to a knob we form the end of the spindle with a screw thread
upon it to screw into a corresponding thread cut in the stem of the
knob. When the end of a spindle has thus been screwed into a knob
the knob is retained from screwing off therefrom by means of a small
square collar which fits over the spindle and into a recess in the end
of the stem of the knob. The spindle with a knob thus affixed to one
of its ends is passed into its place through the lock and through the
door; a small nut is then screwed on to the opposite end of the spindle
and caused to bear against a rose plate fixed on that side of the door.
A knob is then applied to the end of the spindle and retained, in its
place within a recess in the rose plate, allowing space for adjustment as
herein-before described. In place of thus fixing one end of a spindle
to a knob, a rose plate might be attached to the plate of the lock by
rivets or otherwise and the knob secured to the rose plate, as herein-
before described. In some cases we form the rose plate with a projecting
flange around its exterior to overlap a ring or plate of china, wood, or
ather material, and hold it securely against the side of a door.
The arrangement above described for fixing a knob to the side of a
door may also be employed for fixing knobs to shutters, drawers, or
otherwise.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Joseph Thompson and John Thompson in the
Great Seal Patent Office on the 7th September 1868.
TO ALL TO WHOM THESE PRESENTS SHALL COME, wc, JOSEPH
5 THOMPSON, of Manor House, 124, Camberwell Road, and JOHN THOMPSON,
of 46, Camberwell Green, both in the County of Surrey, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Seventh day of March, in the year
of our Lord One thousand eight hundred and sixty-eight, in the thirty-
first year of Her reign, did for Herself, Her heirs and successors, give
and grant unto us, the said Joseph Thompson and John Thompson, Her
special licence that we, the said Joseph Thompson and John Thompson,
our executors, administrators, and assigns, or such others as we, the said
Joseph Thompson and John Thompson, our executors, administrators,
and assigns, should at any time agree with, and no others, from time
to time and at all times thereafter during the term therein expressed,
should and lawfully might make, use, exercise, and vend, within the
United Kingdom of Great Britain and Ireland, the Channel Islands,
and Isle of Man, an Invention for "IMPROVEMENTS IN FIXING DOOB AND
OTHER KNOBS, AND IN CONNECTING KNOBS TO SPINDLES," upon the condition
(amongst others) that we, the said Joseph Thompson and John
Thompson, our executors or administrators, by an instrument in writing
under our or their hands and seals, or under the hand and seal
of one of us or them, should particularly describe and ascertain
the nature of the said Invention, and in what manner the same was
to be performed, and cause the same to be filed in the Great Seal
Patent Office within six calendar months next and immediately after
the date of the said Letters Patent.
NOW KNOW YE, that we, the said Joseph Thompson and John
Thompson, do hereby declare the nature of the said Invention, and
in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement thereof, that is to
say:-
This Invention has for its object improvements in fixing door and
other knobs, and in connecting knobs to spindles.
In order to fix a knob on each side of a door when the door is fitted

page_text: with a mortice lock we form around the boss or stem of the knob
a V or similar groove. The boss or stem of the knob is received
into and fits in a recess in a rose or plate which is fixed to the side
of the door by screws or otherwise, and in order to retain the boss or
stem of the knob within the recess in the rose plate two or more screws
or other projections from the rose plate enter the groove in the knob,
the ends of the screws or projections being caused to bear against the
inclined side of the groove nearest to the door, the knob is thus held
up to the side of the door or to the rose plate upon it, but yet is free
to turn within the recess in the rose plate. A square hole or recess is
'formed through the centre of the stem or boss of the knob to receive
the end of the lock spindle as is usual. When a knob of china, glass,
or wood is to be used then we affix to the stem of the knob a metal
boss which has a groove formed around its exterior and has a square
hole formed through the centre of the boss to receive the spindle of the
lock. In those cases where a rim lock or latch lock is fixed to the side
of a door, then in order to fasten the end of the spindle which projects
out from the lock to a knob we form the end of the spindle with a screw
thread upon it to screw into a corresponding thread cut in the stem
of the knob. When the end of a spindle has thus been screwed into a
knob the knob is retained from screwing off therefrom by means of a
small square collar which fits over the spindle and into a recess in the
end of the stem of the knob. The spindle with a knob thus affixed to
one of its ends is passed into its place through the lock and through
the door; a small nut is then screwed on to the opposite end of the
spindle and caused to bear against a rose plate fixed on that side of the
door; a knob is then applied to the end of the spindle and retained
in its place within a recess in the rose plate, allowing space for adjust-
ment as herein-before described. In place of thus fixing one end of
the spindle to a knob a rose plate might be attached to the plate of the
lock by rivets or otherwise and the knob secured to the rose plate as
herein-before described. In some cases we form the rose plate with
a projecting flange around its exterior to overlap a ring or plate of
china, wood, or other material, and hold it securely against the side
of a door.

page_text: And in order that our invention may be funy understood and readny
carried into effect, we will proceed to describe the Drawings hereunto
annexed.
DESCRIPTION OF THE DRAWINGS.
The Drawings hereunto annexed show varrious arrangements, in each
of which the boss or stem of the knob fits within a recess in a rose,
and in which also a projection from the rose is caused to bear against
the inclined side of a groove in the boss or stem of the knob and so
to hold the knob up to the side of the door or the rose plate upon it.
The arrangement shown at Figure 1 is suitable for being employed
when a mortice lock is used. a is the spindle of the lock; b, the rose;
c, the boss or stem of the handle in which is formed the groove c¹,
the side of which that is nearest to the door being inclined as shewn.
Two or more screws d are passed through the side of the rose and their
ends are caused to bear against the inclined side of the groove c¹, a
split ring of steel e being placed between the ends of the screws and
the side of the groove as shown, so that the ends of the screws may
not wear away the side of the groove. The upper surface of the ring e
may be roughened or have projections upon it to come against the
end of the screw so that the ring may be prevented from turning.
A similar arrangement to that above described is shown at Figure 2;
in this case however the ring e in place of being in two halves as in
Figure 1, is in one piece; and in order that it may be inserted into
the groove c¹ the stem of the knob is in two parts which screw together,
as shown by the Drawing. The ring e is pressed down by the screws d
against the inclined side of the groove c¹, and thus the knob is held
against the rose plate.
Another arrangement is shown at Figure 3. In this arrangement the
ring e, which is caused to bear against the side of the groove c¹ is
screwed into the rose in place of being attached to it by screws, as in
the arrangement shown at Figure 2, a set screw f may be employed to
prevent the ring e from turning after it has been sufficiently screwed
into the rose to cause it to bear with the requisite pressure against the side
of the groove c². The ring e is in one piece, and to insert it into the
groove c' the stem of the knob is made in two parts which screw together
as in Figure 2. This Figure also shows the metal stem c of the knob
to be screwed into a wooden knob c.

page_text: Figure 4 shows a similar arrangement to that just described, but the
stem c has a knob of china or glass adapted to it.
Figure 5 shews the same arrangement where the knob is entirely of
metal. This Figure also shows how the arrangement may be applied
to a latch lock, the rose plate 6 being affixed by rivets to the lock
plate.
Figure 6 shows our improved method of fixing the end of a lock
spindle to its knob. a is the spindle, with a screw thread cut on its
end to screw into the metal boss of the knob; g is the small collar
which fits over the square portion of the spindle and also into a
corresponding recess in the boss of the knob, as shown in the plan view,
Figure 7. By this method of fixing a knob to the spindle the use of
all side fixing screws is avoided. When a spindle with a knob thus
affixed to it is passed into its place through the lock and through the
door a nut is screwed on to its opposite end and caused to bear
against a rose plate, as shown at Figure 8, and a knob then applied to
the spindle in the manner herein-before fully described; or our improved
mode of fixing a knob to a lock spindle may be employed when other
arrangements are adopted for connecting the knob which is applied to
the opposite end of the spindle to the door.
The last part of our Invention is illustrated in Figures 3 and 4 of the
Drawings, wherein the metal rose 6 is shown to be formed with a
projecting flange to overlap and so hold in position a ring k, which may
be of china, wood, or other material.
In witness whereof, we, the said Joseph Thompson and John
Thompson, have hereunto set our hands and seals, this Seventh
day of September, in the year of our Lord One thousand eight
hundred and sixty-eight.