IMPROVEMENTS IN ATTACHING DOOR KNOBS TO THE SPINDLES
Year: 1885

page_text: I THOMAS ROBINSON PAXTON of Pow Street and John Street, Workington in
the County of Cumberland, Ironmonger do hereby declare the nature of my
invention for IMPROVEMENTS IN ATTACHING DOOR KNOBS TO THE SPINDLES to be
as follows:-
This invention relates to the fixing of Door knobs to the spindles by an improved
method.
In order to enable my invention to be fully understood, I will proceed to
describe the same by reference to the accompanying drawings, in which figure 1
is a sketch of the spindle with the roses A and B and the clutch washer C and the
knob D, loosely upon the said spindle, figure 2 is a plan of the inner surface of the
rose A, figure 3 is a plan of the inner surface of the rose B, with section of same,
figure 4 is a plan of the clutch washer C, and figure 5 is a plan of the inner end of
the knob D, showing the recess for the clutch washer C.
In carrying out my invention I screwthread one end of the spindle also the hole
in the end of the knob D, to suit the said screwthreaded spindle (The knob upon
the other end of the hereinbefore mentioned, being a fixture it is not shown in the
drawings) I then provide two roses A and B in figure 1, the inner surfaces which
face each other, being provided with 3 sunk parts, and 3 bevelled parts and 3 raised
parts, which fit into each other as shown in figure 1 so that when the rose B is
turned one third round the bevelled parts engage with each other which causes the
rose B, to be propelled a distance outward equal to the thickness of the clutch
washer C.
In fixing the knobs to the door, I pas one of the spindle through the door the
fast knob being on the other end, I then put upon that part of the spindle which
projects through the door, the two roses A, and B, (the raised parts of the inner
surface of the rose B being inserted into the sunk parts of the rose A) I next put
upon the said spindle the cluch washer C, close to the rose B, and screw on the
knob D untill it is close to the clutch washer C, and the recesses in the end of the
said knob are opposite the projections upon the clutch washer C, I then turn the
rose B one third round which causes the said rose to be propelled outward which
at the same time moves the clutch washer C, untill it is engaged with the recess in
the end of the knob D I then insert three screws through the two roses A, and B,
and into the door which secures all together.
By this construction the knobs can be securely attached to the door without the
aid of set screws, and the adjustment obtained is very fine.

page_text: Improvements in Attaching Door Knobs to the Spindles.
I THOMAS ROBINSON PAXTON, late of Pow Street and John Street Workington,
in the County of Cumberland Ironmonger, and now of Burton in the County of
Westmoreland do hereby declare the nature of my invention for IMPROVEMENTS
IN FIXING DOOR KNOBS TO THE SPINDLES 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 fixing of Door Knobs to the spindles by an
improved method.
In order to enable my invention to be fully understood, I will proceed to
describe the same by reference to the accompanying drawings in which Fig. 1. is
a sketch of the spindle, with the roses A and B. the clutch washer C. and the
knob D. loosely upon the said spindle. Fig. 2. is a plan of the inner surface of the
rose A. Fig. 3. is a plan of the inner surface of the rose B, with section of same
Fig. 4. is a plan of the clutch washer C, and Fig. 5, is a plan of the inner end of
the knob D, showing the recess for the clutch washer C.
In carrying out my invention I screwthread one end of the spindle, also the hole
in the knob Ď. to suit the screwthreaded spindle The knob upon the other end of
the said spindle may be a fixture, therefore it is not necessary to show it. I then
provide two roses A and B. in Fig. 1. the inner surfaces which face each other,
being provided with three sunk parts c. and three raised parts a. and three
bevelled parts, b, which said bevelled parts slope from the said raised parts to the
said sunk parts, forming altogether three archimedean projections, on each of the
said roses, which fit into each other as shown in Fig. 1. so that when the rose B. is
turned round one third of a revolution the bevelled parts engage with each other,
which causes the rose B, to be propelled a distance outward equal to the thickness
of the clutch washer C. In fixing the knobs to the door I pass one end of the
spindle through the lock and door, the fast knob being on the other end, I then put
upon that part of the spindle which projects through the door, the two roses A.
and B. the raised parts of the inner surfaces of the roses A and B, being inserted
into the sunk parts of each other, I next put upon the spindle the clutch
washer C. close to the rose B. and screw on the knob D. until it is close to the
clutch washer C. and the recesses in the end of the said knob are opposite the
projections on the clutch washer, I then turn the rose B, about one third round
which causes the said rose to be propelled outward which at the same time moves
the clutch washer C. until it is engaged with the recess in the end of the knob D.
thus fixing the said knob to the before-mentioned spindle, I then insert three
screws through the two roses A and B. and into the door, which secure altogether.
To further perfect and better enable my improved door lock knobs to be made
in all the suitable materials and combinations of materials, it will be necessary in
some cases for the roses A and B. to be made screwthreaded, so as to screw into
each other instead of being made with the archimedean projections, so long as they
are made to expand in unscrewing, so as to cause the clutch washer to slide into
the recess in the end of the knob, also in some qualities or varieties of the knobs

page_text: I put upon the spindle a plain round washer with a square hole in the centre,
underneath the clutch washer, and recess the outside of rose B to receive it to take
the friction from off the spindle, and if necessary the said plain round washer and
the clutch washer, may be made solid in one piece.
By this construction the knobs can be securely attached to the doors, and the
adjustment obtained is very fine.
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
I claim is
(1.) Expanding roses in attaching door knobs to the spindles as herein-described
and represented in the accompanying drawings.
2. The herein described arrangement of clutch washer with projections, in
connection with expanding roses and knobs with recesses in ond, substantially
as herein described and represented in accompanying drawings.
3. The improved method of attaching door knobs to the spindles, hereinbefore
described and represented in the accompanying drawings.
Dated this Fourteenth day of August eighteen hundred and eighty-six.