Improvements in the Method of and Means Employed for Securing Door Handles or Knobs on their Spindles.
Year: 1899

page_text: Date of Application, 1st Apr., 1899
Complete Specification Left, 30th Dec., 1899-Accepted, 10th Feb., 1900
PROVISIONAL SPECIFICATION.
Improvements in the Method of and Means Employed for Securing
Door Handles or Knobs on their Spindles.
I, JOSEPH EDMONDSON, of Albert Electrical Works, Hey Street, Longside Lane,
Bradford, in the County of York, Electrical Engineer, do hereby declare the
nature of this invention to be as follows:-
This invention relates to improvements in the manufacture of door knobs or
handles and in the method of and means employed for securing such knobs or
handles on their spindles the object being to dispense with the grub screw
heretofore employed and to provide a means whereby the knobs or handles can
effectually be prevented from turning on the spindle and whereby they can be
fixed at any point so as to ensure their being close up to the escutcheon and
free from play. The knobs or handles can be quickly and easily removed and
replaced and when in position are securely fixed by a lock nut, spring, key, or
other device.
According to this invention an angular and preferably square spindle is employed
the corners of which are threaded and the hole in the knob or handle is also square
and is fixed on the square spindle by means of a nut internally threaded and
having the thread partly cut away so as to allow the nut to be slided onto the
square spindle until in the required position where it is securely fixed by giving
it a partial turn so that its threads engage with the threads on the spindle and
the knob or handle is securely fixed. The nut is locked either by a lock nut,
a spring, a key, or other equivalent device. The lock nut is preferably fixed on
the spindle through a circular hole in the knob, a continuation of the square hole
for the spindle.
Instead of the special nut above described I may use an ordinary nut fixed
by a lock nut or other device.
Improvements in the Method of and Means Employed for Securing
Door Handles or Knobs on their Spindles.
I, JOSEPH EDMONDSON, of Albert Electrical Works, Hey Street, Longside Lane,
Bradford, in the County of York, Electrical Engineer, 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 relates to improvements in the manufacture of door knobs or

page_text: handles and in the method of and means employed for securing such knobs or
handles on their spindles, the object being "to dispense with the grub screw
heretofore employed and to provide a means whereby the knobs or handles can
effectually be prevented from turning on the spindle and whereby they can be
fixed at any point so as to ensure their being close up to the escutcheon and
free from play. The knobs or handles can be quickly and easily removed and
replaced and when in position are securely fixed by a lock nut, spring, key, or
other device.
Such being the nature and object of my said invention, the following is a
complete description of same, reference being had to the accompanying drawings,
in which:
Fig. is a cross section of the improved door handle or knob on its spindle,
the other end of which is attached to an ordinary fixed knob.
Fig. 2 is an end view of the nut and spindle.
Fig. is a similar view to Fig. 2 but the nut is given a quarter turn and
locks and engages with the spindle.
Fig. 4 is a side elevation of the nut.
Fig. 5 is an end sectional view of the knob.
Fig. 6 is an end elevation of the door knob and nut shewing a lock screw for
fixing the nut.
Fig, is a cross section of the improved door handle or knob on its spindle,
the other end of which is attached to a knob in which is shewn the means for
operating the modified form of lock nut shewn in this drawing.
Fig. 8 is a view of the inside of the casting attached to the door knob.
Fig. 9 is an end view of the door knob shewing the washer which fits in the
casting.
Fig. 10 is an end view of the locking nut.
Fig. 1 is a side view of Fig. 10.
According to this invention the spindle is of angular or square section and
passes through a square hole in a metal casting 2 which is fixed on the handle or
knob 3. The corners of the spindle 1 are threaded and engage with a nut 4 in
a cylindrical plug 5 which is inserted in the handle 3 as shewn in Figs. 1 and G.
The nut 4 has a squared hole therein (see Figs. 2 and 3) so that the spindle 1
can be inserted to its required position and then securely fixed by giving the
nut a partial turn which causes the threads in it to engage with the threads
on the spindle 1 (see Fig. 3). To render the locking and unlocking action of the
nut certain a small portion 6 of the nut is cut away (see Fig. 4) and in this cut
away portion or recess 6 is received the projection or catch 7 on the casting 2
and this limits the turning or amount of movement of the cylindrical plug 5
which can only be moved to one of two positions, one of which locks it to the
spindle (see Fig. 3) and the other unlocks it (see Fig. 2). The plug 5 is pre-
vented from turning or working loose in the handle or knob by means of a
screw 5 or key passing between the plug 5 and the handle 3 (see Fig. 6) or by
means of a small spring 8 one end of which is fixed in the recess 9 in the knob 3
and the other end engages with one or other of the recesses 10 in the cylindrical
plug 5 (see Figs. 1, 4 and 5).
Referring to Figs. 7 to 11 inclusive which shew a modified form of nut or
fastening device. The handle or knob 3 is secured to a casting 10 which is
hollowed out for a flanged nut 11 on the edge of which is a projecting pin 12
which extends through a hole or slot 13 in the casting 10 and can be moved
sideways to and fro therein. When the pin 12 is at one end of the slot 13 the
nut 11 and spindle 1 are in the same relative positions as shewn in Fig. 2 and
the handle can be taken off or put on, but when the pin 12 is moved to the
opposite end of the slot 18 the relative positions of the nut 11 and spindle 1 are
in the position illustrated by Fig. 3 and the knob or handle is fixed." When the
pin 12 of the nut 11 is moved to either end of the slot 13 it is held there by
the spring 14 forcing it into the depressions 15 of which there is one at each

page_text: end of the slot 13 (see Fig. 7). Inside the casting 10 is a squared recess 16
(see Fig. 8) and in this recess is received the washer 17 of corresponding shape,
which is fixed to the handle. or knob and this prevents any liability of the knob
turning in the casting even after long continued use.
The invention as illustrated on Sheet 1 of the drawings is specially applicable to
wooden knobs or handles, and that illustrated on Sheet 2 to porcelain knobs or
handles, but neither form is confined to these knobs or handles.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, 1 declare that what
1 claim is:
(1) The general construction, arrangement and combination of parts constituting
the improved method of and means employed for securing door handles or knobs
on their spindles as herein described and substantially as illustrated by Sheet 1
of the annexed drawings.
(2) The square or angular spindle 1 with threaded corners the nut 4 in the
cylindrical plug 5 the whole contained in the handle or knob 3 all in combination
as and for the purpose herein described and substantially as illustrated by Sheet 1
of the annexed drawings.
(3) The general construction, arrangement, and combination of parts constituting
the improved method of and means employed for securing door handles or knobs
on their spindles as herein described and substantially as illustrated by Sheet 2
of the annexed drawings.
(4) The square or angular spindle 1 with the threaded corners, the nut 11 and
pin 12 projecting through the slot 13 in the casting 10 in which is the squared
recess 16 a corresponding washer 17 being on the knob 3, all in combination
as and for the purpose herein described and substantially as illustrated by Sheet 2
of the accompanying drawings.
(5) The square or angular spindle 1 with the threaded corners, the nut 11 and
pin 12 projecting through the slot 13 in the casting 10 all in combination as and
for the purpose herein described and substantially as illustrated by Sheet 2 of the
drawings annexed.
(6) An angular spindle threaded on its angles, a nut for the same with corres-
ponding recesses for the angles of the spindle so contrived that in one position the
nut is free to move along the spindle, but in a second position the threads of the
nut engage with the threads of the spindle and prevent the nut from moving along
the spindle as and for the purpose herein described and substantially as illustrated
by the annexed drawings.