SECURING DOOR HANDLES OR KNOBS TO SPIND
Year: 1886

page_text: JOHN BARRY O'CALLAGHAN, 22, Keppel Street, Russell Square, London, W.C.
Commercial Traveller, do hereby declare the nature of my invention for SECURING
DOOR HANDLES OR KNOBS TO THEIR SPINDLES to be as follows:-
I take the square spindle threaded at the angles; as commonly used; the handle
or knob is also of ordinary form with a square hole to fit the square of the spindle;
to this knob or handle a nut or capstan which is tapped to fit the thread on the
angles of the spindle is permenantly attached by being burred over a flange on
the front or shank end of the knob or handle. This nut or capstan is turned on
the spindle by the aid of a bradawl or similar tool being inserted in a hole made
for that purpose & thus the knob or handle is drawn on to the spindle until it
reaches the position where it is intended to remain. A washer of leather or other
soft material may or may not be introduced under the burr of the nut or capstan
previously to its being turned over on the knob.

page_text: I JOHN BARRY-O'CALLAGHAN of 22 Keppel Street, Russell Square London, W.C.
Surveyor do hereby declare the nature of my invention for IMPROVED MEANS
FOR SECURING DOOR HANDLES OR KNOBS TO THEIR SPINDLES and in what manner
the same is to be performed, to be particularly described and ascertained in and
by the following statement :-
According to my invention I cut a thread on, one end of the spindle: which is of
the ordinary form with square transverse section. The handle or knob is also of
the ordinary form except that it is made with a flange on the inner or shank end.
It has in it a square hole extending through the shank end into which the spindle
when inserted exactly fits. A nut with a cylinder projecting from one end is per-
menantly attached to the handle by having its cylinder end burred over the flange
on the shank end of the handle; or the cylinder may be dispensed with & the nut
attached to the shank end of the handle by any other known method; but it
should be so attached that by the application of force it may be made to, revolve
around the shank. The nut has a thread cut in it to correspond with the thread
of the spindle & fitting it. When this nut thus attached to the handle is screwed
on to the spindle it pulls the handle along with it until it reaches a position firmly
against a square holed washer closely fitting the spindle & pressing against a nut
previously screwed on to the spindle. In this position it will permenantly remain.
In order that the nut may be easily screwed on or off a small hole is made in it at
right angles to the line of the spindle, into which a bradawl or some similar instru-
ment may be inserted, & used as a lever to turn & bring the nut to its proper
position. A washer of leather or soft material may or may not be introduced
within the cylinder of the nut previously to its being permenantly burred over the
flange.
Fig. 1, shows a longitudinal section of the shank end of the handle A, & of
the nut B, with its cylinder end a a, before it is burred over the flange b b on the
shank of the handle. cc shows a transverse section of the leather washer in a
circular groove which has been cut in the nut. e shows the hole in the nut
where the power is to be applied to turn it, in drawing the handle on to the
spindle.
Fig. 2 shows a longitudinal section of the shank end of the handle A, also the
nut B with its cylinder end a a burred over the flange bb, also the transverse
section of the leather washer cc in position. Fig. 2 also shews the handle A drawn
on to the spindle S, also a section of the rose rr attached to the surface of the
door, with a hole corresponding to the hole e in the nut through which the power
is to be applied to turn the said nut; also the inner nut nn in place, & the
square-holed washer ww also in place, against which the nut B is firmly screwed.
Figs. 3, 4, 5, 6, 7 & 8 show as follows:-3 plan of the nut with cylinder end;
4 plan of the leather washer; 5 plan of the inner nut; 6 elevation of the inner nut;
7 plan of the square-holed washer; 8 elevation of the square-holed washer.

page_text: Fig. 9 shows a longitudinal section of the door D with an elevation & part
section of the handle Å attached to it in place; also the handle O permenantly
attached to the spindle.
Having now particularly described & ascertained the nature of my said inven-
tion I declare that I do not claim any particular method of attaching a nut to the
shank end of a handle or knob, nor any particular contrivance for screwing the nut
on or off the spindle, nor the arrangement of the square-holed washer pressing
against a nut previously screwed on to the spindle; but I declare my claim
to be -
A nut permenantly attached to the shank end of the handle or knob, & so
attached that it can be made to revolve around the said shank by the application
of force, the object of which is to pull the handle or knob on to the spindle & hold
it permenantly in place substantially as set forth.
In witness whereof, I, the said John Barry-O'Callaghan have hereunto set my
hand & seal this twenty seventh day of October, in the year of our Lord,
One thousand eight hundred and eighty six.
JNO. BARRY O'CALLAGHAN,