IMPROVEMENTS IN OR APPLICABLE TO THE KNOBS OR HANDLES OF LOCKS AND LATCHES
Year: 1870

page_text: LETTERS PATENT to Joseph Kellett, of Wyke, near Bradford, in the
County of York, Draughtsman, for the Invention of "IMPROVEMENTS
IN OR APPLICABLE TO THE KNOBS OR HANDLES OF LOCKS AND LATCHES."
Sealed the 7th March 1871, and dated the 9th September 1870.
PROVISIONAL SPECIFICATION left by the said Joseph Kellett at the
Office of the Commissioners of Patents, with his Petition, on the
9th September 1870.
I, JOSEPH KELLETT, of Wyke, near Bradford, in the County of York,
Draughtsman, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN OR APPLICABLE TO THE KNOBS OR HANDLES OF LOCKS AND
LATCHES," to be as follows:
This Inventon relates to an improved method or means of attaching
such knobs or handles to their spindles securely, and so as to be readily
adjusted to the thickness of the door or other article to which the lock
or latch may be applied. For this purpose I use the ordinary square
spindle having a screw thread cut on the angles, which screws into a

page_text: tapped hole in the knob or handle or a brush fixed therein in the usual
manner. In the face or spindle end of the knob or of the bush I cut
or form a dovetail slot from one side of the hole to receive a cotter or
stop piece, one end being square or straight so as to fit against any of
the sides of the spindle, and the other end formed to the outer surface
of the knob end, and having a groove forming a segment of a screw
thread. A collar or ring is made to fit over this end of the knob having
an inward projecting flange forming an incline or curved wedge made
to fit the groove in the cotter, and so that by turning the said collar
on the knob in one direction the cotter will be pressed against the
spindle, and thereby hold it in position or fixed in the knob, and by
turning in the opposite direction the cotter will be relieved, so that the
spindle may turn in the knob or bush.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Joseph Kellett in the Great Seal Patent Office
on the 9th March 1871.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, Joseph
KELLETT, of Wyke, near Bradford, in the County of York, Draughtsman,
send greeting.
1
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Ninth day of September, in the year of
our Lord One thousand eight hundred and seventy, in the thirty-fourth
year of Her reign, did, for Herself, Her heirs and successors, give and
grant unto me, the said Joseph Kellett, Her special licence that I,
the said Joseph Kellett, my executors, administrators, and assigns,
or such others as I, the said Joseph Kellett, my executors, adminis-
trators, 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 OR APPLICABLE
ΤΟ THE KNOBS OR HANDLES OF LOCKS AND LATCHES," upon the condition
(amongst others) that I, the said Joseph Kellett, my executors or
administrators, by an instrument in writing under my, or their, or one
of their hands and seals, should particularly describe and ascertain the

page_text: 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 I, the said Joseph Kellett, do hereby declare
the nature of my said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the
following statement and accompanying Sheet of Drawings, that is to
say:
means of attaching
This Invention relates to an improved method or
such knobs or handles to their spindles securely, and so as to be readily
adjusted to the thickness of the door or other article to which the lock
or latch may be applied. For this purpose I use the ordinary square
spindle, having a screw thread cut on the angles, which screws into a
tapped hole in the knob or handle, or into a bush fixed therein in the
usual manner. In the face or spindle end of the knob, or of the bush,
I cut or form a dovetail slot or a slot hole from one side of the spindle
hole through to the outer surface to receive a cotter or stop piece, onc
end of this cotter being square or straight so as to fit against any of
the sides of the spindle, and the other end formed to a curve slightly
projecting above the outer surface of the knob end, and having a groove
formed therein. A collar or ring is made to fit over this end of the
knob, having an inward projecting flange forming an incline or curved
wedge made to fit the groove in the cotter, and so that by turning the
said collar on the knob in one direction the cotter will be pressed against
the spindle, and thereby hold it in position or fixed in the knob, and by
turning it in the opposite direction the cotter will be relieved so that
the spindle may turn in the knob or bush.
In order that this Invention may be fully understood I herein give
reference to an accompanying Sheet of Drawings of a knob or handle
constructed in accordance therewith.
Figs. and 2 are side and end elevations of the knob, shewing a slot
hole A which may be cut through the face and dovetailed therein;
Figs. 3 and 4 are side and edge views of the cotter B made to fit the
slot hole; Figs. 5 and 6 are front and edge views of the collar C, Fig. 6,
being partly in section to shew the flange projecting inward, to fit into
the groove b in the cotter; Figs. 7 and 8 are end views of the knob with
the spindle D, and the cotter B in its place with the collar C placed

page_text: over it; Fig. 7 shews the collar in position where a recess is formed in
the flange so as to allow the cotter to be at liberty to rise for the spindle
to turn in the knob, and Fig. 8 shews the collar turned with the flange
pressing upon the cotter to hold it down against the spindle, and thereby
to prevent its turning in the knob; Fig. 9 is a longitudinal section,
shewing all the parts in their proper position, E being a bearing ring for
holding a china rose F fast on the door by means of screws G; Figs. 10
and 11 are views of the said ring E; Fig. 12 being an edge view of
the rose; and Fig. 13 is an elevation of the knob complete.
It will now be readily seen that when the recess or notch in the flange
of the collar is placed over the outer end of the cotter, the knob or
handle may be turned freely on the spindle until it fits close to the ring
fixed on the door, then, by turning the collar on the knob, the wedge-
formed flange will gradually press the cotter close down upon one-of-the-
flattened sides of the spindle and thereby hold the knob firmly in
position.
Having thus described the nature of the said Invention, and shewn
by Drawings in what manner the same is to be or may be performed or
put into practice, I would have it understood that I do not confine
or restrict myself to the precise details of construction as shewn and
described, but what I claim as of my Invention is, the method or means
of attaching, adjusting, and securing knobs or handles to spindles
by cotter and wedge-formed collar, in manner substantially as shewn and
described.
In witness whereof, I, the said Joseph Kellett, have hereunto
set my hand and scal, this Eighth day of March, in the year of
of our Lord One thousand eight hundred and seventy-one.
JOSEPH KELLETT. (L.S.)