IMPROVEMENTS IN DOOR FURNITURE AND IN THE METHOD OF SECURING THE SAME
Year: 1882

page_text: LETTERS PATENT to John Brownrigg of Windermere in the County of
Westmoreland, Joiner and Builder for an Invention of "IMPROVEMENTS IN
DOOR FURNITURE AND IN THE METHOD OF SECURING THE SAME
и
PROVISIONAL SPECIFICATION left by the said John Brownrigg. at the
Office of the Commissioners of Patents on the 1st July 1882.
JOHN BROWNRIGG of Windermere in the County of Westmoreland Joiner and
builder "IMPROVEMENTS IN DOOR FURNITURE AND IN THE METHOD OF SECURING
THE SAME
"
This invention relates to door furniture and to the method of securing the same
and the improvements consist in the use of a concave spring washer with a
doweled adjusting nut in combination with the ordinary through spindle screwed
into the knob The adjusting nut is screwed up the spindle to its required
position and the spring washer through the centre of which is a square hole for
the reception of the spindle is pushed against the nut a dowel pin in which enters
a notch in the outer edge of the washer and the nut is thereby held firm, the
knob is then screwed up until the washer rests flat against the shoulder of the
knob Door furniture so constructed is inexpensive, easy to fix and the cross
screws or keys in the knob are dispensed with

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said John Brownrigg in the Great Seal Patent Office on the
1st January 1883.
JOHN BROWNRIGG of Windermere in the County of Westmoreland, Joiner and
Builder "IMPROVEMENTS IN DOOR FURNITURE AND IN THE METHOD OF SECURING
THE SAME
"
This Invention relates to door furniture and to the method of securing the same
and the improvements consist in the use of a concave spring washer with a
doweled ajusting nut in combination with the ordinary through spindle screwed
into the knob. The adjusting nut is screwed up the spindle to its required
position and the spring washer through the centre of which is a square hole for
the reception of the spindle, is pushed against the nut, a dowel pin in which
enters a notch in the outer edge of the washer and the nut is thereby held firm ;
the knob is then screwed up until the washer rests flat against the shoulder of the
knob. In order that my Invention may be better understood I herein give
reference to the accompanying sheet of Drawings wherein Fig 1 is elevation of
the parts in position to be screwed up and Fig 2 is another elevation of the same
or similar parts when screwed up and fixed together.
The spindle A is fixed into the knob B in the usual manner and pushed through
a hole made in the door. The adjusting nut C with check pin a is then screwed
onto the spindle to the place required and the rose o and concave washer D are
afterwards placed on the spindle and pushed up against the said nut, the pin a
entering one of the notches b formed in the washer, by which means the nut is
held in its place and prevented from turning around on the spindle. The loose
knob E is afterwards screwed on the spindle sufficiently far as to compress the
concave washer against the nut, until the said washer is straightened, as shewn in
Fig 2, whereby the whole of the parts are firmly and substantially secured
together.
Figs 3 and 4 are plan views of the nut and washer.
Having now shewn and described my Invention and the manner in which it
may be put into practice I would have it understood that I do not confine myself
to the exact details herein shewn and described as they may be somewhat varied
without departing from the main features thereof, but what I consider to be new
and therefore claim as my Invention is-
The use and employment of the doweled ajusting nut C in combination with
the notched washer D in manner and for the purpose substantially as berein
shewn and described.
In witness whereof I the said John Brownrigg have hereunto set my hand
and seal this fourteenth day of December in. the year of our Lord, one
thousand eight hundred and eighty two.