IMPROVEMENTS IN DOOR FURNITURE AND IN THE METHOD of SECURING THE SAME
Year: 1880

page_text: LETTERS PATENT to John Brownrigg, of Windermere, in the County of
Westmoreland, Joiner and Builder, for an Invention of "IMPROVEMENTS IN
PROVISIONAL SPECIFICATION left by the said John Brownrigg at the
Office of the Commissioners of Patents on the 22nd November 1880.
JOHN BROWNRIGG, of Windermere, in the County of Westmoreland, Joiner
and Builder. "IMPROVEMENTS IN DOOR FURNITURE AND IN THE METHOD of
SECURING THE SAME."
My improvements consist in the employment of a separate spindle for each knob.
These spindles are permanently fixed to the knobs and inserted into the lock from
each side of the door, securing a more free action than the ordinary through spindle,
especially when the axle of the lock is not perfectly square.
The knobs are secured to plates (which are screwed to the door) by means
of slotted sliding pieces which slide in grooves in the fixing plates and
pass through the neck of the knob. The sliding plates are kept in position by
means of the "rose," which is cupped to fit the outside of the fixing plate, and when
placed over the same and turned partly round the fixing is complete.
By my Invention closet doors can be fitted with single furniture with knob on
one side, and all knobs may be removed for painting independently of one another
and without removing any screws, whereby the woodwork does not become
worn.

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 20th
May 1881.
JOHN BROWNRIGG, of Windermere, in the County of Westmoreland, Joiner
and Builder. "IMPROVEMENTS IN DOOR FURNITURE AND IN THE METHOD OF
SECURING THE SAME."
My improvements consist in the employment of a seperate spindle for each knob.
These spindles are permanently fixed to the knobs and inserted into the lock from
each side of the door, securing a more free action than the ordinary through spindle,
especially when the axle of the lock is not perfectly square. The knobs are
secured to plates (which are screwed to the door) by means of slotted sliding pieces
which slide in grooves in the fixing plates and pass through the neck of the knob.
The sliding plates are kept in position by means of the "rose," which is cupped to
fit the outside of the fixing plate, and when placed over the same and turned partly
round the fixing is complete.
By my Invention closet doors can be fitted with single furniture with knob on
one side only, and all knobs may be removed for painting independantly of one
another and without removing any screws, whereby the woodwork does not
become worn.
In order that my Invention may be more fully understood I herein give
reference to the accompanying Sheet of Drawings illustrative thereof.
Fig. 1 represents the door furniture, partly in section, as applied to each side of a
mortice lock; Figs. 2, 3, and 4, are details, and Fig. 5 represents the method of
connecting the spindles where a rim lock is employed. The furniture shewn in
Fig. 1 consists of a spindle A grooved on one side at X, the said spindle being
screwed into a socketed knob B to such an extent that the spindle will pass half way
through the mortice lock. The spindle is fixed in the knob by pushing an
adjusting slide a along the groove in the spindle until the enlarged head thereof
enters a groove in the shoulder b of the knob, thus preventing the knob from
turning upon the spindle. A fixing plate C, on which is formed a neck c having
a flange D, is screwed to the door, and the knob being placed thereon two
fixing slides E are inserted from opposite sides through a mortice in the socket F
of the knob so as to encircle the neck c. The plate C is notched and bevilled at its
margin, as shewn in Fig. 2, and the rose H is also notched and bevilled to
correspond with the plate, so that when the rose is placed over the plate and
turned a few degrees round, the slides E are prevented from working out and the
furniture is secured.
When applied to a rim lock the knob on the lock side of the door is secured to
the lock by a round nut L screwed on the spindle against the inside of the
lock, and having a connecting nut M fit on the end of the spindle. These being
inserted in the door receive the end of the spindle from the other side of the
door.
According to my Invention the furniture is single detaching, that is to say, the
knob and spindle can be removed from one side of the door without interfereing
with the utility of the knob on the other side. The shoulder of the knobs bears
equally all round, and firm and free action is thereby secured, whether the lock
follower is square with the door or not, whereas when a long spindle is passed
through a door the knobs frequently bind themselves by resting unequally against
their shoulder bearings. The fixing slides cannot come loose with usage, and
strength and durability is obtained. The furniture is also applied to closet doors
where a handle is required on one side only.

page_text: Having thus described the nature of my Invention, I would have it understood
that I claim,
Firstly. The use of the sliding piece a for fixing the knob upon the spindle.
Secondly. The several parts C, c, D, E, and H, operating in manner and for the
purpose substantially as herein shewn and described.
Thirdly. The parts L and M employed in connection with a rim lock, as and for
the purpose herein shewn and described.
In witness whereof, I, the said John Brownrigg, have hereunto set my
hand and seal, this Seventeenth day of May, in the year of our Lord One
thousand eight hundred and eighty one.
JOHN BROWNRIGG. (L.S.)