IMPROVEMENTS IN LOCK AND LATCH FURNITURE, AND IN ATTACHING DOOR AND OTHER KNOBS AND HANDLES TO THEIR SPINDLES
Year: 1880

page_text: PROVISIONAL SPECIFICATION left by Henry Brittain at the Office of the
Commissioners of Patents on the 16th July 1880.
HENRY BRITTAIN, of the Firm of S. Brittain and Son, of Birmingham, in the
County of Warwick, Manufacturers. "IMPROVEMENTS IN LOCK AND LATCH
FURNITURE, AND IN ATTACHING DOOR AND OTHER KNOBS AND HANDLES TO
THEIR SPINDLES."
My Invention has reference first to the roses and escutcheons of lock and latch
furniture, and this part of my Invention consists in constructing and attaching the
said roses and escutcheons in the manner herein after described.
Instead of making the metallic rose of a ring of metal which is attached to the
door by scrows, I make the rose of a thin tube, having at one end a flange
constituting the rose proper, the end of the tube being slit or divided for the
purpose herein after described. I make the said flanged tube from sheet metal by
dies and pressure, and either in one piece or of two pieces joined together. The
flange or rose part may be made of any required shape.
In connecting the rose to a door having a mortice lock, the tubular part of the
rose is passed through the hole in the door in which the spindle is to work, the
slit end of the tube projecting into the mortice cut in the door to receive the lock.
By now expanding or clinching at right angles the slit end of the tube against
the side of the mortice in the door, the rose is fixed to the said door, the tubular
part of the rose forming a metallic collar or lining to the hole in the door in which
the spindle works. The roses at opposite sides of the door are fixed in their places
in the manner described before the lock is fixed in its mortice.
In attaching non-metallic roses to doors I use a tubular fixing piece of the kind
described, excepting that the flange part is of smaller diameter, the said flange
part, when the tubular end of the fixing piece has been expanded against the side
of the mortice, bearing against the front of the non metallic rose and fixing it in its
place, the tubular part of the fixing piece forming a metallic lining to the spindle
hole in the door as described with respect to metallic roses.
In applying my Invention to the roses of rim locks, the tubular part of the rose
is passed through the door from one side to the other. side, and the projecting end of
the tube is closed upon a rose or flange at that side of the door.
The improvements described in metallic roses to be used with mortice locks are

page_text: applicable to the construction and fixing of escutcheons of locks, that is, those parts
surrounding the key holes of the locks.
Escutcheons constructed according to my Invention are especially applicable
to the locks of carringe doors, but may also be applied to the locks of other doors
and articles.
My Invention consists, secondly, of the construction and combination of parts
herein after described for attaching door and other knobs and handles to their
spindles, whereby the ordinary neck fixing screws are dispensed with.
In applying this part of my Invention to metallic knobs I construct a rotary
screw box or screw nut for the screwed spindle to work in and secure the said screw
box or nut in the knob in the following manner:-The said screw box or screw nut
consists of two parallel discs connected together by side straps or bars. One of the
said discs has a hole in its axis, which hole is screwed to fit the screwed angles of
the square spindle. The other disc is provided with an axial bearing or pin
which is nicked or has a cross slot like the head of a wood screw. The screw box
or nut is enclosed in the-body-of-the-knob-before the said body is closed or spun
upon the neck point of the knob, the front part of the said body having an axial
bole made in it in which the bearing or pin at one end of the screw box takes.
The other or screwed end of the box or nut fits in a recess in the neck part of
the knob. When the screw box or nut is thus fitted in its place, it is capable of
rotation in the body of the knob. An elastic washer may be interposed between
the bearing or axial end of the screw box and the inside of the front of the knob
to prevent the binding of the screw box against the knob. The screw box is
rotated by means of a turn screw applied to the nicked end of the bearing at the
front of the knob.
In attaching the knob to its spindle the neck part of the knob is passed by a
sliding motion onto the square spindle, until the end of the spindle abuts against
the screwed disc of the screw box or nut. The-screw box or nut is now rotated in
the knob, and the latter is thereby drawn onto the spindle until it has been adjusted
to the proper distance on the spindle.
The axial end of the rotating screw box or nut may be concealed by an orna-
mental spring cap engaging with the nick or slot in the said axial end, or the said
spring cap may be made to lock the screw box after the knob has been adjusted.
In this case cross slots are made in the front of the knob, into which slots the
spring cap takes in addition to engaging with the nick or slot in the axial end of
the screw box or nut.
In applying my Invention to china or non-metallic knobs, I fix the rotating
screw nut, or screw box in an axial hole in the knob by means of the tubular part
of the metallic mount of the knob, the bearing end of the screw box or nut
working in an axial hole of reduced diameter at the front of the knob.
This arrangement of my Invention is also applicable to the attaching of the
inside handles of carriage doors to their spindles. In this case the axial or bearing
end of the screw box projects from the barrel or hollow head of the inside handle,
and is furnished with a hexagonal or angular head for turning it.