Improvements in Lock Furniture for Doors.
Year: 1896

page_text: Date of Application, 11th Nov., 1896-Accepted, 9th Jan., 1897
Improvements in Lock Furniture for Doors.
I, WALTER BROWN HARVEY DRAYSON, of 2 Newgate Street, Lonlon,
Engineer, do hereby declare the nature of this invention, and in what manner the
same is to be performed, to be particularly described and ascertained in and by
the following statement :-
.
It is well known that in latch-locks as at present fitted to doors the spindle to
which the latch-actuating knobs or handles are attached is usually passed through
and rotates in a hole bored in the door in a position corresponding to the hole in
the "follower" of the latch. This hole in the door through which the spindle
passes is often bored of too large a size, or if bored originally to the proper size is
liable to become enlarged by the friction of the spindle working in it. In either
case the hole fails to act as a guide for the spindle, and the latter soon becomes
loose and unsteady because it has, in such case, no other guide than the hole in the
"follower" which is not usually of sufficient depth or strength to hold the spindle
steadily while the latter is being turned to draw back the latch.
The object of my invention is to provide efficient means for guiding and holding
the spindle steadily and preventing it from becoming loose and unsteady, and for
this purpose I bush the hole in the door with metal or other suitable material
which is sufficiently hard to withstand the friction of the spindle turning in it.
The bushes may be applied in a variety of ways, but I prefer to apply them in
conjunction with the roses or washers usually interposed between the knobs or
handles and the surfaces of the door, as illustrated in the accompanying sheet
of drawings, in which Figure 1 is a section of part of the lock stile of a door taken
at the point where the spindle passes through it, and showing my invention
applied thereto. Figure 2 is a section taken on the line X-X of Figure 1.
A represents part of the stile of an ordinary door, B the case of a mortise lock
inserted therein, C the latch "follower," D the ordinary square spindle passing
through a corresponding square hole in the "follower" and having a knob or
handle E secured to it at each end. F is the hole through the door bored to
correspond with the hole in the "follower" C but made somewhat larger than
usual. G are bushings preferably of metal, but any other suitable and sufficiently
hard material may be employed. Each of these bushings has a cylindrical
hole H bored through it of a diameter equal to, or a little larger than the diagonal
of the square spindle D, so that the latter can turn freely in the said hole H, as
shown clearly in Figure 2. I prefer to make each bush G in one piece with its
corresponding rose or washer I, as shown in Figure 1, but if. preferred they may
be made independent of the roses or washers. They may be secured in the hole F
by being driven tightly thereinto or they may be made with an external screw-
thread and be screwed into the hole. When the bush is made in one piece with
the rose I it may be adapted to fit loosely in the hole being held securely in
place by the attachment of the rose to the door in the usual way by means of the
screws K.
In cases where rim locks are employed it will only be necessary to provide one
bush which will be fixed on the side of the door opposite to that on which the lock
is fixed.
It will now be understood that the bushes G guide and hold the spindle D
steadily, and being of comparatively hard material they are less liable to be worn
away by the friction of the spindle than, the wood of the door.

page_text: Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
First. The improvement in lock furniture for doors which consists in the employ-
ment of a bushing of metal or other suitable material inserted in the hole of the
door through which the spindle passes, and adapted to guide and support
the said spindle while allowing the same to turn freely therein, substantially as
described.
Second. The improvement in the roses or washers employed in lock furniture
which consists in combining therewith a bushing which enters the hole in the door
through which the spindle passes, such bushing being adapted to guide and support
the said spindle while allowing the same to turn freely therein, substantially as
described.
Dated this 11th day of November 1896
W. B. H. DRAYSON,
Per W. H. Beck,
115 Cannon Street, London, E.C., Agent.