SPINDLES OF DOOR LOCKS AND THE METHOD OF ATTACHING THE HANDLES THERETO
Year: 1884

page_text: I JAMES JOHN TALMAN of The Grange Harbledown near Canterbury in the
County of Kent Civil Engineer do hereby declare the nature of my invention for
SPINDLES OF DOOR LOCKS AND THE METHOD OF ATTACHING THE HANDLES THERETO
to be as follows:-
The object of this invention is to attach the handles of door locks firmly to the
spindles, so that, while they may be as easily removed and replaced as those now
in general use, they may not become loose in wear, and thus necessitate the frequent
renewal of the screws which fasten them to the spindles; also that, by always
being firm they may be more comfortable and convenient to use.
I make the spindles of square section with slightly tapered holes passing com-
pletely through. The screw, which is also tapered above the thread, I screw into
the lower side of the door handle, that is to say, the side opposite to that which
the screw first enters. The spindles may be made solid as shown at C on the
annexed drawings, in which case the holes may be made from all sides as shown.
Or, in order to secure greater firmness, the spindles may be split for a portion of
their length as shown at B, so that the taper screws or pins may press them open
and hold them tightly against the metal linings of the handles; in this case the
holes can be made from two sides only. I prefer to make the holes in the spindles
taper alternate ways. The general arrangement is shown at A on the annexed
drawings, which, (A), represents a section through a two inch door-frame and lock,
in front of the spindle. The tapered screw is shown at D.

page_text: COMPLETE SPECIFICATION.
1, JAMES JOHN TALMAN of The Grange Harbledown near Canterbury in the
County of Kent, Civil Engineer do hereby declare the nature of my invention
for SPINDLES OF DOOR LOCKS AND THE METHOD OF ATTACHING THE HANDLES
THERETO and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
The objects of this invention are to attach the handles of door locks firmly to
their spindles; to prevent their becoming loose in wear; to obviate the necessity
for the frequent renewal of the screws attaching them to the spindles; and to
make them more comfortable and convenient to use, owing to their always remaining
firmly attached to the spindles.
These objects I attain by making the pin which attaches the knob or handle to
the spindle slightly taper for the whole, or a portion, of its length, and by causing
it to pass completely through the spindle and into the lower side of the knob or
handle, or into the metal bush or lining thereof, and I prefer to cut a screw thread
on the lower part of the said pin and to screw it into the lower side of the knob or
handle, that is to say the side opposite to that at which the said pin first enters,
but I do not bind myself to this arrangement as the pin may have the thread cut
on its upper portion and be screwed into the upper part of the knob or handle, or
it may have the thread cut throughout its whole length and be screwed into the
spindle as well as into the knob or handle, or it may have the thread cut on its
middle and be screwed into the spindle only.
The knobs, or handles, may be made of glass, china, wood, or other suitable
material, bushed or lined with metal in the usual manner, the metal of the lower
side of the said bush or lining being made somewhat thicker than is now usual, in
which case I prefer to drill the lower hole through the said metal bush only, and
to tap it as shown at A. A. on the annexed drawing, or they may be of solid metal,
(with a square hole for the spindle), in which case I prefer to drill the lower hole
completely through, and in each case either, or both, of the holes may be tapped
as required.
I make the holes through the spindles to the same, or approximately the same
taper as the pins, and of such a size that the pins when screwed nearly home shall
be a good tight fit, and I prefer to taper the holes in alternate directions as shown
at B. D. and E. on the annexed drawing. The spindles, which I make of square
section, may be solid as shown at B, in which case the holes may be made from all
sides, but I prefer to make them in two pieces, as shown at E., and to join these
two pieces together by means of one or more countersunk rivets, as shown, so that
the taper pins when screwed home may force the ends apart and hold them firmly
against the insides of the knobs or handles; or as an alternative method, I partly
split the spindle as shown at D. Knobs and spindles as at present generally used
may be altered by making tapered holes through the spindles, as described, and
drilling and tapping holes in the sides of the knobs, or their bushes or linings,
opposite the existing holes, when the metal of the lower side of such bush or

page_text: lining is of sufficient thickness, otherwise the tapered pin may be screwed at its
upper part to fit the thread of the existing hole, and the point be made to fit tight
into the the fresh hole, but without being screwed into it; the only new part
required being the tapered pin.
On the annexed drawing A. A. are a pair of knobs, in section, with metal bushes;
B, an elevation of a solid spindle with the tapered holes made from all sides;
C. C., two pins, one tapered for a portion of its length and the other throughout;
D. D. D. D. D. D., the elevation plan and end views of a spindle, partly solid, and
partly split; and E. E. E. E. E. E., the elevation, end views, and two plans showing
the construction of a split spindle made in two pieces as bereinbefore described.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is
(1). The use of a taper, or partially taper, pin or screw passing completely
through the spindle of a door lock and into the opposite side of the knob or handle,
or into the metal bush or lining of the same, substantially as herein described.
(2). The use of tapered holes in a door lock spindle, combined with a taper pin
or screw passing completely through the said spindle, substantially as herein
described.
(3). The use of a split, or partially split, spindle combined with a taper pin or
screw passing completely through the said spindle and into the opposite side of the
knob or handle, or into the metal bush or lining of such knob or handle to which
the said spindle is attached, substantially as, and for the purpose herein described,