An Improved Method of Attaching Lock Knobs, Door Knobs, and the like to their Spindles.
Year: 1889

page_text: This Specification was, upon the 27th day of November 1890, Amended under
Sections 18 to 21 of the Patents, Designs, and Trade Marks Act, 1883.
Date of Application, 1st Jan., 1889
Complete Specification Left, 20th May, 1889-Accepted, 21st Sept., 1889
PROVISIONAL SPECIFICATION.
An Improved Method of Attaching Lock Knobs, Door Knobs, and the
like to their Spindles.
I, WILLIAM HOBART BIRD "Glenthorn" Compton Road Wolverhampton Lock
Manufacturer and Merchant do hereby declare the nature of this invention to be as
follows:-
A metal nut with internal screw thread moving upon a suitably threaded square lock
spindle, said nut having formed upon its circumference a groove into which a detent
attached to neck of knob closes when in position.
COMPLETE SPECIFICATION (AMENDED).
An Improved Method of Attaching Lock Knobs, Door Knobs, and the
like to their Spindles.
I, WILLIAM HOBART BIRD of Glenthorn Villa Compton Road Wolverhampton Lock
Manufacturer, 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:-
A metal nut of square or-cylindrical-shape with a circumferential groove-therein,
turning upon un ordinary square screwed spindle a knob with recesses therein-to
receive the square spindle, and the-end-of-square-or-cylindrical nut respectively
hinged detent turning on a pin, and passing through-a-slot formed in week or pommell
of knob-n-rose of wood or metal with suitable-projection to turn over detent when
elosed.
Thus, This invention relates, to the securing of door, and other knobs to their spindles,
and consists essentially, of an annular-grooved nut, taking upon the screwed end of a
screwed spindle, and when in its adjusted position, is adapted to lie within a like shaped
recess, formed within the pummel of the knob, in front of the spindle hole of it-The
knob and nut are connected together, by a detent working transversely through the
said pummel, and taking into the groove of the nut; and which detent is prevented
from rising, by a neck or extension of the rose, coming flush upon it.
Figure 1 of the accompanying drawing, represents in front elevation, a knob, secured
to a spindle, according to my invention.
Figure 2 represents a like view of the same, but with the inner end of knob and
rose, shown in section.
Figure 3 shows an end elevation of the knob, with the spindle removed.
Figure 4 represents a transverse section, of the said knob through the pummel, where-
through the detent passes.
Figure 5 shows an end, and front elevation, of the nut or adjustment collar.
The same letters of reference indicate corresponding parts in the several figures of
the drawing.
a is a loose nut or collar, with a screwed hole a through its middle, and with an

page_text: annular groove or channel a³, cut or sunken within its outer surface, and wherein the
inside curved part e² of a jointed detent e comes, when the knob and nnt, are brought
together, for the affixing of them as hereinafter described.
bis
a square spindle, threaded or screwed upon its angles, and d is a knob, with a
plain square spindle hole f up its middle, wherein the said spindle takes and slides
longitudinally."
pummel is of the knob, with a recess or hollow c, sunken within it, of the size
and breadth of the fore, or collar part of nut, whilst the said pummel is transversly
slotted, wherein a jointed and turnback detent e takes, and by means of which, the
knob, the knob is connected to the spindle, through the intervention of the nut.
I is a rose, with an extension or neck, which when in position, as in figures 1 and 2,
comes flush with the top of the detent, and prevents it rising.
Disposed in front of the face of the knob, and over the inner and neck end of the
nut, is a supplementary plata 1, with a sleeve 12.
To secure the knob to the spindle, after the latter has been passed through a door,
or the follower of a lock, or latch, place the plate l, in position against the door, and
around the front of spindle passage through it then adjust the nut on the spindle up
to the thickness of door, and with its neck lying in the sleeve of the said plate, this
done, pass the knob home on the spindles by a sliding movement, and with the pummel
thereof, covering the collar part of nut, and when in this last named position, with
the detent, and annular collar of nut, coincident, press down, the said detent, when it
engages in the groove of the nut, and thus locks the nut and knob together, which
becomes immovable from the spindle, until the detent is again raised.
The rose is next placed in position and affixed by small screws and with its extended
or inside part, covering the pummel of knob, and top of jointed detent, as set forth
in figure 2.
Instead of the knob being connected to the screw nut, by a jointed detent or inverted
erescent-shaped plate, a screw pin may be-employed instead, and with the point-or
end thereof taking into the groove; or instead of a screw pin, a cotter-or-slide may
be-employed.
I wish it to be understood that I make no exclusive claim to the employment of an
annularly grooved mut taking upon a plain or screwed spindle, nor to the recess in the
pummel of the knob wherein the nut lies, or to the rose, as I am aware that door
furniture or knobs, with spindles, embodying these features, have been in use, and
published, prior to my invention thereof, but
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
First Securing or affixing knobs, to or on their spindles, by, or through the
intervention of an adjustable and annular-grooved screw nut, which when in position,
lies within a hollow in the pummel, or foot of the knob, and is there secured, by a
jointed detent, pin, or their equivalents, taking into the circumferential groove afore-
said substantially as described and set forth.
-Secondly Connecting knobs to their spindles, by means of un-adjustable screw nut
or internally screwed collar, (with a groove or indentation around its-circumference)
taking into a hollow in the pummel of the knob, and there-affixed by a jointed detent,
which is covered-and-prevented from rising, by a covering rose; substantially us
described and set forth.
The 20th.
..
1000
WILLIAM HOBART BIRD.
By Henry Skerrett,
Agent for Applicant..