Improvements in Spindling Door and other Knobs.
Year: 1889

page_text: Date of Application, 15th July, 1889
Complete Specification Left, 15th Apr., 1890-Accepted, 5th July, 1890
PROVISIONAL SPECIFICATION.
Improvements in Spindling Door and other Knobs.
We, ALFRED BROWN and HENRY CLARKE PRUCE trading as Alfred Brown and
Company of Newhall Street in the City of Birmingham, Merchants and Manu-
facturers, do hereby declare the nature of this invention to be as follows:--
This invention relates to means, for securing door and other knobs to their
spindles, and consists essentially in employing obliquely crossing and interlying
discs, which when separated, by the driving home of the point of a small screw
between them, they clutch the spindle on its two opposite sides, and there hold it
within the neck of the knob.
In carrying out our invention, we take an ordinary knob, with a square hole
directed upwardly through its neck, and with the foot or pummel thereof, sunken or
recessed, wherein a pair of interlying, and obliquely crossing gapped discs are disposed
and lie. These interlying discs have rectangular gaps directed inwardly to beyond
their widdles, and when the discs come together, they form a rectangular shaped eye
or opening, about their middles, of the cross section of the spindle to be clutched
by them.
When the discs are in position, in the foot or pummel of the knob, the axis of the
small screw is directed between the discs, and when driven home, the said discs are
separated and turn axially one upon each other, in such a manner, that the planes of
the said discs become changed, and the vertical distance between the top and bottom
sides of the gap diminished; so that the change, of the planes as aforesaid, causes the
said top and bottom sides to grip the spindle, and thereby hold it firmly in any
adjusted position.
It may be observed that the said discs cross each other alike in form to the letter X,
and that the screw comes between the top or bottom arms of it, so as to change the
planes, and diminish the size of the hole disposed at the middles of the combined
discs. These clutch discs may be opened out by a wedge, cotter, pin, or other
like expedient, driven between the discs in manner alike unto that of a screw as
aforesaid.
D: 19th of Tul.. 1000
ALFRED BROWN.
HENRY CLARKE PRUCE.
By Henry Skerrett,
Agent for Applicants.
COMPLETE SPECIFICATION.
Improvements in Spindling Door and other Knobs.
We, ALFRED BROWN and HENRY CLARKE PRUCE trading as Alfred Brown and
Company of Newhall Street, in the City of Birmingham, Morchants and Manu-
facturers, 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:-
This invention relates to means for securing door and other knobs, to their spindles,
and consists essentially in employing a clamping plate, or clamping plates, which on
being brought over, or separated by the point of a small screw, on the same being
driven home, either against or between them, the plate or plates, clamp the spindle,
and firmly hold the same within the neck of the knob.
In carrying out our invention, we take an ordinary knob, with a square spindle,
DRIT

page_text: Figure 11 shows another form of our invention, in which two snugs, and two screws,
are employed, for the rotation or taking home of the clamping plate.
a is the knob, a² the neck, b the clamping plate, its spindle hole or eye, and
snugs, against which screws d, d', impinge; whilst c is the spindle which may be
plain, or notched upon its angles, but preferably the latter.
It will be seen that in figures 6 to 10, the views under them, represent edge views
of the same.
Figure 12 represents a modification of the securing means as described, and figure 13
represents the clamping plate separately.
a is the knob, as its neck, a³ a lug or solid part, formed within the inside of the said
neck, and wherethrough a screw d, whose end d² takes within a countersunk or
recess ³, formed within the shoulder, of the clamping plate b, whose spindle hole b³,
takes over or surrounds the spindle C, takes.
The driving home of the screw, takes over or slightly turns the plate, and thereby
brings the boundary edges of the hole or eye 6, into serrations or notches on the
angles of the spindle; or the said edges may come upon the faces or sides of the
spindle, and hold the said spindle in its adjusted position, by pressure alone.
Figure 14 represents a cross section of another form of our invention, and figure 15
a front and edge view of the clamping plate. In this arrangement, the clamping plate
has a screwed hole through it, and is turned through the desired angle, by the rotation
of a screw, passing through it, and the neck of the knob.
a is the knob, a² the neck, the clamping plate, & its spindle hole or eye, b³ a snug,
with a screw hole directed through it, d a small screw, and c the spindle.
Figure 16 represents partly in elevation, and partly in vertical section, another form
of our invention for securing knobs to their spindles.
In this arrangement two clamping plates or dovices are employed instead of one, as
in the preceeding figures.
Figure 17 represents a like view as figure 16, but with the small screw driven home,
and the knob secured.
Figure 18 represents a transverse section on the dotted lines CD, figure 17.
Figure 19 represents in front elevation, and edge view, the clamping plates or
devices.
Figure 20 represents an edge view of the same, interlying or obliquely crossing
each other, and in the positions which they assume, when in use.
a is a knob, a² the neck thereof, at a recess sunken within the foot or pummel a³.
Lying within the said recess, and surrounding the plain spindle c, is a clamping
device d, consisting of a pair of interlying or obliquely-crossing gapped dises 61, 62, 63,
of which is the gap, and ² the eye or hole, of the size of the outside cross section
of the spindle.
These plates or discs, when interlying and crossing each other, as in figure 20, form
or enclose a complete rectangular shaped eye of the size of the cross section of the
spindle to be clutched by them.
Directed through the neck of the knob and coming equally between the plates, is a
small screw d, which when driven home, separates the plates, in manner that the planes of
them become changed and the vertical distance between the top and bottom boundary
edges of their holes or gaps, diminished, which causes the said top and bottom sides to
grip the top and bottom faces of the spindle thereby firmly holding it, by contact or
impingement, as in figures 17 and 18.
It will be observed that the clamping plates cross each other, alike in figure to that
of a flattened X, and that the spindle eye or hole of them, is diminished in size, by
their opening out, through the aid of a screw, cottar, pin or other equivalent driven
between them.
Although we prefer that the spindle should be notched or wormed on its angles, and
that the inside edges of the spindle holes of the clamping plate or plates, should be
notched, yet plain spindles, and plain spindle holes of the plates, may be used, so that
the holding of the spindle is performed by the impingement or contact of the plates,
by opening out or inclining, or being moved in a direction parallel to their axes, and

page_text: further, that although we have described that in the single plate, the same is made to
slightly rotate, yet the same result, or nearly the same, may be obtained by inclining
or obliquely directing the said plate, so as to diminish the distance between the
gripping edges.
Instead of employing screws, driven-in pins, or jointed slides, or the like, may be
used, for giving the necessary angular or turning movement to the clamping plate or
plates.
Instead of a single plate b, lamina plates may be employed, with the boundary edges
of the eyes or holes, slightly changed, in position, so as to form a serrated like edged
spindle hole or eye.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is
:
First Securing knobs to their spindles, or upon their spindles, by obliquely or
axially moved clamping or locking plates, operated by a screw or screws, or its or their
equivalents, substantially as described and set forth.
Secondly: The combination with the square axial hole a³, of a knob, and a square
spindle c, (plain or notched) of a clamping plate or device b, and its accessory parts,
as described and set forth in figures 1 to 11.
Thirdly Securing knobs to their spindles, by means arranged and operating,
substantially as described and set forth in figures 12, 13, 14 and 15.
Fourthly Securing knobs to their spindles, by interlying and crossly directed
clamping plates, which on being separated, open out and clutch the spindle, as described
and set forth in figures 16, 17, 18, 19, & 20.
Lastly The general construction and arrangement of the parts herein described
for securing knobs to their spindles.
Dated this 11th day of April 1890.
ALFRED BROWN.
HENRY CLARKE PRUCE.
By Henry Skerrett,
Agent for Applicants.