Improvements in Window Curtain Poles.
Year: 1892

page_text: Date of Application, 19th Apr., 1892
Complete Specification Left, 5th Jan., 1893-Accepted, 18th Feb., 1993
PROVISIONAL SPECIFICATION.
Improvements in Window Curtain Poles.
GEORGE CHISHOLM Junior of the Town and County of Stirling North Britain
Brassfounder do hereby declare the nature of this invention to be as follows:-
This invention which relates to window curtain poles has for its object to obviate
the necessity for bending or shaping the tubes usually constituting such poles to the
contour of the window recesses in which they are fitted.
To that end I form swivel or knee joints in the length of the pole at those parts
where the ordinary rigid pole is kneed or bent to fit the corners or angles of the
window recess such joints being adapted to permit of portions of the pole swivelling
in a horizontal plane and assuming varying degrees of angularity to the adjoining
portions. The joints are or may conveniently be composed of short shank pieces
fitting in sockets formed in or by lengths of the pole, one shank end being flattened
and entered between forked jaws or in a slotted bulb or ball formed on the adjoining
end the parts being connected by a vertical pin or being otherwise pin-jointed
so that whilst permitting of swivelling movement in a horizontal plane the pole
will not yield to the weight of the curtains suspended from it.
Dated 16th day of April 1892.
D. DRYSDALE AUSTIN,
Applicant's Agent.
COMPLETE SPECIFICATION.
Improvements in Window Curtain Poles.
GEORGE CHISHOLM Junior of the Town and County of Stirling North Britain
Brassfounder 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 which relates to window curtain poles has for its object to
obviate the necessity for bending or shaping the tubes usually constituting such
poles to the contour of the window recesses in which they are fitted.
To carry out the purpose or object above mentioned, I form swivel or knee
joints in the length of the pole at those parts where the ordinary rigid pole is
kneed or bent to fit the corners or angles of the window recess, such joints
being adapted to permit of portions of the poles swivelling in a horizontal
plane, and assuming varying degrees of angularity to the adjoining portions.
The joints are or may conveniently be composed of short shank pieces fitting
into sockets formed in, or by lengths of the pole, one shank end being flattened,
and entered between forked jaws or in a slotted bulb or ball formed on the
adjoining end, the parts being connected by a vertical pin or being otherwise
pin-jointed, so that whilst permitting of swivelling movement in a horizontal
plane, the pole will not yield to the weight of the curtains suspended from it.
In order that my said invention may be properly understood, and readily
carried into effect, I will now proceed to describe the drawings hereunto
annexed.
Figure 1 is a general view representing in plan a complete window curtain
pole, made in accordance with and constituting my said invention.
Figure 2 is a horizontal section of a swivel or knee joint corresponding to the
part marked A. of the general view Figure 1.

page_text: Figure 3 is a similar view to Figure 2, corresponding to the part marked B, also
of the general view Figure 1 drawn to an enlarged scale.
The simplification and fewness of the mechanical parts primarily constituting
novel features of my invention I shall now proceed to describe.
Into the angular section D of the pole, is inserted the socket E, held in position
by the screw stud a, and into which is fitted at one of its ends, a core of wood, or
other suitable material F. The upper end of the said socket E, terminates in a
hollow bulb G, which has cut upon it, near to the end thereof, a slot H, of such
length as shall determine the range of swivelling action, the joint is capable of
exerting. Fitting into the horizontal section D' of the pole is inserted the socket E¹,
similar to the one last described, but in place of a bulb, the socket is provided with
a link I, which projects therefrom, with a hole drilled in its outer end. The link I.
is inserted within the slot H, and is pivotally connected thereto by mean of a
transverse vertical pin J. It will be seen from the arrangement that a movement
in one plane (the horizontal plane) only can be had, and this by only one section,
due to the construction of the slot H and link I, its adjacent section remaining
stationary; that is to say, the horizontal length of the pole, occupying the front
portion of the window will remain rigid, whereas a considerable range of angularity
can always be obtained by the before mentioned construction of joint by the side
sections D in the direction of the arrows indicated in Figure 1.
Instead of the bulb or club ended shape of the socket E, I may construct it
spherical as represented by K, Figure 3, or 1 may use both the bulb as seen in
Figure 2, and the sphere or ball as seen in Figure 3.
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. In a window curtain pole, the arrangement and combination of parts, con-
sisting of a socket or sockets, connecting the angular sections together, by means of
a single link, working in a slotted bulb, and pivotted to a transverse swivelling pin,
operating substantially as described and shown in Figures 1 & 2.
Second. In a window curtain pole, the sockets connecting the angular sections
together by means of a single link, working in a slotted ball or sphere, pivoted
to a transverse swivelling pin, as in Figure 3, and suitably connecting together
the sockets to the said curtain pole, substantially as described and shown in
Figures 1. 2 & 3.
Dated this 15th day of November 1892.
D. DRYSDALE AUSTIN,
45, Hope Street, Glasgow, Applicant's Agent.