Improvements in Extension Standards for Floor or other Lamps or other Analogous Purposes.
Year: 1888

page_text: Date of Application, 4th Dec., 1888
Complete Specification Left, 9th Jan., 1889
Complete Specification Accepted, 16th Mar., 1889
Improvements in Extension Standards for Floor or other Lamps or
other Analogous Purposes.
I JAMES HINKS, of the firm of James Hinks and Son Limited, of Great Hampton
Street, Birmingham, in the county of Warwick, Manufacturers, do hereby declare the
nature of this invention to be as follows:-
This invention relates to improvements in what are known as lamp extension pillars
or standards, and which may be used for other analogous purposes, and has for its
object an improved combination and arrangement of parts, whereby a conical surface
is provided upon or in connection with the end of the central extending tube or pillar,
upon which acts an expanding and collapsing band or number of parts or wires
forming a band or its equivalent, the said expanding and collapsing band &c., having
further a sliding motion imparted thereto, by reason of a central rod connected there-
with and passing internally to near the top of the extending tube, terminating with
an operating lever or its equivalent by which the necessary sliding motion is
imparted.
The various parts will admit of variation in their detail, without departing from
the nature of this my invention, inasmuch for instance, I may make the expanding
or flexible part a fixture, and impart the sliding motion to the cone, or the
expanding or flexible part may consist of a number of loose parts or wires, con-
nected at their one end in such a manner that the necessary sliding action may be
imparted wherewith to bind or release the extending pillar as the case may be.
Preferably however, in constructing my arrangement, I should proceed thus:-
I provide a suitable tubular standard as a base; I further provide an extending
tubular pillar which passes down into the base pillar telescopically, passing through
a screw cap or other suitable provision at the top of the base pillar. Upon the
lower end of the extending pillar is formed a cone tapering inwards towards the
bottom.
Again. Near the top of the extending pillar, I provide a lever, the manipulating
handle of which is upon the exterior, and readily accessible, while its other end is

page_text: inside the tube, its fulcrum being formed upon the pillar itself. From the inner
part of the lever, a rod is carried downwards to and through the bottom of the
cone terminating in a disc or its equivalent, to which is attached the expanding
band. This band preferably consists of a short piece of tube, just slightly smaller
in diameter upon its exterior to the internal diameter of the base pillar. From the
upper end of this short tube and downwards for some distance, one, two or more
slits are cut, thus permitting an expanding movement outwards. The inside of this
slitted or expanding tube fits or slides upon the cone before mentioned.
A spring or its equivalent is used upon any suitable part, for the purpose of always
tending to force the slitted or expanding band forward. upon the cone as far as
possible.
Thus the action of this my arrangement would be somewhat as follows :-
In its normal condition as before intimated, the expanding band is forced forwards
upon the cone, by reason of the spring &c., thereby jamming or forcing itself between
such cone and the interior of the base pillar, thus preventing any extending or
contracting motion of the upper pillar.
Upon taking hold however of the upper or extending pillar, and manipulating the
lever (which may be done by the same hand) the expanding band is drawn off the
cone, when the said upper pillar may be extended or contracted at pleasure. Upon
letting go the lever however the expanding band is again forced upon the cone,
when the parts again become locked as before described.
By making the spring &c. forcing action about sufficient only to support the
extension pillar, lamp &c. the extension may be effected without manipulating the
lever, inasmuch as the upward lift of the central tube tends to pull the cone from
the expanding tube against the spring.
Dated this 3rd day of December 1888.
CHARLES T. POWELL,
Applicant's Agent.

page_text: other Analogous Purposes.
I JAMES HINKS, of the firm of James Hinks and Son Limited, of Great Hampton
Street, Birmingham, in the county of Warwick, Manufacturers, 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 improvements in what are known as lamp extension pillars
or standards, and which may be used for other analogous articles, and has for its
object, an improved combination and arrangement of parts, whereby a conical surface
is provided upon or in connection with the end of the central extending tube or pillar,
upon which acts an expanding and collapsing band, or number of parts or wires,
forming a band or its equivalent, the said expanding and collapsing band or its
counterpart, having further a sliding motion imparted thereto, by reason of a central
rod connected therewith and passing internally to near the top of the extending tubo,
terminating with an operating lever or its equivalent, by which the necessary sliding
motion is imparted.
The various parts will admit of variation in their detail, without departing from the
nature of this my invention, inasmuch for instance, I may make the expanding or
flexible part a fixture, and impart the sliding motion to the cone, or the expanding or.
flexible part may consist of a number of loose parts or wires, connected at their one
end in such a manner, that the necessary sliding action may be imparted, wherewith to
bind or release the extending pillar as the case may be.
Preferably however, in constructing my arrangement, I should proceed thus:-
I provide a suitable tubular standard as a base; I further provide an extending
tubular pillar, which passes down into the base pillar telescopically, passing through a
screw cap or other suitable provision at the top of the base pillar. Upon the lower
end of the extending pillar is formed a cone, tapering inwards towards the bottom.
Again. Near the top of the extending pillar, I provide a lever, the manipulating
handle of which is upon the exterior, and readily accessible, while its other part is
inside the tube, its fulcrum being formed upon the pillar itself. From the inner part
of the lever, a rod is carried downwards to and through the bottom of the cone,
terininating in a disc or its equivalent, to which is attached the expanding band.
This band preferably consists of a short piece of tube, just slightly smaller in diameter
upon its exterior to the internal diameter of the base pillar. From the upper end of
this short tube and downwards for some distance, one, two,. or more slits are cut, thus
permitting an expanding movement outwards.
The inside of this slitted or expanding tube fits or slides upon the cone before
mentioned.
A spring or its equivalent is used upon any suitable part, for the purpose of always
tending to force the slitted or expanding band forward upon the cone as far as
possible.
I will now proceed to more particularly describe how this my invention is to be
performed having reference to the accompanying illustrative sheet of drawings upon
which are figures and letters of reference, like letters referring throughout the several
views to the same thing or part, and in which :-
Fig. 1, is a part sectional elevation of standard, shewing the expanding band upon
conical surface &c.

page_text: Fig. 2, is a sectional elevation of Fig. 1, upon line A, B.
Fig. 3, is a further sectional eleлation of Fig. 1, at right angles to that of Fig. 2.
Fig. 4, is a sectional plan view of Fig. 2, upon lino C, D.
Fig. 5, is a sectional plan view of Fig. 2, upon line E, F.
Fig. 6, is an inverted sectional view of Fig. 2, upon line G, H.
Fig. 7, is a modification showing the expanding band attached to the telescopic
tube, and the cone to the operating central rod.
Fig. 8, is a sectional plan view of Fig. 7, upon line I, J.
Fig. 9, is a further modification shewing expanding band formed by loose wires.
Fig. 10, is a sectional view of Fig. 9, upon line K,-L.
Fig. 11, shews in elevation a tubular extension pillar lamp embracing this my
invention.
a, is the standard, b, is the extending or telescopic pillar. Upon the lower end of
the tube b, is formed the cone c.
Near the top of the extending pillar b, I provide the lever d, which is fulcrumed at e.
f, is a vertical rod having at its upper end a disc g, upon which presses the lover d.
The lower end of this rod is connected to the cross piece h, to which is further
attached the expanding or flexible band i. This band consists of a short piece of
tube, from the upper end of which is cut a number slits j, (see Figs. 1 & 5) for
a certain distance down, thus permitting an expanding movement outwards.
k, is a spring for the purpose of always tending to raise the rod f, and with it
the flexible band i, on to the cone c, as far as possible.
Thus the action of this my arrangement would be as follows:-
In its normal condition as before intimated, the expanding band is forced forward
upon the cone c, by reason of the spring k, thereby jamming or forcing itself between
the cone c, and the interior of the base pillar a, thus preventing any extending or
contracting motion of the upper pillar b.
Upon taking hold however of the upper or extending pillar b, and pressing upon
the lever d, (which may be done by the same hand) the expanding band i, is
drawn off the cone c, when the said upper pillar b, may be extended or contracted
at pleasure. Upon letting go the lever d, however, the expanding band i, is
again forced upon the cone e, when the parts again become locked as before
described.
Instead of attaching the flexible band i, to the rod f, I may attach it to the
lower end of the tube 61, and further connect the cone c', to the lower end of the
rod f', as seen in Figs. 7 & 8.
Further, this expanding band of metal may be formed by a number of wires,
as shown in Figs. 9 & 10, or similar thereto. The wires 2, are bent at right
angles at their upper ends, and placed side by side into the groove m, formed in
the lower end of the tube b².
Both in Fig. 7, and in Fig. 9, it will be seen that the mode of action is
similar, and also in Figs. 1, 2, 3, 7, & 9, the mode of action is practically the
same, inasmuch as in each case, when the rod f, is raised by the spring k, the'
flexible band is expanded or jammed between the cone and the interior of
the lower standard.
By making the forcing action of the spring k, about sufficient only to support
the extension pillar b, lamp &c., the extension inay be effected without manipulating
the lever d, inasmuch as the upward lift of the central tube b, tends to pull the
cone c, from the expanding. band against the spring.
Having now particularly described and ascertained the nature of this my said
invention and in what manner the same is to be performed, I declare that what
I claim is
1st. The combination and arrangement of the cone c, with the expanding or
flexible band i, and such other parts necessary to constitute an extension standard,
constructed and operating, substantially as hereindescribed. and illustrated upon the
drawings in Figs. 1 to 6 inclusive, and for the purposes specified.

page_text: 2nd. The modified combination and arrangement of the cone c', with the external
flexible band, and such other ordinary parts necessary to constitute an extens on
standard, substantially as hereindescribed and illustrated upon the drawings in
Figs. 7 & 8.
3rd. Securing or locking the extension pillar 6, in any given position, by means
of a number of loose wires acting upon a cone c, substantially as hereindescribed
and illustrated in Figs. 9 & 10.
4th. The general combination and arrangement of parts constituting this my
improved method of securing or locking a telescopic tubular pillar within its standard,
substantially as hereindescribed and illustrated upon the drawings.
Dated this 8th day of January 1889
CHARLES T. POWELL,
12, Cherry Street, Birmingham,
Applicant's Agent.