Improvements in Adjustable Standards for Lamps, Music Stands, and for other purposes.
Year: 1890

page_text: Date of Application, 3rd Jan., 1890
Complete Specification Left, 3rd Oct., 1890-Accepted, 8th Nov., 1890
PROVISIONAL SPECIFICATION.
Improvements in Adjustable Standards for Lamps, Music Stands,
and for other purposes.
I, SAMUEL TIMINGS, of 23, Great Hampton Street, Birmingham, Warwickshire,
Brassfounder, do hereby declare the nature of this invention to be as follows:-
This invention consists of the herein described improvements in adjustable standards
for standard lamps, music or book stands, fire screens, and for other purposes where a
tube or rod carrying or supporting a lamp or other article is arranged to slide
telescopically within an outer tube to adjust and fix the lamp or other article at any
required height.
As an example I will describe my invention as applied to the adjustable standard of
a standard lamp.
In carrying out this invention I provide an outer stationary tube supported as usual
by a suitable base or otherwise and furnished with an inner tube or rod which projects
through a mount or ring at the top of the stationary tube and carries the lamp at its
upper end.
At the lower end of the sliding tube or rod I provide an india rubber or other roller
mounted upon a cross axis.which is carried by a forked or other piece which can slide
along the tube or rod or along an extension of the same. The said roller bears against
the inside of the stationary tube and the bearings of its axis are slotted horizontally so
as to allow the axis of the roller to be moved either nearer to or farther from the
inside of the stationary tube. A coiled or other spring acts upon the said sliding
piece and presses it upwardly against a stop. The lower part of the tube or rod or
an extension of the same is provided with an incline or inclines adjacent to the axis of
the said roller. When not otherwise supported the sliding tube or rod and the lamp
carried thereby are by their weight caused to move downwardly through a short space
when the incline or inclines will act upon the axis of the roller and force the roller
against the inside of the stationary tube and the friction set up between them will
support the weight of the movable or sliding tube or rod and the lamp. The pressure
of the inclines on the axis is regulated by an adjustable or other stop which when the
proper position has been obtained arrests the further motion of the incline or inclines
and is so adjusted that a slight extra pressure on the tube or rod will be sufficient to
move the tube or rod downwardly as may be required. When the sliding tube or rod
is raised the incline or inclines are drawn away from the axis of the said roller thereby
freeing the roller from the inside of the stationary tube so that it offers little or no
impediment to the raising of the sliding part and the lamp carried thereby.
As a certain amount of pressure is required to force the sliding tube or rod down-
wardly there is no fear of its falling accidentally as is the case with some other
adjustable standards at present in use.
Dated this 2nd day of January 1890.
COMPLETE SPECIFICATION.
Improvements in Adjustable Standards for Lamps, Music Stands,
and for other purposes.
I, SAMUEL TIMINGS, of 23, Great Hampton Street, Birmingham, Warwickshire,
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 consists of the herein described improvements in adjustable standards
for standard lamps, music and book stands, fire screens, and for other purposes where

page_text: Support alamp or other article is arranged to silde
telescopically within an outer tube to adjust and fix the lamp or other article at any
required height.
I will describe my invention by referring to the accompanying sheet of drawings on
which
Fig. 1 represents in sectional side elevation and in sectional plan part of an adjust-
able standard for a standard lamp or for other like purpose constructed according to
this invention ;
Fig. 2 is a sectional front elevation of the same.
In Figs. 1 and 2 the parts of the gripping mechanisin are represented in the
positions which they occupy when the inner tube is being pushed down or when the
gripping mechanism hereinafter described is sustaining the weight of the inner tube
and the parts carried thereby ;
Fig. 3 represents the same parts in the positions which they occupy when the inner
tube is being raised;
Fig. 4 represents separately the lower part of the inner tube and parts connected
thereto;
Fig. 5 represents in front and side elevation and in plan the sliding piece of the
same which carries the roller shewn separately by Fig. 6.
A is part of the usual outer stationary tube supported by a base or otherwise and B
is the usual inner tube or rod which projects through an ordinary mount or ring at
the top of the tube A and carries the lamp, music or book rest, screen or other
article at its upper end the height of which is required to be adjusted.
In carrying out this invention I provide at the lower end of the sliding tube or
rod B an india rubber or other roller C mounted upon a cross axis d which is carried
by a forked piece e which can slide along the tube or rod A or along an extension of
the same.
This roller c bears against the inside of the stationary tube A and the
bearings e¹ of its axis d are slotted horizontally so as to allow the axis d to move either
nearer to or farther from the inside of the stationary tube A. This sliding piece e is
preferably made of sheet metal bent into the form shewn (see Fig. 5) so as to bear
against the inside of the tube A and contain the roller c. The lower part of the
sliding tube or rod B has an extension f¹f provided with two inclines gg2 adjacent
to the axis of the roller c. This extension can conveniently be formed of two metal
strips ff rivetted to the tube or rod B as shewn and made of a size to fit in the
sliding piece e at each side of the roller c. A coiled or other spring acts between
the shoulders i of the extension f1f2 and a pin j fixed to the sliding piece e so as to
press the sliding piece e upwardly against the lower end a¹ of the tube or rod B which
thus acts as a stop.
The mechanism above described operates as follows:- -When not otherwise sup-
ported the sliding tube B and the lamp or other object carried thereby are by their
weight caused to move downwardly through a short space (see Figs. 1 and 2) when
the inclines g¹ g² will act upon the axis d of the roller c and force the roller against
the inside of the stationary tube A (the back pressure of the roller being taken by the
back of the slide e bearing against the inside of the tube A) and the friction set up will
support the weight of the moveable or sliding tube or rod B and the lamp or other
object carried thereby. The pressure of the inclines g₁ g² on the axis d is regulated
by the stop at which, when the proper position of the inclines g¹² relatively to the
axis d so as to give the required amount of pressure to sustain the weight has been
obtained, arrests the further motion of the inclines g¹ g² and is thus so adjusted that a
slight extra downward pressure on the tube or rod B will be sufficient to move it
downwardly to any position required. There is at all times a certain amount of
friction between the sliding piece e and its roller c and the tube A so that when the
tube B is raised (see Fig. 3) the inclines g¹g will be eased away from the axis d
so that the pressure of the roller c on the inside of the tube A will be greatly lossened
so as to offer little or no impediment to the raising of the sliding tube B of the lamp
or other object carried thereby.
As a certain amount of pressure is required to force the sliding tube or rod

page_text: downwardly there is no fear of its falling accidentally as is the case with some other
adjustable standards at present in use.
It will be evident that the mechanism above described is similarly applicable to
cases where the outer tube A is made to slide over the inner tube or rod B which is
then stationary. In conclusion I wish it to be understood that my invention is not
limited to the precise details hereinbefore described and illustrated as the same may be
varied without departing from the nature of my invention.
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
In telescopically adjustable standards for lamps music and book stands fire screens
and for other like purposes and in combination with the inner sliding tube or rod and
the outer tube thereof, the herein described improved retaining and releasing
mechanism carried by the inner tube or rod and constructed arranged and operating
substantially as herein before described and illustrated by the accompanying drawing.
יהו.
11
1000
CHARLES BOSWORTH KETLEY,
Agent for the Applicant.