Improvements in Supports chiefly designed for Electric Incandescent Lamps.
Year: 1898

page_text: Date of Application, 1st Feb., 1898-Accepted, 2nd Apr., 1898
COMPLETE SPECIFICATION.
Improvements in Supports chiefly designed for Electric
Incandescent Lamps.
I, LEONARD WELDON, of No. 47, Division Street, in the City of Amsterdam, County
of Montgomery, and State of New York, United States of America, 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:
My invention relates to adjustable supports for incandescent lamps, and other
light devices, and the object is to provide a simple and inexpensive support that may
be easily and quickly adjusted universally.
My invention consists in certain combinations of parts hereinafter described and
specifically set forth in the claims.
In Sheet 1 of the drawings, Figure 1 is a side elevation of my improved adjustable
support fixed to a side wall, Figure 2 is an enlarged front view of the same taken on
line xx of Figure 1, and Figure 3 is a sectional view taken on line y, y, of
Figure 2.
Referring specifically to the drawings of this sheet, A is the bracket having the
hemispherical cavity, a, in its front face with an outwardly flanged edge, b, and a
screw, c, to enter the wall. Several screws or nails may be substituted for the single
integral screw if desired.
A pair of concentric rings B and C are secured loosely, by means of screws passing
through four projections, d, d, d, d, on the rings, to the flange so that they will turn
easily thereon in a plane coincident with that of the flange.
On diametrically opposite sides of the ring, B, are two inwardly extending
projections, D, D, with cavities or recesses in their ends to receive pintles, e, e, of a
nut or bar, E, extending across between the ends of the projections D, D. In order
to prevent the pintles from coming out of the cavities, angular rivets, f, f, are
secured in the projections, D, D, so that their ends will bear upon the pintles e, e.
A tube, F, having one end contracted and threaded passes at right angles through
the nut, E, and is adapted to bear with its end on the wall of the cavity to hold it
rigidly in place in any position. The position of the tube, F, may be changed and
extended in any direction from the bracket by simply slightly unscrewing the tube
in the nut, E, to remove its end from the wall of the cavity, then moving it to the
position desired and then turning the tube to set its end against the said wall as
shown in Figure 3 Sheet 1.
The adjustable arm formed by the tube, F, is extended in length by a small rod, G,
sliding within it. It will be obvious that the rod, G, may slide along one side of the
tube if desired. A set screw, g, holds the rod, G, rigidly within the tube. When
the support is used for an incandescent lamp, H, the same is mounted on the end of
the rod, G, as shown in Figure 1. A flexible conducting cord, h, extends from the.
lamp through eyes in small brackets, i, i, of insulating material secured to the
tube F.
Sheet 2 shows another form of my invention.

page_text: In Sheet 2 of the drawings hereto annexed, Figure 1 is a side elevation of
another adjustable support fixed to a side wall, Figure 2 is a view of the slotted side
of the tube of the bracket, Figures 3 and 4 are enlarged side elevations of the
universal joint of the said bracket, Figures 5 and 6 are side and sectional views
respectively of a modified form of universal joint that may be used in the bracket,
and Figure 7 is another modification.
Referring specifically to the drawings of this sheet, A is the bracket having the
curved bearing surface B. This bearing surface, as clearly shown, may be spherical
or hemispherical, and it is preferably formed convex. I preferably mount the curved
or spherical portion on the spindle rigidly and form it integral with the spindle, as
shown in the drawings.
When the bearing is hemispherical, as shown in Figures 1, 3 and 4 Sheet 2, I
mount a ring, C, on the spindle, a, close to the flat side of the hemispherical part.
Projections, c, c, radiate from diametrically opposite sides of the ring, upon the ends
of which are fulcrumed a curved yoke, D, which extends around the said curved
bearing surface. The yoke, D, is provided in its center with a threaded aperture, the
axis of which radiates from the curved surface, whatever the position of the ring, C,
and yoke D.
The outer tube, D¹, of the extensible part of the support is provided with a
threaded end which enters the threaded aperture in the support, and may be turned
to bear upon the curved or convex bearing surface to hold the extensible part, or
tubes, in any suitable position.
When the tube, D¹, is slightly unscrewed or does not bear upon the curved surface,
said tube together with the yoke, D, may be turned in any direction from the bracket,
for then the parts are loose. When the tube is turned to extend in the desired
direction, by simply turning the tube, D¹, on its axis, or screwing it into the
yoke, D, its end will be forced against the curved bearing surface of the bracket, the
ring, C, will then be drawn toward the flat surface, and all the movable parts will be
held firmly and rigidly in place.
The tube, D¹, is slotted longitudinally on one side to permit a small yoke, H, to
be secured by a screw, d, to the inner tube, E, and to slide on the outer tube when
the inner tube is moved in or out. The slide or yoke, D, is provided with a curved
spring, d, which bears with its ends upon the tube, D¹, and is adjusted by means of
a screw, e, passing through the yoke and bearing in a cavity in the center of the
spring. The inner tube, E, has its inner end preferably bent to pass through the slot
in the outer tube so that there will be no wear upon the flexible conducting
cord, F, passing through the tube upon the side walls of the slot when the inner
tube is moved.
Figure 1 shows an ordinary incandescent lamp G and its socket on the free
end of the inner tube E. The projections, f, serve as a handle or means for
operating the inner tube, or rotate the outer tube, and in fact as a means for
operating the device generally, as will be obvious.
When a gas-burner is substituted for the incandescent lamp, a flexible rubber
tube is connected to the inner end of the tube, E, to carry the gas to the
burner.
In Figures 5 and 6 the curved bearing, B, is spherical, or at least the part
having the curved bearing is spherical, and is provided with an annual groove, b,
for the ring, C, which in this structure is enlarged.
In Figure 7 the sphere or ball is not grooved and the ring is beveled and
mounted on the surface of the sphere. In this structure the yoke is secured to
the ring by a pair of screws, g, g, to permit the placing of the ring upon the
ball.
Sheet 3 of the drawings shows other forms of my invention.
In Sheet 3 of the drawings hereto annexed, Figure 1 is a side elevation of
another support, Figure 2 is a top plan view of a portion of the same with the
slotted side of the tube uppermost, Figure 3 is an enlarged sectional view of that
portion of the bracket nearest the wall, Figure 4 shows the adjustable tension
.

page_text: device for the inner tube, and Figures 5, 6 and 7 are different views of a
modification.
Referring specifically to the drawings of this sheet, A is the bracket having
the spindle, a, projecting from its front side in line with a screw, a¹, which
enters the wall. Several screws or nails may be substituted for the single integral
screw, if desired.
B is a portion or segment of a disk. About two-thirds of the disk is employed-
the incomplete or flattened side being turned toward the bracket and provided with
an aperture extending at right angles to the axis of the disk to receive the spindle
of the bracket. The central portion of the disk is removed or open to permit two
collars or rings to be mounted upon the spindle. One of said collars, b, is provided
with projections, b¹, 61, extending from diametrically opposite sides, upon which the
yoke, C, is fulcrumed, the other collar, c, is rigidly secured to the spindle, a, by
means of a pin, c¹, and serves as a bearing for the other collar when the same is
drawn toward the periphery of the disk as hereinafter explained.
The yoke, C, extends from the projections, 61, 61, on both sides of the disk and
beyond its periphery where it is provided with a threaded aperture, the axis of which
radiates from the periphery of the disk, and through which the outer tube, D, of the
extensible part of the support extends.
When the tube is slightly unscrewed or does not bear upon the periphery of the
disk, said tube, together with the yoke, C, may be turned in any direction from the
bracket, for then all the parts are loose. When the tube is turned or moved to extend
in the desired direction, by simply turning the tube, D, on its axis or screwing it
into the yoke, C, its end will be forced against the periphery of the disk, the
collar, b, will be drawn toward the collar, c, and all the movable parts will be held
rigidly in place.
Instead of having the end of the tube which is shown solid bear directly upon the
disk, I preferably provide a separable bearing, D¹, having a recess for the end of the
tube and a concave bearing for the periphery of the disk, so that the device will
work easily.
When it is desired to raise or lower the tube, D, the disk, C, lies in a vertical
plane, but when the tube is to be moved to one side or the other, the disk lies in a
horizontal plane or is inclined between these positions as desired. The tube, D, is
slotted longitudinally on one side to permit a small yoke, H, to be secured by a
screw d to the inner tube, E, and to slide on the outer tube when the inner tube
is moved in or out. The slide or yoke, H, is provided with a curved spring, d¹, which
bears with its ends upon the tube, D, and is adjusted by means of a screw, e, passing
through the yoke and bearing in a cavity in the center of the spring. The inner
tube, E, has its inner end preferably bent to pass through the slot in the outer tube
so that there will be no wear upon the flexible conducting cord, F, passing through
the tube upon the side walls of the slot when the inner tube is moved.
Referring to Figures 5, 6 and 7 Sheet 3 A is the bracket adapted to be secured to
the wall and having a projection, A¹, with a large spherical socket in its end to receive
the ball B. It will be obvious that the ball, though shown solid, may be made hollow
or may be an incomplete sphere, in order to decrease its weight, without departing
from my invention.
The ring, C, on the edge of the socket is beveled to fit closely to, or conform to
the curvature of the ball so that it may be turned easily in the socket without being
removed. Said ring is secured to the edge of the projection by a pair of screws or
rivets, b, b, passing through lugs, b¹, b¹.
A threaded aperture extends diametrically through the ball, B, through which the
outer tube, D, of the extensible part of the support passes. Said tube may be solid
on the threaded end passing through the ball. When the tube is slightly unscrewed,
so that it does not bear upon the wall of the spherical cavity or socket, said tube and
ball may be turned in any direction from the bracket. When the tube is turned or
moved to extend in the desired direction from the wall, it may be fixed in this position

page_text: by simply turning it into the ball' until its end impinges upon the spherical wall
of the socket.
When a gas-burner is mounted on the end of the tube, E, a flexible rubber pipe is
connected with the end of the tube E.
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:-
1-In an adjustable support, the combination of a bracket having a hemispherical
cavity, a ring swiveled on the outer edge of the bracket, a part extending between
and journaled in diametrically opposite sides of the said ring, and a rod threaded on
one end and extending through said part and adapted to bear upon the wall of the
said cavity, substantially as described and shown.
2-In an adjustable support, the combination of a bracket having a hemispherical
cavity, a ring swiveled on the outer edge of the bracket, a part extending between
and journaled in diametrically opposite sides of said ring, a rod threaded on one end
and extending through said part and adapted to bear upon the wall of the said
cavity, and a second rod to slide on the first mentioned rod, as set forth.
3 In an adjustable support, the combination of a bracket for attachment to a
wall, having a hemispherical cavity in its front side, a ring swiveled on the outer
edge of the circular edge of the bracket, a part extending between and journaled in
diametrically opposite sides of the said ring, a tube threaded on one end and extending
through the center of said part and adapted to bear upon the wall of the said cavity,
and a rod to slide in said tube, substantially as described and shown.
4-In an adjustable support, the combination of a bracket having a hemispherical
cavity and an outwardly extending circular flange on its edge, rings on opposite sides
of the flange secured together and adapted to rotate thereon, inwardly extending
projections on one of the rings containing recesses, a bar with pintles on its ends
extending diametrically across the said cavity with its pintles in the recesses, and a
rod threaded on one end and extending through said bar and adapted to bear upon
the wall of the said cavity, as set forth.
5-In an adjustable support, the combination of a bracket having a hemispherical
cavity and an outwardly extending circular flange on its edge, rings on opposite sides
of the flange secured together and adapted to rotate thereon, inwardly extending
projections on one of the rings containing recesses, a bar with pintles on its ends
extending diametrically across the said cavity with its pintles in the recesses, a tube
threaded on one end and extending through said bar and adapted to bear upon the
wall of the said cavity, and a rod to slide in said tube having an incandescent lamp
secured to its end, as set forth.
6-In an adjustable support, the combination of a bracket adapted to be secured
to a wall and provided with a curved bearing surface, a yoke mounted to turn on
said bracket universally and provided with a threaded aperture, and a rod having a
threaded end passing through said aperture and adapted to bear upon the curved
bearing surface of the bracket to hold the yoke from turning, as set forth.
7-In an adjustable support, the combination of a bracket adapted to be secured to
a wall and provided with a convex bearing surface, a yoke swiveled on said bracket
to turn universally and provided with a threaded aperture, and a rod having a
threaded end passing through said aperture and adapted to bear upon the curved
bearing surface of the bracket to hold the yoke from turning, as set forth.
8-In an adjustable support, the combination of a bracket adapted to be secured to
a wall and provided with a curved bearing surface, a yoke mounted to turn on said
bracket and provided with a threaded aperture, a tube having a threaded end passing
through the said aperture and adapted to bear upon the curved bearing surface of the
bracket, said tube being slotted longitudinally, a tube within the outer tube connected
to the latter through the slot, and a device carried on the outer end of the inner tube,
as set forth.
9-In an adjustable support, the combination of a bracket adapted to be secured to

page_text: a wall and provided with a spherical bearing surface, a yoke mounted to turn on
said bracket and provided with a threaded aperture, a tube having a threaded end
passing through the said aperture and adapted to bear upon the curved bearing
surface of the bracket, said tube being slotted longitudinally, a tube within the outer
tube connected to the latter through the slot, and a device carried on the outer end
of the inner tube, as set forth.
10-In an adjustable support, the combination of a bracket adapted to be secured
to a wall and provided with a curved bearing surface, a yoke mounted to turn on said
bracket and provided with a threaded aperture, a tube having a threaded end passing
through the said aperture and adapted to bear upon the curved bearing surface of
the bracket, said tube being slotted longitudinally, a tube within the outer tube
connected to the latter through the slot, a conducting cord passing through the tubes,
a tension device between the tubes, a handle, and an incandescent lamp carried on
the end of the inner tube, as set forth.
11 In an adjustable support, the combination with a bracket adapted to be secured
to a wall and having a spindle with an enlarged hemispherical end, a ring mounted
to turn on said spindle and having projections on diametrically opposite sides, a
curved yoke fulcrumed on) said projections and having a threaded aperture in its
center, and a tube having a threaded end passing through the aperture and adapted
to bear on the said hemispherical end of the spindle, as set forth.
12-In an adjustable support, the combination with a bracket adapted to be secured
to a wall and having a spindle with an enlarged hemispherical end, a ring mounted
to turn on said spindle and having projections on diametrically opposite sides, a
curved yoke fulcruined on said projections and having a threaded aperture in its
center, and a tube having a threaded end passing through the aperture and adapted
to bear on the said hemispherical end of the spindle, said tube being slotted
longitudinally, a tube within the outer tube connected to the latter through the slot,
and a device carried on the outer end of the inner tube, as set forth.
13 In an adjustable support, the combination with a bracket having a spindle, a
portion of a disk fulcrumed on the spindle at right angles to the axis of the disk, a
yoke swiveled on the said spindle to move universally, a tube having a threaded end
passing through the free end of the yoke, and a bearing on the end of the tube to
engage the periphery of the disk, as set forth.
14 In an adjustable support, the combination with a bracket having a spindle
projecting from its front face, a segment of a disk fulcrumed diametrically on the
spindle, a yoke swiveled on the said spindle to move universally, a tube having a
threaded end passing through the free end of the yoke, and a bearing piece between
the end of the tube and the periphery of the disk, substantially as described and
shown.
15 In an adjustable support, the combination with a bracket having a spindle
projecting from its front face, a segment of a disk fulcrumed diametrically on the
spindle, said disk having an opening in its center, a collar in the opening secured to
the spindle, a second collar in the opening mounted to turn on the spindle, said collar
having projections on diametrically opposite sides, a yoke fulcrumed on said projections
and extending beyond the periphery of the disk, a tube having a threaded end
passing through the free end of the yoke, and a bearing piece between the
end of the tube and the periphery of the disk, substantially as described and
shown.
16-In an adjustable support, the combination with a bracket having a spindle, a
portion of a disk fulcrumed on the spindle at right angles to the axis of the disk,
a yoke swiveled on the said spindle to move universally, a tube having a threaded end
passing through the free end of the yoke, said tube being slotted longitudinally,
a tube within the outer tube connected to the latter through the slot, and a con-
ducting cord passing through the said slot and through the inner tube, substantially
as described and shown.
17 In an adjustable support, the combination with a bracket having a spindle,
a portion of a disk fulcrumed on the spindle at right angles to the axis of the disk,

page_text: a yoke swiveled on the said spindle to move universally, a tube having a threaded
end passing through the free end of the yoke, said tube being slotted longitudinally,
a tube within the outer tube connected to the latter through the slot, a conducting
cord passing through the tubes, a tension device between the tubes, a handle, and an
incandescent lamp carried on the end of the inner tube, as set forth.
18 In an adjustable support, the combination with a bracket provided with a
spherical socket, a ball within the socket having a threaded aperture extending
therethrough, and a threaded tube extending through the aperture and adapted to
bear upon the spherical surface of the socket, said tube being slotted longitudinally,
a tube within the outer tube connected to the latter through the slot and adapted
to slide therein, a friction device to slide on the exterior of the outer tube, and a
lamp carried on the end of the inner tube, as set forth.
19 In an adjustable support, the combination with a bracket adapted to be
secured to a wall, and having a projection containing a spherical socket in its end, a
ball within the socket having a threaded aperture therein, a threaded tube extending
through the ball, and adapted to bear upon the spherical surface, of the socket, a ring
secured to the edge of the socket and having an inner beveled edge to bear upon the
ball, said tube being slotted longitudinally, a tube to slide in the outer tube and
extend through the slot, a conducting cord passing through the tubes, an adjustable
tension device secured to the inner tube and movable on the exterior of the outer
tube and an incandescent lamp mounted on the end of the inner tube, substantially
as described and shown.
Dated this 18th day of January 1898.
LEONARD WELDON.
Haseltine, Lake & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.