IMPROVE- MENTS IN HOLDERS OR GALLERIES FOR SUPPORTING GLOBES OR SHADES FOR GAS OR OTHER LIGHTS
Year: 1879

page_text: LETTERS PATENT to Robert William Page, of Hammersmith, in the County
of Middlesex, Engineer, and James Neville Sperryn, of Loughborough Road,
Brixton, in the County of Surrey, Gentleman, for the Invention of "IMPROVE-
MENTS IN HOLDERS OR GALLERIES FOR SUPPORTING GLOBES OR SHADES FOR
GAS OR OTHER LIGHTS."
Sealed the 6th June 1879, and dated the 11th March 1879.
PROVISIONAL SPECIFICATION left by the said Robert William Page and
James Neville Sperryn at the Office of the Commissioners of Patents on the
11th March 1879.
ROBERT WILLIAM PAGE, of Hammersmith, in the County of Middlesex, Engineer,
and JAMES NEVILle Sperryn, of Loughborough Road, Brixton, in the County of
Surrey, Gentleman. "IMPROVEMENTS IN HOLDERS OR GALLERIES FOR SUPPORTING
GLOBES OR SHADES FOR GAS OR OTHER LIGHTS."
Our Invention relates to improvements in the construction of that class of holders
or "galleries" for supporting globes and shades of gas or other lights, in which the
arms or claws forming the holders are caused to expand and contract to suit
different sized globes or shades, and so enable the latter to be placed and secured
thereon.
.
Our Invention has for its object to effect this. adjustment of the holders or
"galleries" by various neat and compact devices, concealed as much as possible
from view, and consists,-
Firstly. In forming the inner ends of the radial arms or claws constituting the
holders of a curved pendant shape, having curved slots working over hinge pins
carried by lugs fixed round the central tube of the burner. On the inner edges of
these curved pendant portions of the arms or claws are toothed racks geared into
by a screw or worm, or by racks formed or fitted round a sleeve or bush revolving
or reciprocating vertically on the central tube of the burner, in such a manner that
upon operating the said screw or racks so as to lower the curved pendant portions

page_text: of the arms or claws in their slots the claws or holders are drawn inwards by a
combined radial and vertical movement. By reversing the movement of the curved
pendant portions the arms or claws are caused to diverge. The extremities of the
arms or claws can be made to hold the globe or shade tightly, either by drawing
the arms or claws inwards or diverging them outwards, this being simply a matter
of detail in shaping the extremities of the arms or claws, and would be varied
according to the sizes and shapes of the various globes and shades.
Secondly. In hinging the inner ends of the arms or claws to lugs carried by the
central tube of the burner, and forming the arms or claws thereat with down-
wardly projecting ears or short arms. A sleeve or bush formed with a conical
upper end is fitted round the central tube of the burner and caused to reciprocate
vertically thereon, either by a screw motion or otherwise, so that when rising, its
conical upper end impinges against the projecting cars of the arms or claws, and
driving them away causes the outer or hooked ends of the arms or claws to close on
to the edge or flange of the globe or shade, whilst on lowering the sleeve or bush
its conical end leaves the projecting ears of the arms or claws, which in consequence
separate at their outer ends and release the globe or shade.
Thirdly. In forming the inner hinged ends of the arms or claws with ears or
catches, which are caught by a collar on the upper end of the sleeve or bush, whilst
reciprocating on the central tube.
During the descent of the sleeve or bush the ears or catches are drawn down-
wards by the collar, and the arms or claws thereby drawn inwards, whilst during
the ascent of the sleeve or bush the arms or claws diverge. The extremities of the
arms or claws can be made to hold the globe or shade tightly, as before described
under the first part of our Invention.
Fourthly. In forming the hinged ends of the arms or claws with upper and lower
cam shaped ears or projections, the edges of which are in contact with double
inclined or flat V shaped.tongue pieces let into the circumference of the sleeve or.
bush reciprocating vertically on the central tube of the burner. On the rising of
the sleeve or bush the lower cam shaped ears of the arms or claws are forced out-
wards by the lower inclines of the V tongues, and the outer ends of the arms thereby
drawn inwards, and on the falling of the sleeve or bush the upper inclines of the
V tongues force the upper cam shaped ears of the arms or claws to diverge. The
extremities of the arms or claws can be made to hold the globe or shade tightly, as
before described under the first part of our Invention.
The sleeve or bush may be kept up to its work against the cam shaped ears by a
spiral spring or other device.
.
Fifthly. In carrying the arms or claws by a series of links arranged and jointed
together on the "lazy-tong " principle. The inner ends of the upper series of links
being hinged to lugs carried by the central tube of the burner and the inner ends
of the lower series to a collar reciprocated vertically on a revolving sleeve or bush
by means of a screw or worm formed on the sleeve or bush, and taken into by a pin
on the inside of the sliding collar, or otherwise, as found inost suitable. On the
lowering of the sliding collar the "lazy tong" links with the arms or claws are
drawn together inwards, whilst on raising the sliding collar the arms or claws are.
caused to diverge outwards. The extremities of the arms or claws can be made to
hold the globe or shade tightly, as before described under the first part of our In-
vention.
Sixthly. In jointing the outer arms or claws to inner arms hinged to lugs carried
by the central tube of the burner, and their inner ends geared into by a screw or
racks formed on a sleeve or bush reciprocating vertically on the central tube of the
burner. By means of toothed pinions arranged between the hinges of the inner
and outer arms, and gearing into each other the whole is operated in such a manner
that on the lowering of the sleeve or bush the inner and outer arms or claws are
folded together, so that the arms or claws are drawn inwards horizontally, whilst
on the rising of the sleeve or bush the arms or claws are caused to diverge outwards,

page_text: their extremities being made to hold the globe or shade tightly, as before described
under the first part of our Invention.
Seventhly. In hinging the arms or claws to lugs cast on a sleeve or bush reci-
procating vertically on the central tube of the burner, the hinged ends of the arms
or claws being extended behind their pivots or fulcrums by curved ears terminating
in notches, which take over a circular toothed projection formed at the central por-
tion of a vertical curved depression round the central tube of the burner. The
whole is actuated by a spiral or other spring placed round the central tube of the
burner between the lower end of the sleeve or bush, and the upper end of a nut or
collar working by screw motion on the central tube. By the action of the spiral
spring the arms or claws are normally closed or forced together, but on opening
one of the arms or claws the notch on its hinged end acting on the circular pro-
jection of the central tube will force the sleeve or bush downwards against the
spiral spring, and in so doing cause the remaining arms or claws to open or diverge
outwards simultaneously. The globe or shade being then placed in position on the
holder and the arms or claws released the spiral spring will cause the arms or claws
to hold the globe or shade, where they will be finally fixed by screwing the lower
nut or collar upwards tightly against the lower end of the sleeve or bush. When
it is required to release the globe or shade the nut or collar will be screwed down
and the globe or shade released.
Eighthly. In forming the holder or "gallery" with central horizontal arms fixed
round the central tube of the burner, and bent downwards at their outer extremi-
ties.
Through holes in the latter slide horizontally immediately beneath and
supported by the fixed arms, the arms or claws of the holders, which are formed
with downwardly projecting ears at their inner ends. Screwed stems or spindles
work through these ears, and pass through the surrounding side of a circular ring
or casing carried underneath the central portion of the fixed arms. Toothed
pinions on the inner enclosed ends of the screwed stems or spindles are geared into
by the toothed projecting edge (or otherwise) of a thumb sleeve or bush fitted to
and turning round inside the circular ring or casing in such a manner that upon
turning the sleeve or bush in one direction the screwed stems or spindles are caused
to rotate and screw the sliding arms or claws inwards, and by turning the sleeve or
bush in the reverse direction the sliding arins or claws are caused to diverge out-
wards, their outer extremities being made to hold the globe or shade tightly, as
before described under the first part of our Invention.
Ninethly. In forming the holder or "gallery" with central fixed arms, having
bent outer ends, as in the last case, and slotted longitudinally for the reception
from below of pins or studs projecting from the inner ends of the lower horizontally
sliding arms or claws, through which ends they pass, and again take into curved
grooves formed on the upper faces of wings or ears projecting eccentrically from
the periphery of a ring or collar placed round the central tube of the burner, and
there screwed on to the upper end of a thumb sleeve or bush revolving round the
central tube in such a manner that upon turning it in one direction the ring or
collar turns with it, and by the action of its eccentric grooves on the pins or studs
of the sliding arms or claws draws the latter inwards. By turning the sleeve or
bush in the opposite direction, the eccentric grooves cause the arms or claws to
diverge outwards, the extremities of the latter being made to hold the globe or
shade tightly, as before described under the first part of our Invention.
When desired to fix the sliding arms or claws after being adjusted to the globe or'
shade the sleeve or bush is turned further in the same direction, and the ring or collar
not being able to follow its movement (on account of the claws being home against
the rim or flange of the globe or shade) the screwed upper end of the sleeve or bush
screws or forces the ring or collar upwards until jammed or tightened against the
under side of the central portions of the fixed arms.
Tenthly. In reducing the width of the fixed arms, as last described, by dispensing
with the slots therein, and effecting the adjustment of the sliding arins or claws by

page_text: a single screwed stem or spindle working through the bent end of one of the fixed
arms, and confined but revolving freely at its inner end in a lug or ear projecting
downwards from the corresponding sliding arm or claw. The curved grooves
eccentric with the central ring or collar are similar to those in the last case.
On turning the screwed stem or spindle in either direction its sliding arm or
claw is moved inwards or outwards, this movement being communicated simul-
taneously to the sliding arms or claws by means of the curved grooves of the
central ring or collar, and the globe or shade is thereby secured or released at
pleasure.
A spiral or coiled spring may be used in combination with the two last parts of
our Invention to keep the central ring or collar with its eccentric grooves in a
normal position, either with or without the aid of a sleeve or bush or other
tightening device.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Robert William Page and James Neville Sperryn in the Great Seal
Patent Office on the 11th September 1879.
ROBERT WILLIAM PAGE, of Hammersmith, in the County of Middlesex, Engineer,
and JAMES NEVILLE SPERRYN, of Loughborough Road, Brixton, in the County of
Surrey, Gentleman. "IMPROVEMENTS IN HOLDERS OR "GALLERIES" FOR SUPPORTING
GLOBES OR SHADES FOR GAS OR OTHER LIGHTS."
Our Invention relates to improvements in the construction of that class of holders
or "galleries" for supporting the globes and shades of gas or other lights in which
the arms or claws forming the holders are caused to expand and contract to suit
different sized globes and shades, and so enable the latter to be placed and secured
thereon.
ce
Our Invention has for its object to effect the adjustment of the holders or
galleries" by various neat and compact devices concealed as much as possible from
view, and consists, firstly, as shewn by Figure 1 on the accompanying Drawing,
in forming the inner ends of the radial arms or claws A constituting the holders of
a curved pendant shape, having curved slots a working over hinge pins b carried
by lugs c fixed round the central tube B of the burner. On the inner edges of
these curved pendant portions of the arms or claws A are toothed racks & geared
into by a screw or worm e, formed or fitted round a sleeve or bush C revolving on
the central tube B of the burner, in such a manner that upon turning it with its
screw or worm e in one direction the curved pendant portions of the arms or claws
A are lowered in their slots a, and the claws or holders A thereby drawn inwards
by a combined radial and vertical movement which causes their outer or hooked
extremities to close on to the edge or flange of the globe or shade. By turning
the sleeve or bush C in the opposite direction, reversing the movement of the
curved pendant portions, the arms or claws A are caused to diverge and their
hooked ends released from the globe or shade. In lieu of the sleeve or bush C with
its screw or worm e racks may be used for gearing into the racks d of the curved
pendant portions, or the arms or claws A may be lowered in the slots a by any
other suitable device. If desired the extremities of the arms or claws A may be
made to hold the globe or shade tightly by diverging the arms or claws A and
release it by drawing them inwards, this being simply a matter of detail in shaping
their extremities and would be varied according to the sizes and shapes of the
various globes and shades; secondly, as shewn by Figure 2, in hinging the inner'
ends of the radial arms or claws A¹ to lugs c¹ carried by the central tube B' of the'
burner, and forming the arms or claws A thereat with downwardly projecting ears'
or short arms f. A sleeve or bush D formed with a conical upper end is fitted round
the central tube B₁ of the burner, and being turned round by hand reciprocates
vertically thereon by the screw g which is formed on the inside of the sleeve or
bush D and works over a corresponding screw formed on the central tube B', the'
screw being entirely concealed from view during the rising of the sleeve or bush D
by the lower part of the latter, which extends downwards over the central tube B¹
for that purpose:
On the rising of the sleeve or bush D its conical upper end
impinges against the ears or short arms f, thereby forcing the arms or claws A'
inwards and tightening them on the globe or shade, whilst on the lowering of the
sleeve or bush D its conical end leaves the ears or short arms f, and the weight of
the arms or claws A¹ causes the latter to diverge or spread open, thereby releasing
the globe or shade; thirdly, as shewn by Figure 3, in forming the inner hinged
ends of the arms or claws A2 with ears or notches h which take on to the edge or
rim of a collar i formed on the upper end of the sleeve or bush E which is recipro-
cated vertically on the central tube B2 of the burner in a similar manner to the'
sleeve or bush D in Figure 2. During the rising of the sleeve or bush E the edge

page_text: or rim of its collar i acting upon the inclined upper sides of the notches / causes
the arms or claws A2 to diverge, whilst upon the lowering of the sleeve or bush E
the collar i acts upon the lower sides of the notches h, thereby forcing the arms or
claws A2 inwards. To check the latter movement stops j formed on the upper inner
ends of the arms or claws A² come in contact with the central tube B2 of the burner.
The extremities of the arms or claws A² may be caused to close on the edge or
flange of the globe or shade either by drawing the arms or claws A2 inwards or
diverging them outwards as desired, and as described under the first part of our
Invention; fourthly, as shewn by Figure 4, in forming the hinged ends of the
arms or claws As with upper and lower cam shaped ears or projections k, k¹,
respectively, the edges of which are in contact with double inclined or flat V shaped
tongue pieces let into the circumference of the sleeve or bush F reciprocating
vertically on the central tube B3 of the burner. On the rising of the sleeve or bush F
the lower cam shaped ears of the arms or claws A³ are forced outwards by the
lower inclines of the V tongues 7, and the outer ends of the arms thereby drawn
inwards, and on the falling of the sleeve or bush F, the upper inclines of the V
tongues free, the upper cam shaped ears k of the arms or claws A³ to diverge. The
edge or flange of the globe or shade may be gripped either by drawing the arms or
claws A³ inwards or diverging them as described under the first part of our Inven-
tion. The sleeve or bush F may be kept up to its work against the cam shaped
ears by a spiral spring my or other suitable device; fifthly, as shewn by Figure 5,
in carrying the arms or claws A' by a series of links 1, 2, arranged and jointed
together on the "lazy tong" principle, the inner ends of the upper series of links 1.
being binged to lugs u carried by the central tube B4 of the burner, and the inner
ends of the lower series of links 2 to a collar G reciprocated vertically on a revolving.
sleeve or bush H by means of a screw or worm o formed on the sleeve or bush H,
and taken into by a pin p on the inside of the sliding collar G, or otherwise, as
found most suitable. On the lowering of the sliding collar G the "lazy tong" links
1, 2, with the arms or claws A' are drawn together inwards, whilst on the rising
of the sliding collar G the "lazy tong" links 1, 2, are extended and the arms or
claws A caused to diverge. The globe or shade may be held or tightened either.
by drawing inwards the arms or claws A or diverging them as described under the
first part of our Invention; sixthly, as shewn by Figure 6, in jointing the outer
arms or claws A5 to inner arms I binged to lugs q carried by the central tube B' of
the burner, and their inner ends formed with toothed segments r geared into by a
screws formed on a sleeve or bush J reciprocating vertically on the central tube B
of the burner. By means of toothed pinions t, t, arranged between the hinges of
the inner and outer arms I and A5 respectively, and gearing into each other,
the whole is operated in such a manner that on the lowering of the sleeve or
bush J the inner and outer arms (or claws) I and A5 are folded together so that
the latter are drawn inwards horizontally, whilst on the rising of the sleeve or
bush J the arms or claws A³ are caused to diverge. The globe or shade may
be held or tightened either by drawing the arms or claws A³ inwards or
diverging them as described under the first part of our Invention. If preferred
in lieu of a revolving sleeve or bush J with its screw s racks or other
suitable device may be employed for operating the inner and outer arms I and A³;
seventhly, as shewn by Figure 7, in hinging the arms or claws A to lugs u cast
on a sleeve or bush K, reciprocating vertically on the central tube B of the burner,
the hinged ends of the arms or claws A" being extended behind their pivots or
fulcrums by curved ears v, terminating in notches v¹, which take over a circular 5
toothed projection w formed at the central portion of a vertical curved depression
round the central tube B6 of the burner. The whole is actuated by a spiral or
other spring y placed round the central tube B6, between the lower end of the sleeve
or bush K and the upper end of a nut or collar L working by screw motion on the
central tube B of the burner. By the action of the spiral spring y the arms or 5
claws A are normally closed or forced together, but on opening one of the arms or
claws As the notch v' on its hinged ears acting on the circular projection w of the

page_text: central tube B will force the sleeve or bush K downwards against the spiral
spring y, and in so doing cause the remaining arms or claws A to open or diverge
simultaneously. The globe or shade, being then placed in position on the holders,
and the arms or claws A released, the spiral spring y will cause them to hold the
globe or shade, when they are finally fixed by screwing the lower nut or collar L
upwards tightly against the lower end of the sleeve or bush K. When it is required
to release the globe or shade the nut or collar L is screwed down, and the arms or
claws A will then be free; eighthly, as shewn by Figure 8, in forming the holder
or "gallery" with central horizontal arms M fixed round the central tube B7 of the
burner, and bent downwards at their outer extremities through holes in the latter
slide horizontally immediately beneath, and supported by the fixed arms M, the
arms or claws A of the holder, which are formed with downwardly projecting ears Z
at their inner ends. Screwed stems or spindles N work through the ears Z, and
pass through the surrounding side of a circular ring or casing O carried underneath
the central portion of the fixed arms M. Toothed pinions P on the inner enclosed
ends of the screwed stems or spindles N are geared into by the toothed projecting
edge (or otherwise) of a thumb sleeve or bush Q, fitted to and turning round inside
the circular ring or casing O in such a manner that upon turning it in one direction
the screwed stems or spindles N are caused to rotate and screw the sliding arms or
claws A7 inwards, and by turning the sleeve or bush Qin the reverse direction the
sliding arms or claws A7 are caused to diverge. The globe or shade may be held
or tightened either by screwing the arms or claws A' inwards or outwards, as
described under the first part of our Invention; ninethly, as shewn by Figure 9,
in forming the holder or "gallery" with central fixed arms R, having bent outer
ends, as in the last case, and slotted horizontally for the reception from below of
pins or studs a projecting from the inner ends of the lower horizontally sliding
arms or claws A8, through which ends they pass and again take into curved grooves
b¹ formed on the upper faces of wings or ears c¹ projecting eccentrically from the
periphery of a ring or collar S placed round the central tube B8 of the burner, and
there screwed on to the upper end of a thumb sleeve or bush T, revolving round
the central tube B8 in such a manner that upon turning it in one direction the ring
or collar S turns with it, and by the action of its eccentric grooves 6¹ on the pins or
studs a' of the sliding arms or claws A8 draws the latter inwards. By turning the
sleeve or bush T in the opposite direction the eccentric grooves b' cause the arms
or claws A8 to diverge.
The globe or shade may be held or tightened either by drawing the arms or
claws As in wards, or diverging them, as described under the first part of our Inven-
tion. When desired to fix the sliding arms or claws A³, after being adjusted to the
globe or shade, the sleeve or bush T is turned farther in the same direction, and
the ring or collar S not being able to follow its movement (on account of the claws
As being home against the rim or flange of the globe or shade) the screwed upper
end of the sleeve or bush T screws or forces the ring or collar S upwards until
jammed or tightened against the underside of the central portion of the fixed arms R;
tenthly, as shewn by Figure 10, in reducing the width of the fixed arms R¹ by
dispensing with the slots, as described, in the fixed arms R in the last case, and
effecting the adjustment of the sliding arms or claws A³ by a single screwed stem
or spindle U working through the downwardly bent end of one of the fixed arms R',
and confined but revolving freely at its inner end in a lug or ear d' projecting
downwards from the corresponding sliding arm or claw A³.
The curved grooves e¹, eccentric with the central ring or collar V, are similar to '
the corresponding parts described under the nineth part of our Invention.
On turning the screwed stem or spindle U in one or the other direction its sliding
arm or claw A³ is moved inwards or outwards, this movement being communicated
simultaneously to the remaining sliding arms or claws A by means of the curved
grooves e¹ of the central ring or collar V. The globe or shade may be held or
tightened either by drawing the arms or claws A³ inwards, or diverging them as
described under the first part of our Invention.

page_text: Having now described and particularly ascertained the nature of our said Inven-
tion, and the manner in which the same is or may be used or carried into effect, we
would observe in conclusion that what we claim as our Invention is,―
In holders or "galleries" for supporting the globes or shades of gas or other
lights, drawing inwards or diverging the radial arms or claws constituting the
holders, by the various combinations and arrangements of apparatus, substantially
as and for the purpose herein before described and illustrated by Figures 1 to 10 on
the accompanying Drawing.
In witness whereof, we, the said Robert William Page and Jaimes Neville
Sperryn, have hereunto set our hands and seals, this Tenth day of September,
in the year of our Lord One thousand eight hundred and seventy nine.