Improvements in Appliances for use with Incandescence Lamps:
Year: 1891

page_text: Date of Application, 1st Sept., 1891
Complete Specification Left, 14th Jan., 1892-Accepted, 9th- Apr., 1892;
PROVISIONAL SPECIFICATION:
Improvements in Appliances for use with Incandescence Lamps:
I ARTHUR HEALD of Broad Street House in the City of London Gentleman
do hereby declare the nature of this invention to be as follows :—
The first part of my invention consists in an improved method of suspending
mantles for producing light by incandescence.
In my Patent for Improvements in appliances for use with gas lamps for producing
light by incandescence numbered 11495 and dated 23rd July 1890 I have described
a mode by which such mantles resting on a ring to which is attached a bridge are.
supported by means of a rod or stem rising from the centre of the burner.
My present invention consists in the application of this system to mantles which
do not rest on a ring but are suspended by means of a wire, filament, or cord
threaded through the top of the mantle and the manner of its application is as
follows:-
I form a bridge having two or more arms from the centre and made of clay,
porcelain, metal or other suitable material and to the ends of these arms I attach
portions of the wire, filament, or cord which is threaded through the top of the
mantle. In the centre of the bridge is a hole, pin, bar, or other suitable means for
fitting it on to the central stem rising from the burner, on which it is simply placed
when required for use.
If preferred a small plate, or a dome, or hood, either perforated or not may be
employed in place of the bridge and this could be made so as to conceal the top of
the mantle.
Or the bridge may be attached to a ring, the ends of the wire or cord being
fastened to the latter instead of to the bridge.
Or the so-called bridge may be shaped more or less like a cylinder, with or
without a flange, in which case the wire or filament at the top of the mantle
would he passed either through a small hole across its axis or round it in a
groove, or both. The lower end of the cylinder or support may be shaped like
a trumpet in order to facilitate the admission of the stem attached to the burner.
The second part of my invention consists in a novel mode of packing the mantles
and is as follows:-
I form a case or tube of paper or other suitable material slightly larger in
diameter and somewhat longer than the mantle and having a lid somewhat similar
to that of a pillbox with a small hole in the centre and, if required, a second small
hole by the side of it; the bridge or support with mantle attached is fastened to
this lid by means of a pin, cord, or wire passing through the holes in the bridge
and lid and made secure by a knot, bend, or boss. I prefer the mode of having
two holes in the lid, one end of the cord being passed through each and subsequently
tied to the other.
Another mode of securing the mantle to the lid is as follows:-I' form the
bridge or support to which the mantle is attached with a boss on the top or upper
end, having a small hole through it, or a groove in its circumference. A hole is
made in the lid slightly larger than this boss. The boss is passed through this hole
and secured in its position by a wire, cord, pin, clip, or collar, screw or plug.
In case no bridge or support should be employed and the mantle attached to the
central stem of the burner by direct contact with the cord; filament, or wire
threaded through it, such cord, filament or wire is formed with a loop which is
passed through the hole in the lid and secured as before.
The mantle thus attached to the lid is then carefully inserted in the tube or case
and the lid made fast

page_text: It is desirable to place a small piece of cotton wadding, or other soft material in
the interior of the lower part of the mantle as a further protection.
The tube or case may be made long enough to hold two mantles, in which case
there would be a lid at each end.
I have described a tube as being the best form for the purpose of protecting
the mantle, but the case may be rectangular, triangular, or of any other desired
shape.
1001
ARTHUR HEALD.
COMPLETE SPECIFICATION.
Improvements in Appliances for use with Incandescence Lamps.
I ARTHUR HEALD of Broad Street House, in the City of London, Gentleman
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:-
In the Specification of my Patent for Improvements in appliances for use with
gas lamps for producing light by incandescence numbered 11495 and dated 23rd July
1890, I have described a method whereby the mantles resting upon a ring having a
bridge adapted thereto are supported by means of a rod or stem disposed centrally
within the burner.
My present invention consists primarily of an improved method of supporting the
mantles whereby, instead of being suspended from a ring, as described in the
Specification above referred to, they are suspended by means of a wire, filament
cord or equivalent, threaded through the tops of said mantles, and secondly of an
improved means of securing the mantles in cases to ensure them against injury when
adapting them to the burners.
In order that my invention may be the better understood and carried into effect,
have appended the accompanying sheet of drawings in which
Figure 1 shows a mantle suspended from a dome shaped bridge, and
Figure 2 a similar view of a mantle suspended from a vertical bridge,
Figures 3 to 9 inclusive illustrate some types of the supporting bridges and
Figure 10 is a full sized view partly in section, showing methods for securing
mantles within a receptacle for transit.
In carrying out my invention I employ a bridge A, having preferably two radial
arms a Figure 3, and formed of clay, porcelain, metal or other suitable material.
The ends of said arms a are preferably grooved or recessed, or small holes may be
provided for the purpose of suspending the mantle therefrom. This is effected by
taking the ends of the wire, filament, cord or equivalent which has been threaded
through the end b, of the mantle B, and securing them within the grooves or
recesses in the armis a, or by passing such ends through the holes referred to, and
thus securing them; or, if preferred, a small plate c Figure 4, or dome or hood d,
Figure 1, perforated or otherwise as desired, may be employed and so devised as to
conceal the top of the mantle B. Furthermore the so-called bridge A may be
shaped more or less cylindrical or conical with or without a flange as shown in
Figures 5 to 8 inclusive, in which cases the wire, filament or the like at the top b of
the mantle B, would be passed either through a small hole across its axis, or around
it in a groove or recess e formed thereon (Figure 5) or both these means may be
employed for attaching the bridge A to the mantle B.
Instead of securing the mantle B direct to the bridge, I may interpose a ring
there-between, the mantle being attached to the ring, and the ring to the bridge A.
In or on the lower end of the bridge A is formed a hole, pin, bar or equivalent
means for supporting the said bridge and mantle upon the stem or rod disposed
centrally within the burner.
In the case of the adoption of a hole, I prefer it conical and spreading towards

page_text: the outer end into a trumpet end shape in order to facilitate the insertion of the
point of the stem therein, as also to lessen the risk, when passing the mantle over,
of damaging same.
At Figure 10 is shown a view, partly in section of a novel mode of packing the
mantles by means of which the mantle may be adapted to or removed from the
burner without being touched by the hand.
The device consists of a tube or receptacle C Figure 10 formed of paper, or
other suitable material having the necessary strength and rigidity, and of any
convenient shape in section, such for instance, circular, as shown in the drawing,
rectangular, hexagonal and the like, and of a length to contain either one or two of
the mantles B, the diameter of the receptacle C, being a little in excess of that of
the mantle. In the event of a tube being required for one mantle only, one end
thereof may be, if desired, permanently closed, but in a tube for containing two
mantles, both ends would be open. These open ends, are provided with lids or
covers of any suitable material, but, preferably, of thin metal, pressed or stamped
to the desired shape and size to fit accurately upon or in the ends f.
In the centre of the covers g, I form one or more holes for the reception of the
upper ends or bosses, of the bridges A, to which the mantles B, would be attached.
The boss, having been passed through the perforation in the cover g, is secured
thereto by threading through the hole i, a pin, cord, peg or equivalent, the cover
with the mantle suspended therefrom, is now raised, and the latter gently lowered
into the tube C. The cover g, may then be secured in any convenient manner, as
for instance by pasting paper over it or tying it by twine. Instead of passing the
boss h, through the lid or cover g, I may secure it thereto by fastening a wire, cord
or the like, in a groove or recess formed upou the boss, or thread it through the
hole then, passing the ends of said wire, cord or the like through the hole or
holes in the cover g, and tie, bend, twist or otherwise secure upon the outside
thereof.
By securing the mantles to the lid or cover g, of the containing case C, as above
set forth, the mantle may be removed and placed in position upon the rod or stem
without being touched by the hand, thus lessening the risk of injury to the texture
of the mantle. When in position the lid or cover g, may be released by removing
the cord, wire, pin, peg or equivalent, by which the mantle had been secured
thereto.
If the bridge to be employed is of cylindrical form having a cylindrical boss as
at Figures 5 and 6, I form a collar j, thereon in order to prevent the bridge A
from passing too far through the hole, in the cover g, as also to ensure a firm
attachment thereto. When a flat boss is used, as shown at Figures 7 and 8, no
flange is required, as the hole in the cover y, would be of a shape to receive that
form of boss.
>
At Figure 9 is represented a conical bridge made of sheet metal having a tag or
extension piece k formed at its apex, which, when passed through the hole in the lid
or cover g, may be bent over, as shown in dotted lines, thus effectually securing the
bridge A, and mantle B, to the cover 9, aforesaid.
In the event of it being thought desirable to dispense with the bridge A, and the
mantle secured to the central stem of the burner by direct attachment with the
cord, filament or wire threaded through it, such cord, filament or wire may be
formed with a loop, which is passed through the hole in the lid or cover
secured in any convenient manner.
and
Previous to introducing the mantle B, into the receptacle C, it is advisable to
insert within said mantle a plug, or piece of cotton wool or equivalent soft material
so as to retain its original shape and prevent the risk of fracture or other injury.
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.
First In gas lamps for obtaining light by incandescence, the employment

page_text: therewith and adaptation thereto of a bridge having a hole, pin, bar or equivalent
formed therein, or thereon, said bridge being devised to support the mantle upon a
rod or stem disposed centrally within the lamp burner, substantially as described
and illustrated.
Second-The suspending of the mantle from a bridge as herein described,
supported by a rod or stem disposed centrally within the burner of a gas lamp,
substantially as set forth.
Third: The adaptation to a bridge as herein described of a boss or elongation
substantially as, and for the purpose herein set forth and illustrated at Figure 10.,
Fourth-The securing of the upper end of mantles employed with incandescence
gas lamps to the lids or covers of a containing case or receptacle in which such
mantles are to be packed for storage or for conveyance, and by means of which lids
or covers said mantles may be removed from the case and adapted to the burner of
the lamp without being touched by the hand.
Dated this 14th day of January 1899
ARTHUR HEALD.