IMPROVE- MENTS IN AND APPLICABLE TO LANTERNS
Year: 1878

page_text: LETTERS PATENT to William James Shaw, of Hackney Road, in the County
of Middlesex, Lamp and Lantern Manufacturer, for the Invention of " IMPROVE-
MENTS IN AND APPLICABLE TO LANTERNS."
Sealed the 21st June 1878, and dated the 21st February 1878.
PROVISIONAL SPECIFICATION left by the said William James Shaw at the
Office of the Commissioners of Patents on the 21st February 1878.
6
WILLIAM JAMES SHAW, of Hackney Road, in the County of Middlesex, Lamp
and Lantern Manufacturer. IMPROVEMENTS IN AND APPLICABLE TO LANTERNS."
The object of this Invention is improvements in the construction of lanterns,
whereby they are rendered windproof without in any way affecting the proper
supply of air to the flame of the lamp or interfering with the flame.
The Invention has also for object the improvement of the ventilation of
lanterns.
In carrying out my Invention, for flat-sided lantern's, I employ the ordinary
corner or angle pieces with the ordinary beading; but I perforate the said corner
or angle pieces and also the beading, the perforations of the beading however not
being placed opposite to or corresponding with the perforations of the angle or
corner piece. By this means the said perforations allow a free entrance to the air,
but prevent any draught or current which would interfere with the flame.
Where the herein-before described beading is not employed I perforate the angle
or corner piece and solder inside the same a strip of perforated sheet metal, whereby
nearly the same effect is produced as that herein-before described.
For lanterns with curved surfaces, or where the improvements are not applied to
the corners, I employ pieces of beading perforated as herein-before described, and
place such beading over a series of holes perforated in the sides of the lantern.
To improve the ventilation of the top part of lanterns I employ a perforated
cone placed immediately over the ordinary aperture in the centre of the top of the
lantern, such perforated cone being protected by any suitable known arrangement.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William James -Shaw in the Great Seal Patent Office on the 20th
August 1878.
WILLIAM JAMES SHAW, of Hackney Road, in the County of Middlesex, Lamp
and Lantern Manufacturer. "IMPROVEMENTS IN AND APPLICABLE TO LANTERNS."
The object of this Invention is improvements in the construction of lanterns,
whereby they are rendered windproof without in any way affecting the proper
supply of air to the flame of the lamp or interfering with the flame.
The Invention has also for object the improvement of the ventilation of
lanterns.
In carrying out my Invention, for flat-sided lanterns I employ the ordinary
corner or angle pieces with the ordinary beading; but I perforate the said corner
or angle pieces and also the beading, the perforations of the beading however not
being placed opposite to or corresponding with the perforations of the angle or
corner piece. By this means the said perforations allow a free entrance to the air,
but prevent any draught or current which would interfere with the flame.
Where the herein-before described beading is not employed I perforate the angle
or corner piece, and solder inside the same a strip of perforated sheet metal, whereby
nearly the same effect is produced as that herein-before described.
For lanterns with curved surfaces, or where the improvements are not applied to
the corners, I employ pieces of beading perforated as herein-before described, and
place such beading over a series of holes perforated in the sides of the lantern.
To improve the ventilation of the top part of lanterns I employ a perforated cone
placed immediately over the ordinary aperture in the centre of the top of the
lantern, such perforated cone being protected by any suitable known arrangement.
But to make my Invention better understood, I will proceed to describe the same
by reference to the accompanying Drawing.
Figure 1 is a front elevation, Figure 2 a plan, and Figure 3 a back or inside
view of a corner or angle piece, with the ordinary beading for flat-sided lanterns
with my improvements applied thereto; Figure 4 is a section of same on line A, B,
Figure 1; the said improvements consisting in perforating the said corner or angle
piece A with holes a, a, a, at suitable distances apart, the beading B being also
perforated at b, b, b, the perforations b however not being opposite to or corre-
sponding with the perforations a, a, of the angle piece A.
Or instead of perforating the beading B, as herein-before described and shewn in
Figures 1, 2, 3, and 4, I may leave the top and bottom ends C, D, of the beading
open, as shewn in section at Figure 5; in this case I preferably employ a larger
number of perforations a, a, in the angle piece A, as shewn in elevation at Figure 6.
Figure 7 is a front view of this arrangement, Figure 5 being a section on line C, D,
of Figure 7, and Figure 8 a section on line E, F, of same.
When the beading B is not employed I perforate the angle or corner piece A,
and solder inside the same a strip of perforated sheet metal E, as shewn at Figures
9 and 10; or this perforated strip may be employed in combination with an
ordinary corner piece, as shewn in Figure 11, which is a section of a lantern with
this arrangement applied.
Figure 12 is an inside view of an angle or corner piece A, with a bead or tube B
placed within the angle of the corner piece, the said tube or bead B being open at
the top and bottom and perforated on its inner surface at c, c, c; Figure 13 is a
section on line G, H, of Figure 12, and Figure 14 is a section on line I, J, of
same.
A similarly perforated bead may also be employed, soldered on the sides of the
interior of the lantern; in all cases where this inner beading is employed holes
must be placed either in the sides immediately underneath the beading, or at top
and bottom of the lantern, to communicate with the external air.

page_text: By these improvements it will be understood that while a free entrance of the
air is allowed to the lantern any draught or current which would interfere with
the flame is prevented, thus rendering lanterns constructed according to my
Invention windproof.
To improve the ventilation of the top part of lanterns I employ (instead of the
ordinary cone) a perforated cone, as shown in Figure 11, such perforated cone being
protected by any suitable known arrangement.
Having thus described my said Invention, and the best means with which I am
acquainted for carrying the same into effect, I wish it to be understood that what
I claim is, the improvements in and applicable to lanterns, as herein-before
described.
In witness whereof, I, the said William James Shaw, have hereto set my
hand and seal, this Nineteenth day of August, in the year of our Lord One
thousand eight hundred and seventy-eight.
Witness,
G. F. REDFERN,
Patent Agent,
4, South St.,
Finsbury.
WILLIAM JAMES SHAW. (L.B.)