Improvements in the Construction of Gas Burners for Heating and Cooking Purposes.
Year: 1885

page_text: Improvements in the Construction of Gas Burners for Heating
and Cooking Purposes.
I JOHN JAMES ROYLE of 27 and 29 King Street West, Manchester in the
County of Lancaster, Mechanical Engineer, do hereby declare the nature of my
invention of "IMPROVEMENTS IN THE CONSTRUCTION OF GAS BURNERS FOR HEATING
AND COOKING PURPOSES to be as follows:-
"
I take a spiral of by preference iron or steel wire of either round, square or other
suitable cross-section and with sufficient space between the coils to form the orifices
for the issue of the gaseous mixture which is supplied by the ordinary jet-action
to the interior of the coil to produce the Bunsen flame.
I mount this coil horizontally by preference upon or inside a tubular casting or
other metallic framework or stand so that the gaseous mixture is only allowed to
have egress at the upper half or part of the coil. In this manner I construct
a cheap and efficient burner, capable of being easily kept clean; the coil of which
can be turned on its axis to present a fresh surface from time to time; which has
no tendency to fire back either in lighting or extinguishing the flame and which is
suitable for cooking or heating purposes.
Instead of a coil being employed as herein before described it will be obvious
that the same effect could be produced by a coil of wire or riband arranged in a
volute form after the manner of a clock spring and mounted upon a suitable casing
forming the mixing chamber.
JOHN G. WILSON,
Agent for Applicant.

page_text: and Cooking rurposes.
I JOHN JAMES ROYLE, of 27 & 29 King Street West, Manchester, in the County
of Lancaster do hereby declare the nature of my invention and in what manner
the same is to be performed, to be particularly described and ascertained in and by
the following statement:-
On the accompanying drawing Fig. 1. represents a side exterior view and Fig. 2.
a side sectional view of my improvements applied to a burner suitable for boiling
the water in my improved "steam dolly" the subject of Letters Patent No 11985
and dated 4th September 1884, and Fig. 3. illustrates the spiral coil separately.
In performing my invention I take a spiral a of by preference iron or steel wire
of either round square or other suitable cross section and with sufficient space left
between the coils to form the orifices for the issue of the gaseous mixture.
I mount this coil horizontally by preference upon or inside a tubular casting b
so that the gaseous mixture is only allowed to have egress at the upper half or
part of the coil.
This tubular casting b is supplied with the requisite gaseous mixture by the
ordinary jet action, the gas entering by the jet c and the air by the bottom
orifice d.
In this manner I construct a cheap and efficient burner capable of being easily
kept clean, the coil a of which can be turned on its axis to present a fresh surface
from time to time which when properly proportioned (not too wide) in the space
between the coils, has no tendency to fire back either in lighting or extinguishing
the flame and which construction is also applicable to burners for cooking or
heating purposes.
Instead of a coil being employed as hereinbefore described it will be obvious that
the same effect could be produced by inserting a tube of perforated metal within
the tubular. casting bor by a coil of wire or riband arranged in a volute form
after the manner of a clock spring and mounted upon a suitable casing forming the
mixing chamber, but these I should consider to be modifications of my invention.
Having thus particularly described and ascertained the nature of my inven-
tion and in what manner the same is to be performed 1 declare that what
I claim is
1st The novel combination and arrangement of parts constituting my improved.
gas burner substantially as and for the purposes herein before described.
2nd In the construction of a gas burner for heating cooking or other purposes,
the employment of a spiral coil of wire or its equivalent mounted and operating
substantially as and for the purposes hereinbefore described and illustrated on the
accompanying drawing.
1 04th of Danamba 1005
JOHN G. WILSON,
Agent for the Applicant.