Improvements in Self-generating Gas or Vapour Burners, Applicable for Lighting or Heating Purposes.
Year: 1890

page_text: COMPLETE SPECIFICATION.
Improvements in Self-generating Gas or Vapour Burners, Applicable
for Lighting or Heating Purposes.
I. JAMES JOHNSTON, of 21 North Tay Street, Dundee, in the County of Forfar, N.B.
Plumber, Brassfounder, and Gas Fitter, 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. :
-
The object of my invention is to generate gas or vapour from illuminating oils or
combustible liquids, in an improved manner and by means of improved apparatus, and
to use the said gas for lighting or heating purposes.
The accompanying sheet of explanatory drawings illustrates the method of carrying
out my invention.
Fig. 1. represents a sectional elevation at D. D., Fig. 2. a sectional elevation
at C. C., Fig. 3. a sectional plan at A. A., and Fig. 4. a sectional plan at B. B. of my
self generating gas or vapour burner. Fig. 5. represents a plan and Fig. 6. a sectional
elevation at E. E. of the needle tap used in connection with the self generating burner
to adjust the flow of the combustible liquid. Fig. 7. represents a part view of the
burner as constructed for heating purposes.
In these drawings the same reference numerals are used to mark the same or like
parts wherever they are repeated.
The oil from which the gas or vapour is generated is contained in a reservoir which
is not shown in my drawing, the said reservoir being preferably placed in such a
position that the level of the surface of the oil in it is higher than the retort 7. in
connection with the burner. If the level of the surface of the oil in the reservoir
were below the retort 7. then it would be necessary to employ means to supply the oil
to the burner, and this I prefer not to do. The liquid before flowing to the burner
passes through the needle tap illustrated by Figs. 5. and 6., in the direction shown by
the arrows, and by turning round the tap 8. the point 9. is raised or lowered, thus
allowing a greater or a lesser quantity of liquid to pass. The liquid enters the burner
at 10. rises into the retort 7. through the channel 11. and fills it, flows down the
channel 12. along the channel 13. and finally rises through the small hole 14. and
flows into the cup 15. When there is a sufficient quantity of oil in the cup 15. a light
is applied to it and it is set on fire. In a short time the retort 7. and its contents
become heated nothing but gas or vapour issuing from the orifice 14. and the retort 7.
becomes wholly or partially filled with gas. To facilitate the transfer of heat from the
flame to the liquid in the retort 7. bars 16. are cast on its bottom, and to give direction
to the flame the burning gas is made to pass through the orifice 17. strike the bottom
of the retort 7. and pass out through the openings 18. 19. are screws for the ends of
the channels and are for the purpose of closing them, after the said channels have been
bored out. 20. are somewhat similar screws and are used for closing the holes
through which the core of the reservoir is taken out after the burner is cast.
Fig. 7. illustrates the burner as adapted for heating purposes, in which 22. is a
Bunsen tube for mixing air with the gas issuing from the orifice 14.; the flame being
at 23.
In using a burner constructed and proportioned like mine, no oil will issue from
the orifice 14. after the retort 7. is fully heated, all the gas being generated there.
The retort 7. being large and having the bars 16. incorporated with its under surface,
rapidly attains and keeps a high temperature thus generating the gas quickly. The
argeness of the retort in proportion to the orifice 14. allows of a considerable quantity
of gas being always held in reserve and thus the flame is steady and brilliant. By
using the large retort the loud hissing noise commonly heard when using the ordinary
elf generating burners is reduced to a minimum, and I do not require to use an
djusting needle valve at 21. to regulate the supply of gas to the burner 14.

page_text: The combustible liquid I prefer to use for my burner is composed of one third of
naphtha and two thirds of paraffin oil, the best oils being the cheapest and giving the
most satisfaction.
Having now particularly described and ascertained the nature of my said Inven-
tion and in what manner the same is to be performed, I declare that what I
claim is
(1) In self generating gas or vapour burners the retort 7. constructed and pro-
portioned substantially as and for the purposes set forth.
(2) In self generating gas or vapour burners the combination of the retort 7.
.constructed and proportioned substantially as and for the purposes set forth, with the
bars 16.
(3) In self generating gas or vapour burners the combination of the retort 7.
.constructed and proportioned substantially as and for the purposes set forth, with the
bars 16. and the passage 17.
(4) In self generating gas or vapour burners the combination of the retort 7.
constructed and proportioned substantially as and for the purposes set forth, with the
bars 16. the passage 17. and the continuous channel 12. 13. and 14.-that is to say
without a needle valve at 21. as set forth.
(5) In self generating gas or vapour burners, the combination of the retort 7.
constructed and proportioned substantially as and for the purposes set forth, with the
bars 16., the passage 17., the continuous channel 12. 13. and 14. and the Bunsen
burner 22, as set forth.
(6) The combination and arrangement of self generating gas or vapour burners,
substantially as herein before described, and illustrated by Figs. 1. 2. 3. 4. and 7.
inclusive of the drawings.
GEO. C. DOUGLAS & Co.,
Applicant's Agents.