|
|
|
|
|
 |
 |
|||
A. B. C. D. the lamp.
A. E. F. D. the cover for the top.
G. the tube for supplying the oil.
H. the wire to trim the wick.
I. the perforated plate covering the air chamber which
surrounds the oil vessel.
K. L. apertures through which the air passes into the air
chamber.
M. tube for the wick.
N. O. P. Q. the cover to protect the glass cylinder.
A. B. C. D. a section of the lamp. a. b. c. d. the capillary
tubes. E. F. the apertures answerinf to the round holes in
plate 3, fig. 1.
The second plate, which is not shewn in fig. 1, corresponds
with the apertures at c. d. fig. 3.
This plate represents the Lamp at present in Killingworth Colliery. One, similar in principle and in construction (except that the top of the glass was contracted into a conical form), was in the hands of the manufacturer at the time I exhibited my former one to Mr. R. W. Brandling and Mr. Murray of Henderland, on the 24th of November, and was tried in the mine on the 30th, and on the 5th December was exhibited before the Literary and Philosophical Society of Newcastle.
Contains public sector information licensed under the 
