No. 51.
UNKNOWN LAMP.
CONSTRUCTION.
Gauze. Two 28 mesh iron.
Glass. The glass is built up of two concentric cylinders each 3/32 ins.
thick with the wire reinforcing between them. The top and bottom edges are sealed together with cement.
Lock. Screw.
Burner.
Air feed is through the holes near the bottom of the lamp into an air chamber from which it passes through a set of smaller holes in the top of the oil vessel, through a horizontal gauze which surrounds the burner, thence to the flame.
HISTORICAL NOTE.
This lamp is more probably a test model; the oil vessel has many signs of rather crude handwork. The lamp was certainly not widely adopted. Its date is probably about 1890.
No. 77 Click to view image |
No. 79 Click to view image |