PLATE 24.
MINING.
Shaft with Cases.
Shaft with Frames.
Galleries, Hard soil.
Shaft, Hard Soil.
Use of False Frame.
Section on A.B.
COMMENCEMENT
OF THREE-WAY JOIN.
INSERTION OF FUZES
IN POWDER BAG.
Spark Measurer.
CASE.
For Wire Fuzes.
Quantity Dynamo-
Electric Machine.
Continuous Circuit.
Simple Circuit.
Push Pick, 3lbs. 6oz.
Miner’s Shovel, 6lbs. 4oz.
Miner’s Pick, 6 lbs.
Miner’s Truck, 50 lbs.
Candle-stick.
31⁄2 oz.
Fig. 5.
Bucket.
Flexible Tube.
Tin Tube.
COUPLING UP FUZES
IN PAIRS.
Bellows, 15 lbs.
No. 4 Tube.
No. 13 Detonator.
No. 5 Detonator.
No. 9 Detonator, Naval.
No. 1 Fuze.
No. 10 Naval.
Bickford’s Instantaneous Fuze.
No. 8 Bickford Detonator.