SHORT NOTES ON PROFESSIONAL SUBJECTS. 
47 
The pipes when sunk can be drawn at pleasure in two or three ways. 
(1) The monkey is placed on the head of the pipe, and the clamp screwed on, 
near the top. By raising the monkey, and striking the clamp a series of blows, the 
pipe is started and gradually drawn, the position of the clamp being shifted as 
required. Fig. S. 
(2) A chain is passed once or twice round the pipe, one end passing through 
a ring at the other. A moveable link is then placed on the chain, and a lever or 
handspike inserted into the link, which tightening the chain round the pipe gradually 
lifts the well, the position of the chain being altered as required. Fig. 4. 
Fig. 4. 
Stores Required . 
The following stores are required for sinking a well in addition to pipes, pump, 
&C.:— 
1 File. 
4 Gas tongs, pairs (If", If", f", 
1 Crowbar 5 ft. 
1 Spanner (for clamp). 
1 Wrench (for clamp of pulleys). 
1 Chain, 3 ft. and link. 
*1 Monkey. 
Clamp. 
*1 Pair of pulleys and clamp. 
1 Tool (6 ft. gas pipe with piece welded in). 
Gas pipe If in., weighs about 2f lbs. per foot. 
lbs. 
Estimated weight of 
stores . 142 
Weight of pump . 24 
Weight of tubing for 
20 ft. well . 56 
* The stores marked thus can be carried on the tool (the whole weighing about 100 lbs.) by two 
men. 
