This section is from the book "The Boy Mechanic Vol. 2 1000 Things for Boys to Do", by Popular Mechanics Co.. Also available from Amazon: The Boy Mechanic, Vol2: 1000 Things for Boys to Do.
With a short length of old hose, a serviceable lawn sprinkler can be quickly and easily made. One end is provided with a regular coupling for connecting it to the line of good hose. The other end is turned up for several inches, and securely wired to the main part, thereby shutting off any flow through it. Several cuts are made into it, about halfway across and 6 in. apart. If the water is forced in, the only means , of escape will be through the slots, which will produce fine sprays, giving as good service as a manufactured sprinkler. - Contributed by A. B. Shaw, N. Dartmouth, Mass.
Ill: The Slots Cut in the Hose will Produce a Very Fine Spray of Water