steel tubing, doubled up and set the rear end of the machine completely free.
The device employed for this purpose is known as the water-packer, and consists in its simplest form of an india-rubber ring, which is applied between the tubing and the well-casing, so that upon compression it makes a tight joint.
The fishing tools are generally attached to the cable, and are used with portions of the ordinary string of tools, but some are fitted to pump-rods or tubing, and others to special rods.
Flexible tubing for electric wires (first made at Chelsea 1889) and art tiles are important products.
Cyrus (Munich, 1871); Roos, De Theodoreto Clementis et Eusebii Compilatore (Halle, 1883); Nolte in the Tubing.