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.
Steel tubing, doubled up and set the rear end of the machine completely free.
Resting on the centre of the ivory disk was a small piece of rubber tubing, and this was lightly pressed by the diaphragm A, which was held in place by the mouthpiece M.
Among the city's manufactures are oxide of tin and other chemicals, iron and steel, leather goods, automobiles and bicycles, electrical and telephone supplies, butted tubing, gas engines, screws and bolts, silk, lace and hosiery.
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.
For pumping a well a valved working-barrel with valved sucker is attached to the lower end of the tubing, a perforated " anchor " being placed below.
Flexible tubing for electric wires (first made at Chelsea 1889) and art tiles are important products.
Of late years a considerable amount of seamless tubing has been made, much in the same way as lead piping, by forcing the mixed rubber through a die, and curing as above.
These are hollow glass beads of variable density; they may be prepared by melting off pieces of very thin capillary tubing, and determining the density in each case by the method just previously described.
By means of a piece of stretched rubber tubing, this crucible is supported in the mouth of an ordinary funnel which is connected with an exhausting apparatus; and water holding in suspension fine scrapings of asbestos, purified by boiling with strong hydrochloric acid and washing with water, is run through it, so that the perforated bottom is covered with a layer of felted asbestos.
The change in pitch through motion of the source may be illustrated by putting a pitch-pipe in one end of a few feet of rubber tubing and blowing through the other end while the tubing is whirled round the head.
Barrett found that the best form of burner for ordinary gas pressure might be made of glass tubing about $ in.
A bore is made into the salt, and lined with tubing, and this tube where it traverses the salt is pierced with holes.
The material of which the framework was built was thin steel tubing, exceedingly light.
Washington is in a bituminous coal and natural gas region, and there are manufactories of glass, iron tubing and pipe, tin plate, steel, &c. The site was part of a tract bought in 1771 by David Hoge and was known at first as Catfish camp after an Indian chief, Tingooqua or Catfish.