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To fill the car reservoir it is only necessary to connect the mouths of the supply pipes with the valves of the cars by means of rubber tubing an operation which takes about one minute for each car.
This is useful as a test of mastery of the preceding exercise. A piece of 3/16 or 7/32 inch tubing is joined to each end of a piece of tubing 5/8 by about 5 inches, and two constrictions made in the large tube, by the method described on page 10. For this exercise tubing of 1/4 inch diameter and moderately strong walls is selected.
In the present chapter we will assume that the barrels of all the boilers described are made out of solid-drawn seamless copper tubing, which can be bought in all diameters up to 6 inches, and of any one of several thicknesses. Brass tubing is more easily soldered, but not so good to braze, and generally not so strong as copper, other things being equal.
It is all very puzzling. Monday, May 22. The 'go cart' consists of a framework of steel tubing supported on four bicycle wheels. The surface of the floes carries 1 to 2 inches of snow, barely covering the salt ice flowers, and for this condition this vehicle of Day's is excellent. The advantage is that it meets the case where the salt crystals form a heavy frictional surface for wood runners.
The quantity required and the terms of payment are the inducement to offer it to thee at the exceeding low price here stated, which thou wilt please keep to thyself undivulged to other person, etc., etc." As iron tubing would not have answered Morse's purpose, this decorous solicitation was declined with thanks.
The cork may now be removed from the open end of the large tube, this end heated in a large flame, caught together with a scrap of glass tubing and drawn off into a cone so that the base of the cone is about opposite the end of the inner tube. The lump of glass is drawn off the point of this cone and it is reblown to form a rounded end, as previously described.
Ishi, the Yana Indian, said that grizzlies were to be overcome with arrows and if they charged, they were to be met with the spear and fire. So we constructed spears having well-tempered blades more than a foot in length set upon heavy iron tubing and riveted to strong ash handles six feet in length. Back of the blade we fashioned quick lighting torches of cotton waste saturated with turpentine.
I refer to a sinuous line made in the paint, while green, and looking as if a short piece of rope, or, more properly, rubber tubing, since there is no rope-like texture visible, had been dropped upon it, and hastily removed but see, here are Osborne and Allen looking for all the world as if they were prepared to demonstrate a fourth dimension of space.
A single arm gas jet served for illuminating purposes, and in a little alcove stood a table with a small gas stove connected by rubber tubing with a gas fixture. There were two windows in the room, opening outward in the French manner on to a dilapidated balcony which overlooked the street below.
It is therefore recommended that the beginner take them up in the order given, at least as far as No. 7, and that each be mastered before attempting the next. The beginner should not leave the first exercise, for example, until he can join together two pieces of tubing so that they form one piece of substantially uniform inner and outer diameter, and without thick or thin spots.
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