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The screwed boring spindle, which is in front of the machine, is actuated by miter gearing driven by a six horse power engine; the speed of driving is 400 revolutions a minute. The pump shown on the left-hand side of the engraving is used to deliver a constant stream of water through the boring bar, the connection being made by a flexible hose.
A workingman passed and remarked laughing: "Get your hair cut, Garibaldi." He looked after him wondering what he meant. Höflinger stepped near. The siren shrieked. The electrical bells yelled through the shops. Softly the gearing began to move. The steel beasts came to life again. The first thrill went through the halls.
The rigid connection between the cranks and the wheels does away with all the backlash, which is so unpleasant with chain or toothed wheel gearing.
Suitable winding gear for raising or lowering the lining tubes, boring rods, etc., is also mounted on the same frame. The drill is automatic in its action, and the speed can be regulated by friction gearing. The front part of the carriage is arranged so that it can be swung clear of the drill to raise and lower the bore rods, etc.
In the mean time, through gearing connecting the main shaft with the shutter, the latter is rotated, bringing its opening, D, coincident with the lens, and therefore exposing the film while it is stationary, after which the film again moves forward.
It had not quite reached the middle, toward which the structure was aiming, but its speed was sufficient to take it well out of the way, provided no accident occurred. And this is just what did occur. The unusual strain on the gearing caused something to give way, and the forward motion of the craft ceased at the very moment it reached the middle of the strong current.
Formerly, the power to drive a machine was derived from a very complicated arrangement of shafting and gearing brought from a distant engine. But by my system I conveyed the power to the machine by means of a steam pipe, which enabled the engine to which it was attached to be driven either fast or slow, or to be stopped or started, just as occasion required.
While so engaged he found that the great weight of water on the top of the cover sprang it, causing the sleeve bearing on the under side of the cover to be thrown out of place, and the gate pressed so hard against the case that it was almost impossible to move it, and after thoroughly testing with the different devices of gate arms, application was made and patent granted for adjustable gate arms, also for the new worm gate gearing May 1, 1888, and named Burham's new improved standard turbine.
Each of the bottom rolls carries at its end a large spur-wheel, these spur-wheels, which are on opposite sides of the machine, each gearing into a pinion on a shaft which runs from end to end below the rolls, and which is itself geared to the shaft carrying the belt pulleys, as shown. This is a very simple and direct mode of driving, and avoids the necessity for small wheels on the rolls.
=Improvements.= Then came some improvements and enlargements in the cylinder, and also the application of horse power by means of what was known as "tumbling rods" and a gearing attached to the cylinder. All this at first was on rather a small scale, only two, three, or four horses being used.
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