United States or Bulgaria ? Vote for the TOP Country of the Week !
His new engine was called the Pyramidal, because of its form, and was the first move towards what are now called Direct-acting Engines, in which the lateral movement of the piston is communicated by connecting-rods to the rotatory movement of the crank-shaft. Mr.
The presence of the crank-shaft will assure the bearings being in line when the soldering is completed. The standards and bed should have matching marks made on them. The Eccentric. This can be formed by soldering two thin brass discs 1-15/16-inch diameter concentrically to the sides of a disc of 1-15/16-inch diameter and 5/16 inch thick.
A number of cylinders were required in this engine, three being shown in the specification all connected to the same crank-shaft. According to the Mechanic's Magazine, such an engine with a complete gas generating plant was fitted to a boat which ran as an experiment upon the Thames. A two-cylinder engine working on to a beam was built in Paris, but no useful results were obtained.
To keep a practically continuous forward movement on the driving-shaft, many motors are made with four cylinders, the piston of each being connected with the crank-shaft at a different angle, and each cylinder doing a different part of the work; for example, while No. 1 cylinder is doing the work from the force of the explosion, No. 2 is compressing, No. 3 is getting a fresh supply of gas, and No. 4 is cleaning out waste gas.
Four cylinders were used, the cylinder diameter being 4.42 inches; the engine was of the vertical type, arranged to drive two propellers at a rate of about 350 revolutions per minute, gearing being accomplished by means of chain drive from crank-shaft end to propeller spindle.
We broke a crank-shaft between there and Port Phillip, Melbourne; a fire in the hold occurred at Adelaide; and at Albany we buried a passenger who had died of consumption one day out from King George's Sound. At Colombo, also, we had a misfortune, but it was of a peculiar kind, and did not obtrude itself at once; it was found in an addition to our passenger list.
The crank pin will be rendered immovable by a small lock screw penetrating the boss edgeways and engaging with a nick in the pin. Fixing the Standards and Bearings. Place the two bearings in their standards and slip the crank shaft through them. Place standards on the bed, with their centre lines on the crank-shaft centre line.
After this was done, we tested the machine, and the crank-shaft of the engine broke and flew clear across the shop. By working night and day a new crank-shaft was put in, and we only had three days left from that time to get it on board the steamer; and had also to run a test.
The crank-shaft hole should be a trifle small, so that the crank shall get a tight hold of the shaft without pinning. The collar, D, and wipe, W, are soldered to the shaft after this has been passed through its bearings. The brush B1 should press firmly, but not unnecessarily so, against the collar.
Extending immediately below the camshaft is another vertical shaft, driven by bevel gears from the crank-shaft, and terminating in a worm which drives the multiple piston oil pumps. The cylinders are made from steel forgings, as are the valve chamber elbows, which are machined all over and welded together.
Word Of The Day