. Agricultural engineering; a text book for students of secondary schools of agriculture, colleges offering a general course in the subject and the general reader. Agricultural engineering. 372 AGRICULTURAL ENGINEERING cylinder engine. If the engine is not in proper adjustment there is no tendency to continue to operate it, as there is when there are two or more cylinders, letting the remaining ones furnish more than their share of the power. A multi- plicity of cylinders, on the other hand, for a given power, reduces the magnitude of the impulses and thus to a large extent relieves the gearin
. Agricultural engineering; a text book for students of secondary schools of agriculture, colleges offering a general course in the subject and the general reader. Agricultural engineering. 372 AGRICULTURAL ENGINEERING cylinder engine. If the engine is not in proper adjustment there is no tendency to continue to operate it, as there is when there are two or more cylinders, letting the remaining ones furnish more than their share of the power. A multi- plicity of cylinders, on the other hand, for a given power, reduces the magnitude of the impulses and thus to a large extent relieves the gearing of severe shocks. The multiple- cylinder engine furnishes a steady power and is a little more agreeable to operate for that reason. There seems to be little doubt but that greater skill is required to keep the com- plicated engine in proper adjustment and repair. The Clutch. As the gas engine cannot be started under load, it is necessary to have a clutch to engage the engine with gears or with chains and sprockets that transmit the power to the drivers. This Fig. 238. One form , , , ?.-, , . *<• of clutch. The wood- clutch is generally used to engage a pulley en shoes are forced t ,i •• i i i • xx* outward against the when the engine is used to drive a station- "ngaghig i^b^fric- ary machine with a belt, when the traction tlon' gearing is disengaged. In construction, the clutch consists of shoes usually made of wooden blocks, which, by suitable levers, are made to bear against a disk or other surface with sufficient pressure to cause the power to be transmitted through the parts in contact. The form and material of the friction surfaces vary widely. Sometimes the clutch takes the form of two cones, hence the name cone clutch. Again, the friction may take place between a series of disks, one-half of which are attached to the engine shaft and the other half to the trans- mission. This type of clutch is called a multiple-disk clutch, and the disks are usually eng
Size: 1565px × 1597px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectagricul, bookyear1919
