 | John Haldeman Cooper - 1878 - 328 pàgines
...short distances above mentioned, while the larger belts show a similar sag of 2j to 4 inches, the main belts working well with a sag of 4 to 5 inches. "If...of the belt will produce a very heavy sag, drawing BO hard on the shaft as to produce great friction in the bearings, while at the same time the belt... | |
 | Manfred Powis Bale - 1880 - 468 pàgines
...belts should be cut from the centre of the skin. ' Thickness of belt does not always give strength. ' If too great a distance is attempted, the weight of...will produce a very heavy " sag," drawing so hard on the shaft as to produce great friction in the bearings, while at the same time the belt will have... | |
 | Manfred Powis Bale - 1880 - 122 pàgines
...belts should be cut from the centre of the skin. " Thickness of belt does not always give strength. " If too great a distance is attempted, the weight of...will produce a very heavy ' sag,' drawing so hard on the shaft as to produce great friction in the bearings, while at the same time the belt will have... | |
 | John Haldeman Cooper - 1888 - 424 pàgines
...short distances above mentioned, while the larger belts show a similar sag of 2J to 4 inches, the main belts working well with a sag of 4 to 5 inches. "...belt will produce a very heavy sag, drawing so hard on the shaft as to produce great friction in the bearings, while at the same time the belt will have... | |
 | Jay Manuel Whitham - 1890 - 966 pàgines
...For larger belts, working on larger pulleys, a distance of 20 to 25 feet does well, with a sag of 2£ to 4 inches. For main belts working on very large...belt will produce a very heavy sag, drawing so hard on the shaft as to produce great friction in the bearings, while at the same time the belt will have... | |
 | Jay Manuel Whitham - 1890 - 982 pàgines
...larger belts, working on larger pulleys, a distance of 20 •to 25 feet does well, with a sag of 2£ to 4 inches. For main belts working on very large...belt will produce a very heavy sag, drawing so hard on the shaft as to produce great friction in the bearings, while at the same time the belt will have... | |
 | David Bepler - 1890 - 308 pàgines
...Dressing ia also good. The motion of driving should run with and not against the laps of the belts. If too great a distance is attempted, the weight of...belt will produce a very heavy sag, drawing so hard on the shaft as to produce great friction in the bearing; while at the same time the belt will have... | |
 | William Bradford Homer - 1895 - 288 pàgines
...show a similar sag of 21^ to 4 inches, the main belts working well with a sag of 4 to 5 inches. 124. If too great a distance is attempted, the weight of...belt will produce a very heavy sag, drawing so hard on the shafts as to produce great friction in the bearings, while at the same time the belt will have... | |
 | 1908 - 358 pàgines
...dressing is also good. The motion of driving should run with and not against the laps of the belts. If too great a distance is attempted, the weight of...belt will produce a very heavy sag, drawing so hard on the shaft as to produce great friction in the bearings, while at the same time the belt will have... | |
 | Nehemiah Hawkins - 1909 - 710 pàgines
...pulleys, 15 feet Is a good average, the belt having a sag of H to 2 Inches. For larger belts working on large pulleys, the distance should be 25 to 30 feet,...5 Inches. If too great a distance is attempted the belt will have an unsteady flapping motion, which will destroy both the belt and machinery. Sail.—... | |
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For main belts working on very large pulleys, the distance should be 25 to 30 feet, the belts working well with a sag of 4 to 5 inches. If too great a distance is attempted, the weight of the belt will produce a very heavy sag... 
