POWER TRANSMITTED BY WIRE ROPE
Wire Rope Drives
| Diam. of Wheel in Feet | No. of Revolutions Per Minute | Diam. of Rope | Horse Power |
|---|---|---|---|
| 3 | 80 | 3⁄8 | 3 |
| 3 | 100 | 3⁄8 | 3 1⁄2 |
| 3 | 120 | 3⁄8 | 4 |
| 3 | 140 | 3⁄8 | 4 1⁄2 |
| 4 | 80 | 3⁄8 | 4 |
| 4 | 100 | 3⁄8 | 5 |
| 4 | 120 | 3⁄8 | 6 |
| 4 | 140 | 3⁄8 | 7 |
| 5 | 80 | 7⁄16 | 9 |
| 5 | 100 | 7⁄16 | 11 |
| 5 | 120 | 7⁄16 | 13 |
| 5 | 140 | 7⁄16 | 15 |
| 6 | 80 | 1⁄2 | 14 |
| 6 | 100 | 1⁄2 | 17 |
| 6 | 120 | 1⁄2 | 20 |
| 6 | 140 | 1⁄2 | 23 |
| 7 | 80 | 9⁄16 | 20 |
| 7 | 100 | 9⁄16 | 25 |
| 7 | 120 | 9⁄16 | 30 |
| 7 | 140 | 9⁄16 | 35 |
| 8 | 80 | 5⁄8 | 26 |
| 8 | 100 | 5⁄8 | 32 |
| 8 | 120 | 5⁄8 | 39 |
| 8 | 140 | 5⁄8 | 45 |
| 9⁄16 | 47 | ||
| 9 | 80 | 5⁄8 | 48 |
| 9⁄16 | 58 | ||
| 9 | 100 | 5⁄8 | 60 |
| 9⁄16 | 69 | ||
| 9 | 120 | 5⁄8 | 73 |
| 9⁄16 | 82 | ||
| 9 | 140 | 5⁄8 | 84 |
| 10 | 80 | 5⁄8 | 64 |
| 11⁄16 | 68 | ||
| 10 | 100 | 5⁄8 | 80 |
| 11⁄16 | 85 | ||
| 10 | 120 | 5⁄8 | 96 |
| 11⁄16 | 102 | ||
| 10 | 140 | 5⁄8 | 112 |
| 11⁄16 | 119 | ||
| 12 | 80 | 11⁄16 | 93 |
| 3⁄4 | 99 | ||
| 12 | 100 | 11⁄16 | 116 |
| 3⁄4 | 124 | ||
| 12 | 120 | 11⁄16 | 140 |
| 3⁄4 | 149 | ||
| 12 | 120 | 7⁄8 | 173 |
| 14 | 80 | 1 | 141 |
| 1 1⁄8 | 148 | ||
| 14 | 100 | 1 | 176 |
| 1 1⁄8 | 185 | ||
MINIMUM DIAMETERS OF SHEAVES FOR
POWER TRANSMISSION BY WIRE ROPES
(All Dimensions in Inches)
| Rope Diam. | Steel | Iron | ||
|---|---|---|---|---|
| 7-Wire | 19-Wire | 7-Wire | 19-Wire | |
| 1⁄4 | 20 | 12 | 40 | 24 |
| 5⁄16 | 25 | 15 | 50 | 30 |
| 3⁄8 | 30 | 18 | 60 | 36 |
| 7⁄16 | 35 | 21 | 70 | 42 |
| 1⁄2 | 40 | 24 | 80 | 48 |
| 9⁄16 | 45 | 27 | 90 | 54 |
| 5⁄8 | 50 | 30 | 100 | 60 |
| 11⁄16 | 55 | 32 | 110 | 66 |
| 3⁄4 | 60 | 35 | 120 | 72 |
| 7⁄8 | 70 | 41 | 140 | 84 |
| 1 | 80 | 47 | 160 | 96 |
| 1 1⁄8 | 90 | 53 | 180 | 108 |
| 1 1⁄4 | 100 | 58 | 200 | 120 |
| 1 3⁄8 | 110 | 64 | 220 | 132 |
| 1 1⁄2 | 120 | 70 | 240 | 144 |
DIAMETER OF MINIMUM SHEAVES IN INCHES,
CORRESPONDING TO A MAXIMUM
SAFE WORKING TENSION.
| Diam. of Rope in Inches | Steel | Iron | ||||
|---|---|---|---|---|---|---|
| 7-Wire | 12-Wire | 19-Wire | 7-Wire | 12-Wire | 19-Wire | |
| 1⁄4 | 19 | 15 | 11 | 39 | 31 | 23 |
| 5⁄16 | 24 | 19 | 14 | 49 | 38 | 29 |
| 3⁄8 | 29 | 22 | 17 | 59 | 46 | 35 |
| 7⁄16 | 34 | 26 | 19 | 69 | 54 | 41 |
| 1⁄2 | 38 | 30 | 22 | 79 | 61 | 47 |
| 9⁄16 | 43 | 33 | 25 | 89 | 69 | 52 |
| 5⁄8 | 48 | 37 | 28 | 99 | 77 | 58 |
| 11⁄16 | 53 | 41 | 31 | 109 | 84 | 64 |
| 3⁄4 | 58 | 44 | 34 | 119 | 92 | 70 |
| 7⁄8 | 67 | 52 | 39 | 138 | 107 | 81 |
| 1 | 77 | 59 | 45 | 158 | 123 | 93 |
ENGINEERING BULLETINS
PUBLISHED BY
THE STATE COLLEGE OF WASHINGTON
ENGINEERING EXPERIMENT STATION.
- 1. Sewage Disposal for the Country Home.
- Septic tanks and underground distribution systems.
- By O. L. Waller and M. K. Snyder. Mar. 1914, July 1916.
- 2. How to Measure Water.
- Construction of weirs and tables for same.
- By O. L. Waller. Oct. 1915.
- 3. Water Supply for the Country Home.
- Water Sources, pumps, filters, storage tanks and cost data.
- By M. K. Snyder. Jan. 1916 (out of print).
- 4. Construction and Maintenance of Earth Roads.
- Grades and grading, drainage and dragging.
- By L. V. Edwards. April 1916.
- 5. Cost of Pumping for Irrigation.
- Cost of equipment and operation of same, with tables of efficiency.
- By O. L. Waller. Aug. 1916 (out of print).
- 6. Fuel Economy in Domestic Heating and Cooking.
- Fuel Tables, heating equipment and care of same.
- By B. L. Steele. Dec. 1917.
- 7. Thawing Frozen Water Pipes Electrically.
- Method of Thawing and list of equipment needed.
- By H. J. Dana. Oct. 1921.
- 8. The Use of Ropes and Tackle.
- Illustrations of application to different jobs.
- By H. J. Dana and W. A. Pearl. Mar. 1922.
- 9. Well and Spring Protection.
- By M. K. Snyder. (In preparation).
- 10. Water Purification for the Country Home.
- By M. K. Snyder. (In preparation).
- 11. Farm Water Systems.
- By M. K. Snyder and H. J. Dana. (In preparation).
- 12. Commercial and Economic Efficiency of Commercial Pipe Coverings.
- By H. J. Dana. (In preparation).
Mechanics Arts Building—Headquarters Mechanical Engineering Experiment Station
The
State College of Washington
Founded and Maintained by the National Government
and the State of Washington
College of Agriculture and Experiment Station
Farm Crops, Soils, Animal Husbandry, Dairy Husbandry, Poultry Husbandry, Horticulture, Landscape Gardening, Forestry, Farm Management, Plant Pathology, Agricultural Engineering.
College of Mechanic Arts and Engineering
Architecture, Civil Engineering, Electrical Engineering, Hydro-Electrical Engineering, Mathematics, Mechanical Engineering, Physics.
College of Sciences and Arts
Chemistry, Chemical Engineering, Botany, Zoology, English, Economic Science and History, Foreign Languages.
College of Home Economics
College of Veterinary Science
School of Mines and Geology
Geology, Mining, Metallurgy, Metallography.
School of Education
School of Music and Fine Arts
Music, Oral Expression, Dramatic Art, Fine Arts.
School of Pharmacy
The Graduate School
Department of Military Science and Tactics
Department of Physical Education and Athletics
The Summer Session (six weeks)
Short Courses from one to twelve weeks, beginning early in January, are offered in Farming, Gas Tractors, Automobiles, Home Economics, and Mining.
The Department of Elementary Science offers three-year vocational courses in agriculture, horticulture, mechanic and industrial arts, commerce, and domestic economy, from which young men and women can, if they desire, be admitted to the Freshman class of the College.
The College Year Begins Monday, September 18, 1922.
Address all inquiries to:
THE REGISTRAR, Pullman, Wash.
Extension Service, under the Smith-Lever Act, is in charge of the demonstration and correspondence work in Agriculture, Home Economics, Boys and Girls Club Work, and County Work.
Address: The Director.
The Division of General College Extension gives correspondence courses, organizes extension classes, supplies lectures and educational motion picture films.
Address: Director.
MANY DEPARTMENTS PUBLISH SPECIAL BOOKLETS