Shop Mathematics, Τόμος 1McGraw-Hill, 1931 |
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Σελίδα 98
... threads per inch . If the lathe has a lead screw with 6 threads per inch , 6 revolutions of the lead screw will move the carriage and tool 1 in . By referring to Fig . 22 it can easily be seen that if the spindle , or work , revolves ...
... threads per inch . If the lathe has a lead screw with 6 threads per inch , 6 revolutions of the lead screw will move the carriage and tool 1 in . By referring to Fig . 22 it can easily be seen that if the spindle , or work , revolves ...
Σελίδα 99
... Threads per inch to be cut Lead screw gear teeth Threads per inch on lead screw Stud gear teeth RX = To cut 12 threads per inch with a lathe that has a 6 - pitch lead screw and a fixed ratio , R , of 1 to 1 , requires 1 12 12 60 teeth ...
... Threads per inch to be cut Lead screw gear teeth Threads per inch on lead screw Stud gear teeth RX = To cut 12 threads per inch with a lathe that has a 6 - pitch lead screw and a fixed ratio , R , of 1 to 1 , requires 1 12 12 60 teeth ...
Σελίδα 100
... threads per inch on the lead screw . There are to be 111⁄2 threads per inch on the pipe . What is the ratio of the speed to the spindle and lead screw ? 200. The lead screw on the table of a milling machine has a double thread with a ...
... threads per inch on the lead screw . There are to be 111⁄2 threads per inch on the pipe . What is the ratio of the speed to the spindle and lead screw ? 200. The lead screw on the table of a milling machine has a double thread with a ...
Περιεχόμενα
ARTICLE | 1 |
Improper fractions | 7 |
Reduction to lower terms | 13 |
Πνευματικά δικαιώματα | |
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amount Answer Antilog belt block boiler bolt brake horsepower Calculate castings cent Centigrade centimeters ciphers circle circumference common fraction cutting speed cylinder decimal places decimal point denominator diameter dimes distance divide dividend division dollar efficiency emery wheel equal Example Explanation Fahrenheit feet figure foot force arm formula given heat hoist horsepower improper fraction inclined plane indicated jackscrew lathe lead screw length lever lifted line shaft load logarithmic scale logarithms machine mantissa measure mechanical advantage meter minute mixed number multiply number of teeth pipe piston pounds pressure Problem pull pulley pump quotient raised ratio reduced revolutions per minute rope scale shown in Fig slide rule square inch square root steam engine steel stress stroke subtract surface speed tank temperature threads per inch trial divisor unit volume weight arm whole number width