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" PITCH AND LEAD OF SCREW THREAD. The terms " pitch " and " lead " of screw threads are often confused. The pitch of a screw thread is the distance from the center of one thread to the center of the next thread, whether the screw has a single, double, triple,... "
Machinists' and Draftsmen's Handbook: Containing Tables, Rules, and Formulas ... - Page 401
by Peder Lobben - 1899 - 438 pages
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Formulas in Gearing: With Practical Suggestions

Charles C. Stutz, Brown & Sharpe Manufacturing Company (Providence, R.I.) - Gearing - 1896 - 104 pages
...5. The examples so far given all deal with single thread. The pitch of a screw is the distance from center of one thread to the center of the next. The lead of a screw is the advance for each complete revolution. In a single thread screw the pitch is equal to the...
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Questions and Answers from the American Machinist

Mechanical engineering - 1900 - 428 pages
...one of its sides, and the depth of a sharp V thread is therefore .866 of the pitch, or of distance from the center of one thread to the center of the next. Multiplying .866 by 2 we have 1.7328, and this divided by the number of threads per inch gives the...
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Text Book of Mechanical Drawing ...

John S. Rooke - Mechanical drawing - 1902 - 96 pages
...center of one thread to the center of the next is ^ of an inch, and in the latter case, the distance from the center of one thread to the center of the next is | of an inch. 11155 gear on the stud 4 ' 5 4 i 4 gear on the lead-screw. s gears are not made with...
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The Shop Review

1924 - 518 pages
...reservoir. Screws on some bench vises are multiple threaded. Pitch. The pitch of a thread is the distance from the center of one thread to the center of the next, measured in a line parallel to the axis of the screw, or nut. Pitch is written "P." A screw having,...
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Mechanical Engineering and Machine Shop Practice

Stanley Holmes Moore - Machine-shop practice - 1908 - 532 pages
...the sense in which it should always be used in referring to screw threads, "pitch" is the distance from the center of one thread to the center of the next thread, measured in a line parallel to the axis of the screw. The "threads to the inch" and "thread...
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Text-book of the Principles of Machine Work: Prepared for Students in ...

Robert Henry Smith - Machine-shop practice - 1910 - 408 pages
...See Multiple Threads, § 622. 211. The pitch of a thread is the distance along the axis of the work from the center of one thread to the center of the next, as P, Fig. 141. 212. The lead of a thread is the distance the screw advances in one revolution. In...
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Bulletin, Issue 32

Philippines. Bureau of Education - Education - 1910 - 198 pages
...„ — 02 — i— -Oi$— ' 'ft- 4 .196 13 x .013 99 100 By the term "pitch" is meant the distance from the center of one .thread to the center of the next, measured parallel to the axis of the bolt. Fig. B shows the "conventional method" of representing bolt...
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Applied Mechanical Drawing for First and Second Year Classes in High Schools ...

Frank Elliott Mathewson, Judson Lloyd Stewart - Mechanical drawing - 1911 - 176 pages
...easily disconnected when necessary." ( Unwin- Machine Design) The pitch of a screw is the distance from the center of one thread to the center of the next thread, measured parallel to the axis of the screw. The lead of a screw is the distance its nut would...
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Machine Shop Catechism: Consisting of Over 1000 Carefully Selected Questions ...

Machine-shop practice - 1913 - 240 pages
...and the work to be cut. If, for example, we have to make a thread of 1 1/4-in. pitch, or 1 1/4 in. from the center of one thread to the center of the next, we can proceed as follows: As the threads of the lead screw are 1/4 in. apart, it is very evident that...
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Text-book of Advanced Machine Work: Prepared for Students in Technical ...

Robert Henry Smith - Machine-shop practice - 1915 - 582 pages
...See Multiple Threads, p. 631. 38. The pitch of a thread is the distance along the axis of the work from the center of one thread to the center of the next, as P, Fig. 3339. The lead of a thread is the distance the screw advances in one revolution. In a single...
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