Pitch line

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(Gearing) an ideal line, in a toothed gear or rack, bearing such a relation to a corresponding line in another gear, with which the former works, that the two lines will have a common velocity as in rolling contact; it usually cuts the teeth at about the middle of their height, and, in a circular gear, is a circle concentric with the axis of the gear; the line, or circle, on which the pitch of teeth is measured.

See also: Pitch

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At the bottom of the display, just below the -30 degree pitch line, is a processor annunciator.
This pitch line will not only make your prospect smile, it will also make you more likable in their eyes, according to Forbes.
And it's thanks to the donation of a pitch line marker from Ripponden Parish Council.
South Bank Football Community Association received a PS346 grant and has just taken delivery of a new pitch line marker for community matches.
Since your tablet does not have great-sounding speakers, you will need an external speaker system that packs a punch, says the pitch line.
Printing blankets with consistent pitch line for maximum printing accuracy
Rod Dreher's identification of a "crunchy con" movement got caught in this trap; he sounds like an adman whose pitch line is, "Buy our product because you hate consumerism
The Zero Pitch Line (ZPL) is another reference for the FPM, and is a line representing zero climb or descent.
Church for people who've given up on church" is their pitch line.
We settled on an appropriate pitch line that went something like, "A liberal who sometimes will surprise you.
I think we can safely say there will be goals galore in this one,plus a pitch line eruption of Biblical proportions as football's answer to Mount Vesuvius smoulders over every injustice.
0]/R) that the curved pitch lines make, relative to the nominal pitch line direction, at a distance [w.