The curve of contact of a cylinder circumscribed about a surface of the second degree is a plane curve, and situated in the diametral plane conjugate to the diameter parallel to the axis of the cylinder.
Its plane is parallel to the diametral plane, conjugate to the diameter passing through the summit of the cone.
Two isolated diametral spines exhibiting the peculiar spiral revolution at their central part, x 300 Fig.
It will thus be seen that if you have an idea of the diametral pitch and circular pitch, you can pretty fairly judge of the size that the teeth will be, and thus enable you to determine about what kind of teeth you should order.
Supposing you wanted to know the number of teeth in a gear where the pitch diameter and the diametral pitch are given.
You would proceed as follows: Let the diameter of the pitch circle be 10 inches, and the diameter of the diametral pitch be 4 inches.
Chiastolida# with ten diametral spines, derived from twenty radial spines opposite and grown together in pairs.
Diametral spines crossed loosely in the centre of the spherical or irregular roundish central capsule.
Of course every diametral spine pierces the capsule twice, at two points diametrically opposed.
It has sixteen diametral spines, disposed quite regularly after the same law of the thirty-two spines of Actinastrum which we described above (compare above, p.
However, in some species of this peculiar family the central part of the diametral spines is twisted like a screw or spirally convoluted (Pl.
The small group Chiastolida (or Acanthochiasmida) is characterised by the fact that the two rays which are opposite to one another in each axis unite and form a diametral bar.
Chiastolida# with sixteendiametral spines, derived from thirty-two radial spines opposite and grown together in pairs.
The genus Acanthochiasma with a small number of common species, comprises the Chiastolida with ten diametral spines, which are loosely crossed in the centre of the body.
Radial spines of variable number; every two opposite spines grown together in the centre; therefore numerous diametral spines are crossed freely in the centre, 3.
Thus if we say that a wheel has 40 diametral pitch we mean that it has 40 teeth to each inch of diameter.
The circumferential pitch is of course got by dividing the diametral pitch by [pi].
By the pitch of a wheel is meant the number of teeth to the inch of circumference or diameter of the wheel; the former is called the circumferential pitch, the latter the diametral pitch.
OC of a ring which is itself free to turn about a diametral axis OX at right angles to the former; this axis is carried by a second ring which is free to turn about a fixed diameter OZ, which is at right angles to OX.
The previously ground and fined salt surface (this work is done the same as in glass working) is now placed upon the polisher and motion instantly set up in diametral strokes.
If an error of concavity presents itself the process of polishing is gone over again, using short diametral strokes.
What is the diametral pitch of a wheel whose arc pitch is 1-1/2 inches?
To find the number of teeth contained in a wheel when the diameter and diametral pitch is given, multiply the diameter in inches by the diametral pitch.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "diametral" in a variety of sentences. We hope that you will now be able to make sentences using this word.
