3
legs
4
Look at foldout-15. In the construction of
the ___________ shown, the legs are joined by the
ring at the top. The ______ on each of the cali-
pers are spread apart by means of an ___________
screw.
9
inside
10
A micrometer is a type of caliper which is
diameter
equipped with a calibrated scale. Although the
inside
proper title for the tool is micrometer caliper,
dimension
it is generally called a ____ _________________
15
pitch
16
You can see from A in foldout-17 that the
_____________ of a screw is the _____________
screw
from the top of one of its _________ to the top
of an _________ thread. This pitch will remain
1/40
constant for any pair of adjacent threads.
21
0.375
22
From the preceding problem it should be
clear that the product of the pitch (0.025 inch)
and a specific number of turns (40) will move
the end of the screw a predetermined distance of
__________ inch.
27
anvil
28
Although the ratchet stop shown in foldout-
18 is turned to produce motion in small incre-
frame
ments, the _______ _______ does not move forward
or backward along the axis of the spindle.
sleeve (barrel)
33
accurate
34
The precision screw (spindle) has 40 threads
pitch
per inch. This means that the pitch of the
sleeve
screw and the movement of the spindle and thimble
barrel
is _______ inch for each complete revolution of
scales
the _____________ .
thimble
69
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