poppet
n . 乖孩子,提升阀门,小枕木
乖孩子,提升阀门,小枕木
poppet n 1 :
a mushroom -
shaped valve that rises perpendicularly from its seat ;
commonly used in internal -
combustion engines [
synonym :
{
poppet }, {
poppet valve }]
Poppit \
Pop "
pit \,
n .
a small plastic bead with opposed holes and protuberant knobs ,
so shaped that the beads may be fastened to each other in chains and detached easily ,
and can be used to form variable -
length chains for use as necklaces ,
bracelets ,
or other ornamental objects .
Also called {
poppet }
and {
poppit bead }.
[
PJC ]
Poppet \
Pop "
pet \,
n .
1 .
See {
Puppet }.
[
1913 Webster ]
2 . (
Naut .)
One of certain upright timbers on the bilge ways ,
used to support a vessel in launching . --
Totten .
[
1913 Webster ]
3 . (
Mach .)
An upright support or guide fastened at the bottom only .
[
1913 Webster ]
4 .
same as {
poppit }.
[
PJC ]
{
Poppet head }, {
Puppet head }.
See {
Headstock }
(
a ) .
[
1913 Webster ]
Puppet \
Pup "
pet \,
n . [
OE .
popet ,
OF .
poupette ;
akin to F .
poup ['
e ]
e a doll ,
probably from L .
puppa ,
pupa ,
a girl ,
doll ,
puppet .
Cf . {
Poupeton }, {
Pupa }, {
Pupil }, {
Puppy }.] [
Written also {
poppet }.]
1 .
A small image in the human form ;
a doll .
[
1913 Webster ]
2 .
A similar figure moved by the hand or by a wire in a mock drama ;
a marionette ;
a wooden actor in a play .
[
1913 Webster ]
At the pipes of some carved organ move ,
The gilded puppets dance . --
Pope .
[
1913 Webster ]
3 .
One controlled in his action by the will of another ;
a tool ; --
so used in contempt . --
Sir W .
Scott .
[
1913 Webster ]
4 . (
Mach .)
The upright support for the bearing of the spindle in a lathe .
[
1913 Webster ]
{
Puppet master }.
Same as {
Puppetman }.
{
Puppet play },
a puppet show .
{
Puppet player },
one who manages the motions of puppets .
{
Puppet show },
a mock drama performed by puppets moved by wires .
{
Puppet valve },
a valve in the form of a circular disk ,
which covers a hole in its seat ,
and opens by moving bodily away from the seat while remaining parallel with it , --
used in steam engines ,
pumps ,
safety valves ,
etc .
Its edge is often beveled ,
and fits in a conical recess in the seat when the valve is closed .
See the valves shown in Illusts .
of {
Plunger pump },
and {
Safety valve },
under {
Plunger },
and {
Safety }.
[
1913 Webster ]
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