Simple Browser
: Welcome guest :
log in
[
Home
| 
Graph
|  ]
KB:
SUMO
Language:
ChineseLanguage
ChinesePinyinWriting
ChineseSimplifiedWriting
ChineseTraditionalLanguage
EnglishLanguage
FrenchLanguage
GermanLanguage
HerbaceousPlant
Hindi
ItalianLanguage
JapaneseLanguage
PortugueseLanguage
SpanishLanguage
SwedishLanguage
WoodyPlant
cb
cz
de
hi
ro
sv
tg
Formal Language:
OWL
SUO-KIF
TPTP
traditionalLogic
KB Term:
Sigma KEE - Ratchet
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
Ratchet
A
Wrench
that allows an engaged
Bolt
to exhibit
Rotating
freely in one direction but not another, with respect to the handle of the wrench. Some wrenches have a switch that allows selection of one of two directions of free rotation.
Relationships
Parents
Wrench
A
Device
that is designed to apply a rotational force to an
AttachingDevice
, such as a
Bolt
.
Children
SnapOnRatchet
Show simplified definition with tree view
Show full definition (without tree view)
Show full definition (with tree view)
Sigma web home
Suggested Upper Merged Ontology (SUMO) web home
Sigma version 3.0 is
open source software
produced by
Articulate Software
and its partners