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单词 saddle joint
释义

saddle jointn.

Brit. /ˈsadl dʒɔɪnt/, U.S. /ˈsæd(ə)l ˌdʒɔɪnt/
Origin: Formed within English, by compounding. Etymons: saddle n.1, joint n.1
Etymology: < saddle n.1 + joint n.1
1. Engineering. A joint between metal pipes in which one pipe is cut to fit around the other. Also: a metal joint, used chiefly with sheet metal, in which the edge of one member is bent over the upturned edge of the next.
ΚΠ
1852 T. Antisell Hand-bk. Useful Arts in Putnam's Home Cycl. III. 205/2 A series of tubes connected by saddle joints are in the box [sc. in a gas condenser].
1864 Amer. Railway Times 9 July 223/2 A single piece of wrought iron, which was joined to the frame by a kind of saddle joint.
1876 E. H. Knight Amer. Mech. Dict. (new ed.) III. 2011/2 Saddle-joint, a form of joint for sheet-metal... One portion overlaps and straddles the vertical edge of the next.
1909 T. H. Russell & C. P. Root Amer. Cycl. of Automobile V. 1459 Saddle joint, in sheet metal working, a joint formed by bending the edge of one sheet over the turned-up edge of another.
2003 Welding Basics: Introd. to Pract. & Ornamental Welding Gloss. 139 Saddle joint, a joint between round tubes where one tube has been cut to fit around the other.
2. Anatomy and Zoology. A bone joint in which the articulating surfaces are convex in one direction and concave in the other, allowing movement in two axes.
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the world > life > the body > structural parts > joint > [noun]
lithc1000
jointc1290
jointure1382
conjunctionc1400
article?a1425
juncture?a1500
linka1547
articulation1578
flexion1607
coarticulation1615
de-articulation1615
syntax1615
internodium1653
saddle joint1867
1867 Philos. Trans. (Royal Soc.) 157 351 In the Lemuroidea, however, there is a true and decided saddle joint.
1937 Amer. Jrnl. Surg. 38 540/2 The thumb is freely movable in its saddle joint on the greater multangular.
1958 Trans. Kansas Acad. Sci. 61 90 The South American [turtle] Podocnemis retained the primitive skull and bursae but evolved small mesoplastra and curious saddle joints of the cervical vertebrae.
1995 J. H. Schwartz Skeleton Keys i. 6/2 There is only one saddle joint (also called a sellar joint) in the human skeleton: the carpo-metacarpal joint of the pollex (i.e. the joint at the base of the thumb).
3.
a. Masonry. A joint in which the ends of adjoining blocks are shaped to direct rainwater away from the mortar in the joint.
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society > occupation and work > industry > building or constructing > building or providing with specific parts > specific parts built or constructed > [noun] > joint > types of
gemew?a1400
match-joint1683
matched joint1688
joggle1703
water joint1810
pin-joint1835
shackle-joint1837
screw shackle1847
through-joint1851
joggling1858
leg joint1858
splice1875
bed-joint1876
butting joint1887
saddle joint1901
contraction joint1909
1901 R. Sturgis Dict. Archit. II. 655 Saddle Joint. In a weathered course of masonry,..a joint formed between two adjoining stones whose ends are cut higher than the surface of the weathering between. The projections at the ends are usually sloped or rounded away from the joint..so as to shed water from the mortar.
1997 L. F. Webster Wiley Dict. Civil Engin. & Constr. 494/2 Saddle joint, saddle-shaped joint between masonry blocks in a cornice that throws water away from the joint. Also called Water joint.
b. Woodworking. A joint used to join an upright timber to a horizontal one, formed by cutting a notch in one timber to receive a corresponding projection or tenon cut in the other.
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society > occupation and work > industry > building or constructing > constructing or working with wood > [noun] > wooden structures or wooden parts of > means of fitting together > types of joint
indenting1382
scarf1497
swallowtail1548
dovetail1565
mortise-piece1577
tenon and mortise1610
culver-tail1616
mortise and tenon1631
finger joint1657
breaking joint1663
meeting1663
mitre1665
scarfing1671
heading joint1773
dovetail-joint1776
butting joint1803
bevel-joint1823
lap-joint1823
lapped mitre1825
mitre dovetail1847
bridle joint1860
mortise1875
sypher-joint1875
keyed mitre1876
tongue-and-groove1882
saddle joint1948
1948 T. Corkhill Gloss. Wood 472 Saddle joint, a joint to provide a good bearing surface for the foot of a vertical timber and to prevent lateral movement.
1990 Britannia 21 150 The most variation [in the construction of Roman timber buildings] was seen in the attachment of tiebacks, where half-laps, saddle-joints, and both full and half-dovetail laps were used.
This entry has been updated (OED Third Edition, June 2008; most recently modified version published online March 2022).
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n.1852
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