jack laddern.¹

Brit.

/ˈdʒak ˌladə/, U.S.

/ˈdʒæk ˌlædər/

Origin: Formed within English, by compounding. Etymons: Jack n.², ladder n.

Etymology: < Jack n.² (compare Jack n.² II.) + ladder n.

†1. Perhaps (in a loom): a frame used for holding the heddles in place. Obsolete. rare.

ΚΠ

1837 Manch. Guardian 17 June Joiners' tools, spirit level, Dobbin's jack ladders.

2. A machine used for conveying logs to the floor of a sawmill, in which the logs are carried by a continuous chain having spikes, hooks, etc., along its length; = jack chain n. 2.

ΘΚΠ

the world > food and drink > farming > forestry or arboriculture > lumbering > [noun] > lumbering equipment > chain for moving logs

timber-chain1707

jack ladder1871

jack chain1878

1871 Daily Gaz. & Bull. (Williamsport, Pa.) 26 May 4/1 The mill..caught fire near the jack ladder.

1944 Lethbridge (Alberta) Herald 4 Mar. 13/2 Prior to the start of mill operations the pond will be flooded, and logs will be carried up to the headsaw on a jackladder.

1987 R. Solski Lumbering Community 45 The ‘jack ladder’ looks like a conveyor belt with shelves.

2008 M. Van Osch Spar Trees & Mammoth Tusks 105 A log was halfway up the jack ladder and it kind of rolled inside the trough.

This entry has been updated (OED Third Edition, March 2018; most recently modified version published online March 2022).

jack laddern.²

Brit.

/ˈdʒak ladə/, U.S.

/ˈdʒæk ˌlædər/

Origin: Formed within English, by clipping or shortening. Etymon: Jacob's ladder n.

Etymology: Shortened < Jacob's ladder n. (compare sense 2 at that entry). Compare jackstaff n.²

Nautical. Now historical.

A rope ladder. Cf. Jacob's ladder n. 2.

ΚΠ

1843 N.Y. Herald 14 Jan. 1/3 He..went on the Jack-ladder.

1895 Illustr. Amer. 12 Jan. 57/2 There wasn't even a jack ladder for us.

1945 C. B. Himes If he hollers let him Go iii. 19 I ducked through the access opening without answering, came to a manhole, went down a jack ladder to the second deck, threaded through a maze of shapes to the sheet-metal toolroom.

2013 E. Brown Cinnamon & Gunpowder xix. 226 The swimmers had made it back to the Rose and were climbing the jack ladders.

This entry has been updated (OED Third Edition, March 2018; most recently modified version published online March 2022).

单词	jack ladder
释义	jack laddern.¹ Brit. /ˈdʒak ˌladə/, U.S. /ˈdʒæk ˌlædər/ Origin: Formed within English, by compounding. Etymons: Jack n.², ladder n. Etymology: < Jack n.² (compare Jack n.² II.) + ladder n. †1. Perhaps (in a loom): a frame used for holding the heddles in place. Obsolete. rare. ΚΠ 1837 Manch. Guardian 17 June Joiners' tools, spirit level, Dobbin's jack ladders. 2. A machine used for conveying logs to the floor of a sawmill, in which the logs are carried by a continuous chain having spikes, hooks, etc., along its length; = jack chain n. 2. ΘΚΠ the world > food and drink > farming > forestry or arboriculture > lumbering > [noun] > lumbering equipment > chain for moving logs timber-chain1707 jack ladder1871 jack chain1878 1871 Daily Gaz. & Bull. (Williamsport, Pa.) 26 May 4/1 The mill..caught fire near the jack ladder. 1944 Lethbridge (Alberta) Herald 4 Mar. 13/2 Prior to the start of mill operations the pond will be flooded, and logs will be carried up to the headsaw on a jackladder. 1987 R. Solski Lumbering Community 45 The ‘jack ladder’ looks like a conveyor belt with shelves. 2008 M. Van Osch Spar Trees & Mammoth Tusks 105 A log was halfway up the jack ladder and it kind of rolled inside the trough. This entry has been updated (OED Third Edition, March 2018; most recently modified version published online March 2022). jack laddern.² Brit. /ˈdʒak ladə/, U.S. /ˈdʒæk ˌlædər/ Origin: Formed within English, by clipping or shortening. Etymon: Jacob's ladder n. Etymology: Shortened < Jacob's ladder n. (compare sense 2 at that entry). Compare jackstaff n.² Nautical. Now historical. A rope ladder. Cf. Jacob's ladder n. 2. ΚΠ 1843 N.Y. Herald 14 Jan. 1/3 He..went on the Jack-ladder. 1895 Illustr. Amer. 12 Jan. 57/2 There wasn't even a jack ladder for us. 1945 C. B. Himes If he hollers let him Go iii. 19 I ducked through the access opening without answering, came to a manhole, went down a jack ladder to the second deck, threaded through a maze of shapes to the sheet-metal toolroom. 2013 E. Brown Cinnamon & Gunpowder xix. 226 The swimmers had made it back to the Rose and were climbing the jack ladders. This entry has been updated (OED Third Edition, March 2018; most recently modified version published online March 2022). < n.¹1837n.²1843
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jack laddern.1

jack laddern.2

jack laddern.¹

jack laddern.²