tympn.

/tɪmp/

Forms: Also 1600s timpe, timp.

Etymology: apparently an abbreviation of tympan n. So French tympe, timpe.

a. The mouth of the hearth of a blast furnace, through which the molten metal descends; formed by an arch of masonry (tymp-arch), or a block of stone or iron (tymp-stone, tymp-plate), or by two of these together.

ΘΚΠ

society > occupation and work > equipment > furnace or kiln > furnace > parts of furnace > [noun] > openings for metal or crucible

tympa1650

working arch1824

tap-hole1825

working door1839

tapping-hole1861

slag notch1882

a1650 G. Boate Irelands Nat. Hist. (1652) xvii. 138 The [melted] Iron..descendeth to the lowest part of the furnace, called the Hearth; the which being filled..they unstop the Hearth, and open the mouth thereof (or the Timp as the Arts-men call it).

1686 R. Plot Nat. Hist. Staffs. iv. 162 Which four walls have the following names; that next the bellows, the tuarn or tuiron wall; that against it, the wind-wall or spirit-plate; that where the Metall comes out, the Timp or fore plate; that over against it, the back-wall.

1859 R. Hunt Guide Mus. Pract. Geol. (ed. 2) 195 A strong blast of air is..injected through tuyeres.., which are fixed in holes just above the level of the tymp, or block of sandstone which is adjusted at the base of the furnace.

b. attributive, as tymp arch, tymp plate, tymp stone, tymp stopping.

ΚΠ

1665 D. Dudley Mettallum Martis sig. D7 The Founder['s] terms,..as the Timpe stones, the Wind-wall stones,..the Boshes.

1825 ‘J. Nicholson’ Operative Mechanic 331 Tymp-stone..Tymp-plate [both printed Lymp-].

1839 A. Ure Dict. Arts 691 [Iron blast furnace] Fig. 584 represents the hearth and boshes..a is the tymp stone, and b the tymp plate for confining the liquid metal in the hearth... The space under the tymp plate..is rammed full, for every cast, with strong loamy earth, or even fine clay; a process called the tymp stopping.

1876 R. Routledge Discov. 19th Cent. 29 The glassy looking slags..continually flowing over the tympstone.

1881 Trans. Amer. Inst. Mining Engineers 1880–1 9 188 Tymp, a hollow iron casting, cooled interiorly by a current of water, and placed to protect the tymp-arch, or arch over the dam, in a blast furnace having a fore-hearth.

2. Coal Mining. A horizontal piece of timber for supporting the roof; also called bar, cap, or lid.

ΘΚΠ

society > occupation and work > equipment > mining equipment > [noun] > pit supports

yoking1653

set1830

crib1839

tub1839

wedging crib1839

cribbing1841

ring crib1849

tack1849

tymp1883

1883 in W. S. Gresley Gloss. Terms Coal Mining

This entry has not yet been fully updated (first published 1916; most recently modified version published online December 2020).

单词	tymp
释义	tympn. /tɪmp/ Forms: Also 1600s timpe, timp. Etymology: apparently an abbreviation of tympan n. So French tympe, timpe. 1. a. The mouth of the hearth of a blast furnace, through which the molten metal descends; formed by an arch of masonry (tymp-arch), or a block of stone or iron (tymp-stone, tymp-plate), or by two of these together. ΘΚΠ society > occupation and work > equipment > furnace or kiln > furnace > parts of furnace > [noun] > openings for metal or crucible tympa1650 working arch1824 tap-hole1825 working door1839 tapping-hole1861 slag notch1882 a1650 G. Boate Irelands Nat. Hist. (1652) xvii. 138 The [melted] Iron..descendeth to the lowest part of the furnace, called the Hearth; the which being filled..they unstop the Hearth, and open the mouth thereof (or the Timp as the Arts-men call it). 1686 R. Plot Nat. Hist. Staffs. iv. 162 Which four walls have the following names; that next the bellows, the tuarn or tuiron wall; that against it, the wind-wall or spirit-plate; that where the Metall comes out, the Timp or fore plate; that over against it, the back-wall. 1859 R. Hunt Guide Mus. Pract. Geol. (ed. 2) 195 A strong blast of air is..injected through tuyeres.., which are fixed in holes just above the level of the tymp, or block of sandstone which is adjusted at the base of the furnace. b. attributive, as tymp arch, tymp plate, tymp stone, tymp stopping. ΚΠ 1665 D. Dudley Mettallum Martis sig. D7 The Founder['s] terms,..as the Timpe stones, the Wind-wall stones,..the Boshes. 1825 ‘J. Nicholson’ Operative Mechanic 331 Tymp-stone..Tymp-plate [both printed Lymp-]. 1839 A. Ure Dict. Arts 691 [Iron blast furnace] Fig. 584 represents the hearth and boshes..a is the tymp stone, and b the tymp plate for confining the liquid metal in the hearth... The space under the tymp plate..is rammed full, for every cast, with strong loamy earth, or even fine clay; a process called the tymp stopping. 1876 R. Routledge Discov. 19th Cent. 29 The glassy looking slags..continually flowing over the tympstone. 1881 Trans. Amer. Inst. Mining Engineers 1880–1 9 188 Tymp, a hollow iron casting, cooled interiorly by a current of water, and placed to protect the tymp-arch, or arch over the dam, in a blast furnace having a fore-hearth. 2. Coal Mining. A horizontal piece of timber for supporting the roof; also called bar, cap, or lid. ΘΚΠ society > occupation and work > equipment > mining equipment > [noun] > pit supports yoking1653 set1830 crib1839 tub1839 wedging crib1839 cribbing1841 ring crib1849 tack1849 tymp1883 1883 in W. S. Gresley Gloss. Terms Coal Mining This entry has not yet been fully updated (first published 1916; most recently modified version published online December 2020). < n.a1650
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