File:Smoke-jack.jpg

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Summary

Description
English: Drawing of a smoke-jack. SMOKE-JACK is an engine used for the same purpose as the common jack; and is so called from its being moved by means of the smoke, or rarefied air, ascending the chimney, and striking against the sails of the horizontal wheel AB (plate XII. fig. 1.), which being inclined to the horizon, is moved about the axis of the wheel, together with the pinion C, which carries the wheels D and E; and E carries the chain F, which turns the spit.

The wheel AB should be placed in the narrow part of the chimney, where the motion of the smoke is swiftest, and where also the greatest part of it must strike upon the sails. --The force of this machine depends upon the draught of the chimney, and the strength of the fire.

Smoke-jacks are sometimes moved by means of spiral flyers coiling about a vertical axle; and at other times by a vertical wheel with sails like the float-boards of a mill: but the above is the more customary construction.
日本語: スモーク・ジャックの手書き図版。
Date Uploaded at 16:04, 1 October 2007 to ENWP. Revised at 16:11, 1 October 2007.
Source
Author Uploader to ENWP is w:en:user:ZoneAlarm5. Revisor in ENWP is w:en:DrJunge.
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Original upload log

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  • 2008-12-22 08:47 DrJunge 526×719× (215263 bytes)
  • 2007-10-01 16:04 ZoneAlarm5 534×719× (206989 bytes) Plate XII, fig 1. from Gregory's Treatise on Mechanics; from Google Books: http://books.google.com/books?id=t3E1AAAAMAAJ&dq=editions:0AA-I9DYci7kCIX4hu

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Date/TimeThumbnailDimensionsUserComment
current17:03, 10 September 2012Thumbnail for version as of 17:03, 10 September 2012526 × 719 (210 KB)OgreBot(BOT): Uploading old version of file from en.wikipedia; originally uploaded on 2008-12-22 08:47:30 by DrJunge
17:02, 10 September 2012Thumbnail for version as of 17:02, 10 September 2012534 × 719 (202 KB)OgreBot(BOT): Uploading old version of file from en.wikipedia; originally uploaded on 2007-10-01 16:04:33 by ZoneAlarm5
12:07, 6 May 2009Thumbnail for version as of 12:07, 6 May 2009438 × 599 (50 KB)Five-toed-sloth{{Information |Description={{en|1=Drawing of a smoke-jack.}} {{ja|1=スモーク・ジャックの手書き図版。}} |Source=*Gregory, Olinthus (1821). A Treatise of Mechanics. Plates. London: F.C. and J. Rivington. pp. Vol II., Plate XII, Fig 1. http:/
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