tag:blogger.com,1999:blog-4243242266125307808.post4856479931659979340..comments2022-04-04T19:10:53.003+01:00Comments on Carl's Curios: Specific names, approximate dates please and any other info.Crowbardhttp://www.blogger.com/profile/01350188604175280097noreply@blogger.comBlogger5125tag:blogger.com,1999:blog-4243242266125307808.post-32740747668380111302015-08-30T23:32:24.561+01:002015-08-30T23:32:24.561+01:00You've swept the board Mike, apart from 2, 3 &...You've swept the board Mike, apart from 2, 3 & 4, but you probably got 4. before tea and forgot to fill it in?.<br />1. 1830 Elliot Bros. cased proportional dividers<br />2, Bar proportional dividers of a similar period, the bar allows the dividers to be <br />adjusted microscopically by the knurled wheel on the left.<br />3. is an inclinometer for measuring angle of slope<br />4. 1782 Calculating Machine of Johann Helfrich Muller (1746-1830) <br />5. The celestial clock in Bloomsbury Orrery restaurant<br />6. As you say Mike, aren't they elegant. <br />7. Ditto but to be pedantic, Mike, it is properly called a drafts-mans set<br />8. You're in the right shop, it's a centre head T-square.Crowbardhttps://www.blogger.com/profile/01350188604175280097noreply@blogger.comtag:blogger.com,1999:blog-4243242266125307808.post-35403517217795883012015-08-30T19:25:40.347+01:002015-08-30T19:25:40.347+01:00(4) Probably a device for telling the time in diff...(4) Probably a device for telling the time in different places in the world - at the same time (if you see what I mean). the whole thing to be turned by the large crank in the centre. Possibly made in England, circa 1820.<br /><br />!5) Probably a form of orrery, i.e. a clockwork model of the solar system. But if so, rather earlier than most orreries. Judging by the style of the engraving visible, made around 1590 (?)<br /><br />(6) Rather earlier pair of dividers- Germanic (or what is now Germany) circa 1650.<br /><br />(7)Early cased geometry set, circa 1760. in shagreen case.<br /><br />(8) Form of set/square, with ruler, English, circa 1890.Anonymoushttps://www.blogger.com/profile/07558857315748815249noreply@blogger.comtag:blogger.com,1999:blog-4243242266125307808.post-49763823302102973212015-08-30T18:39:42.676+01:002015-08-30T18:39:42.676+01:00(1) I'll go with Rog's name for these divi...(1) I'll go with Rog's name for these dividers. They appear to me to be circa 1820 to 1840, and in their original case.<br /><br />(2) Rather more complex dividers. Slightly later than number 1.<br /><br />(3) Some sort of spirit level. Circa 1880.<br /><br />(4)Good Gad !!!!!! Tea - back later.Anonymoushttps://www.blogger.com/profile/07558857315748815249noreply@blogger.comtag:blogger.com,1999:blog-4243242266125307808.post-15457812933888146552015-08-30T18:10:40.301+01:002015-08-30T18:10:40.301+01:00Very good partial description Rog as far as you go...Very good partial description Rog as far as you go, but your date's a bit late. Have another look.Crowbardhttps://www.blogger.com/profile/01350188604175280097noreply@blogger.comtag:blogger.com,1999:blog-4243242266125307808.post-51498605326991173992015-08-30T17:23:59.406+01:002015-08-30T17:23:59.406+01:00No 1 is "Proportional Dividers", drawing...No 1 is "Proportional Dividers", drawing instrument in brass. I would guess around 1900.Roghttps://www.blogger.com/profile/09430706557035189147noreply@blogger.com