RMweb Premium uax6 Posted January 15 RMweb Premium Share Posted January 15 26 minutes ago, D7063 said: Hey, that was an interesting read that sent me down a bit of a rabbit hole. I'm amazed that these circuits could maintain a stable frequency with the primitive components available - I wonder how they would have calibrated them, I'm guessing this was before the days of oscilloscopes? Possibly with something as simple as a tuning fork.... We used to use tuning forks with 'shutters' on them to check the speed of pulsing machines in telephone exchanges... Andy G 1 1 1 Link to post Share on other sites More sharing options...
D7063 Posted January 15 Author Share Posted January 15 2 minutes ago, uax6 said: Possibly with something as simple as a tuning fork.... We used to use tuning forks with 'shutters' on them to check the speed of pulsing machines in telephone exchanges... Andy G Cheers Andy - I couldn't for the life of me think what they might have used! Link to post Share on other sites More sharing options...
Nearholmer Posted January 15 Share Posted January 15 (edited) Here’s the paper that goes into more depth https://outsideecho.com/DGT-BIO_files/PDFs/DGT126.pdf You need to read both the website and the paper, and compare what they say, because the differ a bit on the order of events and the applications of the system. Edited January 15 by Nearholmer 2 Link to post Share on other sites More sharing options...
MartinRS Posted January 23 Share Posted January 23 I hope this is not too far off topic. It's for railway services rather than railway equipment and was published in an 1845 directory of Sheffield. 6 Link to post Share on other sites More sharing options...
RMweb Premium spamcan61 Posted January 23 RMweb Premium Share Posted January 23 1 minute ago, MartinRS said: I hope this is not too far off topic. It's for railway services rather than railway equipment and was published in an 1845 directory of Sheffield. every font known to man apart from comic sans 1 3 Link to post Share on other sites More sharing options...
MartinRS Posted January 23 Share Posted January 23 (edited) 7 hours ago, spamcan61 said: every font known to man apart from comic sans Here are some more fonts from the same 1845 publication! My grandfather worked at Davy United as a metal spinner putting the finishing touches to ships' propellers: heavy precision engineering. Edited January 23 by MartinRS Spelling 8 Link to post Share on other sites More sharing options...
MartinRS Posted January 23 Share Posted January 23 Another 1845 Sheffield manufacturer of railway equipment. Nice to see a cloth cap maker as well! 6 Link to post Share on other sites More sharing options...
Nearholmer Posted January 23 Share Posted January 23 (edited) I wonder why there was sufficient demand for Brazilian Grass Hats that they merited a mention. It’s not a form of headgear that leaps to mind when you think of Yorkshire, is it? Maybe though, all that stuff about Ilkley Moor was down to the loss of a Brazilian Grass Bowler, or some such. Edited January 23 by Nearholmer 2 2 Link to post Share on other sites More sharing options...
MartinRS Posted January 23 Share Posted January 23 I have just noticed the same picture of a locomotive in two of the above adverts. There must have been some sort of an engraved images library, a precursor to stock photography perhaps? 2 1 Link to post Share on other sites More sharing options...
MartinRS Posted January 23 Share Posted January 23 Here it is again. 7 Link to post Share on other sites More sharing options...
Nearholmer Posted January 23 Share Posted January 23 6 minutes ago, MartinRS said: There must have been some sort of an engraved images library, Yes, standard blocks, you’ll spot them on C18th and early-C19th posters for all sorts of things. 2 2 Link to post Share on other sites More sharing options...
MartinRS Posted January 23 Share Posted January 23 Thanks for the information. I also found the same image in Drake's Road Book of the Sheffield and Rotherham Railway from 1840. 7 Link to post Share on other sites More sharing options...
RMweb Premium spamcan61 Posted January 23 RMweb Premium Share Posted January 23 1 minute ago, MartinRS said: Thanks for the information. I also found the same image in Drake's Road Book of the Sheffield and Rotherham Railway from 1840. they've done some interesting mods. to the loco in that one! 1 Link to post Share on other sites More sharing options...
MartinRS Posted January 23 Share Posted January 23 (edited) Here's another from Drake's Road Book. I have read claims that Dodds created the modern turnout and the locomotive turntable, expanding boilers and sprung buffers. Before the OS 'Old Maps' site went off-line there was a map showing a locomotive turntable at the end of the Sheffield Wicker platforms where you would expect to see the buffers. (I have seen photos of a similar set-up at a coastal station with an engine hanging out of the station having failed to stop! I'm not sure what a pre-Dodds turnout looked like. Edited January 23 by MartinRS Station name. Opps! 6 Link to post Share on other sites More sharing options...
MartinRS Posted January 23 Share Posted January 23 16 minutes ago, spamcan61 said: they've done some interesting mods. to the loco in that one! My mistake. Looking again they are different! 2 1 Link to post Share on other sites More sharing options...
RMweb Premium spamcan61 Posted January 23 RMweb Premium Share Posted January 23 2 minutes ago, MartinRS said: My mistake. Looking again they are different! Could turn it into a spot the difference competition 3 Link to post Share on other sites More sharing options...
MartinRS Posted January 23 Share Posted January 23 (edited) The wagons are also different though I would say one is a copy of the other? Or it could be the same wagon with one made by Peco, the other by Hornby!!! Edited January 23 by MartinRS typo 3 Link to post Share on other sites More sharing options...
D7063 Posted January 23 Author Share Posted January 23 4 hours ago, MartinRS said: Here's another from Drake's Road Book. I have read claims that Dodds created the modern turnout and the locomotive turntable, expanding boilers and sprung buffers. Before the OS 'Old Maps' site went off-line there was a map showing a locomotive turntable at the end of the Sheffield Wicker platforms where you would expect to see the buffers. (I have seen photos of a similar set-up at a coastal station with an engine hanging out of the station having failed to stop! I'm not sure what a pre-Dodds turnout looked like. Martin, these are amazing - thankyou for posting!!!!! 1 Link to post Share on other sites More sharing options...
RMweb Premium kevinlms Posted January 24 RMweb Premium Share Posted January 24 9 hours ago, MartinRS said: The wagons are also different though I would say one is a copy of the other? Or it could be the same wagon with one made by Peco, the other by Hornby!!! See there's historic reference to the idea of making models, using generic parts, like Tri-ang did! 1 Link to post Share on other sites More sharing options...
RMweb Premium Jeremy Cumberland Posted January 24 RMweb Premium Share Posted January 24 15 hours ago, Nearholmer said: I wonder why there was sufficient demand for Brazilian Grass Hats that they merited a mention. It’s not a form of headgear that leaps to mind when you think of Yorkshire, is it? Maybe though, all that stuff about Ilkley Moor was down to the loss of a Brazilian Grass Bowler, or some such. Panama hats. Cricket. Yorkshire. 1 Link to post Share on other sites More sharing options...
RMweb Premium Jeremy Cumberland Posted January 24 RMweb Premium Share Posted January 24 15 hours ago, spamcan61 said: they've done some interesting mods. to the loco in that one! It's fairly typical for an illustration of a late Rocket class, but surely ten years out of date for the Birmingham and Derby Junction Railway. Link to post Share on other sites More sharing options...
BernardTPM Posted January 24 Share Posted January 24 8 hours ago, Jeremy Cumberland said: It's fairly typical for an illustration of a late Rocket class, but surely ten years out of date for the Birmingham and Derby Junction Railway. That sort of 'out of date' printing block was obvious in Yellow Pages too. Bedford TK removal vans still featured heavily in the early 2000s. 1 2 Link to post Share on other sites More sharing options...
RMweb Premium 4069 Posted January 24 RMweb Premium Share Posted January 24 23 hours ago, MartinRS said: Before the OS 'Old Maps' site went off-line there was a map showing a locomotive turntable at the end of the Sheffield Wicker platforms where you would expect to see the buffers. Now online from the National Library of Scotland instead https://maps.nls.uk/view/231282237 1 Link to post Share on other sites More sharing options...
MartinRS Posted January 24 Share Posted January 24 53 minutes ago, 4069 said: Now online from the National Library of Scotland instead https://maps.nls.uk/view/231282237 Thanks for the link. I always forget about the National Library of Scotland maps having become so used to the OS Old Maps site. I have just noticed what appear to be wagon turntables in the MR station train-shed. If the map was surveyed 1851 this would have been in use as a passenger station. (It became a goods station in 1870). I wonder what roll the wagon turntables played in stock movements? Perhaps short-wheelbase coaches used them? Link to post Share on other sites More sharing options...
Nearholmer Posted January 24 Share Posted January 24 (edited) 10 hours ago, Jeremy Cumberland said: Panama hats. Cricket. Yorkshire. Hmmm …… we really need a millinery historian, but from what I can work out Panama hats didn’t get here until a fair bit later, popularised first in the USA. The smart gents’ sun hat for a large part of C19th was the straw boater …….. maybe the best ones were made from imported grass! Maybe those rather elegant ladies’ sun hats? Edited January 24 by Nearholmer 1 Link to post Share on other sites More sharing options...
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