Re: Design of Cards for Campbell Stokes Sunshine Recorder
Hi Brooke, The cards have to be impregnated with a fireproofing solution or a mini bonfire may result. Tony Moss -Original Message- From: Larry McDavid lmcda...@lmceng.com To: Brooke Clarke bro...@pacific.net; Sundial Reflector sundial@uni-koeln.de Sent: Sat, 19 Apr 2014 2:02 Subject: Re: Design of Cards for Campbell Stokes Sunshine Recorder Brooke, I have a C-S sunshine recorder with slots in the arms for insert cards; the slots allow inserting the cards in two N-S positions. I have, I believe, two types of cards to fit my slots. I don't remember what each card type is meant for, however. The glass spherical ball is about 92 mm diameter. One card is 35.9 mm wide with straight sides; the other card is 30.18 mm wide with curved sides. Both cards have a blue face with white nomenclature; printing on the back is in German. If helpful, I could scan the cards. Larry On 4/18/2014 4:05 PM, Brooke Clarke wrote: Hi: I just got one of the Campbell Stokes Sunshine Recorders but it came without any of the cards. I'd like to make cards for Winter, Equinox and Summer seasons. Is there any information about doing that available It appears that each of them has a different width probably so you use the correct card in the correct slot. Winter: 38mm, Equinox: 42 mm, Summer: 33mm http://www.prc68.com/I/CampbellStokes.html -- Best wishes, Larry McDavid W6FUB Anaheim, California (SE of Los Angeles, near Disneyland) --- https://lists.uni-koeln.de/mailman/listinfo/sundial --- https://lists.uni-koeln.de/mailman/listinfo/sundial
Re: Design of Cards for Campbell Stokes Sunshine Recorder
The fireproofing is saltpetre if I remember correctly. Mike Shaw - No virus found in this message. Checked by AVG - www.avg.com Version: 2014.0.4355 / Virus Database: 3882/7365 - Release Date: 04/18/14 --- https://lists.uni-koeln.de/mailman/listinfo/sundial
Re: Design of Cards for Campbell Stokes Sunshine Recorder
I think Mike may have the wrong information. I can speak from personal (teenage) experience of making very good fireworks and soaking paper in saltpetre solution for the touch paper, which will then smoulder nicely. Saltpetre is one of the essential ingredients in gunpowder. I suspect that there are other nitrogenous compounds that have fire prevention properties, but certainly not the nitrates! Doug On 19 Apr 2014, at 11:25, jmikes...@ntlworld.com wrote: The fireproofing is saltpetre if I remember correctly. Mike Shaw No virus found in this message. Checked by AVG - www.avg.com Version: 2014.0.4355 / Virus Database: 3882/7365 - Release Date: 04/18/14 --- https://lists.uni-koeln.de/mailman/listinfo/sundial --- https://lists.uni-koeln.de/mailman/listinfo/sundial
Re: Design of Cards for Campbell Stokes Sunshine Recorder
Doug, You’re right - my memory is failing. See: http://www.wikihow.com/Make-Fireproof-Paper Mike - No virus found in this message. Checked by AVG - www.avg.com Version: 2014.0.4355 / Virus Database: 3882/7365 - Release Date: 04/18/14 --- https://lists.uni-koeln.de/mailman/listinfo/sundial
Re: Design of Cards for Campbell Stokes Sunshine Recorder
There's a very full and well-illustrated description of the Campbell Stokes sunshine recorder, with a reproduction of the equinoctial card in Handbook of Meteorological Instruments, HMSO 1956, reprinted 1961. This tells us, inter alia, that the cards are made from good quality paste board, not ordinary paper. The Meteorological Office specification lays down that their length must not change by more than 0.01 inch after immersion in water for 18 hours, and must not contract by more than 1 per cent on redrying. John Lynes On 19 April 2014 00:27, Brooke Clarke bro...@pacific.net wrote: Hi: I just got one of the Campbell Stokes Sunshine Recorders but it came without any of the cards. I'd like to make cards for Winter, Equinox and Summer seasons. Is there any information about doing that available It appears that each of them has a different width probably so you use the correct card in the correct slot. Winter: 38mm, Equinox: 42 mm, Summer: 33mm http://www.prc68.com/I/CampbellStokes.html -- Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html --- https://lists.uni-koeln.de/mailman/listinfo/sundial --- https://lists.uni-koeln.de/mailman/listinfo/sundial
Re: Design of Cards for Campbell Stokes Sunshine Recorder
I can't help adding that as youngsters we painted designs on paper using a strong saltpetre in a continuous line with a paper toy pistol 'cap' at the end of the trail. When thoroughly dried and ignited at the start, the 'picture' appeared gradually with a small 'bang' on completion. Happy days! Tony M. -Original Message- From: Douglas Bateman douglas.bate...@btinternet.com To: jmikes...@ntlworld.com CC: lmcda...@lmceng.com; bro...@pacific.net; sundial@uni-koeln.de; Tony Moss tonylindi...@talktalk.net Sent: Sat, 19 Apr 2014 11:34 Subject: Re: Design of Cards for Campbell Stokes Sunshine Recorder I think Mike may have the wrong information. I can speak from personal (teenage) experience of making very good fireworks and soaking paper in saltpetre solution for the touch paper, which will then smoulder nicely. Saltpetre is one of the essential ingredients in gunpowder. I suspect that there are other nitrogenous compounds that have fire prevention properties, but certainly not the nitrates! Doug On 19 Apr 2014, at 11:25, jmikes...@ntlworld.com wrote: The fireproofing is saltpetre if I remember correctly. Mike Shaw No virus found in this message. Checked by AVG - www.avg.com Version: 2014.0.4355 / Virus Database: 3882/7365 - Release Date: 04/18/14 --- https://lists.uni-koeln.de/mailman/listinfo/sundial --- https://lists.uni-koeln.de/mailman/listinfo/sundial
Re: Design of Cards for Campbell Stokes Sunshine Recorder
On 19/04/2014 14:40, Tony Moss wrote: I can't help adding that as youngsters we painted designs on paper using a strong saltpetre in a continuous line with a paper toy pistol 'cap' at the end of the trail. When thoroughly dried and ignited at the start, the 'picture' appeared gradually with a small 'bang' on completion. Happy days! Tony M. Do you realise that you have caused health and safety officers all over the country to have heart attacks this weekend ? -- -- Richard Mallett Eaton Bray, Dunstable South Beds. UK --- https://lists.uni-koeln.de/mailman/listinfo/sundial
Re: Design of Cards for Campbell Stokes Sunshine Recorder
Brooke, I have a C-S sunshine recorder with slots in the arms for insert cards; the slots allow inserting the cards in two N-S positions. I have, I believe, two types of cards to fit my slots. I don't remember what each card type is meant for, however. The glass spherical ball is about 92 mm diameter. One card is 35.9 mm wide with straight sides; the other card is 30.18 mm wide with curved sides. Both cards have a blue face with white nomenclature; printing on the back is in German. If helpful, I could scan the cards. Larry On 4/18/2014 4:05 PM, Brooke Clarke wrote: Hi: I just got one of the Campbell Stokes Sunshine Recorders but it came without any of the cards. I'd like to make cards for Winter, Equinox and Summer seasons. Is there any information about doing that available It appears that each of them has a different width probably so you use the correct card in the correct slot. Winter: 38mm, Equinox: 42 mm, Summer: 33mm http://www.prc68.com/I/CampbellStokes.html -- Best wishes, Larry McDavid W6FUB Anaheim, California (SE of Los Angeles, near Disneyland) --- https://lists.uni-koeln.de/mailman/listinfo/sundial
