Old British Bangers
Posted 09 March 2008 - 09:45 PM
Posted 10 March 2008 - 06:02 PM
Posted 10 March 2008 - 09:36 PM
Thanks for your reply spectrum, it's really opened my eyes to how fireworks were made in days gone by. A little off topic here but does anyone know when astra was bought out by cosmic and the reason why? My current batch of bp will be dry in a couple of days so I've started rolling some tubes and making touchpaper, the 3-2-1's will live again .
Astra were not, as far as I am aware bought out by Cosmic. The "Astra" name was in fact a trademark owned by an overseas company / investor and provided under license for use by the former owners of Astra. When the company went under thhe name couldn't be realised as an asset. I was under the impression that the Cosmic "Astra" has nothing at all to do with this trademark, I could be wrong.
Posted 11 March 2008 - 08:43 PM
Posted 12 March 2008 - 08:48 AM
Iíve made a brocks cannon, does anyone know if these were filled with fash or BP.
This page gives an excellent, nostalgic & entertaining insight into lots of old fireworks - http://www.fireworks-mag.org/news6.htm
It seems that the Brocks cannon was the same as most British bangers - from the 1920's through to the 1950's they were made with flash, then they migrated to B.P. in the late '50's or early '60's.
Posted 22 March 2008 - 10:11 PM
Posted 23 March 2008 - 01:08 AM
Posted 23 March 2008 - 10:29 AM
Edited by chris m, 23 March 2008 - 01:03 PM.
Posted 23 March 2008 - 11:08 AM
The touchpaper would be made by soaking the same paper in saturated KNO3.
I agree it isn't as reliable as visco but looks the part.
3-2-1s need a vermillion red colour on white paper.
If I recall correctly the base of the spoulettes had hardened BP to prevent the contents moving, dextrin? Spectrum might know.
Posted 23 March 2008 - 12:47 PM
Blue paper may still be used just not blue touch paper. Wrap some visco fuse in blue paper!
Keep mannequins and watermelons away from fireworks..they always get hurt..
Posted 23 March 2008 - 01:04 PM
Yes of course, the failure rate was a problem with that style of fuse and I recall any movement of the spoulette powder gave significant timimg differences.
The problem with blue touch paper was compliance with the cat 1, 2, & 3 fuse timing specifications.
Posted 23 March 2008 - 06:51 PM
Posted 24 March 2008 - 11:45 PM
to make a realistic working banger wrap visco in dark blue glued paper to make a reliable spoulette fuse. The visco end is dipped in nc laquer and whilst sticky a little bp. The blue touch paper that ignites the visco is KNO3and blue ink solution treated toilet tissue or paper towelling. Main paper case with clay plug no explanation needed i leave uncovered visco inside main case to ensure ignition of small bp charge (approx one third by volume)
Posted 14 October 2010 - 03:59 PM
Posted 14 October 2010 - 04:21 PM
the cases were weakened by a slot in the rolled case that formed a deliberate internal weakness This caused the bangers to fail a very important test -. the ability to smash an old tall pint milk bottle that they had been dropped into after ignition
Not very strong then. The biggest Swedish bangers could break bottles easily. They consisted of 0.8 grams of hard packed meal powder with bentonite plugs and many layers of paper, though they were made in China the last years, I think.
Edited by Potassium chlorate, 14 October 2010 - 04:22 PM.
used for sundry preparations, and especially for experimental
Dr. James Cutbush
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