https://birminghamhistory.co.uk/for...ingham-buses-part-2.39072/page-13#post-496954There is this pic of a gas powered bus in in the Birchfield Road..Perry Barr thread...
“Producer” gas plants are still in use today. Basically, a self-contained gas works, that can generate gas from wood or biomass and be use to drive an internal combustion engine. I recall there was a producer gas plant on the old science museum.The trailer behind the bus actually produced gas some discussion about them around this post
It was not for want of not trying, Birmingham Gas Dept's town gas was not under high pressure. I cannot remember the figure but I think it was 12" on a water gauge, only a couple of pounds per square inch. Also town gas does not lend itself to be compressed, like propane or butane can be. I mentioned in a previous post that the gas board invested a lot of research into ways of trying to do this.If the Birmingham Gas Dept could deliver the gas under pressure in metal cylinders why couldn't such a cylinder be fitted on/in a car instead of filling such a huge bag on the roof of the car which had the range of twenty miles. Something like a calor cylinder in the boot. I know that actual calor cylinders are butane or propane.