I would just like to say

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Stanleysteamer said:
It's like the impulse generator in pneumatics. Enots invented one and it was so obvious and honestly a lot like a differential pressure stopcock in many ways. Yet none of our competitors at the time had one in their range. Made my life easy!
Things have prolly changed though since 1976!!
Click to expand...
Simlar yes, though the impulse generator would be more like a delay off timer in electrics, you has to zero the inlet pressure (or at least the pressure on port 12, if present) to reset it. The flowmaster is closer to a pilot operated sol valve imo. Flow over the diaphragm = open. No flow = closed. The area under the diaphragm is larger so the flow effectively forces the valve open until you close the pilot, which has a spring to give it a hand. Not much overall force in the end , which is why you need half a bar diff. to make em work.

The IP was a great step forward and simplified pneumatic logic no end.
Ironically, looked down on by purists back in the day.

Did i just do a "Stan" ? 😁

Nighty night..
 
Turktowner said:
Simlar yes, though the impulse generator would be more like a delay off timer in electrics, you has to zero the inlet pressure (or at least the pressure on port 12, if present) to reset it. The flowmaster is closer to a pilot operated sol valve imo. Flow over the diaphragm = open. No flow = closed. The area under the diaphragm is larger so the flow effectively forces the valve open until you close the pilot, which has a spring to give it a hand. Not much overall force in the end , which is why you need half a bar diff. to make em work.

The IP was a great step forward and simplified pneumatic logic no end.
Ironically, looked down on by purists back in the day.

Did i just do a "Stan" ? 😁

Nighty night..
Click to expand...
Being able to send a short signal to another valve down an airline with no need to do anything else, no air to lose, no reset to do, no springs or owt else to worry about, to simply switch it, made it so much easier for mugs like me who had to design circuits!
Ideal in dodgy environments where using electrics to do the same would have been a no-no.

I vaguely remember the sub-circuit you would have to build to do the same thing in other makes like Schrader or Martonair, who were our big competitors at the time. Flipping nightmare. Hee Hee! 🤣 🤣
 
Getting myself a new toolbox.......... :cool: :cool:
1729806341796.png
 
Turktowner said:
Simlar yes, though the impulse generator would be more like a delay off timer in electrics, you has to zero the inlet pressure (or at least the pressure on port 12, if present) to reset it. The flowmaster is closer to a pilot operated sol valve imo. Flow over the diaphragm = open. No flow = closed. The area under the diaphragm is larger so the flow effectively forces the valve open until you close the pilot, which has a spring to give it a hand. Not much overall force in the end , which is why you need half a bar diff. to make em work.

The IP was a great step forward and simplified pneumatic logic no end.
Ironically, looked down on by purists back in the day.

Did i just do a "Stan" ? 😁

Nighty night..
Click to expand...
I have tried to find an image of what we used to sell back then, just can't.
It looked basically like a fat little brass cylinder.
The little piston inside it had a wider surface area at one end than the other and there was a thin drilling that went all the way through it.
When it was operated or actioned , momentarily, (i.e. zeroing it soon after) air went into the smaller chamber and out the other side to whatever was going to get the impulse. Meanwhile air passed down the drilling into the slightly bigger chamber where the bigger surface meant that that end pushed the cylinder back to where it started, cutting off the signal air and resetting itself until it was operated again.
This happened in nearly no time at all. Beautiful in its simplicity. I think I have oversimplified this a bit but it is broadly how it worked.

I have no idea what "port 12 " is! I suppose this must be on a much more modern version of it. I haven't touched pneumatics since 1976!

So this is for anyone who has no idea of what I am on about. sorry I can't put a pic up.

And yes you did just do a STAN! Don't let the fame get to you!!! 🤣 🤣 🤣
 
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DanClarke said:
...that the dreaded "Smart Meters" have been installed today.
The little "In Home Display" tells me that I am using 600w and it will cost 15p/hour at this rate.
I wonder how accurate the "shunt" is?
Click to expand...
One would hope they din't have a shunt to avoid loss, even a little bit. Measuring like a clamp meter does instead. Precision should be quite good. Does yer have yer own meter to measure the currunts and volts? Modern leccy meters charge a bit more if yer gorra lot of inductive loads.
 
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