OK, I'm your typical "Old Codger"! Used these all the time when I did my apprenticeship on good old British Rail. They were used where high current starting loads (especially DC) were experienced. The big ass winding carries the load and acts as an electro-magnet. inside this there is an armature which, when the coil is energised, moves within that in one direction to act on a circuit breaker. Attached to this armature is a disc which sits in the oil dashpot. The oil slows the movement of the disc / armature against the current flow which prevents tripping of the circuit breaker on startup. If the current remains high due to a fault the armature will move fully thus activating the circuit breaker. The disc frequently had adjustable holes to alter the rate at which it could move. Those were happy days! Free from electronics which I did not (and still do not) understand!
Yeah I’ve seen this in action(as in motors) I was putting extraction fans in some vans! And when I put a 15amp in it’s always popped due to the current draw spike. I love electrics very interesting stuff cheers Jamie hope you are all doing good 👍
Im an electrician in NYC and was working in a switch gear room where they had oil jars connected to the switches and was told they were dashpot circuit breakers. It was like Frankensteins laboratory.
Heater over loads all over our site! Still replace the heater elements. Old 1972 Lawrence Scott boards still going strong! Although now under a replacement scheme.
I've got the OK to take one of the heater overloads when the MCC gets ripped out. Will post a comment on your latest video at that time, if your still wanting one. Will have had heavy use since 1972 to date. Get something sorted regarding shipping it. Your not far away from my location I think.
@@MadScientist267 The SU used the dash pot to dampen the piston movement when the suction sought to raise it to withdraw the needle from the jet. The Stromberg was similar, except it had a rubber diaphragm instead of just a machined piston.
@@jankcitycustoms Yep, real MGs like the older MG TD, or the MGB (which I had - really solid 5 bearing crank engine). Many British cars had these, Austin/Morris/Jaguar - ever tried balancing twin SUs using only a tube between the intakes and your ear! It works!
@herrtomas6729 I prefer that way instead of fiddling around with the wires. funny you mention it though. I actually just learned that trick a couple years ago from an old MG workshop manual, I don't remember what one.
OK, I'm your typical "Old Codger"! Used these all the time when I did my apprenticeship on good old British Rail. They were used where high current starting loads (especially DC) were experienced. The big ass winding carries the load and acts as an electro-magnet. inside this there is an armature which, when the coil is energised, moves within that in one direction to act on a circuit breaker. Attached to this armature is a disc which sits in the oil dashpot. The oil slows the movement of the disc / armature against the current flow which prevents tripping of the circuit breaker on startup. If the current remains high due to a fault the armature will move fully thus activating the circuit breaker. The disc frequently had adjustable holes to alter the rate at which it could move. Those were happy days! Free from electronics which I did not (and still do not) understand!
Very cool. Reliable and long lasting. We should return to that type of reliability.
I forgot to mention it was the Empire State Building.
Yeah I’ve seen this in action(as in motors) I was putting extraction fans in some vans! And when I put a 15amp in it’s always popped due to the current draw spike. I love electrics very interesting stuff cheers Jamie hope you are all doing good 👍
Im an electrician in NYC and was working in a switch gear room where they had oil jars connected to the switches and was told they were dashpot circuit breakers. It was like Frankensteins laboratory.
Now throw love to see
Heater over loads all over our site! Still replace the heater elements. Old 1972 Lawrence Scott boards still going strong! Although now under a replacement scheme.
Granola ones going sore
That's spun my sweed! 😂
Oil dash pot overload. Came across a lot of them when I worked in the coal mines.
Thermal overload relay.. not seen one in years .. good find
It damps the motion of the solenoid to provide a delay.
In a nutshell, this is a magnetic circuit breaker.
I've got the OK to take one of the heater overloads when the MCC gets ripped out. Will post a comment on your latest video at that time, if your still wanting one. Will have had heavy use since 1972 to date. Get something sorted regarding shipping it. Your not far away from my location I think.
Still got one in use on a water pump!
Is it a flux capacitor???
Yes, if you put it up your bum-bum you can travel through time 😅
Fun memories, next you'll be serving an oil circuit break.Spent many hours changing oil and cleaning out
If I could get my hands on one I would
OK, I'm looking.
The oil dashpot reminds me of the "SU carburettors" from when we used to drive real cars!
Carbs used a dashpot to dampen the throttle closing
@@MadScientist267 The SU used the dash pot to dampen the piston movement when the suction sought to raise it to withdraw the needle from the jet. The Stromberg was similar, except it had a rubber diaphragm instead of just a machined piston.
that was the first thing I thought of too. I still work on su carbs today. on some MG's that were brought to the u.s.
@@jankcitycustoms Yep, real MGs like the older MG TD, or the MGB (which I had - really solid 5 bearing crank engine).
Many British cars had these, Austin/Morris/Jaguar - ever tried balancing twin SUs using only a tube between the intakes and your ear! It works!
@herrtomas6729 I prefer that way instead of fiddling around with the wires. funny you mention it though. I actually just learned that trick a couple years ago from an old MG workshop manual, I don't remember what one.
How would you test these? Seems lots to setup and therefore lots that can be setup wrong
Totally reliant on mats and proper items and oils and holes used
Oil dash pot? 👀
dash pot overload on most motor switch gear