Rules and Guidelines
Want to participate in the discussions? Please read our Community Rules and Guidelines. Need some help? Visit Support and Answers.

Options
This discussion is locked.
You cannot post a reply to this discussion. If you have a question start a new discussion

Economy 7 Time Clocks 40/50 years ago...

AncientMariner
To help resolve a query in the Ask The Community Forum, why did the time clock for Economy 7 and similar supplies with two meters and  a full load time clock switch (no contactor), tick?

Were they an auto-rewind clockwork time clock so as to keep in time during/following a power cut?

Clive

Register to replyAlready registered? Log in and reply
Parents
  • 0
    Colin Jenkins:

    Hello Ancient Mariner. I installed many of these in my days as an Electricity Board (remember them?) Contracting Dept. electrician. The two prime makes were Venner and Horstmann. Both of these had an 8-day clockwork spring reserve for the clock; this was hand-wound by key on installation. Once wound up, they all had a nice tick. I have only recently dumped my Horstmann key (it was common to both makes)! Regards, Colin.


    I also used to install these, periodically someone was sent out to to check the times & wind em up (usually a driver or meter reader) my in laws have one and no one has been near for 30 years, the time has slipped a bit and they enjoy off peak in the day now


Reply
  • 0
    Colin Jenkins:

    Hello Ancient Mariner. I installed many of these in my days as an Electricity Board (remember them?) Contracting Dept. electrician. The two prime makes were Venner and Horstmann. Both of these had an 8-day clockwork spring reserve for the clock; this was hand-wound by key on installation. Once wound up, they all had a nice tick. I have only recently dumped my Horstmann key (it was common to both makes)! Regards, Colin.


    I also used to install these, periodically someone was sent out to to check the times & wind em up (usually a driver or meter reader) my in laws have one and no one has been near for 30 years, the time has slipped a bit and they enjoy off peak in the day now


Children
No Data

Join us to get the best from IET EngX.

Joining EngX lets you personalise your experience so you stay up to date on the topics that interest you, plus you’ll be able to make connections who are looking to collaborate, exchange ideas and more.

Join us Not now

Community Rules & Guidelines