Recent content by Phil Burman

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    Merlin Band clock

    Hi Kenneth, I planned to build a Merlin Band clock some years ago and purchased the construction manual. It soon became clear that one of the challenges was going to be the gear/worm drive so I decided on a bit research, studying all information I could find on the internet I came across the...
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    Help Long Case Clock - Hour Hand Rotates Freely?

    Hello folks, I could use a little help with regard to an English long case clock belonging to a friend and neighbour. The hour hand is currently loose on the hour pipe and rotates freely. It looks as if the hour hand should be a press fit over the second annular ring on the end of the hour pipe...
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    1 second Regulator- state of play

    Hello Sharukh I'm happy to explain but it is potentially a big subject. It would help if you could detail your current level of understanding of barometric and temperature compensation as it relates to clock precision? Phil
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    1 second Regulator- state of play

    Barometric compensation is via a 2 cell barometric capsule suspended on the bottom of the pendulum rod with the compensating weight directly under. Temperature compensation is via the 3 brass rods supporting the ring on which the bob sits. The suspension is repurposed from my experimental clock...
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    1 second Regulator- state of play

    It’s been some time since I have posted my progress and since then I have taken what I have learnt with my experimental clock and built a new movement suited to a 12” dial. here’s a picture of the movement and a recent graph of the clocks deviation from the correct time over 31 days. The time...
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    Riefler Pendulum Bob turning

    Hi John, a pin at the lower entry point would have to pass though the compensating sleeve in order to locate the bob relative to the pendulum rod, so the compensating sleeve would also require slotting. Initially it looked like a more logical location for the pin would be at the top entry point...
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    #5 Regulator progress

    With regard to positioning the movement relative to the pendulum I found it difficult to achieve all the necessary tolerances in order to accurately position the pallet arbor in relation to the suspension spring. I ended up including slots in the support bracket movement clamping holes, for...
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    #5 Regulator progress

    Philip Woodward discusses the issues related to suspension springs at some length in "Woodward on Time - Group 5 Pendulums and their suspensions - sections 2 and 5" Phil
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    #5 Regulator progress

    Coming along really nicely and looking like a great piece of work. I'm curious as to what friction arrangement you have used to allow for hand setting. Phil
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    My rendition of Allan Wolffs' skeleton clock

    I started the build at the beginning of July 2014 and completed it in October 2017. Although there are still things I would like to improve. The clock was 85% complete within 9 months of starting, with approximately 500 hours work performed. As this was my first clock I was keen to prove to...
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    My rendition of Allan Wolffs' skeleton clock

    I thought you guys might like to see a video of my skeleton clock. It's looking a little dull after 2 years but was given no protective coating so some further finishing and polishing is in order. I rather like the antique look but it still needs to have a bit of sparkle. Phil
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    Use of aluminum for clock plates

    Ooops forgot to include the link: 1 second Regulator- state of play Phil
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    Use of aluminum for clock plates

    Have a look in this thread. Phil
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    Use of aluminum for clock plates

    Aluminium plates work just fine. I used them, together with aluminum pillars, in my prototype strasser regulator as per the attached photo.
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    Hot Hyde Glue Pot

    I recently bought one of these, it works perfectly. The temperature controller goes over-temperature for rapid melt then settles down to a very steady temperature control, see plot below. Of course they are also available in the USA. I was initially concerned about the over-temp start-up so I...
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How to wire a 24 volt secondary for a 12 volt ITR/IBM Master clock system by Toughtool