E. Howard: Conant 4 pendulum Isochronal clock. 

Wow, way past impressive.

How ingenious - I would suggest that compared to the first clock, the improvement here must be the idea of having pendulums of different lengths, so there is less possibility of sympathetic influence.

Just this national treasure in your shop bi-metal compensatory pendulums 40 pounds each amazing stuff. Make sure you read Tinker- Written by Paul Harding

Impressive.

Also have a 1891 8 day regulator no 9 signed water bury clock co

Averaging mechanical, wow I never knew that, the difference engine, , love the vid,

Do you know if this clock has been featured in a magazine? I'd be curious to know the full schematic layout and specification of the movement.

W-O-W!

Impressive ! A separate detail video showing the whole movement would be great.

I have a ws Conant clock from pearl street new York it's a weighted clock works perfectly 4 pillar can u tell me more / Jeff in ia

Is there any extra arrangement with the motion work of a clock in clock with centre second pivoted co-auxial with hour and minute hand?.

Very nice. just a note, In your description of your videos, you can post your web address for quick access to your website. Very nice production of the video. Hope to visit your shop someday. Champ

Never seen anything like it.

So why didn't Conant's isochronal design become common among precision pendulum clocks? I wonder if it comes down to: 1. Was the theoretical 16-fold reduction in erro as much as what could be gained from air pressure compensation and free escapements that were adopted by the mainstream of regulator development? 2. If a normal astro regulator was $200 and this four-pendulum model was $1,600, why not just buy four normal regulators and average them by hand? 3. The mechanical complexity; perhaps it led to unreliability, and incurred in its own timekeeping problems? 4. The irregular movement of the averaged seconds hand is just weird