Brian Law's Woodenclocks-Clock 18 Clock with Non-Circular Gears
This clock started really as a challenge to see if I could design a couple of elliptical gears to mesh together, that worked out pretty well, so I started to look at meshing gears of different sizes. Well that wasn’t so easy, took a while to sort that out, but it led of course to see if I could design the gears to give the reductions necessary to form a clock, that took a lot longer but got there in the end so this clock was born. Hardest project I have undertaken to date, but it was worth it.
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Brian is so genius
Brian you are genius ! 🙂
I really enjoyed the way you used the Escaple wheel for your Pallet finger pushers, instead of the Pallet fingers being angled…. That way your Pallet fingers are fully adjustable both ways against the Escape wheel. When doing this, does this make it more difficult to make the Escape wheel? Is the roundness of the Escape wheel a little more forgiving in this design?
By the way, excellent job. . .
superbo
superbe. ..!où peut on trouver les plans merci
like,thanks
Fantastic, show!!
Amazing and genius …Just to see this complicated machine inspired my little mind so , I come to be a cosmic creator or a comic dreamer for fun …
Hi Brian! How did you made the pendulum support?
Das ist fantastisch!
Brian my name is alan can you tell me how can I buy clock 18 with Non-Circular gears with thanks alan
hi Brian, do you also sell finished products or just the plans? just curious! great work man, this is a masterpiece.
Thank you for your answer. I agree that that the impulsarm will be somewhat retarded by the unlocking process, hopefully enough to let the pendulum go. As I tried to explain, Arnfield's idea (inertial detachment), was quite different.
Best wishes, and success,
Ben.
Brian, here are some remarks concerning your gravity escapement.
At first sight, this appears to be an improvement of Arnfield's design, because, upon unlocking,
the locking lath ROTATES away from the tooth, rather than that it is shifting PARALLEL to the
common contact surface with the tooth. Looking more closely, however, the sliding friction
problem is now shifted to the lower latch contact with the locking lever. The force pressing this
latch against the locking lever is the same as that pressing against the upper latch. So, in my
opinion, you could leave out the 5-armed latch as well, and make the locking lever contact the
escapewheel directly.
Further, the (blue) locking lever plays the role of the inertial (or neutral) arm in the Arnfield
escapement. In that escapement, however, the inertial arm is quite similar to the impulsarm,
and has the same moment of inertia (about the common axis). Therefore, upon the collision
of the impulsarm with the inertial arm, angular momentum is completely transferred to the
inertial arm, bringing the impulsarm to a sudden stop (provided it is then in its equilibrium position),
allowing the pendula to separate. Because, in your escapement, the mass, and also the inertial
moment, is much smaller than that of the impulsarm, the impulsarm does not come to an immediate
stop. It may do so, however, because it is (indirectly) stopped by the stop pin of the locking lever,
but then the unlocking of the escapewheel has already taken place (with the pendulum not yet
separated from the pendulum impulspin; you can actually see in the animation that unlocking takes
place when the pendulum is still in contact with the impulsarm).
Of course, your clock will work, but I don't think the pendulum is really free.
Kind regards,
Ben van de Waal
You should connect with Bob Bray at Sinclair Harding
Hi Brian,
What are you drinking????smoking????Great work…[good music too]…
Very cool. Functional art.
Great clock, love the idea with non circular gears… I'm fascinated of mechanical clocks and yours always are something special… I appreciate your great work…
Brilliant masterpiece!
que belleza
Muy interesante y entretenido, me gusta
i would think the irregular diameters of the gears would produce cyclical irregular impulse. how do you compensate for this? i'd guess orientation of the gears with respect to the other arbors must be observed, e.g., if the pinion on arbor A is presenting its lesser diameter to the spur gear on arbor B, then the pinion on arbor B must present its greater diameter to its respective spur gear, etc.
does any of my gobbledeegook make sense, and, if so, am i right?
KEvron
Keep going with the non-circular gears, there's a hidden unknown magic with them.
That must have been a nightmare to get right, there are quite a few noncircular gears out there, but until now I have not seen a practical use, and especially getting them to work in the riged constraints of a clock. You have my respect.
…also the shape of gear !
excellent work.
I like the improvements (bearings, pallets, secondary dial).
Fantastic job Brian! Love the organic feel to it.