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clock.html
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<!DOCTYPE html><html><title>Clock</title><body>
<p>3. Escapement<br>
<p>Clockmakers like David Rittenhouse (1732-96) and Edward Duffield (1720-1801) garnered respect comparable to the
likes of political leaders Benjamin Franklin (1706-90) and Thomas Jefferson (1743-1826).</p>
<a href="https://www.amazon.com/ShoppeWatch-Mechanical-Skeleton-Silver-Leather/dp/B005ZDZ8SG">Own this I think</a>
<img src="./i/names.png" alt="" style="float:right">
Balance Spring oscillates. Anchor and escape wheel control the power release according to the "divided time."<br>
4. Display<br>
Balance Wheel<br>
1 period = the yellow dot goes from left to right and back to left. <br>
Frequency = 1 / Time for one period<br>
3600 per hour</p>
<p>Clock Escapement</p>
<p>Balance Wheel Frequency</p>
<p>For the clock in lesson 3 <br>
Tp(escape wheel) 6<br>
Ta(escape wheel) 6<br>
Tp(4th) 60<br>
Ta(4th) 6<br>
Tp(3rd) 36<br>
<img src="./i/ratio.png" style="float:right">
Ta(3rd) 7<br>
Tp(2nd) 70<br>
Ta(2nd) 10</p>
<p>Frequency = ( 70 x 36 x 60 x 6 x 2 ) /<br>
( 7 x 6 x 6 ) = 3600</p>
<p>Displacement of 70 for each each minute rotation? What is the gear train ratio(inverse)?<br>
7/70 * 6/36 = 1/60 of 70 = 42/36 =1.16666<br>
Displacement of 36 for each tooth of 15?</p>
<p><br>
What is the frequency? <br>
(70*36*60*15*2)/(7*6*8) = 13500/3600 = 3.75 rotation per sec<br>
What minute is at at the 20th Displacement? <br>
(20/70)*60=17.14<br>
PlanetaryGearTrain<br>
Adding 2 additional teeth to the sec gear? <br>
Will result in 62 seconds per minute.<br>
F = x^2 1st second has 1 tick, 2nd sec 2 so on. How many seconds have passed after 10 ticks?</p>
<p><img src="./i/ngearshaft.png" style="float:right"><img src="./i/number.png" style="float:right"></p></body>