408 Remontoire Escapement for an Astronomical Clock. 
giand hj, two remontoire weights, with pivots at g and 4h, 
and rollers at 7 and 7. 
n, the pendulum guide, with two arms nk and nl, ex- 
tending down to reach the rollers of the remontoire weights. 
ef, pair locking pallets attached to the arbor of the pendulum 
guide, to lock the leverd f. (The axis m of the pendulum guide 
coincides with that about which the pendulum vibrates. ) 
3. 
2. 
m a f a 
e—IF ane Oo 
eacccammmann wes BE 
00 op ‘ 
(—— 
@) 
la 
—1 Fy | 
‘ é 
= Pe 
’ > 
Fig. 3 shows a side view; rs part of the gridiron pendulum; 
n q the fork of the pendulum guide passing through an aperture 
“s plate. The other letters show the same parts as in figs. | 
and 2. 
Fig. 1. It will be seen that, as the wheel is urged forward in 
the direction a b, the pressure of a tooth against the inclined plane 
of the pallet a, would causé it to move out of the way, if the 
opel es ea a 2 
i¢ 
Fe ae 4 7 ; ‘A wi 
the roller j; from the point of the tooth on which it rests 
