5. The hold in the stops can be increased or diminished to any practical extent by reason of the inverted impulse arms.

6. Less affected by any disturbing forces of the train in proportion to the pressure on the stops.

7. Will bear more weight and give more power to the train without increasing the arc of oscillation.

8. No possibility of tripping under any increase of motive power.

9. The minimum arc of vibration to unlock is 8-tenths of a degree. Other escapements of similar construction require from 4° to 7°.

10. Take less weight for the motive power in proportion to the difference of pressure and draught on the lockings.

11. Unlocks by gravitation instead of by the pendulum and at the time of impulse.

12. Requires no fly nor remontoir, and thus reduces the weight of the motive power by one half.

13. The impulse giving motion to the pendulum increases as the force of gravity on the pendulum decreases. A great advantage over those escapements in which the unlocking is done by the pendulum when its momentum is nearly expended and at the extremity of its arc of vibration.

14. The angle of the detent planes can be set so as not only to offer no resistance to the unlocking, but to give an actual impulse in the same manner as the impulse pallets of a dead escapement. This completely frees the impulse which gives motion to the pendulum from any retarding influence of the train.