Plural space bar operated mechanism for controlling proportional escapements

Claim 1

IN A MACHINE HAVING A NORMALLY ARRESTED ESCAPEMENT MEMBER IN CONTROL OF A SPRING URGED CARRIAGE AND RELEASABLE TO EFFECT CARRIAGE MOVEMENT OVER TWO OR THREE SPACE UNITS, A FIRST AND A SECOND DEPRESSIBLE SPACE BAR LEVER, A CONTINUOUSLY DRIVEN POWER ROLL, A SINGLE ROCKABLY SUPPORTED POWER ARM, AN ECCENTRIC CAM ROLL CAM PIVOTED ON SAID POWER ARM ADAPTED WHEN ROTATED INTO ENGAGEMENT WITH SAID POWER ROLL TO ROCK SAID POWER ARM, AN ESCAPEMENT MEMBER RELEASE BAIL LINKED TO SAID POWER ARM AND OPERATIVE THEREBY, CONTROL MEANS RESPONSIVE TO DEPRESSION OF EITHER OF SAID SPACE BAR LEVERS TO ROTATE SAID CAM INTO ENGAGEMENT WITH SAID POWER ROLL, FIRST MEANS ASSOCIATED WITH SAID ESCAPEMENT MEMBER ACTUATABLE BY SAID BAIL TO EFFECT TWO UNITS OF SPACING, SECOND MEANS ASSOCIATED WITH SAID ESCAPEMENT MEMBER ADAPTED WHEN ACTUATED TO EFFECT AN ADDITIONAL UNIT OF SPACING, CONDITIONING MEANS POSITIONABLE FROM A FIRST POSITION IN THE PATH OF SAID BAIL TO A SECOND POSITION OUT OF THE PATH OF SAID BAIL, SAID CONDITIONING MEANS WHEN ACTUATED BY SAID BAIL ACTING ON SAID SECOND MEANS TO EFFECT SAID ADDITIONAL UNIT OF SPACING, MEANS DRIVE CONNECTING SAID CONDITIONING MEANS TO SAID POWER ARM TO POSITION SAID CONDITIONING MEANS TO ONE OF ITS SAID POSITIONS INCIDENT TO DEPRESSION OF SAID FIRST SPACE BAR LEVER, AND MEANS DISABLING SAID DRIVE CONNECTING MEANS INCIDENT TO DEPRESSION OF SAID SECOND SPACE BAR LEVER.