Abstract: An automatic keyboard operator including a plurality of carriers located over the keys of a keyboard, each carrier having a depending depressor for engaging a respective key and an upstanding tab for engagement by an actuator, the actuator being prearranged to engage preselected tabs for depressing corresponding keys.
Abstract: A fluid transfer device including a casing having a fluid port, a flexible wall container in the casing and communicating exteriorly thereof through the fluid port, a resiliently biased plunger in the casing urged toward the container for collapsing the latter and expelling fluid through the port, and valved discharge means for selectively controlling fluid discharge through the port.