Abstract: The invention relates to new bicyclo(2.2.1)heptane derivatives of the general formula I ##STR1## wherein R represents a C.sub.1-12 alkyl group optionally substituted by a lower alkoxy group, a C.sub.2-4 alkenyl group or a phenyl-(lower alkyl) group optionally substituted on (I), phenyl ring by one or more lower alkoxy groups or halogen atoms.The invention relates further to plant growth regulating compositions comprising as active agent 0.001 to 95% by weight of a racemic and/or optically active compound of the general formula I, wherein R has the above defined meanings, along with a conventional organic or inorganic, solid and/or liquid carrier and/or filler and/or diluent and/or surfactant.

Abstract: The invention relates to new bicyclo(2.2.1)heptane derivatives of the general formula I ##STR1## wherein R represents a C.sub.1-12 alkyl group optionally substituted by a lower alkoxy group, a C.sub.2-4 alkenyl group or a phenyl-(lower alkyl) group optionally substituted on the phenyl ring by one or more lower alkoxy groups or halogen atoms.The invention relates further to plant growth regulating compositions comprising as active agent 0.001 to 95% by weight of a racemic and/or optically active compound of the general formula I, wherein R has the above defined meanings, along with a conventional organic or inorganic, solid and/or liquid carrier and/or filler and/or diluent and/or surfactant.

Abstract: A gas turbine comprising a housing having a chamber of generally cylindrical periphery, a rotor mounted for rotation in the chamber, and a stator wall at one end of the chamber. The rotor has an end face in rotary sealing relationship with the stator wall and a peripheral surface in rotary sealing relationship with the periphery of the chamber. The rotor further has a plurality of recesses around its periphery, each recess extending radially into the rotor from the peripheral surface thereof and having a passage extending to the end face thereof. The housing has an inlet directing gas under pressure into the recesses. The stator wall blocks each passage at the end face for a part of a revolution of the rotor to hold the gas in the recesses for compression and is ported for exit of gas from each recess via its passage as the rotor rotates through another part of its revolution for expansion of the gas and resultant impulsing of the rotor.

Abstract: A gas turbine comprising a housing having a chamber of generally cylindrical periphery, a rotor mounted for rotation in the chamber, and a stator wall at one end of the chamber. The rotor has an end face in rotary sealing relationship with the stator wall and a peripheral surface in rotary sealing relationship with the periphery of the chamber. The rotor further has a plurality of recesses around its periphery, each recess extending radially into the rotor from the peripheral surface thereof and having a passage extending to the end face thereof. The housing has an inlet directing gas under pressure into the recesses. The stator wall blocks each passage at the end face for a part of a revolution of the rotor to hold the gas in the recesses for compression and is ported for exit of gas from each recess via its passage as the rotor rotates through another part of its revolution for expansion of the gas and resultant impulsing of the rotor.