Spindle drive with expansible chamber motors

A power system comprising:

• a shaft which contains at least one spiral groove on the outer surface thereof;
• a sleeve concentrically mounted on said shaft,
• a projection emanating from the inner surface of the sleeve and in operative engagement with said groove, such that reciprocation of said sleeve causes rotation of said shaft;
• an expansible chamber motor consisting of a housing, a first fluid within said housing;
• and
• an electrical resistance wire passing through said first fluid whereby upon energization of said wire the first fluid expands within said housing;
• said motor further consisting of a second fluid housed within a deformable chamber within said housing, wherein said chamber is in fluid communication with said first fluid whereby upon energization of said wire the first fluid expands to displace said deformable chamber and the second fluid contained therein;
• at least one output element of said motor which reciprocates as a result of the movement of said second fluid within the chamber;
• a transmission means connecting the output element to said sleeve, whereby said sleeve is reciprocated as a result of the reciprocating movement of the output element and rotary movement of said shaft is obtained.