Power wrenches with two point reaction means

Claim 2

A power tool for rotating one of a plurality of threaded members, said tool comprising: a. a wrench positionable over one threaded member for transmitting a torque thereto, said wrench having a head; b. a beam having a hollow sleeve loosely receiving said wrench therethrough for free relative rotation therebetween in the clockwise and counter-clockwise directions; c. a fluid-operated cylinder mounted over and being pivotally coupled to said beam, said cylinder having a reciprocating rod coupled to said head for transmitting a force thereto; d. an anchor anchorable only over another threaded member; e. means coupling said anchor to said beam; and f. said tool being anchorable solely to said one and said another threaded members for transmitting a torque to said one threaded member in both clockwise and counterclockwise directions, depending on the direction of the power stroke exerted by said rod.

Claim 3

A power tool for rotating one of a plurality of threaded members, said tool comprising: a. a wrench positionable over one threaded member for transmitting a torque thereto, said wrench having a head defining a plurality of angularly-spaced notches; b. a beam having a hollow sleeve loosely receiving said wrench therethrough for free relative rotation therebetween in the clockwise and counter-clockwise direction; c. a fluid-operated cylinder mounted over and being pivotally coupled to said beam, said cylinder having a reciprocating rod movable to successively engage said notches for successively transmitting a force to said wreench; d. an anchor anchorable only over another threaded member; e. means movably coupling said anchor to said beam to vary the distance between said one and said another threaded members; and f. said tool being anchorable solely to said one and said another threaded members for transmitting a torque to said one threaded member in both clockwise and counterclockwise directions, depending on the direction of the power stroke exerted by said rod.

Claim 4

A power tool for rotating one of a plurality of threaded members, said tool comprising: a. a wrench positionable over one threaded member for transmitting a torque thereto, said wrench having a head defining a plurality of angularly-spaced notches; b. a beam having a hollow sleeve loosely receiving said wrench therethrough for free relative rotation therebetween in the clockwise and counter-clockwise direction; c. a fluid-operated cylinder mounted over and being pivotally coupled to said beam, said cylinder having a reciprocating rod movable to successively engage said notches for successively transmitting a force to said wreench; d. an anchor anchorable only over another threaded member; e. means movably coupling said anchor to said beam to vary the distance between said one and said another threaded members; and f. said tool being anchorable solely to said one and said another threaded members for transmitting a torque to said one threaded member in both clockwise and counterclockwise directions, depending on the direction of the power stroke exerted by said rod.

Claim 5

A power tool for rotating one of a plurality of threaded members, said tool comprising: a. a wrench adapter having a socket positionable over one threaded member for transmitting a torque thereto; b. a wrench arm extending laterally from the wrench adapter, the outer end of said arm forming a wrench head having a plurality of angularly-spaced notches; c. a beam having at one end a hollow sleeve loosely receiving said wrench adapter therethrough for free relative rotation therebetween in the clockwise and counterclockwise direction; d. a fluid-operated cylinder mounted over and being pivotally coupled to said beam, said cylinder having a reciprocating rod successively engaging said notches for successively transmitting a force to said wrench arm; e. an anchor having a socket positionable only over another threaded member; f. means movably coupling said anchor to said beam to vary the distance between said one and said another threaded members; and g. said tool being anchorable solely to said one and said another threaded members for transmitting a torque to said one threaded member in both clockwise and counterclockwise directions, depending on the direction of the power stroke exerted by said rod.

Claim 6

A power tool for rotating one of a plurality of threaded members, said tool comprising: a. a wrench adapter having a socket positionable over one threaded member for transmitting a torque thereto; b. a wrench arm extending laterally from the wrench adapter, the outer end of said arm forming a wrench head having a plurality of angularly-spaced notches; c. a beam having at one end a hollow sleeve loosely receiving said wrench adapter therethrough for free relative rotation therebetween in the clockwise and counterclockwise direction; d. a fluid-operated cylinder mounted over and being pivotally coupled to said beam, said cylinder having a reciprocating rod successively engaging said notches for successively transmitting a force to said wrench arm; e. an anchor having a socket positionable only over another threaded member; f. means movably coupling said anchor to said beam to vary the distance between said one and said another threaded members; and g. said tool being anchorable solely to said one and said another threaded members for transmitting a torque to said one threaded member in both clockwise and counterclockwise directions, depending on the direction of the power stroke exerted by said rod.

Claim 7

The tool according to claim 3, wherein said anchor is slideably coupled to said beam.

Claim 8

The tool according to claim 3, wherein said anchor includes an arm pivotably connected to said beam.

Claim 9

The tool according to claim 3, wherein said rod forms a substantially right angle with said wrench arm, said angle being substantially independent of the variation in the distance between said one and said another threaded members.