Mowing apparatus

Claim 2

A mowing apparatus comprising means mountable upon a vehicle, first and second arms swingably disposed at their normally rearward ends upon said mounting means, rotary blades provided at the outer end of each of said arms, means supporting said blades upon each of said arms for rotation about an axis normal to the longitudinal axis of the related arm, means for effecting rotation of said blades, a guard carried upon each arm surroundingly of the related blades, a first fluid assembly operatively engaged to said first arm, a second fluid assembly engaged to said second arm, a source of fluid connected to said first and second fluid assemblies, said second fluid assembly being of relatively greater capacity than said first fluid assembly for urging said second arm toward said first arm.

Claim 3

A mowing apparatus comprising means mountable upon a vehicle, first and second arms swingably disposed at their normally rearward ends upon said mounting means, rotary blades provided at the outer end of each of said arms, means supporting said blades upon each of said arms for rotation about an axis normal to the longitudinal axis of the related arm, means for effecting rotation of said blades, a guard carried upon each arm surroundingly of the related blades, a first fluid assembly operatively engaged to said first arm, a second fluid assembly engaged to said second arm, a source of fluid connected to said first and second fluid assemblies, said second fluid assembly being of relatively greater capacity than said first fluid assembly for urging said second arm toward said first arm.

Claim 4

A mowing apparatus comprising means mountable upon a vehicle, first and second arms swingably disposed at their normally rearward ends upon said mounting means, rotary blades provided at the outer end of each of said arms, means supporting said blades upon each of said arms for rotation about an axis normal to the longitudinal axis of the related arm, means for effecting rotation of said blades, a guard carried upon each arm surroundingly of the related blades, a first fluid assembly operatively engaged to said first arm, a second fluid assembly engaged to said second arm, a source of fluid connected to said first and second fluid assemblies, said second fluid assembly being of relatively greater capacity than said first fluid assembly for urging said second arm toward said first arm.

Claim 5

A mowing apparatus as defined in claim 1 and further characterized by said mounting means comprising a boom member, means swingably mounting said boom member upon said vehicle for rendering said boOm member axially shiftable and yieldable means for urging said boom member into normal operative position but allowing same to yield under applied stress.

Claim 6

A mowing apparatus as defined in claim 1 and further characterized by said means mountable upon said vehicle being a boom, said first and second arm being swingably disposed in one end portion of said boom, said second arm being located laterally outwardly of said first arm, said first fluid assembly comprising a cylinder, means pivotally mounting one end of said first fluid assembly cylinder upon said boom, a piston provided within said last mentioned cylinder and having its normally outer end pivotally engaged to said first arm proximate its engagement to said boom, said second fluid assembly having a cylinder, means supporting said second fluid assembly cylinder from said boom on the opposite side thereof than said first fluid assembly, said second fluid assembly cylinder having a piston, means engaging the outer end of said last mentioned piston to said second arm, the stroke of said piston of said second fluid assembly being longer than the stroke of said piston of said first fluid assembly.

Claim 7

A mowing apparatus as defined in claim 3 and further characterized by said boom being swingably mounted, and yieldable means urging said boom for presenting said first and second arms laterally outwardly of said vehicle and yet permitting of yielding of said boom together with said arms under applied stress.

Claim 8

A mowing apparatus comprising means mountable upon a vehicle, first and second arms swingably disposed at their normally rearward ends upon said mounting means, rotary blades provided at the outer end of each of said arms, means supporting said blades upon each of said arms for rotation about an axis normal to the longitudinal axis of the related arm, means for effecting rotation of said blades, a spring member having outer and inner ends, said outer end of said spring member being anchored to said mounting means, and movable means connected to the inner end of said spring member and engaged to said first and second arms, said movable means comprising a first cable secured at one end to said first arm, a second cable secured at one end to said second arm, and pivotally mounted means interconnecting said spring member and said first and second cables.

Claim 9

A mowing apparatus comprising means mountable upon a vehicle, first and second arms swingably disposed at their normally rearward ends upon said mounting means, rotary blades provided at the outer end of each of said arms, means supporting said blades upon each of said arms for rotation about an axis normal to the longitudinal axis of the related arm, means for effecting rotation of said blades, a spring member having outer and inner ends, said outer end of said spring member being anchored to said mounting means, and movable means connected to the inner end of said spring member and engaged to said first and second arms, said movable means comprising a first cable secured at one end to said first arm, a second cable secured at one end to said second arm, and pivotally mounted means interconnecting said spring member and said first and second cables.

Claim 10

A mowing apparatus as defined in claim 5 and further characterized by said movable means comprising a link pivotally engaged upon said mountable means, and having a normally rearward and normally forward end, said spring inner end being engaged to said link rearward end, a bracket pivotally mounted on the forward end of said link, a first cable connecting said bracket and said second arm, a second cable connecting said bracket and said first arm, and directing means provided on said second arm for training thereabout of said second cable.

Claim 11

A mowing apparatus comprising means mountable upon a vehicle, first and second arms swingably disposed at their normally rearward ends upon said mounting means, rotary blades provided at the outer end of each of said arms, means supporting said blades upon each of said arms for rotation about an axis normal to the longitudinal axis of the related arm, means for effecting rotation of said blades, a guard carried upon each arm surroundingly of the related blades, said arms being disposed in mutually spaced relationship upon said mounting means, first and second springs fixed at one of their ends upon said mounting means, respectively, proximate said first and second arms and cables interconnecting the other ends of said first and second springs with said first and second arms, respectively.

Claim 12

A mowing apparatus comprising means mountable upon a vehicle, first and second arms swingably disposed at their normally rearward ends upon said mounting means, rotary blades provided at the outer end of each of said arms, means supporting said blades upon each of said arms for rotation about an axis normal to the longitudinal axis of the related arm, means for effecting rotation of said blades, a guard carried upon each arm surroundingly of the related blades, said arms being disposed in mutually spaced relationship upon said mounting means, first and second springs fixed at one of their ends upon said mounting means, respectively, proximate said first and second arms and cables interconnecting the other ends of said first and second springs with said first and second arms, respectively.