Horizontal boom lift arms

Claim 2

first and second cylindrical shafts held together in a vertical, parallel and spaced apart relationship by first and second horizontal cross members;

Claim 3

first and second cylindrical shafts held together in a vertical, parallel and spaced apart relationship by first and second horizontal cross members;

Claim 4

first and second cylindrical shafts held together in a vertical, parallel and spaced apart relationship by first and second horizontal cross members;

Claim 5

In an agricultural spray type vehicle of the type including a vehicle having mounted thereon a fluid reservoir and a pair of booms which may be extended from said vehicle at right angles by rotation about a vertical axis at the inner end thereof for dispensing the fluid in said reservoir over a given area, a boom positioning mechanism comprising: a. first and second frame members, said first frame member being fixedly attached to the rear of said vehicle and having first and second vertical struts displaced on eithEr side of the center of said vehicle by a predetermined distance, said second frame member having said booms mounted thereon; said second frame member comprising:

Claim 6

In an agricultural spray type vehicle of the type including a vehicle having mounted thereon a fluid reservoir and a pair of booms which may be extended from said vehicle at right angles by rotation about a vertical axis at the inner end thereof for dispensing the fluid in said reservoir over a given area, a boom positioning mechanism comprising: a. first and second frame members, said first frame member being fixedly attached to the rear of said vehicle and having first and second vertical struts displaced on eithEr side of the center of said vehicle by a predetermined distance, said second frame member having said booms mounted thereon; said second frame member comprising:

Claim 7

first and second cylindrical sleeve members disposed on the lower ends of each of said first and second shafts;

Claim 8

first and second cylindrical sleeve members disposed on the lower ends of each of said first and second shafts;

Claim 9

Apparatus as in claim 1 wherein said means for moving said first and second arms in a vertical direction comprises a hydraulically operated piston coupled between said pivot shaft and said first frame member.

Claim 10

first and second cylindrical sleeve members disposed on the lower ends of each of said first and second shafts;

Claim 11

first and second cylindrical sleeve members disposed on the lower ends of each of said first and second shafts;

Claim 12

means connecting said booms individually to said first cylindrical sleeve on said first and second shafts; and

Claim 13

means connecting said booms individually to said first cylindrical sleeve on said first and second shafts; and

Claim 14

Apparatus as in claim 1 and further including shock absorber means disposed between said slidable means and said second frame member.

Claim 15

means connecting said booms individually to said first cylindrical sleeve on said first and second shafts; and

Claim 16

means connecting said booms individually to said first cylindrical sleeve on said first and second shafts; and

Claim 17

means for imparting a rotational motion to said second cylindrical sleeve on sai first and second shafts; b. first and second slidable means mounted on said first and second vertical struts for vertical reciprocating motion therealong; c. a scissors mechanism having first and second arms pivoting about a generally centrally disposed pivot shaft forming a fulcrum; d. means pivotally connecting the outer end of each of said arms respectively to said first and second slidable means and the opposed inner ends of each of said arms being pivotally anchored to said first frame member at a pivot anchor point; e. linkage means coupling said first and second slidable means to said second frame member; f. means coupled to said pivot shaft for simultaneously moving said first and second arms for substantially equal arcuate distances in a vertical direction and plane about said inner pivot anchor point; g. third and fourth cylindrical sleeve members individually disposed on the upper ends of said first and second cylindrical shafts; and h. linear motion producing means coupling said third and fourth sleeve members to said booms.

Claim 18

means for imparting a rotational motion to said second cylindrical sleeve on sai first and second shafts; b. first and second slidable means mounted on said first and second vertical struts for vertical reciprocating motion therealong; c. a scissors mechanism having first and second arms pivoting about a generally centrally disposed pivot shaft forming a fulcrum; d. means pivotally connecting the outer end of each of said arms respectively to said first and second slidable means and the opposed inner ends of each of said arms being pivotally anchored to said first frame member at a pivot anchor point; e. linkage means coupling said first and second slidable means to said second frame member; f. means coupled to said pivot shaft for simultaneously moving said first and second arms for substantially equal arcuate distances in a vertical direction and plane about said inner pivot anchor point; g. third and fourth cylindrical sleeve members individually disposed on the upper ends of said first and second cylindrical shafts; and h. linear motion producing means coupling said third and fourth sleeve members to said booms.

Claim 19

means for imparting a rotational motion to said second cylindrical sleeve on said first and second shafts; c. coupling Means slidably engaging said first and second vertical members on said first frame and coupled to said second frame; d. means including a pair of lifting arms pivotally anchored at their respective inner ends to said first frame and each being coupled at their respective outer ends to one of said pair of extensible booms; e. means for simultaneously displacing said coupling means substantially equal distances in a vertical direction; f. third and fourth cylindrical sleeve members individually disposed on the upper ends of said first and second cylindrical shafts; and g. linear motion producing means coupling said third and fourth sleeve members to said booms.

Claim 20

means for imparting a rotational motion to said second cylindrical sleeve on said first and second shafts; c. coupling Means slidably engaging said first and second vertical members on said first frame and coupled to said second frame; d. means including a pair of lifting arms pivotally anchored at their respective inner ends to said first frame and each being coupled at their respective outer ends to one of said pair of extensible booms; e. means for simultaneously displacing said coupling means substantially equal distances in a vertical direction; f. third and fourth cylindrical sleeve members individually disposed on the upper ends of said first and second cylindrical shafts; and g. linear motion producing means coupling said third and fourth sleeve members to said booms.

Claim 21

Apparatus as in claim 1 wherein said scissor arms pivot about a pivot shaft forming a fulcrum oriented along a horizontal axis.

Claim 22

Apparatus as in claim 1 wherein said means for imparting rotational motion comprises: a. an arm attached to said second cylindrical sleeves and extending outwardly therefrom; and b. first and second hydraulic cylinders coupled between said arms attached to said second cylindrical sleeves and said first horizontal cross member.

Claim 23

Apparatus as in claim 1 wherein said vehicle is a self-propelled motor vehicle.

Claim 24

Apparatus as in claim 1 being particularly characterized in that detent means are provided coupling said first and second cylindrical sleeve members on each of said first and second shafts.

Claim 25

In an agricultural spray apparatus of the type including a vehicle having a fluid reservoir mounted thereon and a pair of booms which may be rotatably extended about a generally vertical axis from said vehicle for dispensing the fluid in said reservoir over a given area, a boom elevating mechanism comprising: a. a first frame having first and second vertical members fixedly attached to the rear of said vehicle on opposite sides of the center line of said vehicle; b. a second frame having a pair of extensible booms coupled thereto positioned rearward of said first frame with respect to said vehicle, said second frame comprising: 1. first and second cylindrical shafts held together in a vertical, parallel and spaced apart relationship by first and second horizontal cross members; 2. first and second cylindrical sleeve members disposed on the lower ends of each of said first and second shafts; 3. means connecting said booms individually to said first cylindrical sleeve on said first and second shafts; and 4. means for imparting a rotational motion to said second cylindrical sleeve on said first and second shafts; c. coupling Means slidably engaging said first and second vertical members on said first frame and coupled to said second frame; d. means including a pair of lifting arms pivotally anchored at their respective inner ends to said first frame and each being coupled at their respective outer ends to one of said pair of extensible booms; e. means for simultaneously displacing said coupling means substantially equal distances in a vertical direction; f. third and fourth cylindrical sleeve members individually disposed on the upper ends of said first and second cylindrical shafts; and g. linear motion producing means coupling said third and fourth sleeve members to said booms.

Claim 26

In an agricultural spray apparatus of the type including a vehicle having a fluid reservoir mounted thereon and a pair of booms which may be rotatably extended about a generally vertical axis from said vehicle for dispensing the fluid in said reservoir over a given area, a boom elevating mechanism comprising: a. a first frame having first and second vertical members fixedly attached to the rear of said vehicle on opposite sides of the center line of said vehicle; b. a second frame having a pair of extensible booms coupled thereto positioned rearward of said first frame with respect to said vehicle, said second frame comprising: 1. first and second cylindrical shafts held together in a vertical, parallel and spaced apart relationship by first and second horizontal cross members; 2. first and second cylindrical sleeve members disposed on the lower ends of each of said first and second shafts; 3. means connecting said booms individually to said first cylindrical sleeve on said first and second shafts; and 4. means for imparting a rotational motion to said second cylindrical sleeve on said first and second shafts; c. coupling Means slidably engaging said first and second vertical members on said first frame and coupled to said second frame; d. means including a pair of lifting arms pivotally anchored at their respective inner ends to said first frame and each being coupled at their respective outer ends to one of said pair of extensible booms; e. means for simultaneously displacing said coupling means substantially equal distances in a vertical direction; f. third and fourth cylindrical sleeve members individually disposed on the upper ends of said first and second cylindrical shafts; and g. linear motion producing means coupling said third and fourth sleeve members to said booms.