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1. An automated core drilling device comprising: a rigid drilling tower; a floating chuck assembly; and a drill bit,
said rigid drilling tower comprising: at least three vertical column members, a lower perimeter frame, and an upper perimeter frame, wherein,
said at least three vertical column members are each rigid oblong members with a lower end and an upper end that are positioned vertically and parallel with each other with said lower end of each said at least three vertical column members is placed on a horizontal plane along a perimeter surrounding a center point,said lower perimeter frame is an assembly of a plurality rigid oblong members, each with a first and second end, wherein, the number of said plurality of rigid oblong members corresponds to the number of said at least three vertical column members, said first end of each said rigid oblong member being rigidly attached to said lower end of one said at least three vertical column members, said second end of each said rigid oblong member being rigidly attached to said lower end of an adjacent said at least three vertical column members, so that said lower end of each said at least three vertical column members is rigidly attached to said first end of one rigid oblong member and said second end of another said rigid oblong member, exclusively, to form a rigid planar perimeter frame rigidly connecting said lower ends of said at least three vertical column members,said upper perimeter frame is an assembly of a plurality rigid oblong members, each with a first and second end, wherein, the number of said plurality of rigid oblong members corresponds to the number of said at least three vertical column members, said first end of each said rigid oblong member being rigidly attached to said upper end of one said at least three vertical column members, said second end of each said rigid oblong member being rigidly attached to said upper end of an adjacent said at least three vertical column members, so that said upper end of each said at least three vertical column members is rigidly attached to said first end of one rigid oblong member and said second end of another said rigid oblong member, exclusively, to form a rigid planar perimeter frame rigidly connecting said upper ends of at least three vertical column members, said floating chuck assembly comprising: a drill bit axis-of-rotation vertical clearance channel, at least three horizontal support arms, at least three feed motor platforms, at least three feed motors, a hub casing, a bit driveshaft, a bit driveshaft sprocket, an offset spindle driveshaft sprocket, an offset spindle driveshaft 35, and an offset spindle motor, wherein,
said hub casing is a rigid hollow encasement with an upper bit driveshaft pivot hole in vertical alignment with and a lower bit driveshaft pivot hole where each pivot hole is a cylindrical void in said hub casing used as a pivot bearing hole through which said upper or said lower end of said bit driveshaft is inserted, and an upper offset spindle driveshaft pivot hole in vertical alignment with and a lower offset spindle pivot hole, where each pivot hole is a cylindrical void in said hub casing used as a pivot bearing hole through which said upper end or said lower end of said offset spindle driveshaft is inserted,said bit driveshaft is a rigid hollow cylindrical member with an open upper end, an open lower end, and an inner diameter of 1.5-35 inches, said open lower end having male thread or a helical groove structure on its outer diameter extending 1-10 inches from the end,said offset spindle driveshaft is a rigid cylindrical member with an upper end and a lower end,said hub casing houses and supports said upper end of said bit driveshaft, said bit driveshaft sprocket, said offset spindle driveshaft sprocket, and said lower end of said offset spindle driveshaft,said bit driveshaft sprocket and said offset spindle driveshaft sprocket are each sprockets or rigid planar circular wheels with a hole in the center and a plurality teeth, cogs, or projections around the circumference of the wheel, pointing radially outwards from the center of the wheel,said bit driveshaft sprocket is rigidly attached to said bit driveshaft wherein said upper end or said lower end of said bit driveshaft is inserted through said bit driveshaft sprocket center hole and rigidly attached to said bit driveshaft sprocket with the longitudinal axis of said bit driveshaft being perpendicular to the plane of said bit driveshaft sprocket,said bit driveshaft with rigidly attached said bit driveshaft sprocket is pivotally mounted within said hub casing with said upper end of said bit driveshaft inserted through said upper bit driveshaft pivot hole of said hub casing and said lower end of said bit driveshaft inserted through said lower bit driveshaft pivot hole of said hub casing,said offset spindle driveshaft sprocket is rigidly attached to said offset spindle driveshaft wherein said upper end or said lower end of said offset spindle driveshaft is inserted through said offset spindle driveshaft sprocket center hole and rigidly attached to said offset spindle sprocket with the longitudinal axis of said offset spindle driveshaft being perpendicular to the plane of said offset spindle driveshaft sprocket,said offset spindle driveshaft with rigidly attached said offset spindle driveshaft sprocket is pivotally mounted within said hub casing with said upper end of said offset spindle driveshaft inserted through said upper offset spindle driveshaft pivot hole of said hub casing and said lower end of said offset spindle driveshaft inserted through said lower offset spindle driveshaft pivot hole of said hub casing,said bit driveshaft sprocket and said offset spindle driveshaft sprocket are positioned horizontally on the same horizontal plane in planetary alignment with each other, so a closed-looped chain, track, or other inelastic perforated or indented material may be mounted around one half the circumferences of said driveshaft sprocket and one half the circumference of said offset spindle driveshaft to mechanically connect the two sprockets so that the rotation of one sprocket necessarily causes by mechanical connection through said closed-looped chain, track, or other inelastic perforated or indented material, the rotation of the other sprocket and vice versa,said offset spindle motor is an electric motor that converts electricity into rotational motion or kinetic energy by forcibly rotating said offset spindle driveshaft,said offset spindle motor is rigidly mounted to said hub casing,each said at least three horizontal support arms is a rigid oblong member with an inner end and an outer end where each said at least three horizontal support arms is positioned horizontally and radially about said drill bit axis-of-rotation vertical clearance channel as seen from top plan view,said inner ends of said at least three horizontal support arms are each rigidly attached to said hub casing,each said at least three feed motor platform is a rigid support framework in the shape of a cuboid, rectangular cuboid, or box-shaped member with an open top, an open bottom, an inner side, an outer side, a left side, and a right side wherein said cuboid, rectangular cuboid, or box-shaped member is sized to make a slip fit or clearance fit with said at least three vertical column members so said upper or said lower end of said at least three vertical column member may be slid through said open top or said open bottom, upon which point said feed motor platform is held steady laterally and refrained from any appreciable non-vertical movement relative to said vertical column member as a result of lateral support from said inner side, said outer side, said left side, and said right side of said feed motor platform, however, said feed motor platform may be slid or moved vertically along said vertical column member and is slideably attached thereby to one said at least three vertical column members,said inner side, said left side, or said right side of each said at least three feed motor platforms is rigidly attached to said outer end of each said at least three horizontal support arms,each of said at least three feed motors is rigidly attached to either said left side or said right side of each said at least three feed motor platforms,each of said at least three feed motors is an electric motor that converts electricity into rotational motion or kinetic energy by forcibly rotating a feed motor sprocket, said drill bit is a rigid cylindrical member with a closed upper end, an open lower end, and inner diameter of 40-400 inches wherein said closed upper end is closed except at its center where a bushing member is rigidly attached,
said bushing member being a rigid cylindrical member with two open ends and an inner diameter of 1.5-35 inches, said bushing member positioned so that its center longitudinal axis is aligned with, and coincident with, the center longitudinal axis of said rigid cylindrical member,said bushing member having female thread or a helical groove structure on its inner diameter, and said drill bit axis-of-rotation vertical clearance channel is a clearance channel or void space 1.5-35 inches in overall diameter extending vertically through said center point of said automated core drilling device, extending through said upper perimeter frame, said inner diameter of said bit drive shaft, said inner diameter of said drill bit bushing member, said inner diameter of said drill bit, and through said lower perimeter frame. |
