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A ball joint assembly that is a movable mount for a work holding device for holding an item, such as a rifle or pistol, where the ball joint assembly is for seating on, or mounting onto, a table top, bench, or like surface. The ball joint assembly includes a cylindrical housing slotted on opposite s

A ball joint assembly that is a movable mount for a work holding device for holding an item, such as a rifle or pistol, where the ball joint assembly is for seating on, or mounting onto, a table top, bench, or like surface. The ball joint assembly includes a cylindrical housing slotted on opposite sides thereof from a center opening in the housing top and contains a ball that rests on a plunger top end of a jacking screw that is turned in a round nut by a lever arm, and the ball joint assembly is fitted into the housing. Turning of the lever arm that is fitted through a housing lateral slot extends the plunger top into the ball, lifting the ball to lock it against a housing top concave surface, and which ball includes a stem extending through the housing top to tilt between the slots and pivot when the ball in unlocked, and the ball stem end includes a tool mounting for connection to the work holding devices.

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1. A bail joint assembly comprising, a base and means for attaching said base to a work surface or a stand; a cylindrical housing and means for attaching a bottom of said cylindrical housing to a top surface of said base, and said cylindrical housing includes a lateral slot formed around an arc of l

1. A bail joint assembly comprising, a base and means for attaching said base to a work surface or a stand; a cylindrical housing and means for attaching a bottom of said cylindrical housing to a top surface of said base, and said cylindrical housing includes a lateral slot formed around an arc of less than ninety degrees adjacent to said base; which said cylindrical housing is open across its bottom end, includes a top having a concave inner surface, a center opening and a pair of slots that align across said cylindrical housing that intersect said cylindrical housing center opening, and said cylindrical housing concave inner surface has a like arc to the curve of the outer surface of a ball that has a diameter to fit into said cylindrical housing and is slid therein, into engagement with said concave inner surface, and which said ball has a straight shaft or stem extending outwardly from said ball surface that fits through said cylindrical housing top center opening and will slide along each of said aligned slots, between ends of said slots, when said ball is tilted, traveling in an arch of approximately one hundred eighty degrees across said cylindrical housing top; means for elevating said ball located within said cylindrical housing that includes a round nut with a threaded center passage that a jacking screw is turned through that includes a plunger on a top end for engaging said ball surface, and is secured to an end of a handle on its lower end that extends through said housing lateral slot for gripping by an operator; said round nut has a smooth cylindrical outer surface for siding into said housing bottom end after turning said jacking screw into said round nut threaded center passage; means for maintaining said round nut positioning in said cylindrical housing such that, turning said handle that is mounted to said jacking screw and extends out from said housing side, less than ninety degrees, elevates said jacking screw plunger onto said ball, urging it into locking engagement with said cylindrical housing top concave inner surface; a spring means having an apex with outwardly sloping legs for installation into and is held in place in the cylindrical housing lateral slot between an end wall of said lateral slot and the side of said handle to bias said handle to turn the jacking screw to urge the ball against the cylindrical housing top inner concave surface, and said spring means, when said sloping legs are squeezed towards one another, load to resist handle travel when said handle is moved to release said ball from a locking attitude against said housing top inner concave surface; and coupling means on an outer end of said straight shaft or stem for mounting a work holding device. 2. The ball joint assembly as recited in claim 1, wherein the means for maintaining said round nut positioning in said cylindrical housing is a snap ring installed in a groove formed around the inner surface of the cylindrical housing; and a set screw is turned through a threaded hole through said cylindrical housing to lock said round nut in position. 3. The ball joint assembly as recited in claim 1, wherein the spring means is formed in a V shape where the legs of said spring means are individually in contact with the end wall of the lateral slot and the side of the handle, respectively, and the legs when closed together with movement of said handle to release said ball from the locking attitude, are loaded to urge said handle back to a locking attitude. 4. The ball joint assembly as recited in claim 1, further including, spaced radial holes are formed at equal interval into the bottom of the cylindrical housing that are sided to receive an end of an alien wrench fitted through the lateral slot formed through said cylindrical housing bottom section for turning the round nut so as to elevate it on the jacking screw for adjusting the spacing distance of the top surface of the plunger installed onto the top end of said jacking screw to the ball to improve purchase of the ball surface to the said cylindrical house top inner concave surface. 5. The ball joint assembly as recited in claim 1, wherein the coupling means formed on the outer end of the straight shaft or stem is a shelf formed across said shaft or stem and spaced from said shaft or stem outer end, which said shelf includes spaced threaded holes formed through said shaft or stem above said shelf; and fastener means for turning through holes in a clamping mechanism and into said spaced threaded holes. 6. The ball joint assembly as recited in claim 1, further including a T-base formed from a first short flat section of material and a second long flat section of a material where an end section of said second long section is connected to the middle of said first short flat section, forming a cross; and means for mounting the base to a mid-section of said second long section. 7. The ball joint assembly as recited in claim 6, further including a gun rail that is a flat straight narrow section of a material; means for mounting said gun rail to the shaft or stem coupling means; a forearm stock support mounting and a butt stock support mounting that are each arranged for longitudinal attachment to said forward and rear sections, respectively, of said gun rail. 8. The ball joint assembly as recited in claim 7, wherein the gun rail includes first and second slots formed, respectively, in the said forward and rear sections of said gun rail, where said forward section first slot receives a clamp of the forearm stock support mounting and said rear section second slot receives a clamp of the butt stock support mounting and feet are fitted to the bottom end surfaces of the T-base first short flat section and the end of the second long section, opposite to the pivotal connection. 9. The ball joint assembly as recited in claim 1, further including a pistol mounting plate means for connection to a shaft or stem shelf that includes spaced pins that extend outwardly from a top surface that are for fitting into holes formed in a base of a magazine mount that has the same dimensions as a pistol magazine cavity.