Modular double adjustable chock

An apparatus configured for use as an adjustable chock for connecting a piece of machinery to a support along a common axis of the adjustable chock, the apparatus comprising:

• a first element having a first through-hole,
• a center element disposed on the first element and
• a center stud moveably engaged with the center element;
• wherein
• the first element has a first surface which contacts the center element and that is rotationally symmetrical and that is one of convex and concave;
• wherein
• the first surface has a first axis of rotational symmetry substantially aligned with the common axis of the adjustable chock in operational use of the adjustable chock, the first through-hole being coaxial with the first surface;
• wherein
• the center element has an intermediate surface which contacts the first element and that is rotationally symmetrical and that is the other one of convex and concave with respect to the first surface;
• wherein
• the intermediate surface has a center axis of rotational symmetry substantially aligned with the common axis of the adjustable chock in operational use of the adjustable chock;
• wherein
• the first surface and the intermediate surface are complementarily shaped for engaging in operational use of the adjustable chock, only the intermediate surface of the center element contacts the first element, the intermediate surface overlying the first surface such that there is only abutting contact between the first element and the center element and the first element cannot prevent the center element from moving away therefrom;
• wherein
• the center element has a center through-hole that is cylindrical and that is coaxial with the intermediate surface;
• wherein
• a wall of the center through-hole is provided with an inner screw thread;
• wherein
• the center stud comprises a cylindrical outer surface having a diameter that corresponds to a maximum diameter of the center stud;
• wherein
• the cylindrical outer surface has a stud axis of rotational symmetry that is substantially aligned with the common axis of the adjustable chock in operational use of the adjustable chock;
• wherein
• the cylindrical outer surface is provided with an outer screw thread for engaging with the inner screw thread of the center element so as to have the center stud and the center element connected through a screwed connection in operational use of the adjustable chock;
• and wherein
• the center stud comprises a stud through-hole that is cylindrical, that extends across a full length of the center stud and that is coaxial with the cylindrical outer surface, a diameter of the first through-hole is substantially larger than another diameter of the stud through-hole, the stud through-hole having a constant diameter throughout,
• wherein the center stud has a surface that is complementarily shaped with respect to the first surface of the first element.

A apparatus comprising:

• a piece of machinery and
• a support, wherein the piece of machinery and the support are attached to each other via at least one adjustable chock, the apparatus further including;
• a first element,
• a second element,
• a center element disposed on the first element and
• a center stud moveably engaged with the center element;
• wherein
• the first element has a first surface which contacts the center element and that is rotationally symmetrical and that is one of convex and concave;
• wherein
• the first surface has a first axis of rotational symmetry substantially aligned with the common axis of the adjustable chock in operational use of the adjustable chock;
• wherein
• the center element has an intermediate surface which contacts the first element and that is rotationally symmetrical and that is the other one of convex and concave with respect to the first surface;
• wherein
• the intermediate surface has a center axis of rotational symmetry substantially aligned with the common axis of the adjustable chock in operational use of the adjustable chock;
• wherein
• the first surface and the intermediate surface are complementarily shaped for engaging in operational use of the adjustable chock, only the intermediate surface of the center element contacts the first element, the intermediate surface overlying the first surface such that there is only abutting contact between the first element and the center element and the first element cannot prevent the center element from moving away therefrom;
• wherein
• the center element has a center through-hole that is cylindrical and that is coaxial with the intermediate surface;
• wherein
• a wall of the center through-hole is provided with an inner screw thread;
• wherein
• the center stud comprises a cylindrical outer surface;
• wherein
• the cylindrical outer surface has a stud axis of rotational symmetry that is substantially aligned with the common axis of the adjustable chock in operational use of the adjustable chock;
• wherein
• the cylindrical outer surface is provided with an outer screw thread for engaging with the inner screw thread of the center element so as to have the center stud and the center element connected through a screwed connection in operational use of the adjustable chock, the cylindrical outer surface has a constant diameter that corresponds to a maximum diameter of the center stud;
• wherein
• the center stud comprises a stud through-hole that is cylindrical, that extends across a full length of the center stud and that is coaxial with the cylindrical outer surface, and wherein
• the second element includes a cylindrical recess with a second inner screw thread for engaging with the outer screw thread of the center stud so as to have the center stud and the second element connected through a further screwed connection in operational use of the adjustable chock.