Abstract: An interchangeable lens assembly including a first lens, a lens bracket coupled to the first lens, and at least one connection portion disposed around at least a portion of a perimeter of the lens bracket. A goggle including a goggle frame and at least one coupling point disposed on the goggle frame and adapted to couple to the at least one connection portion on the lens bracket. The at least one coupling point and the at least one connection portion may be corresponding magnetic portions adapted to couple to each other by a magnetic interaction, and/or the at least one connection portion may be a protrusion, and the at least one coupling point may be an aperture adapted to receive and couple to the protrusion. This allows the lens assembly to be attached to and detached from the goggle frame quickly and easily with reduced manual dexterity.

Abstract: An interchangeable lens assembly including a first lens, a lens bracket coupled to the first lens, and at least one connection portion disposed around at least a portion of a perimeter of the lens bracket. A goggle including a goggle frame and at least one coupling point disposed on the goggle frame and adapted to couple to the at least one connection portion on the lens bracket. The at least one coupling point and the at least one connection portion may be corresponding magnetic portions adapted to couple to each other by a magnetic interaction, and/or the at least one connection portion may be a protrusion, and the at least one coupling point may be an aperture adapted to receive and couple to the protrusion. This allows the lens assembly to be attached to and detached from the goggle frame quickly and easily with reduced manual dexterity.

Abstract: An interchangeable lens assembly including a first lens, a lens bracket coupled to the first lens, and at least one connection portion disposed around at least a portion of a perimeter of the lens bracket. A goggle including a goggle frame and at least one coupling point disposed on the goggle frame and adapted to couple to the at least one connection portion on the lens bracket. The at least one coupling point and the at least one connection portion may be corresponding magnetic portions adapted to couple to each other by a magnetic interaction, and/or the at least one connection portion may be a protrusion, and the at least one coupling point may be an aperture adapted to receive and couple to the protrusion. This allows the lens assembly to be attached to and detached from the goggle frame quickly and easily with reduced manual dexterity.

Abstract: An interchangeable lens assembly including a first lens, a lens bracket coupled to the first lens, and at least one connection portion disposed around at least a portion of a perimeter of the lens bracket. A goggle including a goggle frame and at least one coupling point disposed on the goggle frame and adapted to couple to the at least one connection portion on the lens bracket. The at least one coupling point and the at least one connection portion may be corresponding magnetic portions adapted to couple to each other by a magnetic interaction, and/or the at least one connection portion may be a protrusion, and the at least one coupling point may be an aperture adapted to receive and couple to the protrusion. This allows the lens assembly to be attached to and detached from the goggle frame quickly and easily with reduced manual dexterity.

Abstract: An interchangeable lens assembly including a first lens, a lens bracket coupled to the first lens, and at least one connection portion disposed around at least a portion of a perimeter of the lens bracket. A goggle including a goggle frame and at least one coupling point disposed on the goggle frame and adapted to couple to the at least one connection portion on the lens bracket. The at least one coupling point and the at least one connection portion may be corresponding magnetic portions adapted to couple to each other by a magnetic interaction, and/or the at least one connection portion may be a protrusion, and the at least one coupling point may be an aperture adapted to receive and couple to the protrusion. This allows the lens assembly to be attached to and detached from the goggle frame quickly and easily with reduced manual dexterity.

Abstract: An interchangeable lens assembly including a first lens, a lens bracket coupled to the first lens, and at least one connection portion disposed around at least a portion of a perimeter of the lens bracket. A goggle including a goggle frame and at least one coupling point disposed on the goggle frame and adapted to couple to the at least one connection portion on the lens bracket. The at least one coupling point and the at least one connection portion may be corresponding magnetic portions adapted to couple to each other by a magnetic interaction, and/or the at least one connection portion may be a protrusion, and the at least one coupling point may be an aperture adapted to receive and couple to the protrusion. This allows the lens assembly to be attached to and detached from the goggle frame quickly and easily with reduced manual dexterity.

Abstract: A method of shearing a workpiece, for example a metal billet or bar, and apparatus for carrying out that method. Before being subjected to linear shear, the billet is first subjected to substantial torque about an axis perpendicular to the plane of shear. The billet is held by two pivoting arms, the predominant torque of the first stage of the method is achieved by allowing the pivot points of the arms to slide as the arms turn, and the predominant shear of the second stage is then achieved by arresting that sliding movement by stops. The parts of the arms which grip the workpiece may bear against a fixed surface during the whole operation, so holding the axis of the workpiece to a constant location.