Abstract: A tunnel boring machine for boring a tunnel in rock including: locating means mounted to a frame for supporting and locating the frame in a disposition with respect to a tunnel axis and a boring face of the tunnel being bored; a first boring assembly operatively associated with said frame for boring into an annular face surrounding a core substantially coaxial with the tunnel axis, the annular face being a portion of the boring face; a core removal assembly operatively associated with said frame and disposed axially with respect to said first boring assembly away from the annular face, said core removal assembly being operable for removing at the core exposed by the first boring assembly transverse to the tunnel axis to expose the remainder of the boring face; and drive means operatively associated with said first boring assembly for driving said boring assembly into the annular face.

Abstract: A tunnel boring machine for boring a tunnel in rock including: locating means mounted to a frame for supporting and locating the frame in a disposition with respect to a tunnel axis and a boring face of the tunnel being bored; a first boring assembly operatively associated with said frame for boring into an annular face surrounding a core substantially coaxial with the tunnel axis, the annular face being a portion of the boring face; a core removal assembly operatively associated with said frame and disposed axially with respect to said first boring assembly away from the annular face, said core removal assembly being operable for removing at the core exposed by the first boring assembly transverse to the tunnel axis to expose the remainder of the boring face; and drive means operatively associated with said first boring assembly for driving said boring assembly into the annular face.

Abstract: A brake warning lamp system for a vehicle including: one or more primary brake lamps in a first set of brake lamps facing outwards from the rear of the vehicle; one or more secondary brake lamps in a second set of brake lamps facing outward from the rear of the vehicle and spaced from the primary brake lamps; sensing means for sensing deceleration of the vehicle; and control means operatively connected to the sensing means for selectively connecting the first and second set of brake lamps to the power supply of the vehicle to selectively illuminate the primary and/or secondary brake lamps.

Abstract: A brake warning lamp system for a vehicle including: one or more primary brake lamps in a first set of brake lamps facing outwards from the rear of the vehicle; one or more secondary brake lamps in a second set of brake lamps facing outward from the rear of the vehicle and spaced from the primary brake lamps; sensing means for sensing deceleration of the vehicle; and control means operatively connected to the sensing means for selectively connecting the first and second set of brake lamps to the power supply of the vehicle to selectively illuminate the primary and/or secondary brake lamps.