초록 ▼

A vertically extended loading and unloading apparatus spans between the floors of a building. The apparatus includes a frame that is generally vertically positioned, the frame extending between at least two floors of a building so that articles to be loaded or unloaded between floors can be transpor

A vertically extended loading and unloading apparatus spans between the floors of a building. The apparatus includes a frame that is generally vertically positioned, the frame extending between at least two floors of a building so that articles to be loaded or unloaded between floors can be transported vertically using the frame. A carriage is movably mounted to the frame, the carriage having an interior and an upper planar load carrying horizontal surface and a plurality of inclined side walls that extend from the load carrying horizontal surface downwardly. A motor drive mounted inside the carriage interior engages a static belt that is wound upon the motor drive and anchored at the top and bottom of the frame. The cable extends horizontally to engage the motor drive and a gear provided on the motor drive within the carriage interior. Rotation of the gear in the opposite directions defines either upward or downward movement of the carriage.

대표청구항 ▼

A vertically extended loading and unloading apparatus spans between the floors of a building. The apparatus includes a frame that is generally vertically positioned, the frame extending between at least two floors of a building so that articles to be loaded or unloaded between floors can be transpor

A vertically extended loading and unloading apparatus spans between the floors of a building. The apparatus includes a frame that is generally vertically positioned, the frame extending between at least two floors of a building so that articles to be loaded or unloaded between floors can be transported vertically using the frame. A carriage is movably mounted to the frame, the carriage having an interior and an upper planar load carrying horizontal surface and a plurality of inclined side walls that extend from the load carrying horizontal surface downwardly. A motor drive mounted inside the carriage interior engages a static belt that is wound upon the motor drive and anchored at the top and bottom of the frame. The cable extends horizontally to engage the motor drive and a gear provided on the motor drive within the carriage interior. Rotation of the gear in the opposite directions defines either upward or downward movement of the carriage. sional superabrasive cutting member having a leading edge and a three-dimensional arcuate scoop-like surface which conveys formation cuttings away from the cutting element. The cutting element may also be formed to a substrate or backing. A drill bit suitable for use of the cutting elements of the invention is disclosed which includes passageways and internal fluid passages for enhancing the conveyance of formation cuttings away from the leading edge of the cutting element. A method of drilling earthen formations with a drill bit incorporating at least one cutting element comprising a three-dimensional superabrasive cutting member having a leading edge and a three-dimensional arcuate scoop-like surface which conveys formation cuttings away from the cutting element is also disclosed.