Patent ID: 7001092

Claim:
A writing apparatus comprising: (a) a plastic sleeve having two ends, an open end and an eraser end, the plastic sleeve also having two surfaces, an inner surface and an outer surface, (b) a crayon having two ends, a writing end and a closed end, the crayon being located inside the plastic sleeve, the writing end of the crayon sticking out a short distance from the open end of the plastic sleeve, (c) an eraser rotatably attached to the eraser end of the plastic sleeve, (d) means for adjusting the position of the crayon in relation to the plastic sleeve, wherein the means for adjusting the position of the crayon in relation to the plastic sleeve further comprises: (a) a pair of tracks mounted within the plastic sleeve, the pair of tracks comprising a first track and a second track, each of the tracks having two ends comprising a first end and a second end, the first end of each track being located near the eraser end of the plastic sleeve and the second end of each track being located near the open end of the plastic sleeve, the two tracks running parallel to one another, the two tracks being 180 degrees from one another on the inner surface of the plastic sleeve, (b) a platform mounted on the pair of tracks, the platform being disc-shaped, (c) a ring attached to the inside perimeter of the eraser end of the plastic sleeve, the ring having two surfaces, a top surface and a bottom surface, the bottom surface of the ring having a plurality of teeth, (d) a pair of gears comprising a first gear and a second gear, the first end of the first track being wound around the first gear, the first end of the second track being wound around the second gear, wherein each of the gears are axially mounted against the inner surface of the plastic sleeve, further wherein each of the gears have a plurality of teeth, further wherein the plurality of teeth on each of the gears are in contact with the plurality of teeth on the bottom surface of the ring, (e) a pair of rollers comprising a first roller and a second roller, the second end of the first track being wound around the first roller, the second end of the second track being wound around the second roller, wherein each of the rollers are axially mounted against the inner surface of the plastic sleeve near the open end of the plastic sleeve and rotate about their axis, (f) wherein rotation of the ring causes the platform to move toward or away from the open end of the plastic sleeve.