Ellipsograph

Details Ellipsograph Ellipsograph

1978-07-21

1979-10-02

Phillips, Charles E.

Geometrical instruments

Scriber

Curved line

B43L 1104

Patent

active

041693159

ABSTRACT:
An ellipsograph utilizing dynamic projection method for drawing an ellipsoid comprising a central rod having a circle cap formed on the top portion thereof and a positioning needle secured at the end thereof; a sleeve on said central rod having a pair of horizontal beams secured thereto and extending radially therefrom; a pair of supports connected to said horizontal beams for holding a circle; a pair of guide balls inserted in the circular slot of the circle for defining the inclination of the circle; a rotational rod engaged with the sleeve having a pen stand and a roller seat equipped thereon; and a major axis rod slidable through a guide tube which is eccentrically secured to the circle. The circle preserves a fixed inclined position so that the path of the drawing pen on the pen stand will be elliptical, forming a truly mathematical ellipsoid.

REFERENCES:
patent: 1637507 (1927-08-01), Zavagno
patent: 2645854 (1953-07-01), Dibrell
patent: 3085341 (1963-04-01), Lundebjerg

Affiliated with

Also associated with

Rating

Ellipsograph does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ellipsograph, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ellipsograph will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2365869