Universal Compass Intelligence Drawing Template

The problem

Traditional drafting and classroom geometry require several separate tools: a ruler for straight lines, a protractor for angles, and a metal-point compass for circles. Switching between them slows down work and increases the chance of misalignment. Metal-point compasses also puncture the paper surface, which ruins finished drawings and makes the tool unsuitable for young children who may struggle with the sharp point. Keeping all these instruments organized in a pencil case takes space, and individual pieces are easily lost during class or on a job site.

The solution

This patent describes a single flat template that replaces the compass, protractor and basic rulers.

1. A fixed form (001) serves as the rectangular base, with scale rulers on all four edges.
2. A rotating circular template (002) sits inside a stepped circular hole in the fixed form, resting on an inner boss ridge (004).
3. Multiple small circle holes are distributed at different distances from the center of the circular template, each indicating a specific diameter size.
4. Inserting a pencil into a chosen hole and rotating the circular template draws a complete circle without a metal needle.
5. Straight line holes (021–027) and angled slots on the template allow the user to trace triangles, rectangles and pentagons.
6. Pattern cutouts provide outlines for schematic symbols such as diodes, triodes and inductance coils.

Who it is for

• Educational stationery brands looking for a geometry tool that eliminates the safety risk of needle compasses in classrooms while combining multiple drafting functions.
• Office and art supply wholesalers adding a compact, multi-function drafting aid to their catalog for engineers, architects and hobbyists who sketch quick diagrams.
• Promotional product distributors sourcing flat, printable templates for corporate branding, since the design includes a marked brand name area (018) on the surface.
• Toy and puzzle makers developing hands-on learning kits that encourage children to explore shapes and spatial reasoning through guided tracing.

How it works

The main parts

Operating steps

1. Place the fixed form flat on the paper. All scales, text and marks are engraved on the back surface so the face remains flush.
2. To draw a circle, select a small circle hole on the rotating template corresponding to the desired diameter. Insert a pencil and rotate the template one full turn. The inner side boss ridge prevents the disc from tilting.
3. To draw a rectangle, align a pencil in one of the straight line holes, draw a side, rotate the template 90 degrees using the 360-degree scale, and repeat four times.
4. To draw a triangle, use the first straight line hole and the center line arrows to set the required angles, then trace the sides through the parallel slots.
5. For decorative patterns, replace the circular template with the flower-pattern insert. Its gear teeth mesh with the knuckle-teeth on the frame; rotating it traces multi-petal shapes.

Applications

Classroom geometry lessons

Students use the template to construct circles, triangles and rectangles without handling a sharp compass point. The integrated scales and angle markings keep all necessary references on one board, reducing desk clutter during math periods.

Engineering and electronics sketching

Drafters and technicians trace standard schematic symbols, including diode, triode and inductance coil figures, directly from the pattern cutouts. This speeds up hand-drawn circuit diagrams when CAD software is not immediately available.

Art and craft projects

Crafters swap in the flower-shaped collapsible form to generate repeating petal patterns for greeting cards or scrapbooking. The gear-teeth mechanism ensures the petals remain evenly spaced around the center.

Corporate promotional items

Stationery suppliers print company logos in the designated brand name marked area and distribute the templates at trade shows. The flat profile fits easily into envelopes or presentation folders.

Where it is less suitable

• High-precision architectural drafting - professional CAD or metal drafting compasses offer finer tolerances than a plastic rotating template.
• Large-format poster drawing - the template size limits the maximum circle diameter to the dimensions of the disc itself.
• Heavy-duty workshop marking - metal scribes and industrial trammel points are required for marking steel or wood surfaces.