### Compasses

Different compasses used in mechanical drawing.

### Composite Figure

Illustration of a composite figure made up of rings, rectangles, triangles, etc..

### Composite Figure of Quadrilateral Frustum With Half of a Cylinder Attached

An illustration of a composite figure made up of a quadrilateral frustum and half of a cylinder. Frustum…

### Cross Section of Concrete Conduit

Cross section of concrete conduit. The diagram can be used to find volume.

### Cone

"A cone is a solid whose base is a circle and whose convex surface tapers uniformly to a point." —Hallock…

### Development Exercise of Cone

Development and top completion exercise problem of the cone by dividing the base into equal parts and…

### Development of Cone

A rolled out image of a cone by dividing the base in equal parts and arcs to measure the true lengths.

### Plane Parallel to Base, Passing Through a Cone

Illustration of a plane parallel to the base passing through a cone (section made is a circle).

### Plane Parallel to Base, Passing Through a Cone

Illustration of a plane parallel to the base passing through a cone (section made is a circle).

### Development Exercise of Flange and Hood Cones

An exercise problem to complete the top and develop, stretched out, image of the flange and hood cones…

### Conic Axes

Conjugate diameters perpendicular to each other are called, axes, and the points where they cut the…

### Conic Section Using Circle

The cone is sliced by a circle in a plane perpendicular to the axis. This can be drawn without knowledge…

### Conic Section Using Ellipse

The cone is sliced by a ellipse by making an angle within the plane. This can be drawn with knowing…

### Cone depicting Conic Sections

Diagram of a cone with spheres and cut by a plane to depict the conic sections.

### Cone depicting Conic Sections

Diagram of a cone with inscribed spheres and cut by various planes to depict the conic sections: circle,…

### Construction of a Conic

Diagram showing how to construct a conic when given the focus and the auxiliary circle. If the focus…

### Focus In Auxiliary Circle of Conic

Diagram showing how to construct a conic when given the focus and the auxiliary circle. The focus is…

### Focus In Auxiliary Circle of Conic

Diagram showing how to construct a conic when given the focus and the auxiliary circle. As the focus…

### Construction of Arc When Given the Chord and Height of the Segment

Illustration of of construction of an arc when the chord and height of the segment are given.

### Construction of a Circle When Given Two Points and a Radius

Illustration used to construct a circle when given two points that it passes through and a radius.

### Triangle With Circle Constructions

Illustration of a triangle with its incircle and three excircles constructed.

### Construction of a Common Tangent When Given Two Circles

Illustration used to construct a common tangent when given two circles.

### Construction of a Circle Through a Given Point that Cuts Chords of Given Lengths From Parallels

Illustration used to construct a circle that shall pass through a given point and cut chords of a given…

### Construction of Radius When Given Only a Part of the Circumference

Illustration of of construction of a radius when given only a part of the circumference.

### Construction of Radius When Given Only a Part of the Circumference

Illustration of of construction of a radius when given only a part of the circumference.

### Construction to Describe a Segment of a Circle in Which an Angle Can Be Inscribed

Illustration of the construction used upon a given straight line, to describe a segment of a circle…

### Polar Coordinates

Finding the equation of a line with polar coordinates.

### Isometric of a Cube With Circles Inscribed

Isometric of a cube with circles inscribed on its faces.

### Curve in Pavement of Road

Illustration of blueprint used by highway engineers to widen the pavement on the inside of the curve…

### Intersection of Cylinder and Cone

An illustration of finding an intersection of a cone and cylinder by either cutting the vertex of the…

### Cycloid

"A cycloid is the curve generated by the motion of a point on the circumference of a circle rolled along…

### Intersection of Cylinder and Cone

An illustration of finding an intersection of a cone and cylinder by either cutting the vertex of the…

### Projection of Cylinder With Circular Hole

Projection of a cylinder with a circular hole.

### Development Exercise of Cylinder

An exercise problem in creating a development or rolled out surface of a cylinder in a 4" by 5" drawing…

### Cylinder Inscribed in Pentagonal Prism

Right circular cylinder inscribed in a pentagonal prism. Or, Pentagonal prism circumscribed about a…

### Isometric of a Cylinder

Isometric of a cylinder.

### Plane Intersecting A Cylinder

Illustration of a cylinder cut by a plane making an angle of 57° with the base.

### Planes Passing Through A Cylinder

Illustration of planes passing through a cylinder.

### Projection of Cylinder

Illustration of the method of finding the projection, in the form of an ellipse, of the top of a cylinder…

### Projections of Cylinder

Projections of a cylinder inclined to horizontal plane.

### Right Cylinder

a solid which may be concieved as generated by the revolution of a rectangle about one of its sides.

### 2 Smaller Cylinders In A Larger Cylinder

A large cylinder containing 2 smaller congruent cylinders. The small cylinders are externally tangent…

### 3 Smaller Cylinders In A Larger Cylinder

A large cylinder containing 3 smaller congruent cylinders. The small cylinders are externally tangent…

### 4 Smaller Cylinders In A Larger Cylinder

A large cylinder containing 4 smaller congruent cylinders. The small cylinders are externally tangent…

### 7 Smaller Cylinders In A Larger Cylinder

A large cylinder containing 7 smaller congruent cylinders. The small cylinders are externally tangent…

### Construction Of A Cyma

An illustration showing how to construct a cyma, or two circle arcs that will tangent themselves, and…

### Design Similar to Yin Yang Symbol

Design made by drawing one large circle and then two circles that are vertically placed and internally…

### Circular Design

Circular design made by rotating circles about a fixed point. The radii of the smaller circles is equal…

### Circular Design

Circular design made by rotating circles about a fixed point. The radii of the smaller circles is equal…

### Diploid

A solid belonging to the isometric system, with 24 trapezoidal planes. It is the parallel hemihedral…

### Development Exercise of Dome and True Shape of Hip

A development or rolled out image exercise problem of the dome and finding the true shape of the hip,…

### Drawing a Circle Using Compass

When drawing the circle, the compass is turned by the handle with the thumb and forefinger in a clockwise…

### Drawing Lines 4

Circles should be unshaded or shaded evenly with thick and thin lines, changing at about 45 degrees.

### Suns in the Equator and Ecliptic

"Were the Earth's orbit a perfect circle, and her axis perpendicular to the plane of this orbit, the…

### Eccentric Angle

"In geometry, an angle connected with an ellipse and defined as ... angle BCL, reckoned from one determinate…

### Construction of Ellipse by Describing Circles

Illustration used to draw a an ellipse using string and pins by describing a circles with diameters…

### Construction of Ellipse

Illustration used to draw a an ellipse with major axis AB and minor axis CD.

### Ellipse Inscribed In A Circle

Illustration of an ellipse, whose major axis is vertical, inscribed in a circle whose diameter is equal…

### Section of a Cylinder Showing an Ellipse

Illustration showing an ellipse (and circle) as a section from a cylinder.

### 16 Rotated Concentric Ellipses

Illustration of 16 concentric congruent ellipses that are rotated about the center at equal intervals…