 ### Bisect An Angle

Illustration used to show how to construct a bisector of an angle when the sides intersect within the… ### Bisect An Angle

Illustration used to show how to construct a bisector of an angle when the sides no not intersect within… ### Construction of Angle

Illustration of construction to lay off an angle. ### Bisecting an Arc

Illustration used to show how to bisect a given arc. ### Building the Argo

"At that time the only species of navigation known to the Greeks consisted of small boats or canoes… ### Brace

A prop or support; a piece of timber extending across a corner from one piece of timber to another. ### Circle Diameters

If every diameter is perpendicular to its conjugate, the conic is a circle. ### Dividing Circle into Equal Parts by Concentric

Circle divided into equal parts by concentric circles. ### Coldframe

"One of the simplest types of coldframes, which is a lean-to against the foundation of a house." —… ### Compound Riveted Girder (side by side)

A compound riveted girder is designed to bear a large load in a building or bridge, and is made of either… ### Compound Riveted Girder (Vertical)

A compound riveted girder is designed to bear a large load in a building or bridge, and is made of either… ### Development of a Cone

Pattern that can be used to make a cone. Development of a cone. ### Plan and Elevation of a Cone

Plan and elevation of a cone. ### Conic Axes

Conjugate diameters perpendicular to each other are called, axes, and the points where they cut the… ### 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 Layers of a Section of the Appian Way

Illustration of the various layers of a Roman road. This is a section of the Appian Way, built across… ### 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 Bisecting a Given Angle

Illustration of the construction used to bisect a given angle. ### Construction of Bisecting a Given Arc

Illustration of the construction used to bisect a given arc. ### Construction of Bisecting a Given Line

Illustration of the construction used to bisect a given line. ### 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 to Circumscribe a Circle About a Triangle

Illustration of the construction used to circumscribe a circle about a given triangle. ### Construction of a Common Tangent When Given Two Circles

Illustration used to construct a common tangent when given two circles. ### Construction of Dividing Lines

A line which is divided into seven equal parts, shown by construction. ### Construction of Dividing Lines

A line which is divided into equal parts, shown by construction and square. ### Construction of an Equal Angle Given a Point and a Straight Line

Illustration of the construction used to create an equal angle given a point in a given straight line… ### Construction of Escribed Circles With Ex-centres

Illustration of the construction used to escribe circles with centres (centers) called ex-centres of… ### Construction to Find the Third Angle of a Triangle When Given Two Angles

Illustration of the construction used to find the third angle of a triangle when two of the angles are… ### 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 to Inscribe a Circle in a Triangle

Illustration of the construction used to inscribe a circle in a given triangle. ### Construction of a Parallelogram When Given Two Sides and Included Angle

Illustration of the construction used to make a parallelogram when given two sides and the included… ### Construction of Perpendicular Upon a Given Line From an External Point

Illustration to let fall a perpendicular upon a given line from a given external point. ### Construction of Perpendicular From a Given Point on a Straight Line

Illustration of the construction of a perpendicular to a line when given a point O on the straight line. ### Construction of Perpendicular From a Given Point on a Straight Line

Illustration of the construction of a perpendicular to a line when given a point B on the straight line. ### 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… ### Construction of a Straight Line Divided Into Equal Parts

Illustration of the construction used to divide a straight line into a given number of equal parts. ### Construction of a Straight Line Parallel to a Given Straight Line

Illustration of the construction used to create straight line parallel to a given straight line through… ### Construction of Tangent Line Through a Given Point to a Given Circle

Illustration of the construction used to draw a tangent to a given circle through a given point. ### Construction of a Triangle When Given Two Sides and the Angle Opposite (Ambiguous Case)

Illustration of the construction used to make a triangle when given two sides and the angle opposite… ### Construction of a Triangle When Given Two Sides and the Angle Opposite (Ambiguous Case)

Illustration of the construction used to make a triangle when given two sides and the angle opposite… ### Construction of a Triangle When Given Two Sides and the Angle Opposite (Ambiguous Case)

Illustration of the construction used to make a triangle when given two sides and the angle opposite… ### Construction of a Triangle Given Perimeter, Angle, Altitude

Illustration used to construct a triangle , given the perimeter, one angle, and the altitude from the… ### Construction of a Triangle When Given a Side and Two Angles

Illustration of the construction used to make a triangle when given a side and two angles. ### Construction of a Triangle When Given Three Sides

Illustration of the construction used to make a triangle when given three sides. ### Construction of a Triangle When Given Two Sides and Included Angle

Illustration of the construction used to make a triangle when given two sides and the included angle. ### Positioning Pen for Constructions

Illustration showing the correct and incorrect position of a right line pen against a T-square, triangle,… ### Constructive System of a Gothic Church

Constructive system of a Gothic church illustrating the principles of isolated supports and buttressing. ### Chicken Coop

A farm building for housing poultry ### Isometric of a Cube

Isometric of a cube with 30°. ### Second Order Curve Tangents

Any four-point on a curve of the second order and the four-side formed by the tangents at these points… ### Diving Bell

"The large iron vessel does not allow air to escape once it is lowered into a body of water for underwater… ### Dixie 4-Cylinder Magneto

End elevation and section of Dixie 4-Cylinder Magneto showing construction and connections. ### Pattern for Dodecahedron

Pattern that can be cut out and folded to construct a regular dodecahedron. Fold on the dotted lines,… ### Dry Dock

An illustration of a dry dock, a narrow basin or vessel that can be flooded to allow a load to be floated…