ClipArt ETC
A compass used to draw precise circles and arcs in mechanical drawing.

Drafting Compass

A compass used to draw precise circles and arcs in mechanical drawing.

A hand holds and employs a drafting compass, a device used to create precise arcs and circles in mechanical drawing.

Hand Holding a Drafting Compass

A hand holds and employs a drafting compass, a device used to create precise arcs and circles in mechanical…

A device used to transfer drawing onto opaque paper using bright tin, two showcase lamps, and plate glass. The drawings can be copied in pencil on heavy paper or Bistrol—board.

Transparent Drawing Board

A device used to transfer drawing onto opaque paper using bright tin, two showcase lamps, and plate…

A blue print frame used to make copies of mechanical drawing. The process is done by exposing a sensitized paper in contact with the tracing paper to the light source in the frame. A chemical reaction takes place when washing with water to create a strong blue color, creating the image.

Blue Print Frame

A blue print frame used to make copies of mechanical drawing. The process is done by exposing a sensitized…

A simple pantograph used to reducing or enlarging images by using a pivot while drawing the larger image.

Pantograph

A simple pantograph used to reducing or enlarging images by using a pivot while drawing the larger image.

An illustration of a suspended pantograph has metal arms to resize images accurately in engineering work.

Suspended Pantograph

An illustration of a suspended pantograph has metal arms to resize images accurately in engineering…

An illustration of sharpening a pen to equal shape and length using a a stone soaked in oil. The pen is held about 30 degrees, and drawing line back and forth until sharpened to desired shape and length.

Sharpening Pen using Stone

An illustration of sharpening a pen to equal shape and length using a a stone soaked in oil. The pen…

Sharpened drawing pencil for mechanical drawings.

Drawing Pencil

Sharpened drawing pencil for mechanical drawings.

An illustration of enlarging an image by using squares. This proportion method is done by using squares to resize the image.

Enlargement of Image by Squares

An illustration of enlarging an image by using squares. This proportion method is done by using squares…

"Where the square has a fast and a loose head, the blade should be mortised into the fixed one and the nut and thumb screw arranged as shown; the movable swivel head being used the least." —Grimshaw, 1902

Adjustable Rectangular Head T Square

"Where the square has a fast and a loose head, the blade should be mortised into the fixed one and the…

A front and side view of a t square with rectangular head. The t square is used draw straight lines using the blade in mechanical drawing.

Fixed Rectangular Head T Square

A front and side view of a t square with rectangular head. The t square is used draw straight lines…

"To enable the drawing of long parallel, the head must have been a long contact surface with the edge of the board. It must also be wide enough to hold the blade stiffly." —Grimshaw, 1902

Fixed Triangular Head T Square

"To enable the drawing of long parallel, the head must have been a long contact surface with the edge…

"Where the head is movable, the pivot should be quit large, and the hole in which it plays be bushed with metal; the washers must be large, and the clamp screws of hard metal, with deep threads and unreliable." —Grimshaw, 1902

Taper Head Adjustable T Square Side and Front View

"Where the head is movable, the pivot should be quit large, and the hole in which it plays be bushed…