ClipArt ETC
Abbe's Marine Nephoscope for observing direction and motion of a cloud using a compass. The compass measures the direction of the cloud moving, while the center metal reflects the sky.

Abbe's Marine Nephoscope Horizontal Mirror Projection

Abbe's Marine Nephoscope for observing direction and motion of a cloud using a compass. The compass…

Abbe's Marine Nephoscope for observing direction and motion of a cloud. The horizontal mirror reflects the sky, matching the cloud's motion.

Abbe's Marine Nephoscope Horizontal Compass Projection

Abbe's Marine Nephoscope for observing direction and motion of a cloud. The horizontal mirror reflects…

The inside view of Abbe's Marine Nephoscope used to measure the cloud's direction and velocity on a boat. The rounded middle part of the nephoscope is the mirror with the compass is along the circumfrance.

Abbe's Marine Nephoscope Inside View

The inside view of Abbe's Marine Nephoscope used to measure the cloud's direction and velocity on a…

A device used to determine geographic direction, usually consisting of a magnetic needle or needles horizontally mounted or suspended and free to pivot until aligned with the earth's magnetic field.

Route Compass

A device used to determine geographic direction, usually consisting of a magnetic needle or needles…

Sometimes built into a compass, this instrument allows you to determine and measure angles in degrees and is most useful when projecting magnetic lines across your map.

Bevel Protractor

Sometimes built into a compass, this instrument allows you to determine and measure angles in degrees…

"A rude form of the compass used by early Chinese sailors. The little wooden figure was set on a pivot, and in the outstretched arm was placed a bar of magnetized iron."—Myers, 1905

Chinese Magnet Figure

"A rude form of the compass used by early Chinese sailors. The little wooden figure was set on a pivot,…

A gimbals is a contrivance designed to keep a marine compass, chronometer, lamp, or other instrument in the horizontal position on board ship, notwithstanding the rolling and pitching of the vessel. The instrument is suspended in the diametral axis of a ring, which is again suspended in the diametral axis of another ring, the two axes being at right angles to one another.

Gimbals

A gimbals is a contrivance designed to keep a marine compass, chronometer, lamp, or other instrument…

A gimbals is a contrivance designed to keep a marine compass, chronometer, lamp, or other instrument in the horizontal position on board ship, notwithstanding the rolling and pitching of the vessel. The instrument is suspended in the diametral axis of a ring, which is again suspended in the diametral axis of another ring, the two axes being at right angles to one another. This illustration shows a diagram of a gimbals, showing the angle of the ship (A), the perpendicular axes of the rings, and the compass suspended horizontally in the gimbals (B).

Gimbals (Diagram)

A gimbals is a contrivance designed to keep a marine compass, chronometer, lamp, or other instrument…

A gimbals is a contrivance designed to keep a marine compass, chronometer, lamp, or other instrument in the horizontal position on board ship, notwithstanding the rolling and pitching of the vessel. The instrument is suspended in the diametral axis of a ring, which is again suspended in the diametral axis of another ring, the two axes being at right angles to one another. This illustration shows a gimbal joint.

Gimbals (Joint)

A gimbals is a contrivance designed to keep a marine compass, chronometer, lamp, or other instrument…

Ritchie Liquid Compass. US Naval compasses have the degree around the rim marked from 0 to 360, east being 90, south being 180, etc.

Compass Card

Ritchie Liquid Compass. US Naval compasses have the degree around the rim marked from 0 to 360, east…

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 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.

This illustration includes numerous types of saws: a. Circular saw (right-hand and left-hand saws have the teeth running opposite directions); b. section of circular saw showing flange at c; d. concave saw; e. circular saw with inserted teeth; f. mill-saw; g. ice-saw; h. cross-cut saw; i. band-saw; j. rip-saw; k. hand-saw; l. panel-saw; m. pruning-saw; n. whip-saw; o. wood-saw; p. keyhole or compass-saw; q. back-saw; r. bow-back butchers' saw.

Collection of Saws

This illustration includes numerous types of saws: a. Circular saw (right-hand and left-hand saws have…