"Parts shown are handle, A; sleeve, B; safety lock, C; cocking peice, D; safety lug, E; extractor, F; extractor collar, G; locking lugs, H; extractor tongue groove, I, and gas escape hole, J." — Moss, 1914

Bolt mechanism

"Parts shown are handle, A; sleeve, B; safety lock, C; cocking peice, D; safety lug, E; extractor, F;…

Sanctuary was also a right to be safe from arrest in the sanctuary of a church or temple, recognized by English law from the fourth to the seventeenth century.

Fugitive Claiming Sanctuary

Sanctuary was also a right to be safe from arrest in the sanctuary of a church or temple, recognized…

Used in combination with the vehicle fender to protect vehicle passengers, other vehicles, and pedestrians from mud and other flying debris thrown into the air by the rotating tire.

Mud Guard

Used in combination with the vehicle fender to protect vehicle passengers, other vehicles, and pedestrians…

This painting, by Tintoretto, depicts the Scarcity of the Church of the Madonna della Salute in Venice, Italy.

The Marriage at Cana

This painting, by Tintoretto, depicts the Scarcity of the Church of the Madonna della Salute in Venice,…

A razor with a guard to prevent deep cuts in the skin

Safety Razor

A razor with a guard to prevent deep cuts in the skin

A razor where the skin is protected from all but the very edge of the blade.

Safety Razor

A razor where the skin is protected from all but the very edge of the blade.

"At the command <em>ready</em> turn the safety lock to the 'ready'." &mdash; Moss, 1914

Ready

"At the command ready turn the safety lock to the 'ready'." — Moss, 1914

A safety-valve, in which a weight is employed. Here a is the valve, b b the boiler, c c the valve-seat, usually, like the valve itself, made of gunmetal, d the lever turning upon a fixed center at e, and pressing upon the valve by a steel point f, a guide for the lever g a weight which may be shifted backwards and forwards according to the pressure desired.

Lever Safety-valve

A safety-valve, in which a weight is employed. Here a is the valve, b b the boiler, c c the valve-seat,…

A form of spring safety-valve, in which a series of bent springs h h h are placed alternately in opposite directions, their extremities sliding upon the rod i, and the springs being kept down by the crossbar k; a being the valve, c the valve-seat, and b b part of the boiler.

Lever Spring Safety-valve

A form of spring safety-valve, in which a series of bent springs h h h are placed alternately in opposite…

An active fire protection measure, consisting of a water supply system, providing adequate pressure and flowrate to a water distribution piping system, onto which fire sprinklers are connected.

Automatic Sprinkler

An active fire protection measure, consisting of a water supply system, providing adequate pressure…

A fire escape is a special kind of emergency exit, usually mounted to the outside of a building or occasionally inside but separate from the main areas of the building. It provides a methods of escape in the event of a fire or other emergency that makes the stairwells inside a building inaccessible.

Fire Escape and Tower

A fire escape is a special kind of emergency exit, usually mounted to the outside of a building or occasionally…

An illustration of a lever safety valve. "Suppose the valve A is just suppose to open when the steam pressure under it is 120 lb. per square inch, that mean area of the valve exposed to steam pressure is 4 square inches, the weight of the valve 4ln., the distance C D being 3 inches the centre of gravity of the lever 7 inches from D, and its weight 6 lb.; where must the weight E - which is 50 lb. - be placed on the lever? The total upward force on the valve is 120 &times; 4 - 4 = 476 lb., and the moment of this force about D is 476 &times; 3 = 1428. This is the only negative moment, all other forces tending to turn the lever the opposite way." -New, 1891

Lever Safety Valve

An illustration of a lever safety valve. "Suppose the valve A is just suppose to open when the steam…