The waste water from the various appliances, fixtures, and taps is transferred to the waste and sewage removal system via the sewage drain system. This system consists of larger diameter piping, water traps, and is well vented to prevent toxic gases from entering the living space. The plumbing drains and vents article discusses the topic further, and introduces sewage treatment.

Waste Water Trap Pipe

The waste water from the various appliances, fixtures, and taps is transferred to the waste and sewage…

This is the fastening for a shoe, A shoe is an item of footwear evolved at first to protect the human foot and later, additionally, as an item of decoration in itself.

Shoe Fastener Device

This is the fastening for a shoe, A shoe is an item of footwear evolved at first to protect the human…

Bicycle brake systems are used to slow down or brake a bicycle. There have been various types through history, and several are still in use today.

Bicycle Chain Brake System

Bicycle brake systems are used to slow down or brake a bicycle. There have been various types through…

The valve closet has a valve or flap at the exit of the bowl with a water-tight seal to retain a pool of water in the pan. When the toilet is flushed, the valve is opened and the water in the pan flows rapidly out of the bowl into the drains, carrying the waste with it.

Water Valve Closet

The valve closet has a valve or flap at the exit of the bowl with a water-tight seal to retain a pool…

The hardening process for drop hammer dies is done by containing the hardening liquid, usually water, is contained in a containment vessel. The liquid is pumped into the container to cool the metal.

Hardening Dies for Drop Hammers

The hardening process for drop hammer dies is done by containing the hardening liquid, usually water,…

The air enters the sand blast through the pipe, at the same time, the sand enters the chamber by lifting the second stop. At the very top of the chamber, sand is fed into the system. The lever is pulled to make the air and sand mixture go through the flexible hose. Sand blasting is used to clean metal.

Metal Cleaning using Sand Blast

The air enters the sand blast through the pipe, at the same time, the sand enters the chamber by lifting…

A cable system telegraph repeater device. The telegraph repeater device is used to send and receive telegrams in Morse code.

Cable System Telegraph Repeater

A cable system telegraph repeater device. The telegraph repeater device is used to send and receive…

Water heating is a thermodynamic process using an energy source to heat water above its initial temperature. Typical domestic uses of hot water are for cooking, cleaning, bathing, and space heating. In industry, both hot water and water heated to steam have many uses.

Rotary Water Heater

Water heating is a thermodynamic process using an energy source to heat water above its initial temperature.…

The present invention relates to a printing machine for printing price tickets, in which is combined the mechanism of a conventional ticket printing machine and that for magnetic recording which can be linked directly with a POS system.

Ticket Printing Machine

The present invention relates to a printing machine for printing price tickets, in which is combined…

"The micrometer box, and of course with it the whole system of spider webs, is moved by the screw s, whilst the measuring web is independently moved by the screw S." —Encyclopaedia Brittannica, 1910

Repsolds Micrometer Box for Telescope Cape Observatory

"The micrometer box, and of course with it the whole system of spider webs, is moved by the screw s,…

"If y be the object the image appears to a normal eye situated behind the system L with passive accommodation at a very great distance under the angle w'. Since H' P= F O, = y, from the focal length of the simple microscope is the image side focal length." —Encyclopaedia Britannica, 1910

Optical Position and Size of Image Through Magnifying Glasses

"If y be the object the image appears to a normal eye situated behind the system L with passive accommodation…

This is the illustration of the speaker implement to a burglar alarm equivalent, designed to alert the user to a specific danger.

Alarm Signal Device

This is the illustration of the speaker implement to a burglar alarm equivalent, designed to alert the…

"Showing a system with chromatic difference of spherical aberration. O" ₌ image of O for red light; O'" for blue. The system is under—corrected for red, and over—corrected for blue rays." —Encyclopaedia Britannica, 1910

Light Correction of Blue and Red Lights using Spherical Lens

"Showing a system with chromatic difference of spherical aberration. O" ₌ image of O for red light;…

A low power steam engine. The piston inside cylinder A moves the wheel, generating power at 100 horsepower or less. The steam from the system escapes the from the piston, moving the wheel.

Low Power Simple Steam Engine Diagram

A low power steam engine. The piston inside cylinder A moves the wheel, generating power at 100 horsepower…

An illustration of the water entering and exiting the condenser through pump. The cooling water enters the circulating pump R, exiting at pipe M. The steam enters at pipe S, and is cooled, or condensed. The condensed steam enters pump B, removing the air in the system.

Steam Engine Condenser with Pumps

An illustration of the water entering and exiting the condenser through pump. The cooling water enters…

A sliced view of a jet condenser with pump. The steam enters at D, while cold water enters at A. The steam and water mixes in E, then enters the pump chamber F. The water mixture is pumped out of the system through pipe G.

Steam Engine Jet Condenser with Pump

A sliced view of a jet condenser with pump. The steam enters at D, while cold water enters at A. The…

A circulatory and nervous system of Sphaerotherium obtusum, a South African millipede.

Diagram of Nerovous and Circulatory System of Sphaerotherium Obtusum Millipede

A circulatory and nervous system of Sphaerotherium obtusum, a South African millipede.

A light steel mining cage and car used to raise and lower cars in gold and silver mines. The car is loaded with the minerals from the mined and raised to the surface by a hoist.

Light Steel Safety Mining Cage and Car for Gold and Silver Mines

A light steel mining cage and car used to raise and lower cars in gold and silver mines. The car is…

A diagram illustrating cooling steam exhaust of steam engine using a water tower. The water is pumped out of the water tower using a motor into the condenser. The steam enters the condenser to be cooled by the water flowing by the adjacent pipe.

Water Tower Condenser Steam Cooling System in Engine Room

A diagram illustrating cooling steam exhaust of steam engine using a water tower. The water is pumped…

An illustration of Butler's motor tricycle. The tricycle operated by a throttle valve lever and a foot controlled lever to lower or raising the rear driving wheel. The vehicle was not fitted with a braking system, and operated at 3 to 10 mph.

Butler's Gas Operated Motor Tricycle

An illustration of Butler's motor tricycle. The tricycle operated by a throttle valve lever and a foot…

This is a plumbing fixture, with disposing system, intended for the disposal of bodily wastes.

Bathing Device

This is a plumbing fixture, with disposing system, intended for the disposal of bodily wastes.

A device for slowing or stopping motion, as of a vehicle, especially by contact friction.

Brake Mechanism

A device for slowing or stopping motion, as of a vehicle, especially by contact friction.

A device, such as a siren, used in announcing the outbreak of a fire.

Fire Alarm

A device, such as a siren, used in announcing the outbreak of a fire.

An instrument, usually resembling a pair of dividers or compasses with curved legs, for measuring the diameter or thickness of bodies, as of work shaped in a lathe or planer, timber, masts, shot, etc.

Micrometer Calipers

An instrument, usually resembling a pair of dividers or compasses with curved legs, for measuring the…

A vehicle brake is used to slow down a vehicle by converting its kinetic energy into heat. The basic hydraulic system, most commonly used, usually has six main stages. The brake pedal, the brake boost (vacuum servo), the master cylinder, the apportioning valves and finally the brakes themselves.

Automobile Brake

A vehicle brake is used to slow down a vehicle by converting its kinetic energy into heat. The basic…

An apparatus used to oil the crank pin of the belt drive system. The oil cup is filled with lubricant and travels through the small pipe, making the belt drive system to run smoothly.

Belt Drive Oiling Apparatus

An apparatus used to oil the crank pin of the belt drive system. The oil cup is filled with lubricant…

An illustration of a rotary steam engine. The steam turbine system was invented by Branca in 1629. Steam spins the turbine to turn a series of gears, generating power.

Steam Rotary Engine

An illustration of a rotary steam engine. The steam turbine system was invented by Branca in 1629. Steam…

An illustration of thermodynamic vaporization of water in a cylinder with piston. The cylinder filled with water is heated, and gradually turns into the vapor. As the water is heated, the piston moves up the cylinder. Cylinder B is saturated vapor, system with vapor and liquid, while the cylinder C is superheated vapor, containing only gas.

Thermodynamic Vaporization Diagram using Water in Cylinder with Piston

An illustration of thermodynamic vaporization of water in a cylinder with piston. The cylinder filled…

A piston system from a quadruple expansion engine showing the movement of steam. Steam first enters the first piston, then expanded into the first intermediate piston. This pushes the piston down, then the steam enters the second intermediate to push the piston up. The steam then enters the low piston, where the steam exits the system.

Quadruple Expansion Engine Piston

A piston system from a quadruple expansion engine showing the movement of steam. Steam first enters…

A pulley system used to reduce motion between the piston and the indicator of the steam engine. The indicator is attached by a string on the curved bottom triangle. As the piston moves, the string is pulled to record the pressure of the steam.

Reducing Motion of Piston and Indicator using Brumbo Pulley

A pulley system used to reduce motion between the piston and the indicator of the steam engine. The…

An illustration of the steam engine with Walschaert gear system on rail tracks. The piston moves the long shaft connected to the wheel. The lever adjusts the rods on top up and the lower ones down to rotate the wheels opposite from the arrows.

Steam Engine with Walschaert Gear on Railroad

An illustration of the steam engine with Walschaert gear system on rail tracks. The piston moves the…

An illustration of a Corliss steam engine to generate 5000 kW of electricity. The turbines to create electricity is located on the right hand side and the large circular casing in the left. The steam enters the system at a high pressure to turn the turbines.

5000 kW Corliss and Curtis Steam Engine for Electric Generation

An illustration of a Corliss steam engine to generate 5000 kW of electricity. The turbines to create…

A system of ordered marks at fixed intervals used as a reference standard in measurement

Scientific Scale

A system of ordered marks at fixed intervals used as a reference standard in measurement

A smoothbore gun that fires shot over short ranges. Also called scattergun.

Military Shotgun

A smoothbore gun that fires shot over short ranges. Also called scattergun.

An instrument for measuring or testing.

Instrument Panel Gauge

An instrument for measuring or testing.

A shout or bell to warn that fire has broken out.

Fire Alarm

A shout or bell to warn that fire has broken out.

Firearm is a device which projects either single or multiple projectiles at high velocity through a controlled explosion. The firing is achieved by the gases produced through rapid, confined burning of a propellant.0

Military Firearm

Firearm is a device which projects either single or multiple projectiles at high velocity through a…

A metallic cartridge used in small arms and small artillery pieces.

Military Shell

A metallic cartridge used in small arms and small artillery pieces.

A conveyor system is a common piece of mechanical handling equipment that moves materials from one location to another. Conveyors are especially useful in applications involving the transportation of heavy or bulky materials.

Four Drum Conveyor

A conveyor system is a common piece of mechanical handling equipment that moves materials from one location…

This receptacle consists of the metal box designed for connections to a wiring system.

Outlet Box

This receptacle consists of the metal box designed for connections to a wiring system.

A shaft in a building which serves as an air passage in a building.

Ventilation Shaft

A shaft in a building which serves as an air passage in a building.

using a mechanical system of gears or belts and pulleys to increase or decrease shaft speed. Power losses from friction are inherent in any gearing system.

Change Speed Gearing

using a mechanical system of gears or belts and pulleys to increase or decrease shaft speed. Power losses…

An illustration of an inclined railway, also known as a funicular or funicular railway. This railway runs on a pulley system, where two cars are counterbalanced, with one car ascending and one car descending.

Inclined Railway

An illustration of an inclined railway, also known as a funicular or funicular railway. This railway…

designed to handle heavy dust loads, a dust collector system consists of a blower, dust filter, a filter-cleaning system, and a dust receptacle or

Dust Collector

designed to handle heavy dust loads, a dust collector system consists of a blower, dust filter, a filter-cleaning…

A device which projects either single or multiple projectiles at high velocity through a controlled explosion. The firing is achieved by the gases produced through rapid, confined burning of a propellant.

Handheld Firearm

A device which projects either single or multiple projectiles at high velocity through a controlled…

A flexible form of ruler. It consists of a ribbon of cloth, plastic, fiber glass, or metal strip with linear

Measuring Tape

A flexible form of ruler. It consists of a ribbon of cloth, plastic, fiber glass, or metal strip with…

Type of portable scaffolding system. The scaffold rests on supports attached to 2 or more horizontal posts. The user raises the scaffolding by pumping the foot pedals on the supports. Used in construction.

Pump Jack

Type of portable scaffolding system. The scaffold rests on supports attached to 2 or more horizontal…

A fitted device which lets you know when there is a gas leak in the house, meaning you should get out straight away just in case.

Gas Alarm

A fitted device which lets you know when there is a gas leak in the house, meaning you should get out…

A conveyance braking system actuated by compressed air. Modern trains rely upon a fail-safe air brake system

Air Brake

A conveyance braking system actuated by compressed air. Modern trains rely upon a fail-safe air brake…

Any of various measuring instruments for measuring a quantity

General Purpose Meter

Any of various measuring instruments for measuring a quantity

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…

The pump in the cooling system of an automobile that cause the water to circulate

Water Pump

The pump in the cooling system of an automobile that cause the water to circulate

A device that measures the instantaneous speed of a land vehicle.

Multiple Use Speedometer

A device that measures the instantaneous speed of a land vehicle.

Mainly facilitates the process of photosynthesis and water vascular system in taller plants.

Schinus Foliage

Mainly facilitates the process of photosynthesis and water vascular system in taller plants.

One of the first Greek amphitheaters, located in the political center of the Elymian people.

Theater of Segesta

One of the first Greek amphitheaters, located in the political center of the Elymian people.

"The first noted public appearance of [Alcibiades] was on the occasion of the coming of the Lacedaemonian ambassadors requesting the surrender of Pylus. He at first violently opposed the petition, and even went so far as to urge the sending of an embassy to Argos to solicit that city to become a member in a new Athenian league. In spite of the earnest efforts of Nicias and of the protests of the Spartan ambassador, Alcibiades, by means of intrigue and bluster, succeeded in this work, and not only Argos, but also Elis and Mantinea, agreed to maintain an alliance with Athens for a hundred years."—Ridpath, 1885

Alcibiades

"The first noted public appearance of [Alcibiades] was on the occasion of the coming of the Lacedaemonian…

"These [upright] systems are sometimes referred to as the "goblet" systems, since when the shoots are tied together the plant bears a certain resemblance to such a glass. As a rule, these vines make comparatively little growth, and the canes are severely cut back each year."—Government Printing Office, 1897

Upright System of Grape Training

"These [upright] systems are sometimes referred to as the "goblet" systems, since when the shoots are…

"The cross-wire system is another method of training which appears to be confined in this country to the Hudson River Valley, and even there it is used only to a limited extent. But at Juraçon, Bassess-Pyrénées, France, this system is regularly followed. Poles are used in place of the wires, however. [The image] represents vines trained in this manner."—Government Printing Office, 1897

Cross-Wire System of Grape Training

"The cross-wire system is another method of training which appears to be confined in this country to…

An unpruned vine trained according to the Hudson horizontal system.

Unpruned Vine

An unpruned vine trained according to the Hudson horizontal system.

A diagram of the horizontal arm spur system, depicting the various parts of a vine.

Horizontal Arm Spur System

A diagram of the horizontal arm spur system, depicting the various parts of a vine.