ClipArt ETC
A close up of a square thread on a screw. This representation shows the correct an accurate three dimensional view of the screw.

Square Thread Screw

A close up of a square thread on a screw. This representation shows the correct an accurate three dimensional…

A union suit is a type of one-piece long underwear. These are traditionally made from red flannel with long arms and long legs, it buttoned up on the front and had a button up flap in the rear covering the buttocks.

Union Suit

A union suit is a type of one-piece long underwear. These are traditionally made from red flannel with…

This Union overcall garment was used as a suit which is still commercially available. Depending on the size, some union suits can have a dozen buttons on the front to be fastened through buttonholes from the neck down to the groin area.

Union Overall Garment

This Union overcall garment was used as a suit which is still commercially available. Depending on the…

Power door locks allow the driver or front passenger to simultaneously lock or unlock all the doors of an automobile or truck, by pressing a button or flipping a switch

Power Door Lock

Power door locks allow the driver or front passenger to simultaneously lock or unlock all the doors…

A headlamp is a lamp, usually attached to the front of a vehicle such as a car.

Dirigible Headlight

A headlamp is a lamp, usually attached to the front of a vehicle such as a car.

The lower jaw and teeth of the Megatherium, elephant sized sloth. The teeth are quandrangular, or triangular cylinder, shaped and grew during their life time.

Lower Jaw of Megatherium Fossil Skeleton

The lower jaw and teeth of the Megatherium, elephant sized sloth. The teeth are quandrangular, or triangular…

A cross sectional view of the melon fruit. The center of the melon have seeds connected to the placentas and separated by particions.

Cross Sectional View of Melon

A cross sectional view of the melon fruit. The center of the melon have seeds connected to the placentas…

This is a spark plug which fits into the cylinder head of some internal combustion engine and ignites compressed fuels such as aerosol gasoline.

Spark Plug

This is a spark plug which fits into the cylinder head of some internal combustion engine and ignites…

This is a convertible toy vehicle which resembles a cart wagon. The front set of wheels are smaller in diameter compared to the wheels in the rear.

Convertible Toy Vehicle

This is a convertible toy vehicle which resembles a cart wagon. The front set of wheels are smaller…

A cross sectional view of the Dicyemennea Eledones, a parasite, found in Eledone Moschata, or musky octopus.

Dicyemennea Eledones Worm Found in Kidney of Octopus

A cross sectional view of the Dicyemennea Eledones, a parasite, found in Eledone Moschata, or musky…

The illustration is showing both inside and outside view of the tadpole. The left inside view shows the tadpole with two front legs, heart, intestines, and gills. The right image shows the tadpole with frog like features with forelegs, back legs, and a tail.

Inside and Outside View of Tadpole During Metamorphosis

The illustration is showing both inside and outside view of the tadpole. The left inside view shows…

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 micrometer with the box removed from Cape Observatory. The device rotates the telescope accurately by turning the wheels. This view of the micrometer is attached to the base.

Repsolds Micrometer with Removed Box Cape Observatory

A micrometer with the box removed from Cape Observatory. The device rotates the telescope accurately…

This fly trap was intended to prevent pest intrusion from household windows. This trap features a fold down screen which allows a view of the immediate outside area, while restricting entrance to flies and other pests through a see-through screen.

Window Purpose Fly Trap

This fly trap was intended to prevent pest intrusion from household windows. This trap features a fold…

The illustration of putting lenses in front of the eye. The focal point of the image is reflected into the eye. The focal point in the lens will end past the eye, creating a blurry image.

Optical Position and Size of Image Through Lens in Front of Eye

The illustration of putting lenses in front of the eye. The focal point of the image is reflected into…

This medicinal needle is an enlarged view of early type acupuncture; the procedure in which an insertion of needles into various points on the body to relieve pain.

Medicinal Needle

This medicinal needle is an enlarged view of early type acupuncture; the procedure in which an insertion…

"The intersection of the principal rays lies in front of the object, and consequently objects in front of the plane focused for will be projected on E magnified and the objects lying behind it diminished ("hypercentric" transmission). It produces a perspective representation entirely opposed to ordinary vision." —Encyclopaedia Britannica, 1910

Hypercentric Transmission in Microscopic Objective

"The intersection of the principal rays lies in front of the object, and consequently objects in front…

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…

A low power simple expansion steam engine. The steam engine can run at 100 horsepower, and not run continuously. The as the piston in the cylinder expands, part of steam is exhausted into the surrounding. The piston then moves the wheel to generate power.

Low Power Simple Expansion Steam Engine

A low power simple expansion steam engine. The steam engine can run at 100 horsepower, and not run continuously.…

A Greenough's binocular light microscope. The microscope has two eyepieces to view the sample with both eyes. The mirror is used to provide a light source for the microscope by reflecting light.

Greenough's Binocular Light Compound Microscope with Mirror Reflecting Light Source

A Greenough's binocular light microscope. The microscope has two eyepieces to view the sample with both…

"The long lever D is pressed to one side by the screw F, and is thus turned round the in E. On the tube very near to pin E is cylinder C, which by the action of the screw F is very slightly raised or lowered." —Encyclopaedia Britannica, 1910

Swift and Son Micrometer Adjustment Lever for Microscope

"The long lever D is pressed to one side by the screw F, and is thus turned round the in E. On the tube…

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…

"Spirostreptus Vittatus, an Oriental species of the Spirostreptoidea, lateral view, showing the repugnatorial pores of the sides of the segments." —Encyclopaedia Britannica, 1910

Side View of the Spirostreptus Vittatus Millipede

"Spirostreptus Vittatus, an Oriental species of the Spirostreptoidea, lateral view, showing the repugnatorial…

An inside view of the Capell Fan for ventilation in mining. The fan removes the hazardous air from the mine to the atmosphere.

Capell Ventilation Fan for Mining

An inside view of the Capell Fan for ventilation in mining. The fan removes the hazardous air from the…

The front view of a minting press from 1882 Royal Mint. The coin is placed on slide J and lever M is pulled to press the design onto the coin.

Minting Press from Royal Mint Front View

The front view of a minting press from 1882 Royal Mint. The coin is placed on slide J and lever M is…

A side view of the coin press from the Royal Mint from 1882. The coining presses were modified by Uhlhorn of Grevenbroich. The big turns and releases the press to stamp the coins.

Minting Press from Royal Mint Side View

A side view of the coin press from the Royal Mint from 1882. The coining presses were modified by Uhlhorn…

The side view of 1802 Trevithick's Steam Carriage. This horseless carriage is operated by a steam engine in the back, rotating the wheels. The front wheels turn the vehicle, operated by the stick.

Side View of 1802 Trevithick Steam Carriage

The side view of 1802 Trevithick's Steam Carriage. This horseless carriage is operated by a steam engine…

An illustration of a six cylinder Rolls Royce Pullman limousine. The limousine operated at 40 to 50 horsepower with an open driver's compartment. The closed back compartment separated the passengers and the chauffeur.

Six Cylinder Rolls Royce Pullman Limousine

An illustration of a six cylinder Rolls Royce Pullman limousine. The limousine operated at 40 to 50…

A valve side view of the six cylinder Rolls Royce engine, showing the location of the magneto. The magneto is used to ignite fuel in the engine at a high voltage by using a spark plug's gap.

Valve Side View of Six Cylinder Rolls Royce Engine

A valve side view of the six cylinder Rolls Royce engine, showing the location of the magneto. The magneto…

This is a perspective illustration of common tool handles, here is displayed the side view, front view, and top view

Tool Handle

This is a perspective illustration of common tool handles, here is displayed the side view, front view,…

A six cylinder Rolls Royce engine viewed from the carburetor side. The carburetor is used to mix air and fuel in the engine.

Carburetor Side View of Six Cylinder Rolls Royce Engine

A six cylinder Rolls Royce engine viewed from the carburetor side. The carburetor is used to mix air…

An illustration of the Rolls Royce chassis with engine and axle viewed form the top. A chassis is the underneath frame and the gears in the car. The back axle is connected to the shaft coming from the engine.

Top View of Six Cylinder 1910 Rolls Royce Chassis with Engine and Axle

An illustration of the Rolls Royce chassis with engine and axle viewed form the top. A chassis is the…

A eight cylinder Bentley superheated steam engine fitted to a tractor. The steam is used to move the piston.

Bentley Eight Cylinder Diagonal Tandem Compound Superheated Steam Engine for Tractor

A eight cylinder Bentley superheated steam engine fitted to a tractor. The steam is used to move the…

"In this engine the cam—shaft by which the steam and exhaust valves are operated is situated midway of the shaft." —Encyclopaedia Britannica, 1910

Sheppee Motor Company Compact Double Acting SUperheated Engine

"In this engine the cam—shaft by which the steam and exhaust valves are operated is situated midway…

Illustration showing a twin cylinder steam engine fitted to a sentinel wagon. The steam expands and compresses as the piston oscillates. This oscillation rotates both the piston shaft and cam shaft, attached to the wheel.

Twin Cylinder Steam Engine Fitted to Sentinel Wagons

Illustration showing a twin cylinder steam engine fitted to a sentinel wagon. The steam expands and…

A side and inside view of the superheated steam vehicle. Water is heated by a heat transferred by the fuel in the front casing of the vehicle. The steam is transferred to the piston, underneath the vehicle, to be compressed and expanded. The piston shaft is moves the bar connected to the wheel to operate the vehicle.

Side and Inside View of Steam Operated Vehicle

A side and inside view of the superheated steam vehicle. Water is heated by a heat transferred by the…

A cigarette is a product consumed through smoking and manufactured out of cured and finely cut tobacco leaves and reconstituted tobacco, combined with other additives then rolled or stuffed into a paper-wrapped cylinder

Cigarette Packer

A cigarette is a product consumed through smoking and manufactured out of cured and finely cut tobacco…

An illustration of a steam wagon with a transmission with two side chains. The boiler is located on at the front, while the water tank is on the bottom back. The chain connects the back wheel and the engine.

Steam Wagon with Two Side Chains Transmitting Drive

An illustration of a steam wagon with a transmission with two side chains. The boiler is located on…

A Yorkshire steam wagon patent with unique boiler construction. The wagon operates with the drive chain connected to the back wheel to the intermediate shaft. The boiler is located at the front oriented sideways, while the engine is located behind the driver.

Yorkshire Steam Wagon Patent

A Yorkshire steam wagon patent with unique boiler construction. The wagon operates with the drive chain…

A superheated steam tractor built by Colonel Crompton. The boiler, located in the front, heats the water, then the steam enters the piston near the rear wheel. The large rear wheel is connected to the gears by a drive chain.

Colonel Crompton's Superheated Steam Tractor

A superheated steam tractor built by Colonel Crompton. The boiler, located in the front, heats the water,…

A side internal and chassis view of Albion car. The car has 16 horsepower and weighs 2 tons. The shaft, in the middle, comes from the engine to the back gears. The back gears are connected to the wheel by a driving chain.

Internal and Chassis View of Albion Car

A side internal and chassis view of Albion car. The car has 16 horsepower and weighs 2 tons. The shaft,…

A side internal and chassis view of the Halley's Van or Lorry. The vehicle have a 20 horsepower engine with gear box at the rear. The speed is adjusted by a lever, adjusting gears at the center. The outside gears are connected to the wheel by a drive chain.

Halley's Van or Lorry with Internal Combustion Vehicle Side and Chassis View

A side internal and chassis view of the Halley's Van or Lorry. The vehicle have a 20 horsepower engine…

A light with a reflector and lens mounted on the front of a locomotive, automobile, or other vehicle. Also called headlamp.

Automobile Headlight

A light with a reflector and lens mounted on the front of a locomotive, automobile, or other vehicle.…

A six cylinder fire engine with Gwynne centrifugal pump by Dennis Brothers Ltd. The engine have a retractable ladder, a bell in the front passenger, and hoses to connect to the pump. The pump is constructed with a turning circular disc inside to force the water flow out of the source.

Dennis Six Cylinder Fire Engine with Centrifugal Pump

A six cylinder fire engine with Gwynne centrifugal pump by Dennis Brothers Ltd. The engine have a retractable…

A Halley six cylinder fire engine with centrifugal pump. The fire engine pumps water from the tank in the back to put fire out with the junction hose (located on the side of the vehicle).

Six Cylinder Halley Fire Engine with centrifugal pump

A Halley six cylinder fire engine with centrifugal pump. The fire engine pumps water from the tank in…

A side view of Barford and Perkins water—ballast rollers. The vehicle operated using an internal combustion engine to turn the back tires by a drive chain and stopped by turning the wheel on the right. A stirring chain was connected from the front rollers to the large wheel.

Side View of Barford and Perkins Water Ballast Rollers

A side view of Barford and Perkins water—ballast rollers. The vehicle operated using an internal…

An internal combustible Barford and Perkins water ballast rollers chassis. The fuel tank is located directly in front the driver. The lever is connected to the gear box.

Chassis of Barford and Perkins Water Ballast Rollers

An internal combustible Barford and Perkins water ballast rollers chassis. The fuel tank is located…

A sleeveless garment, often having buttons down the front, worn usually over a shirt or blouse and sometimes as part of a three-piece suit.

Body Protector

A sleeveless garment, often having buttons down the front, worn usually over a shirt or blouse and sometimes…

An illustration of a school and the school's guild chapel with tree in front of it.

School and Guild Chapel

An illustration of a school and the school's guild chapel with tree in front of it.

A cross sectional view of an organ flue pipe. The compressed air is sent through A. As the air enters through the pipe, the lip, D, cuts the air. This produces sound for the organ.

Cross Sectional View of Organ Flue Pipe

A cross sectional view of an organ flue pipe. The compressed air is sent through A. As the air enters…

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 exterior view of a waters spring governor. The governor is used to regulate fuel by closing and opening the valves. The valve is opened or closed by rotating the two heavy balls.

Exterior View of Waters Spring Governor

An exterior view of a waters spring governor. The governor is used to regulate fuel by closing and opening…

A cross sectional view of the Pearsons turbine for generating electricity. The turbines, located in P are turned by steam, generating electricity.

Pearsons Turbine for Electricity Generator

A cross sectional view of the Pearsons turbine for generating electricity. The turbines, located in…

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…

"The cylinder covers are also made hollow to permit a circulation of live steam. A cylinder having the annular space (A) filled with steam is said to be jacketed. A liner, L, is often used in jacketed cylinders." —Derr, 1911

Jacketing Piston to Reduce Heat Loss

"The cylinder covers are also made hollow to permit a circulation of live steam. A cylinder having the…

A Watt's work diagram, or indicator diagram, for steam pressure in cylinder. The graph (top) illustrates how the piston will do work on the steam. The curved top portion is the steam expansion.

Watt's Work Indicator Diagram

A Watt's work diagram, or indicator diagram, for steam pressure in cylinder. The graph (top) illustrates…

"The indicator consists of a cylinder in which a piston is fitted, a spring, multiplying lever, and parallel motion for the pencil and cylinder or drum for the paper. The piston is fitted accurately to the cylinder and has a travel about one—half inch." —Derr, 1911

Thompson Indicator for Steam Engine

"The indicator consists of a cylinder in which a piston is fitted, a spring, multiplying lever, and…

"If only one indicator is to be used for both ends of the cylinder, it may be connected by side pipes and a three way (pipe valve). By this method both diagrams are taken on the same card and with the loss but one revolution." —Derr, 1911

Three Way Pipe Valve for Attaching One Steam Engine Indicator

"If only one indicator is to be used for both ends of the cylinder, it may be connected by side pipes…

A pantograph used to reduce motion of the piston. At point D, a string is attached to the indicator, measuring pressure of steam in cylinder. The pantograph is attached to a solid surface on top. As the piston moves, the pantograph pulls the string.

Motion Reduction using Pantograph of Piston Connected to Indicator of Steam Engine

A pantograph used to reduce motion of the piston. At point D, a string is attached to the indicator,…