The Machine Parts ClipArt gallery offers 194 illustrations of couplings, valves, escapements, pumps, governors, and more.

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…

This illustration shows an Anzani Radial Motor with stationary cylinders and its many parts: Exhaust Valve, Valve Tappet, Air-Cooled Cylinders, Magneto, Carburetor, Gasoline Supply Pipe, Induction Tube, Intake Valve.

Anzani Radial Motor, with Stationary Cylinders

This illustration shows an Anzani Radial Motor with stationary cylinders and its many parts: Exhaust…

An example of a pulley system.

Applied Mechanics

An example of a pulley system.

A device intended to prevent combustible materials, usually sparks or other tiny flaming debris, from escaping into areas

Spark Arrestor

A device intended to prevent combustible materials, usually sparks or other tiny flaming debris, from…

An astragal attachment for a hand crank lathe. Astragals are used to create mouldings with a raised bead with narrow fillet on each side.

Lathe Attachment Turning Astragals

An astragal attachment for a hand crank lathe. Astragals are used to create mouldings with a raised…

"On the two vertical sides of the block there are screwed on two flat pieces of steel, that have holes near their lower ends, in which the worm journals run. The worm and the worm—wheel gear with each other. The worm is turned by a small hand wheel." —Grimshaw, 1902

Lathe Turning Astragals

"On the two vertical sides of the block there are screwed on two flat pieces of steel, that have holes…

The spindle at either end of an axletree.

Shaft Axle

The spindle at either end of an axletree.

Bashforth Chronograph. A, flywheel turning cylinder B on which the record is marked; C, toothed wheel driving drum D, which unwinds the spring E and allows the platform F to slide down the groove G; H, H, electromagnets connected with the first and second screen respectively (shown in small upper diagram)

Bashforth Chronograph

Bashforth Chronograph. A, flywheel turning cylinder B on which the record is marked; C, toothed wheel…

a ball bearing is a type of rolling-element bearing which uses balls to maintain the separation between the moving parts of the bearing.

Ball Bearing

a ball bearing is a type of rolling-element bearing which uses balls to maintain the separation between…

A band used in transmitting power from one wheel to another.

Belt

A band used in transmitting power from one wheel to another.

This illustration shows a Blake Ore Breaker (stone crusher), used in a gold stamp mill. This crusher breaks the large, mined rocks containing the gold (ore) into small pieces, to then be reduced to the finest powder by stamps.

Blake Ore Breaker

This illustration shows a Blake Ore Breaker (stone crusher), used in a gold stamp mill. This crusher…

A bolt that has an attachment that expands as the bolt is driven into a surface

Expansion Bolt

A bolt that has an attachment that expands as the bolt is driven into a surface

The hub of a wheel, through which the axle passes; The journal box of a rotating axle, especially a railway axle

Axle Box

The hub of a wheel, through which the axle passes; The journal box of a rotating axle, especially a…

The box or ring of metal connecting the contiguous ends of two lengths of shaft.

Coupling Box

The box or ring of metal connecting the contiguous ends of two lengths of shaft.

A simple rigid structure in the shape of an L, one arm of which is fixed to a vertical surface, the other projecting horizontally to support a shelf or other weight.

Aluminum Bracket

A simple rigid structure in the shape of an L, one arm of which is fixed to a vertical surface, the…

Automatic vacuum-brake, showing its general arrangement.

Brake

Automatic vacuum-brake, showing its general arrangement.

Rapid acting vacuum-brake valve

Brake

Rapid acting vacuum-brake valve

"Lord Kelvin patented a brake in 1858 consisting of a rope or cord wrapped round the circumference of a rotating wheel, to one end of which is applied a regulated force, the other end being fixed to a spring balance." -Britannica, 1910

Brake

"Lord Kelvin patented a brake in 1858 consisting of a rope or cord wrapped round the circumference of…

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…

A gas burner is a device to generate a flame to heat up products using a gaseous fuel such as acetylene, natural gas or propane. Some burners have an air inlet to mix the fuel gas with air to make a complete combustion.

Gas Burner

A gas burner is a device to generate a flame to heat up products using a gaseous fuel such as acetylene,…

A common piece of laboratory equipment that produces a single open gas flame, which is used for heating, sterilization, and combustion.

Gas Burner

A common piece of laboratory equipment that produces a single open gas flame, which is used for heating,…

"Shore end of cable, exact size, from a Sounding Machine."—E. Benjamin Andrews 1895

cable

"Shore end of cable, exact size, from a Sounding Machine."—E. Benjamin Andrews 1895

A wheel or part of a wheel, or irregular outline, employed to produce a variable or alternating motion in machinery.

Cam-wheel

A wheel or part of a wheel, or irregular outline, employed to produce a variable or alternating motion…

A device used in internal-combustion engines to produce an explosive mixture of vaporized fuel and air.

Small Use Carbureter

A device used in internal-combustion engines to produce an explosive mixture of vaporized fuel and air.

A device in an internal combustion engine where fuel is vapourized and mixed with air prior to ignition

Engine Carburetor

A device in an internal combustion engine where fuel is vapourized and mixed with air prior to ignition

"A valve in pumps with a single flap, hinged at one edge, and consisting of a plate of leather a little larger than the valve aperture. The valve box is generally one and a half times the diameter of the valve opening." — Williams, 1889

Clack-valve

"A valve in pumps with a single flap, hinged at one edge, and consisting of a plate of leather a little…

A clutch in which one part turns the other by the friction between them

Friction Clutch

A clutch in which one part turns the other by the friction between them

A mechanism for transmitting rotation, which can be engaged and disengaged. Clutches are useful in devices that have two rotating shafts. In these devices, one shaft is typically driven by a motor or pulley, and the other shaft drives another device.

Roller Clutch

A mechanism for transmitting rotation, which can be engaged and disengaged. Clutches are useful in devices…

a conductor, as a copper wire, wound up in a spiral or other form.

Spiral Conducting Coil

a conductor, as a copper wire, wound up in a spiral or other form.

"The operation of the condenser is the reverse of that of the air pump, and is a much more simple machine. The air pump, will deprive a vessel of its ordinary quantity of air. The condenser, on the contrary, will double or treble the ordinary quantity of air in a close vessel according to the force employed. This instrument consists of a pump barrel and piston, a, a stop-cock b, and the vessel c furnished with a valve opening downwards. The orifice d is to admit the air, when the piston is drawn up to the top of the barrel." —Comstock, 1850

Condenser

"The operation of the condenser is the reverse of that of the air pump, and is a much more simple machine.…

A belt conveyor consists of two or more pulleys, with a continuous loop of material, the conveyor belt which rotates about them. One or both of the pulleys are powered, moving the belt and the material on the belt forward. The powered pulley is called the drive pulley while the non powered pulley is called the idler. There are two main industrial classes of belt conveyors; Those handling such as those moving boxes along inside a factory and bulk material handling such as those used to transport industrial and agricultural materials. Generally in outdoor locations. Generally companies providing general material handling type belt conveyors do not provide the conveyors for bulk material handling. In addition there are a number of commercial applications for belt conveyors such as those in grocery stores.

Conveyer Belt

A belt conveyor consists of two or more pulleys, with a continuous loop of material, the conveyor belt…

An diagram showing a belt conveyor from the top and side illustrating the arrangement of the drive end.

Belt Conveyor

An diagram showing a belt conveyor from the top and side illustrating the arrangement of the drive end.

"The metal cut away near the center reduces the weight and provides passages for air circulation." — Hawkins, 1917

Solid core disk

"The metal cut away near the center reduces the weight and provides passages for air circulation." —…

A kind of permanent coupling which consists of two disks keyed on the connected ends of the two shafts.

Disk Coupling

A kind of permanent coupling which consists of two disks keyed on the connected ends of the two shafts.

A kind of permanent coupling in which the boss ends of the connected shafts are made of semi&mdashcylindrical, so that they overlap each other.

Half Lap Coupling

A kind of permanent coupling in which the boss ends of the connected shafts are made of semi&mdashcylindrical,…

A connector on the end of a hose to connect (or couple) it with another hose or with a tap or a hose appliance, such as an irrigation sprinkler. It is usually made of steel, brass, stainless steel, aluminium or plastic.

Hose Coupling

A connector on the end of a hose to connect (or couple) it with another hose or with a tap or a hose…

A device for connecting railway cars or trucks together.

Rail Coupling

A device for connecting railway cars or trucks together.

A form of coupling belonging to the class of friction couplings.

Slip Clutch Coupling

A form of coupling belonging to the class of friction couplings.

A kind of permanent coupling in which the coupling box is made in half and square.

Square Coupling

A kind of permanent coupling in which the coupling box is made in half and square.

A kind of permanent coupling in which the coupling box consists of a plain ring of metal, supposed to resemble a tailor's thimble.

Thimble Coupling

A kind of permanent coupling in which the coupling box consists of a plain ring of metal, supposed to…

"The simplest idea of a crank is that of a handle to a wheel; its action is familiarly illustrated in the process of drawing water from a well: the bent handle attached to the wheel is first pushed out, then pulled in the opposite direction, and thus a continued rotatory motion is produced upon an axle. The application of this principle to the steam engine, and the variations of pressure on the crank of a steam enginre, may be conveniently illustrated by curves." —Comstock, 1850

Crank

"The simplest idea of a crank is that of a handle to a wheel; its action is familiarly illustrated in…

"When set full gear forward, the valve admits steam to the crank end of the cylinder, and the crank revolves as shown by the arrow. As the crank turns, both eccentrics impart motion to the link, but the "go ahead" link pin H approximately coincides with the link block." —Derr, 1911

Eccentric Motion of the Steam Engine Crank in Full Gear

"When set full gear forward, the valve admits steam to the crank end of the cylinder, and the crank…

A beam or rod stretching across the top of something; specifically, the bar at the end of a piston rod of a steam engine, which slides on ways or guides fixed to the bed or frame of the engine.

Crosshead

A beam or rod stretching across the top of something; specifically, the bar at the end of a piston rod…

"Rollers of cube-cutting machine." — Encyclopedia Britannica, 1893

Cube-cutting

"Rollers of cube-cutting machine." — Encyclopedia Britannica, 1893

"This is the curve of the heart cam for converting uniform rotary motion into uniform reciprocal motion." —French, 1911

Curve, Heart Cam

"This is the curve of the heart cam for converting uniform rotary motion into uniform reciprocal motion."…

In the gold extraction process, finely crushed ores are leached in vats with a very diluted solution of Potassuim Cyanide (KCN), containing 0.05 to 0.3 percent KCN (or its equivalent, Sodium Cyanide, NaCN) which is allowed to remain for twelve to twenty-four hours to dissolve the gold.

Cyanide Leaching Tank (Gold Extraction)

In the gold extraction process, finely crushed ores are leached in vats with a very diluted solution…

A movable iron plate that regulates the draft in a stove or chimney or furnace

Furnace Damper

A movable iron plate that regulates the draft in a stove or chimney or furnace

A set of mechanical gears that eqaulises the power between the left and right drive wheels, particularly when cornering, when the outside wheel travels further than the inside wheel.

Gearing Differential

A set of mechanical gears that eqaulises the power between the left and right drive wheels, particularly…

A hinged or sliding door in a floor, roof, or ceiling.

Trap Door

A hinged or sliding door in a floor, roof, or ceiling.

This illustration shows a double discharge mortar, used in a Stamp Mill.

Double Discharge Mortar

This illustration shows a double discharge mortar, used in a Stamp Mill.

"The first alteration to be noticed in the double-acting engine is that of the cylinder. To insure its double action, it is necessary to provide, at each end of the cylinder, a means of admission of steam from the boiler, and of escape for the steam to the condenser. Hence the double action, which means that the piston is both raised and depressed by the force of steam. For this purpose, a steam box is fixed to each end of the cylinder, communicating, in the one case with the upper, in the other with the lower, surface of the piston. B is the upper, and and B' the lower, steam box. Each of these boxes is furnished with two valves." —Comstock, 1850

Double-acting Cylinder

"The first alteration to be noticed in the double-acting engine is that of the cylinder. To insure its…

"The first alteration to be noticed in the double-acting engine is that of the cylinder. To insure its double action, it is necessary to provide, at each end of the cylinder, a means of admission of steam from the boiler, and of escape for the steam to the condenser. Hence the double action, which means that the piston is both raised and depressed by the force of steam. For this purpose, a steam box is fixed to each end of the cylinder, communicating, in the one case with the upper, in the other with the lower, surface of the piston. B is the upper, and and B' the lower, steam box. Each of these boxes is furnished with two valves." —Comstock, 1850

Double-acting Cylinder

"The first alteration to be noticed in the double-acting engine is that of the cylinder. To insure its…

"A section through the valve casing of a double-column hammer, fitted with a valve v provided with three pistons."—Finley, 1917

Valve casing of a double-column hammer

"A section through the valve casing of a double-column hammer, fitted with a valve v provided with three…

This is the body attachment for a drilling machine which is composed of the adjustable socket which houses the drill bit component that actually makes contact with the material.

Drill and Socket Construction

This is the body attachment for a drilling machine which is composed of the adjustable socket which…

"A drill to which a steady momentum is imparted by means of a fly-wheel having a reciprocating motion like that of the balance-wheel of a watch." -Whitney, 1911

Fly Drill

"A drill to which a steady momentum is imparted by means of a fly-wheel having a reciprocating motion…

"In machinery, a drum of adjustable diameter used with a belt to effect changes as desired in the speed of machinery." -Whitney, 1911

Expansion Drum

"In machinery, a drum of adjustable diameter used with a belt to effect changes as desired in the speed…

Electrical Fuze

Electrical Fuze

Electrical Fuze

"Drawing showing arrangement of elevator in square steel elevator casing." -Meese, 1913

Bucket Elevator

"Drawing showing arrangement of elevator in square steel elevator casing." -Meese, 1913

"Drawing showing arrangement of "Gravity Discharge" Bucket Elevator." -Meese, 1913

Gravity Discharge Bucket Elevator

"Drawing showing arrangement of "Gravity Discharge" Bucket Elevator." -Meese, 1913

"Drawing showing arrangement of "Perfect Discharge" Bucket Elevator." -Meese, 1913

Perfect Discharge Bucket Elevator

"Drawing showing arrangement of "Perfect Discharge" Bucket Elevator." -Meese, 1913