ClipArt ETC
An illustration of a young boy driving a horse drawn buggy with two other children riding.

Boy and Buggy

An illustration of a young boy driving a horse drawn buggy with two other children riding.

An illustration of children driving a buggy pulled by horses through a town.

Children Driving Buggy Through Town

An illustration of children driving a buggy pulled by horses through a town.

The driving gear is a machine component consisting of a toothed wheel attached to a rotating shaft. Gears operate in pairs to transmit and modify rotary motion and torque (turning force) without slip, the teeth of one gear engaging the teeth on a mating gear. If the teeth on a pair of mating gears are arranged on circles, i.e., if the gears are toothed wheels, the ratios of the rotary speeds and torques of the shafts are constant.

Driving Gear

The driving gear is a machine component consisting of a toothed wheel attached to a rotating shaft.…

There are about 50 different styles of hammers, each one having a trade name. They are of every size, from a tack-hammer, weighting a few ounces, up to the blacksmith's great straight-handled sledge-hammer, weighing twenty pounds or more. Many are named after the trade in which they are used.

Types of Hammers

There are about 50 different styles of hammers, each one having a trade name. They are of every size,…

A mallet is a type of hammer with a head made of softer materials than the steel normally used in hammerheads, so as to avoid damaging a delicate surface.

Mallets

A mallet is a type of hammer with a head made of softer materials than the steel normally used in hammerheads,…

One sort of pump once common worldwide was a hand-powered water pump over a water well where people could work it to extract water, before most houses had individual water supplies.

Hand Operated Pump

One sort of pump once common worldwide was a hand-powered water pump over a water well where people…

An illustration of a woman driving a carriage and talking to a man.

Woman Driving Carriage

An illustration of a woman driving a carriage and talking to a man.