1927 Ahrens-Fox Model MX-4 Pumper Fire Engine

Fire was a constant menace to American cities well into the 20th century, when most buildings were made of wood and firefighting equipment was underpowered and overmatched. Firefighters risked their own lives to save those of others, to protect property, and to constrain and contain blazes before they grew into uncontrollable conflagrations. Early firefighting relied on mettle, muscle, and machinery that improved slowly but steadily over time.

Spinning frames spin cotton fiber into yarn and then wind it onto a bobbin. This throstle spinning frame could simultaneously spin 64 strands of yarn. (Throstle -- an old name for a song thrush -- refers to the bird-like sounds the machine made.) Machines like this helped produce the large quantities of yarn that growing industrial weaving operations needed in the early and mid-1800s.