From hand-pushed chairs to motors
Wheeled chairs for people who cannot walk are old. Writers often point to Stephan Farffler, a German watchmaker who is said to have built a hand-cranked chair for himself in the seventeenth century, and to the Bath chair of the eighteenth century, which was pushed or pulled by an attendant. The widely used folding steel chair came in 1933, when Harry Jennings and Herbert Everest, who had been injured in a mining accident, built a lighter X-frame design. Their company, Everest & Jennings, became the leading manufacturer for years.
That history is about manual chairs. The electric wheelchair addressed a different problem: people whose arms were too weak or too injured to push a chair, or who could not push it far.
The first electric wheelchair is disputed
Patents and prototypes for motorized chairs appear from the early twentieth century, and some inventors fitted engines or electric motors to existing chairs. No single machine is clearly the first, partly because such devices were custom builds and not mass products. The development most often credited is the work of George Klein, a Canadian engineer at the National Research Council of Canada, who led a team that built electric wheelchairs in the early 1950s for veterans injured in the Second World War, including those with spinal cord injuries. It is commonly described as the first practical electric wheelchair. Klein worked in a research setting with rehabilitation specialists, and his team is part of a wider postwar effort to provide mobility to injured service members.
Why wartime mattered
The Second World War and later conflicts left large numbers of injured veterans who needed equipment, and governments in several countries funded rehabilitation research. Medical advances also meant that more people survived severe spinal cord injuries. Engineers adapted electric motors and batteries from other industries, as with vehicles and industrial equipment, to create chairs that someone could drive using a small switch.
Controls: from switches to joysticks
Early powered chairs often used simple switches or levers for forward, backward and turning. A major improvement was the proportional joystick, which lets the user vary speed and direction smoothly with small hand movements. Joystick control developed over the following decades, and the details are hard to credit to one person. Manufacturers and research groups introduced it in various forms in the 1950s and later.
For people with limited hand function, designers added other controls. These include chin-operated joysticks, head switches and sip-and-puff controls that respond to breath. In the 1980s microprocessors allowed chairs to be programmed for individual users, with settings for acceleration, speed and how sensitive the control should be. Later systems added seat functions such as tilt, recline and elevation, controlled by the same electronics.
Batteries and design
Powered chairs generally relied on a sealed lead-acid battery pair for decades, a durable but heavy choice that suited the weight of the chair. Lithium-ion batteries have been used more recently in some designs, especially lighter folding chairs and add-on drive units that attach to a manual chair. Alongside chairs, mobility scooters, which have a tiller and a seat, grew as a separate product aimed at people who can walk short distances but tire easily.
Social change
Powered mobility is tied to changes in how societies treat disability. The independent living movement, which grew in the United States from the 1960s and 1970s, argued that disabled people should be able to make choices about where and how they live, and reliable mobility equipment was part of that. Laws such as the Americans with Disabilities Act of 1990 addressed access to public places, which made the chairs more useful. Insurance and public funding rules for chairs vary greatly between countries, and the details are outside the scope of a short history.
Related technologies
Powered chairs are one branch of assistive technology. Others in the same family include prosthetic limbs, robotic exoskeletons that support assisted walking, and research on brain-computer interfaces, which some teams have used to control wheelchairs in experiments. These are separate developments, and each has its own history. Medical and rehabilitation decisions about mobility equipment belong with clinicians; this article describes history only.
Summary
The electric wheelchair shows how an existing tool, the manual chair, was changed by electric motors, better controls and policy. No single moment created it: postwar research gave it a practical form, later electronics refined it, and social change broadened its use. For many people, the result is greater independence in daily life.