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Everest and Jennings saw the business potential of the invention and went on to become the first mass-market manufacturers of wheelchairs.

Their "X-brace" design is still in common use, albeit with updated materials and other improvements.

Rigid wheelchairs, which are increasingly preferred by full-time and active users, have permanently welded joints and many fewer moving parts.

This reduces the energy required to push the chair by eliminating many points where the chair would flex and absorb energy as it moves.

This allows for more mechanically efficient propulsion by the user and also makes it easier to hold a straight line while moving across a slope.

Sport wheelchairs often have large camber angles to improve stability.

Folding chairs are generally low-end designs, whose predominant advantage is being able to fold, generally by bringing the two sides together.

As this causes friction and heat build-up, particularly on long downslopes, many wheelchair users will choose to wear padded wheelchair gloves.Welded rather than folding joints also reduce the overall weight of the chair.Rigid chairs typically feature instant-release rear wheels and backrests that fold down flat, allowing the user to dismantle the chair quickly for storage in a car.Some wheelchairs are designed for general everyday use, others for single activities, or to address specific access needs.Innovation within the wheelchair industry is relatively common, but many innovations ultimately fall by the wayside, either from over-specialization, or from failing to come to market at an accessible price-point.

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