Abstract: A mobile chair for the handicapped includes a seat frame, a front support frame and a removable rear support frame. The seal frame is pivotable with respect to the front support frame selectively to vary the position of the seat frame. The rear support frame is releasable from the front support frame and is connected thereto by a toggle mechanism at the rear and a pivotal releasable ball and socket joint at the front. To place the chair in a car or other vehicle, the front of the chair is first placed on the vehicle floor, the rear toggle connection is released and the seat frame and front support frame are placed on the vehicle seat. The ball and socket joint permits the seat frame and front support frame to be pivoted into the car and placed on the seat while the rear support frame remains essentially stationary outside the vehicle. Once the chair is in the vehicle, the ball and socket connection is released and the rear support frame may be removed and stowed elsewhere.

Abstract: This invention relates to an improved wheelchair adapted to provide enhanced mobility for the occupant together with making ground level activities available. The wheelchair comprises a main frame together with an extension frame telescopically secured to said main frame. A seat is operably secured to the extension frame so that when the extension frame is moved away from the main frame, the seat is lowered, and when said extension frame is brought back to said main frame, the seat is raised. Means are provided for further enhancing stability in the form of a mechanism to selectively move the drive wheels apart for wider wheel tracking. A rear wheel castered to the extension frame is provided with a selectively operable torsion limiter.

Abstract: In a folding wheelchair for the handicapped which includes a seat mounted on a lower frame provided with casters, the seat is supported on a pair of hinged rear struts which are lockable in an upright position and a pair of front links which are hinged to the front edge of the seat and pivotally connected to the lower frame at an intermediate location essentially along an axis extending laterally below the center of the seat.

Abstract: A wheelchair system comprises a substantially rigid seat adapted to be mounted on at least two alternative types of carriages having different drive arrangements each comprising a pair of molded plastic side frames which are interconnected by a bracing mechanism to permit the side frames to be folded together for collapsing the chair or spread apart for erecting the chair. A connecting system including locators which allow the seat to be placed on an approximately fully spread carriage and then to locate the side frames at the correct spacing from one another in order to ensure complete spreading of the carriage, and additionally retainers which allow the seat to be moved into a position in which it cannot be lifted from the thus spread carriage, the retainers allow positive engagement of the seat with the chair with the ability to spread the carriage solely by downward pressure on the seat, thereby enabling a disabled user of the wheelchair to be able to place the seat on the carriage ready for use.

Abstract: A kit for attaching a set of wheels to a folding chair, thereby making it into a wheelchair combination for non-ambulatory persons. The kit consists of two side braces and two cross braces that are detachably connected at the ends by means of corner joints so that they form a frame with wheels attached to its underside. Hook bolts with wing nuts are used to connect the frame to the folding chair for quick attachment. The side braces can be folded back at one end to form foot rests.

Abstract: A stroller base (A) detachably receives a seat structure (B) therein. The base includes forward wheel assemblies (12), rearward wheel assemblies (14) for rollably supporting the base, and wheel lock structures (60) for selectively locking the rear wheels against rotation. An upper base frame portion (20) is collapsable to a folded position (FIG. 3) and raiseable to a seat structure receiving position (FIG. 2). The upper base frame portion includes a channel guide (30) having a transverse slot (38) therein. The detachable seat structure includes a seat frame (80) with a plurality of patient supporting pads (90, 92, 94, 96) adjustably mounted thereon. Handles (84) selectively enable an attendant to lift a rearward portion of the detachable seat structure. A transverse seat frame member (88) is selectively received in the channel guide slot as the seat structure is positioned thereon and selectively lifted out of the channel guide slot as the seat is lifted therefrom.

Abstract: A foldable chair frame formed by elongate rigid members which are interpivotted and foldable into a compact bundle of elements. The rigid members include a base formed by a laterally collapsible X-frame, two back members, two lower brace members connected to two upper brace members by knuckle joints, two seat support members and two upwardly extending back rest members. The invention resides in the provision of a laterally collapsible bracing frame located at the lower end of the back members adjacent the X-frame and arranged to be locked to hold the chair in the unfoldable (usable) position while permitting the back rest members to be moved between a forward position, suitable for a person sitting in the chair, to a backward position, suitable for a person reclining in the chair.

Abstract: A racing sulky adapted to be drawn by a horse between laterally adjustable guide shafts, said sulky having rider support means including a transverse bar which journals the sulky wheels. A stabilizing bar engages the respective wheel axles, and is longitudinally adjustable to individually regulate wheel alignment.