Abstract: A power assisted wheeled carriage includes a patient support having a length, a wheeled base supporting the patient support, and an auxiliary wheel mechanism including an auxiliary wheel spring support for biasing an auxiliary wheel into contact with a floor. The carriage further includes a control apparatus for moving the auxiliary wheel away from the floor. The auxiliary wheel spring support can be a spring steel member having an opening and biased to move the auxiliary wheel into contact with the floor. The control apparatus can include a foot pedal for turning a rotatable shaft that enables a cam apparatus to apply an upward force to the auxiliary wheel. The wheeled carriage also includes a drive handle pivotable about a single axis to control a drive motor for the auxiliary wheel. The drive handle controls driving of the wheeled carriage in forward and rearward directions. Safety sensors on the drive handle require grasping thereof at a specific location to operate the carriage.

Abstract: A power assisted wheeled carriage includes a patient support having a length, a wheeled base supporting the patient support, and an auxiliary wheel mechanism including an auxiliary wheel spring support for biasing an auxiliary wheel into contact with a floor. The carriage further includes a control apparatus for moving the auxiliary wheel away from the floor. The auxiliary wheel spring support can be a spring steel member having an opening and biased to move the auxiliary wheel into contact with the floor. The control apparatus can include a foot pedal for turning a rotatable shaft that enables a cam apparatus to apply an upward force to the auxiliary wheel. The wheeled carriage also includes a drive handle pivotable about a single axis to control a drive motor for the auxiliary wheel. The drive handle controls driving of the wheeled carriage in forward and rearward directions.

Abstract: A Prusik knot has several helical wraps around a tether line or a lifeline, a longitudinal loop extending over the wraps, and free end portions tucked or threaded under the loop. A special cover encases the free end portions of the knot.

Abstract: A Prusik knot has several helical wraps around a tether line or a lifeline, a longitudinal loop extending over the wraps, and free end portions tucked or threaded under the loop. A special cover encases the free end portions of the knot.

Abstract: A bracket has downwardly-projecting parallel legs for embracing and being secured to opposite sides of a rafter and an upwardly-projecting central portion having an aperture for connection of a standard snaphook or carabiner to which a lifeline can be attached. The legs of the bracket can be interconnected by a bolt extending through or below the rafter. In addition or alternatively, the bottom end portions of the legs can be bent inward underneath the bottom of the rafter. The bracket is used in a fall prevention safety system in which the lifeline tethers a roofer or other worker to the anchor.

Abstract: A bracket has downwardly-projecting parallel legs for embracing and being secured to opposite sides of a rafter and an upwardly-projecting central portion having an aperture for connection of a standard snaphook or carabiner to which a lifeline can be attached. The legs of the bracket can be interconnected by a bolt extending through or below the rafter. In addition or alternatively, the bottom end portions of the legs can be bent inward underneath the bottom of the rafter. The bracket is used in a fall prevention safety system in which the lifeline tethers a roofer or other worker to the anchor.

Abstract: A staple is cut from a steel sheet with two parallel legs of rectangular cross section joined at one end by a broader web portion. The staple is driven partway into a roof understructure, leaving the web spaced therefrom to define an aperture for connection of a fall restraint lifeline to the staple which acts as an anchor for the lifeline.

Abstract: Crystalline, non-hygroscopic adinazolam methanesulfonate, per se, preparable from xylene or preferably from a C.sub.1 to C.sub.2 -alkanol/C.sub.4 to C.sub.6 -alkyl acetate liquid mixture, aids processability of adinazolam methanesulfonate in pharmaceutical production plants.