Abstract: An inexpensive, disposable tray for anesthesiological use is formed with a central compartment for receiving the patient's head, preferably on a supporting cushion, and arrangements of compartments and recesses on opposite sides of the central compartment to hold specific instruments and medications used during anesthesia in an ordered array according to the sequence in which such articles are employed. The tray is dimensioned to fit across the end of an operating table. Projections along one edge support a suction tube and a manometer.

Abstract: A support cushion for medical use, especially during surgery, to support the patient's head and neck in convenient positions without patient damage includes two portions made of polyurethane foam separably joined by hook and loop fasteners or the like. The portion normally on top when the two are used together has a hemispherical depression in the top, a groove extending outwardly from the depression, dihedral plane surfaces extending out from the groove and a rectangular bottom surface. The bottom portion has a rectangular top surface, a V-shaped groove in the bottom and planar surfaces on either side of the V-groove lying in a plane which makes an acute angle of about 7.degree. with the plane containing the top.

Abstract: A method and apparatus for administering anesthesia to a patient is shown. A control module may be connected through an inhalation breathing circuit to a patient with a portion of the mixed/expired gases being rebreathed by the patient thus improving humidification and heat retention. By use of a CO.sub.2 analyzer in the control module, the CO.sub.2 content of the expired gas is accurately measured with any necessary adjustments being made in the gases delivered to the patient. The control module includes an O.sub.2 analyzer, adjustable pressure warning and control device, pressure gauge, manually controlled scavenger valve, and bacterial filter connected thereto. An anesthesia ventilator or breathing bag may be used in conjunction with the control module for administering anesthesia or transportation of the patient.

Abstract: A valve lapping tool for lapping globe type valves comprises a clamp device for clamping the valve disc to the valve stem and includes an annular body member having radially directed clamping members for clamping engagement with the valve stem and axially directed clamping members for clamping engagement with the valve disc for preventing relative rotation of the disc and stem during the lapping operation. The lapping operation is carried out on valves such as globe valves by loosening the valve bonnet to permit rotation of the valve stem without axial movement of the valve disc, the clamping of the disc to the valve stem by means of a clamping device, application of lapping compound to the valve face and seat and positioning of the valve in the valve seat and rotation of the valve stem in alternate directions until the valve is properly seated.

Abstract: Improved method, and apparatus for practicing the method, for determining parameters of a staple length distribution of fibers in a yarn sliver by feeding the yarn sliver to and between two pairs of drafting rolls initially spaced apart at a greater distance than the longest fiber in the yarn sliver and monitoring the drafting force exerted upon the yarn sliver while continuously decreasing the distance between the pairs of drafting rolls and monitoring the distance, and generating signals representative of the drafting force and distance and feeding them, respectively, to the Y-axis and X-axis of a X-Y recorder and drawing a curve therefrom from which the desired parameters can be determined.