Abstract: An adjustable cab isolator bracket is provided for adjusting the height of an isolated cab of a locomotive. Alternatively, the adjustable bracket may adjust spring loading of an isolated locomotive cab. The adjustable cab isolator bracket generally comprises a spring retainer adapted to engage a spring and mountable to the underframe, and a bracket body for receiving and engaging the spring retainer and mountable to the cab. The adjustable bracket may further be fixed to the isolated locomotive cab. In this arrangement, the bracket body is adapted to receive and engage at least a portion of the spring retainer. The engagement between the spring retainer and the bracket body is adaptable to selectively adjust a portion of the spring retainer to be received by the bracket body in relation to a spring, thereby adjusting cab height or spring loading in relation to the underframe.

Abstract: Provided is a cab isolation system for a locomotive is provided including a cab having a front and a rear. The cab isolation system further includes a pivot located generally near the rear of the cab and at least one spring generally located near the front of the cab. In another embodiment, dampers may further be provided and generally located near the front of the cab. In another embodiment, lateral links may further be provided and generally located near the front of the cab. This system may include any of the above elements, alone or in combination, to provide for a cab isolation system for isolating a locomotive cab from engine generated structure borne noise and vibration, while lower frequency track induced motions are not magnified.

Abstract: The present invention generally relates to a new valve guide for use in an exhaust valve system. Specifically, the invention is related to a valve guide that prevents acidic corrosion between the valve and the valve guide. The valve guide includes a number of contact portions, which engage the channel that is formed in the cylinder head near the exhaust port. The valve guide also includes a recess portion, situated in relation to a water jacket and between the contact portions. The recess portion and contact portions are sized and shaped to maintain the surface temperature of the valve guide to prevent condensation of acidic gases between the valve stem and the valve guide.

Abstract: Metering apparatus for controlling the flow of fluid through a fluid infusion system at an operator-designated rate includes a single-use cassette having a syringe-type pump in the flow system. The cassette is removably mounted on actuator apparatus which drives the syringe plunger through alternate fill and pump modes to advance fluid through the system. To provide compensation for the lack of flow in the system during fill strokes, the plunger is advanced at a higher compensation rate for first and second portions of the pump stroke immediately preceding and immediately following each fill stroke, with the pump stroke advancing at the designated rate therebetween. This results in an average flow rate which corresponds to the designated rate. By making the first and second compensations of equal duration, the effect of the fill cycles on the regularity of the average flow rate is minimized.

Abstract: A system for infusing fluids into the human body includes a peristaltic-type metering apparatus which controls the flow of fluid through a disposable administration set at a preset rate. A compensating circuit within the metering apparatus automatically varies the operating rate of the metering apparatus to compensate for dimensional variations in the apparatus and the tubing.

Abstract: An apparatus for warming blood and other parenteral fluids as they are infused through a disposable flow system includes a pair of heating elements which heat the blood as it passes through a warming bag provided in the flow system. The heating elements are recurringly switched on and off with a duty cycle dependent on both the temperature of the blood at the output of the warming bag and the temperature differential between the output and input of the bag to maintain the blood at a predetermined temperature independent of flow rate. A digital display and monitoring circuit provides a highly accurate digital indication of blood temperature and interrupts the application of power to the heating elements in the event the temperature exceeds a predetermined maximum level.

Abstract: An optical scrambler for depolarizing a beam of polarized incident light comprises two birefringent prisms having orthometric optic axis. The prisms are juxtaposed with their inclined surfaces joined in optically wrung relationship to receive the incident light with the axis of polarization thereof aligned at 45 degrees with respect to the optic axis of the prisms.