Abstract: An optical pickup transducer senses vibrations of string instruments transducing the vibrations into an electrical signal with fidelity, high signal-to-noise ratio and with exclusion of extraneous effects such as noise. The transducer includes a housing with an upper deck that holds one or more light emitters, and a lower deck that holds light sensors in a one-to-one arrangement with the emitters so that each sensor is physically in opposition to each emitter. For application to the string instruments, each string is conducted through the light beam between an emitter and a sensor. The sensors may be photodiodes, so that their electrical output is related to the amount of incident light and therefore varies with the movement of the string, that is, the string modulates the incident light on the photodiode. This electrical output is then amplified to drive a loudspeaker.

Abstract: An improved luminometer is provided which uses a top loading plate carrier which receives a microtitration plate and uses a mask having an aperture corresponding to each test cell in the plate carrier. When the mask rotates downwardly to cover the microtitration plate, the plate carrier automatically orients the microtitration plate in the X, Y and Z directions. Reagents are added to the individual test cells through the mask aperture. Each reagent injector is extendable and retractable so that liquids can be added below the mask aperture during purging or washing and then the injector retracted. A pump is provided for each injector which is driven by a stepper motor and a rack and pinion connection to a syringe.

Abstract: This invention relates to the creation of a different styled batt from tufts of fiber for delivery to textile machinery. In particular, the batt formed in the style of this invention is particularly suited for delivery to a carding machine. Carding machines are able to more fully utilize fiber processing capacity with lower risk of becoming overloaded because the tufts are less able to be pulled out of the batt intact but are held back allowing for the lickerin roll or other feed arrangement to pull fiber out of the batt in a more continuous and uniform manner.

Abstract: The present invention relates to an off-press apparatus for laminating an image sheet to an image receiving substrate and, more particularly, for laminating a plurality of image sheets to the receiving substrate and then laminating a portion of the receiving substrate to a display sheet.

Abstract: The present invention relates to an apparatus for processing a photosensitive element and, more particularly, for processing an aqueous developable photosensitive element which contains colorant. The apparatus comprises a a primary developing station for washing away most non-image portions from the element and a secondary developing station for washing away a remainder of the non-image portion. After the element is processed by the apparatus, the processed element forms a colored image on a support.