Abstract: A radiation imaging apparatus provided with a pulse height analyzer for checking whether the pulse height of the energy signal produced in response to each scintillation event falls within an energy window set for the particular (x,y) coordinate position of the scintillation. The pulse height analyzer has a memory for storing a plurality of energy windows each for a particular one of the coordinate positions in the scintillator and each having a particular central level and a particular width such that the nonuniformity of the sensitivity of the detector due to the position-dependency of the energy signal and/or other causes can be corrected. A preliminary pulse height analyzer may be provided to increase the counting rate of energy signals useful for image production.

Abstract: The present invention relates to a pistol grip implanter device adapted for insertion of a solid or semi-solid pellet form medicament into a domestic animal, associated with a hub for an encasement containing a multiplicity of dosage unit pellets of the medicament.

Abstract: A densitometer wherein a sample to be measured is illuminated and the light transmitted through or reflected by the sample is passed through a slit and dispersed by a dispersing element so that a spectral image of the sample as defined by the slit is formed on the image plane of the dispersing element. A plurality of image sensors each comprising a linear array of photodiodes are disposed on the image plane in such a manner that each of the image sensors substantially conform to one of the images of the slit formed by different wavelengths. The outputs from the photodiodes are processed by a computer to provide desired information about the sample.

Abstract: A stack of aligned workpieces is placed in a frame body, and a mask is positioned over the stack of workpieces in alignment therewith. The frame body is then moved into an exposure device in which the mask is transferred from the frame body onto a transparent plate and the workpieces are transferred successively from the frame body onto the transparent plate. The workpieces are exposed successively to the mask. The exposed workpieces are then discharged successively out of the exposure device. The mask is transferred from the transparent plate back to the frame body after all of the workpieces have been exposed. The frame body with the mask carried therein is moved out of the exposure device.

Abstract: An improved injectionable viscoelastic gel for use in opthalmic surgical and treatment procedures, wherein the gelling agent is a high molecular weight polyacrylamide or polymethacrylamide.

Abstract: A double-beam spectrophotometer which uses an integrating sphere for measurement of the total reflected light from a sample or only the diffuse reflection component thereof. The sphere is provided with a first pair of windows in which a sample and a reference are detachably and exchangeably set and a second pair of windows through one of which one of a sample and a reference light beam enters the integrating sphere so as to impinge perpendicularly on said sample or reference set in one of said first pair of windows, while through the other of said second pair of windows the other of said sample and reference light beams enters said integrating sphere to impinge aslant on said reference or sample set in the other of said first pair of windows. The positions of said sample and reference are exchanged in accordance with the type of measurement to be made.

Abstract: An exposure apparatus for projecting a certain pattern predrawn on a printed board, an integrated circuit or the like on a sheet of film to print the pattern on the sheet. A mask body on which a certain pattern is drawn is held so that it can rotate relative to a film-like body, and when the mask body and the film-like body are held in a certain positional relation during exposure, no gap is formed between these bodies.

Abstract: A combination of a plate for exposure, such as a printed circuit board, having a pair of photosensitive layers formed on its opposite surfaces, and a pair of transparent frame plates between which the plate for exposure can be sandwiched, and which are each provided with a mask on its surface facing the plate for exposure. The plate for exposure is formed with a pair of apertures adjacent to each of a pair of opposite edges thereof. Each of the frame plates is provided adjacent to each of a pair of opposite edges thereof with a pin facing one of the apertures and a recess facing the other aperture. The pin on one of the frame plates faces the recess in the other frame plate. The pins are so sized and shaped that they can be easily fitted in, and removed from the apertures, and can hold the frame plates against displacement relative to the plate for exposure when fitted in the apertures.

Abstract: A double-beam spectrophotometer comprising a light source, a monochromator, optical means for causing the monochromatic light beam from the monochromator to alternately advance along a pair of optical paths, the axes of which intersect generally perpendicularly to each other, a pair of cells each disposed in one of the two optical paths, and a photoelectric detector disposed at or adjacent the point of intersection of the pair of optical paths.

Abstract: A method and apparatus for connecting wire to insulation displacement-type, circuit board-mounted electrical contacts comprises automatic positioning and orienting of individual contacts relative to a wire insertion head. A portion of wire is fed from a supply to the tip of a pusher which inserts this portion into fingers of the contact; another contact is positioned and oriented relative to the pusher to receive a second portion of the wire and provide a wire run between the contacts. The wire run can be terminated at the last contact without repositioning the contact and pusher relative to each other, with the remaining supply wire being prepared for another insertion.

Abstract: The insulated walls of a refrigerator chamber are pressurized so as to maintain a pressure within the insulated interior of the walls that is slightly higher than the exterior ambient air pressure. This is accomplished by means of small fans or the like blowing outwardly and mounted on the interior of the walls.

Abstract: A hand tool for deburring or chamfering a work piece, of the kind comprising: a mount, a handle solid with the mount, a cutting tool adjustably secured to the mount so as to present a cutting edge substantially perpendicular to the handle and the mount, and a bearing member, characterized in that the bearing member is mounted adjacent the cutting tool and is provided with two side faces defining therebetween an angle of 45.degree. to bear on the respective sides of the edge of the work piece, the bearing member having at least one fulcrum, an imaginary line joining the fulcrum with the cutting edge being inclined relative to the axis of the handle by an angle in the range of 8.degree. to 16.degree..

Abstract: A spectrophotometer which can be used selectively as a single-beam and a double-beam type and comprises a light source, a monochromator, a chopper mirror for causing the monochromatic light beam from the monochromator to alternately advance along a first and a second path, in which a reference and a sample cell are disposed respectively, a beam combiner for causing the alternate beams to advance along a common path leading to a photoelectric detector, and a mirror movable for selective positioning in and out of the monochromatic light beam between the monochromator and the chopper mirror.

Abstract: Musical bellows instrument comprising an electro-pneumatic switching device, operated by the change in air pressure generated by the bellows movement to control a set of control gates for the registers, sets of registers or effect circuits of the musical instrument. The switching device comprises a fixed section secured to the instrument and a movable section secured to a flexible membrane sealing in an opening communicating with the interior of the bellows.

Abstract: An immobilized saccharifying enzyme product formed by coating granular casein with a liquid-permeable proteinaceous layer comprising saccharifying enzyme and egg albumen cross-linked by reaction with glutaraldehyde.

Abstract: Improved formation of enzyme granulates through inclusion within the composition of finely divided cellulose fibres.Optionally a waxy substance can be employed for the granulating agent, or to coat the granulate.