Abstract: A system for automatically feeding a chemical liquid to a cooling tower includes a water reservoir for storing water circulating through the cooling tower, a water feeding pipe extending into said water reservoir, a float valve provided in a passage of said water-feeding pipe, which is actuated in response to a variation in a water level in said water reservoir to open or close said passage, a means for increasing the flow rate of water flowing through said passage to inject water from a discharge port at the time when said float valve opens, a negative pressure generating chamber located in said passage and defined by said injection of water and a chemical liquid pipe in communication with said negative pressure generating chamber. A chemical liquid in the chemical liquid pipe is injected with water from the discharge port through the negative pressure generating chamber under the action of a negative pressure generated therein.

Abstract: In a fluorescence spectrophotometer comprising a light source, an excitation monochromator, a sample cell, an emission monochromator, a photodetector and a signal processing device, an excitation light polarizer and an emission light polarizer are disposed in the excitation light path and the emission light path, respectively, and the excitation and emission light wavelengths of the two monochromators are changed simultaneously in accordance with each of a plurality of wavelength conditions, and in each of the wavelength conditions, the direction of polarization of the emission light polarizer is changed between two orthogonal directions, in each of which the output of the detector is sampled by the signal processor, and the processed data is stored so as to be used for calculation of the degree of polarization of the polarized fluorescent light from the sample.

Abstract: A linear axis (cantilevered beam) is longitudinally displaceable relative to its support which, in turn, is displaceable laterally along an overhead frame so as to provide X-Y positioning for pick and place spindles and similar tools which are attached to the beam. A particular structural combination for accomplishing this involves a low inertia servomotor driving a speed reducer which, in turn, directly drives a short endless timing belt which, in turn, intermeshes with and drives a toothed rack in order to provide reliable, with zero backlash, high accuracy X-Y positioning of the tools. Features of the structural arrangement allow the use of component parts requiring much less precision, and thus much less cost, of manufacture than prior art, zero backlash, linear axis positioning systems.

Abstract: In a computed tomograph wherein an object to be examined is scanned with a beam of light in a scanning plane and a photodetector receives the light transmitted through the object so that a tomographic image of the object is obtained, there is provided a holder for holding the object in the scanning plane, which comprises two separate portions arranged at the opposite sides of the scanning plane, each of the two separate portions having a supporting surface at substantially the same level for supporting at least a portion of the object being examined.

Abstract: In manufacture of an automobile tire, a method and a device for making a bead apex/bead ring assembly. More particularly, a method and a device for automatically applying an extruded belt-like rubber material generally referred to as "bead apex" or "bead filler" onto a core material referred to as "bead ring" which is previously mounted on a circular holding device referred to as "former" to make a bead ring/bead apex assembly. In the proposed method and device, the "apex" is drawn out from an extruder or a roll and fed to the "bead ring" and, then it is wound around and bonded to the outer periphery of the "bead ring" with rotation of the "former", and at least the leading end of the apex is caught and restrained by a holding device during at least a period from the start to the end of the apex applying process.

Abstract: This invention provides an electronic balance comprising a housing; weighing means enclosed in the housing; a pan on which an object to be weighed is placed and having a space under the top plate thereof; a sensing member having one end connected to the weighing means and projecting out of the housing top wall, with the other end of the sensing member being connected to and supporting the pan outside the housing; a calibration weight arranged in the space under the pan; and operating means for loading and unloading the calibration weight on and from the sensing member. There are disclosed a variety of constructions of the operating means.

Abstract: The invention is directed to a method and apparatus for selectively and simultaneously drilling a plurality of holes in thin panels such as printed circuit boards, while providing for automatic changing of the drill bits, individually or plurally, as required. A tray of drill bits is driveable in X and a row of vacuum pickers are driveable in Y, so that the various bit locations of the tray are addressable by such X-Y positioning, and selectable vacuum pickers are extensible and retractable so as to pick and place the drill bits at various matrix locations of the tray. The vacuum pickers also are extensible and retractable through corresponding tray openings in order to deliver replacement bits to, and retrieve used bits from, a flipper assembly associated with each drilling module.

Abstract: In quantitative analysis of a sample by using the spectrum thereof by means of a spectrophotometer, at a specific wavelength or in a specific wavelength range where a quantitative determination is to be conducted, wavelength scanning is temporarily stopped or its speed is slowed down so as to obtain spectral data from the sample, so that the accuracy of the data obtained is improved. In the wavelength range where no quantitative determination is to be conducted, the scanning operation is conducted at an ordinary relatively fast speed, so that the total time required for the analysis will not be lengthened.

Abstract: An ice rink dasher board system having an adjustable shock absorbing mechanism for providing a desire degree of resiliency of the dasher board panels is disclosed. The dasher board system may also have a rink seal gasket located between the dasher board frame and the dasher board panels, the gasket extending beneath the system to permit installation of the system even or uneven surfaces. The dasher board system may also include a door having a push-button latch that can be actuated from either side of the door.

Abstract: The present invention is directed to a feeder cassette for feeding electronic components into a component processing unit. The cassette includes an assembly body having a plurality of slots formed on opposing interior sides thereof to form channels within the assembly body. The channels are designed to receive a plurality of components therein, preferably in pre-packed flat tubes. A leaf spring having a button projecting from the distal end of each of the fingers of the leaf spring permits only the components from a desired "activated" channel to be released. The cassette is indexed forwardly until all of the components have been released from each of the channels sequentially. The buttons of the spring fingers also serve to hold the components within the cassette if the cassette is withdrawn from the feeder unit at any time prior to fully emptying the tubes.

Abstract: A movable partition wall comprising a plurality of panels connected together. A pillar may be interposed between adjacent panels so that the panels are connected together with downwardly bent connecting claws which engage connecting holes in the pillar. An upper horizontal surface of each panel is provided with a ridge or groove having tapered side surfaces. A connector is provided which bridges the horizontal surfaces of adjacent panels and which is provided with a tapered portion which communicates with the corresponding ridge or groove on the panels. In the event that a pillar is used, a bolt is inserted through a central portion of the connector and is screwed into a nut supported on the pillar.

Abstract: A hollow metallic sealing ring of low-load, self-energizing, static kind is characterized in that in radial cross-section it is of modified parabolic form with convergent margins (M) with a radial width, in its relaxed state, which is equal to substantially 7/8ths (0.875) of its maximum length (A) measured in the direction parallel to the axis of the ring.

Abstract: Method and apparatus for emisson spectroscopic analysis by spark discharge, wherein each and every one of a number of spark discharges conducted for analysis of a sample comprises a high energy portion providing a sufficient amount of energy to vaporize the elements contained in the sample and a low energy portion providing a sufficient amount of energy to cause the vaporized elements to emit light, and wherein spectroscopic measurement is conducted in the low energy portion, or initiated in the end portion of high energy portion to continue in the low energy portion.

Abstract: A combination of a shoe and a foot bed in which a predetermined foot girth is obtained by inserting a foot bed having a three dimensional shape adaptable to the shape of a bottom of a foot, for which the degree of fitness has been confirmed by placing a foot thereon, into a shoe having a foot length of a standard size and a foot girth larger than a standard size.

Abstract: A wire drive apparatus for the wire saw which is favorably used, particularly for cutting the structures of reinforced concrete with the wire saw and movable on the base surface such as the surface of the road or floor without using cranes is disclosed.

Abstract: A cassette-like supply and peel assembly of a tape feeder, comprising the support and guide for an electrical component supply tape and the mechanism for peeling a cover from the tape, is removably interconnectable with a drive assembly which provides motive power to the peeler and stepwise feeding of the tape. The length of the feeding steps is adjustable according to the center-to-center distances between components, which can vary from tape to tape. An operator can adjust the step length from the rear of the feeder by varying one limit of a stroking length of the feeder.

Abstract: The present device is directed to a nozzle tip for the head of a pick and place device for arranging electronic components as desired on a substrate. The tip permits both first and second vacuum areas to be selectively generated, thus facilitating the pick-up of components of widely varying sizes and shapes with a single tip.

Abstract: Sheets for use in correspondence which can be used for postcards, etc. are disclosed. The correspondence sheets consist of twice-folded sheet displaying information on the inside, clear resin films coated on the inside each-other-facing surfaces of the twice-folded sheet in a manner that they can hardly be peeled off, and a temporary adhesive layer which connects the each-other-facing clear resin films in a manner that they can be later peeled off and also the peeled surface thus formed has no tackiness. The sheets will be peeled off at the temporary adhesive layer by the receiver, and the peeled surface on each side after the unfolding is covered with clear resin film having no tackiness.

Abstract: An exposure apparatus comprising lighting means such as ultra-violet lamp and reflecting mirror placed in an exposure room and also tray arranged to move in and out from the exposure room, wherein cooling means is provided. The cooling means blows cold air onto the surface of the tray.A cooling room is formed next to the exposure room. The cooling means is composed of air radiator and air fan. Refrigerant such as cold water passes through the air radiator and the air fan blows air in the cooling room onto the surface of the tray through the radiator. Exhaust fan arranged to send air in the exposure room into the cooling room is also provided between the exposure room and the cooling room.