Abstract: A transmission structure of a helicopter according to one aspect is a transmission structure that transmits power from a prime mover to a rotary wing in the helicopter. The transmission structure includes: a housing; an input shaft that transmits the power of the prime mover to a gear arranged in the housing; a bearing supporting the input shaft in the housing such that the input shaft is rotatable, the bearing including an annular inner ring that holds the input shaft, an annular outer ring that is arranged outside the inner ring in a radial direction and fixed to the housing, and rolling elements sandwiched between the inner ring and the outer ring; and a sleeve that is sandwiched between an inner peripheral surface of the inner ring and the input shaft and is lower in heat conductivity than the inner ring and the input shaft.

Abstract: A toroidal continuously variable transmission including a power roller; a support supporting the power roller rotatably; a thrust bearing receiving a load of the power roller in a direction along a rotating axis; and an oil passage supplying lubricating oil to the thrust bearing. A surface of the power roller opposing the support includes a first bearing grooved and the support opposing the power roller includes a second bearing groove. A virtual axis of a discharge port in the oil passage reaches a bearing groove that is one of the first bearing groove and the second bearing groove. Viewed from a direction perpendicular to the rotation axis, a portion of a retainer located at a radially inner side of a retaining hole of the retainer and a portion located at a radially inner side of the bearing groove are located at sides opposite to each other across the virtual axis.

Abstract: A gas turbine engine including: an exhaust diffuser including an inner tube and an outer tube that form therebetween an annular exhaust passage; a bearing chamber formed radially inside the inner tube for accommodating a bearing that supports a rotor of a turbine; a plurality of hollow struts extending across the exhaust passage; an oil introduction passage extending through one of the struts for introducing oil to be supplied to the bearing chamber; an oil drain passage extending through one of the struts for draining the oil from an exhaust oil inlet opened on a bottom surface of the bearing chamber; and an oil discharge passage for discharging a portion of the oil having passed through the oil introduction passage toward the oil drain inlet.

Abstract: A transmission cooling assembly of a helicopter includes: a transmission including a speed change structure that changes the speed of rotation produced by rotational power input from a prime mover and outputs the resulting rotational power and a housing accommodating the speed change structure; a cowl covering at least a part of an outer surface of the housing, with a gap defined between the cowl and the outer surface; and a flow structure that allows external air to flow through the gap.

Abstract: A transmission lubricating assembly of a helicopter includes: a transmission including a speed change structure that changes the speed of rotation produced by rotational power input from a prime mover and outputs the resulting rotational power and a housing accommodating the speed change structure; and a lubricator that lubricates the speed change structure. The lubricator includes a collector that collects a mist of a lubricating oil in an internal space of the housing and a dropper that is disposed below the collector and that applies droplets of the lubricating oil to the speed change structure, the droplets resulting from the collected mist being gathered under its own weight.

Abstract: A gas turbine engine including: an exhaust diffuser including an inner tube and an outer tube that form therebetween an annular exhaust passage; a bearing chamber formed radially inside the inner tube for accommodating a bearing that supports a rotor of a turbine; a plurality of hollow struts extending across the exhaust passage; an oil introduction passage extending through one of the struts for introducing oil to be supplied to the bearing chamber; an oil drain passage extending through one of the struts for draining the oil from an exhaust oil inlet opened on a bottom surface of the bearing chamber; and an oil discharge passage for discharging a portion of the oil having passed through the oil introduction passage toward the oil drain inlet.

Abstract: A heat exchanger 1 comprises a shell 2 which has in an interior thereof a heat exchange chamber 20 in which a gas to be cooled or an intermediate medium is filled, and performs heat exchange directly or indirectly between liquid hydrogen and the gas to be cooled, in the interior of the heat exchange chamber 20; a tray 23 which is provided in the interior of the heat exchange chamber 20 and receives a liquefied gas and a deposited substance F which are generated by the heat exchange in the interior of the heat exchange chamber 20; and a liquid discharge mechanism (flashboard 22, drain port 25, and drain pipe 26) which discharges the liquefied gas from the tray 23 in a state in which the deposited substance F is left in the tray 23.

Abstract: A heat exchanger 1 comprises a shell 2 which has in an interior thereof a heat exchange chamber 20 in which a gas to be cooled or an intermediate medium is filled, and performs heat exchange directly or indirectly between liquid hydrogen and the gas to be cooled, in the interior of the heat exchange chamber 20; a tray 23 which is provided in the interior of the heat exchange chamber 20 and receives a liquefied gas and a deposited substance F which are generated by the heat exchange in the interior of the heat exchange chamber 20; and a liquid discharge mechanism (flashboard 22, drain port 25, and drain pipe 26) which discharges the liquefied gas from the tray 23 in a state in which the deposited substance F is left in the tray 23.

Abstract: A hydrogen fuel supply system 1 comprises a tank 2 which stores liquid hydrogen therein; a supply line 4 which takes the liquid hydrogen out of the tank 2, vaporizes the liquid hydrogen into a hydrogen gas, and supplies the hydrogen gas to a use point 3; and a pressurization line 5 which compresses the hydrogen gas generated by vaporization of the liquid hydrogen inside the tank 2 by use of a compressor 59 so that a pressure of the hydrogen gas is increased, and sends the hydrogen gas with the increased pressure to a gaseous phase part inside the tank 2.

Abstract: A transfer tool having a transfer film remover for abrading and removing various transfer films transferred on a sheet of paper or the like without scratching or staining the paper surface. A transfer film remover for abrading and removing a transfer film transferred on a sheet of paper or the like is provided in part of a case of a transfer tool for transferring coat film or other transfer film on a transfer tape onto a sheet of paper or the like. By the exclusive transfer film remover always furnished in the transfer tool, the transfer film transferred on the transfer area can be abraded and removed, and hence it is not dropped or lost.

Abstract: A transfer tool having a transfer film remover for abrading and removing various transfer films transferred on a sheet of paper or the like without scratching or staining the paper surface. A transfer film remover for abrading and removing a transfer film transferred on a sheet of paper or the like is provided in part of a case of a transfer tool for transferring coat film or other transfer film on a transfer tape onto a sheet of paper or the like. By the exclusive transfer film remover always furnish in the transfer tool, the transfer film transferred on the transfer area can be abraded and removed, and hence it is not dropped or lost.

Abstract: A transfer tool having a transfer film remover for abrading and removing various transfer films transferred on a sheet of paper or the like without scratching or staining the paper surface. A transfer film remover for abrading and removing a transfer film transferred on a sheet of paper or the like is provided in part of a case of a transfer tool for transferring coat film or other transfer film on a transfer tape onto a sheet of paper or the like. By the exclusive transfer film remover always furnished in the transfer tool, the transfer film transferred on the transfer area can be abraded and removed, and hence it is not dropped or lost.

Abstract: A sheet carrying apparatus reduces skew of a sheet during carriage, and realizes high-quality print. A position detecting sensor detects a position in a direction perpendicular to a sheet carrying direction of the sheet carried by a sheet carrying roller. A skew angle of the sheet is calculated depending upon a deviation of the detected position from a predetermined reference position. Load rollers are on the right and left sides with respect to a sheet center line in the sheet carrying direction, and are respectively opposed to following rollers through the sheet so as to bring the sheet into pressure contact. A torque limiter to apply a braking force to the load roller, and the load roller are coupled or released by electromagnetic clutches. Thereby, the carrying forces can independently be controlled on the right and left sides of the sheet depending upon the skew angle.

Abstract: A sheet carrying apparatus reduces skew of a sheet during carriage, and realizes high-quality print. A position detecting sensor detects a position in a direction perpendicular to a sheet carrying direction of the sheet carried by a sheet carrying roller. A skew angle of the sheet is calculated depending upon a deviation of the detected position from a predetermined reference position. Load rollers are on the right and left sides with respect to a sheet center line in the sheet carrying direction, and are respectively opposed to following rollers through the sheet so as to bring the sheet into pressure contact. A torque limiter to apply a braking force to the load roller, and the load roller are coupled or released by electromagnetic clutches. Thereby, the carrying forces can independently be controlled on the right and left sides of the sheet depending upon the skew angle.

Abstract: In a data compression system, a digital signal comprising a series of digital samples and a sampling datum indicating the sampling interval of the digital samples are written into a read-write memory (M2). The digital samples and the associated sampling datum are read out of the memory into first and second digital-to-analog converters (DAC1, DAC2), respectively. The output of the first digital-to-analog converter is applied to a variable frequency low-pass filter (5) to remove the components having frequencies higher than a presettable frequency limit value which is variable as a function of the output of the second digital-to-analog converter so that the cut-off frequency is lower than one-half the sampling frequency to eliminate quantum noise.

Abstract: A data compression system comprises an analog-to-digital converter for quantizing the analog signal at a first sampling frequency into a series of digital samples and a memory for storing the digital samples. A control circuit generates a sampling datum indicating a variable sampling frequency lower than the first sampling frequency as a function of the instantaneous frequency of the analog signal for selecting digital samples from the memory, reads the selected digital samples out of the memory means in response to the sampling datum, and forms the sampling datum and the selected digital samples into a data set. A series of data sets may be transmitted to a receiving end of the system or stored in a recording medium. The sampling datum is used to indicate the point at which the digital sample is converted to a corresponding analog value.

Abstract: In a data compression system, a digital signal comprising a series of digital samples and a sampling datum associated with each digital sample is received by a decoder. The sampling datum indicates the sampling interval of the associated digital sample. The decoder includes a microcomputer for storing the digital signal into a memory (M2) and reading each digital sample and the associated sampling datum. The digital sample is divided by the sampling datum to derive a quotient which indicates the slope of the signal to be recovered. The quotient is integrated by an integrator (6b) to provide interpolation between successive sampling points, so that the original signal is approximated by a plurality of line segments.

Abstract: Improved method and device for feeding a specific length of wrapping paper to a packaging section in a coin packaging machine are disclosed, wherein the improvement consists in that every cycle of wrapping paper feeding is carried out by way of the steps of forwarding a certain length of wrapping paper to the packaging section by means of wrapping paper feeding rollers until the leading end part of the forwarded wrapping paper is brought to the position located at the side of one of wrapping rollers, firmly holding the wrapping paper against the guide wall of a guide passage, displacing a movable guide away from the latter, carrying out an additional feeding in dependence on the selected diameter of coins to be packaged and cutting off the wrapping paper to the specific length by thrusting it against a cutting knife while it is stretched.

Abstract: According to a first aspect of the invention, a diffraction compensation circuit is employed to relatively raise the level of an input electrical audio signal at low frequencies. A speaker is driven in response to the output signals of the diffraction compensation circuit, thereby offsetting a diffraction characteristic inherent in a speaker enclosure. According to a second aspect of the invention, the radiation surface of the vibrating member of a speaker is made flat. The speaker is installed in an enclosure in such a manner that the flat surface of the vibrating member is flush with the exterior surface of the enclosure, thereby reproducing an audio signal with high fidelity.

Abstract: This invention provides a composition for coating plastics articles comprising (A) a hydrolyzed product of an organoalkoxysilane represented by the formulaR.sup.1.sub.n Si(OR.sup.2).sub.4-n (I)wherein R.sup.1 is a saturated or unsaturated hydrocarbon residue having 1 to 4 carbon atoms, R.sup.2 is a saturated hydrocarbon residue having 1 to 4 carbon atoms, and n is 0, 1 or 2, (B) an epoxy resin having an epoxy equivalent of about 120 to about 700, and (C) a bicyclic amidine represented by the formula ##STR1## wherein m is 3 or 5, or a salt thereof; a method of coating plastics articles with use of the composition; and plastics articles having a cured coating of the composition.