Abstract: A system for detecting a transfer of article comprising a card attached to the article and a detector. When the article having the card is transferred to a monitoring area, electromagnetic signals are transmitted in advance from the detector to the monitoring area, and received by the card. Then, high frequency signals are transmitted from the card to the detector, thereby a transfer of the article can be detected.

Abstract: In construction of a golf club head having a fiber reinforced plastic shell, the neck section of the shell provides the first hold and an inward bulge on the sole side section of the shell provides the second hold, both for the club shaft so that presence of a dual hold joint structure enables effectual energy transmission at hitting balls and reliably prevents accidental separation of the club head from the club shaft.

Abstract: Sheet stacks bordered by sheet markers are sequentially fed from a pile of aligned and stacked sheets containing sheet markers inserted into these sheets through end wall at specific intervals with bare portion left outside, using a sheet stack delivery apparatus including at least lifter means that mounts sheet stacks to allow the uppermost sheet stack to be sequentially transferred to a pre-determined level; a wedge-type head for separating sheet stacks comprising its tip part facing the end wall of the sheet pile at a position close to the sheet marker bordering the uppermost and the second sheet stacks and also the upper tilt surface and the bottom surface ending at the tip part; and means for transferring the uppermost sheet stack by holding and pushing forward an end wall of the uppermost sheet stack split by the wedge head.

Abstract: A method and apparatus for measuring the orientation of the constituents of sheets are disclosed. The method comprises the steps of inserting a sheet into a small clearance with which the openings in a pair of waveguides are opposed to each other to form a cavity resonator, producing a relative motion at a constant speed between the sheet and the resonator while emitting linearly polarized microwaves from the upper waveguide to allow them to fall on the sheet at right angles thereto, measuring the amount of attenuation of the microwaves by the lower waveguide, and determining the orientation of the constituent of the sheet from that angle of the sheet with respect to the plane of polarization of the microwaves which gives the maximum attenuation.

Abstract: A wood-type golf club head containing a fiber reinforced plastic outer shell formed by heat pressing in a mould, around an intermediate shell. A solid center core is formed inside the intermediate shell by injection of foam synthetic resin for reduced generation of harsh and keen noises at hitting balls, ideal transmission of striking energy to balls and high durability against shocks by hitting balls. The elastic modulus of the outer shell material is greater than that of the intermediate shell material. The buckling strength of the intermediate shell material is greater than that of the foam resin core material.

Abstract: A laser thermal printer is disclosed. The printer comprises a CO.sub.2 gas laser light source, a modulator for the laser beam from said laser source, an optical scanning system for scanning the laser beam, which is passed through said modulator, transversely of a predetermined recording surface while focusing it on said surface, and a web feed mechanism for feeding a heat-sensitive recording web, which presents said recording surface, in a direction at right angles with the direction of said beam scanning.

Abstract: The present invention relates to a serial printer comprising the mechanism for selecting one type by moving the mounted printing wheel and the carrier for moving said mechanism on the print sheet, has the object that the printing can be done at the maximum speed which is the optimum for the print wheel even in case any kind of printing wheel is mounted and is characterized in that the carrier shifting speed can be changed in accordance with the inertia of printing wheel and a shifting distance of printing wheel.

Abstract: The present invention relates to a high speed printing system, in which the printing intensity of each type element, applied onto a record media, is varied in accordance with the surface area of the type element. The system employs a double control mode, in each hammering operation, for carrying out the variation of the printing intensity. The double control mode is comprised of a first control mode and a second control mode, which follows immediately after the first control mode. In the first control mode, a maximum energizing current is supplied to a hammer means, comprising a dc motor, for hammering a selected type element to produce a desired character on the record media. In the second control mode, an energizing current is applied to the hammer means. The latter energizing current has variable peak amplitude which is suitable for carrying out fine control of the printing intensity in accordance with the size of the surface area of each type element.