摘要:
The present invention provides a process for producing a grid for use in lead acid batteries which comprises superposing a sheet or a foil of a lead alloy on a sheet bar composed of a lead-calcium alloy, said sheet or foil of lead alloy having a composition different from that of the sheet bar and having a thickness smaller than that of the sheet bar, followed by integrating the two materials by cold rolling process to form an elementary sheet and then subjecting the elementary sheet to an expanding or punching processing.The grid obtained according to this process is improved in the charging recovery characteristics after standing in a superdischarged state and in the corrosion resistance of grid at high temperatures without deteriorating the maintenance-free characteristics of the lead-calcium alloy itself.
摘要:
A water-resistant and high-strength laminate which comprises a base cloth of woven or knitted cloth obtained by weaving or knitting warps and wefts wherein at least a portion of warps and/or wefts is ultra-high-strength-polyethylene filaments and a majority of the rest is polyester fibers, at least one surface of said base cloth being laminated with a biaxially oriented polyester film through an adhesive layer.
摘要:
A method of correcting the aberration of an electron beam due to astigmatism and field curvature of focus by feeding a correction current through stigmator coils and a focus correction coil. The correction currents are determined by measuring a sharpness P of the electron beam. The sharpness P is defined as a product of p.sub.x, a sharpness measured when the electron beam is deflected in X direction, and p.sub.y, a sharpness measured when the electron beam is deflected in Y direction: P=p.sub.x .times.p.sub.y. The use of the sharpness P provides good convergence of the measurements and it becomes possible to calibrate the electron beam for many points in the scanning field. Thus, it is possible to attain maximum resolution over an entire scanning field. Optimum correction currents are determined from data obtained by varying each correction current while keeping the other correction currents constant to obtain several values of P and then using a least square approximation of the measured values of P with a quadrature curve.
摘要:
An electronic apparatus includes a plurality of selectively actuable selection devices for causing the apparatus to perform a plurality of distinct operations. A first actuation of a selection device establishes a first condition to cause the apparatus to generate an externally detectable identification such as by voice synthesis of the selected operation, and a second actuation of the selection device establishes a second condition to cause the apparatus to perform the selected operation and identify the operation on a display. In a preferred embodiment, the selection devices are each a push button actuable from a rest position to a first depressed position to establish the first condition by actuating a first switch, and thereafter actuable from the first depressed position to a second depressed position to establish the second condition by actuating a second switch.
摘要:
A copier includes a lower housing and an upper housing which is pivotally connected to the lower housing so as to be pivotted open and closed with respect thereto. An installation space is defined in the copier in which a unit having a photosensitive member may be detachably mounted. A pair of guide rails is fixedly provided on the upper housing and a pair of guide projections is fixedly provided on the unit, so that the pair of guide projections is slidingly engaged with the pair of guide rails, respectively, such that the unit may move between an inoperative position and an operative position. The lower housing is provided with a spring which imparts a biasing force to the unit so as to locate the unit at the operative position when the upper housing is pivotted closed with respect to the lower housing. In another embodiment, a locking mechanism is provided in the upper housing so as to releasably lock the unit at the operative position.
摘要:
.alpha.-(2,6-dimethyl-4-carboxyphenyl)-2-methyl-5-(1-imidazolyl)-benzenemethanol, pharmaceutically acceptable metal salts forms thereof, acid addition salt forms thereof, amino acid addition salt forms thereof, hydrate forms thereof and mixtures thereof.Such compounds have inhibitory activities on biosynthesis of thromboxane A.sub.2, inhibitory activities on platelet aggregation, vasodilative activities and protective effects against liver disorders.
摘要:
An electron beam exposure apparatus includes an electromagnetic-type deflector for deflecting an electron beam in accordance with an analog signal corresponding to a digital signal which specifies an exposure region of a sample and an electrostatic-type deflector for deflecting the electron beam to a desired position in the exposure region. A difference signal representing the difference between the analog signal and a reference analog signal corresponding to the digital signal is taken out for compensating the amount of deflection of the electron beam in the electrostatic-type deflector.
摘要:
A wireless telephone apparatus is disclosed which includes an acoustic transmission apparatus employing a telephone handset for use during a normal telephone conversation mode and a telephone headset for use during a hands-free telephone conversation mode. No speaker and microphone are used during the hands-free telephone conversation mode. The acoustic transmission apparatus includes a control section which normally connects the telephone handset to the wireless telephone apparatus, but is responsive to the operation of a selector or headset switch to connect the telephone headset without interrupting the telephone conversation. Similarly, the control section enables the user to switch back to using the telephone handset without interrupting the telephone conversation. A visual display is provided to indicate whether the telephone handset or the telephone headset is connected to the wireless telephone apparatus.
摘要:
A pickup arm device comprising a rotary bearing having a mounting bed rotatable about both the vertical and horizontal axes, and an arm assembly consisting of an arm, a cartridge mounting head shell at one end thereof, a rider weight at the other end thereof and a mount or saddle which is formed between the ends thereof and adapted to be slidably mounted on the mounting bed of the rotary bearing, whereby the arm assembly including a cartridge may be easily replaced.
摘要:
In an electronic radio frequency tuner of the type having a source of digital signals representing radio frequencies to which the tuner is tuned and an addressable memory, a memory control circuit includes an addressing circuit having an operative state for selectively providing address-identifying signals which select respective addresses of the memory, a write-in control circuit for writing a digital signal into a selected address of the memory, a further memory for selectively memorizing one of the digital signals from the source and one of the address-identifying signals from the addressing circuit, and a switching circuit for selectively supplying one of the digital signals or one of the address-identifying signals to the further memory in accordance with the state of the addressing circuit.