摘要:
A lock stitch sewing machine with an automatic thread tension adjusting device is disclosed, wherein the sewing machine has a plurality of thread tension adjusting mechanisms 7, each of which including a pair of thread tension disks 12, 13, one of which is normally pressed by a spring toward the other. A sensor 4 is responsive to the operation of a thread tension releasing lever 20 made by a user with a slight touch applied thereto to give a signal. A CPU1 is responsive to the signal to compare the value of the existing thread tension of the thread tension adjusting mechanisms 7 with a predetermined one. If the value of the existing thread tension is higher than the predetermined one, the CPU1 is operated reduce the value of the existing thread tension to a predetermined one. Thus the tension releasing operation ability is increased.
摘要:
An electromagnetic driving device is provided at a non-rotating part of a sewing machine, thereby to rotate a first magnet via transmission mechanism. A second magnet which is opposite to the first magnet with an appropriate space thereby, is rotatably provided with respect to a bobbin carrier. These magnets keep a certain one rotating relative position by means of the opposing magnetic poles, thereby to transmit rotation of the first magnet to the second magnet. Rotation of the second magnet actuates a tension adjusting mechanism comprising a thread tension adjusting spring provided on the bobbin carrier, via the transmission mechanism so as to adjust the thread tension, and controls the electromagnetic driving device in response to designation of the thread tension. Thus, the tension of the lower thread may be adjusted when attaching the bobbin carrier in the sewing machine.
摘要:
Disclosed is an electronic sewing machine for modifying a stitch pattern with stitch forming instrumentalities, including a first memory for storing stitch control data used to control said stitch forming instrumentalities, a plurality of pattern selecting switches selectively operable for producing a different pattern signal for addressing the first memory to sequentially read the stitch control data, a second memory for storing a selected number of pattern signals, each one of the selected number of pattern signals designating an initial address of the first memory, a counter for counting the total and ordinal number of the pattern signals stored in the second memory, and a calculating device for storing at least one calculation formula for selecting a predetermined variation rate, the calculating device being responsive to the total as well as ordinal numbers of the pattern signals to modify the stitch control data read from the first memory for controlling the stitch forming instrumentalities.
摘要:
The system LSI has a MCU, a memory access control means equipped with unified memory interfaces with which at least two lines of unified memories A and B can be connected. In the main unit of the data processing system, the purpose of each unified memory is set like “mainly for main storage” or “mainly for display” by software in accordance with the operating status of the data processing system so as to adjust the memory access performance. In addition, the system has a means for specifying the unified memory to access and area therein for every display plane to be controlled by the display control circuit.
摘要:
A polarizing beam splitter for separating an upstream beam from a downstream beam according to the polarization of an incident beam is provided between first and second light sources emitting laser beams at respective wavelength and an objective lens. A phase plate for providing a phase difference to a beam incident on the polarizing beam splitter is provided between the polarizing beam splitter and the light sources. A portion of the laser beam incident on the polarizing beam splitter is reflected by the polarizing beam splitter and caused to be incident on a photo-detecting unit, so as to prevent an unnecessary portion of the laser beam is incident on the photo-detecting unit. According to the invention, the laser beam is used efficiently and the cost of fabricating an optical disk apparatus is reduced by eliminating a need for a gain controlling circuit in the photo-detecting unit.
摘要:
In a synchronization system adopted in a synchronous-multisystem control apparatus comprising a plurality of systems operating synchronously with each other at a fixed control period, the synchronous-multisystem control apparatus can be operated in a single-system mode in the event of failures occurring simultaneously in some of the systems.The synchronous-multisystem control apparatus employs a plurality of control circuits each provided for one of the systems. Any particular one of the control circuits comprises: a period-signal generating circuit for generating a period signal indicating a start point of a control period; a synchronization-reference selecting circuit for outputting a synchronization-reference signal by referring to period signals generated by the systems; and a control-period correcting circuit for correcting a control period of the particular system by forming a judgment on a synchronization shift of the period signal generated by the particular system from the synchronization-reference signal and keeping the control period as it is in case the synchronization-reference signal is not generated.
摘要:
A terminal apparatus of the present invention having a position detection unit and a display unit further includes a geographic information storage unit for storing three-dimensional terrain shape information, an attitude detection unit for detecting the attitude of the terminal apparatus, and an image creation unit for obtaining information on a vector vertical to the display unit based on information on the attitude obtained by the attitude detection unit and creating a three-dimensional terrain image at a viewpoint using a current position obtained by the position detection unit, information on a line-of-sight defined by the information on the vector, and the three-dimensional terrain shape information in the geographic information storage unit. When the attitude of the terminal apparatus is changed, the three-dimensional terrain image on the display unit is updated, following a change in the attitude of the terminal apparatus.
摘要:
Consumption power control is provided for a system LSI made of a combination of a plurality of reusable logic circuit modules, i.e., Intellectual Property (IP) cores. Hardware resources such as interfaces and registers for the consumption power control of other IP cores are prepared and controlled by software for the consumption power control of a system LSI. The consumption power can be controlled at an IP core level. A method is provided which facilitates a system LSI designer to enter a consumption power control specification of a system LSI when the system LSI is configured.
摘要:
A solid fuel burner using a low oxygen concentration gas as a transporting gas of a low grade solid fuel such as brown coal or the like and a combustion method using the solid fuel burner are provided. The solid fuel burner comprises a means for accelerating ignition of the fuel and a means for preventing slugging caused by combustion ash from occurring. Mixing of fuel and air inside a fuel nozzle 11 is accelerated by that an additional air nozzle 12 and a separator 35 for separating a flow passage are arranged in the fuel nozzle 11, and the exit of the additional air nozzle 12 is set at a position so as to overlap with the separator 35 when seeing from a direction perpendicular to a burner axis, and additional air is ejected in a direction nearly perpendicular to a flow direction of a fuel jet flowing through the fuel nozzle 11. An amount of air from the additional air nozzle 12 is varied corresponding to a combustion load. By increasing the amount of air from the additional air nozzle 12 at a low load operation, an oxygen concentration of a circulation flow 19 formed in a downstream portion outside the exit of the fuel nozzle 11 is increased to stably burn the fuel. By decreasing the amount of air from the additional air nozzle 12 at a high load operation, a flame is formed at a position distant from the fuel nozzle 11 to suppress radiant heat received by structures of the solid fuel burner and walls of the furnace.
摘要:
According to a burner of the present invention, a stable combustion is obtained in a wide range from a high-load operation condition to a low-load operation condition even in the case of low quality solid fuel such as brown coal. The amount of air supplied from additional air holes or additional air nozzles 12 can be adjusted depending on the combustion load of furnace 41. At a low load, the amount of air supplied from additional air holes or additional air nozzles 12 is increased, whereby the oxygen concentration in a recirculation zones 19 formed downstream of the outside of a fuel nozzle 11 exit, permits a stable combustion. At a high load, the amount of air supplied from additional air holes or additional air nozzles 12 is reduced, whereby a flame is formed in a position far from the fuel nozzle 11. This suppresses thermal radiation onto a solid fuel burner 42 structure and a furnace 41 wall. The solid fuel burner 42 is applicable to combustion using low-quality solid fuel such as brown coal and exhaust gas as the carrier gas.