摘要:
A continuous casting equipment which can be applied to a wide variation of casting capacity for continuous casting and by which a continuous casting operation can be performed with safety. The continuous casting equipment comprises a tundish for receiving molten metal poured from a ladle and for pouring the molten metal into a mold, a travelling truck for carrying the tundish between a molding section at which the mold is located and a skimming section at which molten scum in the tundish is to be discharged, and a tilting apparatus located at the skimming section for tilting the tundish together with the travelling truck on which the tundish is carried to allow molten scum to be discharged from within the tundish. Also an improved continuous casting method is disclosed.
摘要:
A digital audio tape recorder and a method for operating the same, especially in a music program jump selecting mode. In one embodiment, the state of an erasure-preventing tab is detected, and TOC (Table-Of-Contents) information is transferred from the tape to a TOC information memory only when the erasure-preventing tab is set to an indicate an unrecordable state. In accordance with another embodiment, when the music program number of the music selection presently being reproduced is known and the program number is aligned, a target music program number is calculated and displayed.
摘要:
A process for preparing improved pellets of a hydrolyzed ethylene-vinyl acetate copolymer which comprises extruding a methanol or a water-methanol solution including a hydrolyzed ethylene-vinyl acetate copolymer and a lubricant into a coagulating liquid in the form of a strand and cutting the strand into pellets. According to the process of the present invention, the molding processability can be improved without damaging the properties of the molded articles.
摘要:
A foot-operated device for controlling a parking brake wherein a parking brake pedal is locked in its operated position through engagement of a pawl member with ratchet teeth. The pawl member is pivotally connected to the brake pedal, and the ratchet teeth are formed on a sector or bracket fixed to a vehicle frame on which the brake pedal is pivotally supported. The parking brake is released when a pedal pad pivotally connected to the brake pedal is pivoted on the pedal and the pedal is depressed. The pedal pad is operatively connected by a lever to the pawl member which is normally held in engagement with the ratchet teeth by a first spring member. The lever is pivotally connected to the brake pedal, biased by the first spring member and engageable with the pawl member to transmit a biasing force of the first spring member to the pawl member so that the pawl member engages the ratchet teeth. The lever is pivoted by the pedal pad to remove the biasing force of the first spring member from the pawl member whereby the pawl member is set ready to disengage from the ratchet teeth by a second spring member whose biasing force is selected to be smaller than an engagement force between the pawl member and the ratchet teeth. The lever may be replaced by a rod which has a first end portion engaging the pawl member and a second end portion engaging the pedal pad. The rod which is biased by the first spring member normally keeps the pawl member in engagement with the ratchet teeth. The rod is linearly moved by the pedal pad to remove the biasing force of the first spring member from the pawl member thereby allowing the pawl member to disengage from the teeth.
摘要:
A master cylinder is provided on the cylinder body with a reservoir-receiving mouth formed near the border of the section of of a large diameter and the section of a small diameter of a stepped bore, a through hole being formed between the bottom surface of the reservoir-receiving mouth and the first pressure chamber, a compensation hole being formed between the bottom surface of the reservoir-receiving mouth and the second pressure chamber, a valve seat fitted in and fixed to the reservoir-receiving mouth and having an internal hole formed therein, a check valve provided within the reservoir-receiving mouth between the bottom surface of the reservoir-receiving mouth and the valve seat with the valve element being pressed against a resilient member fixed to the valve seat by means of a spring, a projecting member protruding into the first pressure chamber through the through hole provided for the valve element coaxially with the valve element so that the valve element is titlted to form a passage between the valve element and the resilient member by engagement of the piston section of a small diameter of the stepped piston with the projecting member while the stepped piston is at a return position, and the valve element including a passage formed therein through which the first pressure chamber communicates with the reservoir via the internal hole formed in the valve seat and an relief valve for maintaining the passage closed until the effective pressure within the first pressure chamber reaches a predetermined value.
摘要:
A foot-operated device for controlling a parking brake wherein a parking brake pedal is locked in its operated position through engagement of a pawl member with ratchet teeth. The pawl member is connected to a bracket pivotally supporting the pedal, and the ratchet teeth are formed on the pedal. The parking brake is released only when a pedal pad pivotally connected to the pedal is pivoted on the pedal and the pedal is depressed. Near the pawl member is disposed a lever pivotally connected to the bracket. The pedal, pedal pad, pawl member and lever are pivoted about respective axes which are parallel to one another. The pedal pad and the lever are connected by a connecting device which transmit a pivotal movement of the pedal pad to the lever such that a movement of said pedal pad incident to a pivotal movement of the pedal is not transferred to the lever. The parking brake control device further comprises a spring device for biasing the pawl member in a first direction that causes the pawl member to engage the ratchet teeth while the pedal pad is in its original position, and biasing the pawl member in a second direction that causes the pawl member to disengage from the ratchet teeth while the pedal pad is in its operated position. The force with which the pawl member is biased in the second direction is selected to be smaller than an engagement force existing between the pawl member and the ratchet teeth in engagement with the pawl member.
摘要:
The present invention relates to a brake master cylinder device including a first and a second cylinder bore formed within a body. A piston member is formed with a first piston and a second piston, which are respectively engaged with the first and the second cylinder bores to define a first and a second cylinder chamber, the arrangement being such that when the piston member is moved in a certain direction the volumes of both the first and the second cylinder chambers are reduced together. The piston member is biased in the direction opposite to said certain direction. A fluid conduit opens from the second cylinder chamber for connection to a brake actuator. A first one way valve always allows fluid to flow freely from the first to the second cylinder chamber. A second one way valve allows fluid to flow from a fluid reservoir, within which fluid is kept at atmospheric pressure, to the first cylinder chamber, when the pressure in the first cylinder chamber is below atmospheric pressure. A means is provided for venting the first cylinder chamber, which allows fluid to flow from it to the fluid reservoir, when the pressure of the fluid in the first cylinder chamber rises to a predetermined pressure value. When the first piston member is in its extreme position in said opposite direction, a means for refilling the first cylinder chamber allows fluid to flow freely from the fluid reservoir to the first cylinder chamber, and a means for releasing fluid from the second cylinder chamber allows fluid to flow therefrom to the fluid reservoir. Thus a two-stage performance of brake application is available.
摘要:
A controlling device used in a dual hydraulic braking system of a vehicle including a master cylinder which produces hydraulic braking pressure in response to the pedal depression, wheel cylinders disposed on each wheel, two mutually independent circuits for delivering the braking pressure from the master cylinder to each wheel cylinder, and a regulating valve disposed at least in one circuit of the two for controlling the hydraulic braking pressure delivered to the wheel cylinder. The controlling device is characterized in possession of an operation restricting mechanism, wherein a second piston, disposed substantially perpendicularly to a first piston in the regulating valve, is exposed to air on one end thereof, and affected by the hydraulic pressure on the other end thereof from a circuit which is not under control of the regulating valve, and is constantly biased by a compression spring toward the pressure receiving side thereof to block the reciprocal movement of the first piston, exceptionally allowing the first piston to reciprocate only when the hydraulic pressure acting on the second piston exceeds a certain predetermined value to overcome the spring force to shift the second piston toward the air-exposed end.
摘要:
A safety device for an oil hydraulic braking system of a dual-type including separate oil hydraulic systems for the front and rear wheels, the oil hydraulic system being applied with a so-called proportioning element, the safety device being adapted to detect any hydraulic failure which has occurred in any portion of the entire oil hydraulic system and warn the driver of the failure due to a displacement of a single piston member from its normal neutral operating position.
摘要:
Foreign metal inspection equipment is provided with: a conveying device for conveying a sample to be subjected to inspection; electrodes positioned so as to face the surface of the sample; a measurement device for measuring the capacitance between the electrodes and the sample being conveyed by the conveying device; and a processing unit that inspects for foreign metal mixed in the sample on the basis of the change in capacitance measured by the measurement device.