Disclosed is a clarifier for use in treating a liquid containing non-soluble particles in suspension in order to separate these particles from the liquid. It comprises a tank, a liquid supply duct opening into the bottom portion of the tank and an injector for injecting a gas under pressure into at least part of liquid supplied to the supply duct in order to saturate this liquid with said gas and ...

PROBLEM TO BE SOLVED: To engrave a ceramic article such as a hydrodynamic ceramic bearing which is excellent in abrasion resistance and is inexpensively and easily manufactured by covering a workpiece with a polyester mask. SOLUTION: A laser beam 168 is turned on a polyester sheet 170 from a laser energy source 162, and a prescribed spiral pattern is engraved according to a database profile, and a...

PROBLEM TO BE SOLVED: To eliminate damage of a mold in the case of releasing from the mold while effectively preventing removal of a spike pin from an installation unit. SOLUTION: This mold comprises an installation unit 4 of a spike pin 5 at a predetermined position in a molding groove 2. In this case, a protrusion 11 protruding higher than the pin 5 to be installed at the unit 4 is provided near...

PROBLEM TO BE SOLVED: To facilitate a releasing operation of a product by preventing removal of a spike pin from an installation unit by using a support pin to be inserted into a central hole of the pin at the time of arranging unvulcanized rubber in a molding groove or the time of vulcanization molding or injection molding, and preventing damage of a mold at the time of releasing from the mold. S...

PROBLEM TO BE SOLVED: To improve running performance on an ice and snow road or wet road while preventing irregular wear. SOLUTION: At the time of running on an ice and snow or wet road, sipe grooves 33 tend to be blocked, but since sidewalls of protrusions 35, 36 of one and the other sides bent and protruded in a ridge state are brought into contact with one another to be supported to one another...

PROBLEM TO BE SOLVED: To improve bonding strength when resin parts are bonded to each other by oscillation fusion bonding. SOLUTION: In bonding structure of resin members in which at least two resin members having an outer wall which forms a profile and a flange part for bonding which is positioned at the end of the outer wall are bonded by oscillation fusion bonding with the flange parts made to ...

PROBLEM TO BE SOLVED: To effectively suppress a reduction in performance of a tire resulted from the progress of wear of its tread part. SOLUTION: The main parts 36a and 36b of a sipe 35 are inclined with respect to their depth direction so as to be gradually distant from each other and are connected to each other by means of a connection part 37, which causes the length of the opening end or the ...

PROBLEM TO BE SOLVED: To prevent an engine-driven rotary machine included in a power transmission system from seizing up by enabling the supply of lubricating oil to the rotary machine even after the stop of the engine. SOLUTION: A power transmission system which drives a rotary machine and an oil pump 6 with an engine 1 is provided with a first one-way clutch 7a between the output shaft 1a of the...

PROBLEM TO BE SOLVED: To improve the straight-ahead traveling of a crawler type travel device driven by its left and right hydraulic motors. SOLUTION: A crawler type travel device drives its left and right travel- driving shafts 29 with hydraulic motors M through planetary reduction gears 30 respectively. The internal gears 33 of the planetary reduction gears 30 are provided at their outer periphe...

PROBLEM TO BE SOLVED: To enable a gear shift of a transmission only after its clutch is completely disengaged and prevent a malfunction in disengaging the clutch being engaged. SOLUTION: A change gear for a transmission equipped with an automatic clutch comprises a mechanical transmission 3 adapted to be assisted by a power shift unit 4 through the operation of a gearshift, a clutch actuator 10 fo...

PROBLEM TO BE SOLVED: To suitably choose between perforation and cutting simultanous with horizontal sealing, to obtain driving force for a perforation cutter from the lowering movement of a horizontal thermo-fusion open and close seal bar and a cam, and to perforate evenly in a horizontal seal part. SOLUTION: A long thermo-fusion packaging film F moving in a longitudinal direction is folded in tw...

PROBLEM TO BE SOLVED: To provide a control device wherein opening edges of bags of packaging material to be sent out sequentially from a forming, filling, closing machine for flexible package are correctly placed in conformity with sealing stages of a vacuum chamber. SOLUTION: A control device comprises a forming, filling, closing machine for flexible package wherein a band-like film 15 to be let ...

PROBLEM TO BE SOLVED: To provide the take-up device which requires no excess working man-hour while a paper web is being passed through. SOLUTION: In the method for passing web-like material through the take-up device taking up the web-like material W such as a paper web from a web reel 2 to the other roll, a paper passing wedge is formed in the web-like material so as to be passed through the tak...

PROBLEM TO BE SOLVED: To provide a plant having effective cooling, appropriate cooling supply and recovery, by forming a turbine rotor blade in such a way that a front edge is made to execute impinging cooling and film cooling of cooling steam and a rear edge is made to execute convection cooling by a high heat transfer coefficient in which a flow speed of cooling steam is increased. SOLUTION: In ...

PROBLEM TO BE SOLVED: To prevent a combustion gas from reversely flowing to a gas turbine side by fully closing a gas turbine outlet damper when the rotational speed of a gas turbine becomes a regulated value or below in the case that the gas turbine is stopped in an emergency under a condition that the gas turbine outlet damper does not fully closed during operation. SOLUTION: In the case that a ...

PROBLEM TO BE SOLVED: To enhance energy convertion efficiency and achieve low environmental pollution by communicating a diameter contracted main combustion chamber and a diameter enlarged combustion chamber with each other for a predetermined period before and after the top dead center of a diameter enlarged piston in which a diameter contracted piston is arranged, in a heating process out of pis...

PROBLEM TO BE SOLVED: To make requisite minimum engine torque transmission by an accelerator ON immediately after (during connection of a clutch) select operation of an N&rarr D (R) range. SOLUTION: Select operation of an N&rarr D (R) range is detected by a neutral switch (S1, S2), at the time within first prescribed time T1# (S5), establishment or non-satisfaction of a fuel cut permissible condit...

PROBLEM TO BE SOLVED: To obtain a sufficient differential motion restriction force by using a small and durable conical friction clutch with a big capacity. SOLUTION: This device is provided with a differential case 3 rotated and driven by an engine, a pinion shaft 19 rotating integrally with the differential case 3, a pinion gear 25 supported on the shaft 19 rotatably, a bevel gear type different...

PROBLEM TO BE SOLVED: To maintain the degree of vacuum of the vacuum heat insulating layer of a heat collecting tube for a solar heat collecting device in a high degree. SOLUTION: A gap, formed between the outer tube 1a and the inner tube 1b of a solar heat collecting device, is evacuated to form a vacuum heat insulating layer 1c. The vacuum heat insulating layer 1c is connected to a vacuum tank 7...

PROBLEM TO BE SOLVED: To provide a driving auxiliary device which is improved in the degree of freedom of fitting as to a driving auxiliary device which enables driving only by both the hands. SOLUTION: A control arm 26 and a cable take-up board 38 are connected to a rotatably supported shaft 24. One-end sides of a brake cable 48 and an accelerator cable 50 are coupled with the outer peripheral ed...