PROBLEM TO BE SOLVED: To improve the operability of a paddy field working machine by giving many functions to a variable-speed lever of a stepless variable-speed gear to ensure the other operations in association with its travel variable-speed operation to be lightly and swiftly made without shifting lever gripping.SOLUTION: The paddy field working machine is constructed as follows: the variable-speed lever 11 and a speed control mechanism 25 are coordinatedly linked to each other so that the speed control mechanism 25 is operated to a higher-rotation side as the variable-speed lever 11 is operated from its neutral position N to a higher-speed position side in an advancing variable-speed operation path F; the advancing variable-speed operation path F and a reversely advancing variable-speed operating path R are mutually connected in parallel to each other and are deviated in a different-level manner; and a sub-advancing variable-speed operating path F' which is transferrable by a straight-line moving operation to an advancing direction succeeding from the neutral position N(r) of the reversely advancing variable-speed operating path R is collocated on the lateral side of the lower-speed region portion of the advancing variable-speed operation path F.

Paddy field working machine

PROBLEM TO BE SOLVED: To provide a walking-type tiller in which wheels can be made to approach tilling claws in the machine body movement and the wheels can be separated from an operating handle in the tilling work.SOLUTION: A walking-type tiller 1 includes: a tilling rotary 10 comprising a number of tilling claws 11; wheels 70 grounded in the movement; a resistance bar 60 inserted in soil in the tilling work; a rotating shaft 40 for supporting the wheels 70 and the resistance bar 60; a machine body frame 2 for supporting the tilling rotary 10; an operation handle 25 disposed from the machine body frame 2 toward the back obliquely upward in the machine body fore-and-aft direction; and a holding pipe 30 disposed at the rear end of the machine body frame 2, and holding the rotating shaft 40. In the grounded state of the wheels 70, the front ends of the wheels 70 are positioned at the front side from the holding pipe 30 in the machine body fore-and-aft direction in machine body side view. In the ungrounded state of the wheels 70, the front ends of the wheels 70 are positioned at the rear side from the holding pipe 30 in the machine body fore-and-aft direction.

Walking type tiller

PURPOSE:To simply produce electrolytic manganese dioxide having superior characteristics for a dry battery at a low cost by electrolyzing an aqueous manganese sulfate soln., subjecting the resulting manganese dioxide to crushing, pulverization and neutralization, and adding an oxidizing agent to carry out oxidation. CONSTITUTION:An aqueous manganese sulfate soln. as an electrolytic soln. or a suspension prepd. by adding a manganese oxide slurry to the manganese sulfate soln. is electrolyzed with a Ti plate or the like as the anode to deposit manganese dioxide on the anode. The deposited manganese dioxide is stripped from the anode and after-treated by washing with hot water, crushing, pulverization, washing with hot water, neutralization and drying. In the crushing, pulverization or neutralization stage, an oxidizing agent such as KMnO4 or NaClO is added to oxidize layer manganese oxide. Thus, electrolytic manganese dioxide made essentially of gamma.MnO2 is obtd.

Production of electrolytic manganese dioxide

A prefabricated resin house includes a peripheral wall 10 achieved by assembling a plurality of peripheral wall structural members 11 - 19 constituted of resin and a roof 30 that is formed by assembling a plurality of roof structural members 31 - 39 constituted of resin and is placed on top of the peripheral wall 10.

Prefabricated resin house

PURPOSE:To position samples accurately, and to increase the areas of formation of electronic elements, which must be formed to the samples, wiring patterns, etc. by using a position detecting mark for the sample concerned and position detecting marks for a plurality of other adjacent samples in combination and positioning electron beams. CONSTITUTION:When an IC chip 12d is positioned, four marks in total of a mark 15d for IC chip 12d itself and marks 15a, 15b, 15e for each of IC chips 12a, 12b, 12e are used, these marks are each scanned by electron beams in the X and Y axes directions adn their positions are detected, and the IC chip 12d is positioned on the basis of eight detecting data in the X and Y directions obtained by the detection of the positions. Accordingly, one marks 15 formed to each IC chip 12 are used for the case of the positioning of the IC chips 12, to which mark themselves belong, and the case of the positioning of other three IC chips 12 adjacent to the IC chips in combination and employed four times in total, thus reducing the number of the marks 15 formed.

Electron beam exposing method

PURPOSE:To accurately carry out laying and fixing by embedding a mulch film in groove parts by smoothly performing taking out and covering of the mulch film with guide rollers. CONSTITUTION:The subject film guide is constructed as follows. In an apparatus for taking out a rolled mulch film 1 of a prescribed width, covering the surface of soil along ridges (A) and grooves (B), simultaneously pushing the mulch film 1 in the aforementioned groove parts (B) into the soil surface, laying and fixing the mulch film 1 while embedding the mulch film 1 in the soil surface, guide rollers 2, rotatable about the shaft along the top surface of the aforementioned ridges (A) and supporting and guiding the above-mentioned mulch film 1 taken out to the back on the top surface are installed.

Film guide in apparatus for laying mulch film

Seeding mulching apparatus

Seeding and mulching device

Film mulching apparatus

Subsoiler with plow

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