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Volume 17 (1955 - 195･･･
- Issue 4 Pages 121-
- Issue 3 Pages 75-
- Issue 2 Pages 37-
- Issue 1 Pages 1-
Volume 17, Issue 1
Displaying 1-9 of 9 articles from this issue
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1955 Volume 17 Issue 1 Pages 1-3,29
Published: August 05, 1955
Released on J-STAGE: April 30, 2010
JOURNAL FREE ACCESSDownload PDF (719K) -
Y. KODAMA1955 Volume 17 Issue 1 Pages 4-6
Published: August 05, 1955
Released on J-STAGE: April 30, 2010
JOURNAL FREE ACCESSI found next two matters when three phase induction motor (attach two condenser to it) had been driven with a electric source of single phase.
However, the common name of this motor is three phase induction motor of one horse power and this motor is 1.74 H. P at maxinum horse power.
(1) Maximum horse power dropped from 1.74 H.P to 0.937 H. P and then, the efficiency of this motor was about 58 percent.
(2) Characters below 0.6 H.P indicated better results than original characters. It showed us the fact that power-factor was reformed with two condensers.View full abstractDownload PDF (515K) -
(I) Performance of a Cylinder Type Corn ShellerS. TSUNEMATSU, S. NAMBU1955 Volume 17 Issue 1 Pages 7-10
Published: August 05, 1955
Released on J-STAGE: April 30, 2010
JOURNAL FREE ACCESSThe trait of the cylinder sheller can be shelled out both each cob and kernel at the outlet. The shelling conditions can be adjusted to opening or closing of an outlet gate at the cob outlet. The results of performance test are as follows.
1. It requiring 1.0-2.0 horse power to operate with capacity up to 1063-1238kg/hr. We are given the cylinder speed of 1060 r.p.m. (circumferential velocity=590m/min.)
2. We obtained, the crack condition of kernal varied with the cylinder speed and the size of cob pieces had influenced upon adjusting of the outlet gate.
3. It is necessary that the proper cylinder speed and the adjustments of outlet gate are accomodated itself to the species and moisture of the materials.View full abstractDownload PDF (5822K) -
1955 Volume 17 Issue 1 Pages 10-10,20
Published: August 05, 1955
Released on J-STAGE: April 30, 2010
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S. TSUNEMATSU, T. YOSHIDA, K. OKUDA1955 Volume 17 Issue 1 Pages 11-16
Published: August 05, 1955
Released on J-STAGE: April 30, 2010
JOURNAL FREE ACCESS(1) We have introduced the next equation to indicate the soil displacement by the tillaging machines, and named it “the mixing grade soil”
M=100-0.5S
where, S is the deviation from the completly mixed condition.
(2) Seting the several tilling-tools to the rotary type tillaging machine, we calculated the values of M under changing the relative speeds of rotary and travelling axes.
These values indicated the characteristics of soil displacement fairly well.
(3) It became clear that ΔA1 might be One of the most importent factors to the value of M at comparatively loosened. The smaller |ΔA1|, the higher M.
(4) The mixed condition of soil may be generally considered by investigating the distributon of tihe rjce-straws which are cut into the soil.View full abstractDownload PDF (1043K) -
T. ISA1955 Volume 17 Issue 1 Pages 17-20
Published: August 05, 1955
Released on J-STAGE: April 30, 2010
JOURNAL FREE ACCESSThe author studied the oil-expression of colza-seed by using super-sonics and as a result of this experiment, following facts were obtained.
(1) The cell-wall of colza-seed changed partially and its rigidity reduced from 1.18kg to 1.06kg (about 10%).
(2) The volume which decreased by compression increased with the raise of pressure, decreased with the number of compression.
(3) The rate of oil-expression in the case of super-sonics division was 35.6% in raw seed, 47.5% in flattened seed and 82.0% in high pressure (about 100kg/cm2). These values were respectively 4.7%, 15.9% and 21.0% higher than those of common division
Especially in high pressure compression the rate exceeded in other present expression methods.View full abstractDownload PDF (2131K) -
Some data for the design of reelH. EZAKI1955 Volume 17 Issue 1 Pages 21-25
Published: August 05, 1955
Released on J-STAGE: April 30, 2010
JOURNAL FREE ACCESSIn order to make the design of reel used on harvesting machines more easier. I tried mathematical analysis, and made some formulas and diagrams.
I represented the locos of reel slat in a mathematic formula, and the shape of rooped torochoid of the locas of reel slat in a formula, and drew diagrams.
I defined the hight of the reel and the distance between a reel and a cutterbar, and indicated some data of the reel from field tests.View full abstractDownload PDF (649K) -
Cutting resitance for crop stems (3)H. EZAKI, M. IRIE1955 Volume 17 Issue 1 Pages 26-29
Published: August 05, 1955
Released on J-STAGE: April 30, 2010
JOURNAL FREE ACCESSIn order to design harvesting Machines, we have to know the power and the minimum velocity for cutting of crop stemes.
We have reported the cutting resistance of one stem of crops, which was measured by EI-1 type testing machine.
Now, we manufactured EI-2 type testing implement (fig. 1) and found the minimum cutting velocity to have one stem cut by the sliding knife section.
(1) The minimum cutting velocity showed a trend to decrease as the wedge angle of the knife section decreased when inclined angle of the knife section was constant and the sliding knife section cut a piece of crop stem.
(2) There was optimum inclined angle of the knife section getting the minimum velocity, the wedge angle being constant.
(3) The minimum cutting velocity for crops was as follows;
Rice stem>Wheat>Milk vetch
Cutting by the knife section; 2-4m/s
Cutting by the knife section with ledger plate; 0.7-1.7m/s
(4) The static cutting resistance of one stem of crcps using the knife section with ledger plate was as follows (inclined angle was 30°);View full abstractDownload PDF (2172K) -
C. IGAKI1955 Volume 17 Issue 1 Pages 30-33
Published: August 05, 1955
Released on J-STAGE: April 30, 2010
JOURNAL FREE ACCESSGenerally, in the case of doing the drying work of the unhulled rice, the temperature to be added controls the dryimg speed, and gives the infulences to the quality of rice.
But, the degree of these influences, is not distinct. Then I have done these experiments for the drying speed and the quality of the unhulled rice.
As this result, I have gotten the next formula, for the moisture content percentage to take off, and the temperature to be added, and the time to heating the unhulled rice:
E=(T/10-1)2⋅H
As E: The moisture content % age to take off.
T: The temperature of inhulled rice in drying.
H: The time of heating.
And, from the result of experiment for the quality of rice, I have known the next tendency that is, the rate of craked rice of 30°C is 2%, and that of 100°C is 68% and the rate of budding out of 30°C is 93%, and that of 100°C is 2%.
These variation for several temperature is done straight, therefore, it is not desirable method to be rised the temperature of the unhulled rice above about 40°C.View full abstractDownload PDF (589K)
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