SANAA
UREMBO NA USTAWI
UJANJA
UTAMADUNI NA HISTORIA
BURUDANI
MAZINGIRA
CHAKULA NA VINYWAJI
UHANDISI WA KINYUME
SAYANSI
MICHEZO
TEKNOLOJIA
VAZI
Self-Folding Blade Dasher Churn: Six Blades to Churn, Reverse and They Fold to Two That Gather
Robert W. Davis let the cream set the dasher and the butter fold it.
Robert W. Davis of Rodgersville, Steuben County, New York, received US 10,566, dated 28 February 1854, for "Churns for Making and Working Butter": a dasher of two end pieces B carrying blades a, and divided end pieces C hung loosely on pins "set eccentric to the axis of the dasher," carrying blades b and scroll-curved blades c. Turned one way, the cream's resistance opens it "so as to present six centripetal cutting or agitating blades"; reversed after the butter comes, the butter's resistance closes it "so as to present but two centrifugal gathering blades," which gather the butter, work it into rolls and expel the buttermilk.
This rung works out the strokes and the turning moment, then prints the end pieces, sections and blades, builds the round-bottomed churn, and makes and works butter.
Juu
About 5 hours, plus printing
Maagizo
1
1
Six blades or two
Six blades or two
Inapakia daftari la Jupyter…
2
2
A dasher that changes when reversed, before it
A dasher that changes when reversed, before it
The embedded blueprint's floats fall back onto rollers when the crank is reversed. Davis's sections fold six blades into two S-shaped gatherers.
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3
Read US 10,566
Read US 10,566
"The blades, c, c, have a greater curvature given them in line of a scroll, than those, b, b, as seen in the drawing. This increased curvature commences from the termination of the curve of the blades, b, b, as seen in the drawing. This increased curvature prevents the dasher throwing the butter toward the center of the churn, while gathering and working it."
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4
Print the parts
Print the parts
Print two end pieces B, four sections C, four outer blades for a and b and two scroll blades c. Print the blades on their lug ends. Print in PETG at 0.2 mm layers, 30 % infill, 4 walls; wash before first use.
Vifaa kwa hatua hii:
Uzi wa PETG1 kipandeZana zinazohitajika:
Printa ya 3D ya nyuzi (FDM)5
5
Print the end piece
Print the end piece
The end piece, printed as step 4 describes.
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6
Print the section
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7
Print the outer blade
Print the outer blade
The outer blade, printed as step 4 describes.
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8
Print the scroll blade
Print the scroll blade
The scroll blade, printed as step 4 describes.
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9
The round-bottomed churn
The round-bottomed churn
Lay a round food-grade container about 180 mm across and 180 mm long on its side in a pine cradle and cut a lid opening in its top. Drill both ends on the axis for a 10 mm square hardwood shaft and fit a crank arm and dowel handle outside.
Vifaa kwa hatua hii:
Chombo cha kuhifadhi cha daraja la chakula1 kipande
Ubao wa msonobari1 kipande
Vijiti vya mbao ngumu1 kipande
Skrubu ya mti #8 x inchi 11 kipande
Gundi ya Mbao1 kipandeZana zinazohitajika:
Msumeno wa kukata mikunjo
Kekee cha Betri
Seti ya vichimbuzi
Msumeno wa mkono10
10
Assemble the folding dasher
Assemble the folding dasher
Slide the two end pieces onto the shaft inside the churn and screw an outer blade a across each pair of ends. On each side, hang a section on each end piece's pin hole with a 4 mm stainless pin, then screw an outer blade b across the sections' outer ends and a scroll blade c across their inner ends. Fit a short pin in each end piece as a stop so the sections open about square to B and fold back flat against it.
Vifaa kwa hatua hii:
Ufito wa chuma laini1 kipande
Skrubu za mashine1 kipandeZana zinazohitajika:
Msumeno wa chuma
Seti ya bisibisiKekee cha Betri11
11
The build in 3D
The build in 3D
FreeCAD model of this build, not of the patent: the round-bottomed churn cut open, the end pieces with blades a on the square shaft, and the sections swung open across them on their pins, as for churning.
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12
Churn one way, gather the other
Churn one way, gather the other
Let the heavy cream stand until it reaches about 15 °C, checked with the thermometer. Pour in 1.5 litres. Turn the crank the way that opens the sections and time until the butter comes. Draw off the buttermilk, then reverse the crank so the sections fold and the two S-blades gather and roll the butter. Pour off the buttermilk, add cold water, churn a little and pour off again until it runs clear; work in a pinch of salt and weigh the butter.
Vifaa kwa hatua hii:
Malai nzito1500 ml
Chumvi ya Bahari Mbichi1 kipande
Maji1 kipandeZana zinazohitajika:
Kipima joto chenye kijiti kinachobaki ndani
Saa ya kupima muda
Mizani ya dijitali ya jikoni
Bakuli kubwa la kuchanganyia la chuma cha pua13
13
Sections that will not swing
Sections that will not swing
Self-folding blade dasher troubleshooting.
Flow
Loading...
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History and honest limits
History and honest limits
**Robert W. Davis** of Rodgersville, Steuben County, New York, received US 10,566, dated 28 February 1854. He divided the end pieces C diagonally "in the line of a cima reversa" so the blades' edges always meet them as they open and close; his Fig. 2 showed the open position in red lines, which do not survive in the black-and-white scan. He claimed dividing the end pieces C, eccentric to the dasher's axis, combined with the blades a, b, c, so the dasher adjusts itself by the resistance of the cream and then, reversed, of the butter.
**Honest limits.** A container, printed parts and stop pins stand in for his churn and diagonal joints; he gave no sizes, and our blade curves are read from his figures. The notebook's force is illustrative. FDM prints hold food in their layer lines, so wash well and replace when worn. Your times and weights are the result.
Vifaa
11- 1 kipandeKishikilia Nafasi
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Zana Zinazohitajika
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Faili za muundo
5Mchoro huu unatengeneza
Blueprint zinazohusiana
Blueprint hizi zinashiriki maarifa — mbinu, vifaa au kanuni
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CC0 Umma Wote
Mchoro huu umetolewa chini ya CC0. Uko huru kunakili, kubadilisha, kusambaza, na kutumia kazi hii kwa madhumuni yoyote, bila kuomba ruhusa.
Saidia Mtengenezaji kwa kununua bidhaa kupitia Mchoro wao ambapo wanapata Kamisheni ya Mtengenezaji iliyowekwa na Wachuuzi, au unda marudio mapya ya Mchoro huu na uiunganishe kama kiungo katika Mchoro wako kuchangia mapato.