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Pinwheel Air-Tube Churn: A Beater Cut From One Tin Sheet, Tubes That Feed the Wave
YourGrandma

Ṣẹ́dá nipasẹ̀

YourGrandma

6. Oṣù Kẹwà 2026IS
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Pinwheel Air-Tube Churn: A Beater Cut From One Tin Sheet, Tubes That Feed the Wave

Emerson wanted a dasher "which unites simplicity with efficiency." Simeon F. Emerson of Canaan, Ohio, received US 7,236, dated 2 April 1850, for an atmospheric churn in a square box whose cover is in two pieces, one removable to inspect the cream. The beater is a squared sheet of tin plate "slit from each of the corners toward the center of the sheet for rather more than half the distance," every other corner turned in, on an upright spindle turned by a crank and wheel. "Inclined tubes, d, are secured to the sides of the churn tub; these incline forward, as they descend, in the direction in which the dasher is revolved." This rung works out the cuts, then makes the beater from stainless sheet with a printed template (or prints it), fits inclined tubes in a box, and makes butter.
Olùbẹ̀rẹ̀
About 2 hours, plus printing

Ìlànà

1

The cuts

Ń ṣí ìwé Jupyter…
2

Air fed into the whirl before it

The embedded blueprint lets the whirl bring air into a cone. Emerson breaks the whirl with tubes on the walls that feed air into its wave.
3

Read US 7,236

"A squared sheet of tin plate or other metal is slit from each of the corners toward the center of the sheet for rather more than half the distance from the corner to the center. Every other one of the eight corners thus produced is turned inward toward the center of the sheet, and the four are united there thus forming a beater B, with four arms."
4

Make the beater

Print the template (/uploads/blueprints/pinwheel-air-tube-churn-sheet-template.stl), lay it on a 150 mm square of 0.5 mm stainless sheet, mark the four slits and the centre hole, and cut them with snips and a drill. Deburr, then bend every other point in toward the centre and rivet or bolt the four together through a hole, as he united them. Or print the finished pinwheel (/uploads/blueprints/pinwheel-air-tube-churn-printed-beater.stl). Print in PETG at 0.2 mm layers, 30 % infill, 4 walls; wash before first use.

Àwọn ohun èlò fún ìgbésẹ̀ yìí:

Àwo irin tí kò ń yá - 304Àwo irin tí kò ń yá - 3041 ẹyọ
Skurú ẹ̀rọSkurú ẹ̀rọ1 ẹyọ
Nọ́ọ̀tì Onígun Mẹ́fàNọ́ọ̀tì Onígun Mẹ́fà1 ẹyọ
Okùn PETGOkùn PETG1 ẹyọ

Àwọn irinṣẹ́ tí a nílò:

Ìlàǹkàn irinÌlàǹkàn irin
Ohun èlò ìmúkúrò èèpoOhun èlò ìmúkúrò èèpo
Ẹ̀rọ Ìlùkòkò AláìlókùnẸ̀rọ Ìlùkòkò Aláìlókùn
Àkójọ Orí ÌlùkòkòÀkójọ Orí Ìlùkòkò
Ẹ̀rọ ìtẹ̀ 3D oníwàyà (FDM)Ẹ̀rọ ìtẹ̀ 3D oníwàyà (FDM)
5

Tubes on the sides

Print six tube clips (/uploads/blueprints/pinwheel-air-tube-churn-tube-clip.stl). Cut three 200 mm lengths of 16 mm food-grade tube and clip one to each of three sides of a food-safe square box, open at both ends, leaning about 18° forward as they go down in the direction the beater will turn.

Àwọn ohun èlò fún ìgbésẹ̀ yìí:

Páìpù PVCPáìpù PVC1 ẹyọ
Àgọ́ ìtọ́jú ti ìpele oúnjẹÀgọ́ ìtọ́jú ti ìpele oúnjẹ1 ẹyọ
Ìsúrù igi #8 x 1"Ìsúrù igi #8 x 1"1 ẹyọ

Àwọn irinṣẹ́ tí a nílò:

Ayùn IrinAyùn Irin
Ìṣù àwọn ohun ìyí skurúÌṣù àwọn ohun ìyí skurú
6

Spindle and crank

Fix the beater near the foot of a 10 mm square hardwood spindle and stand it in a seat drilled in the box's floor. Cut a two-piece plywood lid, one piece removable, with a hole for the spindle; glue a crank arm and handle on top.

Àwọn ohun èlò fún ìgbésẹ̀ yìí:

Àwọn dowel igi líleÀwọn dowel igi líle1 ẹyọ
Àwo igi tí a lẹ̀ pọ̀Àwo igi tí a lẹ̀ pọ̀1 ẹyọ
Ìdìpọ̀ IgiÌdìpọ̀ Igi1 ẹyọ

Àwọn irinṣẹ́ tí a nílò:

Ayùn Ọwọ́Ayùn Ọwọ́
Ayùn KópìngìAyùn Kópìngì
Ẹ̀rọ Ìlùkòkò AláìlókùnẸ̀rọ Ìlùkòkò Aláìlókùn
7

The build in 3D

FreeCAD model of this build, not of the patent: the box cut away to show the four-armed pinwheel beater on its spindle and the inclined air tubes on its sides.
Fáìlì ÀpẹrẹBLENDCC0 - Free
8

Crank and make butter

Let the heavy cream stand until it reaches about 15 °C, checked with the thermometer. Pour in 2 litres, below the tubes' tops. Crank steadily the way the tubes lean; time until the butter comes. 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.
Ìgbésẹ̀ 8 - Image 1

Àwọn ohun èlò fún ìgbésẹ̀ yìí:

Ọ̀rá wàrà tó nípọnỌ̀rá wàrà tó nípọn2000 ml
Iyọ̀ Òkun RúkèrúdòIyọ̀ Òkun Rúkèrúdò1 ẹyọ
OmiOmi1 ẹyọ

Àwọn irinṣẹ́ tí a nílò:

Ẹ̀rọ ìwọ̀n ooru oníhun tí ó dúró sí inúẸ̀rọ ìwọ̀n ooru oníhun tí ó dúró sí inú
Aago ÌdúróAago Ìdúró
Òṣùwọ̀n Díjítà Ilé ÌdánáÒṣùwọ̀n Díjítà Ilé Ìdáná
Àwo ìdàpọ̀ ńlá ti irin tí kò ń yáÀwo ìdàpọ̀ ńlá ti irin tí kò ń yá
9

Cream up the tubes, a beater that bends

Pinwheel air-tube churn troubleshooting.

Flow

Loading...
10

History and honest limits

**Simeon F. Emerson** of Canaan, Wayne County, Ohio, received US 7,236, dated 2 April 1850. The spindle was stepped in the tub's bottom and turned through a wheel and crank on the cover; the parts could be of "such materials as the manufacturer may deem best suited" for "efficiency, cheapness, and facility for cleaning." He claimed the combination of the dasher with the stationary inclined air channels on the churn tub. **Honest limits.** Stainless sheet stands in for his tin plate; our crank turns the spindle directly. FDM prints hold food in their layer lines, so wash well and replace when worn. Your times and weights are the result.

Àwọn ohun-èlò

13

Àwọn irinṣẹ́ tó nílò

13

Àwọn fáìlì àpẹrẹ

1

Ìtọ́nisọ́nà yìí ń ṣe

CC0 Àgbègbè Gbogbogbò

Blueprint yìí ti jáde lábẹ́ CC0. O lè ṣe àdàkọ, yí padà, pín, àti lò láìsí ìyọ̀ǹda.

Ṣàtìlẹ́yìn Olùṣẹ́dá nípa rírà àwọn ọjà nipasẹ̀ Blueprint wọn Ẹ̀san Olùṣẹ́dá tí àwọn Olùtajà gbé kalẹ̀, tàbí ṣẹ̀dá àtúnṣe tuntun ti Blueprint yìí kí o sì fi sínú Blueprint rẹ gẹ́gẹ́ bí ìsopọ̀ láti pín owó-wíwọlé.

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