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Two-Compartment Gate Churn: Paddles Drive the Cream Through a Slotted Gate Into an Open Side and Round Again
Buttercup

Ṣẹ́dá nipasẹ̀

Buttercup

7. Oṣù Kẹwà 2026IE
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Two-Compartment Gate Churn: Paddles Drive the Cream Through a Slotted Gate Into an Open Side and Round Again

Silas F. Lefler of Racine, Wisconsin, received US 19,034, dated 5 January 1858, for a churn divided into a closed compartment, where spiral paddles turn under a housing, and an open one, joined by gateways at the partition's foot. A slotted gate in one gateway breaks the current, and the cream, driven into the open side, "is exposed to the action of the fresh air" before it returns. This rung prints the partition, gate and paddle hubs, builds the churn and makes and gathers butter.
Àárín
About 4 hours, plus printing

Ìlànà

1

A loop through the open side

Ń ṣí ìwé Jupyter…
2

Cream sent round a divided vessel, before it

True splits the cream round a separator; Lefler drives it in a loop through a gate and an open side.
3

Read US 19,034

"The shaft with the paddles being then revolved, the cream in the close compartment (A) will be forced through the gate (G), thus breaking its direct motion and causing it to force its way into the open compartment (B) in a highly agitated state most propitious for the formation of butter."
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Print the parts

Print the partition with its gateways and guideways (/uploads/blueprints/two-compartment-gate-churn-partition.stl), the slotted gate (/uploads/blueprints/two-compartment-gate-churn-gate.stl) and three paddle hubs (/uploads/blueprints/two-compartment-gate-churn-paddle-hub.stl). The partition needs a bed at least 240 mm long. Print in PETG at 0.2 mm layers, 30 % infill, 4 walls; wash before first use.

Àwọn ohun èlò fún ìgbésẹ̀ yìí:

Okùn PETGOkùn PETG1 ẹyọ

Àwọn irinṣẹ́ tí a nílò:

Ẹ̀rọ ìtẹ̀ 3D oníwàyà (FDM)Ẹ̀rọ ìtẹ̀ 3D oníwàyà (FDM)
5

Box, partition and shaft

Use a rectangular food-grade container about 240 by 170 mm and 180 mm deep. Stand the partition across its length 50 mm from one side, sealed at its ends with food-safe silicone. Run a 10 mm square hardwood shaft through the container's ends in the larger compartment, the three hubs on it each turned 40 degrees, with a crank outside.

Àwọn ohun èlò fún ìgbésẹ̀ yìí:

Àgọ́ ìtọ́jú ti ìpele oúnjẹÀgọ́ ìtọ́jú ti ìpele oúnjẹ1 ẹyọ
Ìdílẹ̀ SilikoniÌdílẹ̀ Silikoni1 ẹyọ
Àwọn dowel igi líleÀwọn dowel igi líle1 ẹyọ
Pákó igi pinePákó igi pine1 ẹyọ
Ìdìpọ̀ IgiÌdìpọ̀ Igi1 ẹyọ

Àwọn irinṣẹ́ tí a nílò:

Ayùn Ọwọ́Ayùn Ọwọ́
Ẹ̀rọ Ìlùkòkò AláìlókùnẸ̀rọ Ìlùkòkò Aláìlókùn
Àkójọ Orí ÌlùkòkòÀkójọ Orí Ìlùkòkò
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Housing and gate

Bend a strip of thin stainless sheet over the paddles as the housing, screwed to the container's ends. Slide the gate into the guideways in front of the gateway on the side where the paddles rise.

Àwọn ohun èlò fún ìgbésẹ̀ yìí:

Àwo irin tí kò ń yá - 304Àwo irin tí kò ń yá - 3041 ẹyọ
Skurú ẹ̀rọSkurú ẹ̀rọ1 ẹyọ

Àwọn irinṣẹ́ tí a nílò:

Ìlàǹkàn irinÌlàǹkàn irin
Ẹ̀rọ Ìlùkòkò AláìlókùnẸ̀rọ Ìlùkòkò Aláìlókùn
Ìṣù àwọn ohun ìyí skurúÌṣù àwọn ohun ìyí skurú
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The patent drawing

US 19,034 drawing sheet, public domain (expired patent).
Ìgbésẹ̀ 7 - Image 1
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Churn, then gather

Let the heavy cream stand until it reaches about 15 °C, checked with the thermometer. Pour 2 litres into the open side. Crank steadily; time until the butter comes. Move the gate to the other gateway and crank on until the butter has gathered in the open side before it, then lift it out. 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.

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
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Troubleshooting

Two-compartment churn troubleshooting.

Flow

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History and honest limits

**Silas F. Lefler** of Racine, Wisconsin, US 19,034, 5 January 1858. He made the partition and shaft removable so the churn could be cleaned thoroughly. He claimed the churn of an open and a closed compartment with gateways and a gate passing the cream in a continuous current and gathering the butter. A stainless strip stands in for his housing; a container and printed parts for the rest. FDM prints hold food in their layer lines, so wash well and replace when worn.

Àwọn ohun-èlò

11

Àwọn irinṣẹ́ tó nílò

10

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