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S-Dasher Friction-Board Churn: A Double-Curved Dasher Throwing Cream Over Grooved Boards
Woody

Ṣẹ́dá nipasẹ̀

Woody

6. Oṣù Kẹwà 2026NO
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S-Dasher Friction-Board Churn: A Double-Curved Dasher Throwing Cream Over Grooved Boards

The Walkers lined a square churn with grooved boards so the cream would be thrown against them "thus keeping up a constant friction on all sides." William Walker and Matthew C. Walker of Lancaster, Pennsylvania, received US 7,554, dated 6 August 1850, for a square water-tight box about fourteen inches each way holding about 40 quarts, half filled, with a "double curved or S shaped dasher" revolving in the centre by a crank and a thumb screw. Four grooved cross pieces run along each side of its curved ends; a friction board grooved underneath inclines across the top; a triangular board returns the cream onto it; a grooved friction piece sits in the lower right corner. This rung checks the box's capacity, then prints the S dasher, friction boards and corner piece, fits them in a box, and makes butter.
Àárín
About 4 hours, plus printing

Ìlànà

1

Capacity

Ń ṣí ìwé Jupyter…
2

A shaped dash in a box churn before it

The embedded blueprint twists its wings into a screw. The Walkers bend theirs into an S and add grooved boards round the box for friction.
3

Read US 7,554

"As the churn is put in operation, the cream is thrown against the grooves of the incline board E, dashed around and under it, and passed over and against the friction piece G, in the right hand corner of box, while the ends of the dasher H and wide cross piece N keep the cream continually dashing against the grooves of the incline board E thus keeping up a constant friction on all sides."
4

Print the parts

Print the S dasher with its four grooved cross pieces in one piece (/uploads/blueprints/s-dasher-friction-board-churn-s-dasher.stl), the grooved incline board (/uploads/blueprints/s-dasher-friction-board-churn-incline-board.stl), the grooved corner piece (/uploads/blueprints/s-dasher-friction-board-churn-corner-piece.stl) and the crank arm (/uploads/blueprints/s-dasher-friction-board-churn-crank-arm.stl). 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

Fit the box

Take a food-safe box about 180 mm each way. Glue the incline board across the top, sloping down to within 20 mm of the left side, grooves underneath, and a triangular plywood board on that side to turn the cream back onto it. Glue the corner piece in the lower right corner. Drill both ends on the centre for the dasher's shaft.

Àwọn ohun èlò fún ìgbésẹ̀ yìí:

Àgọ́ ìtọ́jú ti ìpele oúnjẹÀgọ́ ìtọ́jú ti ìpele oúnjẹ1 ẹyọ
Àwo igi tí a lẹ̀ pọ̀Àwo igi tí a lẹ̀ pọ̀1 ẹyọ
Ìdílẹ̀ SilikoniÌdílẹ̀ Silikoni1 ẹyọ

Àwọn irinṣẹ́ tí a nílò:

Ayùn KópìngìAyùn Kópìngì
Ẹ̀rọ Ìlùkòkò AláìlókùnẸ̀rọ Ìlùkòkò Aláìlókùn
Àkójọ Orí ÌlùkòkòÀkójọ Orí Ìlùkòkò
Àwọn clampÀwọn clamp
6

Dasher and crank

Pass a 10 mm square hardwood shaft through the box and the dasher, glue the crank arm and a dowel handle on one end, and hold the other with a thumb screw through a washer, as theirs. Cut an air hole in the lid.

Àwọn ohun èlò fún ìgbésẹ̀ yìí:

Àwọn dowel igi líleÀwọn dowel igi líle1 ẹyọ
Skurú ẹ̀rọSkurú ẹ̀rọ1 ẹyọ
Wáṣà PẹrẹsẹWáṣà Pẹrẹsẹ1 ẹyọ
Ìdìpọ̀ IgiÌdìpọ̀ Igi1 ẹyọ

Àwọn irinṣẹ́ tí a nílò:

Ayùn Ọwọ́Ayùn Ọwọ́
Ẹ̀rọ Ìlùkòkò AláìlókùnẸ̀rọ Ìlùkòkò Aláìlókùn
Ìṣù àwọn ohun ìyí skurúÌṣù àwọn ohun ìyí skurú
7

The patent drawing

US 7,554 drawing sheet, public domain (expired patent).
Ìgbésẹ̀ 7 - Image 1
8

Crank and make butter

Let the heavy cream stand until it reaches about 15 °C, checked with the thermometer. Fill the box half full, about 2.9 litres. Crank steadily; 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.

Àwọn ohun èlò fún ìgbésẹ̀ yìí:

Ọ̀rá wàrà tó nípọnỌ̀rá wàrà tó nípọn2900 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

Dasher that strikes, cream that escapes

S-dasher friction-board troubleshooting.

Flow

Loading...
10

History and honest limits

**William Walker and Matthew C. Walker** of Lancaster, Pennsylvania, received US 7,554, dated 6 August 1850. Their box was of inch boards; a ledge at the top confined the lid, with a projecting strip on its underside to close it tight, and an aperture M let the air through. They claimed the double-curved S-shaped dasher with the grooved pieces. **Honest limits.** A food-safe box and printed parts stand in for their wooden churn, at about a third of its size. 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

11

Àwọn irinṣẹ́ tó nílò

11

Ìtọ́nisọ́nà yìí ń ṣe

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