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Rotary-and-Vibrating Dasher Churn: Turn to Churn, Lift and Plunge to Gather
Martin

Ṣẹ́dá nipasẹ̀

Martin

6. Oṣù Kẹwà 2026NO
19
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Rotary-and-Vibrating Dasher Churn: Turn to Churn, Lift and Plunge to Gather

Nash wanted to switch from churning to gathering "without changing the connection of the machinery." William R. Nash of Bridgeport, Connecticut, received US 7,348, dated 7 May 1850, for working rotary and vertical churn-dashers on one shaft. A rotary dasher of four radial hollow prismatic arms, each with a hole in its forward side near the shaft and an aperture in its rear side near its end, turns above a perforated vibrating dasher held between collars. The pinion on the lid drives the shaft by a pin in a notch, "but the shaft being free to slide vertically upward," the handle on top can work the vibrating dasher up and down. This rung looks at the hollow arms, then prints both dashers and the notched pinion, fits them in a box, and makes butter.
Àárín
About 4 hours, plus printing

Ìlànà

1

Air through the arms

Ń ṣí ìwé Jupyter…
2

Rotary and reciprocating dashers on one spindle before it

The embedded blueprint works both dashers at once from one crank. Nash uses them one after the other: rotary to churn, vibrating to gather.
3

Read US 7,348

"The nature of this invention consists, principally in so arranging and combining in the same churn and upon one shaft, a horizontal rotary dasher and a vertically vibrating dasher, that while the rotary dasher is operated for the purpose of agitating the cream, the vibrating dasher remains at rest; and that when the butter is produced, the vibrating dasher may be operated for the purpose of gathering or consolidating the butter."
4

Print the parts

Print the rotary dasher with its four hollow triangular arms (/uploads/blueprints/rotary-and-vibrating-dasher-churn-rotary-dasher.stl), the perforated vibrating dasher (/uploads/blueprints/rotary-and-vibrating-dasher-churn-vibrating-dasher.stl), the notched pinion (/uploads/blueprints/rotary-and-vibrating-dasher-churn-notched-pinion.stl) and the crank arm (/uploads/blueprints/rotary-and-vibrating-dasher-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

Shaft and dashers

Use a 12 mm hardwood dowel as the shaft, squared where the rotary dasher sits. Glue two collars of short dowel on it either side of the vibrating dasher so it is carried up and down but turns freely, and glue the rotary dasher 30 mm above. Drill a cross hole for a steel pin just above where the pinion will sit, and fit a handle on top.

Àwọn ohun èlò fún ìgbésẹ̀ yìí:

Àwọn dowel igi líleÀwọn dowel igi líle1 ẹyọ
Ọ̀pá Róbótó Irin Rírọ̀Ọ̀pá Róbótó Irin Rírọ̀1 ẹyọ
Ìdìpọ̀ IgiÌdìpọ̀ Igi1 ẹyọ

Àwọn irinṣẹ́ tí a nílò:

Ayùn Ọwọ́Ayùn Ọwọ́
Ẹ̀rọ Ìlùkòkò AláìlókùnẸ̀rọ Ìlùkòkò Aláìlókùn
Àkójọ Orí ÌlùkòkòÀkójọ Orí Ìlùkòkò
Ayùn IrinAyùn Irin
6

Lid, pinion and crank

Take a food-safe square box about 170 mm each way and cut a two-part plywood lid, one part removable. Seat the pinion on the lid round the shaft, the pin lying in its notch. Mount a crown wheel on a short crank shaft between two posts on the lid so its pegs mesh the pinion, as his gear wheel I, and fit the crank arm.

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
Pákó igi pinePákó igi pine1 ẹyọ
Àwọn dowel igi líleÀwọn dowel igi líle1 ẹyọ
Ìsúrù igi #8 x 1"Ìsúrù igi #8 x 1"1 ẹyọ

Àwọn irinṣẹ́ tí a nílò:

Ayùn KópìngìAyùn Kópìngì
Ẹ̀rọ Ìlùkòkò AláìlókùnẸ̀rọ Ìlùkòkò Aláìlókùn
Ìṣù àwọn ohun ìyí skurúÌṣù àwọn ohun ìyí skurú
7

The patent drawing

US 7,348 drawing sheet, public domain (expired patent).
Ìgbésẹ̀ 7 - Image 1
8

Churn by crank, gather by hand

Let the heavy cream stand until it reaches about 15 °C, checked with the thermometer. Pour in 1.5 litres. Turn the crank; time until the butter comes. Then work the handle up and down, so the vibrating dasher gathers the butter while the gearing rests. 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 nípọn1500 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

A pin that jumps, a dasher that turns

Rotary-and-vibrating dasher troubleshooting.

Flow

Loading...
10

History and honest limits

**William R. Nash** of Bridgeport, Fairfield County, Connecticut, received US 7,348, dated 7 May 1850. His lid was in two parts so one could be removed "without disturbing" the other; "one or more additional rotary dashers, may be attached to the vertical shaft." He claimed the application of the shaft to give a vertical reciprocating movement to the vibrating dasher and a rotary one to the others, so either can be used. **Honest limits.** A pegged crown wheel and pinion stand in for his gear wheel and pinion; a food-safe box and printed dashers for his. 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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