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Tilting-Tub Counter-Fan Churn: Two Fans Turn Opposite Ways, the Tub Tips to Drain and Work
Martin

Ṣẹ́dá nipasẹ̀

Martin

6. Oṣù Kẹwà 2026NO
25
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Tilting-Tub Counter-Fan Churn: Two Fans Turn Opposite Ways, the Tub Tips to Drain and Work

Brown and Bigelow wanted one churn to make the butter and then work it, by tipping the tub on its side. Lucian A. Brown and Hubbard Bigelow of Hartford, Connecticut, received US 9,311, dated 5 October 1852, assigned to Henry K. W. Welch. Their conical tub E swings on journals between two standards. The crank turns a fan H on the shaft G; a shell with inside gear on G's lower end turns, through a small pinion u, a spur gear t on a hollow shaft round G, which carries a second fan L the opposite way. A conical tube K, of tin or any other suitable material and watertight to the tub's bottom, keeps the cream from the hollow shaft. When the butter has come, the tub is tipped about 90 degrees: the buttermilk runs out at an aperture in the cover and the turning fans knead, work and roll the butter. This rung works out the gear train, then prints the gears, inner fan and conical tube, builds the tub and frame, and makes and works butter.
Ilọsíwájú
About 6 hours, plus printing

Ìlànà

1

The gear train

Ń ṣí ìwé Jupyter…
2

Gears driving more than one beater before it

The embedded blueprint drives several beaters from one crank through gears. Brown and Bigelow use an inside gear and a pinion to turn two fans opposite ways on one axis.
3

Read US 9,311

"In this horizontal position of the tub E we continue the rotation of the crank I, as in the operation of churning, and the butter thus becomes kneaded, worked and rolled, as the beater H in its revolutions scrapes the butter from the inside of the tub, while the beater L, revolving in the opposite direction, in close proximity to and inside of the other, will strike the butter forced over the beater H by the accumulation by scraping off the butter on the side of the tub, while the buttermilk and water, extracted from the butter by this process, runs down over the now inclined bottom of the tub E, and escapes by the aperture a' of the cover Z, Z, Z, into any receptacle placed under the aperture to receive it."
4

Print the parts

Print the shell gear S with 72 inside teeth (/uploads/blueprints/tilting-tub-counter-fan-churn-shell-gear.stl), the 12-tooth stud pinion u (/uploads/blueprints/tilting-tub-counter-fan-churn-stud-pinion.stl), the 48-tooth spur gear t printed in one with the hollow shaft x (/uploads/blueprints/tilting-tub-counter-fan-churn-spur-gear-and-hollow-shaft.stl), the inner fan L (/uploads/blueprints/tilting-tub-counter-fan-churn-inner-fan.stl) and the conical tube K (/uploads/blueprints/tilting-tub-counter-fan-churn-conical-tube.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

Tub, tube and frame

Use a tapered food-grade container about 250 mm across the top. Drill a 20 mm hole in the centre of its bottom and seal the conical tube's flange round it inside with food-safe silicone. Bolt a short carriage bolt through each side at mid-height as the journals d, with washers and silicone, and hang the tub by them in holes near the tops of two pine standards on a pine base. Screw a pine cross bar under the bottom (his q q) with a 4 mm screw standing down from it 37.5 mm off centre as the stud V, and a pine bridge below it (his n n) with a step hole for the shaft.

Àwọn ohun èlò fún ìgbésẹ̀ yìí:

Àgọ́ ìtọ́jú ti ìpele oúnjẹÀgọ́ ìtọ́jú ti ìpele oúnjẹ1 ẹyọ
Ìdílẹ̀ SilikoniÌdílẹ̀ Silikoni1 ẹyọ
Bọ́ọ̀tù orí róbótóBọ́ọ̀tù orí róbótó1 ẹyọ
Wáṣà PẹrẹsẹWáṣà Pẹrẹsẹ1 ẹyọ
Pákó igi pinePákó igi pine1 ẹyọ
Skurú ẹ̀rọSkurú ẹ̀rọ1 ẹyọ
Nọ́ọ̀tì Onígun Mẹ́fàNọ́ọ̀tì Onígun Mẹ́fà1 ẹyọ
Ìsúrù igi #8 x 1"Ìsúrù igi #8 x 1"1 ẹyọ

Àwọn irinṣẹ́ tí a nílò:

Ìṣètò ayùn ihòÌṣètò ayùn ihò
Ẹ̀rọ Ìlùkòkò AláìlókùnẸ̀rọ Ìlùkòkò Aláìlókùn
Àkójọ Orí ÌlùkòkòÀkójọ Orí Ìlùkòkò
Ayùn Ọwọ́Ayùn Ọwọ́
Ìṣù àwọn ohun ìyí skurúÌṣù àwọn ohun ìyí skurú
Kọ́kọ́rọ́ tí a lè ṣàtúnṣeKọ́kọ́rọ́ tí a lè ṣàtúnṣe
6

Shafts, fans and crank

Pass the hollow shaft up through the conical tube from below so the spur gear sits under the bottom, and glue the inner fan on its top just above the tube. Run a 10 mm stainless rod as the shaft G down through it, fix the shell gear on its foot with a set screw so the pinion on the stud meshes with both gears, and rest its end in the bridge's step. Bolt a pine bar F across the mouth as G's upper bearing; under it fix two hardwood blades reaching close to the tub's side as fan H, and above it a crank. A pine fork pivoted on the bridge, its handle pinned to the frame, holds the tub upright. Cut the container's lid in two, with a hole near the rim of one half as the aperture a'.

Àwọn ohun èlò fún ìgbésẹ̀ yìí:

Ọ̀pá Róbótó Irin Rírọ̀Ọ̀pá Róbótó Irin Rírọ̀1 ẹyọ
Àwọn dowel igi líleÀwọn dowel igi líle1 ẹyọ
Pákó igi pinePákó igi pine1 ẹyọ
Ẹpọ́ksì Ẹ̀yà MéjìẸpọ́ksì Ẹ̀yà Méjì1 ẹyọ
Skurú ẹ̀rọSkurú ẹ̀rọ1 ẹyọ
Ìsúrù igi #8 x 1"Ìsúrù igi #8 x 1"1 ẹyọ

Àwọn irinṣẹ́ tí a nílò:

Ayùn IrinAyùn Irin
Ẹ̀rọ Ìlùkòkò AláìlókùnẸ̀rọ Ìlùkòkò Aláìlókùn
Àkójọ Orí ÌlùkòkòÀkójọ Orí Ìlùkòkò
Ìṣù àwọn ohun ìyí skurúÌṣù àwọn ohun ìyí skurú
Ayùn KópìngìAyùn Kópìngì
7

The build in 3D

FreeCAD model of this build, not of the patent: the conical tub cut away on its journals between the standards, the outer fan H, the conical tube K with the inner fan L on the hollow shaft above it, and under the bottom the shell gear, stud pinion and spur gear between the cross bar and bridge.
Fáìlì ÀpẹrẹBLENDCC0 - Free
8

Churn, tip and work

Let the heavy cream stand until it reaches about 15 °C, checked with the thermometer. Pour in 2 litres, fit both cover halves and crank steadily; time until the butter comes. Set a jug under the aperture, free the fork and tip the tub about 90 degrees onto its side, aperture down; crank on so the fans knead the butter while the buttermilk runs out. Stand it up, add cold water, churn a little, tip and drain again until the water runs clear; work in a pinch of salt the same way 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

Gears that jam, a tub that leaks

Tilting-tub counter-fan churn troubleshooting.

Flow

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10

History and honest limits

**Lucian A. Brown and Hubbard Bigelow** of Hartford, Connecticut, assignors to Henry K. W. Welch, received US 9,311, dated 5 October 1852; they signed the specification on 12 April 1852. They wrote that a cover is needed to stop the cream spattering, though the figure does not show it, and that working the butter in the tub saves lifting and the buttermilk. The ratio of 2 to 3, they wrote, was "a fact only learned by experiments, and corroborated by their repetition." They claimed the combination of the tub E and its appendages with the frame and standards, or any other frame adapted to use the tub in a vertical and a horizontal position. **Honest limits.** A container, pine and printed parts stand in for theirs; the gear sizes are ours. 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

15

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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