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Bulged-Rocker Separator Churn: Oblique Rockers and a Diagonal Comb
William Newbrough, Mohican, Ohio · Public domain (expired patent)
Spindle

Creado por

Spindle

7. octubre 2026SE
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Bulged-Rocker Separator Churn: Oblique Rockers and a Diagonal Comb

William Newbrough of Mohican, Ohio, received US 14,677, dated 15 April 1856, for "oblique, bulged, rockers" under a box churn combined with a diagonal separator inside it, "for producing a violent agitation of the cream." This rung prints the separator, rockers and bearings, builds the churn and makes butter.
Principiante
About 3 hours, plus printing

Instrucciones

1

Rockers on the diagonal

Cargando el cuaderno de Jupyter…
2

A rocking churn before it

An earlier churn rocked on its stool; Newbrough sets his rockers obliquely and adds a separator.
3

Read US 14,677

"The churn is then rocked from side to side producing a rapid and violent agitation of the cream toward the sides and ends of the box and through the separator, causing thereby a speedy transformation of the cream to butter: the separator serving to catch the particles of butter and assist in the gathering of the same."
4

Print the parts

Print the separator, two rockers and two bearings. Print in PETG at 0.2 mm layers, 30 % infill, 4 walls; wash before first use.

Materiales para este paso:

Filamento PETGFilamento PETG1 pieza

Herramientas necesarias:

Impresora 3D de filamento (FDM)Impresora 3D de filamento (FDM)
5

Print the separator

The separator, printed as step 4 describes.
Archivo de DisenoSTLCC0 - Free
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6

Print the rocker

The rocker, printed as step 4 describes.
Archivo de DisenoSTLCC0 - Free
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7

Print the bearing

The bearing, printed as step 4 describes.
Archivo de DisenoSTLCC0 - Free
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8

Box and separator

Use a rectangular food-grade container about 220 by 140 mm. Seal the two bearings in opposite corners with food-safe silicone and stand the separator's legs in them along the diagonal.

Materiales para este paso:

Recipiente de almacenaje de grado alimentarioRecipiente de almacenaje de grado alimentario1 pieza
Sellador de siliconaSellador de silicona1 pieza

Herramientas necesarias:

Papel de lijaPapel de lija
9

Rockers and handle

Screw the two rockers under a pine board, parallel, running from alternate corners, with the swells on opposite sides, and stand the box on it. Push a 10 mm square hardwood shaft down through the lid into the separator and fix a thin hardwood lath on top as the springy handle.

Materiales para este paso:

Tabla de pinoTabla de pino1 pieza
Tornillo para madera n.º 8 x 1"Tornillo para madera n.º 8 x 1"1 pieza
Espigas de madera duraEspigas de madera dura1 pieza

Herramientas necesarias:

SerruchoSerrucho
Taladro inalámbricoTaladro inalámbrico
Juego de destornilladoresJuego de destornilladores
10

The patent drawing

US 14,677 drawing sheet, public domain (expired patent).
Paso 10 - Image 1
11

Churn

Let the heavy cream stand until it reaches about 15 °C, checked with the thermometer. Pour in 1 litre and close the lid. Rock the box from side to side by the handle; 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.

Materiales para este paso:

Crema de leche espesaCrema de leche espesa1000 ml
Sal marina gruesaSal marina gruesa1 pieza
AguaAgua1 pieza

Herramientas necesarias:

Termómetro de sonda permanenteTermómetro de sonda permanente
CronómetroCronómetro
Báscula digital de cocinaBáscula digital de cocina
Bol grande de acero inoxidableBol grande de acero inoxidable
12

Troubleshooting

Bulged-rocker churn troubleshooting.

Flow

Loading...
13

History and honest limits

**William Newbrough** of Mohican, Ashland County, Ohio, US 14,677, 15 April 1856. He wrote that the rockers could go under any ordinary churn. He claimed the combination of the oblique bulged rockers with the diagonal separator. A container, pine and printed parts stand in for his box. FDM prints hold food in their layer lines, so wash well and replace when worn.

Materiales

9

Herramientas requeridas

9

Archivos de diseño

3

Este plano hace

Thumbnail
Marcador

Mantequera

Free

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