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Endless-Chain Trailing-Paddle Churn: Paddles Hung on a Chain Drag Through the Cream
Harvey Brown, New York, New York · Public domain (expired patent)
Buttercup

Creado por

Buttercup

7. octubre 2026IE
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Endless-Chain Trailing-Paddle Churn: Paddles Hung on a Chain Drag Through the Cream

Harvey Brown of New York received US 19,828, dated 6 April 1858, for a churn in which two shafts across a box carry notched wheels, an endless chain of links and connecting rods runs over them, and trailing paddles hang from the rods, twelve in his model. This rung prints the wheels, links and paddles, builds the box and makes butter.
Avanzado
About 5 hours, plus printing

Instrucciones

1

The chain in numbers

Cargando el cuaderno de Jupyter…
2

Paddles on a cylinder, before it

Pike set paddles on a turning cylinder; Brown hung them on an endless chain.
3

Read US 19,828

"The object of this invention is the churning of butter by agitation incidentally but more particularly by friction from the operation of the trailing paddles as attached to an endless chain in this invention, or to a single cylinder to which they might be attached and inclosed in a corresponding box."
4

Print the parts

Print four notched wheels, 24 links and 12 paddles. 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 notched wheel

The notched wheel, printed as step 4 describes.
Archivo de DisenoSTLCC0 - Free
Descargar modelo
6

Print the link

The link, printed as step 4 describes.
Archivo de DisenoSTLCC0 - Free
Descargar modelo
7

Print the paddle

The paddle, printed as step 4 describes.
Archivo de DisenoSTLCC0 - Free
Descargar modelo
8

Box and shafts

Use a food-grade container about 360 × 140 × 200 mm. Drill its sides for two 10 mm square hardwood shafts, 150 mm apart and 90 mm above the floor; one passes out through the side for the crank. Fix two wheels on each shaft, 88 mm apart, and seal the holes.

Materiales para este paso:

Recipiente de almacenaje de grado alimentarioRecipiente de almacenaje de grado alimentario1 pieza
Espigas de madera duraEspigas de madera dura1 pieza
Sellador de siliconaSellador de silicona1 pieza

Herramientas necesarias:

Taladro inalámbricoTaladro inalámbrico
Juego de brocasJuego de brocas
SerruchoSerrucho
9

Chain and paddles

Cut twelve 104 mm rods of 4 mm steel. Join them with the links, two at each end, into an endless chain; thread a paddle on each rod by its eye. Lay the chain over the wheels, a rod in every notch, and glue a pine crank on the long shaft.

Materiales para este paso:

Redondo de acero dulceRedondo de acero dulce1 pieza
Tabla de pinoTabla de pino1 pieza
Cola de carpinteroCola de carpintero1 pieza

Herramientas necesarias:

Sierra para metalesSierra para metales
Lima para metalLima para metal
10

The build in 3D

FreeCAD model of this build: the box cut open to show the two shafts, four notched wheels, the twelve-rod chain and the trailing paddles dragging along its lower run.
Archivo de DisenoBLENDCC0 - Free
Descargar modelo
11

Crank and churn

Let the heavy cream stand until it reaches about 15 °C, checked with the thermometer. Pour in 1.5 litres. Crank so the top of the chain moves away from the crank; the paddles trail through the cream. 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.
Paso 11 - Image 1

Materiales para este paso:

Crema de leche espesaCrema de leche espesa1500 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

Endless-chain churn troubleshooting.

Flow

Loading...
13

History and honest limits

**Harvey Brown** of New York, US 19,828, 6 April 1858. He claimed the arrangement of the trailing paddles, wheels and gearing. He also allowed a floating board on the cream to add friction on the paddles' return; we leave it out. His drawing gives no sizes; ours are ours. FDM prints hold food in their layer lines, so wash well and replace when worn.

Materiales

10

Herramientas requeridas

10

Archivos de diseño

4

Este plano hace

Thumbnail
Marcador

Mantequera

Free

19
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