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Two-Compartment Gate Churn: Paddles Drive the Cream Through a Slotted Gate Into an Open Side and Round Again
Buttercup

Creato da

Buttercup

7. ottobre 2026IE
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Two-Compartment Gate Churn: Paddles Drive the Cream Through a Slotted Gate Into an Open Side and Round Again

Silas F. Lefler of Racine, Wisconsin, received US 19,034, dated 5 January 1858, for a churn divided into a closed compartment, where spiral paddles turn under a housing, and an open one, joined by gateways at the partition's foot. A slotted gate in one gateway breaks the current, and the cream, driven into the open side, "is exposed to the action of the fresh air" before it returns. This rung prints the partition, gate and paddle hubs, builds the churn and makes and gathers butter.
Intermedio
About 4 hours, plus printing

Istruzioni

1

A loop through the open side

Caricamento del notebook Jupyter…
2

Cream sent round a divided vessel, before it

True splits the cream round a separator; Lefler drives it in a loop through a gate and an open side.
3

Read US 19,034

"The shaft with the paddles being then revolved, the cream in the close compartment (A) will be forced through the gate (G), thus breaking its direct motion and causing it to force its way into the open compartment (B) in a highly agitated state most propitious for the formation of butter."
4

Print the parts

Print the partition with its gateways and guideways (/uploads/blueprints/two-compartment-gate-churn-partition.stl), the slotted gate (/uploads/blueprints/two-compartment-gate-churn-gate.stl) and three paddle hubs (/uploads/blueprints/two-compartment-gate-churn-paddle-hub.stl). The partition needs a bed at least 240 mm long. Print in PETG at 0.2 mm layers, 30 % infill, 4 walls; wash before first use.

Materiali per questo passaggio:

Filamento PETGFilamento PETG1 pezzo

Strumenti necessari:

Stampante 3D a filamento (FDM)Stampante 3D a filamento (FDM)
5

Box, partition and shaft

Use a rectangular food-grade container about 240 by 170 mm and 180 mm deep. Stand the partition across its length 50 mm from one side, sealed at its ends with food-safe silicone. Run a 10 mm square hardwood shaft through the container's ends in the larger compartment, the three hubs on it each turned 40 degrees, with a crank outside.

Materiali per questo passaggio:

Contenitore di conservazione per uso alimentareContenitore di conservazione per uso alimentare1 pezzo
Sigillante siliconicoSigillante siliconico1 pezzo
Tasselli di legno duroTasselli di legno duro1 pezzo
Tavola di pinoTavola di pino1 pezzo
Colla da legnoColla da legno1 pezzo

Strumenti necessari:

Sega a manoSega a mano
Trapano a batteriaTrapano a batteria
Serie di punte da trapanoSerie di punte da trapano
6

Housing and gate

Bend a strip of thin stainless sheet over the paddles as the housing, screwed to the container's ends. Slide the gate into the guideways in front of the gateway on the side where the paddles rise.

Materiali per questo passaggio:

Lamiera di acciaio inossidabile - 304Lamiera di acciaio inossidabile - 3041 pezzo
Viti da metalloViti da metallo1 pezzo

Strumenti necessari:

Cesoie da lattoniereCesoie da lattoniere
Trapano a batteriaTrapano a batteria
Set di cacciavitiSet di cacciaviti
7

The patent drawing

US 19,034 drawing sheet, public domain (expired patent).
Passo 7 - Image 1
8

Churn, then gather

Let the heavy cream stand until it reaches about 15 °C, checked with the thermometer. Pour 2 litres into the open side. Crank steadily; time until the butter comes. Move the gate to the other gateway and crank on until the butter has gathered in the open side before it, then lift it out. 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.

Materiali per questo passaggio:

Panna da montarePanna da montare2000 ml
Sale marino grossoSale marino grosso1 pezzo
AcquaAcqua1 pezzo

Strumenti necessari:

Termometro a sonda permanenteTermometro a sonda permanente
CronometroCronometro
Bilancia digitale da cucinaBilancia digitale da cucina
Grande ciotola da impasto in acciaio inossidabileGrande ciotola da impasto in acciaio inossidabile
9

Troubleshooting

Two-compartment churn troubleshooting.

Flow

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10

History and honest limits

**Silas F. Lefler** of Racine, Wisconsin, US 19,034, 5 January 1858. He made the partition and shaft removable so the churn could be cleaned thoroughly. He claimed the churn of an open and a closed compartment with gateways and a gate passing the cream in a continuous current and gathering the butter. A stainless strip stands in for his housing; a container and printed parts for the rest. FDM prints hold food in their layer lines, so wash well and replace when worn.

Materiali

11

Strumenti richiesti

10

Questo progetto realizza

CC0 Pubblico dominio

Questo progetto è rilasciato sotto CC0. Sei libero di copiare, modificare, distribuire e utilizzare quest'opera per qualsiasi scopo, senza chiedere permesso.

Supporta il Maker acquistando prodotti tramite il suo progetto dove guadagna una Commissione Maker stabilita dai venditori, oppure crea una nuova iterazione di questo progetto e includilo come collegamento nel tuo progetto per condividere i ricavi.

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