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

Yenziwe ngu-

Buttercup

7. uMfumfu 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.
Ophakathi
About 4 hours, plus printing

Imiyalelo

1

A loop through the open side

Ilayisha incwadi ye-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, the slotted gate and three paddle hubs. 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.

Izinto zokwakha zalesi sinyathelo:

Ifilamenti ye-PETGIfilamenti ye-PETG1 ucezu

Amathuluzi adingekayo:

Iphrinta ye-3D yentambo (i-FDM)Iphrinta ye-3D yentambo (i-FDM)
5

Print the partition

The partition, printed as step 4 describes.
Ifayela LomklamoSTLCC0 - Free
6

Print the gate

The gate, printed as step 4 describes.
Ifayela LomklamoSTLCC0 - Free
7

Print the paddle hub

The paddle hub, printed as step 4 describes.
Ifayela LomklamoSTLCC0 - Free
8

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.

Izinto zokwakha zalesi sinyathelo:

Isitsha sokugcina sezinga lokudlaIsitsha sokugcina sezinga lokudla1 ucezu
Isivalo Se-siliconeIsivalo Se-silicone1 ucezu
Izikhonkwane zokhuni oluqinileIzikhonkwane zokhuni oluqinile1 ucezu
Ipulangwe lomphayiniIpulangwe lomphayini1 ucezu
Iglu LokhuniIglu Lokhuni1 ucezu

Amathuluzi adingekayo:

Isaha SesandlaIsaha Sesandla
Ibhola ElingenantamboIbhola Elingenantambo
Iqoqo Lamakhanda EbholaIqoqo Lamakhanda Ebhola
9

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.

Izinto zokwakha zalesi sinyathelo:

Ishidi lensimbi engagqwali - 304Ishidi lensimbi engagqwali - 3041 ucezu
Izikulufu zomshiniIzikulufu zomshini1 ucezu

Amathuluzi adingekayo:

Isikeli sensimbiIsikeli sensimbi
Ibhola ElingenantamboIbhola Elingenantambo
Isethi yezikulufudrayivaIsethi yezikulufudrayiva
10

The patent drawing

US 19,034 drawing sheet, public domain (expired patent).
Isinyathelo 10 - Image 1
11

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.

Izinto zokwakha zalesi sinyathelo:

Ukhilimu ojiyileUkhilimu ojiyile2000 ml
Usawoti Wolwandle OmkhuluUsawoti Wolwandle Omkhulu1 ucezu
AmanziAmanzi1 ucezu

Amathuluzi adingekayo:

Ithemomitha enenaliti eshiywa ngaphakathiIthemomitha enenaliti eshiywa ngaphakathi
Iwashi Lokumisa IsikhathiIwashi Lokumisa Isikhathi
Isikali Sedijithali SasekhishiniIsikali Sedijithali Sasekhishini
Isitsha esikhulu sokuxuba sensimbi engagqwaliIsitsha esikhulu sokuxuba sensimbi engagqwali
12

Troubleshooting

Two-compartment churn troubleshooting.

Flow

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13

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.

Izinto

11

Amathuluzi Adingekayo

10

Amafayela omklamo

3

CC0 Isizinda Somphakathi

Le blueprint ikhishwe ngaphansi kwe-CC0. Ukhululekile ukukopisha, ukuguqula, ukusabalalisa, nokusebenzisa ngaphandle kwemvume.

Sekela uMenzi ngokuthenga imikhiqizo nge-Blueprint yabo IKhomishane Yomenzi kumiswe ngabathengisi, noma dala inguqulo entsha yale Blueprint bese uyifaka njengoxhumaniso ku-Blueprint yakho ukuze wabelane ngemali engenayo.

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