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Pinwheel Air-Tube Churn: A Beater Cut From One Tin Sheet, Tubes That Feed the Wave
Simeon F. Emerson, Canaan, Ohio · Public domain (expired patent)
YourGrandma

Dibuat oleh

YourGrandma

6. Oktober 2026IS
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Pinwheel Air-Tube Churn: A Beater Cut From One Tin Sheet, Tubes That Feed the Wave

Emerson wanted a dasher "which unites simplicity with efficiency." Simeon F. Emerson of Canaan, Ohio, received US 7,236, dated 2 April 1850, for an atmospheric churn in a square box whose cover is in two pieces, one removable to inspect the cream. The beater is a squared sheet of tin plate "slit from each of the corners toward the center of the sheet for rather more than half the distance," every other corner turned in, on an upright spindle turned by a crank and wheel. "Inclined tubes, d, are secured to the sides of the churn tub; these incline forward, as they descend, in the direction in which the dasher is revolved." This rung works out the cuts, then makes the beater from stainless sheet with a printed template (or prints it), fits inclined tubes in a box, and makes butter.
Pemula
About 2 hours, plus printing

Instruksi

1

The cuts

Memuat notebook Jupyter…
2

Air fed into the whirl before it

The embedded blueprint lets the whirl bring air into a cone. Emerson breaks the whirl with tubes on the walls that feed air into its wave.
3

Read US 7,236

"A squared sheet of tin plate or other metal is slit from each of the corners toward the center of the sheet for rather more than half the distance from the corner to the center. Every other one of the eight corners thus produced is turned inward toward the center of the sheet, and the four are united there thus forming a beater B, with four arms."
4

Make the beater

Print the template (/uploads/blueprints/pinwheel-air-tube-churn-sheet-template.stl), lay it on a 150 mm square of 0.5 mm stainless sheet, mark the four slits and the centre hole, and cut them with snips and a drill. Deburr, then bend every other point in toward the centre and rivet or bolt the four together through a hole, as he united them. Or print the finished pinwheel (/uploads/blueprints/pinwheel-air-tube-churn-printed-beater.stl). Print in PETG at 0.2 mm layers, 30 % infill, 4 walls; wash before first use.

Material untuk langkah ini:

Lembaran baja nirkarat - 304Lembaran baja nirkarat - 3041 buah
Sekrup mesinSekrup mesin1 buah
Mur Segi EnamMur Segi Enam1 buah
Filamen PETGFilamen PETG1 buah

Alat yang dibutuhkan:

Gunting sengGunting seng
Alat penghilang duri sisaAlat penghilang duri sisa
Bor Tanpa KabelBor Tanpa Kabel
Set Mata BorSet Mata Bor
Pencetak 3D filamen (FDM)Pencetak 3D filamen (FDM)
5

Tubes on the sides

Print six tube clips (/uploads/blueprints/pinwheel-air-tube-churn-tube-clip.stl). Cut three 200 mm lengths of 16 mm food-grade tube and clip one to each of three sides of a food-safe square box, open at both ends, leaning about 18° forward as they go down in the direction the beater will turn.

Material untuk langkah ini:

Pipa PVCPipa PVC1 buah
Wadah penyimpanan mutu panganWadah penyimpanan mutu pangan1 buah
Sekrup kayu #8 x 1"Sekrup kayu #8 x 1"1 buah

Alat yang dibutuhkan:

Gergaji BesiGergaji Besi
Set obengSet obeng
6

Spindle and crank

Fix the beater near the foot of a 10 mm square hardwood spindle and stand it in a seat drilled in the box's floor. Cut a two-piece plywood lid, one piece removable, with a hole for the spindle; glue a crank arm and handle on top.

Material untuk langkah ini:

Pasak kayu kerasPasak kayu keras1 buah
Lembaran kayu lapisLembaran kayu lapis1 buah
Lem KayuLem Kayu1 buah

Alat yang dibutuhkan:

Gergaji TanganGergaji Tangan
Gergaji CopingGergaji Coping
Bor Tanpa KabelBor Tanpa Kabel
7

The build in 3D

FreeCAD model of this build, not of the patent: the box cut away to show the four-armed pinwheel beater on its spindle and the inclined air tubes on its sides.
Berkas desainBLENDCC0 - Free
Unduh model
8

Crank and make butter

Let the heavy cream stand until it reaches about 15 °C, checked with the thermometer. Pour in 2 litres, below the tubes' tops. Crank steadily the way the tubes lean; 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.
Langkah 8 - Image 1

Material untuk langkah ini:

Krim kentalKrim kental2000 ml
Garam Laut KasarGaram Laut Kasar1 buah
AirAir1 buah

Alat yang dibutuhkan:

Termometer probe tinggal-pasangTermometer probe tinggal-pasang
StopwatchStopwatch
Timbangan Dapur DigitalTimbangan Dapur Digital
Mangkuk aduk baja nirkarat (besar)Mangkuk aduk baja nirkarat (besar)
9

Cream up the tubes, a beater that bends

Pinwheel air-tube churn troubleshooting.

Flow

Loading...
10

History and honest limits

**Simeon F. Emerson** of Canaan, Wayne County, Ohio, received US 7,236, dated 2 April 1850. The spindle was stepped in the tub's bottom and turned through a wheel and crank on the cover; the parts could be of "such materials as the manufacturer may deem best suited" for "efficiency, cheapness, and facility for cleaning." He claimed the combination of the dasher with the stationary inclined air channels on the churn tub. **Honest limits.** Stainless sheet stands in for his tin plate; our crank turns the spindle directly. FDM prints hold food in their layer lines, so wash well and replace when worn. Your times and weights are the result.

Bahan

13

Alat yang Diperlukan

13

Berkas desain

1

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Blueprint ini berbagi pengetahuan — teknik, bahan, atau prinsip

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CC0 Domain Publik

Cetak biru ini dirilis di bawah CC0. Anda bebas untuk menyalin, memodifikasi, mendistribusikan, dan menggunakan karya ini untuk tujuan apa pun, termasuk komersial, tanpa meminta izin.

Dukung Maker dengan membeli produk melalui Cetak Biru mereka di mana mereka mendapatkan Komisi Pembuat yang ditetapkan oleh Penjual, atau buat iterasi baru dari Cetak Biru ini dan masukkan sebagai koneksi di milik Anda sendiri.

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