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Valved Air-Tube Dasher Churn: A Double-Acting Valve Lets Air Out of a Tube That Swings With the Dashers
William A. Vertrees, Winchester, Missouri · Public domain (expired patent)
Buttercup

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Buttercup

7. Oktoba 2026IE
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Valved Air-Tube Dasher Churn: A Double-Acting Valve Lets Air Out of a Tube That Swings With the Dashers

William A. Vertrees of Winchester, Missouri, received US 16,203, dated 9 December 1856, for an air tube turning with the dashers, bent horizontal at its foot, with "a double-acting valve" at its mouth that opens on the side away from the motion as the shaft is swung back and forth by a strap from a pulley and lever. This rung prints the dasher arms, step, elbow, valve flap, clips and pulley, builds the churn and makes butter.
Kati
About 4 hours, plus printing

Maagizo

1

Air from the tube's mouth

Inapakia daftari la Jupyter…
2

Air drawn into the cream before it

Webster draws air down a turning agitator; Vertrees down a tube with a two-way valve.
3

Read US 16,203

"It may be seen that as the pipe revolves to the right the inner end of the valve (V,) will be pressed against the right side closing the right side of the aperture and allowing the air to pass out on the left side behind the wing of the valve by centrifugal force and when it revolves in the contrary direction the valve acts on the contrary side with similar effect."
4

Print the parts

Print the dasher arms, the cross step, the elbow with its orifice, the valve flap, two tube clips and the pulley. Print in PETG at 0.2 mm layers, 30 % infill, 4 walls; wash before first use.

Vifaa kwa hatua hii:

Uzi wa PETGUzi wa PETG1 kipande

Zana zinazohitajika:

Printa ya 3D ya nyuzi (FDM)Printa ya 3D ya nyuzi (FDM)
5

Print the dasher arms

The dasher arms, printed as step 4 describes.
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Pakua modeli
6

Print the cross step

The cross step, printed as step 4 describes.
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Pakua modeli
7

Print the elbow with its orifice

The elbow with its orifice, printed as step 4 describes.
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Pakua modeli
8

Print the valve flap

The valve flap, printed as step 4 describes.
Faili ya UsanifuSTLCC0 - Free
Pakua modeli
9

Print the tube clip

The tube clip, printed as step 4 describes.
Faili ya UsanifuSTLCC0 - Free
Pakua modeli
10

Print the pulley

The pulley, printed as step 4 describes.
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Pakua modeli
11

Dashers and air tube

Lay the cross step in a straight-sided round food-grade container about 190 mm across and stand a 10 mm square hardwood shaft in it, the dasher arms on its foot. Pin the flap in the elbow's orifice with a 2 mm stainless pin, glue the elbow on a 20 mm food-grade pipe reaching above the cream, and tie the pipe to the shaft with the clips, between the arms.

Vifaa kwa hatua hii:

Chombo cha kuhifadhi cha daraja la chakulaChombo cha kuhifadhi cha daraja la chakula1 kipande
Vijiti vya mbao ngumuVijiti vya mbao ngumu1 kipande
Bomba la PVCBomba la PVC1 kipande
Ufito wa chuma lainiUfito wa chuma laini1 kipande
Epoksi ya Sehemu MbiliEpoksi ya Sehemu Mbili1 kipande

Zana zinazohitajika:

Msumeno wa mkonoMsumeno wa mkono
Msumeno wa chumaMsumeno wa chuma
12

Pulley, strap and lever

Stand a pine post beside the churn and mount the pulley on a 10 mm rod near its top. Fix one end of a leather strap to the pulley, wind it round the pulley, take it across and wind it a few turns round the shaft, and fix it. Glue a 12 mm dowel lever into the pulley's socket.

Vifaa kwa hatua hii:

Ubao wa msonobariUbao wa msonobari1 kipande
Ufito wa chuma lainiUfito wa chuma laini1 kipande
Ukanda wa ngoziUkanda wa ngozi1 kipande
Vijiti vya mbao ngumuVijiti vya mbao ngumu1 kipande
Skrubu ya mti #8 x inchi 1Skrubu ya mti #8 x inchi 11 kipande

Zana zinazohitajika:

Msumeno wa mkonoMsumeno wa mkono
Kekee cha BetriKekee cha Betri
Seti ya vichimbuziSeti ya vichimbuzi
Seti ya bisibisiSeti ya bisibisi
13

The patent drawing

US 16,203 drawing sheet, public domain (expired patent).
Hatua 13 - Image 1
14

Churn

Let the heavy cream stand until it reaches about 15 °C, checked with the thermometer. Pour in 2 litres, below the pipe's top. Raise and lower the lever steadily so the shaft swings back and forth; watch for bubbles near the bottom; 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.

Vifaa kwa hatua hii:

Malai nzitoMalai nzito2000 ml
Chumvi ya Bahari MbichiChumvi ya Bahari Mbichi1 kipande
MajiMaji1 kipande

Zana zinazohitajika:

Kipima joto chenye kijiti kinachobaki ndaniKipima joto chenye kijiti kinachobaki ndani
Saa ya kupima mudaSaa ya kupima muda
Mizani ya dijitali ya jikoniMizani ya dijitali ya jikoni
Bakuli kubwa la kuchanganyia la chuma cha puaBakuli kubwa la kuchanganyia la chuma cha pua
15

Troubleshooting

Valved air-tube churn troubleshooting.

Flow

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16

History and honest limits

**William A. Vertrees** of Winchester, Clark County, Missouri, US 16,203, 9 December 1856. The shaft stood in a cross piece laid loosely in the bottom, easy to lift out for washing. He claimed the air tube with its double-acting valve. A container, pipe, pine and printed parts stand in for his; the notebook's speeds are estimates. FDM prints hold food in their layer lines, so wash well and replace when worn.

Vifaa

12

Zana Zinazohitajika

10

Faili za muundo

6

Mchoro huu unatengeneza

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Blueprint hizi zinashiriki maarifa — mbinu, vifaa au kanuni

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