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Twin-Cylinder Tube-Link Churn: Two Churns Pumped Into Each Other Through a Tube
Daniel Fisher, College Corner, Ohio · Public domain (expired patent)
Karen

Imeundwa na

Karen

6. Oktoba 2026SE
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Twin-Cylinder Tube-Link Churn: Two Churns Pumped Into Each Other Through a Tube

Fisher knew double dasher churns already existed, so he claimed only what joined his two. Daniel Fisher of College Corner, Ohio, received US 7,870, dated 1 January 1851, for "connecting two vertical churns by a horizontal tube at their bottoms ... (said tube being about ten inches long, and about one fifth of the capacity of one of the vertical cylinders) in combination with the perforated cutters E E." A lever on an upright between the cylinders works perforated plungers on two rods; the cream is "alternately forced through the openings in the segmental slides E and those in the pistons." This rung checks the tube's proportion, then prints the tube, slides and plungers, joins two pots, and makes butter.
Kati
About 4 hours, plus printing

Maagizo

1

The tube's proportion

Inapakia daftari la Jupyter…
2

Two plungers driving cream between chambers before it

The embedded blueprint drives cream through a middle chamber. Fisher's two churns are joined by a tube that fills with air.
3

Read US 7,870

"The perforated cutters answer the double purpose of cutting the cream in its passage to and fro and only allowing sufficient cream to enter through the perforations at each stroke of the dashers to keep the tube half full or thereabout, thereby creating a partial vacuum in the tube, which becomes filled with air."
4

Print the parts

Print the link tube with its flanges, two perforated segmental slides and two perforated plungers. 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 link tube

The link tube, printed as step 4 describes.
Faili ya UsanifuSTLCC0 - Free
Pakua modeli
6

Print the segmental slide

The segmental slide, printed as step 4 describes.
Faili ya UsanifuSTLCC0 - Free
Pakua modeli
7

Print the plunger

The plunger, printed as step 4 describes.
Faili ya UsanifuSTLCC0 - Free
Pakua modeli
8

Join the pots

Take two straight-sided food-safe containers about 110 mm across. Drill each low in its side for the tube, push the tube's ends through and seal the flanges with silicone. Glue two thin plywood strips inside each pot either side of the opening as grooves, and slide a perforated slide down them over the tube's mouth. Stand both on a pine plank.

Vifaa kwa hatua hii:

Chombo cha kuhifadhi cha daraja la chakulaChombo cha kuhifadhi cha daraja la chakula2 vipande
Kizibo cha SilikoniKizibo cha Silikoni1 kipande
Bati la mbao za kubandikaBati la mbao za kubandika1 kipande
Ubao wa msonobariUbao wa msonobari1 kipande

Zana zinazohitajika:

Seti ya misumeno ya duaraSeti ya misumeno ya duara
Kekee cha BetriKekee cha Betri
Msumeno wa kukata mikunjoMsumeno wa kukata mikunjo
9

Lever and plungers

Screw a pine upright to the plank between the pots, rising above them, and pivot a pine lever on its top. Glue a 12 mm dowel rod in each plunger and join each to the lever on a loose screw, equally either side of the pivot.

Vifaa kwa hatua hii:

Ubao wa msonobariUbao wa msonobari1 kipande
Vijiti vya mbao ngumuVijiti vya mbao ngumu1 kipande
Skrubu za mashineSkrubu za mashine1 kipande
Nati ya pembe sitaNati ya pembe sita1 kipande
Gundi ya MbaoGundi ya Mbao1 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
10

The patent drawing

US 7,870 drawing sheet, public domain (expired patent).
Hatua 10 - Image 1
11

Pump and make butter

Let the heavy cream stand until it reaches about 15 °C, checked with the thermometer. Pour 1 litre into each pot. Work the lever up and down like a pump handle; 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
12

Leaks at the tube, a lever that sticks

Twin-cylinder tube-link troubleshooting.

Flow

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13

History and honest limits

**Daniel Fisher** of College Corner, Butler County, Ohio, received US 7,870, dated 1 January 1851. His cylinders stood on a horizontal plank with movable covers tied together at top; he explained the butter by "the oxygen of the atmosphere"; that is his account. **Honest limits.** Our tube is far smaller than his one fifth, as the notebook shows; printed parts and food-safe pots stand in for his. FDM prints hold food in their layer lines, so wash well and replace when worn. Your times and weights are the result.

Vifaa

13

Zana Zinazohitajika

11

Faili za muundo

3

Mchoro huu unatengeneza

Thumbnail
Kishikilia nafasi

Chombo cha kusukia siagi

Free

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Blueprint zinazohusiana

Blueprint hizi zinashiriki maarifa — mbinu, vifaa au kanuni

Double-Dasher Lever Churn: Swing One Lever, One Dasher Rises as the Other Falls

Double-Dasher Lever Churn: Swing One Lever, One Dasher Rises as the Other Falls

na WoodyNO

Utengenezaji mbao

36
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Interraking Plunger Churn: Two Rakes Worked Oppositely by a Double Crank

Interraking Plunger Churn: Two Rakes Worked Oppositely by a Double Crank

na MartinNO

CHAKULA NA VINYWAJI

23
0
0
0
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Twin-Plunger Air-Chamber Churn: Two Plungers Throw the Cream Through a Middle Chamber

Twin-Plunger Air-Chamber Churn: Two Plungers Throw the Cream Through a Middle Chamber

na EmmaSE

CHAKULA NA VINYWAJI

32
0
0
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