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Pendulum Swing Dash Churn: Rock the Hanging Tank, the Dasher Works Itself
Ithiel S. Richardson, Boston, Massachusetts · Public domain (expired patent)
Martin

Nilikha ni

Martin

6. Oktubre 2026NO
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Pendulum Swing Dash Churn: Rock the Hanging Tank, the Dasher Works Itself

Richardson made the swing of the churn drive the dasher. Ithiel S. Richardson of Boston, Massachusetts, received US 8,146, dated 10 June 1851, for what he called the "Oscillating Perpendicular Dash-Churn": a tank hung in a swing between standards four feet long, joined at the top and spread three and a half feet at the bottom; a connecting rod from the swing rocks a bent lever on a rock shaft that works the dash stick up and down. The dash stick is hollow over a staff on a perforated false bottom, with a valved plug to let air in, so no vacuum slows the dasher; afterward the false bottom lifts out as a strainer, "bringing with it the butter." This rung works out the swing's pace, then prints the dasher, false bottom and valve plug, builds the frame and swing, and makes butter.
Abantado
About 6 hours, plus printing

Mga Tagubilin

1

The swing's pace

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2

A swinging churn that works its dashers before it

The embedded blueprint swings a platform whose toothed pieces work two dashers. Richardson hangs the tank in a pendulum frame and works one dasher through a bent lever.
3

Read US 8,146

"The hand holding the rod L communicates a backward and forward motion to the swing, which motion the swing communicates from one of its upright parts, through the connecting rod K to the arm J of the bent lever G H J, which bent lever, from its arm G, gives the motion to the dash stick F."
4

Print the parts

Print the perforated dasher with its socket (/uploads/blueprints/pendulum-swing-dash-churn-dasher.stl), the perforated false bottom with its staff socket (/uploads/blueprints/pendulum-swing-dash-churn-false-bottom.stl) and the valve plug (/uploads/blueprints/pendulum-swing-dash-churn-valve-plug.stl). Print in PETG at 0.2 mm layers, 30 % infill, 4 walls; wash before first use.

Mga materyales para sa hakbang na ito:

PETG filamentPETG filament1 piraso

Mga kailangang kasangkapan:

Limbagang 3D na FDMLimbagang 3D na FDM
5

Frame and swing

Build two A-frames of pine about 800 mm tall and join their tops with a 12 mm steel rod. Hang a swing from it: two pine uprights and a plywood board at their feet. Stand a straight-sided food-grade container on the board as the tank, strapped to the uprights.

Mga materyales para sa hakbang na ito:

Tablang pinoTablang pino1 piraso
Bilog na Bara ng Malambot na AseroBilog na Bara ng Malambot na Asero1 piraso
Plantsa ng playwudPlantsa ng playwud1 piraso
Sisidlan ng imbakan na antas pagkainSisidlan ng imbakan na antas pagkain1 piraso
Turnilyong pangkahoy #8 x 1"Turnilyong pangkahoy #8 x 1"1 piraso
Guhit na balatGuhit na balat1 piraso

Mga kailangang kasangkapan:

Lagaring PangkamayLagaring Pangkamay
Walang-Kableng BarenaWalang-Kableng Barena
Hanay ng Talim ng BarenaHanay ng Talim ng Barena
Set ng mga distornilyadorSet ng mga distornilyador
Mga clampMga clamp
6

Dasher, lever and rod

Bore a length of 18 mm food-grade tube as the hollow dash stick and fit the valve plug through its side near the top, with a small leather flap inside so air enters but cannot leave that way. Glue the dasher on its foot. Set the false bottom in the tank with a 12 mm dowel staff rising inside the dash stick, and hold it with a wedge. Pivot a pine bent lever on a rock shaft across the frame's top, couple its long arm to the dash stick and its short arm by a pine rod to one swing upright.

Mga materyales para sa hakbang na ito:

Tubong PVCTubong PVC1 piraso
Guhit na balatGuhit na balat1 piraso
Mga tarugong matigas na kahoyMga tarugong matigas na kahoy1 piraso
Tablang pinoTablang pino1 piraso
Mga turnilyo ng makinaMga turnilyo ng makina1 piraso
Tuerkang HeksagonalTuerkang Heksagonal1 piraso
Epoksing dalawang bahagiEpoksing dalawang bahagi1 piraso

Mga kailangang kasangkapan:

Lagaring Pang-metalLagaring Pang-metal
Walang-Kableng BarenaWalang-Kableng Barena
Hanay ng Talim ng BarenaHanay ng Talim ng Barena
Set ng mga distornilyadorSet ng mga distornilyador
Llaveng inglesLlaveng ingles
7

The patent drawing

US 8,146 drawing sheet, public domain (expired patent).
Hakbang 7 - Image 1
8

Swing and make butter

Let the heavy cream stand until it reaches about 15 °C, checked with the thermometer. Pour in 2 litres and put on the lid. Swing the tank steadily to and fro at its own pace; the dasher rises and falls. Time until the butter comes. Lift the false bottom out by its staff, bringing the butter with it, and let the buttermilk drain back. Rinse and salt the butter in a bowl, and weigh it.

Mga materyales para sa hakbang na ito:

Makapal na kremaMakapal na krema2000 ml
Magaspang na Asin sa DagatMagaspang na Asin sa Dagat1 piraso
TubigTubig1 piraso

Mga kailangang kasangkapan:

Termometro na naiiwang nakatusokTermometro na naiiwang nakatusok
Panukat ng OrasPanukat ng Oras
Digital na Timbangang PangkusinaDigital na Timbangang Pangkusina
Malaking mangkok na panghalo na asero na hindi kinakalawangMalaking mangkok na panghalo na asero na hindi kinakalawang
9

A dasher that sticks, a swing that won't keep going

Pendulum swing dash churn troubleshooting.

Flow

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10

History and honest limits

**Ithiel S. Richardson** of Boston, Suffolk County, Massachusetts, received US 8,146, dated 10 June 1851 (the drawing sheet's lettering reads "J. S."; the specification gives Ithiel). His standards were 2½ by 1½ inches square and four feet long; the swing's board was 12 by 16 inches; the stroke could be shortened by moving the couplings. He claimed the combination of the rock shaft, levers, connecting rod and swing for producing the perpendicular movement of the dasher. **Honest limits.** A smaller frame, a food-grade container and printed parts 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.

Mga Materyales

15

Mga Kinakailangang Kasangkapan

12

Ang blueprint na ito ay gumagawa ng

Thumbnail
Placeholder

Panghalo ng mantikilya

Free

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Kaugnay na Blueprint

Ang mga blueprint na ito ay nagbabahagi ng kaalaman — mga teknik, materyales, o prinsipyo

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CC0 Pampublikong Domain

Ang blueprint na ito ay inilabas sa ilalim ng CC0. Malaya kang kumopya, magbago, mamahagi, at gumamit nang walang pahintulot.

Suportahan ang Maker sa pamamagitan ng pagbili ng mga produkto sa kanilang Blueprint Komisyon ng Maker itinakda ng mga Vendor, o lumikha ng bagong bersyon ng Blueprint na ito at isama bilang koneksyon sa iyong Blueprint upang ibahagi ang kita.

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