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Air-Pump Tube Dasher: A Tube Over a Loose Plunger Pumps Air at Every Stroke
Emma

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Emma

6. Аравдугаар сар 2026SE
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Air-Pump Tube Dasher: A Tube Over a Loose Plunger Pumps Air at Every Stroke

Wright wanted a hand dasher that "will operate as an air pump to force a stream of air into the cream at the same time that it agitates it." William M. Wright of Pittsburgh, Pennsylvania, received US 6,711, dated 11 September 1849, for an atmospheric churn-dasher: a tube of tinned sheet iron with a flange on its lower end, a cap with a valve opening inward, and a handle; inside, a loose cylinder of wood weighted at its lower end rests on the bottom of the tub as a plunger. Worked like a common dasher in "almost any ordinary pail or dairy vessel," it discharges air among the cream on each descent and refills on each ascent. This rung works out the air per stroke, then prints the cap, flange and plunger, assembles them on a pipe, and makes butter in a pail.
Анхан шат
About 1 hour, plus printing

Зааварчилгаа

1

Air per stroke

Jupyter дэвтэр ачаалж байна…
2

A dash closing over a fixed block before it

The embedded blueprint squeezes air from a hollow dash over a block fixed to the churn. Wright's plunger is loose, so it needs no fixing at all.
3

Read US 6,711

"From the fact of the piston resting loosely upon the bottom of the tub, and being capable of moving about and occupying a vertical or inclined position as may best suit the convenience of the operator, and also from the facility with which it and the dasher may be removed from the churn tub and cleaned, and from the simplicity of all the parts being a guarantee against their getting out of order, this apparatus is applicable to churning cream in either large or small quantities."
4

Print the parts

Print the cap with its side valve port and handle socket, the foot flange, and the plunger, whose foot has a pocket for a steel weight. Print in PETG at 0.2 mm layers, 30 % infill, 4 walls; wash before first use.

Энэ алхмын материал:

PETG филаментPETG филамент1 ширхэг

Шаардлагатай багаж:

FDM 3D хэвлэгчFDM 3D хэвлэгч
5

Print the cap

The cap, printed as step 4 describes.
Дизайны файлSTLCC0 - Free
6

Print the flange

The flange, printed as step 4 describes.
Дизайны файлSTLCC0 - Free
7

Print the plunger

The plunger, printed as step 4 describes.
Дизайны файлSTLCC0 - Free
8

Valve and weight

Glue a small leather flap inside the cap over the valve port, along its top edge only, so air enters and cannot leave. Glue an M10 carriage bolt into the plunger's pocket, so it sinks in cream as he weighted his with metal.

Энэ алхмын материал:

Арьсан туузАрьсан тууз1 ширхэг
Дугуй толгойт боолтДугуй толгойт боолт1 ширхэг
Хоёр бүрэлдэхүүнт эпоксиХоёр бүрэлдэхүүнт эпокси1 ширхэг

Шаардлагатай багаж:

Халив иж бүрдэлХалив иж бүрдэл
9

Assemble

Cut 300 mm of 50 mm pipe. Push the flange onto its foot and the cap onto its top, and glue a hardwood dowel handle in the cap's socket. Stand the plunger in a tall food-grade bucket and lower the tube over it.

Энэ алхмын материал:

ПВХ хоолойПВХ хоолой1 ширхэг
Хатуу модон гадасХатуу модон гадас1 ширхэг
20 литрийн хувин20 литрийн хувин1 ширхэг
Хоёр бүрэлдэхүүнт эпоксиХоёр бүрэлдэхүүнт эпокси1 ширхэг

Шаардлагатай багаж:

Төмөр хөрөөТөмөр хөрөө
Элсэн цаасЭлсэн цаас
10

The build in 3D

FreeCAD model of this build, not of the patent: the pail, tube and flange cut away to show the loose weighted plunger standing on the bottom inside the tube, the cap with its valve, and the handle.
Дизайны файлBLENDCC0 - Free
11

Dash and make butter

Let the heavy cream stand until it reaches about 15 °C, checked with the thermometer. Pour in 2 litres. Work the tube up and down over the plunger; bubbles should burst from under the flange on each down-stroke. 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.
Алхам 11 - Image 1

Энэ алхмын материал:

Өтгөн цөцгийӨтгөн цөцгий2000 мл
Бүдүүн далайн давсБүдүүн далайн давс1 ширхэг
УсУс1 ширхэг

Шаардлагатай багаж:

Дотор нь үлдээдэг мэдрэгчтэй термометрДотор нь үлдээдэг мэдрэгчтэй термометр
Секунд хэмжигчСекунд хэмжигч
Дижитал гал тогооны жинДижитал гал тогооны жин
Зэвэрдэггүй ган том хольц аягаЗэвэрдэггүй ган том хольц аяга
12

No bubbles, a plunger that floats

Air-pump tube dasher troubleshooting.

Flow

Loading...
13

History and honest limits

**William M. Wright** of Pittsburgh, Allegheny County, Pennsylvania, received US 6,711, dated 11 September 1849. The plunger was to be "specifically heavier than cream," or wood weighted with a plug of metal; the tub could be any pail, "particularly, if it be deep in comparison with its width." He claimed the combination of the loose plunger with the tubular dasher. **Honest limits.** A pipe and printed parts stand in for his tinned sheet-iron tube; use a food-grade pipe. FDM prints hold food in their layer lines, so wash well and replace when worn. Your times and weights are the result.

Материал

10

Шаардлагатай багаж

8

Загварын файлууд

4

CC0 Нийтийн домэйн

Энэ загвар CC0 дор гаргагдсан. Та зөвшөөрөл авахгүйгээр хуулах, өөрчлөх, түгээх, ашиглах боломжтой.

Загвараар дамжуулан бүтээгдэхүүн худалдаж авч Бүтээгчийг дэмжээрэй Бүтээгчийн шимтгэл Борлуулагчаар тогтоосон, эсвэл энэ загварын шинэ хувилбар үүсгэж орлогоо хуваахын тулд өөрийн загварт холбоос болгон оруулна уу.

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