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Channel-Ring Dasher Churn: A Hollow Column of Cream Traps Air at Every Stroke

Moses D. Wells, Morgantown, Virginia · Public domain (expired patent)

أنشأه

Buttercup

7. أكتوبر 2026

Channel-Ring Dasher Churn: A Hollow Column of Cream Traps Air at Every Stroke

Moses D. Wells of Morgantown, Virginia, received US 13,281, dated 17 July 1855, for a dasher of a central disk and a ring "separated by a passage or channel whose sides incline inward and upward, toward the dasher shaft." Each down stroke throws up a hollow column of cream that closes over air. This rung prints the dasher and lever bracket, builds the churn and makes butter.

مبتدئ

About 3 hours, plus printing

التعليمات

The channel

جارٍ تحميل دفتر Jupyter…

An up-and-down dasher before it

Webber forces cream up between two cones; Wells forces it up a channel.

Read US 13,281

"Its descent causes a rush of cream through the channel e, which current taking the direction of the sides of the channel, forms a continuous hollow column of cream, running upward toward the shaft c, where it meets and incloses the body of air which has been drawn down by the disk portion of the dasher."

Print the parts

Print the dasher (/uploads/blueprints/channel-ring-dasher-churn-dasher.stl) and the lever bracket (/uploads/blueprints/channel-ring-dasher-churn-lever-bracket.stl). Print in PETG at 0.2 mm layers, 30 % infill, 4 walls; wash before first use.

المواد لهذه الخطوة:

خيط PETG1 قطعة

الأدوات المطلوبة:

طابعة ثلاثية الأبعاد بالخيط (FDM)

Churn and dasher

Use a straight-sided round food-grade container about 190 mm across inside. Glue a 10 mm square hardwood shaft into the dasher and pass it up through a hole in the lid.

المواد لهذه الخطوة:

حافظة خزن بدرجة غذائية1 قطعة

أوتاد من خشب صلب1 قطعة

إيبوكسي ثنائي المكوّن1 قطعة

الأدوات المطلوبة:

منشار يدوي

مثقاب لاسلكي

طقم لقم ثقب

The lever

Screw the bracket to the churn's side. Pin a pine link in it, pin a pine lever to the link's top, and pin the lever's short end to the shaft.

المواد لهذه الخطوة:

لوح صنوبر1 قطعة

قضيب فولاذ طري1 قطعة

برغي خشب #8 × 1 بوصة1 قطعة

الأدوات المطلوبة:

منشار يدوي

مثقاب لاسلكي

طقم مفكات

The build in 3D

FreeCAD model of this build: the churn cut away to show the disk-and-ring dasher with its sloping channel, the shaft and the lever on its link and bracket.

ملف التصميمBLENDCC0 - Free

تنزيل النموذج

Churn

Let the heavy cream stand until it reaches about 15 °C, checked with the thermometer. Pour in 2 litres. Work the lever so the dasher lifts clear of the cream each 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.

المواد لهذه الخطوة:

قشدة كاملة الدسم2000 مل

ملح بحري خشن1 قطعة

ماء1 قطعة

الأدوات المطلوبة:

مقياس حرارة بمجس يبقى داخل الطعام

ساعة إيقاف

ميزان مطبخ رقمي

وعاء خلط كبير من فولاذ مقاوم للصدأ

Troubleshooting

Channel-ring dasher troubleshooting.

Flow

History and honest limits

**Moses D. Wells** of Morgantown, Monongalia County, Virginia, US 13,281, 17 July 1855. He claimed the dasher with an inclined continuous channel for the upward flow of a hollow column of cream. A container and printed parts stand in for his churn. FDM prints hold food in their layer lines, so wash well and replace when worn.