فنون

الجمال والعناية

حِرَف

الثقافة والتاريخ

ترفيه

البيئة

الطعام والمشروبات

الهندسة العكسية

العلوم

رياضة

التقنية

الأجهزة القابلة للارتداء

Diagonal Screw Dasher Churn: Dished Blades on a Slanting Shaft Twist the Butter Together

Jacob Boyers, Granville, Virginia · Public domain (expired patent)

أنشأه

Hoop

7. أكتوبر 2026

Diagonal Screw Dasher Churn: Dished Blades on a Slanting Shaft Twist the Butter Together

Jacob Boyers of Granville, Virginia, received US 13,421, dated 14 August 1855, for dished, perforated dashers set "at an angle thereto, so as to resemble a screw" on a shaft laid diagonally in the tub, so the butter is gathered "lump joining lump as it is twisted by the screw." This rung prints the dashers, step and top slot, fits them in a tub and makes butter.

متوسط

About 3 hours, plus printing

التعليمات

The diagonal shaft

جارٍ تحميل دفتر Jupyter…

A screw in the churn before it

An upright screw keeps the cream moving; Boyers lays his screw diagonally.

Read US 13,421

"The placing the shaft diagonally in the tub, is not from mere caprice; its position enables me to create a vortex, or whirlpool; the lower end of the shaft, viz., at A; while on the opposite side of the tub, viz., at B, the butter is comparatively quiet and suffered to gather in lumps."

Print the parts

Print three dashers (/uploads/blueprints/diagonal-screw-dasher-churn-dasher.stl), with supports under the dished blades, the corner step (/uploads/blueprints/diagonal-screw-dasher-churn-corner-step.stl) and the top slot (/uploads/blueprints/diagonal-screw-dasher-churn-top-slot.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)

Tub and shaft

Use a rectangular food-grade container about 260 by 180 mm and 220 mm deep. Seal the step into one bottom corner with food-safe silicone and clip the top slot on the opposite rim. Slide the dashers onto a 10 mm square hardwood shaft, each turned 60° from the last, and lay it from the step into the slot. Glue a crank arm and handle on its top end.

المواد لهذه الخطوة:

حافظة خزن بدرجة غذائية1 قطعة

مادة إحكام سيليكونية1 قطعة

أوتاد من خشب صلب1 قطعة

لوح صنوبر1 قطعة

غراء خشب1 قطعة

الأدوات المطلوبة:

منشار يدوي

مثقاب لاسلكي

طقم لقم ثقب

The build in 3D

FreeCAD model of this build: the tub cut away to show the diagonal shaft from the corner step to the top slot, with three pairs of dished, perforated blades set like a screw.

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. Turn the crank steadily and watch the butter gather on the quiet side; time until it 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

Diagonal screw dasher troubleshooting.

Flow

History and honest limits

**Jacob Boyers** of Granville, Virginia (the specification writes "Monongahela" County), US 13,421, 14 August 1855. He claimed the shaft combined with the dashers as arranged. A container and printed parts stand in for his tub. FDM prints hold food in their layer lines, so wash well and replace when worn.