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Whirl-Cone Splash-Guard Churn: A Whirl Feeds Air to a Cone, a Funnel Keeps the Cream In
Young set out to mingle "a large quantity of air" with the milk and to stop it "splashing out of the churn without interfering with the free action of the dasher."
John Young of West Galway, New York, received US 7,046, dated 22 January 1850, for an atmospheric churn: a geared spindle carrying a flat plate at its foot, an inverted conical vessel open at its top with wings on its rim, inverted channels on the plate leading out from the cone, and a spiral wing up the spindle. A loose inverted funnel on brackets near the top of the tub, with a small disk on the spindle partly closing its hole, returns whatever is thrown up.
This rung looks at the whirl, then prints the cone dasher, spiral wing, funnel and disk, fits them in a bucket, and makes butter.
Intermediate
About 4 hours, plus printing
Instructions
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1
The whirl
The whirl
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2
Air thrown out through channels before it
Air thrown out through channels before it
The embedded blueprint draws air down a hollow stem into radial channels. Young lets the cream's whirl bring the air down into an open cone instead.
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3
Read US 7,046
Read US 7,046
"When the churn is supplied with milk and the dasher is rapidly turned by the application of power to the handle of the crank, the whole mass of milk is put in motion and a whirl is created around the spindle, through this whirl the air descends into the conical vessel D, from which it is discharged centrifugally through the channels g, g, and thus mingled with the milk."
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4
Print the parts
Print the parts
Print the cone dasher in one piece (/uploads/blueprints/whirl-cone-splash-guard-churn-cone-dasher.stl): plate, open cone with rim wings, four inverted channels and a spider to the spindle. Print the spiral wing (/uploads/blueprints/whirl-cone-splash-guard-churn-spiral-wing.stl), the splash funnel (/uploads/blueprints/whirl-cone-splash-guard-churn-splash-funnel.stl), which needs a 200 mm bed, the disk (/uploads/blueprints/whirl-cone-splash-guard-churn-disk.stl) and the crank arm (/uploads/blueprints/whirl-cone-splash-guard-churn-crank-arm.stl). Print in PETG at 0.2 mm layers, 30 % infill, 4 walls; wash before first use.
Materials for this step:
PETG Filament1 pieceTools needed:
FDM 3D Printer5
5
Spindle and dasher
Spindle and dasher
Slide the cone dasher, then the spiral wing, onto a 10 mm square hardwood spindle and glue them. Stand the spindle in a seat drilled in the centre of a food-grade bucket's floor.
Materials for this step:
Hardwood Dowels1 piece
Wood Glue1 piece
20-Liter Bucket1 pieceTools needed:
Cordless Drill
Drill Bit Set
Hand Saw6
6
Funnel, disk and crank
Funnel, disk and crank
Screw three small wooden brackets inside the bucket 70 mm below the rim and set the funnel loosely on them, point down, the spindle through its hole. Glue the disk on the spindle just above the funnel's hole. Pass the spindle through a plywood lid and glue the crank arm and a dowel handle on top.
Materials for this step:
Hardwood Block1 piece
#8 x 1" Wood Screw1 piece
Plywood Sheet1 piece
Wood Glue1 pieceTools needed:
Hand Saw
Cordless Drill
Screwdriver Set7
7
The build in 3D
The build in 3D
FreeCAD model of this build, not of the patent: the bucket cut away to show the plate with its open cone and inverted channels, the spiral wing, the loose funnel near the top and the disk on the spindle.
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8
Spin and make butter
Spin and make butter
Let the heavy cream stand until it reaches about 15 °C, checked with the thermometer. Pour in 3 litres. Crank fast enough to raise a whirl round the spindle; time until the butter comes. Lift the funnel out before pouring off the buttermilk. 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.

Materials for this step:
Heavy Cream3000 ml
Coarse Sea Salt1 piece
Water1 pieceTools needed:
Leave-In Probe Thermometer
Stopwatch
Digital Kitchen Scale
Stainless Steel Mixing Bowl (Large)9
9
No whirl, cream on the lid
No whirl, cream on the lid
Whirl-cone splash-guard churn troubleshooting.
Flow
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10
History and honest limits
History and honest limits
**John Young** of West Galway, Fulton County, New York, received US 7,046, dated 22 January 1850. A pinion on the spindle geared into a wheel on the cover turned by the crank; the cone and channels came off the spindle by buttons or screws for cleaning; filled very full, the wings on the cone's rim kept its mouth open to the air. He claimed the combination of the inverted vessel H and the disk i on the dasher's stem to prevent the cream splashing out at the lid.
**Honest limits.** Our crank turns the spindle directly, without his wheel and pinion, so the whirl may be weaker; printed parts and a bucket 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.
Materials
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Tools Required
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Design Files
1Related Blueprints
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