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Valveless Cone Air Dasher: A Hollow Cone and Four Tubes, Nothing to Wear Out
Gridley wanted to force air under the cream "without the employment of valves or other movable parts in the dasher, which are liable to get out of order," and without a hollow handle.
Josiah A. Gridley of Southampton, Massachusetts, received US 6,411, dated 1 May 1849, for a churn-dasher of a straight round stick with a hollow cone on its lower end. Near the apex are four holes, more or less, through the cone; from them small tubes run down the outside to near its base, ending in open ends above the base. Forced into the cream, the cone traps air, which is drawn out through the tubes and disperses through the cream.
This rung works out the air the cone holds, then prints the cone with its tubes in one piece, fits it to a stick, and makes butter in a jar.
Débutant
About 1 hour, plus printing
Consignes
1
1
Air in the cone
Air in the cone
Chargement du notebook Jupyter…
2
2
A hollow dash that carries air down before it
A hollow dash that carries air down before it
The embedded blueprint traps air in a hollow cylinder and squeezes it out over a fixed block. Gridley's cone needs no block, spindle or valve.
3
3
Read US 6,411
Read US 6,411
"When this dasher is forced into the cream it incloses and compresses a quantity of air; and as the cream rushes up into it the air is drawn out through the tubes (a partial vacuum being created at their openings above the cone) and disperses through the cream, and agitates it as other air dashers. It is obvious that other figures than a cone would answer, and would be substantially the same thing."
4
4
Print the cone
Print the cone
Print the cone base-down in one piece (/uploads/blueprints/valveless-cone-air-dasher-cone.stl): a hollow cone 90 mm across with four tubes from holes near its apex down the outside to just above its base, and a socket for the stick. Blow through each tube to check it is clear. Print in PETG at 0.2 mm layers, 30 % infill, 4 walls; wash before first use.
Matériaux pour cette étape :
Filament PETG1 pièceOutils nécessaires :
Imprimante 3D à filament (FDM)5
5
Fit the stick
Fit the stick
Glue a 12 mm hardwood dowel, as long as the jar is deep plus 150 mm, into the cone's socket.
Matériaux pour cette étape :
Goujons de bois dur1 pièce
Colle à bois1 pièceOutils nécessaires :
Scie égoïne
Papier abrasif6
6
The churn
The churn
Take a tall wide jar about 170 mm across and drill its lid at the centre for the stick.
Matériaux pour cette étape :
Bocal en verre1 pièceOutils nécessaires :
Perceuse sans fil
Jeu de forets7
7
The build in 3D
The build in 3D
FreeCAD model of this build, not of the patent: the jar cut away to show the hollow cone on its stick with the four tubes from near its apex to just above its base.
8
8
Dash and make butter
Dash and make butter
Let the heavy cream stand until it reaches about 15 °C, checked with the thermometer. Pour in 1 litre. Work the stick up and down like a common dasher, lifting the cone clear of the cream each time so it fills with air; watch for bubbles from the tubes. 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.
Matériaux pour cette étape :
Crème liquide entière1000 ml
Gros sel marin1 pièce
Eau1 pièceOutils nécessaires :
Thermomètre à sonde à demeure
Chronomètre
Balance de cuisine numérique
Grand cul-de-poule en acier inoxydable9
9
No bubbles, blocked tubes
No bubbles, blocked tubes
Valveless cone air dasher troubleshooting.
Flow
Loading...
10
10
History and honest limits
History and honest limits
**Josiah A. Gridley** of Southampton, Hampshire County, Massachusetts, received US 6,411, dated 1 May 1849. His cone was "of metal or other suitable material" and his handle "a straight round stick." He claimed the dasher made concave, with openings around it for dispersing air through the cream, without valves.
**Honest limits.** A printed cone stands in for his metal one, and a jar for his churn. The notebook's figures are estimates. FDM prints hold food in their layer lines, so wash well and replace when worn. Your times and weights are the result.
Matériaux
7- 1 pièceEspace réservé
- 1 pièceEspace réservé
- 1 pièceEspace réservé
- 1 pièceEspace réservé
- 1000 mlEspace réservé
- 1 pièceEspace réservé
- 1 pièceEspace réservé
Outils requis
9- Espace réservé
- Espace réservé
- Espace réservé
- 1 vendor sell this, none ship to you yetEspace réservé
- Espace réservé
- Espace réservé
- Espace réservé
- Espace réservé
- Espace réservé
Fichiers de conception
1Blueprints liés
Ces blueprints partagent des connaissances — techniques, matériaux ou principes
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Churning Butter from Cream — The 5,000-Year-Old Fat Separation
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ARTISANAT
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CC0 Domaine public
Ce blueprint est publié sous CC0. Vous êtes libre de copier, modifier, distribuer et utiliser ce travail pour tout usage, sans demander la permission.
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