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Hung-Dasher Churn: The Dasher Hangs in a Long Hinged Journal Box Above the Lid, No Step in the Tub
Jehu Mitchell · Public domain
Buttercup

Creado por

Buttercup

11. noviembre 2026IE
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Hung-Dasher Churn: The Dasher Hangs in a Long Hinged Journal Box Above the Lid, No Step in the Tub

Jehu Mitchell of Aleppo township, Pennsylvania, received US 27,927, dated 17 April 1860, for a churn. The dasher hangs from above in a long journal box on a standard fixed to the lid, with no step or metal bearing in the tub, whose "oxidation ... imparts a bad flavor to the butter". One half of the box is a cap hinged at one side: lift out half the lid, unhook the cap and the dasher comes out with the gearing left in place. The patent gives no sizes; every size here is ours.
Intermedio
About 2 days, plus printing

Instrucciones

1

Held from above

Cargando el cuaderno de Jupyter…
2

A crank-turned upright dasher, one week before

Lynch's shaft stands in a step on the bottom. Mitchell hangs his from above, with nothing in the tub.
3

Read US 27,927

"Suspending the dasher within an elongated hinged journal box in the manner described, combined the following advantages. A rigid bearing is afforded to the dasher so as to prevent any tremulous motion, without the necessity of any metallic step or bearing within the churn, the oxidation of which imparts a bad flavor to the butter."
4

Print the driving wheel E

Crown wheel, 36 teeth on its face, module 2, with a hub; bored 12.4 mm. PETG, 0.2 mm layers, 40 % infill, 4 walls.
Archivo de DisenoSTLCC0 - Free
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5

Print the pinion M

Spur pinion, 12 teeth, module 2, with a hub; bored 12.4 mm. PETG, 0.2 mm layers, 40 % infill, 4 walls.
Archivo de DisenoSTLCC0 - Free
Descargar modelo
6

Lid B and C, brakes O

Cut a hardwood lid 15 mm thick to sit on the bucket's rim and saw it in two across the middle: part C carries the standard, part B lifts out. Cut a 28 mm half-hole in the middle of the cut edge for the shaft and a 30 mm hole in B to look in. Screw three hardwood brakes O, 30 mm deep and 245 tall, to the bucket's side a third of a turn apart, and seal the screw holes outside with silicone.

Materiales para este paso:

Cubo de 20 litrosCubo de 20 litros1 pieza
Tabla de madera duraTabla de madera dura2 piezas
Tornillos para maderaTornillos para madera6 piezas
Sellador de siliconaSellador de silicona1 pieza

Herramientas necesarias:

Sierra de calarSierra de calar
Sierra de mesaSierra de mesa
Juego de brocas de palaJuego de brocas de pala
Taladro inalámbricoTaladro inalámbrico
Juego de brocasJuego de brocas
Juego de destornilladoresJuego de destornilladores
Cinta métricaCinta métrica
7

Standard D, journal box and cap G

Glue up a hardwood standard 60 mm wide and 66 deep, 111 mm tall above the lid, with its back 22 mm rising to 217 mm and bored 12.6 mm across near the top for the wheel's axle. Mortise it into lid part C behind the shaft's hole. Cut a cap G 60 x 30 mm, 111 tall, and bore a 25.2 mm hole down the joint between standard and cap, half in each. Hang the cap on a butt hinge at one side and fit a hook H and eye I on the other.

Materiales para este paso:

Tabla de madera duraTabla de madera dura1 pieza
Cola de carpinteroCola de carpintero1 pieza
Bisagra de libro para muebleBisagra de libro para mueble1 pieza
Corchete (macho y hembra)Corchete (macho y hembra)1 pieza
Tornillos para maderaTornillos para madera4 piezas

Herramientas necesarias:

Sierra de mesaSierra de mesa
Juego de formones para maderaJuego de formones para madera
SargentoSargento
Taladro inalámbricoTaladro inalámbrico
Juego de brocasJuego de brocas
Juego de brocas de palaJuego de brocas de pala
Juego de destornilladoresJuego de destornilladores
8

Dasher J with wings N and collars K and L

Cut a 25 mm hardwood dowel 485 mm long and glue a 12 mm stainless spindle into its top, standing 56 mm out. Glue two hardwood wings 200 x 60 x 20 mm across it, 20 and 140 mm above its foot, each bored with two 24 mm holes. Fit a hardwood collar L 44 mm across just below the lid, and a collar K 40 mm across on the spindle resting on the box's top. Set the shaft in the box, close the cap, and key the pinion M on the spindle above K.

Materiales para este paso:

Espigas de madera duraEspigas de madera dura2 piezas
Tabla de madera duraTabla de madera dura1 pieza
Varilla de acero inoxidableVarilla de acero inoxidable1 pieza
Cola de carpinteroCola de carpintero1 pieza
Bloque de madera duraBloque de madera dura1 pieza
Shaft CollarShaft Collar1 pieza
Filamento PETGFilamento PETG1 pieza

Herramientas necesarias:

Impresora 3D de filamento (FDM)Impresora 3D de filamento (FDM)
Sierra de mesaSierra de mesa
Juego de brocas de palaJuego de brocas de pala
Taladro inalámbricoTaladro inalámbrico
Juego de brocasJuego de brocas
Sierra para metalesSierra para metales
Limas (lima de mano)Limas (lima de mano)
Papel de lijaPapel de lija
9

Driving wheel E and crank

Pass a 12 mm stainless axle through the standard's back, fit the wheel E on it meshing the pinion, and a hardwood crank with a dowel handle on the other end; hold it with a collar and split pin.

Materiales para este paso:

Varilla de acero inoxidableVarilla de acero inoxidable1 pieza
Tabla de madera duraTabla de madera dura1 pieza
Espigas de madera duraEspigas de madera dura1 pieza
Cola de carpinteroCola de carpintero1 pieza
Shaft CollarShaft Collar1 pieza
Pasador de aletasPasador de aletas1 pieza

Herramientas necesarias:

Sierra para metalesSierra para metales
Limas (lima de mano)Limas (lima de mano)
Taladro inalámbricoTaladro inalámbrico
Juego de brocasJuego de brocas
Tornillo de bancoTornillo de banco
10

The build in 3D

FreeCAD model of this build, the bucket cut open: the dasher J with its two wings hanging from the journal box, the brakes O, the lid, the standard D with its hinged cap G, hook and eye, and the wheel E with pinion M.
Archivo de DisenoBLENDCC0 - Free
Descargar modelo
11

Churn

Pour about 8 litres of heavy cream at about 15 °C, checked with the thermometer, into the bucket, set the lid and dasher in place, and turn the crank steadily, timing it. To look at the butter, lift out lid part B. When the butter comes, lift part B out, unhook the cap and take the dasher out, take out the butter, pour the buttermilk into a bowl, wash the butter in cold water until it runs clear, salt and weigh it.

Materiales para este paso:

Crema de leche espesaCrema de leche espesa8 l
Sal marina gruesaSal marina gruesa1 pieza
AguaAgua1 pieza

Herramientas necesarias:

Termómetro de sonda permanenteTermómetro de sonda permanente
CronómetroCronómetro
Báscula digital de cocinaBáscula digital de cocina
Bol grande de acero inoxidableBol grande de acero inoxidable
12

Troubleshooting

Hung-dasher churn troubleshooting.

Flow

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13

History and honest limits

**Jehu Mitchell** of Aleppo township, Greene County, Pennsylvania, US 27,927, 17 April 1860, "Churn". He did not claim a churn without a bottom step nor a hinged bearing alone, but the gearing, standard, hinged cap, dasher and collar together. His journal box runs higher; ours stops below the crown wheel. His wings and brakes are "of common construction"; our two wings and three brakes, and every size, are ours.

Materiales

16

Herramientas requeridas

18

Archivos de diseño

3

Este plano hace

Thumbnail
Marcador

Mantequilla

Free

198
0
1
Thumbnail
Marcador

Suero de mantequilla

Free

72
0

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