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Rotating-Receiver Stationary-Break Churn: The Whole Cream Vessel Turns, a Narrow Fixed Break Churns It
Buttercup

Creado por

Buttercup

11. noviembre 2026IE
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Rotating-Receiver Stationary-Break Churn: The Whole Cream Vessel Turns, a Narrow Fixed Break Churns It

Mortimer S. Harsha of Sycamore, Illinois, received US 26,459, dated 13 December 1859, for what he called the "Vertical Rotating and Stationary Break Churn". Instead of a dasher, the whole cream vessel turns on an upright shaft with a pointed foot, driven by a gear and crank below it, while one narrow perforated break, fixed to a removable top, stands still near the vessel's side. The turning cream keeps going like a balance wheel, so little effort keeps it churning. The patent gives no sizes; every size here is ours.
Intermedio
About a day, plus printing

Instrucciones

1

The turning cream against a still break

Cargando el cuaderno de Jupyter…
2

Fixed brakes in turning cream, three months before

Taylor turned a dasher among fixed brakes. Harsha turns the vessel itself against a single fixed break.
3

Read US 26,459

"This is accomplished by said break presenting only a small resisting surface to the moving cream, while the cream being made to rapidly rotate on said vertical or upright shaft only against said break dash, becomes, along with its receiver, a receptacle of the power applied, similar to that of a balance wheel, and so by its own accumulative force, when power is once applied, puts it in motion"
4

Print the gear wheel G

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

Print the pinion

Spur pinion, 12 teeth, module 2, with a long hub bored 16.4 mm and a cross hole for a pin. PETG, 0.2 mm layers, 40 % infill, 4 walls.
Archivo de DisenoSTLCC0 - Free
6

Print the socket

A cup 50 mm across and 22 mm tall with a cone recess for the shaft's point. PETG, 0.2 mm layers, 40 % infill, 4 walls.
Archivo de DisenoSTLCC0 - Free
7

Print the flange

A disc 200 mm across and 15 mm thick bored 16.6 mm, to carry the receiver. Print with 100 % infill. PETG, 0.2 mm layers, 40 % infill, 4 walls.
Archivo de DisenoSTLCC0 - Free
8

Base E, brace H, posts F and top D

Make a hardwood base 600 x 600 mm and screw the socket in its middle. Screw a brace H to it, an upright 30 x 40 mm with an arm reaching over the socket, bored 16.6 mm 25 to 55 mm up as the shaft's journal box. Tenon two posts 30 x 50 mm, 515 mm tall, into the base 490 mm apart, and make a top board 550 x 160 x 20 mm with mortises to drop onto their tenons so it lifts off. Set two chairs 44 x 30 mm, 124 mm tall, for the gear wheel's shaft.

Materiales para este paso:

Tabla de madera duraTabla de madera dura3 piezas
Cola de carpinteroCola de carpintero1 pieza
Tornillos para maderaTornillos para madera20 piezas
Filamento PETGFilamento PETG1 pieza

Herramientas necesarias:

Impresora 3D de filamento (FDM)Impresora 3D de filamento (FDM)
Sierra de mesaSierra de mesa
Sierra de calarSierra de calar
Formón de mortajaFormón de mortaja
Mazo de maderaMazo de madera
Taladro inalámbricoTaladro inalámbrico
Juego de brocasJuego de brocas
SargentoSargento
Cinta métricaCinta métrica
9

Shaft C, receiver A and gearing

File one end of a 16 mm stainless shaft 170 mm long to a point. Pin the pinion and the flange on it, stand its point in the socket through the journal box, and bolt the stockpot's bottom to the flange with stainless screws sealed with silicone. Fit the crown wheel on a 12 mm stainless shaft through the chairs, meshing under the pinion, with a crank and handle on its end.

Materiales para este paso:

Varilla de acero inoxidableVarilla de acero inoxidable2 piezas
Olla altaOlla alta1 pieza
Tornillos de máquinaTornillos de máquina4 piezas
Tuerca autoblocante con inserto de nailonTuerca autoblocante con inserto de nailon4 piezas
Arandela planaArandela plana8 piezas
Sellador de siliconaSellador de silicona1 pieza
Espigas de madera duraEspigas de madera dura1 pieza

Herramientas necesarias:

Sierra para metalesSierra para metales
Limas (lima de mano)Limas (lima de mano)
Taladro inalámbricoTaladro inalámbrico
Juego de brocasJuego de brocas
Llave inglesa ajustableLlave inglesa ajustable
Juego de destornilladoresJuego de destornilladores
10

Break dash B

Cut a hardwood break 60 x 15 mm long enough to reach from the top board to 25 mm above the receiver's floor, bore ten 16 mm holes through it, and fix it by a tenon through the top board so it hangs 30 mm in from the receiver's side.

Materiales para este paso:

Tabla de madera duraTabla de madera dura1 pieza
Cola de carpinteroCola de carpintero1 pieza

Herramientas necesarias:

Sierra de mesaSierra de mesa
Juego de brocas de palaJuego de brocas de pala
Taladro inalámbricoTaladro inalámbrico
Formón de mortajaFormón de mortaja
Mazo de maderaMazo de madera
Papel de lijaPapel de lija
11

The build in 3D

FreeCAD model of this build, the receiver cut through the middle: the base with its socket, brace and posts, the shaft with pinion and flange, the crown wheel and crank, the turning receiver and the fixed perforated break hanging from the top.
Archivo de DisenoBLENDCC0 - Free
12

Churn

Lift the top off, pour about 9 litres of heavy cream at about 15 °C into the receiver, checked with the thermometer, and put the top back. Turn the crank steadily, timing it: once the cream is moving it keeps going with little effort. When the butter comes, lift the top and break out, take out the butter, drain the buttermilk, wash the butter in cold water until it runs clear, salt and weigh it.

Materiales para este paso:

Crema de leche espesaCrema de leche espesa9 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
13

Troubleshooting

Rotating-receiver churn troubleshooting.

Flow

Loading...
14

History and honest limits

**Mortimer S. Harsha** of Sycamore, DeKalb County, Illinois, assignor to himself, Rufus S. Sanborn and H. B. Jones, US 26,459, 13 December 1859, "Churn". He claimed: "An entirely stationary break dash in combination with a cream receiver, made to rotate on a vertical or upright shaft". His break is made "of such size as the relative size of the machine requires, and of any common form or shape"; the patent gives no sizes, and every size here is ours. His receiver was tin, zinc or wood; ours is a stainless stockpot.

Materiales

14

Herramientas requeridas

19

Archivos de diseño

5

CC0 Dominio público

Este Blueprint se publica bajo CC0. Eres libre de copiar, modificar, distribuir y usar este trabajo para cualquier propósito, sin pedir permiso.

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