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Rolling-Rocker Churn: A Box on Pegged Rockers Rolls Along Notched Ways So Its Fulcrum Follows the Cream
Daniel Deshon 2d of Somerset, Pennsylvania, received US 27,701, dated 3 April 1860, for a churn. A box of cream stands on curved rockers whose pegs sit in notches along the ways of a stand. Rocked by a handle, the box tips end to end and the cream runs through racks of rods; as the rockers roll, the point they rest on moves along with the weight, so little force is needed.
The patent gives no sizes; every size here is ours, and so is our reading of where the racks sit.
Intermedio
About 2 days
Instrucciones
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A fulcrum that walks
A fulcrum that walks
Cargando el cuaderno de Jupyter…
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Cream rushing end to end through pins, one month before
Cream rushing end to end through pins, one month before
Newbrough's barrel tips on a fixed pivot. Deshon's box rolls, so its pivot follows the cream.
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Read US 27,701
Read US 27,701
"... this is done without contending but very little with the weight from the fact that the fulcrum at the bottom of the rockers (b) changes from one end to the other in accordance to the change of the weight inside of the vessel, always keeping in the center of the weight; consequently balancing the weight in its motion and saving most of the labor required to churn."
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Vessel a and lid d
Vessel a and lid d
From 20 mm hardwood board make a box 600 x 250 mm inside and 290 deep; glue and screw it and seal the inside joints with silicone sealant. Cut a 150 mm opening across the middle of the top and a lid to fit it, with a hardwood block handle e.
Materiales para este paso:
Tabla de madera dura3 piezas
Cola de carpintero1 pieza
Tornillos para madera40 piezas
Sellador de silicona1 piezaHerramientas necesarias:
Sierra de mesa
Sierra de calar
Taladro inalámbrico
Juego de brocas
Sargento
Juego de destornilladores
Cinta métrica5
5
Racks i
Racks i
Make two racks, each two hardwood side bars 24 x 20 mm, 355 long, with nine 10 mm stainless rods across between them. Stand them in the vessel leaning together, their feet on the floor 30 mm from the ends, meeting in the middle 240 mm above the floor.
Materiales para este paso:
Tabla de madera dura1 pieza
Varilla de acero inoxidable2 piezasCola de carpintero1 piezaHerramientas necesarias:
Sierra de mesa
Sierra para metales
Limas (lima de mano)Taladro inalámbricoJuego de brocas6
6
Rockers b with projections f, and handle c
Rockers b with projections f, and handle c
Draw an arc of 400 mm radius with the compass on two 20 mm hardwood boards and cut each rocker with that arc as its bottom, 48 degrees of arc (325 mm), rising to the box's top; leave one 140 mm taller and cut a hand-hole in it as the handle c. Bore seven 12 mm holes along each arc, 6 degrees apart, and glue in dowel pegs standing 8 mm out as the projections f. Bolt a rocker on each long side of the vessel, centred, the arc's lowest point 40 mm below the vessel's bottom.
Materiales para este paso:
Tabla de madera dura2 piezas
Espigas de madera dura1 piezaCola de carpintero1 pieza
Tornillo de carruaje4 piezas
Tuerca mariposa4 piezasHerramientas necesarias:
BrújulaSierra de calar
Transportador de ángulosTaladro inalámbricoJuego de brocas
Juego de brocas de pala
Papel de lija
Llave inglesa ajustable7
7
Pedestal h with ways and notches g
Pedestal h with ways and notches g
Cut two hardwood ways 520 x 120 x 30 mm and set them on edge under the rockers, 290 mm apart inside; join them with two cross boards near the floor. Cut seven notches 14 mm wide and 11 deep in each way's top edge, 41.9 mm apart from the middle, to match the pegs.
Materiales para este paso:
Tabla de madera dura2 piezasCola de carpintero1 piezaTornillos para madera16 piezasHerramientas necesarias:
Sierra de mesa
Juego de formones para maderaTaladro inalámbricoJuego de brocasSargentoJuego de destornilladoresCinta métrica8
8
The build in 3D
The build in 3D
FreeCAD model of this build, tipped 10 degrees and cut through the middle: the vessel with its lid and the two racks leaning together, the rockers with their pegs in the ways' notches, and the pedestal.
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Churn
Churn
Pour about 10 litres of heavy cream at about 15 °C, checked with the thermometer, into the vessel and close the lid. Push and pull the handle c steadily, tipping the vessel up to about 18 degrees each way, timing it. When the butter comes, lift the lid, take out the racks and the butter, tip 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 espesa10 l
Sal marina gruesa1 pieza
Agua1 piezaHerramientas necesarias:
Termómetro de sonda permanente
Cronómetro
Báscula digital de cocina
Bol grande de acero inoxidable10
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Troubleshooting
Troubleshooting
Rolling-rocker churn troubleshooting.
Flow
Loading...
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History and honest limits
History and honest limits
**Daniel Deshon 2d** of Somerset, Pennsylvania, US 27,701, 3 April 1860, "Churn". He claimed the racks, vessel, pedestal and rockers with projections in notched ways, combined. He places the racks only by dotted lines in his figure; our two racks leaning together are our reading of them. Every size here is ours.
Materiales
11- 3 piezasMarcador de posición
- 4 piezasMarcador de posición
- 56 piezasMarcador de posición
- 1 piezaMarcador de posición
- 2 piezasMarcador de posición
- 1 piezaMarcador de posición
- 4 piezasMarcador de posición
- 4 piezasMarcador de posición
- Marcador de posición
- 1 piezaMarcador de posición
- 1 piezaMarcador de posición
Herramientas requeridas
19- 1 vendor sell this, none ship to you yetMarcador de posición
- 1 vendor sell this, none ship to you yetMarcador de posición
- 1 vendor sell this, none ship to you yetMarcador de posición
- Marcador de posición
- Marcador de posición
- Marcador de posición
- 1 vendor sell this, none ship to you yetMarcador de posición
- Marcador de posición
- Marcador de posición
- Marcador de posición
- Marcador de posición
- Marcador de posición
- Marcador de posición
- Marcador de posición
- Marcador de posición
- Marcador de posición
- Marcador de posición
- Marcador de posición
- Marcador de posición
Archivos de diseño
1
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