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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
Istruzioni
1
1
Held from above
Held from above
Caricamento del notebook Jupyter…
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2
A crank-turned upright dasher, one week before
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.
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3
Read US 27,927
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."
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4
Print the driving wheel E
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.
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5
Print the pinion M
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.
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6
Lid B and C, brakes O
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.
Materiali per questo passaggio:
Secchio da 20 litri1 pezzo
Tavola di legno duro2 pezzi
Viti da legno6 pezzi
Sigillante siliconico1 pezzoStrumenti necessari:
Seghetto alternativo
Sega circolare da banco
Set di punte a lancia
Trapano a batteria
Serie di punte da trapano
Set di cacciaviti
Metro a nastro7
7
Standard D, journal box and cap G
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.
Materiali per questo passaggio:
Tavola di legno duro1 pezzo
Colla da legno1 pezzo
Cerniera a libro per mobili1 pezzo
Gancio e occhiello1 pezzoViti da legno4 pezziStrumenti necessari:
Sega circolare da banco
Serie di scalpelli da legno
Morsetto a barraTrapano a batteriaSerie di punte da trapanoSet di punte a lanciaSet di cacciaviti8
8
Dasher J with wings N and collars K and L
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.
Materiali per questo passaggio:
Tasselli di legno duro2 pezziTavola di legno duro1 pezzo
Barra di acciaio inossidabile1 pezzoColla da legno1 pezzo
Blocco di legno duro1 pezzo
Shaft Collar1 pezzo
Filamento PETG1 pezzoStrumenti necessari:
Stampante 3D a filamento (FDM)Sega circolare da bancoSet di punte a lanciaTrapano a batteriaSerie di punte da trapano
Seghetto per metalli
Lime (lima a mano)
Carta abrasiva9
9
Driving wheel E and crank
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.
Materiali per questo passaggio:
Barra di acciaio inossidabile1 pezzoTavola di legno duro1 pezzoTasselli di legno duro1 pezzoColla da legno1 pezzoShaft Collar1 pezzo
Coppiglia1 pezzoStrumenti necessari:
Seghetto per metalliLime (lima a mano)Trapano a batteriaSerie di punte da trapano
Morsa da banco10
10
The build in 3D
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.
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11
Churn
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.
Materiali per questo passaggio:
Panna da montare8 l
Sale marino grosso1 pezzo
Acqua1 pezzoStrumenti necessari:
Termometro a sonda permanente
Cronometro
Bilancia digitale da cucina
Grande ciotola da impasto in acciaio inossidabile12
12
Troubleshooting
Troubleshooting
Hung-dasher churn troubleshooting.
Flow
Loading...
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13
History and honest limits
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.
Materiali
16- 1 pezzoSegnaposto
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Strumenti richiesti
18- 1 vendor sell this, none ship to you yetSegnaposto
- 1 vendor sell this, none ship to you yetSegnaposto
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- 1 vendor sell this, none ship to you yetSegnaposto
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- 1 vendor sell this, none ship to you yetSegnaposto
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3Questo progetto realizza
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