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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 · Public domain
Buttercup

Yenziwe ngu-

Buttercup

11. uLwezi 2026IE
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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.
Ophakathi
About 2 days

Imiyalelo

1

A fulcrum that walks

Ilayisha incwadi ye-Jupyter…
2

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.
3

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."
4

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.

Izinto zokwakha zalesi sinyathelo:

Ipulangwe Lokhuni OluqinileIpulangwe Lokhuni Oluqinile3 izicucu
Iglu LokhuniIglu Lokhuni1 ucezu
Izikulufu zokhuniIzikulufu zokhuni40 izicucu
Isivalo Se-siliconeIsivalo Se-silicone1 ucezu

Amathuluzi adingekayo:

Isaha letafulaIsaha letafula
Isaha Le-jigsawIsaha Le-jigsaw
Ibhola ElingenantamboIbhola Elingenantambo
Iqoqo Lamakhanda EbholaIqoqo Lamakhanda Ebhola
Isibambo sensikaIsibambo sensika
Isethi yezikulufudrayivaIsethi yezikulufudrayiva
Ithephu LokulinganisaIthephu Lokulinganisa
5

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.

Izinto zokwakha zalesi sinyathelo:

Ipulangwe Lokhuni OluqinileIpulangwe Lokhuni Oluqinile1 ucezu
Insimbi engagqwali eyindukwanaInsimbi engagqwali eyindukwana2 izicucu
Iglu LokhuniIglu Lokhuni1 ucezu

Amathuluzi adingekayo:

Isaha letafulaIsaha letafula
Isaha SensimbiIsaha Sensimbi
Izinsimbi zokuhlikihla (ezesandla)Izinsimbi zokuhlikihla (ezesandla)
Ibhola ElingenantamboIbhola Elingenantambo
Iqoqo Lamakhanda EbholaIqoqo Lamakhanda Ebhola
6

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.

Izinto zokwakha zalesi sinyathelo:

Ipulangwe Lokhuni OluqinileIpulangwe Lokhuni Oluqinile2 izicucu
Izikhonkwane zokhuni oluqinileIzikhonkwane zokhuni oluqinile1 ucezu
Iglu LokhuniIglu Lokhuni1 ucezu
Ibhawoti elinekhanda eliyindilingaIbhawoti elinekhanda eliyindilinga4 izicucu
Inathi yamaphikoInathi yamaphiko4 izicucu

Amathuluzi adingekayo:

IkhompasiIkhompasi
Isaha Le-jigsawIsaha Le-jigsaw
IphrothraktaIphrothrakta
Ibhola ElingenantamboIbhola Elingenantambo
Iqoqo Lamakhanda EbholaIqoqo Lamakhanda Ebhola
Isethi yezingqamuzana ezinjengefosholoIsethi yezingqamuzana ezinjengefosholo
Iphepha LokugayaIphepha Lokugaya
Isipanela esilungisekayoIsipanela esilungisekayo
7

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.

Izinto zokwakha zalesi sinyathelo:

Ipulangwe Lokhuni OluqinileIpulangwe Lokhuni Oluqinile2 izicucu
Iglu LokhuniIglu Lokhuni1 ucezu
Izikulufu zokhuniIzikulufu zokhuni16 izicucu

Amathuluzi adingekayo:

Isaha letafulaIsaha letafula
Isethi yezisebenzi zokhuniIsethi yezisebenzi zokhuni
Ibhola ElingenantamboIbhola Elingenantambo
Iqoqo Lamakhanda EbholaIqoqo Lamakhanda Ebhola
Isibambo sensikaIsibambo sensika
Isethi yezikulufudrayivaIsethi yezikulufudrayiva
Ithephu LokulinganisaIthephu Lokulinganisa
8

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.
Ifayela LomklamoBLENDCC0 - Free
Landa imodeli
9

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.

Izinto zokwakha zalesi sinyathelo:

Ukhilimu ojiyileUkhilimu ojiyile10 l
Usawoti Wolwandle OmkhuluUsawoti Wolwandle Omkhulu1 ucezu
AmanziAmanzi1 ucezu

Amathuluzi adingekayo:

Ithemomitha enenaliti eshiywa ngaphakathiIthemomitha enenaliti eshiywa ngaphakathi
Iwashi Lokumisa IsikhathiIwashi Lokumisa Isikhathi
Isikali Sedijithali SasekhishiniIsikali Sedijithali Sasekhishini
Isitsha esikhulu sokuxuba sensimbi engagqwaliIsitsha esikhulu sokuxuba sensimbi engagqwali
10

Troubleshooting

Rolling-rocker churn troubleshooting.

Flow

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11

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.

Izinto

11

Amathuluzi Adingekayo

19

Amafayela omklamo

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