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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

Imeundwa na

Buttercup

11. Novemba 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.
Kati
About 2 days

Maagizo

1

A fulcrum that walks

Inapakia daftari la 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.

Vifaa kwa hatua hii:

Ubao wa Mti MgumuUbao wa Mti Mgumu3 vipande
Gundi ya MbaoGundi ya Mbao1 kipande
Parafujo za mbaoParafujo za mbao40 vipande
Kizibo cha SilikoniKizibo cha Silikoni1 kipande

Zana zinazohitajika:

Msumeno wa mezaMsumeno wa meza
Msumeno wa KupindaMsumeno wa Kupinda
Kekee cha BetriKekee cha Betri
Seti ya vichimbuziSeti ya vichimbuzi
Kibano cha upauKibano cha upau
Seti ya bisibisiSeti ya bisibisi
Tepi ya kupimiaTepi ya kupimia
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.

Vifaa kwa hatua hii:

Ubao wa Mti MgumuUbao wa Mti Mgumu1 kipande
Fimbo ya chuma cha puaFimbo ya chuma cha pua2 vipande
Gundi ya MbaoGundi ya Mbao1 kipande

Zana zinazohitajika:

Msumeno wa mezaMsumeno wa meza
Msumeno wa chumaMsumeno wa chuma
Tupa (Tupa ya Mkono)Tupa (Tupa ya Mkono)
Kekee cha BetriKekee cha Betri
Seti ya vichimbuziSeti ya vichimbuzi
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.

Vifaa kwa hatua hii:

Ubao wa Mti MgumuUbao wa Mti Mgumu2 vipande
Vijiti vya mbao ngumuVijiti vya mbao ngumu1 kipande
Gundi ya MbaoGundi ya Mbao1 kipande
Bolti ya kichwa cha duaraBolti ya kichwa cha duara4 vipande
Nati ya mabawaNati ya mabawa4 vipande

Zana zinazohitajika:

DiraDira
Msumeno wa KupindaMsumeno wa Kupinda
Kipima-pembeKipima-pembe
Kekee cha BetriKekee cha Betri
Seti ya vichimbuziSeti ya vichimbuzi
Seti ya vichwa bapa vya kutoboaSeti ya vichwa bapa vya kutoboa
Sandarusi (karatasi ya kusugua)Sandarusi (karatasi ya kusugua)
Spana inayoweza kurekebishwaSpana inayoweza kurekebishwa
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.

Vifaa kwa hatua hii:

Ubao wa Mti MgumuUbao wa Mti Mgumu2 vipande
Gundi ya MbaoGundi ya Mbao1 kipande
Parafujo za mbaoParafujo za mbao16 vipande

Zana zinazohitajika:

Msumeno wa mezaMsumeno wa meza
Seti ya patasi za mtiSeti ya patasi za mti
Kekee cha BetriKekee cha Betri
Seti ya vichimbuziSeti ya vichimbuzi
Kibano cha upauKibano cha upau
Seti ya bisibisiSeti ya bisibisi
Tepi ya kupimiaTepi ya kupimia
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.
Faili ya UsanifuBLENDCC0 - Free
Pakua modeli
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.

Vifaa kwa hatua hii:

Malai nzitoMalai nzito10 l
Chumvi ya Bahari MbichiChumvi ya Bahari Mbichi1 kipande
MajiMaji1 kipande

Zana zinazohitajika:

Kipima joto chenye kijiti kinachobaki ndaniKipima joto chenye kijiti kinachobaki ndani
Saa ya kupima mudaSaa ya kupima muda
Mizani ya dijitali ya jikoniMizani ya dijitali ya jikoni
Bakuli kubwa la kuchanganyia la chuma cha puaBakuli kubwa la kuchanganyia la chuma cha pua
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.

Vifaa

11

Zana Zinazohitajika

19

Faili za muundo

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Blueprint zinazohusiana

Blueprint hizi zinashiriki maarifa — mbinu, vifaa au kanuni

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