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Sliding-Strip Cylinder Dash Churn: Strips on the Slats Open the Gaps One Way and Close Them the Other
Daniel K. France · Public domain
Buttercup

Imeundwa na

Buttercup

10. Novemba 2026IE
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Sliding-Strip Cylinder Dash Churn: Strips on the Slats Open the Gaps One Way and Close Them the Other

Daniel K. France of Congress, Ohio, received US 25,404, dated 13 September 1859, for a cylindrical churn-dash. Two crosses of curved arms carry four groups of three slats, each slat half by one inch. On each group a metal strip with a slot down its middle is held by screws in short slots, so it slides when the dash changes direction and opens or closes the spaces between the slats. Turned one way the dash churns; reversed, it gathers the butter into a corner. Two cog wheels at three to one drive it. France gives one size, the slats; every other size here is ours.
Kati
About 2 days, plus printing

Maagizo

1

France's slats, and the wheels' three to one

Inapakia daftari la Jupyter…
2

A turning dasher on crossed arms in a box, before it

That dasher's boards were fixed. France's slats carry strips that open and close the gaps with the turning.
3

Read US 25,404

"The motion of the dash to be to the left in the direction of the curve of the arms while churning, thereby producing the greatest amount of friction in the cream. When butter is produced the motion of the dash is reversed and the butter gathered in the lower left corner of the churn by the reversed action thereon of the dash and self adjusting slide."
4

Print the large cog wheel

The 48-tooth spur wheel (module 3) with a hub, bored 20.4 mm, for the crank's stud. PETG, 0.2 mm layers, 40 % infill, 4 walls.
Faili ya UsanifuSTLCC0 - Free
Pakua modeli
5

Print the small cog wheel

The 16-tooth spur pinion (module 3) with a hub, bored 20.4 mm, for the dash's shaft. PETG, 0.2 mm layers, 40 % infill, 4 walls.
Faili ya UsanifuSTLCC0 - Free
Pakua modeli
6

Box with legs and lid

From 20 mm hardwood cut a bottom 440 x 340 mm, two sides 440 x 300 mm, two ends 300 x 300 mm and a lid 440 x 340 mm. Bore each end 20.8 mm through its middle, 150 mm above the floor, for the shaft. Glue and screw the ends between the sides and the box onto the bottom, and screw four legs of 70 mm timber, 350 mm long, under it. Fill the box with water overnight so it swells tight, then empty it.

Vifaa kwa hatua hii:

Ubao wa Mti MgumuUbao wa Mti Mgumu3 vipande
Mbao laini za 70x70 mmMbao laini za 70x70 mm1 kipande
Gundi ya MbaoGundi ya Mbao1 kipande
Parafujo za mbaoParafujo za mbao30 vipande

Zana zinazohitajika:

Msumeno wa mezaMsumeno wa meza
Msumeno wa mkonoMsumeno wa mkono
Kekee cha BetriKekee cha Betri
Seti ya vichwa bapa vya kutoboaSeti ya vichwa bapa vya kutoboa
Kibano cha upauKibano cha upau
Kipima pembe cha nyuzi tisiniKipima pembe cha nyuzi tisini
Tepi ya kupimiaTepi ya kupimia
MajiMaji
7

Dash: arms, hubs and slats

Cut eight curved arms from 22 mm hardwood with the jigsaw, each 18 mm wide, sweeping 30 degrees from a 20 mm hub radius out to 112 mm. Glue four into a 56 mm hardwood hub to make a cross, twice, all curving the same way, and bore the hubs 20.4 mm. Cut twelve slats 12.7 x 25.4 mm, 340 mm long, and screw them to the arms' ends in groups of three, 9 mm apart, flat side out, so their faces are 125 mm from the middle.

Vifaa kwa hatua hii:

Ubao wa Mti MgumuUbao wa Mti Mgumu1 kipande
Gundi ya MbaoGundi ya Mbao1 kipande
Parafujo za mbaoParafujo za mbao24 vipande

Zana zinazohitajika:

Msumeno wa KupindaMsumeno wa Kupinda
Msumeno wa mezaMsumeno wa meza
Kekee cha BetriKekee cha Betri
Seti ya vichwa bapa vya kutoboaSeti ya vichwa bapa vya kutoboa
Seti ya vichimbuziSeti ya vichimbuzi
Tepi ya kupimiaTepi ya kupimia
8

Strips B with slots C and screws D

Cut four strips of 0.8 mm stainless sheet, 324 mm long and as wide as a group of slats (94 mm). Cut a slot C 9 mm wide along the middle of each, stopping 30 mm from the ends, and a short slot across each end. Lay each strip on its group's outer face and fix it with an M4 screw through each end slot into the arm's end, just loose enough to slide sideways. Turned one way, the cream pushes each strip so its slot lies over the slats; the other way, over a space.

Vifaa kwa hatua hii:

Bati la chuma cha puaBati la chuma cha pua1 kipande
Skrubu za mashineSkrubu za mashine8 vipande
Washa bapaWasha bapa8 vipande

Zana zinazohitajika:

Mkasi wa batiMkasi wa bati
Tupa (Tupa ya Mkono)Tupa (Tupa ya Mkono)
Kekee cha BetriKekee cha Betri
Seti ya vichimbuziSeti ya vichimbuzi
Seti ya bisibisiSeti ya bisibisi
9

Shaft, cog wheels and crank

Pass a 20 mm stainless shaft through one end of the box, the two hubs and the other end, and pin the hubs to it. On the outside of the geared end, screw a hardwood block 96 mm above the shaft, fix a 20 mm stud in it, and fit the large wheel on the stud with a crank and handle. Pin the small wheel on the shaft's end meshing with it.

Vifaa kwa hatua hii:

Fimbo ya chuma cha puaFimbo ya chuma cha pua2 vipande
Ubao wa Mti MgumuUbao wa Mti Mgumu1 kipande
Vijiti vya mbao ngumuVijiti vya mbao ngumu1 kipande
Mkusanyiko wa bolti za pembe sitaMkusanyiko wa bolti za pembe sita3 vipande
Nati ya Kufungasha yenye NailoniNati ya Kufungasha yenye Nailoni3 vipande
Uzi wa PETGUzi wa PETG1 kipande

Zana zinazohitajika:

Printa ya 3D ya nyuzi (FDM)Printa ya 3D ya nyuzi (FDM)
Msumeno wa chumaMsumeno wa chuma
Kekee cha BetriKekee cha Betri
Seti ya vichimbuziSeti ya vichimbuzi
Spana inayoweza kurekebishwaSpana inayoweza kurekebishwa
10

The build in 3D

FreeCAD model of this build, front side cut away: the dash's two crosses of curved arms, the four groups of slats with their strips, slots and screws, the shaft through the box's ends, and the two cog wheels and crank outside. The dash was turned through 16 angles.
Faili ya UsanifuBLENDCC0 - Free
Pakua modeli
11

Churn, then gather

Pour about 6 litres of heavy cream at about 15 °C into the box, checked with the thermometer, and put the lid on. Turn the crank so the dash turns with the curve of its arms, timing it. When the butter comes, turn the crank the other way so the strips slide over and the dash gathers the butter into a corner. Lift it out, drain the buttermilk, wash the butter in cold water until it runs clear, work in a pinch of salt and weigh it.

Vifaa kwa hatua hii:

Malai nzitoMalai nzito6 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
12

Troubleshooting

Sliding-strip churn troubleshooting.

Flow

Loading...
13

History and honest limits

**Daniel K. France** of Congress, Wayne County, Ohio, US 25,404, 13 September 1859, "Churn-Dash". He claimed the metallic strips B on the convex surface of the slats, held by slots and screws. He disclaimed slats or beaters hinged to the arms. His slats, half by one inch, are kept; every other size is ours. His plates A, changed to reverse the dash when the crank is used alone, are not built.

Vifaa

15

Zana Zinazohitajika

20

Faili za muundo

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