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Water-Chamber Box Churn: A Turning Box With a Dash-Frame You Lower to Free the Butter
Buttercup

Yaremwe na

Buttercup

10. Ugushyingo 2026IE
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Water-Chamber Box Churn: A Turning Box With a Dash-Frame You Lower to Free the Butter

S. S. Langdon of Cleveland, Ohio, received US 25,126, dated 16 August 1859, for a rotary churn shaped like a common box. It turns on two journals in a frame. Inside, two zinc partitions set into saw kerfs make a cream chamber in the middle and two water chambers at the ends, for warm or cold water to temper the cream. A dash-frame of bars, held by a spring, sits midway while churning and is lowered to the bottom so the butter comes out without being pulled through it. Langdon gives no sizes; every size here is ours, and stainless steel stands in for his zinc.
Hagati
About 2 days

Amabwiriza

1

How much cream, how much water

Gupakira ikaye ya Jupyter…
2

A box churn tempered with water, before it

Langdon knew a box churn with water chambers had been used without a dasher. He added the dash-frame.
3

Read US 25,126

"When churning, I place the dash-frame about midway from the top to the bottom of the churn, as shown in Fig. 2. When the operation of churning is completed the dash-frame may be lowered to the bottom of the churn in order to remove the butter without interfering with the latter or causing it to adhere to the dasher".
4

Box and kerfs

From 19 mm hardwood cut a bottom 440 x 278 mm, two sides 440 x 240 mm and two ends 240 x 240 mm. Saw a kerf 1 mm wide and 6 mm deep across each side and the bottom, 150.4 mm either side of the middle, for the partitions. Glue and screw the ends between the sides and the box onto the bottom, square.

Ibikoresho by'iyi ntambwe:

Ikibaho cy'Igiti GikomeyeIkibaho cy'Igiti Gikomeye2 ibice
Ikinyabutabire cy'IbitiIkinyabutabire cy'Ibiti1 igice
Imisumari y'ibitiImisumari y'ibiti24 ibice

Ibikoresho bikenewe:

Ikimasa cyo ku mezaIkimasa cyo ku meza
Umucumita w'IntokiUmucumita w'Intoki
Icyuma Cyivumbura Kidafite InsingaIcyuma Cyivumbura Kidafite Insinga
Ibyuma Byinshi byo GucukuraIbyuma Byinshi byo Gucukura
Igifashe cy'inkoniIgifashe cy'inkoni
Igipimo cy'inguni ya dogere mirongo cyendaIgipimo cy'inguni ya dogere mirongo cyenda
Umugozi wo GupimaUmugozi wo Gupima
5

Partitions F and the water chambers E

Cut two stainless sheet plates 251 x 245 mm, 0.8 mm thick, and slide them down the kerfs: each closes off a water chamber 50 mm long at an end. Drill a 17 mm hole low in each end board and one in the bottom of the cream chamber, for the plugs. Fill the box with water overnight so the wood swells tight round the plates; check that each water chamber holds water without filling the cream chamber, then empty it.

Ibikoresho by'iyi ntambwe:

Urupapuro rw'icyuma kitagira ingeseUrupapuro rw'icyuma kitagira ingese1 igice
Fibere ya PETGFibere ya PETG1 igice

Ibikoresho bikenewe:

Ibyuma bikata ibyuma bisanzweIbyuma bikata ibyuma bisanzwe
Amakariso (Ikariso ry'Intoki)Amakariso (Ikariso ry'Intoki)
Icyuma Cyivumbura Kidafite InsingaIcyuma Cyivumbura Kidafite Insinga
Agasanduku k'ibinyo bipfunyitseAgasanduku k'ibinyo bipfunyitse
AmaziAmazi
Imashini icapa 3D ikoresha umugozi (FDM)Imashini icapa 3D ikoresha umugozi (FDM)
6

Print the plugs L

A tapered plug 18 mm at the head, 25 mm long. Print three. PETG, 0.2 mm layers, 100 % infill.
Dosiye y'IgishushanyoSTLCC0 - Free
7

Dash-frame K and spring K'

Cut two hardwood rails 296 x 44 x 20 mm and seven bars 20 x 20 x 196 mm. Fix the bars between the rails set diamond-wise, one corner up, as Fig. 2 draws, 37 mm apart, glued and screwed through the rails. Rivet or screw a bowed strip of stainless spring steel, 256 mm long, along the outside of one rail so it presses on the side and holds the frame wherever you set it.

Ibikoresho by'iyi ntambwe:

Ikibaho cy'Igiti GikomeyeIkibaho cy'Igiti Gikomeye1 igice
Umurongo w'icyuma kitagira ingese wakanzwe ukonje (420)Umurongo w'icyuma kitagira ingese wakanzwe ukonje (420)1 igice
Ikinyabutabire cy'IbitiIkinyabutabire cy'Ibiti1 igice
Imisumari y'ibitiImisumari y'ibiti14 ibice

Ibikoresho bikenewe:

Ikimasa cyo ku mezaIkimasa cyo ku meza
Umucumita w'IntokiUmucumita w'Intoki
Icyuma Cyivumbura Kidafite InsingaIcyuma Cyivumbura Kidafite Insinga
Ibyuma Byinshi byo GucukuraIbyuma Byinshi byo Gucukura
Ibyuma bikata ibyuma bisanzweIbyuma bikata ibyuma bisanzwe
8

Cover G, journals B, frame A and crank C

Cut the cover from 12 mm plywood to the box's outside size. Set four 6 mm bolts head down in the sides' top edges, 75 mm either side of the middle, through matching holes in the cover, with wing nuts on top. Glue and screw a hardwood block 80 x 80 x 40 mm to the middle of each end, bore it 20 mm, drive in a 20 mm steel stub and pin it with a bolt across. Build a pine frame on four posts with open slots in its top rails for the stubs, and a crank with a turned handle on one stub outside the frame.

Ibikoresho by'iyi ntambwe:

Urupapuro rw'ibiti byometseUrupapuro rw'ibiti byometse1 igice
Icyegeranyo cy'inyuzi z'impande esheshatuIcyegeranyo cy'inyuzi z'impande esheshatu6 ibice
Inoti y'amababaInoti y'amababa4 ibice
Uruziga RurambuyeUruziga Rurambuye4 ibice
Ecrou ifunga ifite umuzingo wa nayiloniEcrou ifunga ifite umuzingo wa nayiloni2 ibice
Ikibaho cy'Igiti GikomeyeIkibaho cy'Igiti Gikomeye1 igice
Agati k'icyuma gitunganyijweAgati k'icyuma gitunganyijwe1 igice
Ibiti byoroshye bya 70x70 mmIbiti byoroshye bya 70x70 mm2 ibice
Ikibaho cy'igiti cya pinusiIkibaho cy'igiti cya pinusi1 igice
Ikinyabutabire cy'IbitiIkinyabutabire cy'Ibiti1 igice
Imisumari y'ibitiImisumari y'ibiti24 ibice

Ibikoresho bikenewe:

Umucumita w'IntokiUmucumita w'Intoki
Icyuma Cyivumbura Kidafite InsingaIcyuma Cyivumbura Kidafite Insinga
Agasanduku k'ibinyo bipfunyitseAgasanduku k'ibinyo bipfunyitse
Ibyuma Byinshi byo GucukuraIbyuma Byinshi byo Gucukura
Umucumita w'IbyumaUmucumita w'Ibyuma
Isupana ihindurwaIsupana ihindurwa
Igipimo cy'inguni ya dogere mirongo cyendaIgipimo cy'inguni ya dogere mirongo cyenda
Umugozi wo GupimaUmugozi wo Gupima
9

The build in 3D

FreeCAD model of this build, cover and one side cut away: the cream chamber between the stainless partitions, the water chambers at the ends with their plugs, the dash-frame of diamond-set bars midway, the journal blocks, the frame and the crank. The box was turned through 16 angles in the frame.
Dosiye y'IgishushanyoBLENDCC0 - Free
10

Temper and churn

Fill both water chambers with warm or cold water as needed, checked with the thermometer, and plug them. Set the dash-frame midway, pour in about 5 litres of heavy cream, bolt the cover on and turn the crank steadily, timing it. When the butter comes, take the cover off, push the dash-frame down to the bottom, lift the butter out over it and drain the buttermilk at the bottom plug. Wash the butter in cold water until it runs clear, work in a pinch of salt and weigh it.

Ibikoresho by'iyi ntambwe:

Igice cy'ibinure cy'amataIgice cy'ibinure cy'amata5 l
Umunyu w'inyanja muniniUmunyu w'inyanja munini1 igice
AmaziAmazi1 igice

Ibikoresho bikenewe:

Igipima ubushyuhe gifite uruti rusigara mu kintuIgipima ubushyuhe gifite uruti rusigara mu kintu
Ibirika by'amashanyaraziIbirika by'amashanyarazi
Isaha yo GuhagarikaIsaha yo Guhagarika
Iminzani ya Digitale yo mu GikoniIminzani ya Digitale yo mu Gikoni
Ibakure rinini ryo kuvanga ry'icyuma kitagira ingeseIbakure rinini ryo kuvanga ry'icyuma kitagira ingese
11

Troubleshooting

Water-chamber churn troubleshooting.

Flow

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12

History and honest limits

**S. S. Langdon** of Cleveland, Ohio, US 25,126, 16 August 1859, "Churn". He claimed his construction and arrangement of rotary churns with the dash-frame K and the water chambers E. He gives no sizes, so every size here is ours. Stainless steel replaces his sheet zinc because the cream and buttermilk touch the partitions; four wing-nut bolts are his "thumb screws placed on the edge of the cover"; the spring strip and the journal blocks are our versions of his spring K' and journals B.

Ibikoresho

17

Ibikoresho bikenewe

19

Dosiye z'igishushanyo

2

CC0 Umurenge rusange

Iyi blueprint yasohowe munsi ya CC0. Ushobora gukoporora, guhindura, gukwirakwiza no gukoresha nta kwemererwa.

Shyigikira Umuremyi ugura ibicuruzwa binyuze muri Blueprint ye Komisiyo y'Umuremyi byashyizweho n'Abacuruzi, cyangwa kora verisiyo nshya y'iyi Blueprint ukayinjiza nk'isano muri Blueprint yawe kugira ngo musangire inyungu.

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