Ubufatanye
UBUHANZI
UBWIZA N'UBUZIMA
UBUKORIKORI
UMUCO N'AMATEKA
IMYIDAGADURO
IBIDUKIKIJE
IBIRIBWA N'IBINYOBWA
UBWUBATSI BUSUBIRA INYUMA
UBUMENYI
SIPORO
IKORANABUHANGA
IBYAMBARWA
Twin-Crank Slide-Top Churn: Two Dashers on a Bent Crank Shaft, Sliding Plates Keep the Milk In
Cable L. Gilpatrick of Saco, Maine, received US 25,405, dated 13 September 1859, for a churn. A crank shaft bent into two opposite cranks rides on two posts above a box and works two dashers, so one goes down as the other comes up. Each dasher is two boards crossed and bored with holes. The staffs pass through holes in two slides that move in casings on the top, following the staffs so the milk cannot splash out.
The patent gives no sizes; every size here is ours.
Hagati
About 2 days, plus printing
Amabwiriza
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1
One up, one down
One up, one down
Gupakira ikaye ya Jupyter…
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2
Two dashers in one box, a few weeks before
Two dashers in one box, a few weeks before
Campbell rocked his two dashers on a lever. Gilpatrick drives his from a bent crank shaft and covers the top with slides.
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Read US 25,405
Read US 25,405
"Motion is then communicated to the dashers by means of the crank-shaft. As one dasher descends, the other ascends. Thus the milk is kept in contant agitation, which is necessary in order to churn expeditiously. The slides being operated upon by the dasher-staffs prevents the milk from splashing out, as it otherwise would do."
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Print the staff collars
Print the staff collars
Each collar is two halves round a crank pin: the lower half with a 30 mm square socket for the staff, and a cap; two M5 screws close them. Print two sets. PETG, 0.2 mm layers, 40 % infill, 4 walls.
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Box A and its posts
Box A and its posts
From 20 mm hardwood make a box 400 x 360 mm and 450 mm deep inside, with a bottom. Make the two 400 mm sides 170 mm taller, narrowed to posts 120 mm wide above the box, and bore each post 13 mm, 600 mm above the bottom's underside, for the shaft. Glue and screw a cleat 20 mm square along the inside of each post side, 30 mm below the rim, for the top. Fill the box with water overnight so it swells tight, then empty it.
Ibikoresho by'iyi ntambwe:
Ikibaho cy'Igiti Gikomeye3 ibice
Ikinyabutabire cy'Ibiti1 igice
Imisumari y'ibiti30 ibiceIbikoresho bikenewe:
Ikimasa cyo ku meza
Umucumita w'Intoki
Icyuma Cyivumbura Kidafite Insinga
Ibyuma Byinshi byo Gucukura
Igifashe cy'inkoni
Igipimo cy'inguni ya dogere mirongo cyenda
Umugozi wo Gupima
Amazi6
6
Crank shaft D and crank E
Crank shaft D and crank E
Cut 12 mm stainless rod about 750 mm long. Heat each bend red with the torch and bend it in the vise into two cranks of 50 mm throw, pointing opposite ways, each crank pin 50 mm long, their middles 180 mm apart. Check the journals line up by rolling the shaft on the bench. Thread one end through a post, the collars' lower halves onto the pins, and the other end through the other post. Fix a hardwood crank E, 160 mm long with a handle, on the end that sticks out.
Ibikoresho by'iyi ntambwe:
Agati k'icyuma kitagira ingese1 igiceIkibaho cy'Igiti Gikomeye1 igice
Udukoni tw'ibiti bikomeye1 igiceIkinyabutabire cy'Ibiti1 igiceIbikoresho bikenewe:
Itara rya Propane
Ifatiro ry'Ameza
Inyundo
Uturindantoki twihanganira ubushyuhe
Umucumita w'Ibyuma
Amakariso (Ikariso ry'Intoki)Icyuma Cyivumbura Kidafite InsingaIbyuma Byinshi byo GucukuraUmugozi wo Gupima7
7
Top A', casings F and slides H
Top A', casings F and slides H
Cut the top to drop onto the cleats, with two slots 140 x 50 mm across it, under the cranks, and a finger hole. Over each slot build a casing F: two rails 20 x 26 mm, 370 mm long, 80 mm apart, with a strip on each that overhangs the inside by 8 mm, and an end block at each end, leaving 346 mm inside. Cut each slide H 240 x 79 mm from 18 mm hardwood, so it slides under the strips, with a hole 34 mm square in its middle, 4 mm bigger than the staff.
Ibikoresho by'iyi ntambwe:
Ikibaho cy'Igiti Gikomeye2 ibiceIkinyabutabire cy'Ibiti1 igiceImisumari y'ibiti24 ibiceIbikoresho bikenewe:
Ikimasa cyo ku meza
Imashini ibaza inkombe
Icyuma cyo kubaza umwobo w'ihuzo
Inyundo y'IgitiIcyuma Cyivumbura Kidafite InsingaIbyuma Byinshi byo Gucukura
Urupapuro rwo GusyaIgifashe cy'inkoni8
8
Staffs B and dashers C
Staffs B and dashers C
Cut two staffs 30 mm square, 480 mm long. For each dasher, half-lap two boards 180 x 50 x 15 mm into a cross, bore eight 12 mm holes, cut a 30 mm square hole in the middle, and glue the staff's end into it. Set the top on its cleats, pass each staff up through its slide's hole, and bolt the collar's cap over its pin and onto the staff's top, turning the cross so its arms point to the box's corners.
Ibikoresho by'iyi ntambwe:
Ikibaho cy'Igiti Gikomeye1 igiceIkinyabutabire cy'Ibiti1 igice
Ibitorezo by'imashini4 ibice
Uruziga Rurambuye4 ibice
Ecrou ifunga ifite umuzingo wa nayiloni4 ibice
Fibere ya PETG1 igiceIbikoresho bikenewe:
Imashini icapa 3D ikoresha umugozi (FDM)Ikimasa cyo ku mezaIcyuma cyo kubaza umwobo w'ihuzoInyundo y'IgitiIcyuma Cyivumbura Kidafite InsingaIbyuma Byinshi byo Gucukura
Ikusanyirizo ry'ibitoreziUrupapuro rwo Gusya9
9
The build in 3D
The build in 3D
FreeCAD model of this build, one side and the lower part of one post cut away: the box, the bent crank shaft on its posts with crank E, the two staffs in their collars, the dashers, and the slides in their casings on the top. The crank was turned through 24 positions.
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10
Churn
Churn
Lift the collars' caps off, take out the top, pour in about 15 litres of heavy cream at about 15 °C, checked with the thermometer, and put the top and caps back. Turn the crank steadily, timing it. When the butter comes, take the top out, lift out the butter, drain the buttermilk, 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'amata15 l
Umunyu w'inyanja munini1 igiceAmazi1 igiceIbikoresho bikenewe:
Igipima ubushyuhe gifite uruti rusigara mu kintu
Isaha yo Guhagarika
Iminzani ya Digitale yo mu Gikoni
Ibakure rinini ryo kuvanga ry'icyuma kitagira ingeseIkusanyirizo ry'ibitorezi11
11
Troubleshooting
Troubleshooting
Twin-crank churn troubleshooting.
Flow
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History and honest limits
History and honest limits
**Cable L. Gilpatrick** of Saco, Maine, US 25,405, 13 September 1859, "Churn". He claimed the crank shaft D and staffs B with the top A', "when said top is provided with boxes (F,) in which play slides, through which the staffs pass". The patent gives no sizes; every size here is ours. His collars are not described beyond "passing around said cranks"; ours are printed and split so the top can come out.
Ibikoresho
12- 3 ibiceUmwanya
- 4 ibiceUmwanya
- 54 ibiceUmwanya
- Umwanya
- 1 igiceUmwanya
- 4 ibiceUmwanya
- 4 ibiceUmwanya
- Umwanya
- 1 igiceUmwanya
- Umwanya
- 1 igiceUmwanya
- 1 igiceUmwanya
Ibikoresho bikenewe
24- 1 vendor sell this, none ship to you yetUmwanya
- Umwanya
- 1 vendor sell this, none ship to you yetUmwanya
- Umwanya
- Umwanya
- 1 vendor sell this, none ship to you yetUmwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
Dosiye z'igishushanyo
2Iki gishushanyo gikora
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CC0 Umurenge rusange
Iyi blueprint yasohowe munsi ya CC0. Ushobora gukoporora, guhindura, gukwirakwiza no gukoresha nta kwemererwa.
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