Ukusebenzisana
UBUCIKO
UBUHLE NEMPILO
UBUCIKO BEZANDLA
AMASIKO NOMLANDO
EZOKUZIJABULISA
IMVELO
UKUDLA NEZIPHUZO
REVERSE ENGINEERING
IZAYENSI
EZEMIDLALO
UBUCHWEPHESHE
IZINTO EZIGQOKWAYO
Bellows-and-Float Atmospheric Churn: Blasts of Air Through a Water-Jointed Pipe, a Float Gathers the Butter
Patrick S. Devlan of Reading, Pennsylvania, received US 24,382, dated 14 June 1859, for a churn worked by blasts of air only. A bellows under the body, worked by a lever, blows up a pipe that opens inside a wider tube; the air goes down between them and out through a perforated disk across the bottom, so it is spread through the whole cream. The cream standing in the tube makes a water joint, so no valves are needed. A perforated float with projections rides up and down on the bubbling cream and gathers the butter as it forms.
This rung builds it with a 20-litre bucket on legs and a bellows below.
Ophakathi
About 1 day, plus printing
Imiyalelo
1
1
The water joint
The water joint
Ilayisha incwadi ye-Jupyter…
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2
Air drawn into the cream, before it
Air drawn into the cream, before it
Wicks drew air in with turning funnels and a dasher. Devlan blows it in with a bellows and has no dasher at all.
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3
Read US 24,382
Read US 24,382
"... this pipe or tube, C, is open at its upper end, but is entirely surrounded to within a short distance of its base by another tube D, of greater diameter which tube D, is connected at its base to the center of the convex perforated disk d."
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4
Print the teat e
Print the teat e
The hollow teat for the lid's middle, over tube D's top. PETG, 0.2 mm layers, 40 % infill, 4 walls; wash before first use.
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5
Print the collar
Print the collar
The collar that seals tube D into the disk's middle. PETG, 0.2 mm layers, 40 % infill, 4 walls; wash before first use.
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6
Stand and bellows
Stand and bellows
Cut three legs a from 44 mm square timber 650 mm long and set them 120 degrees apart round a 350 mm circle. Screw a plywood seat ring 400 mm across, with a 60 mm hole, between them 482 mm up to carry the bucket, a band 600 mm up round the bucket, and a plywood shelf 150 mm up for the bellows. Screw a bellows about 260 x 120 mm to the shelf.
Izinto zokwakha zalesi sinyathelo:
Ukhuni oluthambile lwe-70x70 mm2 izicucu
Ishidi le-plywood2 izicucu
Izikulufu zokhuni24 izicucu
Iglu Lokhuni1 ucezu
Umfutho Womoya1 ucezuAmathuluzi adingekayo:
Isaha Sesandla
Isaha Le-jigsaw
Ibhola Elingenantambo
Iqoqo Lamakhanda Ebhola
Ithephu Lokulinganisa7
7
Pipe C, tube D and disk d
Pipe C, tube D and disk d
Drill the middle of the bucket's floor 16.5 mm and seal a 16 mm stainless pipe C through it with silicone so it stands 400 mm up. Drill 24 holes of 4 mm in two rings in a stainless bowl about 260 mm across and a 32.5 mm hole in its middle, and stand it upside down on the floor round the pipe as disk d. Push a 32 mm stainless tube D 360 mm long through the printed collar into the bowl's middle hole, sealed with silicone, so it surrounds pipe C down to 56 mm above the floor. Run silicone tubing from the bellows' nozzle to pipe C's foot under the floor.
Izinto zokwakha zalesi sinyathelo:
Ibhakede Lamalitha Angu-201 ucezu
Ishubhu lensimbi engagqwali2 izicucu
Isitsha esikhulu sokuxuba sensimbi engagqwali1 ucezu
Isivalo Se-silicone1 ucezu
Ifilamenti ye-PETG1 ucezu
Ipayipi Le-silicone1 ucezuAmathuluzi adingekayo:
Iphrinta ye-3D yentambo (i-FDM)Ibhola ElingenantamboIqoqo Lamakhanda Ebhola
Isethi yamasaha ezimbobo
Isisiki sepayipi
Izinsimbi zokuhlikihla (ezesandla)8
8
Lid, float and lever
Lid, float and lever
Cut a 45 mm hole in the middle of the bucket's lid and glue the teat e over it, with its cap f. Cut float G from 15 mm plywood, 250 mm across with a 48 mm hole for tube D and eight 22 mm holes, and glue 10 mm dowel pegs 25 mm long into both faces as the projections g. Bolt a hardwood lever b to the outside of one leg 360 mm up, running up beside the bucket to a handle c above the lid, and join it to the bellows' top board with a hardwood link.
Izinto zokwakha zalesi sinyathelo:
Ifilamenti ye-PETG1 ucezuIglu Lokhuni1 ucezuIshidi le-plywood1 ucezu
Izikhonkwane zokhuni oluqinile1 ucezu
Ipulangwe Lokhuni Oluqinile2 izicucu
Iqoqo lamabhawoti anezinhlangothi eziyisithupha3 izicucu
Iwasha Eliyisicaba6 izicucu
Inati Yokukhiya Enenayiloni3 izicucuAmathuluzi adingekayo:
Isethi yamasaha ezimboboIsaha Le-jigsawIbhola ElingenantamboIqoqo Lamakhanda EbholaIsaha Sesandla
Iphepha Lokugaya
Isipanela esilungisekayo9
9
The build in 3D
The build in 3D
FreeCAD model of this build, the near half of the body cut away: the stand with its seat, band and shelf, the bellows and hose, pipe C inside tube D, the drilled bowl as disk d, the float with its pegs, the lid with its teat and cover, and the lever with its link.
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10
Churn
Churn
Fill the bucket about one third full: about 6.5 litres of heavy cream at about 15 °C, checked with the thermometer. Drop the float in over tube D and put the lid on. Work the lever steadily and time it: each stroke blows a burst of air up the pipe, down the tube and out through the bowl's holes. When the butter has gathered on the float, lift it out, pour off the buttermilk, wash the butter in cold water until it runs clear, work in a pinch of salt and weigh it.
Izinto zokwakha zalesi sinyathelo:
Ukhilimu ojiyile6.5 l
Usawoti Wolwandle Omkhulu1 ucezu
Amanzi1 ucezuAmathuluzi adingekayo:
Ithemomitha enenaliti eshiywa ngaphakathi
Iwashi Lokumisa Isikhathi
Isikali Sedijithali SasekhishiniIsitsha esikhulu sokuxuba sensimbi engagqwali11
11
Troubleshooting
Troubleshooting
Atmospheric churn troubleshooting.
Flow
Loading...
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12
History and honest limits
History and honest limits
**Patrick S. Devlan** of Reading, Berks County, Pennsylvania (the drawing spells it Devlen), US 24,382, 14 June 1859. Earlier blast churns, he wrote, blew the air in one place, needed valves and did not collect the butter; he claimed the float in a churn worked by blast only. His only quantity is "say one third full". His pipe C rises straight from the bellows and his disk d spans the floor; our hose, drilled bowl, pegs and every size are ours.
Izinto
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