SANAA
UREMBO NA USTAWI
UJANJA
UTAMADUNI NA HISTORIA
BURUDANI
MAZINGIRA
CHAKULA NA VINYWAJI
UHANDISI WA KINYUME
SAYANSI
MICHEZO
TEKNOLOJIA
VAZI
Valved Hollow-Staff Plunger Churn: A Valve at the Top, Air Forced Out at the Foot
Ellicott's dasher draws its air down through its own handle.
Peter F. Ellicott of Philadelphia, Pennsylvania, received US 7,454, dated 25 June 1850, for an atmospheric churn: "in any ordinary vertical churn," an upright hollow staff connected at the bottom to a square or round hollow plunger open below, with air holes in its sides "1/2 inch in diameter," and a valve inside the staff at its top "so arranged that when the said staff and plunger are raised, the valve will open," and when forced down "the valve will close, and the atmospheric air in the plunger will be forced through the body of the milk or cream."
This rung works out the air per stroke, then prints the plunger and valve cap, fits them to a hollow staff, and makes butter.
Mwanzo
About 1 hour, plus printing
Maagizo
1
1
Air per stroke
Air per stroke
Inapakia daftari la Jupyter…
2
2
A hand dasher that pumps air before it
A hand dasher that pumps air before it
The embedded blueprint pumps air with a tube over a loose plunger. Ellicott's air comes down a hollow staff through a valve at its top.
3
3
Read US 7,454
Read US 7,454
"C, Fig. 1 is a square or round dasher or plunger being hollow and open at the lower end with air holes, in the sides, 1/2 inch in diameter, and knobs outside. D, Fig. 2 is a full size section of valve placed on the top of the staff B, Fig. 1."
4
4
Print the parts
Print the parts
Print the hollow plunger open end down, with its twelve side holes and a socket for the staff, and the valve cap. Print in PETG at 0.2 mm layers, 30 % infill, 4 walls; wash before first use.
Vifaa kwa hatua hii:
Uzi wa PETG1 kipandeZana zinazohitajika:
Printa ya 3D ya nyuzi (FDM)5
5
Print the plunger
6
6
Print the valve cap
Print the valve cap
The valve cap, printed as step 4 describes.
7
7
Staff and valve
Staff and valve
Cut a length of 12–13 mm food-grade tube as the hollow staff, as long as the churn is deep plus 150 mm, and glue it into the plunger's socket. Glue a small leather flap inside the valve cap over its port, hinged on the cap's pin, so it lifts to let air in as the staff rises and seats as it falls; glue the cap on the staff's top.
Vifaa kwa hatua hii:
Bomba la PVC1 kipande
Ukanda wa ngozi1 kipande
Epoksi ya Sehemu Mbili1 kipandeZana zinazohitajika:
Msumeno wa chuma
Sandarusi (karatasi ya kusugua)8
8
The churn
The churn
Drill a food-grade bucket's lid at the centre for the staff, a little larger than it.
Vifaa kwa hatua hii:
Ndoo ya Lita 201 kipandeZana zinazohitajika:
Kekee cha Betri
Seti ya misumeno ya duara9
9
The build in 3D
The build in 3D
FreeCAD model of this build, not of the patent: the churn cut away to show the hollow plunger with its side holes, the hollow staff through the lid and the valve cap on top.
10
10
Dash and make butter
Dash and make butter
Let the heavy cream stand until it reaches about 15 °C, checked with the thermometer. Pour in 2 litres. Work the staff up and down; bubbles should burst from the plunger's holes on each down-stroke. Time until the butter comes. Pour off the buttermilk, add cold water, churn a little and pour off again until it runs clear; work in a pinch of salt and weigh the butter.
Vifaa kwa hatua hii:
Malai nzito2000 ml
Chumvi ya Bahari Mbichi1 kipande
Maji1 kipandeZana zinazohitajika:
Kipima joto chenye kijiti kinachobaki ndani
Saa ya kupima muda
Mizani ya dijitali ya jikoni
Bakuli kubwa la kuchanganyia la chuma cha pua11
11
No bubbles, cream up the staff
No bubbles, cream up the staff
Valved hollow-staff plunger churn troubleshooting.
Flow
Loading...
12
12
History and honest limits
History and honest limits
**Peter F. Ellicott** of Philadelphia, Pennsylvania, received US 7,454, dated 25 June 1850. His drawing shows the plunger with knobs outside and a full-size section of the valve. He claimed "a hollow staff connected with a square or round hollow plunger, with a valve placed at the top, or at any point inside of said staff," to be used in any vessel containing milk or cream.
**Honest limits.** Food-grade tube and printed parts stand in for his staff, plunger and valve; our holes are smaller than his half inch. FDM prints hold food in their layer lines, so wash well and replace when worn. Your times and weights are the result.
Vifaa
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Faili za muundo
3Mchoro huu unatengeneza
Blueprint zinazohusiana
Blueprint hizi zinashiriki maarifa — mbinu, vifaa au kanuni
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CC0 Umma Wote
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