UBUCIKO
UBUHLE NEMPILO
UBUCIKO BEZANDLA
AMASIKO NOMLANDO
EZOKUZIJABULISA
IMVELO
UKUDLA NEZIPHUZO
REVERSE ENGINEERING
IZAYENSI
EZEMIDLALO
UBUCHWEPHESHE
IZINTO EZIGQOKWAYO
Trapped-Air Cylinder Dash Churn: A Hollow Dash That Squeezes Air Into the Cream
Murdock wanted the air carried down through the cream by the common up-and-down dash itself.
Charles Murdock of Baltimore, Maryland, received US 6,133, dated 20 February 1849, for "Murdock's Atmospheric Churn": a hollow cylindrical dash, perforated round its lower open end, on the common dash staff, which is bored to slide over a fixed central spindle. The spindle stands in a stationary cylindrical block, smaller than the dash, held to the churn's bottom by a nut. At each stroke the dash fills with air above the cream, carries it down, and when it meets the block the air "is compressed in the cylinder forced radially through the apertures."
This rung works out the air squeezed out each stroke, then prints the dash and block, fits them to a churn, and makes butter.
Oqalayo
About 2 hours, plus printing
Imiyalelo
1
1
Air per stroke
Air per stroke
Ilayisha incwadi ye-Jupyter…
2
2
An air pump in the churn before it
An air pump in the churn before it
The embedded blueprint puts a pump and a ring dasher in the churn. Murdock makes the dash itself the pump.
3
3
Read US 6,133
Read US 6,133
"The air, however, may be let into the cylinder through a valve in its top or side instead of open end which will do away with the necessity of raising the cylinder above the surface of the cream to receive air. The aperture in the staff must be a little larger than the spindle but must not extend through it nor be intersected by any lateral opening."
4
4
Print the dash and block
Print the dash and block
Print the dash open end up: a 90 mm cylinder with sixteen small holes near its open edge and a socket for the staff. Print the block. Print in PETG at 0.2 mm layers, 30 % infill, 4 walls; wash before first use.
Izinto zokwakha zalesi sinyathelo:
Ifilamenti ye-PETG1 ucezuAmathuluzi adingekayo:
Iphrinta ye-3D yentambo (i-FDM)5
5
Print the dash
6
6
Print the block
7
7
Spindle and block
Spindle and block
Drill an 8 mm hole in the centre of a tall food-grade bucket's floor. Pass an M8 threaded rod up through it and the block, with a washer and nut under the floor and silicone round the hole, so the rod stands upright as the spindle.
Izinto zokwakha zalesi sinyathelo:
Ibhakede Lamalitha Angu-201 ucezu
Insika enemicu yesikulufu1 ucezu
Inathi Yezinhlangothi Eziyisithupha1 ucezu
Iwasha Eliyisicaba1 ucezu
Isivalo Se-silicone1 ucezuAmathuluzi adingekayo:
Ibhola Elingenantambo
Iqoqo Lamakhanda Ebhola
Isipanela esilungisekayo
Isaha Sensimbi8
8
Staff and lid
Staff and lid
Bore a 25 mm hardwood dowel lengthwise, 10 mm, deep enough to slide over the spindle's full height but not through its top, and glue the dash on its foot. Drill the lid for the staff and fit a knob on top.
Izinto zokwakha zalesi sinyathelo:
Izikhonkwane zokhuni oluqinile1 ucezu
Ibhulokhi Lokhuni Oluqinile1 ucezu
Iglu Lokhuni1 ucezuAmathuluzi adingekayo:
Ibhola ElingenantamboIqoqo Lamakhanda Ebhola
Isaha Sesandla
Iphepha Lokugaya9
9
The build in 3D
The build in 3D
FreeCAD model of this build, not of the patent: the churn and dash cut away to show the hollow dash with its holes near the open end, the bored staff over the fixed spindle, and the stationary block it closes over.
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 1.5 litres. Work the staff up and down, lifting the dash above the cream each time to fill it with air; bubbles burst from the holes at the foot of each 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.
Izinto zokwakha zalesi sinyathelo:
Ukhilimu ojiyile1500 ml
Usawoti Wolwandle Omkhulu1 ucezu
Amanzi1 ucezuAmathuluzi adingekayo:
Ithemomitha enenaliti eshiywa ngaphakathi
Iwashi Lokumisa Isikhathi
Isikali Sedijithali Sasekhishini
Isitsha esikhulu sokuxuba sensimbi engagqwali11
11
No bubbles, a staff that sticks
No bubbles, a staff that sticks
Trapped-air cylinder dash churn troubleshooting.
Flow
Loading...
12
12
History and honest limits
History and honest limits
**Charles Murdock** of Baltimore, Maryland, received US 6,133, dated 20 February 1849, signed 21 November 1848. The dash could be formed in the underside of the dash block, or as a cylinder fixed to the dash's periphery; in a stone churn the spindle's hole could be drilled and bushed. He claimed the combination of the hollow perforated cylinder dash and the central guide spindle and stationary block with the ordinary upright tub churn.
**Honest limits.** A bucket, threaded rod and printed parts stand in for his churn, spindle and dash. FDM prints hold food in their layer lines, so wash well and replace when worn. Your times and weights are the result.
Izinto
12- 1 ucezuIsibambeli
- 1 ucezuIsibambeli
- 1 ucezuIsibambeli
- Isibambeli
- 1 ucezuIsibambeli
- 1 ucezuIsibambeli
- Isibambeli
- 1 ucezuIsibambeli
- 1 ucezuIsibambeli
- 1500 mlIsibambeli
- 1 ucezuIsibambeli
- 1 ucezuIsibambeli
Amathuluzi Adingekayo
11- Isibambeli
- 1 vendor sell this, none ship to you yetIsibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
Amafayela omklamo
3Le blueprint yenza
Ama-blueprint ahlobene
Lama-blueprint abelana ngolwazi — amasu, izinto noma izimiso
Air-Pump Annular Dasher Churn: A Pump in the Middle, a Ring Dasher Round It
ngu-Martin
UKUDLA NEZIPHUZO
32
0
0
0
0
0
Reacting Churn Dasher: Two Rows of Oars Pitched Opposite Ways
ngu-TheChef
UKUDLA NEZIPHUZO
37
0
0
0
0
0
Hollow-Arm Air Churn: A Spinning Dasher That Breathes Air Into the Cream
ngu-Emma
UKUDLA NEZIPHUZO
29
0
0
0
0
0
CC0 Isizinda Somphakathi
Le blueprint ikhishwe ngaphansi kwe-CC0. Ukhululekile ukukopisha, ukuguqula, ukusabalalisa, nokusebenzisa ngaphandle kwemvume.
Sekela uMenzi ngokuthenga imikhiqizo nge-Blueprint yabo IKhomishane Yomenzi kumiswe ngabathengisi, noma dala inguqulo entsha yale Blueprint bese uyifaka njengoxhumaniso ku-Blueprint yakho ukuze wabelane ngemali engenayo.