UBUHANZI
UBWIZA N'UBUZIMA
UBUKORIKORI
UMUCO N'AMATEKA
IMYIDAGADURO
IBIDUKIKIJE
IBIRIBWA N'IBINYOBWA
UBWUBATSI BUSUBIRA INYUMA
UBUMENYI
SIPORO
IKORANABUHANGA
IBYAMBARWA

Spring-Wire Twin Dash Churn: Two Hinged Dashes Rocked by a Sprung Wire on a Crank
Dugdale made the link between crank and dashes a spring.
Samuel G. Dugdale of Richmond, Indiana, received US 8,219, dated 15 July 1851, for a churn: a water-tight box 16 inches long, nine wide and twelve deep, with two perforated dashes seven by six inches hung by hooks on staples three inches above the bottom at each end. A shaft with a three-inch crank turns in grooves in the box's edges, held down by the lid; an elastic wire bent round the crank, closed into an eye, has its ends hooked into staples on the dashes, "in such a manner that it will accommodate itself to the opening and closing of the same."
This rung works out the dashes' swing, then prints the two dashes and shaft bearings, bends the spring wire, and makes butter.
Utangiye
About 2 hours, plus printing
Amabwiriza
1
1
The dashes' swing
The dashes' swing
Gupakira ikaye ya Jupyter…
2
2
Two dashers worked from one motion before it
Two dashers worked from one motion before it
The embedded blueprint links two dashers with levers. Dugdale links his two hinged dashes to one crank with a single sprung wire.
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3
Read US 8,219
Read US 8,219
"It will be noticed, also, that when the handle is raised perpendicular, the crank to which the wire is attached will be parallel to it, and the ends of the wire attached to the dashers, will be extended, and as the handle is turned from you the springs act upon the dashers tending to force them down, thereby facilitating the operation."
4
4
Print the parts
Print the parts
Print two perforated dashes with their hooks and staple and two shaft bearings. Print in PETG at 0.2 mm layers, 30 % infill, 4 walls; wash before first use.
Ibikoresho by'iyi ntambwe:
Fibere ya PETG1 igiceIbikoresho bikenewe:
Imashini icapa 3D ikoresha umugozi (FDM)5
5
Print the dash
Print the dash
The dash, printed as step 4 describes.
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6
Print the shaft bearing
Print the shaft bearing
The shaft bearing, printed as step 4 describes.
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7
Box and staples
Box and staples
Take a food-safe box about 240 × 135 × 180 mm, about three fifths of his. Screw a stainless screw-eye into each end 30 mm above the bottom as the staples, and hang a dash on each by its hooks, holes toward the middle. Screw the bearings to the box's long edges at the middle.
Ibikoresho by'iyi ntambwe:
Ikibindi cyo kubikamo cy'urwego rw'ibiribwa1 igice
Uruganda rw'igiti #8 x 1"1 igiceIbikoresho bikenewe:
Icyuma Cyivumbura Kidafite Insinga
Ibyuma Byinshi byo Gucukura
Ikusanyirizo ry'ibitorezi8
8
Crank and spring wire
Crank and spring wire
Bend a 6 mm steel rod into a shaft with a 45 mm crank in the middle and a handle at one end, and lay it in the bearings. Bend spring-steel wire once round the crank pin into an eye and hook its two ends into the dashes' staples, so the wire is a little stretched with the crank up.
Ibikoresho by'iyi ntambwe:
Umurongo Uzengurutse w'Icyuma Cyoroshye1 igice
Insinga y'icyuma cya kamani1 igiceIbikoresho bikenewe:
Isupana ihindurwa
Umucumita w'Ibyuma9
9
The build in 3D
The build in 3D
FreeCAD model of this build, not of the patent: the box with one side off to show the two perforated dashes hooked to the ends, the spring wire from the crank to their inner ends, and the shaft.
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10
Crank and make butter
Crank and make butter
Let the heavy cream stand until it reaches about 15 °C, checked with the thermometer. Pour in 2 litres, enough to cover the dashes. Fit the lid over the shaft and turn the handle steadily; 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.

Ibikoresho by'iyi ntambwe:
Igice cy'ibinure cy'amata2000 ml
Umunyu w'inyanja munini1 igice
Amazi1 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 ingese11
11
Dashes that jump off, a wire that kinks
Dashes that jump off, a wire that kinks
Spring-wire twin dash troubleshooting.
Flow
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12
History and honest limits
History and honest limits
**Samuel G. Dugdale** of Richmond, Wayne County, Indiana, received US 8,219, dated 15 July 1851. His dashes were half an inch thick with holes leaving 2½ inches plain at the hung ends; collars kept the shaft from slipping; it could be turned by a handle or a pinion on a driving wheel. He claimed "the application of the spring wire ... which connects the crank with the dashers."
**Honest limits.** A food-safe box at about three-fifths scale and printed dashes stand in for his. FDM prints hold food in their layer lines, so wash well and replace when worn. Your times and weights are the result.
Ibikoresho
8- 1 igiceUmwanya
- Umwanya
- 1 igiceUmwanya
- Umwanya
- 1 igiceUmwanya
- 2000 mlUmwanya
- 1 igiceUmwanya
- 1 igiceUmwanya
Ibikoresho bikenewe
10- 1 vendor sell this, none ship to you yetUmwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
Dosiye z'igishushanyo
3Iki gishushanyo gikora
Blueprint zijyanye
Izi blueprint zisangira ubumenyi — uburyo, ibikoresho cyangwa amahame

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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.
