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FEGURÐ OG VELLÍÐAN
HANDVERK
MENNING OG SAGA
SKEMMTUN
UMHVERFI
MATUR OG DRYKKUR
ÖFUGVERKFRÆÐI
VÍSINDI
ÍÞRÓTTIR
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Double-Acting Swing Dash Churn: Two Dasher Strokes From Every Swing
Martin

Búin til af

Martin

6. október 2026NO
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Double-Acting Swing Dash Churn: Two Dasher Strokes From Every Swing

The Davises doubled the work a swinging churn gets from each swing. William F. Davis and Nathan Davis of Castleton, Vermont, received US 9,416, dated 23 November 1852, for "The Oscillating Double-Acting Dash-Churn": a tank hung in a pendulum frame between standards three and a half feet long; a connecting board pinned to one pendulum bar, slotted to slide on the rock shaft, carrying two pins that enter two opposite notches in a wheel fixed to the rock shaft; and a lever from the rock shaft to a hollow dash stick with a valve "for the purpose of preventing a vacuum underneath the dash." This rung works out the strokes, then prints the notched wheel and connecting board, builds the frame and swing, and makes butter.
Lengra kominn
About 6 hours, plus printing

Leiðbeiningar

1

Strokes per minute

Hleð Jupyter-vinnubók…
2

The swing churn it doubles

The embedded blueprint gives one dasher stroke per swing through a bent lever. The Davises' notched wheel and two-pinned board give two.
3

Read US 9,416

"As the swing moves from the center toward the left and back the upper pin leaves the upper notch and the lower pin enters its respective notch, producing substantially the same result as when the upper pin entered the upper notch and passed toward the right and back. Thus we produce two complete motions of the dash from one full oscillation of the pendulum bars."
4

Print the parts

Print the notched wheel and the connecting board with its slot and two pins. Reuse the dasher and valve plug from the pendulum swing dash churn if you have them. Print in PETG at 0.2 mm layers, 30 % infill, 4 walls; wash before first use.

Efni fyrir þetta skref:

PETG-þráðurPETG-þráður1 stykki

Nauðsynleg verkfæri:

FDM-þrívíddarprentariFDM-þrívíddarprentari
5

Print the notched wheel

The notched wheel, printed as step 4 describes.
HönnunarskráSTLCC0 - Free
Sækja líkan
6

Print the connecting board

The connecting board, printed as step 4 describes.
HönnunarskráSTLCC0 - Free
Sækja líkan
7

Frame and swing

Build two pine A-frames about 520 mm tall joined at the top, with diagonal cross pieces carrying the rock shaft, and hang a swing of two pine bars and a plywood board from a rod at the top. Stand a straight-sided food-grade container on the board as the tank.

Efni fyrir þetta skref:

FuruborðFuruborð1 stykki
KrossviðarplataKrossviðarplata1 stykki
Kringlótt stöng úr deigu stáliKringlótt stöng úr deigu stáli1 stykki
Geymslubox í matvælaflokkiGeymslubox í matvælaflokki1 stykki
Tréskrúfa #8 x 1"Tréskrúfa #8 x 1"1 stykki

Nauðsynleg verkfæri:

HandsögHandsög
HleðsluborHleðslubor
BorasettBorasett
SkrúfjárnasettSkrúfjárnasett
8

Wheel, board, lever and dash

Fix the notched wheel on a 12 mm steel rock shaft. Pin the connecting board to one swing bar, its slot over the shaft, so its pins meet the notches. Fix a pine lever to the rock shaft and pin its end to a hollow 18 mm food-grade tube dash stick with a leather flap valve near its top and a perforated dasher at its foot.

Efni fyrir þetta skref:

Kringlótt stöng úr deigu stáliKringlótt stöng úr deigu stáli1 stykki
FuruborðFuruborð1 stykki
PVC-rörPVC-rör1 stykki
LeðurstrimillLeðurstrimill1 stykki
VélskrúfurVélskrúfur1 stykki
SexkantróSexkantró1 stykki
Tveggja þátta epoxýTveggja þátta epoxý1 stykki

Nauðsynleg verkfæri:

JárnsögJárnsög
HleðsluborHleðslubor
BorasettBorasett
SkiptilykillSkiptilykill
9

The patent drawing

US 9,416, drawing sheet, public domain (expired patent).
Skref 9 - Image 1
10

Swing and make butter

Let the heavy cream stand until it reaches about 15 °C, checked with the thermometer. Pour in 2 litres. Swing the tank steadily; the dasher strokes twice each full swing. 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.

Efni fyrir þetta skref:

RjómiRjómi2000 ml
Gróft sjávarsaltGróft sjávarsalt1 stykki
VatnVatn1 stykki

Nauðsynleg verkfæri:

Hitamælir með nema sem situr íHitamælir með nema sem situr í
SkeiðklukkaSkeiðklukka
Stafræn eldhúsvogStafræn eldhúsvog
Stór hrærskál úr ryðfríu stáliStór hrærskál úr ryðfríu stáli
11

Pins that miss, a dash that sticks

Double-acting swing dash troubleshooting.

Flow

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12

History and honest limits

**William F. Davis and Nathan Davis** of Castleton, Rutland County, Vermont, received US 9,416, dated 23 November 1852. Their standards were 2 by 1 inches, 3½ feet long, spread three feet at the bottom, pairs 15 inches apart; the swing board was 13 by 14 inches; the dash stick's hole was ⅝ inch. They claimed the combination of the swing, slotted board, wheel, rock shaft and lever producing two motions of the dash from one oscillation. **Honest limits.** A smaller frame, a container and printed parts stand in for theirs; their swing length is estimated. FDM prints hold food in their layer lines, so wash well and replace when worn. Your times and weights are the result.

Efni

14

Nauðsynleg verkfæri

11

Hönnunarskrár

2

Þessi teikning býr til

Thumbnail
Tímabundinn texti

Strokkur

Free

19
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Tengd Blueprint

Þessi blueprint deila þekkingu — tækni, efni eða meginreglur

Pendulum Swing Dash Churn: Rock the Hanging Tank, the Dasher Works Itself

Pendulum Swing Dash Churn: Rock the Hanging Tank, the Dasher Works Itself

eftir MartinNO

MATUR OG DRYKKUR

33
0
0
0
0
0
Valved Hollow-Staff Plunger Churn: A Valve at the Top, Air Forced Out at the Foot

Valved Hollow-Staff Plunger Churn: A Valve at the Top, Air Forced Out at the Foot

eftir TheChefDK

MATUR OG DRYKKUR

37
0
0
0
0
0
Double-Swing Churn: Swing the Platform, the Toothed Pieces Work Both Dashers

Double-Swing Churn: Swing the Platform, the Toothed Pieces Work Both Dashers

eftir WoodyNO

Trésmiði

34
0
0
0
0
0

CC0 opinbert ríki

Þessi teikning er gefin út undir CC0. Þér er frjálst að afrita, breyta, dreifa og nota þetta verk í hvaða tilgangi sem er, án þess að biðja um leyfi.

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