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Double-Acting Swing Dash Churn: Two Dasher Strokes From Every Swing
Martin

Oluşturan

Martin

6. Ekim 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.
İleri
About 6 hours, plus printing

Talimatlar

1

Strokes per minute

Jupyter defteri yükleniyor…
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 (/uploads/blueprints/double-acting-swing-dash-churn-notched-wheel.stl) and the connecting board with its slot and two pins (/uploads/blueprints/double-acting-swing-dash-churn-connecting-board.stl). 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.

Bu adım için malzemeler:

PETG filamentPETG filament1 adet

Gerekli aletler:

FDM 3B yazıcıFDM 3B yazıcı
5

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.

Bu adım için malzemeler:

Çam tahtaÇam tahta1 adet
Kontrplak levhaKontrplak levha1 adet
Yumuşak Çelik ÇubukYumuşak Çelik Çubuk1 adet
Gıda sınıfı saklama kabıGıda sınıfı saklama kabı1 adet
#8 x 1" ahşap vidası#8 x 1" ahşap vidası1 adet

Gerekli aletler:

El TesteresiEl Testeresi
Kablosuz MatkapKablosuz Matkap
Matkap Ucu TakımıMatkap Ucu Takımı
Tornavida takımıTornavida takımı
6

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.

Bu adım için malzemeler:

Yumuşak Çelik ÇubukYumuşak Çelik Çubuk1 adet
Çam tahtaÇam tahta1 adet
PVC BoruPVC Boru1 adet
Deri şeritDeri şerit1 adet
Makine vidalarıMakine vidaları1 adet
Altıgen SomunAltıgen Somun1 adet
İki bileşenli epoksiİki bileşenli epoksi1 adet

Gerekli aletler:

Demir TesteresiDemir Testeresi
Kablosuz MatkapKablosuz Matkap
Matkap Ucu TakımıMatkap Ucu Takımı
Kurbağacık anahtarKurbağacık anahtar
7

The patent drawing

US 9,416, drawing sheet, public domain (expired patent).
Adım 7 - Image 1
8

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.

Bu adım için malzemeler:

Yağlı kremaYağlı krema2000 ml
İri Deniz Tuzuİri Deniz Tuzu1 adet
SuSu1 adet

Gerekli aletler:

Takılı kalan problu termometreTakılı kalan problu termometre
KronometreKronometre
Dijital Mutfak TerazisiDijital Mutfak Terazisi
Büyük paslanmaz çelik karıştırma kâsesiBüyük paslanmaz çelik karıştırma kâsesi
9

Pins that miss, a dash that sticks

Double-acting swing dash troubleshooting.

Flow

Loading...
10

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.

Malzemeler

14

Gerekli Aletler

11

İlgili Blueprint'ler

Bu blueprint'ler bilgi paylaşır — teknikler, malzemeler veya ilkeler

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Ağaç işleri

7
0
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CC0 Kamu Malı

Bu plan CC0 lisansıyla yayınlanmıştır. İzin almadan kopyalayabilir, değiştirebilir, dağıtabilir ve herhangi bir amaçla kullanabilirsiniz.

Planı üzerinden ürün satın alarak Maker'ı destekleyin, böylece Maker Komisyonu Satıcılar tarafından belirlenen komisyonu kazanırlar veya bu Planın yeni bir versiyonunu oluşturun ve gelir paylaşımı için kendi Planınıza bağlantı olarak ekleyin.

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