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

Dicipta oleh

Martin

6. Oktober 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.
Lanjutan
About 6 hours, plus printing

Arahan

1

Strokes per minute

Memuatkan buku nota Jupyter…
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.

Bahan untuk langkah ini:

Filamen PETGFilamen PETG1 keping

Alatan diperlukan:

Pencetak 3D filamen (FDM)Pencetak 3D filamen (FDM)
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.

Bahan untuk langkah ini:

Papan painPapan pain1 keping
Kepingan papan lapisKepingan papan lapis1 keping
Bar Bulat Keluli LembutBar Bulat Keluli Lembut1 keping
Bekas simpanan gred makananBekas simpanan gred makanan1 keping
Skru kayu #8 x 1"Skru kayu #8 x 1"1 keping

Alatan diperlukan:

Gergaji TanganGergaji Tangan
Gerudi Tanpa WayarGerudi Tanpa Wayar
Set Mata GerudiSet Mata Gerudi
Set pemutar skruSet pemutar skru
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.

Bahan untuk langkah ini:

Bar Bulat Keluli LembutBar Bulat Keluli Lembut1 keping
Papan painPapan pain1 keping
Paip PVCPaip PVC1 keping
Jalur kulitJalur kulit1 keping
Skru mesinSkru mesin1 keping
Nat HeksagonNat Heksagon1 keping
Epoksi dua komponenEpoksi dua komponen1 keping

Alatan diperlukan:

Gergaji BesiGergaji Besi
Gerudi Tanpa WayarGerudi Tanpa Wayar
Set Mata GerudiSet Mata Gerudi
Sepana boleh larasSepana boleh laras
7

The patent drawing

US 9,416, drawing sheet, public domain (expired patent).
Langkah 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.

Bahan untuk langkah ini:

Krim pekatKrim pekat2000 ml
Garam Laut KasarGaram Laut Kasar1 keping
AirAir1 keping

Alatan diperlukan:

Termometer prob kekalTermometer prob kekal
Jam RandikJam Randik
Penimbang Dapur DigitalPenimbang Dapur Digital
Mangkuk adun keluli tahan karat (besar)Mangkuk adun keluli tahan karat (besar)
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.

Bahan

14

Alatan Diperlukan

11

Blueprint ini membuat

Thumbnail
Pemegang tempat

Tong pengocak mentega

Free

19
0

Blueprint berkaitan

Blueprint ini berkongsi pengetahuan — teknik, bahan atau prinsip

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

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

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MAKANAN & MINUMAN

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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

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34
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

oleh WoodyNO

Kerja Kayu

34
0
0
0
0
0

CC0 Domain Awam

Blueprint ini dikeluarkan di bawah CC0. Anda bebas menyalin, mengubah, mengedar, dan menggunakan karya ini untuk sebarang tujuan, tanpa meminta kebenaran.

Sokong Pembuat dengan membeli produk melalui Blueprint mereka di mana mereka memperoleh Komisen Pembuat ditetapkan oleh Penjual, atau cipta iterasi baru Blueprint ini dan sertakan ia sebagai sambungan dalam Blueprint anda sendiri untuk berkongsi hasil.

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