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뷰티 및 웰니스
공예
문화 및 역사
엔터테인먼트
환경
음식 및 음료
역공학
과학
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기술
웨어러블
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.
고급
About 6 hours, plus printing
안내
1
1
Strokes per minute
Strokes per minute
Jupyter 노트북 불러오는 중…
2
2
The swing churn it doubles
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
3
Read US 9,416
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
4
Print the parts
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.
이 단계의 재료:
PETG 필라멘트1 개필요한 도구:
FDM 3D 프린터5
5
Frame and swing
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.
이 단계의 재료:
소나무 판재1 개
합판1 개
연강 환봉1 개
식품용 보관 용기1 개
#8 × 1인치 나무 나사1 개필요한 도구:
손톱(핸드소)
무선 드릴
드릴 비트 세트
드라이버 세트6
6
Wheel, board, lever and dash
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.
이 단계의 재료:
연강 환봉1 개소나무 판재1 개
PVC 파이프1 개
가죽 띠1 개
기계 나사1 개
육각 너트1 개
2액형 에폭시1 개필요한 도구:
쇠톱(핵소)무선 드릴드릴 비트 세트
멍키스패너7
7
The patent drawing
The patent drawing
US 9,416, drawing sheet, public domain (expired patent).
8
8
Swing and make butter
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.
이 단계의 재료:
생크림2000 ml
굵은 천일염1 개
물1 개필요한 도구:
꽂아 두는 프로브 온도계
스톱워치
디지털 주방 저울
큰 스테인리스강 믹싱볼9
9
Pins that miss, a dash that sticks
Pins that miss, a dash that sticks
Double-acting swing dash troubleshooting.
Flow
Loading...
10
10
History and honest limits
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.
재료
14- 1 개플레이스홀더
- 1 개플레이스홀더
- 1 개플레이스홀더
- 1 개플레이스홀더
- 1 개플레이스홀더
- 플레이스홀더
- 1 개플레이스홀더
- 1 개플레이스홀더
- 1 개플레이스홀더
- 1 개플레이스홀더
- 1 개플레이스홀더
- 2000 ml플레이스홀더
- 1 개플레이스홀더
- 1 개플레이스홀더
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