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Double-Concave Perforated Disk Dasher: Two Tin Domes With Half-Covered Holes
Marsh improved the dasher of "the plain old-fashioned churns so long used by farmers generally."
Joseph Marsh of Petersburg, Menard County, Illinois, received US 7,527, dated 30 July 1850, for a "double-concave perforated discoid churn-dasher": two convex pieces of tin or other suitable material, "perforated and placed on the upright," about six inches across with holes about three-quarters of an inch, "the several holes in B made to cover about half of the several holes in C." It works in a straight-sided churn by raising and pushing it, or by a lever.
This rung works out the open area, then prints the two domes and spacer, fits them to a staff, and makes butter.
初心者
About 1 hour, plus printing
手順
1
1
Half-covered holes
Half-covered holes
Jupyter ノートブックを読み込み中…
2
2
An improved common dasher before it
An improved common dasher before it
The embedded blueprint improves the common dasher with pitched oars. Marsh uses two perforated domes whose holes half overlap.
3
3
Read US 7,527
Read US 7,527
"The convex pieces of tin, as shown at B and C, are or may be six inches in diameter, and the several holes in the same about three-quarters of an inch in diameter, the several holes in B made to cover about half of the several holes in C."
4
4
Print the domes
Print the domes
Print the two domes: 152 mm across with 19 mm holes, the second turned so its holes half cover the first's. Print the spacer ring. Print in PETG at 0.2 mm layers, 30 % infill, 4 walls; wash before first use.
このステップの材料:
PETGフィラメント1 個必要な工具:
FDM 3D プリンター5
5
Print the first dome
6
6
Print the second dome
7
7
Print the spacer ring
8
8
Assemble
Assemble
Glue the two domes back to back on the spacer ring, convex sides out, holes half overlapping, and glue them on the foot of a 12 mm hardwood dowel staff.
このステップの材料:
堅木のダボ1 個
二液性エポキシ1 個必要な工具:
手のこぎり
紙やすり9
9
The churn
The churn
Use a straight-sided food-grade container about 160 mm across and 300 mm tall, so the dasher fits closely without rubbing, as he said. Drill its lid for the staff.
このステップの材料:
食品級の保存容器1 個必要な工具:
コードレスドリル
ホールソーセット10
10
The build in 3D
The build in 3D
FreeCAD model of this build, not of the patent: the straight-sided churn cut away to show the two perforated domes back to back on the staff, and a lever.
11
11
Dash and make butter
Dash and make butter
Let the heavy cream stand until it reaches about 15 °C, checked with the thermometer. Pour in 2 litres. Work the staff up and down; 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.
このステップの材料:
生クリーム2000 ml
粗い海塩1 個
水1 個必要な工具:
差しっぱなしのプローブ温度計
ストップウォッチ
デジタルキッチンスケール
ステンレス鋼の大きな混ぜ鉢12
12
A dasher that sticks or splashes
A dasher that sticks or splashes
Double-concave disk dasher troubleshooting.
Flow
Loading...
13
13
History and honest limits
History and honest limits
**Joseph Marsh** of Petersburg, Menard County, Illinois, received US 7,527, dated 30 July 1850. He wrote that it creates "a suction of atmosphere through the milk ... that excels any improvement in churns of ancient or modern invention"; that is his claim. His churn was straight inside "instead of cone-shaped." He claimed the double-concave perforated discoid churn-dasher.
**Honest limits.** Printed domes stand in for his tin. FDM prints hold food in their layer lines, so wash well and replace when worn. Your times and weights are the result.
材料
7- 1 個プレースホルダー
- 1 個プレースホルダー
- 1 個プレースホルダー
- 1 個プレースホルダー
- 2000 mlプレースホルダー
- 1 個プレースホルダー
- 1 個プレースホルダー
必要な工具
9- プレースホルダー
- プレースホルダー
- プレースホルダー
- 1 vendor sell this, none ship to you yetプレースホルダー
- プレースホルダー
- プレースホルダー
- プレースホルダー
- プレースホルダー
- プレースホルダー
設計ファイル
4この設計図で作るもの
関連ブループリント
これらのブループリントは知識を共有しています — 技術、材料、原理
CC0 パブリックドメイン
このブループリントはCC0で公開されています。許可を求めずに、自由にコピー、修正、配布、あらゆる目的で使用できます。
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