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Telegraph Beater Churn: Nested Knife-Edged Beaters That Whip the Cream
Robbins compared his agitator's work on cream to that "produced by knives upon the whites of eggs, during the process of what is called whipping them up."
Z. C. Robbins of St. Louis, Missouri, received US 6,556, dated 26 June 1849 (antedated 1 June 1849, reissued as No. 159), for what he called the Telegraph Churn: a rotating agitator of four series of thin beaters on radial arms, each series of two, three or more slats one within another with narrow spaces between, narrowing inward. Their front edges are bevelled sharp, their rear edges blunt; reversed, "the butter will be collected into the center."
This rung works out when the cream would fly off, then prints the beater series and spiders, fits them in a box, and makes butter.
中級者
About 3 hours, plus printing
手順
1
1
When the cream flies off
When the cream flies off
Jupyter ノートブックを読み込み中…
2
2
Bevelled beaters on a crank before it
Bevelled beaters on a crank before it
The embedded blueprint bevels its buckets to drive the cream inward. Robbins nests thin knife-edged slats and reverses them to gather the butter.
3
3
Read US 6,556
Read US 6,556
"When the agitator is rotated in milk or cream placed in the churn box, the sharp edges of the beaters cut into and divide the particles, and gather the milk or cream between them by their converging surfaces; and as the beaters ascend, they carry up quantities of milk or cream in the spaces between them, which is discharged in their curved sheets at their rear edges in the atmosphere in the upper part of the churn."
4
4
Print the parts
Print the parts
Print four beater series on end: three nested slats, narrowing inward, sharp at the front and blunt at the rear, joined at both ends. Print two spiders and the crank arm. 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 beater series
Print the beater series
The beater series, printed as step 4 describes.
6
6
Print the spider
7
7
Print the crank arm
8
8
Assemble the agitator
Assemble the agitator
Glue the two spiders on a 10 mm square hardwood axle 130 mm apart, arms in line. Screw a beater series between each pair of arms with M3 screws, all with their sharp edges leading the same way.
このステップの材料:
堅木のダボ1 個
小ねじ1 個
木工用接着剤1 個必要な工具:
手のこぎり
ドライバーセット9
9
The box
The box
Take a food-safe box about 200 × 170 × 170 mm. Drill both ends on the axis 85 mm up, round the axle where it runs, pass it through, and glue the crank arm and a dowel handle on its outer end. He found it could run uncovered.
このステップの材料:
食品級の保存容器1 個
木工用接着剤1 個必要な工具:
コードレスドリル
ドリルビットセット
紙やすり10
10
The build in 3D
The build in 3D
FreeCAD model of this build, not of the patent: the box with one side off to show the agitator of two spiders and four series of nested beaters on the axle, and the crank.
11
11
Crank, then reverse to gather
Crank, then reverse to gather
Let the heavy cream stand until it reaches about 15 °C, checked with the thermometer. Pour in 1.5 litres. Crank steadily, sharp edges leading; time until the butter comes. Then crank backward a while so the blunt rear edges gather it to the centre. 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1500 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
Cream thrown out, butter not gathered
Cream thrown out, butter not gathered
Telegraph beater churn troubleshooting.
Flow
Loading...
13
13
History and honest limits
History and honest limits
**Z. C. Robbins** of St. Louis, Missouri, received US 6,556, dated 26 June 1849; antedated by request 1 June 1849; reissued as No. 159. He wrote that "butter has been produced from milk at the usual churning temperature with this churn, in two minutes"; that is his claim, not our measurement. He did not limit himself to the number or proportions of the parts, nor to any material. He claimed the series of floats or beaters so formed that their thick inclined rear edges gather the butter toward the centre when the motion is reversed.
**Honest limits.** A food-safe box and printed beaters stand in for his. FDM prints hold food in their layer lines, so wash well and replace when worn. Your times and weights are the result.
材料
8- 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
- 2 個プレースホルダー
- 1 個プレースホルダー
- 1500 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
10- 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
- 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
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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。
メイカーを応援するには、ブループリント経由で製品を購入してください。メイカーには メイカーコミッション がベンダーにより設定されています。または、このブループリントの新しいイテレーションを作成し、自分のブループリントにコネクションとして含めて収益を共有できます。



