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Self-Turning Roller Churn: Fluted Rollers Spun by a Fixed Wheel as the Dasher Turns
Colver's improvement consisted "in giving the beaters of a churn dasher a revolving motion on their own axis."
Lewis W. Colver of St. Louis, Missouri, received US 6,726, dated 18 September 1849, for a rotary churn-dasher of four horizontal beaters between a cross at one end and a round flat case at the other. Two are wedge beaters; the other two are fluted rollers with hook-shaped flutes, each between two edge-beaters whose inner faces curve in toward it. A belt from a large stationary pulley inside the case turns the rollers fast as the dasher goes round; "the granules of butter are drawn by the hooked flutes into the converging spaces between the rolls and the edge beaters, thus compressing them together."
This rung works out the rollers' speed, then prints the fixed gear, rollers, beaters and end pieces, builds the dasher in a box, and makes butter.
上級者
About 6 hours, plus printing
手順
1
1
How fast the rollers spin
How fast the rollers spin
Jupyter ノートブックを読み込み中…
2
2
Wheels carried round a fixed wheel
Wheels carried round a fixed wheel
The embedded blueprint explains gears carried round a central gear. Colver's rollers are such planets: the central wheel stands still and the dasher carries them round it.
3
3
Read US 6,726
Read US 6,726
"The central pulley is held stationary and the dasher is revolved around it, and as the central pulley is much larger than the others the velocity of the rollers are proportionately increased." And: "I have hitherto described the fluted rollers as driven by a belt, that being most convenient in practice, but it is evident that cogwheels may be employed for the same purpose."
4
4
Print the parts
Print the parts
Print the fixed gear, two fluted rollers with their pinions, two pairs of edge-beaters, two wedge beaters, the cross, the case plate 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 fixed gear
6
6
Print the fluted roller
Print the fluted roller
The fluted roller, printed as step 4 describes.
7
7
Print the edge-beaters
8
8
Print the wedge beater
9
9
Print the cross
10
10
Print the case plate
11
11
Print the crank arm
12
12
Build the dasher
Build the dasher
Bolt the beaters between the cross and the case plate with M3 screws: wedge beaters on two opposite arms, edge-beater pairs on the other two. Drop a fluted roller between each pair, its gudgeons in the cross and the case plate, its pinion beyond the plate. Screw a short 10 mm square hardwood stub into the cross's centre for the crank.
このステップの材料:
小ねじ1 個
六角ナット1 個
堅木のダボ1 個必要な工具:
ドライバーセット
モンキーレンチ
手のこぎり13
13
Fix the gear and fit the box
Fix the gear and fit the box
Take a food-safe box about 230 × 190 × 190 mm. Screw the fixed gear to the inside of one end on the dasher's axis, with a 10 mm steel pin through its centre into the case plate's hole, so the dasher turns round it and its teeth mesh the rollers' pinions. Drill the other end for the crank stub and glue the crank arm and handle on.
このステップの材料:
食品級の保存容器1 個
軟鋼丸棒1 個
#8 × 1 インチ木ねじ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
金切りのこ（ハクソー）ドライバーセット14
14
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 dasher of wedge beaters and fluted rollers between edge-beaters, the fixed gear meshing the rollers' pinions at the case end, and the crank.
15
15
Crank and make butter
Crank and make butter
Let the heavy cream stand until it reaches about 15 °C, checked with the thermometer. Pour in 1.5 litres. Crank steadily; the rollers spin on their own as the dasher turns. 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16
16
Rollers that do not spin, gears that jam
Rollers that do not spin, gears that jam
Self-turning roller churn troubleshooting.
Flow
Loading...
17
17
History and honest limits
History and honest limits
**Lewis W. Colver** of St. Louis, Missouri, received US 6,726, dated 18 September 1849, signed 9 July 1849. The dasher was held by a sliding bolt and wedge so it could be withdrawn; the gudgeons and the round case were packed so the cream could not get into it; a fourth pulley kept the belt's sides from rubbing. He claimed making the beaters of revolving churn dashers to turn upon their own axes.
**Honest limits.** Printed gears stand in for his belt and pulleys, as he allowed; our gears are open to the cream, where his were inside a packed case. FDM prints hold food in their layer lines, so wash well and replace when worn. Your times and weights are the result.
材料
11- 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
- 1 個プレースホルダー
- 1 個プレースホルダー
- 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
11- 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
- 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
8この設計図で作るもの
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