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Two-Frame Percussion Dasher Churn: The Upper Frame Strikes the Lower at Every Down Stroke
W. H. Burnham and B. Hibbard of Cortland, New York, received US 15,412, dated 29 July 1856, for a dasher of two slatted frames loosely joined: at each down stroke the lower frame meets the bottom and the upper frame is "driven violently in the contact with the lower frame," forcing the cream up between the bars in thin sheets.
This rung prints the two frames, key and wedge, builds the churn and lever, and makes butter.
中级
About 4 hours, plus printing
说明
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1
The slack between the frames
The slack between the frames
正在加载 Jupyter 笔记本…
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Slats that close on the cream before it
Slats that close on the cream before it
Clement folds a slatted box; Burnham and Hibbard strike one frame on another.
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3
Read US 15,412
Read US 15,412
"Then when the dasher is forced downward, the lower frame of the dasher will be first arrested by the bottom of the box, which will cause the upper frame of the dasher to be driven violently in the contact with the lower frame thereof and by so doing, will cause the cream which is carried down before it, to be driven with percussive force into the spaces between the bars of the lower frame and thence up in thin sheets."
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4
Print the parts
Print the parts
Print the upper frame (/uploads/blueprints/two-frame-percussion-dasher-churn-upper-frame.stl), the lower frame (/uploads/blueprints/two-frame-percussion-dasher-churn-lower-frame.stl) and the key and wedge (/uploads/blueprints/two-frame-percussion-dasher-churn-key-and-wedge.stl). Print in PETG at 0.2 mm layers, 30 % infill, 4 walls; wash before first use.
此步骤所需材料：
PETG线材1 个所需工具：
FDM 3D 打印机5
5
The dasher
The dasher
Glue a 12 mm square hardwood handle into the lower frame and two 6 × 12 mm laths into the upper frame's sockets. Cut a slot 40 mm long down both laths. Set the handle between the laths and push the key through a hole in the handle and through the slots.
此步骤所需材料：
硬木销钉1 个
木工胶1 个所需工具：
手锯
充电式电钻
钻头套装6
6
Box and lever
Box and lever
Use a rectangular food-grade container about 210 by 150 mm on a pine platform. Hinge a pine upright at one end of the platform and pin a pine lever to its top; pin the two laths to the lever above the box.
此步骤所需材料：
食品级贮存容器1 个
松木板1 个
低碳钢圆棒1 个
#8 × 1 英寸木螺钉1 个所需工具：
手锯充电式电钻
螺丝刀套装7
7
The build in 3D
The build in 3D
FreeCAD model of this build: the box cut away to show the two slatted frames, the double handles and key, and the lever on its oscillating upright.
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8
Churn, then gather
Churn, then gather
Let the heavy cream stand until it reaches about 15 °C, checked with the thermometer. Pour in 2 litres. Work the lever steadily; time until the butter comes. Push the wedge into the slots above the handle to hold the frames apart, and work on slowly to gather the butter. 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.
此步骤所需材料：
鲜奶油2000 毫升
粗海盐1 个
水1 个所需工具：
留置式探针温度计
秒表
数字厨房秤
大号不锈钢搅拌盆9
9
Troubleshooting
Troubleshooting
Two-frame dasher troubleshooting.
Flow
Loading...
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10
History and honest limits
History and honest limits
**W. H. Burnham and B. Hibbard** of Cortland village, Cortland County, New York, US 15,412, 29 July 1856, signed 5 June 1856; the drawing reads "Reciprocating Churn." They claimed the dasher of two independent frames combined with each other and the lever. A container, pine and printed parts stand in for theirs. FDM prints hold food in their layer lines, so wash well and replace when worn.
材料
10- 1 个占位符
- 1 个占位符
- 1 个占位符
- 1 个占位符
- 1 个占位符
- 1 个占位符
- 1 个占位符
- 2000 毫升占位符
- 1 个占位符
- 1 个占位符
所需工具
9- 占位符
- 占位符
- 1 vendor sell this, none ship to you yet占位符
- 占位符
- 占位符
- 占位符
- 占位符
- 占位符
- 占位符
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