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Rotary-and-Vibrating Dasher Churn: Turn to Churn, Lift and Plunge to Gather
Nash wanted to switch from churning to gathering "without changing the connection of the machinery."
William R. Nash of Bridgeport, Connecticut, received US 7,348, dated 7 May 1850, for working rotary and vertical churn-dashers on one shaft. A rotary dasher of four radial hollow prismatic arms, each with a hole in its forward side near the shaft and an aperture in its rear side near its end, turns above a perforated vibrating dasher held between collars. The pinion on the lid drives the shaft by a pin in a notch, "but the shaft being free to slide vertically upward," the handle on top can work the vibrating dasher up and down.
This rung looks at the hollow arms, then prints both dashers and the notched pinion, fits them in a box, and makes butter.
中级
About 4 hours, plus printing
说明
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1
Air through the arms
Air through the arms
正在加载 Jupyter 笔记本…
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2
Rotary and reciprocating dashers on one spindle before it
Rotary and reciprocating dashers on one spindle before it
The embedded blueprint works both dashers at once from one crank. Nash uses them one after the other: rotary to churn, vibrating to gather.
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3
Read US 7,348
Read US 7,348
"The nature of this invention consists, principally in so arranging and combining in the same churn and upon one shaft, a horizontal rotary dasher and a vertically vibrating dasher, that while the rotary dasher is operated for the purpose of agitating the cream, the vibrating dasher remains at rest; and that when the butter is produced, the vibrating dasher may be operated for the purpose of gathering or consolidating the butter."
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4
Print the parts
Print the parts
Print the rotary dasher with its four hollow triangular arms (/uploads/blueprints/rotary-and-vibrating-dasher-churn-rotary-dasher.stl), the perforated vibrating dasher (/uploads/blueprints/rotary-and-vibrating-dasher-churn-vibrating-dasher.stl), the notched pinion (/uploads/blueprints/rotary-and-vibrating-dasher-churn-notched-pinion.stl) and the crank arm (/uploads/blueprints/rotary-and-vibrating-dasher-churn-crank-arm.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
Shaft and dashers
Shaft and dashers
Use a 12 mm hardwood dowel as the shaft, squared where the rotary dasher sits. Glue two collars of short dowel on it either side of the vibrating dasher so it is carried up and down but turns freely, and glue the rotary dasher 30 mm above. Drill a cross hole for a steel pin just above where the pinion will sit, and fit a handle on top.
此步骤所需材料：
硬木销钉1 个
低碳钢圆棒1 个
木工胶1 个所需工具：
手锯
充电式电钻
钻头套装
钢锯6
6
Lid, pinion and crank
Lid, pinion and crank
Take a food-safe square box about 170 mm each way and cut a two-part plywood lid, one part removable. Seat the pinion on the lid round the shaft, the pin lying in its notch. Mount a crown wheel on a short crank shaft between two posts on the lid so its pegs mesh the pinion, as his gear wheel I, and fit the crank arm.
此步骤所需材料：
食品级贮存容器1 个
胶合板1 个
松木板1 个硬木销钉1 个
#8 × 1 英寸木螺钉1 个所需工具：
钢丝锯（曲线锯）充电式电钻
螺丝刀套装7
7
The patent drawing
The patent drawing
US 7,348 drawing sheet, public domain (expired patent).
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8
Churn by crank, gather by hand
Churn by crank, gather by hand
Let the heavy cream stand until it reaches about 15 °C, checked with the thermometer. Pour in 1.5 litres. Turn the crank; time until the butter comes. Then work the handle up and down, so the vibrating dasher gathers the butter while the gearing rests. 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1500 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
A pin that jumps, a dasher that turns
A pin that jumps, a dasher that turns
Rotary-and-vibrating dasher troubleshooting.
Flow
Loading...
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10
History and honest limits
History and honest limits
**William R. Nash** of Bridgeport, Fairfield County, Connecticut, received US 7,348, dated 7 May 1850. His lid was in two parts so one could be removed "without disturbing" the other; "one or more additional rotary dashers, may be attached to the vertical shaft." He claimed the application of the shaft to give a vertical reciprocating movement to the vibrating dasher and a rotary one to the others, so either can be used.
**Honest limits.** A pegged crown wheel and pinion stand in for his gear wheel and pinion; a food-safe box and printed dashers 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
11- 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
- 1 个占位符
- 1500 毫升占位符
- 1 个占位符
- 1 个占位符
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