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Counter-Rotating Egg Beater: One Wheel, Two Beaters Turning Opposite Ways
A single whisk carries the egg round with it rather than cutting through it.
James F. Monroe of Fitchburg, Massachusetts, and E. P. Monroe of New York received US 23,694, dated 19 April 1859, for an egg beater: a frame clamped to a table carries a bevel wheel turned by a handle, gearing into two pinions on opposite sides of it; one turns an inner beater of bent wires, the other an outer beater round it, "in opposite directions."
This rung works out the beater speeds, then prints the crown wheel and pinions, bends the beaters, and times a beating.
中级
About 5 hours, plus printing
说明
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1
Beater speeds
Beater speeds
正在加载 Jupyter 笔记本…
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The gear train it uses
The gear train it uses
The embedded blueprint works gear ratios and direction. Monroe takes two pinions off opposite sides of one wheel so they turn opposite ways.
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3
Read US 23,694
Read US 23,694
"This invention consists in arranging in an adjustable frame two beaters, one inside the other, which receive motion in opposite directions by means of two pinions which gear into a large bevel wheel and on opposite sides of the same, so that by rotating the bevel wheel by means of a handle the beaters receive the required motion."
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4
Print the gears
Print the gears
Print the 48-tooth crown wheel (/uploads/blueprints/counter-rotating-egg-beater-crown-wheel.stl) and two 12-tooth pinions (/uploads/blueprints/counter-rotating-egg-beater-pinion.stl). Print in PETG at 0.2 mm layers, 30 % infill, 4 walls.
此步骤所需材料：
PETG线材1 个所需工具：
FDM 3D 打印机5
5
Build the frame
Build the frame
Cut a plywood upright and two arms. Bolt the crown wheel to the upright on an M5 screw with washers so it turns freely, and fix a handle screw near its rim. Drill the arms 5 mm on the line through both pinions' centres.
此步骤所需材料：
胶合板1 个
机螺钉1 个
平垫圈1 个
六角螺母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
钻头套装
活动扳手
螺丝刀套装6
6
Arbor and inner beater
Arbor and inner beater
Cut 200 mm of 5 mm rod. Epoxy one pinion on it to mesh at the wheel's top, and bend two wire loops 28 mm across at its lower end.
此步骤所需材料：
低碳钢圆棒1 个
不锈钢丝1 个
双组分环氧胶1 个所需工具：
钢锯
圆嘴钳
平口钳7
7
Sleeve and outer beater
Sleeve and outer beater
Glue the second pinion to a length of silicone tube sleeved loosely over the rod, meshing at the wheel's bottom. Bend two wire loops 48 mm across and fix them to the sleeve's lower end, round the inner beater.
此步骤所需材料：
硅胶管1 个不锈钢丝1 个双组分环氧胶1 个所需工具：
圆嘴钳平口钳
6 英寸数显卡尺8
8
The patent drawing
The patent drawing
US 23,694 drawing sheet, public domain (expired patent).
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9
Beat egg whites
Beat egg whites
Clamp the frame to the table over the bowl with two egg whites. Turn the handle about once a second and time how long until they hold stiff peaks.
此步骤所需材料：
鸡蛋2 个所需工具：
大号不锈钢搅拌盆
秒表10
10
Beaters that turn together, jam or clash
Beaters that turn together, jam or clash
Counter-rotating egg beater troubleshooting.
Flow
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11
History and honest limits
History and honest limits
**James F. Monroe** of Fitchburg, Massachusetts, and **E. P. Monroe** of New York, assignors to E. P. Monroe, received US 23,694, dated 19 April 1859, reissued 16 October 1860 (No. 1,062). The frame's fork clamps to a table with a set screw and washer. The second pinion lies loose on the arbor, driving the outer beater whose lower collar turns loosely round the arbor's end. They noted it also mixes paint.
**Honest limits.** FDM prints hold food in their layer lines, so wash well and replace when worn. A crown wheel and spur pinions stand in for his bevel gears, and a silicone sleeve for his loose pinion. Your times 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
- 2 个占位符
- 2 个占位符
- 1 个占位符
- 2 个占位符
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