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Ratchet-Bar Egg Beater: Push a Rack, the Floats Spin Both Ways
Harvey Miller, Cincinnati, Ohio · Public domain (expired patent)
YourGrandma

Nilikha ni

YourGrandma

6. Oktubre 2026IS
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Ratchet-Bar Egg Beater: Push a Rack, the Floats Spin Both Ways

Beating eggs in a closed beater keeps the air out, and a beater bolted to its vessel is slow to empty and clean. Harvey Miller of Cincinnati, Ohio, received US 18,759, dated 1 December 1857, for an egg beater: a frame whose standards clasp an open jar, a bar sliding through slots that gears into a pinion on a vertical spindle, and wire floats on the spindle that turn rapidly one way then the other as the bar is pushed to and fro; lifting the frame frees the jar. This rung works out the turns per stroke, then prints the rack and pinion, builds the frame and floats, and times a beating.
Katamtaman
About 5 hours, plus printing

Mga Tagubilin

1

Turns per stroke

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2

The rack and pinion it uses

The embedded blueprint turns a straight push into rotation. Miller pushes the rack by hand and the pinion spins the floats.
3

Read US 18,759

"By this arrangement, if one hand be placed upon the upper bar B to hold the machine steady, while with the other hand upon the handle j, of the ratchet bar g, a reciprocating motion be given to the ratchet bar, then the spindle c, with its floats d, is set in rapid motion, alternately revolving in each direction."
4

Print the rack and pinion

Print the 12-tooth pinion (/uploads/blueprints/ratchet-bar-egg-beater-pinion.stl) and the 20-tooth rack (/uploads/blueprints/ratchet-bar-egg-beater-rack.stl). Print in PETG at 0.2 mm layers, 30 % infill, 4 walls.

Mga materyales para sa hakbang na ito:

PETG filamentPETG filament1 piraso

Mga kailangang kasangkapan:

Limbagang 3D na FDMLimbagang 3D na FDM
5

Build the frame

Cut two 170 mm standards and two cross-bars from hardwood. Screw them into a gate that straddles the jar, cut 13 × 11 mm slots across the standards' tops for the rack, and give the feet a curve to fit the jar.

Mga materyales para sa hakbang na ito:

Tipak ng Matigas na KahoyTipak ng Matigas na Kahoy1 piraso
Turnilyong pangkahoy #8 x 1"Turnilyong pangkahoy #8 x 1"1 piraso

Mga kailangang kasangkapan:

Lagaring PangkurbaLagaring Pangkurba
Kikil (Kikil na Pangkamay)Kikil (Kikil na Pangkamay)
Walang-Kableng BarenaWalang-Kableng Barena
Hanay ng Talim ng BarenaHanay ng Talim ng Barena
Set ng mga distornilyadorSet ng mga distornilyador
RulerRuler
6

Make the spindle and floats

Cut 160 mm of 5 mm steel rod. Bend three loops of stainless wire 45 mm across and 50 mm high, bind their ends to the rod's lower end, and epoxy them. Press the pinion onto the top.

Mga materyales para sa hakbang na ito:

Bilog na Bara ng Malambot na AseroBilog na Bara ng Malambot na Asero1 piraso
Kawad na hindi kinakalawang na aseroKawad na hindi kinakalawang na asero1 piraso
Epoksing dalawang bahagiEpoksing dalawang bahagi1 piraso

Mga kailangang kasangkapan:

Lagaring Pang-metalLagaring Pang-metal
Plais na bilog ang duloPlais na bilog ang dulo
Plais na Patag ang NgusoPlais na Patag ang Nguso
Malinaw na Salaming PangkaligtasanMalinaw na Salaming Pangkaligtasan
7

Assemble

Hang the spindle from the lower cross-bar in a 5 mm hole, slide the rack through the slots so its teeth mesh with the pinion, and stand the gate over the bowl.

Mga materyales para sa hakbang na ito:

Patag na SinturonPatag na Sinturon1 piraso

Mga kailangang kasangkapan:

Walang-Kableng BarenaWalang-Kableng Barena
Hanay ng Talim ng BarenaHanay ng Talim ng Barena
8

The patent drawing

US 18,759 drawing sheet, public domain (expired patent).
Hakbang 8 - Image 1
9

Beat egg whites

Separate two egg whites into the bowl. Pump the rack at about two strokes a second and time how long until they hold stiff peaks.
Hakbang 9 - Image 1

Mga materyales para sa hakbang na ito:

ItlogItlog2 piraso

Mga kailangang kasangkapan:

Malaking mangkok na panghalo na asero na hindi kinakalawangMalaking mangkok na panghalo na asero na hindi kinakalawang
Panukat ng OrasPanukat ng Oras
10

A rack that jams, slips or a float that hits the bowl

Ratchet-bar egg beater troubleshooting.

Flow

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11

History and honest limits

**Harvey Miller** of Cincinnati, Ohio, received US 18,759, dated 1 December 1857. His frame and parts were cast iron, the floats iron wire coated with tin, the jar porcelain or tin with no cover, so air has free access; neither shaft nor floats touch the vessel. He did not claim the ratchet bar or revolving beaters alone, only the frame with them in combination with the jar. **Honest limits.** FDM prints hold food in their layer lines, so wash well and replace when worn. Printed PETG gears and a hardwood gate stand in for cast iron. Your times are the result.

Mga Materyales

8

Mga Kinakailangang Kasangkapan

13

Ang blueprint na ito ay gumagawa ng

Thumbnail
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Pinipihit na batidor ng itlog

Free

4
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Kaugnay na Blueprint

Ang mga blueprint na ito ay nagbabahagi ng kaalaman — mga teknik, materyales, o prinsipyo

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The Involute: Why Gear Teeth Are That Shape and No Other

The Involute: Why Gear Teeth Are That Shape and No Other

ni MartinNO

Mekanika

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Gear Trains: Idlers, Compounding and Hitting a Given Ratio

Gear Trains: Idlers, Compounding and Hitting a Given Ratio

ni MartinNO

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CC0 Pampublikong Domain

Ang blueprint na ito ay inilabas sa ilalim ng CC0. Malaya kang kumopya, magbago, mamahagi, at gumamit nang walang pahintulot.

Suportahan ang Maker sa pamamagitan ng pagbili ng mga produkto sa kanilang Blueprint Komisyon ng Maker itinakda ng mga Vendor, o lumikha ng bagong bersyon ng Blueprint na ito at isama bilang koneksyon sa iyong Blueprint upang ibahagi ang kita.

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