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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

Imeundwa na

YourGrandma

6. Oktoba 2026IS
40
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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.
Kati
About 5 hours, plus printing

Maagizo

1

Turns per stroke

Inapakia daftari la Jupyter…
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 and the 20-tooth rack. Print in PETG at 0.2 mm layers, 30 % infill, 4 walls.

Vifaa kwa hatua hii:

Uzi wa PETGUzi wa PETG1 kipande

Zana zinazohitajika:

Printa ya 3D ya nyuzi (FDM)Printa ya 3D ya nyuzi (FDM)
5

Print the pinion

The pinion, printed as step 4 describes.
Faili ya UsanifuSTLCC0 - Free
Pakua modeli
6

Print the rack

The rack, printed as step 4 describes.
Faili ya UsanifuSTLCC0 - Free
Pakua modeli
7

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.

Vifaa kwa hatua hii:

Kipande cha mbao ngumuKipande cha mbao ngumu1 kipande
Skrubu ya mti #8 x inchi 1Skrubu ya mti #8 x inchi 11 kipande

Zana zinazohitajika:

Msumeno wa kukata mikunjoMsumeno wa kukata mikunjo
Tupa (Tupa ya Mkono)Tupa (Tupa ya Mkono)
Kekee cha BetriKekee cha Betri
Seti ya vichimbuziSeti ya vichimbuzi
Seti ya bisibisiSeti ya bisibisi
RulaRula
8

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.

Vifaa kwa hatua hii:

Ufito wa chuma lainiUfito wa chuma laini1 kipande
Waya wa chuma cha puaWaya wa chuma cha pua1 kipande
Epoksi ya Sehemu MbiliEpoksi ya Sehemu Mbili1 kipande

Zana zinazohitajika:

Msumeno wa chumaMsumeno wa chuma
Koleo lenye Ncha za DuaraKoleo lenye Ncha za Duara
Koleo la Mdomo BapaKoleo la Mdomo Bapa
Miwani ya usalama iliyo waziMiwani ya usalama iliyo wazi
9

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.

Vifaa kwa hatua hii:

Washa bapaWasha bapa1 kipande

Zana zinazohitajika:

Kekee cha BetriKekee cha Betri
Seti ya vichimbuziSeti ya vichimbuzi
10

The patent drawing

US 18,759 drawing sheet, public domain (expired patent).
Hatua 10 - Image 1
11

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.
Hatua 11 - Image 1

Vifaa kwa hatua hii:

YaiYai2 vipande

Zana zinazohitajika:

Bakuli kubwa la kuchanganyia la chuma cha puaBakuli kubwa la kuchanganyia la chuma cha pua
Saa ya kupima mudaSaa ya kupima muda
12

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

Ratchet-bar egg beater troubleshooting.

Flow

Loading...
13

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.

Vifaa

8

Zana Zinazohitajika

13

Faili za muundo

2

Mchoro huu unatengeneza

Thumbnail
Kishikilia nafasi

Kipigo mayai cha kuzungusha

Free

9
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Blueprint zinazohusiana

Blueprint hizi zinashiriki maarifa — mbinu, vifaa au kanuni

Rack and Pinion

Rack and Pinion

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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

na MartinNO

Mitambo

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Gear Trains: Idlers, Compounding and Hitting a Given Ratio

Gear Trains: Idlers, Compounding and Hitting a Given Ratio

na MartinNO

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