UBUHANZI
UBWIZA N'UBUZIMA
UBUKORIKORI
UMUCO N'AMATEKA
IMYIDAGADURO
IBIDUKIKIJE
IBIRIBWA N'IBINYOBWA
UBWUBATSI BUSUBIRA INYUMA
UBUMENYI
SIPORO
IKORANABUHANGA
IBYAMBARWA
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.
Hagati
About 5 hours, plus printing
Amabwiriza
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1
Turns per stroke
Turns per stroke
Gupakira ikaye ya Jupyter…
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2
The rack and pinion it uses
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.
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Read US 18,759
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."
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4
Print the rack and pinion
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.
Ibikoresho by'iyi ntambwe:
Fibere ya PETG1 igiceIbikoresho bikenewe:
Imashini icapa 3D ikoresha umugozi (FDM)5
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Print the pinion
Print the pinion
The pinion, printed as step 4 describes.
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6
Print the rack
Print the rack
The rack, printed as step 4 describes.
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Build the frame
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.
Ibikoresho by'iyi ntambwe:
Igihimba cy'Igiti Gikomeye1 igice
Uruganda rw'igiti #8 x 1"1 igiceIbikoresho bikenewe:
Umucumita w'Imigororwa
Amakariso (Ikariso ry'Intoki)
Icyuma Cyivumbura Kidafite Insinga
Ibyuma Byinshi byo Gucukura
Ikusanyirizo ry'ibitorezi
Umurongo w'ipima8
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Make the spindle and floats
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.
Ibikoresho by'iyi ntambwe:
Umurongo Uzengurutse w'Icyuma Cyoroshye1 igice
Insinga z'icyuma kitagira ingese1 igice
Epoksi y'Ibice Bibiri1 igiceIbikoresho bikenewe:
Umucumita w'Ibyuma
Ikinyuranyo Gifite Impera Zizengurutse
Ipfundo Rifite Umunwa Uringaniye
Amadarubindi Asobanutse yo Kwirinda9
9
Assemble
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.
Ibikoresho by'iyi ntambwe:
Uruziga Rurambuye1 igiceIbikoresho bikenewe:
Icyuma Cyivumbura Kidafite InsingaIbyuma Byinshi byo Gucukura10
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The patent drawing
The patent drawing
US 18,759 drawing sheet, public domain (expired patent).
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11
Beat egg whites
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.
Ibikoresho by'iyi ntambwe:
Igi2 ibiceIbikoresho bikenewe:
Ibakure rinini ryo kuvanga ry'icyuma kitagira ingese
Isaha yo Guhagarika12
12
A rack that jams, slips or a float that hits the bowl
A rack that jams, slips or a float that hits the bowl
Ratchet-bar egg beater troubleshooting.
Flow
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History and honest limits
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.
Ibikoresho
8- 1 igiceUmwanya
- 1 igiceUmwanya
- 1 igiceUmwanya
- Umwanya
- Umwanya
- 1 igiceUmwanya
- 1 igiceUmwanya
- 2 ibiceUmwanya
Ibikoresho bikenewe
13- Umwanya
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Dosiye z'igishushanyo
2Iki gishushanyo gikora
Blueprint zijyanye
Izi blueprint zisangira ubumenyi — uburyo, ibikoresho cyangwa amahame
CC0 Umurenge rusange
Iyi blueprint yasohowe munsi ya CC0. Ushobora gukoporora, guhindura, gukwirakwiza no gukoresha nta kwemererwa.
Shyigikira Umuremyi ugura ibicuruzwa binyuze muri Blueprint ye Komisiyo y'Umuremyi byashyizweho n'Abacuruzi, cyangwa kora verisiyo nshya y'iyi Blueprint ukayinjiza nk'isano muri Blueprint yawe kugira ngo musangire inyungu.