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Propeller-and-Spoon Egg Beater: Spoon Arms Break the Swirl
Emma

Creato da

Emma

6. ottobre 2026SE
30
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Propeller-and-Spoon Egg Beater: Spoon Arms Break the Swirl

A turning beater soon sets the whole liquid circling with it. William T. Nicholson of Providence, Rhode Island, received US 32,886, dated 23 July 1861, for an egg beater: a crank wheel with bevelled face teeth turns a pinion and a pair of propeller blades; under the pinion a disk with an elliptic groove rocks two arms ending "in the form of a spoon bill's beak," so "the circling currents occasioned by the blades of the propeller will be broken at regular intervals." It clamps into a socket on a table or lifts out for use by hand. This rung works out the stroke rates, then prints the crown wheel, pinion, cam and propeller, builds the frame and arms, and times a beating.
Avanzato
About 5 hours, plus printing

Istruzioni

1

Stroke rates

Caricamento del notebook Jupyter…
2

A crank wheel and pinion before it

The embedded blueprint drives two beaters off one wheel. Nicholson drives a propeller and lets a cam rock two spoon arms against its swirl.
3

Read US 32,886

"To the under side of the pinion E is secured the disk H (Fig. 5,) its lower surface being furnished with an elliptic groove or channel I. Two arms K K pivoted to the handle at c and d extend to the bottom of the propeller blade their lower extremities being in the form of a spoon bill's beak. A projecting ear e, e on each arm is inserted in the elliptic groove I whereby as the propeller shaft F is rotated to which the disk is attached a reciprocating motion is given to each of the arms."
4

Print the gears, cam and propeller

Print the 48-tooth crown wheel (/uploads/blueprints/propeller-spoon-egg-beater-crown-wheel.stl), the 12-tooth pinion (/uploads/blueprints/propeller-spoon-egg-beater-pinion.stl), the cam disk with its elliptic groove (/uploads/blueprints/propeller-spoon-egg-beater-cam.stl) and the propeller (/uploads/blueprints/propeller-spoon-egg-beater-propeller.stl). Print in PETG at 0.2 mm layers, 30 % infill, 4 walls.

Materiali per questo passaggio:

Filamento PETGFilamento PETG1 pezzo

Strumenti necessari:

Stampante 3D a filamento (FDM)Stampante 3D a filamento (FDM)
5

Frame and wheel

Cut a plywood handle frame. Bolt the crown wheel to it on an M5 screw with a crank near its rim, and drill a bearing for the propeller shaft so the pinion meshes the wheel's face.

Materiali per questo passaggio:

Pannello di compensatoPannello di compensato1 pezzo
Viti da metalloViti da metallo1 pezzo
Rondella pianaRondella piana1 pezzo
Dado esagonaleDado esagonale1 pezzo

Strumenti necessari:

Sega da traforoSega da traforo
Trapano a batteriaTrapano a batteria
Serie di punte da trapanoSerie di punte da trapano
Chiave regolabile a rullinoChiave regolabile a rullino
6

Shaft, cam and propeller

Epoxy the pinion, then the cam under it, on a 5 mm rod through the bearing, and the propeller on the rod's foot.

Materiali per questo passaggio:

Tondo di acciaio dolceTondo di acciaio dolce1 pezzo
Resina epossidica bicomponenteResina epossidica bicomponente1 pezzo

Strumenti necessari:

Seghetto per metalliSeghetto per metalli
Morsa da bancoMorsa da banco
7

Spoon arms

Bend two arms of stainless wire with a spoon-shaped flat at the foot. Pivot each on a screw in the frame either side of the shaft, and bend a short ear on each into the cam's groove.

Materiali per questo passaggio:

Filo di acciaio inoxFilo di acciaio inox1 pezzo
Vite da legno #8 x 1"Vite da legno #8 x 1"1 pezzo

Strumenti necessari:

Pinze a becchi tondiPinze a becchi tondi
Pinze a becchi piattiPinze a becchi piatti
Set di cacciavitiSet di cacciaviti
Calibro digitale da 6 polliciCalibro digitale da 6 pollici
8

The patent drawing

US 32,886 drawing sheet, public domain (expired patent).
Passo 8 - Image 1
9

With and without the arms

Beat two egg whites with the arms in the groove and time them to stiff peaks; lift the ears out and repeat with the propeller alone.
Passo 9 - Image 1

Materiali per questo passaggio:

UovoUovo4 pezzi

Strumenti necessari:

Grande ciotola da impasto in acciaio inossidabileGrande ciotola da impasto in acciaio inossidabile
CronometroCronometro
10

Arms that jam, a cam that throws them

Propeller-and-spoon egg beater troubleshooting.

Flow

Loading...
11

History and honest limits

**William T. Nicholson** of Providence, Rhode Island, received US 32,886, dated 23 July 1861. The grooved disk is set with its longest diameter in the same plane as the propeller blades, so the arms clear the blades; the socket or chair fixes to a table by spurs and one wood screw, its inclined sides grasping the handle, which can be lifted out for use by hand. He claimed the reciprocating beaters combined with a revolving beater. **Honest limits.** FDM prints hold food in their layer lines, so wash well and replace when worn. A crown wheel and spur pinion stand in for his bevelled wheel, and a plywood frame for his handle and socket. Your times are the result.

Materiali

10

Strumenti richiesti

13

Questo progetto realizza

CC0 Pubblico dominio

Questo progetto è rilasciato sotto CC0. Sei libero di copiare, modificare, distribuire e utilizzare quest'opera per qualsiasi scopo, senza chiedere permesso.

Supporta il Maker acquistando prodotti tramite il suo progetto dove guadagna una Commissione Maker stabilita dai venditori, oppure crea una nuova iterazione di questo progetto e includilo come collegamento nel tuo progetto per condividere i ricavi.

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