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Wire-Coil Potato Masher: A Flat Spiral of Wire on Five Braces
Myron H. Monroe, Rochester, New York · Public domain (expired patent)
Forge

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6. ottobre 2026NO
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Wire-Coil Potato Masher: A Flat Spiral of Wire on Five Braces

A solid masher has nowhere for the potato to go but sideways. Myron H. Monroe of Rochester, New York, received US 73,743, dated 28 January 1868, for an article for mashing potatoes or other vegetables made of tinned or plated wire: a coil "leaving a space between the wires ... for the purpose of allowing the vegetables to pass through the coil when used," with five braces soldered to it — one at the centre and four round the outer circle — brought together into a handle. This rung works out the wire needed, then bends the coil and braces from stainless wire, prints the handle, and mashes a pan of potatoes.
Intermedio
About 2 hours, plus printing

Istruzioni

1

Wire for the coil

Caricamento del notebook Jupyter…
2

Wire kitchen tools before it

The embedded blueprint beats eggs with wire floats. Monroe bends one wire into a flat coil to mash through.
3

Read US 73,743

"I construct my vegetable-masher of tinned or plated wire, of suitable size, forming a coil, a, of sufficient size, leaving a space between the wires, as seen in drawing, at a, for the purpose of allowing the vegetables to pass through the coil when used."
4

Bend the coil

From 3 mm stainless wire, bend a flat spiral 3.5 turns from 16 mm across at the centre, about 9 mm between turns, leaving both ends long.

Materiali per questo passaggio:

Filo di acciaio inoxFilo di acciaio inox1 pezzo

Strumenti necessari:

Pinze a becchi tondiPinze a becchi tondi
Pinze a becchi piattiPinze a becchi piatti
Morsa da bancoMorsa da banco
Guanti da lavoro in pelleGuanti da lavoro in pelle
5

Bend the braces

Bend the two long ends up at right angles as two braces. Add a centre wire and two more to the outer turn, wrapping each round the coil, so five braces meet 150 mm above it.

Materiali per questo passaggio:

Filo di acciaio inoxFilo di acciaio inox1 pezzo

Strumenti necessari:

Pinze a becchi piattiPinze a becchi piatti
Seghetto per metalliSeghetto per metalli
Guanti da lavoro in pelleGuanti da lavoro in pelle
Occhiali di sicurezza trasparentiOcchiali di sicurezza trasparenti
6

Print and fit the handle

Print the handle (/uploads/blueprints/wire-coil-potato-masher-handle.stl). Print in PETG at 0.2 mm layers, 30 % infill, 4 walls; wash before first use. Twist the five ends together, file them, and epoxy them into the handle's bore.

Materiali per questo passaggio:

Filamento PETGFilamento PETG1 pezzo
Resina epossidica bicomponenteResina epossidica bicomponente1 pezzo

Strumenti necessari:

Stampante 3D a filamento (FDM)Stampante 3D a filamento (FDM)
Lime (lima a mano)Lime (lima a mano)
7

The build in 3D

FreeCAD model of this build, not of the patent: the flat 3.5-turn coil of 3 mm wire, a centre brace and four outer braces meeting 150 mm up, and the printed handle.
File di designBLENDCC0 - Free
Scarica modello
8

Cook and mash

Boil 500 g of potatoes, peeled and quartered, in salted water for about 20 minutes until a knife slides in; drain. Mash them with the coil and time it to no lumps.
Passo 8 - Image 1

Materiali per questo passaggio:

PatatePatate1 pezzo
AcquaAcqua1 pezzo

Strumenti necessari:

Casseruola altaCasseruola alta
Bilancia digitale da cucinaBilancia digitale da cucina
CronometroCronometro
9

A coil that bends, braces that loosen

Wire-coil potato masher troubleshooting.

Flow

Loading...
10

History and honest limits

**Myron H. Monroe** of Rochester, New York, received US 73,743, dated 28 January 1868. Two of the braces are the ends of the coil bent at right angles; one is at the centre and the others are soldered at equal distances round the outer circle; their upper ends are joined by solder and set in the handle. He claimed the coil, braces and handle in combination. **Honest limits.** Wrapped stainless wire stands in for his soldered tinned wire, and a printed handle for his. Your times are the result.

Materiali

5

Strumenti richiesti

11

File di progetto

1

Questo progetto realizza

Thumbnail
Segnaposto

Schiacciapatate

Free

127
0

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Questi blueprint condividono conoscenze — tecniche, materiali o principi

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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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