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Ice-Drawer Butter Worker: An Ice Box Under the Tray, a Worker With Acute Edges
YourGrandma

Criado por

YourGrandma

6. outubro 2026IS
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Ice-Drawer Butter Worker: An Ice Box Under the Tray, a Worker With Acute Edges

Smith kept the butter cold while it was worked, with ice in a drawer under the tray. Lettie A. Smith of Pineville, Bucks County, Pennsylvania, received US 9,959, dated 23 August 1853, for the "Labor-Saving Butter-Worker": a tray hinged at its back on a frame, its front resting on a sliding carriage of two notched posts so it can stand flat or inclined; a cooling drawer under it "into which ice is placed for keeping the butter in a cool and nice state while being worked"; a working lever with one end playing in a circular opening in the frame, "formed with acute angles at the sides of its working face" to break or press the butter and turn it over; a spout for the water; and a hook for steelyards to weigh the butter. This rung works out the tray's slopes, then prints the worker, its socket, the notched posts and spout, builds the frame, and works butter.
Intermediário
About 4 hours, plus printing

Instruções

1

The tray's slope

A carregar o notebook Jupyter…
2

Working butter before it

The embedded blueprint works the butter inside the churn, drawing it past fixed posts. Smith takes it out to a tray kept cold by an ice drawer, and works it by hand.
3

Read US 9,959

"The butter after being taken from the churn is placed in the tray or pan E, and there washed and worked up together in the usual manner by the worker H, until all the impurities are extracted and all the water expressed from the same; the water and all extraneous matter runs down the inclined bottom of the pan and escapes through the spout."
4

Print the parts

Print the worker head with its triangular working bar, ball end and handle socket (/uploads/blueprints/ice-drawer-butter-worker-worker.stl), the ball plate with its round opening (/uploads/blueprints/ice-drawer-butter-worker-ball-plate.stl), two notched posts with their projections (/uploads/blueprints/ice-drawer-butter-worker-notched-post.stl) and the spout (/uploads/blueprints/ice-drawer-butter-worker-spout.stl). Print the worker on its flat working face. Print in PETG at 0.2 mm layers, 30 % infill, 4 walls; wash before first use.

Materiais para este passo:

Filamento PETGFilamento PETG1 peça

Ferramentas necessárias:

Impressora 3D de filamento (FDM)Impressora 3D de filamento (FDM)
5

Frame, tray and ice drawer

Build a pine frame about 320 by 220 mm and 260 mm high, with a cross bar across its front and runners below the top. Use a shallow rectangular food-grade container as the tray; hinge its back end to the frame, drill a 16 mm hole at that low end and seal the spout in it with food-safe silicone. Slide a roasting pan onto the runners under the tray as the ice drawer.

Materiais para este passo:

Tábua de pinhoTábua de pinho1 peça
Recipiente de armazenamento de grau alimentarRecipiente de armazenamento de grau alimentar1 peça
Dobradiça de livroDobradiça de livro1 peça
Vedante de siliconeVedante de silicone1 peça
AssadeiraAssadeira1 peça
Parafuso para madeira n.º 8 x 1"Parafuso para madeira n.º 8 x 1"1 peça

Ferramentas necessárias:

SerroteSerrote
Berbequim sem fiosBerbequim sem fios
Jogo de brocasJogo de brocas
Conjunto de serras-copoConjunto de serras-copo
Conjunto de chaves de fendasConjunto de chaves de fendas
6

Posts, springs and worker

Hang the two notched posts on the front cross bar so the tray's front rests on their projections, and screw a strip of spring steel to the frame against each post to keep it in its notch. Screw the ball plate to the back of the frame above the tray's hinge, snap the worker's ball into it, and glue a 20 mm dowel into its socket as the handle, long enough to reach over the tray's front.

Materiais para este passo:

Fita de aço-molaFita de aço-mola1 peça
Cavilhas de madeira duraCavilhas de madeira dura1 peça
Cola de madeiraCola de madeira1 peça
Parafuso para madeira n.º 8 x 1"Parafuso para madeira n.º 8 x 1"1 peça

Ferramentas necessárias:

Serra de arco para metaisSerra de arco para metais
Conjunto de chaves de fendasConjunto de chaves de fendas
LixaLixa
7

The patent drawing

US 9,959 drawing sheet, public domain (expired patent).
Passo 7 - Image 1
8

Churn, then work the butter cold

Let the heavy cream stand until it reaches about 15 °C, checked with the thermometer. Churn 1 litre in any churn until the butter comes, and drain it. Fill the drawer with ice. Set the tray flat, put in the butter and cold water and press and turn it with the worker's edges; raise the tray's front a notch or two so the water runs out of the spout. Repeat with fresh water until it runs clear, work in a pinch of salt and weigh the butter.

Materiais para este passo:

Natas para baterNatas para bater1000 ml
Cubos de geloCubos de gelo1 peça
Sal marinho grossoSal marinho grosso1 peça
ÁguaÁgua1 peça

Ferramentas necessárias:

Termómetro de sonda permanenteTermómetro de sonda permanente
CronómetroCronómetro
Balança digital de cozinhaBalança digital de cozinha
Taça grande de aço inoxidávelTaça grande de aço inoxidável
9

Posts that slip, butter that smears

Ice-drawer butter worker troubleshooting.

Flow

Loading...
10

History and honest limits

**Lettie A. Smith** of Pineville, Bucks County, Pennsylvania, received US 9,959, dated 23 August 1853, for the "Labor-Saving Butter-Worker." The specification calls the tray both E and F, and E is also the cross bar the notches rest on. The claims are the cooling drawer or ice box G combined with the butter tray, and the working lever formed with acute angles at the sides of its working face; Smith did not claim the working lever with a tray in general. **Honest limits.** A container, a roasting pan, pine and printed parts stand in for the original; we weigh on a kitchen scale, not steelyards. FDM prints hold food in their layer lines, so wash well and replace when worn. Your weights are the result.

Materiais

14

Ferramentas necessárias

12

CC0 Domínio Público

Este blueprint é liberado sob CC0. Você é livre para copiar, modificar, distribuir e usar este trabalho para qualquer finalidade, sem pedir permissão.

Apoie o Maker comprando produtos através do Blueprint, onde ele ganha uma Comissão Maker definida pelos vendedores, ou crie uma nova versão deste Blueprint e inclua-o como conexão no seu próprio Blueprint para compartilhar receita.

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