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

Créé par

YourGrandma

6. octobre 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.
Intermédiaire
About 4 hours, plus printing

Consignes

1

The tray's slope

Chargement du 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.

Matériaux pour cette étape :

Filament PETGFilament PETG1 pièce

Outils nécessaires :

Imprimante 3D à filament (FDM)Imprimante 3D à filament (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.

Matériaux pour cette étape :

Planche de pinPlanche de pin1 pièce
Contenant de stockage de qualité alimentaireContenant de stockage de qualité alimentaire1 pièce
Charnière à lameCharnière à lame1 pièce
Mastic siliconeMastic silicone1 pièce
Plat à rôtirPlat à rôtir1 pièce
Vis à bois #8 x 1"Vis à bois #8 x 1"1 pièce

Outils nécessaires :

Scie égoïneScie égoïne
Perceuse sans filPerceuse sans fil
Jeu de foretsJeu de forets
Jeu de scies-clochesJeu de scies-cloches
Jeu de tournevisJeu de tournevis
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.

Matériaux pour cette étape :

Feuillard d'acier à ressortFeuillard d'acier à ressort1 pièce
Goujons de bois durGoujons de bois dur1 pièce
Colle à boisColle à bois1 pièce
Vis à bois #8 x 1"Vis à bois #8 x 1"1 pièce

Outils nécessaires :

Scie à métauxScie à métaux
Jeu de tournevisJeu de tournevis
Papier abrasifPapier abrasif
7

The patent drawing

US 9,959 drawing sheet, public domain (expired patent).
Étape 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.

Matériaux pour cette étape :

Crème liquide entièreCrème liquide entière1000 ml
GlaçonsGlaçons1 pièce
Gros sel marinGros sel marin1 pièce
EauEau1 pièce

Outils nécessaires :

Thermomètre à sonde à demeureThermomètre à sonde à demeure
ChronomètreChronomètre
Balance de cuisine numériqueBalance de cuisine numérique
Grand cul-de-poule en acier inoxydableGrand cul-de-poule en acier inoxydable
9

Posts that slip, butter that smears

Ice-drawer butter worker troubleshooting.

Flow

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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.

Matériaux

14

Outils requis

12

CC0 Domaine public

Ce blueprint est publié sous CC0. Vous êtes libre de copier, modifier, distribuer et utiliser ce travail pour tout usage, sans demander la permission.

Soutenez le Maker en achetant des produits via son Blueprint où il perçoit une Commission Maker définie par les Vendeurs, ou créez une nouvelle itération de ce Blueprint et incluez-le comme connexion dans votre propre Blueprint pour partager les revenus.

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