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Spiral-Vane Spring-Agitator Churn: Vanes That Snap Springs on the Bottom
Martin

Yaremwe na

Martin

6. Ukwakira 2026NO
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Spiral-Vane Spring-Agitator Churn: Vanes That Snap Springs on the Bottom

Watson wanted "the lower stratum of the cream" kept "in brisk motion" while a dasher lifted the rest. Peter H. Watson of Rockford, Illinois, assignor to Nathaniel S. Wheeler of Painesville, Ohio, received US 5,573, dated 16 May 1848, for a churn with a rotary spiral dasher — flat vanes fixed between arms ninety degrees apart, so they twist into spirals — over "elastic vibrating agitators": a removable cross on the bottom carrying curved springs that the vanes press down and release. A tube in the lid lets air in and a tube in the side lets it out, kept circulating by the dasher. He set the churn obliquely on a frame to turn the winch. This rung counts the springs' snaps, then prints the vane spiders and the spring cross, twists flat vanes between them, and makes butter.
Hejuru
About 5 hours, plus printing

Amabwiriza

1

Springs and vanes

Gupakira ikaye ya Jupyter…
2

A spiral that lifts the cream before it

The embedded blueprint lifts cream with an Archimedean screw in a tube. Watson's twisted vanes lift it in the open churn and let it fall through the air.
3

Read US 5,573

"On the upper side of these arms a series of curved elastic pieces of wood or metal are secured by one end, the end projecting from the arm at right angles or nearly so and inclining upward; as the vanes of the dasher revolve in the direction indicated by the arrows Figs. 2 and 3 they depress the springs f f f in its passing over them, but the moment the vane has turned far enough to release the spring the latter flies up again to its former position."
4

Print the parts

Print two vane spiders, the agitator cross with its twelve tongues and the crank arm. Print the cross in PETG if you have it: its thin tongues must flex and spring back. Print in PETG at 0.2 mm layers, 30 % infill, 4 walls; wash before first use.

Ibikoresho by'iyi ntambwe:

Fibere ya PETGFibere ya PETG1 igice

Ibikoresho bikenewe:

Imashini icapa 3D ikoresha umugozi (FDM)Imashini icapa 3D ikoresha umugozi (FDM)
5

Print the spider

The spider, printed as step 4 describes.
Dosiye y'IgishushanyoSTLCC0 - Free
6

Print the agitator

The agitator, printed as step 4 describes.
Dosiye y'IgishushanyoSTLCC0 - Free
7

Print the crank arm

The crank arm, printed as step 4 describes.
Dosiye y'IgishushanyoSTLCC0 - Free
8

Twist the vanes

Glue the spiders on a 10 mm square hardwood shaft 110 mm apart, the upper turned 90° to the lower. Cut four strips of thin stainless sheet about 60 × 130 mm, deburr them, and seat each in a lower spider's slot and the next upper slot round, so it twists a quarter turn into a spiral, as his did. Glue them in.

Ibikoresho by'iyi ntambwe:

Udukoni tw'ibiti bikomeyeUdukoni tw'ibiti bikomeye1 igice
Urupapuro rw'icyuma kitagira ingese - 304Urupapuro rw'icyuma kitagira ingese - 3041 igice
Epoksi y'Ibice BibiriEpoksi y'Ibice Bibiri1 igice

Ibikoresho bikenewe:

Ibyuma bikata ibyuma bisanzweIbyuma bikata ibyuma bisanzwe
Igikoresho cyo gukuraho ibisigazwa ku mperaIgikoresho cyo gukuraho ibisigazwa ku mpera
IbifataIbifata
9

The tub

Set the agitator cross on the floor of a food-grade bucket, the shaft's foot through its centre hole into a drilled seat. Drill the lid at the centre for the shaft, and fit a short tube in the lid and another near the top of the side for the air. Glue the crank arm and a dowel handle on the shaft. Prop the bucket at an angle on a pine frame for cranking.

Ibikoresho by'iyi ntambwe:

Indobo ya Litiro 20Indobo ya Litiro 201 igice
Ikibaho cy'igiti cya pinusiIkibaho cy'igiti cya pinusi1 igice
Uruganda rw'igiti #8 x 1"Uruganda rw'igiti #8 x 1"1 igice
Ikinyabutabire cy'IbitiIkinyabutabire cy'Ibiti1 igice

Ibikoresho bikenewe:

Icyuma Cyivumbura Kidafite InsingaIcyuma Cyivumbura Kidafite Insinga
Ibyuma Byinshi byo GucukuraIbyuma Byinshi byo Gucukura
Umucumita w'IntokiUmucumita w'Intoki
Ikusanyirizo ry'ibitoreziIkusanyirizo ry'ibitorezi
10

The patent drawing

US 5,573 drawing sheet, public domain (expired patent).
Intambwe 10 - Image 1
11

Crank and make butter

Let the heavy cream stand until it reaches about 15 °C, checked with the thermometer. Pour in 1.5 litres. Crank the way the springs incline, so the vanes press them down and let them fly up; time until the butter comes. Lift out the cross to gather the butter with the dasher alone, as he allowed. Pour off the buttermilk, add cold water, churn a little and pour off again until it runs clear; work in a pinch of salt and weigh the butter.

Ibikoresho by'iyi ntambwe:

Igice cy'ibinure cy'amataIgice cy'ibinure cy'amata1500 ml
Umunyu w'inyanja muniniUmunyu w'inyanja munini1 igice
AmaziAmazi1 igice

Ibikoresho bikenewe:

Igipima ubushyuhe gifite uruti rusigara mu kintuIgipima ubushyuhe gifite uruti rusigara mu kintu
Isaha yo GuhagarikaIsaha yo Guhagarika
Iminzani ya Digitale yo mu GikoniIminzani ya Digitale yo mu Gikoni
Ibakure rinini ryo kuvanga ry'icyuma kitagira ingeseIbakure rinini ryo kuvanga ry'icyuma kitagira ingese
12

Springs that break, vanes that jam

Spiral-vane spring-agitator churn troubleshooting.

Flow

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13

History and honest limits

**Peter H. Watson** of Rockford, Winnebago County, Illinois, received US 5,573, dated 16 May 1848, assigned to Nathaniel S. Wheeler of Painesville, Ohio. The dasher had eight horizontal arms; each vane could be "one broad piece or of several narrow pieces"; the agitators could be removed once the butter was separated. He claimed "the combination of the elastic vibrating agitator with the rotary spiral dasher." **Honest limits.** A bucket, printed spiders and a printed spring cross stand in for his tub and wooden or metal springs; our dasher has four vanes on two spiders. FDM prints hold food in their layer lines, so wash well and replace when worn. Your times and weights are the result.

Ibikoresho

11

Ibikoresho bikenewe

12

Dosiye z'igishushanyo

3

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.

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