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Glass Wool
Games Slayter · Public domain (expired patent)
Emma

Nilikha ni

Emma

22. Setyembre 2026SE
45
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Glass Wool

Glass wool was made before the 1930s by blowing steam at a falling thread of molten glass, but by the time the glass reached the blast it had cooled too far to draw really fine fibres. Games Slayter at Owens-Illinois brought the blast right up to the bushing the glass leaves the furnace through, while it was still at furnace heat. **US 2,133,235**, "Method and apparatus for making glass wool", Slayter, assigned to Owens-Illinois, filed 11. November 1933, granted 11. October 1938. Its FIGURE 1 (the picture above) shows the furnace, the bushing, the steam blast and the wool piling onto a conveyor. The same work led to Owens-Corning Fiberglas in 1938. **You measure what it is for**: three jars of hot water - bare, in glass wool, in cotton wool - logged by an Arduino, and the cooling curves turned into heat-loss figures.
Baguhan
2 hours

Mga Tagubilin

1

Wire the logger

Probes' red to 5V, black to GND, data (yellow) together to D2, with a 4.7 kΩ resistor from D2 to 5V. Install the OneWire and DallasTemperature libraries. Warm each probe in your hand in turn to learn which index is which.
three_jar_cooling_logger.inocpp
// Three-jar cooling logger - batch 98, US 2,133,235
// Three DS18B20 probes share one data wire on D2 with a 4.7 k pull-up to 5V.
// Prints one CSV line every 30 s: seconds, then the three temperatures in C.
#include <OneWire.h>
#include <DallasTemperature.h>

OneWire bus(2);
DallasTemperature sensors(&bus);
const unsigned long PERIOD_MS = 30000;
unsigned long t0;

void setup() {
  Serial.begin(115200);
  sensors.begin();
  Serial.print(F("# sensors found: "));
  Serial.println(sensors.getDeviceCount());
  Serial.println(F("t_s,probe0_C,probe1_C,probe2_C"));
  t0 = millis();
}

void loop() {
  sensors.requestTemperatures();
  Serial.print((millis() - t0) / 1000);
  for (uint8_t i = 0; i < 3; i++) {
    Serial.print(',');
    Serial.print(sensors.getTempCByIndex(i), 2);
  }
  Serial.println();
  delay(PERIOD_MS);
}

Mga materyales para sa hakbang na ito:

Sensor ng temperatura na DS18B20Sensor ng temperatura na DS18B203 piraso
Kit ng RisistorKit ng Risistor1 kit
Set ng kableng Dupont (lalaki-babae)Set ng kableng Dupont (lalaki-babae)1 set

Mga kailangang kasangkapan:

Arduino Uno R3Arduino Uno R3
Breadboard - ClassicBreadboard - Classic
SparkFun Cerberus USB Cable - 1.8 meterSparkFun Cerberus USB Cable - 1.8 meter
2

Prepare three jars

Drill a 7 mm hole in each of three identical lids. Push a probe through each so its tip sits mid-jar. Seal the hole with tape.

Mga materyales para sa hakbang na ito:

Garapong Salamin na May TakipGarapong Salamin na May Takip3 piraso
Teyp na pantakipTeyp na pantakip1 rolyo

Mga kailangang kasangkapan:

Walang-Kableng BarenaWalang-Kableng Barena
Hanay ng Talim ng BarenaHanay ng Talim ng Barena
3

Wrap two of them

Gloves, long sleeves, mask, glasses. Put glass wool inside a plastic bag, then wrap jar 2 in it 30 mm thick all round and under, and tape. Wrap jar 3 the same way in cotton wool. Leave jar 1 bare.

Mga materyales para sa hakbang na ito:

Insulasyong glass woolInsulasyong glass wool1 rolyo
Bulak na sumisipsipBulak na sumisipsip1 pakete
Mga plastik na supotMga plastik na supot4 piraso
Teyp na pantakipTeyp na pantakip1 rolyo

Mga kailangang kasangkapan:

Guwantes na Katad PangtrabahoGuwantes na Katad Pangtrabaho
Maskara Laban sa AlikabokMaskara Laban sa Alikabok
Malinaw na Salaming PangkaligtasanMalinaw na Salaming Pangkaligtasan
GuntingGunting
4

Fill and log

Boil water. Pour 500 ml into each jar, one after another, and close the lids. Start the serial monitor and log for 90 minutes. Note the room temperature.

Mga kailangang kasangkapan:

Electric kettle - salaminElectric kettle - salamin
Silindrong may sukatanSilindrong may sukatan
5

Fit the curves

Naglo-load ng Jupyter notebook…
6

History & Context

**What the patent specifies:** a steam blast applied at the bushing itself, so the glass stream is drawn while still at furnace temperature, giving very fine wool. **Modern build (derived):** commercial glass-wool insulation, handled wrapped. Continuous glass filament for textiles and reinforcement followed from the same laboratory. Its limits: loose fibres irritate skin, eyes and lungs, so it is always handled covered, and like any fibrous insulation it loses most of its value when wet or compressed.
Hakbang 6 - Image 1

Mga Materyales

8

Mga Kinakailangang Kasangkapan

11

Kaugnay na Blueprint

Ang mga blueprint na ito ay nagbabahagi ng kaalaman — mga teknik, materyales, o prinsipyo

Extruded Polystyrene Foam

Extruded Polystyrene Foam

ni EmmaSE

Paggawa ng Plastik

47
0
0
0
0
0

CC0 Pampublikong Domain

Ang blueprint na ito ay inilabas sa ilalim ng CC0. Malaya kang kumopya, magbago, mamahagi, at gumamit nang walang pahintulot.

Suportahan ang Maker sa pamamagitan ng pagbili ng mga produkto sa kanilang Blueprint Komisyon ng Maker itinakda ng mga Vendor, o lumikha ng bagong bersyon ng Blueprint na ito at isama bilang koneksyon sa iyong Blueprint upang ibahagi ang kita.

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