LIST
FEGURÐ OG VELLÍÐAN
HANDVERK
MENNING OG SAGA
SKEMMTUN
UMHVERFI
MATUR OG DRYKKUR
ÖFUGVERKFRÆÐI
VÍSINDI
ÍÞRÓTTIR
TÆKNI
KLÆÐANLEG TÆKNI
Glass Wool
Games Slayter · Public domain (expired patent)
Emma

Búin til af

Emma

22. september 2026SE
46
0
0
0
0

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.
Byrjandi
2 hours

Leiðbeiningar

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);
}

Efni fyrir þetta skref:

DS18B20 hitanemiDS18B20 hitanemi3 stykki
ViðnámasettViðnámasett1 sett
Dupont-tengivírasett (karl-kvenkyns)Dupont-tengivírasett (karl-kvenkyns)1 sett

Nauðsynleg verkfæri:

Arduino Uno R3Arduino Uno R3
TengibrettiTengibretti
USB-B-snúraUSB-B-snúra
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.

Efni fyrir þetta skref:

Glerkrukka með lokiGlerkrukka með loki3 stykki

Nauðsynleg verkfæri:

HleðsluborHleðslubor
BorasettBorasett
MálningarlímbandMálningarlímband
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.

Efni fyrir þetta skref:

HreinsibómullHreinsibómull1 pakki

Nauðsynleg verkfæri:

Vinnuhanskar úr leðriVinnuhanskar úr leðri
RykgrímaRykgríma
Tær öryggisglerauguTær öryggisgleraugu
SkæriSkæri
MálningarlímbandMálningarlímband
GlerullareinangrunGlerullareinangrun
PlastpokarPlastpokar
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.

Nauðsynleg verkfæri:

Rafmagnsketill úr gleriRafmagnsketill úr gleri
MæliglasMæliglas
5

Fit the curves

Hleð Jupyter-vinnubók…
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.
Skref 6 - Image 1

Efni

5

Nauðsynleg verkfæri

14

Tengd Blueprint

Þessi blueprint deila þekkingu — tækni, efni eða meginreglur

Extruded Polystyrene Foam

Extruded Polystyrene Foam

eftir EmmaSE

Plastgerð

48
0
0
0
0
0

CC0 opinbert ríki

Þessi teikning er gefin út undir CC0. Þér er frjálst að afrita, breyta, dreifa og nota þetta verk í hvaða tilgangi sem er, án þess að biðja um leyfi.

Studdu smiðinn með því að kaupa vörur í gegnum teikningu hans þar sem hann fær þóknun smiða sem seljendur ákvarða, eða búðu til nýja endurskoðun á þessari teikningu og tengdu hana sem tengingu í þinni eigin teikningu til að deila tekjum.

Umræða

(0)

Skrá inn til að taka þátt í umræðunni

Hleður athugasemdum...