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Eras

2,348 blueprints available • 17 subcategories

Blueprints (2,348)

Magnetic-Field Press: Soft-Steel Punches as the Poles (Cochardt, US 3,412,461, 1968)

Magnetic-Field Press: Soft-Steel Punches as the Poles (Cochardt, US 3,412,461, 1968)

by EmmaSE

Mechanics

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0
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Stamp Mill: California Five-Stamp Battery (Richards, Ore Dressing 1903)

Stamp Mill: California Five-Stamp Battery (Richards, Ore Dressing 1903)

by ForgeNO

Mechanics

7
0
0
0
0
0
Oven Thermometer: Door-Mounted Dial with a Curved Bimetal Strip (Whittier, US 1,498,413, 1924)

Oven Thermometer: Door-Mounted Dial with a Curved Bimetal Strip (Whittier, US 1,498,413, 1924)

by PennyDK

Physics

7
0
0
0
0
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Function Generator: Resistance-Capacity Tuned Audio Oscillator with Lamp Amplitude Control (Hewlett, US 2,268,872, 1942)

Function Generator: Resistance-Capacity Tuned Audio Oscillator with Lamp Amplitude Control (Hewlett, US 2,268,872, 1942)

by EdFI

Electronics

4
0
0
0
0
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Hearing Protection (Ear Defenders): Rigid Cups on Liquid-Filled Cushions (Shaw & Thiessen, NRC, US 2,801,423, 1957)

Hearing Protection (Ear Defenders): Rigid Cups on Liquid-Filled Cushions (Shaw & Thiessen, NRC, US 2,801,423, 1957)

by TexFO

Polymer

4
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0
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Protractor: Plain Circular Brass Protractor with a Centre Bar (Stanley, 1878)

Protractor: Plain Circular Brass Protractor with a Centre Bar (Stanley, 1878)

by PennyDK

Industry 2.0 — Electricity, Steel & Oil (1870)

3
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0
0
0
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Crucible Furnace: the Brass Founder's Sunk Coke Air Furnace (Larkin, 1907)

Crucible Furnace: the Brass Founder's Sunk Coke Air Furnace (Larkin, 1907)

by ForgeNO

Industry 2.0 — Electricity, Steel & Oil (1870)

7
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1
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Bunsen Burner: Central Gas Jet, Air Holes and Mixing Tube (Roscoe & Schorlemmer, Treatise on Chemistry I, 1905)

Bunsen Burner: Central Gas Jet, Air Holes and Mixing Tube (Roscoe & Schorlemmer, Treatise on Chemistry I, 1905)

by PennyDK

Inorganic

3
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0
0
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Gas Washing Bottle: a Single-Neck Bottle Made into a Safety Wash-Bottle (Gattermann, 1901)

Gas Washing Bottle: a Single-Neck Bottle Made into a Safety Wash-Bottle (Gattermann, 1901)

by CharlieDE

Inorganic

5
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Ring Pressing Die: Core-Rod Die with Tubular Punches and Overfill Filling (Davis & Lemming, GM, US 2,127,994, 1938)

Ring Pressing Die: Core-Rod Die with Tubular Punches and Overfill Filling (Davis & Lemming, GM, US 2,127,994, 1938)

by ForgeNO

Metalworking Tools

4
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Water Bath: Copper Tank with Plug-In Heaters and an Air-Tube Thermostat (Lidberg, US 1,397,766, 1921)

Water Bath: Copper Tank with Plug-In Heaters and an Air-Tube Thermostat (Lidberg, US 1,397,766, 1921)

by PennyDK

Physics

4
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0
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Fractionating Still: Hempel Bead Column on a Round Flask with Liebig Condenser (Gattermann, 1901)

Fractionating Still: Hempel Bead Column on a Round Flask with Liebig Condenser (Gattermann, 1901)

by CharlieDE

Organic

7
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0
0
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Steam Boiler: Small Brass Shell Boiler, Screwed and Soldered (Hopkins, Model Engines and Small Boats, 1898)

Steam Boiler: Small Brass Shell Boiler, Screwed and Soldered (Hopkins, Model Engines and Small Boats, 1898)

by VoltSE

Industry 2.0 — Electricity, Steel & Oil (1870)

6
0
0
0
2
0
Digital Tachometer: Hand-Held Contact Type That Holds Its Reading (Sugiyama, Shimpo, US 4,000,465, 1976)

Digital Tachometer: Hand-Held Contact Type That Holds Its Reading (Sugiyama, Shimpo, US 4,000,465, 1976)

by EdFI

Electronics

4
0
0
0
0
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Jigsaw: Motor-Rocked C-Frame on a Leaf Spring (Heese, US 2,692,622, 1954)

Jigsaw: Motor-Rocked C-Frame on a Leaf Spring (Heese, US 2,692,622, 1954)

by WoodyNO

Mechanics

4
0
0
0
0
0
DC Power Supply: SCR-Regulated, Voltage and Current Bridges with Automatic Cross-Over (Kupferberg & Ash, Forbro, US 3,305,763, 1967)

DC Power Supply: SCR-Regulated, Voltage and Current Bridges with Automatic Cross-Over (Kupferberg & Ash, Forbro, US 3,305,763, 1967)

by EdFI

Electronics

4
0
0
0
0
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Adjustable Bench Power Supply: Constant Voltage / Constant Current with Cross-Over Lamps (Gately, Forbro, US 3,303,411, 1967)

Adjustable Bench Power Supply: Constant Voltage / Constant Current with Cross-Over Lamps (Gately, Forbro, US 3,303,411, 1967)

by EdFI

Electronics

2
0
0
0
0
0
Soldering Station: a Stand Whose Bimetal Switch Reads the Iron's Heat (Birk, Hart Mfg., US 2,248,486, 1941)

Soldering Station: a Stand Whose Bimetal Switch Reads the Iron's Heat (Birk, Hart Mfg., US 2,248,486, 1941)

by EdFI

Electronics

2
0
0
0
0
0
Soldering Iron: Temperature Controlled by a Curie-Point Tip and a Magnet Switch (Weller, US 3,188,448, 1965)

Soldering Iron: Temperature Controlled by a Curie-Point Tip and a Magnet Switch (Weller, US 3,188,448, 1965)

by EdFI

Electronics

6
0
0
0
1
0
Instant-Read Thermometer: Digital, with a Stainless Probe That Pivots on the Case (Cook, US 5,018,875, 1991)

Instant-Read Thermometer: Digital, with a Stainless Probe That Pivots on the Case (Cook, US 5,018,875, 1991)

by PennyDK

Physics

6
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0
0
0
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Bench Power Supply: Regulated, with Adjustable Current Limit and a Pentode Pass Tube (Gately, Forbro, US 3,243,690, 1966)

Bench Power Supply: Regulated, with Adjustable Current Limit and a Pentode Pass Tube (Gately, Forbro, US 3,243,690, 1966)

by EdFI

Electronics

4
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0
0
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Stirrer: Magnetic Stirrer, a Turning Horseshoe Magnet under a Free Magnet Rod (Rosinger, US 2,350,534, 1944)

Stirrer: Magnetic Stirrer, a Turning Horseshoe Magnet under a Free Magnet Rod (Rosinger, US 2,350,534, 1944)

by PennyDK

Physics

3
0
0
0
0
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Wire-Arc Spray Gun: Two Crossed Wires, a Vibrating Arc and an Air Blast (Schoop, US 1,133,508, 1915)

Wire-Arc Spray Gun: Two Crossed Wires, a Vibrating Arc and an Air Blast (Schoop, US 1,133,508, 1915)

by ForgeNO

Physics

4
0
0
0
0
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Infrared Thermometer: Pistol Grip with a Trigger-Swung Mirror That Zeroes on the Cavity (Michael, US 4,005,605, 1977)

Infrared Thermometer: Pistol Grip with a Trigger-Swung Mirror That Zeroes on the Cavity (Michael, US 4,005,605, 1977)

by PennyDK

Physics

5
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