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- Bendix Truck Brake Exhibit, Ford Exhibition Building, Century of Progress International Exposition, Chicago, Illinois, 1934 - Chicago's 1933-34 Century of Progress Exposition used the theme of progress to encourage optimism during the Depression. The Ford Exhibition Building, which sat on eleven acres at the fair and featured industrial demonstrations and informative displays like this, became the most talked-about exhibit of 1934.
- 1934
- Collections - Artifact
Bendix Truck Brake Exhibit, Ford Exhibition Building, Century of Progress International Exposition, Chicago, Illinois, 1934
Chicago's 1933-34 Century of Progress Exposition used the theme of progress to encourage optimism during the Depression. The Ford Exhibition Building, which sat on eleven acres at the fair and featured industrial demonstrations and informative displays like this, became the most talked-about exhibit of 1934.
- "Plant of the Westinghouse Air-Brake Co., Wilmerding, Pennsylvania," 1910 - From 1895 to 1924, the Detroit Publishing Company was one of the major image publishers in the world. It had a wide-ranging stock of original photographs, many of which were colored using the company's patented "Phostint" process. Popular "Phostint" postcards, the Detroit Publishing Company claimed, were delicately "executed in Nature's Coloring" to be truthful, tasteful, beautiful, and educational.
- circa 1905
- Collections - Artifact
"Plant of the Westinghouse Air-Brake Co., Wilmerding, Pennsylvania," 1910
From 1895 to 1924, the Detroit Publishing Company was one of the major image publishers in the world. It had a wide-ranging stock of original photographs, many of which were colored using the company's patented "Phostint" process. Popular "Phostint" postcards, the Detroit Publishing Company claimed, were delicately "executed in Nature's Coloring" to be truthful, tasteful, beautiful, and educational.
- Bendix Passenger Brake Exhibit, Ford Exhibition Building, Century of Progress International Exposition, Chicago, Illinois, 1934 - Chicago's 1933-34 Century of Progress Exposition used the theme of progress to encourage optimism during the Depression. The Ford Exhibition Building, which sat on eleven acres at the fair and featured industrial demonstrations and informative displays like this, became the most talked-about exhibit of 1934.
- 1934
- Collections - Artifact
Bendix Passenger Brake Exhibit, Ford Exhibition Building, Century of Progress International Exposition, Chicago, Illinois, 1934
Chicago's 1933-34 Century of Progress Exposition used the theme of progress to encourage optimism during the Depression. The Ford Exhibition Building, which sat on eleven acres at the fair and featured industrial demonstrations and informative displays like this, became the most talked-about exhibit of 1934.
- Poster, "The Westinghouse Air Brake Company 9-1/2 Inch Air Pump Diagrams," circa 1910 - Before the air brake's introduction, brakemen stopped trains by scrambling from car to car and setting individual brake mechanisms on each one. It was dangerous even in fair weather, let alone in wet or icy conditions. George Westinghouse's brake used air pumped from the locomotive, through an airline running the train's length, to operate brakes on each car automatically.
- circa 1910
- Collections - Artifact
Poster, "The Westinghouse Air Brake Company 9-1/2 Inch Air Pump Diagrams," circa 1910
Before the air brake's introduction, brakemen stopped trains by scrambling from car to car and setting individual brake mechanisms on each one. It was dangerous even in fair weather, let alone in wet or icy conditions. George Westinghouse's brake used air pumped from the locomotive, through an airline running the train's length, to operate brakes on each car automatically.
- Circuit Breaker - In the late 1800s, as companies began producing electricity to light cities, run streetcars, and power factories, homes and offices, new apparatus was needed to safely deliver and use electricity. Excess current in a circuit could damage electric lines and equipment. Circuit breakers protected electrical circuits by automatically interrupting the power flow during an event overload.
- Collections - Artifact
Circuit Breaker
In the late 1800s, as companies began producing electricity to light cities, run streetcars, and power factories, homes and offices, new apparatus was needed to safely deliver and use electricity. Excess current in a circuit could damage electric lines and equipment. Circuit breakers protected electrical circuits by automatically interrupting the power flow during an event overload.
- Portrait of Albert Schmid, 1877-1910 -
- 1877-1910
- Collections - Artifact
Portrait of Albert Schmid, 1877-1910
- Bicycle Coaster Brake, 1930-1950 - Ineffective early bicycle brakes led to runaway cycles that imperiled the rider and pedestrians. The coaster brake, first used in the late 1890s, allowed riders to stop pedaling and coast safely -- and, by applying backward pressure on the pedal, engage the brake drum in the wheel hub to let bike and rider come to a controlled stop.
- 1930-1950
- Collections - Artifact
Bicycle Coaster Brake, 1930-1950
Ineffective early bicycle brakes led to runaway cycles that imperiled the rider and pedestrians. The coaster brake, first used in the late 1890s, allowed riders to stop pedaling and coast safely -- and, by applying backward pressure on the pedal, engage the brake drum in the wheel hub to let bike and rider come to a controlled stop.
- Section of Bendix Exhibit, Ford Exhibition Building, Century of Progress International Exposition, Chicago, Illinois, 1934 - Chicago's 1933-34 Century of Progress Exposition used the theme of progress to encourage optimism during the Depression. The Ford Exhibition Building, which sat on eleven acres at the fair and featured industrial demonstrations and informative displays like this, became the most talked-about exhibit of 1934.
- 1934
- Collections - Artifact
Section of Bendix Exhibit, Ford Exhibition Building, Century of Progress International Exposition, Chicago, Illinois, 1934
Chicago's 1933-34 Century of Progress Exposition used the theme of progress to encourage optimism during the Depression. The Ford Exhibition Building, which sat on eleven acres at the fair and featured industrial demonstrations and informative displays like this, became the most talked-about exhibit of 1934.
- Poster, "The Westinghouse Air Brake Company S-4 Governor Closed Position," circa 1910 - Before the air brake's introduction, brakemen stopped trains by scrambling from car to car and setting individual brake mechanisms on each one. It was dangerous even in fair weather, let alone in wet or icy conditions. George Westinghouse's brake used air pumped from the locomotive, through an airline running the train's length, to operate brakes on each car automatically.
- circa 1910
- Collections - Artifact
Poster, "The Westinghouse Air Brake Company S-4 Governor Closed Position," circa 1910
Before the air brake's introduction, brakemen stopped trains by scrambling from car to car and setting individual brake mechanisms on each one. It was dangerous even in fair weather, let alone in wet or icy conditions. George Westinghouse's brake used air pumped from the locomotive, through an airline running the train's length, to operate brakes on each car automatically.
- Southern Beaten Biscuit Brake, 1850-1900 -
- 1850-1900
- Collections - Artifact
Southern Beaten Biscuit Brake, 1850-1900