A handcar (also known as a pump trolley, pump car, jigger, Kalamazoo,velocipede, or draisine) is a railroad car powered by its passengers, or by people pushing the car from behind. It is mostly used as a maintenance of way or mining car, but it was also used for passenger service in some cases. A typical design consists of an arm, called the walking beam, that pivots, seesaw-like, on a base, which the passengers alternately push down and pull up to move the car.
It is not clear who invented the handcar, also written as hand car or hand-car. It is likely that machinists in individual railroad shops began to build them to their own design. Many of the earliest ones operated by turning large cranks. It is likely that the pump handcar, with a reciprocating walking beam, came later. While there are hundreds of US patents pertaining to details of handcars, probably the primary designs of mechanisms for powering handcars were in such common use that they were not patentable when companies started to manufacture handcars for sale to the railroads.
Handcars were absolutely essential to the operation of railroads during a time when railroads were the primary form of public transportation for people and goods in America, from about 1850 to 1910. There may have been handcars as early as the late 1840s but they were quite common during the American Civil War. They were a very important tool in the construction of the Transcontinental Railroad. There were many thousands of them built. They were commonly assigned to a "section" of track, the section being between about 6 to 10 miles long, depending upon the traffic weight and locomotive speed experienced on the section. Each section would have a section crew that would maintain that piece of track. Each section usually had a section house which was used to store tools and the section's handcar. Roughly 130,000 miles of track had been constructed in America by 1900. Thus, considering there was a handcar assigned to at least every ten miles of that track, there would have been a minimum of 13,000 handcars operating in the United States. This number is obviously a gross underestimate because many sections were shorter than 10 miles and railroads also had spare handcars for use in unusual circumstances. Telegraph company Western Union and other rail-users had their own handcars, adding to the overall handcar population.
The first handcars, built in the railroad shops, were probably made of whatever parts the shops had around or could easily make. These cars were probably quite heavy. Weight is the enemy with handcars. Heavy handcars need more people to propel them. More people will add more power but at some point the benefits are offset by the weight of the people: their own weight would not be compensated by any extra power they can produce. Many companies made handcars in the years following the American Civil War as evidenced by the number of advertisements in contemporary publications such as The Car Builder's Dictionary. By the mid 1880s The Sheffield Velocipede Car Company, The Kalamazoo Velocipede Company and the Buda Foundry and Manufacturing Company were the three large companies who were the primary builders of handcars. Sheffield was almost immediately acquired by industrial giant Fairbanks Morse. All three companies changed their names over the years but for most of the years that they produced handcars, they were still identified as Sheffield, Kalamazoo and Buda. Hand cars continued to be available through the first half of the 20th Century. Fairbanks Morse was still offering a handcar from their catalog as late as 1950 and Kalamazoo sold them until at least 1955.