American Machine and Foundry

American Machine and Foundry, or AMF, was a manufacturer that diversified beyond bakery and tobacco machinery by taking up Gottfried Schmidt’s automatic pinsetter. The company’s partnership with Schmidt helped bring the invention from a Depression-era prototype to bowling alleys across the United States. The machines made bowling faster and easier to expand, but the resulting boom also drew investors into a speculative frenzy: AMF’s stock doubled alongside Brunswick’s in 1957–58, and bowling shares later fell sharply when the boom faded.

Company and Opportunity

AMF specialized in machinery for the bakery and tobacco industries, but it was looking to diversify. Its vice president Morehead Patterson, himself an amateur inventor, saw that an automatic pinsetter could reshape an industry still dependent on human pin boys. Because pin boys had to reset pins by hand, bowling alleys were limited in how many lanes they could operate. Their relationships with customers could also be contentious, while reformers portrayed bowling alleys as noisy dens of vice. Patterson saw mechanical pinsetting as a way to make the alleys more orderly and efficient, and to support their expansion and modernization.

The opportunity came from Schmidt, an engineer and pattern maker who had built his first working model in a turkey coop behind his home in Pearl River, New York. He had assembled a small team that included car mechanics and another engineer, and used scrap metal, bicycle chains, and used automobile parts to construct the machine during the Great Depression. Within a year, he had a working model and a patent, but lacked the means to manufacture it on a large scale. AMF could supply what the inventor did not have: an industrial route from a promising device to a commercial product.

Partnership and Production

Patterson went to Pearl River, found Schmidt in the turkey coop, and offered him a job. Schmidt became an AMF employee, and AMF gained control of the patent. The arrangement connected an invention developed from improvised materials in a small workshop to a company positioned to manufacture and market machinery at scale.

The pinsetter’s arrival was delayed by World War II, when AMF factories spent the first half of the decade producing war matériel. Although the machine made its official appearance in 1946, technical problems remained. Its first introduction in a bowling alley came in 1951, when an alley in Mount Clemens, Michigan, installed an automatic pinsetter—more than a decade after Schmidt had built his first working model. The path from prototype to adoption thus depended not only on the invention itself, but also on industrial capacity, wartime production priorities, and the time needed to resolve the machine’s remaining kinks.

Reshaping Bowling

The machines proved quicker and more reliable than pin boys, allowing games to move faster and making bowling more pleasurable. Alleys that had been dingy holes became palatial venues, and operators could run more lanes without relying on hand-setting. As the facilities changed, bowling was promoted as an activity for the whole family; the bowling alley acquired the name “the people’s country club.” By the late 1950s, more than 10 million people bowled at least once a week.

AMF’s innovation therefore had effects beyond replacing one task with a machine. It helped alter the scale and public image of bowling: mechanical efficiency supported larger operations, improved venues, and a mass-market appeal that attracted a booming middle class. The technology’s success also created a feedback loop between the industry’s visible growth and expectations that bowling would keep expanding.

Stock Boom and Reversal

That growth made bowling companies Wall Street favorites. Between 1957 and 1958, the stocks of AMF and Brunswick, another bowling-equipment manufacturer, doubled. Smaller bowling businesses went public, investors poured money into the sector, and bowling-related ventures found willing financiers. By 1960, the United States had 12,000 alleys and 110,000 lanes; investors had put $2 billion into the bowling business during the bubble.

Wall Street analysts helped intensify the enthusiasm by projecting that bowling’s popularity would continue growing at its recent pace, eventually reaching two hours of bowling a week for every American. The projection translated a real expansion in the sport into an immense promise of future demand. As enthusiasm spread from the industry’s actual growth to increasingly sweeping expectations, the boom took on a life of its own.

The reversal exposed the gap between the forecast and what followed. By 1963, bowling stocks had fallen 80 percent from their all-time highs, and it took nearly a decade for them to regain the lost ground. Bowling became less popular and never again reached the level it had attained during the Eisenhower years. The episode places AMF at the intersection of two transformations: the company helped make bowling more efficient and popular, while its stock became part of a bubble in which confidence in continuing growth outlasted the boom itself.