The Waterbury Button Company

A Connecticut button maker’s ocarinas, and its four ocarina patents

A button manufacturer that patented molded plastic ocarinas between 1938 and 1941, with two Waterbury men named as inventors and the company itself as the applicant in Britain.

First published

October 17, 2026

Every claim below comes from a patent the museum holds, the company’s own published history, or the instruments themselves, and every row of the chronology names which. Nothing here rests on a forum member’s recollection; where the museum has a lead it cannot yet document, the page says so instead of using it. Research and drafting were done with help from Claude, Anthropic’s AI assistant.

The Waterbury Button Company, a button maker in Waterbury, Connecticut, made ocarinas. They survive, one of them in the museum’s collection, and so do the four ocarina patents the company filed.

The patents name the company

Between June 1938 and June 1939 the firm filed three times in the United States and once in Britain. The United States patents are in two men’s names, and both assign the invention to the company:

George A. Mausolf, Waterbury, Conn., assignor to The Waterbury Button Company, Waterbury, Conn., a corporation of Connecticut

— US 2,145,605, application June 30, 1938

patent inventor filed granted or accepted
US 2,145,605 George A. Mausolf Jun 30, 1938 Jan 31, 1939
US 2,214,553 Paul R. Gruber Sep 23, 1938 Sep 10, 1940
US 2,195,992 George A. Mausolf May 6, 1939 Apr 2, 1940
GB 532,244 the company itself, as applicant Jun 20, 1939 Jan 21, 1941, accepted

Both inventors give Waterbury, Connecticut as their residence.

The British patent is in the company’s own name: its applicant is The Waterbury Button Company, and its Convention Date under the International Convention is May 6, 1939, the day Mausolf filed US 2,195,992. So the British filing is that American invention carried abroad.

What the patents say the halves were to be made of

Mausolf’s first patent, US 2,145,605, says the halves are:

“preferably made from a plastic molding compound such as ‘Bakelite’, cellulose acetate, etc.”

The firm’s own history dates its Bakelite work to 1925, thirteen years before Mausolf’s first filing, and claims it was among the earliest American manufacturers to mold the material into buttons. Both of Mausolf’s patents describe two molded halves sealed together at their abutting edges.

Two shapes, both made

Mausolf’s two patents show two different shapes. The second calls itself “an improved form of ocarina,” with an “oval-shaped body portion” and a mouthpiece “formed entirely of plastic compound similar to that from which the body of the ocarina is molded.” Both shapes were made and sold. The museum’s collection holds one in the shape of US 2,195,992, and its mark is an eagle.

A tuning patent of its own

Twelve weeks after Mausolf’s first filing, Paul R. Gruber, also of Waterbury, filed something different. His US 2,214,553 is titled Pitch Regulator for Musical Instruments, and its specification opens: “This invention relates to improvements in musical instruments, and more particularly to a pitch controlled wind instrument such as an ocarina.” Its description is of an ocarina: the pitch control “is located on one side of the ocarina in position for convenient manipulation while the instrument is being played”, the knurled cap is turned “to adjust the pitch of the ocarina”, and “the ocarina is also provided with a permanently open outlet.” Its seven claims are written for wind instruments generally.

Gruber’s drawings show the shape of Mausolf’s first patent, with the regulator set into the bottom side. The museum has not seen a surviving example with the regulator.

Chronology

Every row is from a patent the museum holds or from the company’s own published history, and the source is named in the third column.

1812 The firm’s origin, by its own account: a rolling mill built at Waterbury to make buttons from brass the company’s history page
1849 The company’s history page gives this as the year The Waterbury Button Company was incorporated the company’s history page
1925 The same page dates the firm’s Bakelite work to here, and claims it was among the first American manufacturers to mold it into buttons the company’s history page
Jun 30, 1938 George A. Mausolf, of Waterbury, files an ocarina patent, for two molded halves sealed at the edges, preferably of a plastic molding compound such as Bakelite or cellulose acetate US 2,145,605
Sep 23, 1938 Paul R. Gruber, of Waterbury, files a pitch regulator for “a pitch controlled wind instrument such as an ocarina” US 2,214,553
Jan 31, 1939 US 2,145,605 is granted, assigned to the company the patent
May 6, 1939 Mausolf files a second ocarina patent US 2,195,992
Jun 20, 1939 The company files in Britain in its own name — “We, WATERBURY BUTTON CO.” — claiming the May 6, 1939 United States date GB 532,244
Apr 2, 1940 US 2,195,992 is granted the patent
Sep 10, 1940 Gruber’s pitch regulator is granted the patent
Jan 21, 1941 The British complete specification is accepted GB 532,244

Considered and not used

The 1935 course book. A forum post of 2011 describes a course book bought with a Waterbury ocarina. The museum has not seen a copy that names the firm.

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