Borland and Hoffmann Adding Machine

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Borland and Hoffmann Adding Machine

According to their patent, Borland and Hoffmann designed their adding machine to allow users to “add a column of figures quickly and accurately, and without it being necessary for him to look at the machine, so that no time may be lost in looking from his machine to the column of figures to be added, and which at the same time shall be simple in construction, accurate in operation, and may be used with great rapidity.” Had it ever been built, this would have been a great advancement in adding machines, which, up until this time, featured keyboards that weren’t straightforward or intuitive to use. Unfortunately, it appears that this device was never built.

Borland and Hoffmann Adding Machine

In 1878 William Patterson Borland, native of Baltimore, who lived in Leavenworth, Kansas, and Herman Hoffman, a watchmaker in Leavenworth, patented a one-column key adder (see US patent 205993), similar to the earlier Adder of Marshall Cram and to the later Centigraph of Arthur Shattuck.

Let’s examine the mechanism of the device, using the patent drawing (see the patent drawing below).

According to the patent, “The units and tens of the numbers added are indicated by the pointer, and the hundreds are indicated by the pointer C’.

The levers are raised into their normal position after being lowered by the operator by means of springs G’ attached to the base, and which rest against the lower side of the levers. As the levers are raised by the springs G’ they strike against a pad, H’, of rubber or other suitable material, attached to a bar of the keyboard frame, so as to prevent any jar or noise when the said levers return to their places after being operated.”

There is no evidence that a model of this device was ever built or that it was manufactured.

The adding machine of Borland and Hoffmann, patent drawing
Borland and Hoffmann’s adding machine was designed to operate silently.

What Is Known About the Inventors Borland and Hoffmann?

Almost nothing is known about Herman A. Hoffmann other than that he was a local watchmaker in Leavenworth and that he died on October 13,1889.

For William Borland however, there is some information.

William Patterson Borland was born in 1827, in Baltimore, to Thomas Borland and Catherine Ogle. Thomas Borland was a Scotch-Irish Presbyterian who came to Baltimore from the north of Ireland about 1800 and was naturalized in 1805. He came to U.S. on the death of his parents and was adopted by his mother’s brother, William Patterson, a super-cargo merchant of Baltimore, owning a line of sailing vessels and trading in the East Indies, dealing principally in tea, sugar, spices and molasses. Thomas Borland later became a partner in the business, the firm being Patterson and Borland. Patterson Park in Baltimore was named for this William Patterson, but his chief claim to fame is that he was the father of Elizabeth, “Glorious Betsy,” who married Jerome Bonaparte, the youngest brother of Napoleon I, who reigned as King of Westphalia as Jerome Napoleon I from 1807 to 1813.

In 1818 Thomas Borland married Catherine Hall Ogle of Cecile County, Maryland. They had two sons, Thomas Borland and William Patterson Borland.

Thomas died young, while William, who was born 1827, worked as a merchant in Benton County, Lindsey Township, Missouri, in early 1850s and married Elizabeth Hasson, also of Baltimore, in 1856. They moved to Warsaw, Missouri, where William served as a cashier in Mechanics Bank of St. Louis, Warsaw branch. In 1858 they moved again, this time to Leavenworth, Kansas, where they lived until his death in late 1880s. There had five children, Thomas, Mary, Katharine, Elizabeth (1862-1941) and William Patterson Borland, Jr. (1867-1919) (a famous US Congressman from Missouri).

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