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In The Cradle of Industry and Liberty

An illustrated history of Philadelphia's manufacturing sector paired with the histories of local companies that make the city great.

An illustrated history of Philadelphia's manufacturing sector paired with the histories of local companies that make the city great.

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DONOVAN HEAT<br />

TREATING CO.,<br />

INC.<br />

@<br />

Below: Thomas J. Donovan with the<br />

Reynolds family.<br />

Bottom, left: Thomas J. Donovan.<br />

Bottom, right: Forty foot Reading Furnace<br />

taken at our open house in November 2013.<br />

Donovan Heat Treating Co., <strong>In</strong>c. (DHT) is<br />

a commercial batch heat treating facility<br />

owned <strong>and</strong> operated since 2005 by President/<br />

CEO Metallurgist Jeffrey D. Uhlenburg. Metal<br />

heat treating is a 4,000 year old science that<br />

provides steel with the strength required for<br />

bridges <strong>and</strong> infrastructure, makes springs<br />

springy, <strong>and</strong> enables the manufacturing <strong>of</strong><br />

many <strong>of</strong> the products we all use every day.<br />

And, while the industry may be old, material<br />

science, manufacturing processes <strong>and</strong> business<br />

practices are always evolving. Maintaining<br />

quality, service <strong>and</strong> relationships in the ever<br />

changing steel industry as well as the local<br />

<strong>and</strong> global economic climate is what makes<br />

Donovan’s unique <strong>and</strong> has enabled this<br />

company to thrive for over seventy years.<br />

Donovan Heat Treating adds value to the<br />

metals manufacturing process by imparting<br />

large steel plate, piping, <strong>and</strong> related products<br />

provided by customers with the properties<br />

(i.e. hardness, strength, flexibility, etc.)<br />

required by that customer for the desired<br />

grade <strong>of</strong> steel, typically within very specific<br />

tolerances. Donovan’s services include heat<br />

treating, abrasive blasting, quenching (air,<br />

water, <strong>and</strong> oil) <strong>and</strong> collaborating with<br />

customers to refine heat treating methods<br />

<strong>and</strong> procedures at the very start <strong>of</strong> the metals<br />

manufacturing process.<br />

“<strong>The</strong> Donovan Company” as it was previously<br />

known, was founded in 1943 by<br />

Thomas J. Donovan, Jr., who had been a<br />

salesman for a steel warehouse firm.<br />

Donovan, Jr., began his business in a single<br />

row house at 1615 North Second Street,<br />

utilizing fourteen by eighteen inch diameter<br />

salt pots to treat tool steels. Two years later,<br />

a new building was built, doubling the shop<br />

size to nearly 5,000 square feet. At that time,<br />

a ten foot long car bottom furnace—under a<br />

two ton crane—was installed. <strong>The</strong> business<br />

grew steadily, assisting the war effort<br />

throughout the late 1940s. Donovan, Jr., died<br />

in 1965 <strong>and</strong>, having no heirs, his will left<br />

the business to a number <strong>of</strong> key employees.<br />

Lillian Siegfried, who had been Donovan’s<br />

secretary, was the major stockholder, <strong>and</strong><br />

when she decided to retire she put an ad<br />

in the newspaper <strong>of</strong>fering the company for<br />

sale. Donald Uhlenburg responded to the ad<br />

<strong>and</strong>, with the aid <strong>of</strong> an SBA loan, purchased<br />

the company in 1972. By 1976, Donald<br />

sought to exp<strong>and</strong> <strong>and</strong> acquired the company’s<br />

current location at 7399<br />

Tulip Street from <strong>The</strong>odore<br />

<strong>and</strong> Joan Wilhelm through<br />

a lease purchase agreement.<br />

As part <strong>of</strong> the expansion<br />

<strong>and</strong> relocation, Donald<br />

added atmosphere heat<br />

treating equipment <strong>and</strong><br />

moved the salt pots so the<br />

company could continue to<br />

be one <strong>of</strong> the most reliable<br />

<strong>and</strong> efficient heat treaters<br />

in the area. <strong>In</strong> 1980, DHT<br />

added a second atmosphere<br />

IN THE CRADLE OF INDUSTRY AND LIBERTY<br />

140

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