by Bruce Wells | Jul 2, 2024 | Petroleum Transportation
Densmore brothers advanced oil industry infrastructure — and helped create “QWERTY” typewriter keyboard.
As Northwestern Pennsylvania oil production skyrocketed following the Civil War, railroad oil tank cars fabricated by two brothers improved shipment volumes from oilfields to kerosene refineries. The tank car designed by James and Amos Densmore would not last, but more success followed when Amos invented a new keyboard arrangement for typewriters.
Flatbed railroad cars with two wooden oil tank cars became the latest advancement in oilfield infrastructure after the Densmore brothers patented their design on April 10, 1866.
The inventors from Meadville, Pennsylvania, had developed an “Improved Car for Transporting Petroleum” one year earlier in America’s booming oil regions. The first U.S. oil well had been drilled just seven years earlier along Oil Creek in Titusville.
The first functional railway oil tank car was invented and constructed in 1865 by James and Amos Densmore at the Miller Farm along Oil Creek, Titusville, Pennsylvania. Photo courtesy Drake Well Museum and Park.
Using an Atlantic & Great Western Railroad flatcar, the brothers secured two tanks in order to ship oil in bulk. The patent (no. 53,794) described and illustrated the railroad car’s design.
The nature of our invention consists in combining two large, light tanks of iron or wood or other material with the platform of a common railway flat freight-car, making them practically part of the car, so as they carry the desired substance in bulk instead of in barrels, casks, or other vessels or packages, as is now universally done on railway cars.
Development of railroad tank cars came when traditional designs, including the flatcar, hopper, and boxcar, proved inadequate for large amounts of oil — often shipped in 42-gallon barrels.
New designs were born out of necessity, as the fledgling oil industry demanded a better car for the movement of its product, according to American-Rails.com.
“Before the car was developed, railroads used a combination of boxcars, flatcars, and gondolas to haul everything from lumber and coal to crude oil, molasses, and water (by use of barrels),” noted Adam Burns in 2022. “One of the most prolific car types you will find moving within a freight train today is the tank car.”
Prone to leaks and top heavy, Densmore tank cars provided a vital service, if only for a few years before single, horizontal tanks replaced them.
According to transportation historian John White Jr., the Densmore brothers’ oil tank design essentially consisted of a flat car with wooden vats attached. “The Central Pacific is known to have used such specialized cars to transport water, he noted in his 1995 book, The American Railroad Freight Car.
“However, prior to the discovery of oil by Colonel Edward (sic) Drake near Titusville, Pennsylvania, on August 27, 1859, the tank car was virtually non-existent,” added White, a former curator of Transportation at the Smithsonian Institution.
Dual Tank Design
The brothers further described the use of special bolts at the top and bottom of their tanks to act as braces and “to prevent any shock or jar to the tank from the swaying of the car while in motion.”
A Pennsylvania Historical Commission marker on U.S. 8 south of Titusville commemorates the Densmore brothers’ significant contribution to petroleum transportation technology. Dedicated in 2004, the marker notes:
The first functional railway oil tank car was invented and constructed in 1865 by James and Amos Densmore at nearby Miller Farm along Oil Creek. It consisted of two wooden tanks placed on a flat railway car; each tank held 40-45 barrels of oil. A successful test shipment was sent in September 1865 to New York City. By 1866, hundreds of tank cars were in use. The Densmore Tank Car revolutionized the bulk transportation of crude oil to market.
The benefit of such railroad cars to the early petroleum industry’s infrastructure was immense, especially as more Americans eagerly sought oil-refined kerosene for lamps.
Despite design limitations that would prove difficult to overcome, independent producers took advantage of the opportunity to transport large amounts of petroleum. Other transportation methods required teamsters hauling barrels to barges on Oil Creek and the Allegheny River to get to kerosene refineries in Pittsburgh.
Riveted cylindrical iron tank cars replaced Densmore brothers’ wooden vat cars. Discarded Densmore tanks can be seen. Photo courtesy Drake Well Museum.
As larger refineries were constructed, it was found that it cost $170 less to ship 80 barrels of oil from Titusville to New York in a tank car instead of individual barrels. But the Densmore cars had flaws, notes the Pennsylvania Historical Commission.
They were unstable, top heavy, prone to leaks, and limited in capacity by the eight-foot width of the flatcar. Within a year, oil haulers shifted from the Densmore vertical vats to larger, horizontal riveted iron cylindrical tanks, which also demonstrated greater structural integrity during derailments or collisions.
The same basic cylindrical design for transporting petroleum can be seen as modern railroads load products from corn syrup to chemicals — all in a versatile tank car that got its start in the Pennsylvania oil industry.
The largest tank car ever placed into regular service was Union Tank Car Company’s UTLX 83699, rated at 50,000 gallons in 1963 and used for more than 20 years. A 1965 experimental car built by General American Transportation, the 60,000-gallon “Whale Belly,” GATX 96500, is now on display at the National Museum of Transportation in Saint Louis.
Oil Tanks to Typewriters
Although the Densmore brothers left the oil region by 1867 — their inventiveness was far from over. In 1875, Amos Densmore assisted Christopher Sholes to rearrange the “type writing machine” keyboard so that commonly used letters no longer collided and got stuck. The “QWERTY” arrangement vastly improved Shole’s original 1868 invention.
Amos Densmore helped invent one of the first practical typewriters.
Following his brother’s work with Sholes, inventor of the first practical typewriter, James Densmore’s oilfield financial success helped the brothers establish the Densmore Typewriter Company, which produced its first model in 1891. Few historians have made the oil patch to typewriter keyboard connection — including Densmore biographers.
The Pennsylvania Historical Commission reported that biographies of the Densmore brothers — and their personal papers at the Milwaukee Public Museum — all refer to their innovative typewriters, “but make no mention of their pioneering accomplishment in railroad tank car design.”
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Recommended Reading: The American Railroad Freight Car (1995); Early Days of Oil: A Pictorial History of the Beginnings of the Industry in Pennsylvania
(2000); Story of the Typewriter, 1873-1923 (2019); Myth, Legend, Reality: Edwin Laurentine Drake and the Early Oil Industry
(2009). Your Amazon purchase benefits the American Oil & Gas Historical Society. As an Amazon Associate, AOGHS earns a commission from qualifying purchases.
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The American Oil & Gas Historical Society (AOGHS) preserves U.S. petroleum history. Please become an AOGHS annual supporter and help maintain this energy education website and expand historical research. For more information, contact bawells@aoghs.org. © 2024 Bruce A. Wells. All rights reserved.
Citation Information – Article Title: “Densmore Oil Tank Cars.” Authors: B.A. Wells and K.L. Wells. Website Name: American Oil & Gas Historical Society. URL: https://aoghs.org/transportation/densmore-oil-tank-car. Last Updated: July 9, 2024. Original Published Date: April 7, 2013.
by Bruce Wells | Jun 24, 2024 | This Week in Petroleum History
June 24, 1937 – Traces of Oil found in Minnesota –
In far western Minnesota, a remote wildcat well drilled in Traverse County began producing three barrels of oil a day from a depth of 864 feet. The unlikely discovery prompted more leasing, but no commercial quantities of oil.
Traverse County, Minnesota, where oil production peaked in 1937.
The lack of an oilfield reaffirmed geologists’ conclusions since 1889 that conditions for significant petroleum deposits did not exist in Minnesota, despite some water wells in southern Minnesota containing small amounts of natural gas.
“Not much oil and gas is obtained from Precambrian rocks, with which Minnesota is very amply blessed,” noted the 1984 book Minnesota’s Geology.
June 25, 1889 – First Oil Tanker catches Fire in California
The first oil tanker built for that purpose, a schooner named W.L. Hardison, burned at its wharf in Ventura, California. The Hardison & Stewart Oil Company (later Union Oil) commissioned the experimental vessel, which offered an alternative to paying for railroad oil tank cars charging one dollar per oil barrel to reach markets in San Francisco.
With oil-fired steam boilers and supplemental sails, the schooner could ship up to 6,500 barrels of oil below deck in specially constructed steel tanks. After the fire, the tanks were recovered and used at the company’s Santa Paula refinery. It took 11 years before the company launched a replacement tanker, the Santa Paula.
Rare photographs of the oil doomed tanker W.L. Hardison and Ventura pier courtesy the Museum of Ventura County.
The Ventura Wharf Company by April 1898 had exported 518,204 barrels of bulk oil during the previous year, according to the Los Angeles Times. The pier remained a working wharf until 1936, when it became the longest recreational wooden pier in California.
Designated a Ventura Historic Landmark in 1976 and now 1,600 feet long, California’s oldest pier was refurbished for $2.2 million in 2000, according to the Museum of Ventura County, which also operates archaeological and agricultural museums. In nearby Santa Paula, the 1890 headquarters building of Union Oil Company is home to the California Oil Museum.
June 25, 1901 – Red Fork Discovery leads to Tulsa Boom
Six years before statehood, Oklahoma witnessed a second oil discovery (some say the third — see Another First Oklahoma Oil Well) when two drillers from the Pennsylvania oil regions discovered an oilfield at Red Fork in the Creek Indian Nation.
John Wick and Jesse Heydrick drilled the Sue A. Bland No. 1 well near the Creek village across the Arkansas River from Tulsa. Sue Bland, a Creek citizen, was the wife of homesteader Dr. John C. W. Bland. Their Red Fork well produced just 10 barrels of oil a day from a depth of 550 feet, but created a drilling boom attracting petroleum companies to nearby Tulsa.
Learn more in Red Fork Gusher.
June 25, 1999 – Texas Post Office named Historic Place
The former U.S. Post Office building in Graham, Texas, with its Great Depression-era oilfield mural by Alexandre Hogue, joined the National Register of Historic Places. Hogue’s 1939 “Oil Fields of Graham” has been joined by other art exhibits in its historic Art Deco building on Third Street.
“Oil Fields of Graham” by Alexandre Hogue, a 1939 mural restored in the Old Post Office Museum & Art Center of Graham, Texas. The white-haired gentleman was Graham mayor.
Hogue’s artwork included many southwestern scenes as part of the New Deal Federal Arts Program. His murals on the walls of public buildings often portrayed scenes of the Texas petroleum industry. In Graham’s historic building on Third Street, “Oil Fields of Graham,” 12 feet wide and 7 feet high, is among exhibits at the Old Post Office Museum & Art Center, which opened in 2002.
Learn more in Oil Art of Graham, Texas.
June 26, 1885 – Natural Gas Utility established in Pennsylvania
Peoples Natural Gas Company incorporated — the first Pennsylvania natural gas company chartered by the state to regulate production, transmission, and distribution of natural gas. A similar utility incorporation had taken place a year earlier in New York City when six competing companies combined to form Consolidated Edison.
By 1891, the Pittsburgh-based limited liability company had consolidated pipelines and facilities of Pittsburgh Natural Gas, Lawrence Natural Gas, Conemaugh Gas, and Columbia Natural Gas companies. More than a dozen more companies would be acquired between 1903 and 1961. The large utility added Saxonburg Heat and Light in 1979 and Equitable Gas in 2017, expanding natural gas services in West Virginia and Kentucky.
June 28, 1887 – Kansans celebrate First Natural Gas Jubilee
After erecting flambeau arches at the four corners of the town square, Paola, Kansas, hosted what local leaders described as “the first natural gas celebration ever held in the West.” Excursion trains from Kansas City brought about 2,000 people, “to witness the wonders of natural gas,” according to the Miami County Historical Museum, which preserves the region’s petroleum history.
Paola’s giant natural gas field attracted more petroleum exploration to Miami County, including this circa 1920 oil well. Photo courtesy Kansas Historical Society.
The town’s special event included a “grand illumination” of natural gas street lights, where “gas was attached to a yard sprinkler by a rubber hose, and when it was ignited there appeared nests of small blazes which were beautiful and attractive.”
Learn more in First Kansas Oil Well.
June 28, 1967 – Hall of Petroleum opens in Smithsonian Museum
The Hall of Petroleum opened at the Smithsonian Institution’s Museum of History and Technology in Washington, D.C. Exhibits included cable-tool and rotary rig drilling technologies and counterbalanced pumping units, The Hall of Petroleum also featured 1967 developments in offshore exploration and production.
Visitors to what in 1980 became the National Museum of American History were greeted by a mural painted by Delbert Jackson of Tulsa, Oklahoma. Jackson spent two years creating his 13-foot by 56-foot painting with scenes of oil and natural gas exploration, production, refining, and transportation.
A “Panorama of Petroleum” once greeted visitors to the Smithsonian’s American History Museum in Washington, D.C. The 13-foot by 56-foot mural today is exhibited inside Tulsa International Airport.
Jackson’s “Panorama of Petroleum” featured industry pioneers and served as a visual map to the hall’s oilfield technology exhibits. “If the hall can increase the public’s knowledge of and respect for the technical skill and know-how of those who make this energy available, it will have served its purpose,” noted the exhibit’s 1967 catalog. The mural ended up in storage for three decades, until finding a home at Tulsa International Airport.
Learn more in Smithsonian’s “Hall of Petroleum.“
June 29, 1956 – Interstate Highway System enacted
The Federal-Aid Highway Act of 1956, popularly known as the National Interstate and Defense Highways Act, became law. Passed at the urging of President Dwight D. Eisenhower, the act provided 90 percent federal funding for a “system of interstate and defense highways,” and authorized spending $25 billion through 1969 for construction of about 41,000 miles of interstates.
The U.S. interstate system had a total length of 48,191 miles by 2016. Federal regulations initially banned collecting tolls, but some now include tolls.
“Of all his domestic programs, Eisenhower’s favorite by far was the Interstate System,” noted historian Stephen Ambrose. The thirty-fourth president urged passage of the act for national defense; interstates would be needed for evacuating major cities during a nuclear war.
June 30, 1864 – Oil Tax funds Civil War
The federal government taxed oil for the first time when it levied a $1 per barrel tax on production from Pennsylvania oilfields.
Seeking ways to pay for the Civil War, Treasury Secretary Salmon Chase, featured prominently on the $1 “greenback,” advocated an oil tax.
Desperate for revenue to fund the Civil War as early as 1862, Treasury Secretary Salmon Chase advocated a $6.30 tax per barrel of oil and $10.50 per barrel on refined products. Angry oil producers rallied against the tax in Oil City, Pennsylvania, and sent delegates to Washington, D.C., where they negotiated a tax of $1 per 42-gallon barrel of oil.
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Recommended Reading: Minnesota’s Geology (1982); Black Gold in California: The Story of California Petroleum Industry 
(2016); Early California Oil: A Photographic History, 1865-1940
(1985); Tulsa Oil Capital of the World, Images of America
(2004); Oil in West Texas and New Mexico
(1982); Official Guide to the Smithsonian
(2016); Eisenhower: Soldier and President
(1968); Western Pennsylvania’s Oil Heritage
(2008). Your Amazon purchase benefits the American Oil & Gas Historical Society. As an Amazon Associate, AOGHS earns a commission from qualifying purchases.
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The American Oil & Gas Historical Society (AOGHS) preserves U.S. petroleum history. Please become an AOGHS annual supporter and help maintain this energy education website and expand historical research. For more information, contact bawells@aoghs.org. © 2024 Bruce A. Wells. All rights reserved.
by Bruce Wells | Nov 9, 2023 | Petroleum Transportation
The Elizabeth Watts shipped hundreds of barrels of petroleum from Philadelphia to London during the Civil War.
The 19th century U.S. petroleum industry launched many new industries for producing, refining, and transporting the highly sought after resource. With oil demand rapidly growing worldwide, America exported oil (and kerosene) during the Civil War when a small Union brig sailed across the Atlantic.
Soon after Edwin L. Drake drilled the first American oil well in 1859 along a creek in northwestern Pennsylvania, entrepreneurs swept in and wooden derricks sprang up in Venango and Crawford counties.
Launched in 1847 by the shipbuilding firm of J. & C.C. Morton of Thomaston, Maine, the Elizabeth Watts was about 96 feet long with a draft of 11 feet. The 224-ton brig made petroleum history during the Civil War.
As demand for oil-refined kerosene for lamps grew, oilfield discoveries created early boom towns like one at Pithole. Moving the resource from oilfields also brought the beginning of the petroleum industry’s transportation infrastructure.
“Doubt and distrust that preceded Drake’s successful venture suddenly fled before the common conviction that an oil well was the ‘open sesame’ to wealth,” reported Harpers New Monthly Magazine. After his historic discovery near Titusville, Drake bought up all the 40-gallon whiskey barrels he could find to transport his oil on barges down the Allegheny River to Pittsburgh refineries. (more…)
