by Bruce Wells | Apr 5, 2024 | Petroleum Transportation
Pennsylvanians advance oil industry infrastructure and later help invent “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 long, but more success followed when Amos came up with an innovative keyboard arrangement for typewriters.
Flatbed railroad cars with two wooded 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 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 taking 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.
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.
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.
“Biographies of the Densmores — and even their personal papers now residing at the Milwaukee Public Museum — all refer to their work on typewriters, but make no mention of their pioneering work in railroad tank car design,” notes the Pennsylvania Historical Commission.
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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. Become an AOGHS annual supporting member 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: April 5, 2024. Original Published Date: April 7, 2013.
by Bruce Wells | Apr 3, 2024 | Petroleum Technology
Giant rigs drilled to record depths in Oklahoma in the 1970s.
The Anadarko Basin, extending more than 50,000 square miles across west-central Oklahoma and the Texas Panhandle, includes some of the most prolific natural gas reserves in the United States — and a 1974 drilling record.
Beginning in the late 1950s, when technological advances allowed it, Anadarko Basin wells in Oklahoma began to be drilled more than two miles deep in search of highly pressurized natural gas zones. (more…)
by Bruce Wells | Mar 25, 2024 | Petroleum Companies
Chicago business sought risky shale opportunities during WWI.
At the end of the 20th century, record-breaking petroleum production from oil shale grew thanks to drilling and production technologies that produced from low permeability “tight oil” formations. But a century ago, shale was an unconventional resource mined, crushed and transported to a retorting facility.
Mining shale began as an extraction process that converted organic matter within the rock (kerogen) into synthetic oil and gas, which could be used as a fuel or upgraded for an oil refinery feedstock.
The strategic importance of America’s mined shale production led to establishment of the Naval Petroleum and Oil Shale Reserves in 1912, “to insulate the United States from foreign dependency on oil during times of war.”
Commissioned in 1914 with coal-powered boilers, the battleship USS Texas was converted to use fuel oil in 1925. Photo courtesy Texas Parks and Wildlife Department.
Meanwhile, fuel oil also began replacing coal in U.S. warships (See Petroleum and Sea Power), as World War I erupted in Europe. After more than three years of neutrality, America entered the war on April 2, 1917.
Recognizing wartime demand for oil, Van H. Manning, director, U.S. Bureau of Mines, declared, “We have as yet untouched our great reserves of shale that contain oil…and are conservatively estimated to contain many times the amount of oil that has been or will have been produced from all the porous formations in this country.”
Central Oil Shale Refining Company formed with $500,000 capitalization and set up offices in Chicago. The venture saw a financial opportunity in mining shale and secured leases on 480 acres in Garfield County, Colorado, an area with known deposits.
Central Oil Shale Refining also leased a total of about 5,000 acres in Kentucky, Kansas, and Texas. These investments were a gamble on the margins of supply and demand.
Despite the risks, Central Oil Shale Refining presented “Expert Information on Oil Shale” to stockholders and potential investors at Chicago’s Palmer House hotel. Company executives promoted the mining and distillation of Colorado oil shales as an opportunity not to be missed. It helped that publications like Oil Field Engineering (December 1917) proclaimed shales as “A New Source of Gasoline.”
Shale Business Model
Oil shale operator Joseph Bellis presented a business model to the Palmer House audience, describing oil shale production process and economics. Bellis, a veteran of Colorado shale mining in the Piceance Creek Basin, later published a paper in the Colorado School of Mines’ quarterly magazine.
The paper may have helped Central Oil Shale Refining stock sales, but the company’s trajectory had already been determined on a farm near Ranger, Texas.
Concerns about U.S. wartime oil supplies declined — along with oil prices — soon after an October 17, 1917, gusher halfway between Abilene and Dallas. Still annually celebrated by area residents, “Roaring Ranger” J. McCleskey No. 1 well produced 1,600 barrels of oil a day. Other wells in the oilfield would yield up to 10,000 barrels of oil daily.
The North Texas drilling boom opened giant fields near Desdemona and Breckenridge (Conrad Hilton would buy his first hotel in Cisco). An even bigger oilfield was found in 1918 at Burkburnett, near Wichita Falls. With suddenly abundant supplies, oil sold for less than $2 per barrel — five cents a gallon.
Central Oil Shale Refining was in deep trouble. Even if every ton mined resulted in 50 gallons of oil, it would take more than 1,300 tons of shale every day to match the McCleskey’s well production alone. The numbers didn’t work and debts needed to be paid.
In one last effort to survive, Central Oil Shale Refining reorganized with the same officers, moved its offices, and subtly changed its name to Central Oil Shale and Refining Company. The new company quickly failed, leaving a brief shadow in financial records.
Another example of producing commercial quantities of petroleum from shale can be found in Ute Oil Company – Oil Shale Pioneer. By the 1980s, new technologies revolutionized petroleum production from low-permeability shales — especially for natural gas.
Annual U.S. crude oil production reached a record level of 10.96 million barrels per day in 2018, according to the U.S. Energy Information Administration.
Although geologists had known of the potential of drilling in these “tight oil” formations, only one percent of U.S. natural gas production came from shale as late as 2000. But by applying horizontal drilling and hydraulic fracturing techniques, in 2010 shale gas accounted for more than 20 percent of U.S. natural gas production, according to the Energy Information Administration (EIA).
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The American Oil & Gas Historical Society (AOGHS) preserves U.S. petroleum history. Become an AOGHS annual supporting member and help maintain this energy education website and expand historical research. For more information, contact bawells@aoghs.org. © 2024 Bruce A. Wells.
Citation Information – Article Title: “Central Oil Shale Refining Company.” Authors: B.A. Wells and K.L. Wells. Website Name: American Oil & Gas Historical Society. URL: https:https://aoghs.org/old-oil-stocks/central-oil-shale-refining-company. Last Updated: March 31, 2024. Original Published Date: April 1, 2019.
by Bruce Wells | Mar 9, 2024 | Petroleum in War
Reluctant Navy admirals switched from coal to oil — adding to engine power and simplifying resupply.
Commissioned on March 12, 1914, the USS Texas was the last American battleship built with engines to be powered with coal-fired boilers. Converted to burn fuel oil in 1925, the “Mighty T” became even more dominant at sea as the worldwide maritime change from coal to oil became another chapter of U.S. petroleum history.
When the industrial revolution ended the “Age of Sail,” coal that fired the boilers of steam-powered ships became a strategic resource. Worldwide “coaling stations” were essential at a time when oil was little more than a lubricant or a resource for making lamp kerosene. (more…)
