Tag Archives: engineering

A look at grain operations at the J. H. Tillotson elevator in Lodgepole, Nebraska

by kocart
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A Union Pacific train rolls by the elevators in Lodgepole, Neb.

Story and photos by Kristen Cart

A beautiful elevator can be truly inspiring. My first visit to Lodgepole, Neb., was on a hazy October day, on the way to Wyoming, where we hunt elk. The misty skies did not show the elevator to its greatest advantage, so the best photography had to wait for a later visit. But this time I had the chance to visit the office and learn more about the elevator and the town.

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Melvin Paulsen inside the elevator driveway during corn transfer.

Melvin Paulsen, a two-year employee of the Frenchman Valley Coop, hailing from Julesburg, Colo., kindly showed me inside the main elevator. The interior lacked the embossed manhole covers that would reveal the builder, J. H. Tillotson, Contractor, but we knew the origins of this elevator from the recollections of my father Jerry Osborn.

The Denver-based builder had lost its owner, Joe Tillotson, and superintendent, Bill Morris, in separate traffic accidents during construction at Lodgepole. The mishaps ended a successful run of elevator projects. My grandfather, William Osborn, soon picked up the pieces and started his own company, Mayer-Osborn Construction Company, also based in Denver.

Melvin explained that the elevator was in the process of shifting grain from a main bin to the annex. The grain dryer attached to the elevator was no longer operational, so only grain that was sufficiently dry (with 18 percent or less original moisture content) could be accepted for storage. Grain that was on the moist end of the acceptable range had to go to the annex, which had ventilation fans, to prevent damage from overheating.

A fair pile of dust could accumulate during the grain transfer, so the elevator driveway was kept open to help blow it out. A shovel leaned nearby to take care of the remainder. Dust had to be cleared out completely to prevent an explosive hazard.

One of the newer bins was home to an emergency response relay for radio communications between dispatch and fire and emergency responders.

Elevator photos006Inside the Frenchman Valley Coop office was an old aerial photo of the elevator and one that was taken during its construction. Melvin kindly furnished me with an extra copy of the aerial shot. The elevator looked very much like its J. H. Tillotson brethren.

Lodgepole celebrates Old Settlers’ Days each year. The park alongside the railroad tracks fills with horses and buggies, tractors, vendors, and all manner of activities. A parade winds along the streets. The scene recalls a time when a farmer would drive his wagon up to the old wooden elevator on the rail line, and dump his grain in the pit, hoping for higher prices.

The town also attracts visitors when the old Union Pacific steam engine, UP844, stops on a regular scheduled visit.

Lodgepole’s elevator was a milestone in my grandfather’s building career. It remains one of the most attractive elevators in Nebraska.

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Successful concrete tests yielded an enduring elevator at Cordell, Oklahoma

by kocart

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Story by Kristen Cart

During a recent visit to Nebraska, Dad and I met with the son of Edwin Louis Christoffersen to go through family pictures. Young Ed produced a treasure from among his father’s personal effects. Edwin Christoffersen was superintendent for the Mayer-Osborn Construction job at Cordell Okla., and among his duties was the engineering of a safe and durable elevator. Testing the concrete from a given supplier was of paramount importance.

This logbook shows the results of the testing for each part of the elevator’s structure. It is a fascinating bit of engineering history, and it speaks for itself.

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Cordell concrete tests006You will notice that the date and time of day was included in the calculations for each test. This is how we were able to determine when the Cordell elevator was built.

While a number of factors were recorded for each test, it is not clear to us what each term meant. Perhaps some of our readers can explain the process to us.

It is a true privilege to see some of the engineering practices in use during the 1950s, at a time when slide rules did the work of computers, yielding sufficient precision to send our astronauts to the moon in the following decade.

These builders, engineers, and innovators were pioneers, working at the pinnacle of their profession. We wish to thank Ed Christoffersen for sharing this priceless piece of history.

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Newspaper clippings of the Lincoln, Nebraska, elevator show standard construction methods

by kocart

Story by Kristen Cart

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Omaha World-Herald

Among Edwin Christoffersen’s papers were clippings from the Lincoln, Neb., elevator construction site. While this was a Chalmers & Borton project, the clippings showed an impressively large elevator in the last stages of construction.

The story of a competitor’s biggest local project would have been of great interest to Ed, a superintendent for the Mayer-Osborn Construction Company. There is little doubt that Mayer-Osborn would have tried to get this contract. However, Chalmers & Borton frequently built the largest elevators.

It appears that the continuous pour was nearly complete for the huge structure, and that the planks were installed either for decking for the crews, or for the final pour which would cover each bin with a concrete cap. Once the concrete cured, final “wrecking out” would remove the forms.

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Omaha World-Herald

The headhouse was already in place, so the elevator was very close to completion. What cannot be seen is whether equipment that would come from subcontractors for installation in the headhouse and pit had yet arrived, and of course the run that would top the elevator and provide for grain distribution was yet to be finished.

The images provide a rare glimpse of the process, one that Edwin Christoffersen saw fit to preserve, much to our delight. This is a breathtaking view of a moment in time when America built with intrepidity and confidence, and left us with a towering legacy in the Plains.

The Cordell, Oklahoma elevator project fused engineering prowess with family ties

by kocart

Story by Kristen Cart

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Edwin Christoffersen was the superintendent on the Mayer-Osborn Construction project in Cordell, Okla. in 1950. His son and namesake kindly provided a notebook that gave a glimpse of the concrete engineering that went into the elevator. By trial and error, the company learned best practices, creating an enduring structure which would still operate more than sixty years later.

Edwin Louis Christofferson was the son of Jens “James” Lauritz Christoffersen, a first generation American who farmed and operated a farm stand in Fremont, Neb. Edwin was one of nine children. Ed’s sister Alice married William Osborn in 1923.

When the Mayer-Osborn enterprise was in full swing, Bill Osborn tapped relatives to manage projects or to provide manual labor. He followed a common practice.

Sons Dick and Jerry Osborn worked at various times building elevators. Bill Osborn entered partnership with Eugene Mayer, the brother of Joseph H. Tillotson’s wife Sylvia. At the Tillotson Construction Company of Omaha, Bill Osborn worked with Iver Salroth, husband of Emma, a Christoffersen cousin.

Naturally, when the opportunity arose, Ed Christoffersen found employment with his brother-in-law’s company an attractive proposition.

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Edwin Louis Christoffersen with his only child.

Ed’s son has kept a number of Mayer-Osborn keepsakes, in memory of his dad, who died when he was still quite young. One intriguing item was the logbook that Ed kept for the Cordell, Okla. elevator, recording concrete tests.

Various sand, gravel, and concrete mixtures were tested to a failure point to determine the ideal formula for a given project. The date and time of day was recorded for each test. In this journal, we discovered the year of construction for the Cordell elevator.

The elevator business brought families together to accomplish a common goal, and now, many years later, writing about the elevators brings the builders and their sons and daughters together again. The memories are kept in small personal repositories of clippings, photos and documents, and in tales of the job, and are captured fleetingly before the witnesses leave us.

Looking up at these great landmarks, we also look up to the patriarchs who built them, with respect, and awe.

Go West, young men, to Flagler, Colorado, and build a grain elevator!

by baggyparagraphs

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What could help the three teenaged sons of Reginald and Margaret Tillotson sons to grow up? Nothing better than going from Omaha, Neb., where Tillotson Construction Company was located, to Flagler, Colo., to build the annex to a grain elevator in 1953.

Charles, 18, Tim, 16, and Mike, 13, drove across the Great Plains in a new Ford, towing the trailer that would serve as their home and the job office.

Having started for the company as an assistant carpenter when he was 12, Charles was already quite skilled in elevator construction techniques.

But how did they fare for themselves? For instance, what did they eat during their weeks on the job?

“Regarding what we ate, I really don’t remember but it was probably beans and wieners,” Charles recalls. “We also ate at the local cafe in Flagler. That was when Tim and I weren’t screaming over to Elitches Park Outdoor pavilion in Denver (some 120 miles to the west) to squeeze in a night of dancing and return at daybreak to assume our work shift–no sleep of course. I think we left Mike alone in Flagler to fend for himself.

Mike spent many hours in the trailer, serving as timekeeper and reading hot rod magazines when he could.

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