Antiques Collector Restores Osborne No. 8 Reaper

Osborne No. 8 reaper eased back-breaking work of harvest.

| December 2012

  • Osborne No. 8 Reaper
    David Petersburg's Osborne No. 8 reaper.
    Photo By Bill Vossler; Photo Illustration By Karen Rooman
  • Reaper Teeth
    The reaper's sharp teeth cut the stalks while the wooden rakes move the grain.
    Photo By Bill Vossler
  • David And Carmen Petersburg
    David and Carmen Petersburg.
    Photo By Bill Vossler
  • Reaper Foot Lever
    A foot lever at bottom activates the finger cam, which sets the rake to either move grain off the table or allow it to accumulate there.
    Photo By Bill Vossler
  • Reaper Original Parts
    The reaper's wheels and toolbox are original to the piece.
    Photo By Bill Vossler
  • Reaper Bull Wheel
    The light yellow bull wheel (or drive wheel) is visible inside the reaper's wheel. The lever in front of the bull wheel was used to adjust the pitch of the sickle bar to the ground.
    Photo By Bill Vossler
  • Reaper Rakes
    Only one of the reaper's rakes was in serviceable condition. It was used as a pattern for creating replacements.
    Photo By Bill Vossler; Photo Illustration By Karen Rooman
  • Reaper Singletrees
    Singletrees (the shorter pieces) attached to the long evener balanced the draft pull from two horses. These pieces are original and required no repair.
    Photo By Bill Vossler

  • Osborne No. 8 Reaper
  • Reaper Teeth
  • David And Carmen Petersburg
  • Reaper Foot Lever
  • Reaper Original Parts
  • Reaper Bull Wheel
  • Reaper Rakes
  • Reaper Singletrees

When David Petersburg attended an estate sale in the mid-1990s, he had no idea what he might end up carting home. Certainly he did not expect to come home with an Osborne No. 8 reaper dating to the early 1900s. “I work at finding horse-related equipment and I like 19th century stuff, primitives you might call them,” he says, “primarily because everybody else had a cultivator and plow, and that didn’t interest me.”

The Petersburgs owned draft horses for a number of years. During that time, they were often invited to bring their horses to a threshing show at Claremont, Minn., to give rides to show-goers. There, they became good friends with their German neighbors with whom they shared a common interest. “They were into tractors and a variety of antiques,” he says, “and my interest in old iron kind of perpetuated from there.”

Damaged Osborne No. 8 reaper not a looker

When the Osborne No. 8 reaper came up for sale, David wasn’t certain what it was and neither was anyone else at the auction. Looking suspiciously like a pile of junk, it wasn’t generating much buyer interest. “It was in such bad condition that nobody wanted to bid on it,” he says. “But I had the same reaction I have whenever I’m going after a piece of equipment. I’m like a little kid that can hardly contain himself. I guess that’s part of the passion of collecting old equipment like this. It’s very exciting for me.”

After pulling the machine out of the shed where it had been stored, David says he could see damage caused by the building falling in on it. “Also, there were wear marks inside the apron and up against the divider boards, and the only way that could have happened was if it had been pulled too fast when it was in gear, or else when it was running somebody wasn’t paying attention when they were cutting grain. The freewheeling was out of adjustment, bolts were loose and there was some damage to the bed and so on.”

Sizing up a basket case

Every antiques collector sizes up potential acquisitions in his own way. When David evaluates old machinery, he doesn’t think in terms of whether the piece is a good candidate for restoration. His acquisitions fall into one of three categories: It’s a parts donor, a piece to resell or a piece to restore. After he got the pile otherwise known as an Osborne No. 8 reaper home, he set it in an open area so he could remove broken pieces and assess what needed to be done.



“Eveners, singletrees and other wood parts I usually have lying around, or else they’re pretty easily made or modified to be correct,” he says. “Some pieces I can do pretty quick. Then I get the rest of the machine cleaned up, check the gearing and make sure it’s lined up, see that the teeth are adjusted and nothing needs to be repaired. Once that’s accomplished, I repair broken pieces or fabricate new ones.”

Three of the reaper’s rakes were badly damaged, but one was in reasonably good shape. David used that one as a pattern for replacements. A cabinetmaker cut a cross-section from one of the broken rakes and found three types of wood had been used in its construction: hickory, maple and ash. The small fingers appeared to have been made of maple. Ash was used for the backboard, and the base component was made of hickory.



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