Ohio-Built Farm Machinery: Huber, Silver King, Leader, Centaur and General

By James N. Boblenz
Published on January 19, 2010
1 / 15
Art Gruber with his pride and joy, a 1934 Plymouth, long used as a grounds tractor at The Ohio State University.
Art Gruber with his pride and joy, a 1934 Plymouth, long used as a grounds tractor at The Ohio State University.
2 / 15
1934 Plymouth owned by Art Gruber.
1934 Plymouth owned by Art Gruber.
3 / 15
1934 Plymouth owned by Art Gruber.
1934 Plymouth owned by Art Gruber.
4 / 15
An unstyled 3-wheel Silver King with cast iron frame.
An unstyled 3-wheel Silver King with cast iron frame.
5 / 15
A styled 3-wheel Silver King with steel plate frame.
A styled 3-wheel Silver King with steel plate frame.
6 / 15
Centaur’s first tractor: a G-2 garden tractor equipped with a 2-cylinder LeRoi engine.
Centaur’s first tractor: a G-2 garden tractor equipped with a 2-cylinder LeRoi engine.
7 / 15
Centaur’s farm tractor, the KV (Klear View).
Centaur’s farm tractor, the KV (Klear View).
8 / 15
Centaur’s TracAir was a portable high-pressure compressed-air power plant. The machine was used on construction sites and by road maintenance crews. The attached hoses were used for jackhammers.
Centaur’s TracAir was a portable high-pressure compressed-air power plant. The machine was used on construction sites and by road maintenance crews. The attached hoses were used for jackhammers.
9 / 15
Art Gruber's General GG tractor.
Art Gruber's General GG tractor.
10 / 15
Mary Gruber's Leader tractor. Belt pulley and power take-off were standard equipment on the small tractor.
Mary Gruber's Leader tractor. Belt pulley and power take-off were standard equipment on the small tractor.
11 / 15
Mary Gruber with her Leader tractor. Belt pulley and power take-off were standard equipment on the small tractor.
Mary Gruber with her Leader tractor. Belt pulley and power take-off were standard equipment on the small tractor.
12 / 15
A 1931 Huber 20-36 with overhead valve engine. The model was produced from 1929 until the end of Huber farm tractor production in 1942. The tractor is on display at the Huber Machinery Museum, Marion, Ohio.
A 1931 Huber 20-36 with overhead valve engine. The model was produced from 1929 until the end of Huber farm tractor production in 1942. The tractor is on display at the Huber Machinery Museum, Marion, Ohio.
13 / 15
Part of Art Gruber’s collection of Silver King tractors, including some with mowers. Art’s tractor collection extends to Silver King memorabilia, including a bicycle, golf ball, fishing rod, wash scrub board, penny candy machine, cigarette lighter, hydraulic bottle jacks, tennis racket and chainsaw.
Part of Art Gruber’s collection of Silver King tractors, including some with mowers. Art’s tractor collection extends to Silver King memorabilia, including a bicycle, golf ball, fishing rod, wash scrub board, penny candy machine, cigarette lighter, hydraulic bottle jacks, tennis racket and chainsaw.
14 / 15
Art and Mary Gruber’s grandchildren and great-grandchildren with Art’s General GG. Kneeling at front: granddaughter Angie George with Logan on her knee and Madison standing. Great-grandson Caleb George is perched on the back wheel; granddaughter Emily Grace is in the driver’s seat, holding her son, Skyler. Standing at back is granddaughter Ruthie Gruber.
Art and Mary Gruber’s grandchildren and great-grandchildren with Art’s General GG. Kneeling at front: granddaughter Angie George with Logan on her knee and Madison standing. Great-grandson Caleb George is perched on the back wheel; granddaughter Emily Grace is in the driver’s seat, holding her son, Skyler. Standing at back is granddaughter Ruthie Gruber.
15 / 15
Part of Art Gruber's collection of Ohio-built equipment. At front is Centaur's first tractor, a G-2 garden tractor equipped with a 2-cylinder LeRoi engine.
Part of Art Gruber's collection of Ohio-built equipment. At front is Centaur's first tractor, a G-2 garden tractor equipped with a 2-cylinder LeRoi engine.

Occasionally one comes across a specialized collection of antique farm tractors, and Art Gruber’s fits that description.

The Marion, Ohio, man began collecting antique tractors about 20 years ago. It didn’t take him long to realize he needed to narrow his scope. He decided to focus on Ohio-made tractors. Once he discovered the existence of more than 120 tractor manufacturers in Ohio, he further narrowed his collection, concentrating on the five most well-known: Huber, Silver King, Leader, Centaur and General.

Today, Art’s collection includes more than 80 tractors, most of them Silver Kings and most still in their work clothes. He likes Silver Kings because they are more widely recognized and easy to transport to shows. He has at least one tractor for every year Silver Kings were produced (even when the assembly operation was relocated to West Virginia). He shows the tractors often, most frequently in Ohio and Florida.

Royal heritage

Silver King was a product of the Fate-Root-Heath Co., Plymouth, Ohio. FRH named its first tractor Plymouth in honor of the town where the company was based. Alas, the company immediately ran into trouble: Carmaker Chrysler took exception to use of the Plymouth name. The lawsuit was settled in Fate-Root-Heath’s favor, but the company sold its rights to the name to Chrysler anyway. That necessitated a new name for the FRH tractor. Company officials believed their product to be the “king” of tractors, and the Plymouth had been painted silver with blue trim. The Silver King was born.

The 10-20 Plymouth tractor was introduced in 1934. Powered by a Hercules Model 1XA 4-cylinder engine, it had a 4-speed transmission with a top speed of 25 mph. The name Plymouth was prominently cast vertically on the radiator nose.

Art has two 1934 Plymouth/Silver King tractors. One was once used as a grounds tractor at The Ohio State University. The other was produced just after FRH sold the Plymouth name to Chrysler Corp. Although still a Plymouth, it also carries the Silver King nameplate on the nose of the radiator grille.

Silver King introduced an unusual 3-wheeled tractor in 1936. The new model was sold as a cultivating and general purpose farm tractor. Art says three rear-end gear ratios were offered: low ratio for general farm work, medium ratio for combination hard work and speed, and a high ratio used primarily for highway mowing tractors. These tractors reportedly traveled at highway speeds approaching 30 mph. The first 1,000 produced had cast iron frames; later models used steel plate frames along each side of the engine.

Online Store Logo
Need Help? Call 1-866-624-9388