Holt Caterpillar Tractor Engine
Craftsman: Ron Schindele
Knapp Collection #: 696
Catalog #: 2022.8.7
Contributor: Paul Knapp
Ron Schindele’s extraordinary rendition of the well-known Holt Caterpillar engine sold by Cole’s Power Models. His custom wound dynamo puts out about 40 volts.
Hoosier 3-Cylinder Air Motor
Craftsman: Hoosier
Catalog #: 2014.7.6
Contributor: Edward Swenton Jr.
This Hoosier Whirlwind radial 3-cylinder air motor includes a wooden propeller.
Horizontal 4-Stroke Stationary Engine
Craftsman: Roger Butzen
Knapp Collection #: 772
Catalog #: 2024.5.14
Contributor: Paul Knapp
This horizontal 4-stroke stationary engine was built by Roger Butzen.
Horizontal Ball Piston Steam Engine
Craftsman: Les Cade
Catalog #: 2011.4.12
Donor: Les Cade
This horizontal ball piston steam engine was built by Les Cade. As the title suggests, the piston is made from a steel ball.
Horizontal Gas Engine
Craftsman: Russell Anderson
Catalog #: 2019.21.8
Contributor: Steve Anderson
Russell Anderson gained the knowledge to build this horizontal gas engine, and many others, by working on farm equipment in his early years.
Horizontal Stationary Engine
Craftsman: Rudy Kouhoupt
Donor: Susan Alvaro
No castings are used in this engine design, which features curved spokes in the twin flywheels.
Horizontal Steam Engine
Craftsman: Birk Petersen
Catalog #: 2016.15.97
Donor: Mark Petersen
This horizontal steam engine with magenta flywheel was built by Birk in 2004.
Horizontal Steam Engine
Craftsman: Birk Petersen
Catalog #: 2016.15.116
Donor: Mark Petersen
A horizontal steam engine with maroon flywheel built in 2004.
Horizontal Steam Engine
Craftsman: Les Cade
Catalog #: 2011.4.9
Donor: Les Cade
This small horizontal steam engine drives a generator which illuminates a light bulb.
Horizontal Steam Engine
Craftsman: Rudy Kouhoupt
Donor: Susan Alvaro
This small horizontal steam engine includes a custom display base and box.
Horizontal Steam Engine
Craftsman: Rudy Kouhoupt
Donor: Susan Alvaro
This tiny horizontal steam engine is one of many built by Rudy Kouhoupt.
Horizontal Steam Engine
Craftsman: Les Cade
Catalog #: 2011.4.9
Donor: Les Cade
This single-cylinder, reversing steam engine was built from bar stock using Sherline miniature machine tools. It was scaled up from plans for a smaller engine.
Horizontal Steam Engine
Craftsman: Les Cade
Catalog #: 2011.4.11
Donor: Les Cade
This reversing horizontal steam engine was built by Les Cade using Sherline miniature machine tools. It features a 2″ diameter solid steel flywheel.
Hornet “R” .60 Model Airplane Engine
Craftsman: Victory Tool & Die
Catalog #: 2015.22.4
Donor: Tony Cina
This hornet “R” engine is Serial No. V6460. It has a bore of .940 and a stroke of .875 for a total displacement of .607 cubic inches.
Howell V-Twin Engine
Craftsman: Ramon Hoagland
Knapp Collection #: 694
Catalog #: 2022.8.5
Contributor: Paul Knapp
This Howell air-cooled V-twin engine was built by Ramon Hoagland. The engine is 18″-long, 11.5″-wide, 11″-high, and weighs 21 lbs.
Howell V4, 4-Cylinder 4-Stroke Model Engine
Craftsman: Ramon Hoagland
Knapp Collection #: 667
Catalog #: 2021.9.5
Contributor: Paul Knapp
This Howell V4, 4-cylinder, 4-stroke model engine was built by Ramon Hoagland, of Colorado, in 2013.
HP .61 Engine Cutaway
Craftsman: Hirtenberger Patronen
Catalog #: 2010.19.7
Donor: Jerry Nelson
The Silver Star and Gold Cup engines are among some of last to be made in Austria before production was moved to the USA in 1990.
HP Gold Cup .40 Engine Cutaway #21
Craftsman: Hirtenberger Patronen
Catalog #: 2010.19.5
Donor: Jerry Nelson
This particular HP engine has a black Thermex coating and a muffler weight of 3.6 ounces.
HP Silver Star .40 Engine Cutaway #22
Craftsman: Hirtenberger Patronen
Catalog #: 2010.19.4
Donor: Jerry Nelson
This HP Silver Star cutaway model, one of four donated by Jerry Nelson, shows the engine’s internals.
Showing 20 of 679 exhibits.