Riggle 1/4 Scale Midget Race Car
Craftsman: Jim Riggle
Knapp Collection #: 238
Catalog #: 2011.27.21
Contributor: Paul Knapp
This 1/4 scale Riggle midget race car was designed and built by Jim Riggle. Jim made the patterns and molds for the 4-cylinder, water-cooled, DOHC mono-block engine.
Riggle 4-Cylinder Inline Engine
Craftsman: Jim Riggle
Knapp Collection #: 695
Catalog #: 2022.8.6
Contributor: Paul Knapp
This Riggle 4-cylinder inline engine is 9.5″-long, 7″-wide, 7.5″-inches tall, and is mounted on a running stand that houses all necessary accessories to run and monitor the engine.
Riggle NOVI DOHC 1/4 Scale Sprint Car
Craftsman: Jim Riggle
Knapp Collection #: 300
Catalog #: 2011.32.14
Contributor: Paul Knapp
This 1/4 scale Novi V8 sprint car was designed and built by Jim Riggle, of North Dakota, in the mid-1980s. The model car is 37″-long, 16″-wide, and 12″-high. Jim used this sprint car as the test platform for his new model of the NOVI V8 engine.
Riley Whiting Winchester Wall Clock
Craftsman: Riley Whiting
Catalog #: 2011.11.4
Donor: Joe Kunkler
This weight-driven Winchester wall clock was built by Riley Whiting, and dates back to the 1800s.
Rimfire Spark Plug Prototypes
Craftsman: Paul Knapp
Knapp Collection #: 296
Catalog #: 2011.27.44
Contributor: Paul Knapp
These Rimfire spark plug prototypes were built by Paul Knapp in 1993. The first prototype is the surface-gap plug responsible for the “Rimfire” name and logo.
Ringbom Hot Air Engine
Craftsman: Birk Petersen
Catalog #: 2016.15.61
Donor: Mark Petersen
A miniature Ringbom hot air engine.
Robarts R780 7-Cylinder Radial Engine
Craftsman: Bob Walker
Knapp Collection #: 13
Catalog #: 2011.27.3
Contributor: Paul Knapp
This Robarts R780 7-cylinder radial engine has a bore of 1.125 inches and stroke of 1.125 inches for a total displacement of 7.8 cubic inches.
Robert Stirling’s First Engine
Craftsman: Birk Petersen
Catalog #: 2016.15.35
Donor: Mark Petersen
Birk built this model of Robert Stirling’s first hot air engine. It has a brick façade on the metal housing.
Robert Stirling’s Fourth Engine
Craftsman: Birk Petersen
Catalog #: 2016.15.24
Donor: Mark Petersen
This is a small model of Robert Stirling’s fourth engine.
Robinson Hot Air Engine Model
Craftsman: Birk Petersen
Catalog #: 2016.15.42
Donor: Mark Petersen
Birk’s model of a Robinson hot air engine.
Robot Chest Music Box
Craftsman: Donald Riley
Catalog #: 2021.19.4
Contributor: Donald Riley
This music box, entitled “Robot Chest,” includes a hoard of individual robots along with a ray gun and old-fashioned microphones.
Robotic Arm and Hand
Craftsman: Carl Hammons
Catalog #: 2013.16.1
Donor: Joe Martin
This unique project is a stepper motor-powered experimental robot gripping arm designed by Carl Hammons.
Rock House
Craftsman: George & Judy Burke
Catalog #: 2018.47.5
Donor: Anthonly Burke
This small dollhouse is aptly named Rock House.
Rocking Engine
Craftsman: Birk Petersen
Catalog #: 2016.15.75
Donor: Mark Petersen
Birk Petersen built this miniature electric rocking engine.
Rocking Valve Engine
Craftsman: Theodore Carder
Catalog #: 2021.11.5
Donor: Susi Trumbo
A miniature rocking valve engine built by Theodore Carder.
Rodless Rotary Engine
Craftsman: Peter Grunstra
Catalog #: 2013.42.1
Donor: Peter Grunstra
This 2-cycle rodless rotary engine, suitable for aircraft or autos, is a prototype built by Peter Grunstra.
Root & Vandervoort 2 HP Hit N’ Miss Engine (Full-Size)
Craftsman: Root & Vandervoort; Restored by Bill Fowler
Catalog #: 2011.4.1
Donor: Les Cade
This full-size Root & Vandervoort 2 HP hit n’ miss engine was restored by Bill Fowler, and donated to the museum by Les Cade. The engine can run at 450 rpm, and the serial number is BL1337.
Root & Vandervoort Vertical Gas Engine
Craftsman: Russell Anderson
Catalog #: 2019.21.4
Contributor: Steve Anderson
Several engines built by Russell Anderson, including this Root & Vandervoort vertical gas engine, are on display in the Craftsmanship Museum.
Rose Cottage Dollhouse
Craftsman: Anita Kirwan
Catalog #: 2021.4.4
Contributor: San Diego Miniature Crafters Assn.
This dollhouse scene built by Anita Kirwan is entitled, “Rose Cottage.”
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