Leslie Proper
8.84K subscribers
4:24
ANOTHER STIRLING ENGINE
Leslie Proper
354 views • 2 months ago
2:27
MARY'S MARBLE MACHINE
Leslie Proper
1.7K views • 5 months ago
16:22
Running a miniature steam power plant for a model steam boat
Leslie Proper
2.1K views • 7 months ago
3:19
THREE STIRLING ENGINES
Leslie Proper
632 views • 1 year ago
7:30
MODEL RHOMBIC STIRLING ENGINE
Leslie Proper
1.1K views • 1 year ago
10:59
TANDEM CRANK STIRLING ENGINE
Leslie Proper
721 views • 1 year ago
9:18
STIRLING ENGINE MADE BY LES PROPER
Leslie Proper
818 views • 1 year ago
16:59
INTERNAL COMBUSTION ENGINE NO. 6
Leslie Proper
2.1K views • 1 year ago
1:02:57
MINIATURE 4-STROKE INTERNAL COMBUSTION ENGINE
Leslie Proper
2.4K views • 2 years ago
13:40
MINIATURE HIT & MISS INTERNAL COMBUSTION ENGINE
Leslie Proper
2.2K views • 2 years ago
11:46
VERTICAL COPPER BOILER STEAM ENGINES
Leslie Proper
2.3K views • 2 years ago
11:18
ODDS & ENDS ENGINE, Built by Les Proper
Leslie Proper
1.3K views • 2 years ago
12:32
Miniature 4-Stroke Hit & Miss Internal Combustion Engine
Leslie Proper
1.8K views • 2 years ago
8:36
MINIATURE 4-STROKE INTERNAL COMBUSTION ENGINE
Leslie Proper
3.1K views • 3 years ago
29:25
BUILDING A MINIATURE 4-STROKE INTERNAL COMBUSTION ENGINE, PART 3 CONNECTING ROD
Leslie Proper
3.2K views • 3 years ago
24:37
MAKING A MINIATURE 4 -STROKE I. C. ENGINE, PART 2 - CRANKSHAFT
Leslie Proper
5.1K views • 3 years ago
25:35
MAKING A MINIATURE 4-STROKE I.C. ENGINE, PART 1 BLOCK/CRANKCASE
Leslie Proper
4.7K views • 3 years ago
12:55
MINIATURE, 4 - STROKE, INTERNAL COMBUSTION ENGINE WITH SPARK IGNITION
Leslie Proper
3.1K views • 3 years ago
48:55
DRAGONFLY AIR RIFLE
Leslie Proper
3.8K views • 3 years ago
23:04
MAKING AGATE RINGS
Leslie Proper
2.1K views • 4 years ago
6:27
MARBLE MACHINE MEDLEY
Leslie Proper
971K views • 5 years ago
12:58
MAIDEN VOYAGE OF THE VITAL SPARK
Leslie Proper
2.9K views • 5 years ago
19:45
MAUDSLAY REVERSING GEAR ON MINIATURE STEAM ENGINE
Leslie Proper
6K views • 5 years ago
12:25
MINIATURE STEAM ENGINES WITH REVERSING VALVES
Leslie Proper
3.3K views • 5 years ago
22:51
NEW HUBER STEAM TRACTION ENGINE
Leslie Proper
4.5K views • 5 years ago
4:49
TEST OF LIFTING MECHANISM FOR MARBLE MACHINE
Leslie Proper
7.8K views • 6 years ago
27:14
Minneapolis Steam Traction Engines, 1/20 Scale Model Live Steamers
Leslie Proper
25K views • 6 years ago
16:39
MODEL STEAM ENGINES
Leslie Proper
4.5K views • 6 years ago
16:27
TWO MINIATURE STEAMBOAT POWERPLANTS
Leslie Proper
52K views • 6 years ago
13:55
MODEL STEAM ENGINE
Leslie Proper
5.3K views • 6 years ago
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