TechnologySeptember 7, 1918
A Portable Gasoline Drag Saw
Stories by Frank C. Perkins
TechnologyAugust 31, 1918
Novel Auto Reel
TechnologyFebruary 23, 1918
Guide Carriage for Laying Large Sewage Concrete Pipes in Tunnels
TechnologyAugust 4, 1917
Inventions New and Interesting- August 4, 1917
A Department Devoted to Pioneer Work inthe Arts
The SciencesJune 9, 1917
A Vacuum Cleaner for use on Streets
The SciencesApril 21, 1917
A Novel Steam Superheater
The SciencesMarch 3, 1917
Trenching by Machinery
Power Devices that Facilitate the Work of the Contractor
The SciencesFebruary 24, 1917
Shop Measuring Machines
The SciencesOctober 28, 1916
How did it Happen?, Manufacture of Bar-Ie-Duc Jelly
A Novel Hoist Recorder for Mines and Elevators, Designed to Answer this Question
The SciencesOctober 7, 1916
Plowing Drainage Ditches
A Monster Implement Successfully Operated in the Middle West
The SciencesAugust 5, 1916
An Electrically Operated Marble Quarry
Many Different Machines at Widely Scattered Points Demonstrate the Advantages of this Kind of Power
The SciencesSeptember 11, 1915
Inventions New and Interesting - September 11, 1915
Simple Patent Law; Patent Office News; Notes on Trademarks
The SciencesSeptember 4, 1915
Giant German and Austrian Cranes
Required in Navy Yards for Placing Turrets, Guns and Machinery
TechnologyAugust 1, 1914
Super-high Velocity Cartridges and Three-barrel Guns
The SciencesJune 13, 1914
Some American and European Types of Electric Cold Saws
Recent Designs Illustrated
The SciencesMay 9, 1914
The Development of Electrically Operated Tools
Plate-bending Rolls and Hole-cutting Machines Designed at South Bethlehem
The SciencesMay 2, 1914
A One-Thousand-Ton Press for Forming Large Metal Shapes
The SciencesApril 11, 1914
European Induced Draft Installations
Constancy and Ready Control the Advantages Over Natural Draft
The SciencesMarch 7, 1914
A Canadian Suspension Bridge, The Reddening of Leaves
The SciencesDecember 6, 1913
A Gasoline Motor Plow, A Three-Axle Water Ballast Motor Roller and more
The SciencesOctober 4, 1913
Apparatus for Testing Mine Gases, Novel Multiple Drill Head for Roller Bearings and more
TechnologyAugust 9, 1913
Some Novel Electrical Devices
The SciencesMay 31, 1913
The Largest Reinforced Concrete Bridge in America
A Viaduct with a Clear Span of Over 300 Feet
The SciencesApril 19, 1913
English Multicycles for the Blind, A Chapel on a Motor Truck and more