The Vulcan Extractor Photo that Made a Civil Engineering Textbook

Vulcan hammers appear often in geotechnical engineering textbooks and other reference material.  It's rare that it would happen outside of that discipline, but happen it did. In 1960 the first edition of Mechanics of Materials by Archie Higdon, Edward H Ohlsen and William B. Stiles was published with the 1200A extractor photo shown above.  The … Continue reading The Vulcan Extractor Photo that Made a Civil Engineering Textbook

Indicator Devices and Cards for Vulcan Hammers

The indicator card, and the devices that produced them, have been around about as long as there have been steam engines.  The basic idea is simple: as the piston of the engine moved, a pressure indicator moved a needle and pen up and down on a paper (usually a rotating drum) and produced what's called … Continue reading Indicator Devices and Cards for Vulcan Hammers

Raymond-Vulcan 80C Hammer: Specifications and Information

As was the case with its 65C, Raymond made multiple improvements to the Vulcan 80C hammer, but used a slightly different approach. Probably because the patents on the Super-Vulcan hammers hadn't run when Raymond saw the need to modify the Vulcan hammers, Raymond started by extensive modifications on the Vulcan 80C, which are similar to … Continue reading Raymond-Vulcan 80C Hammer: Specifications and Information

Pile Driving in Old Havana, Cuba

Without a doubt, one of the most interesting photos Vulcan had in its collection was this one, taken of a Vulcan #0 driving reinforced concrete sheet piles 500 mm x 600 mm x 21.9 m long (20" x 24" x 72') for the New Harbor Wall in Havana, Cuba.  The piles are being driven off … Continue reading Pile Driving in Old Havana, Cuba

Product Literature Cover for Soviet SP-88 Concrete Pile Cutter @sovietvisuals

An interesting example of late Soviet commercial art (no, that's not an oxymoron) is this one, the cover to the literature for the SP-88 concrete pile cutter, from 1989.  The array of cubes on the cover represents square concrete piles; the one in the lower left hand corner has been cut.  An interesting graphic presentation. … Continue reading Product Literature Cover for Soviet SP-88 Concrete Pile Cutter @sovietvisuals

Raymond 65C Hammer: Specifications and Information

It's evident that Vulcan had some difficulty in getting the right combination of economy, operating pressure and configuration with its 65C and 65CA hammers.  Did Raymond, which made many of its own designs of Vulcan style hammers, do any better? Based on its experience with the Vulcan differential hammers, Raymond designed several differential-acting hammers, including … Continue reading Raymond 65C Hammer: Specifications and Information

Concrete Pile Cutter SP-88 Operations Manual

One of the more interesting products that Vulcan spent a great deal of time on but was not able to actively pursue was the concrete pile cutter.  The technology for the cutter was developed by two Soviet institutes: VNIIstroidormash in Moscow and Dalniis in Vladivostok.  How Vulcan obtained the rights to the patent was an … Continue reading Concrete Pile Cutter SP-88 Operations Manual

Russian Hydraulic Demolition Hammers

Yu. V. Dmitrevich, VNIIstroidormash L.V. Erofeev, Stroifundamentservice V.A. Nifontov, Stroifundamentservice D.C. Warrington, Vulcan Iron Works Inc. This article was originally published in 1993 or 1994.  The graphic above shows a 9 kJ unit mounted on an excavator. Introduction Hydraulic demolition hammers mounted on hydraulically powered excavators are becoming increasingly widespread in world practice. They allow … Continue reading Russian Hydraulic Demolition Hammers

An Old Idea Comes Back: China-US Arbitration in a Neutral Country

In his assessment of the prospects of US-China relations, former Australian Prime Minister Kevin Rudd makes the following suggestion to resolve intellectual property (IP) issues: Intellectual-property protection, however, is deeply problematic. Previous agreements reached under US president Barack Obama’s administration could be reconstituted. But the jurisdictional enforcement of breaches is still hopeless. One possible mechanism … Continue reading An Old Idea Comes Back: China-US Arbitration in a Neutral Country

NPO VNIIstroidormash: Soviet Construction Equipment Technology

On this site I have posted several articles on Soviet (and after that Russian) pile driving equipment, such as diesel hammers, concrete pile cutters, and vibratory and impact-vibration hammers. These are very specialised topics, even by construction industry standards; here I want to present some photos of more general interest to you heavy equipment fans. … Continue reading NPO VNIIstroidormash: Soviet Construction Equipment Technology