Curved Beam Analysis on a Hand-Forged, Non-Rectangular Cross Section

In a recent post I discussed curved beam analysis with a rectangular cross section, and as a follow-up a comparison of that type of analysis with finite element results. Many curved beams, such as the lifting hook shown above, do not have rectangular cross-sections. This is an interesting topic, not only because of the engineering … Continue reading Curved Beam Analysis on a Hand-Forged, Non-Rectangular Cross Section

Vulcan Pile Hammers: Adaptability, Portability, Flexibility, Sensibility and the Ability to Get the Job Done on Time

We've featured ads that Vulcan put in Engineering News-Record, but this one was a flyer that Vulcan put out about a successful application of a Vulcan #2 in Memphis, Tennessee. The hammer was run using a Littleford Tank Heater to generate the steam. Vulcan flyer for a #2 driving piles in Memphis, Tennessee, in the … Continue reading Vulcan Pile Hammers: Adaptability, Portability, Flexibility, Sensibility and the Ability to Get the Job Done on Time

This is the Warrington-Vulcan Pile Hammer

Another ad for Vulcan in Engineering News-Record, this in the 5 July 1928 issue. Vulcan touted the "heavy ram/low striking velocity" feature here, had done so in the past, and would do so again for many years. Specifications for these hammers can be found here. Other ads from the same era: Driving Speed That Makes … Continue reading This is the Warrington-Vulcan Pile Hammer

Stresses for Curved Beams with Rectangular Cross Sections

In the early 1960's Vulcan became involved with the Sand Drain hammers. Part of that effort was developing a servo-pneumatic hook block to grab and lift the hammer and everything else what was attached to it. The device is shown above. Vulcan received a patent for it. Here we'll concentrate on one aspect: the design … Continue reading Stresses for Curved Beams with Rectangular Cross Sections

Using a Vulcan #2 for Residential Piling

Most residences do not require pile foundations, but some do, generally because of the combination of the size of the house and the geotechincal stratigraphy (read soft.) In Vulcan's history this is generally associated with the New Orleans area, but recently a Vulcan #2 was used to drive residential piling in Connecticut. The whole post … Continue reading Using a Vulcan #2 for Residential Piling

“Much Favorable Comment” for the Vulcan Extractor

An ad in Engineering News-Record, 8 October 1931, for the Vulcan Pile Extractor.  It was used to extract arch web Lackawanna sheeting by the P.J. Kennedy & Co. of Holyoke, MA.  Vulcan touted the advantages of a "single purpose machine" (as opposed to MKT's multipurpose hammer/extractors.  MKT must have gotten the message, they developed the … Continue reading “Much Favorable Comment” for the Vulcan Extractor

When the Vulcan #2 Beat the MKT 9B2

Above is a job comparison from 1926, put together by the firm Proctor and Cleghorn of Santa Rosa, CA, showing the Vulcan #2--to say nothing of the #1 also--significantly outperforming the MKT 9B2 (which they superseded with the 9B3) driving concrete piles.  Vulcan obtained this data from Harron, Rickard & McCone, Vulcan's dealer in California. … Continue reading When the Vulcan #2 Beat the MKT 9B2

How Vulcan Extractors Work

Vulcan was generally not hesitant to include information on the cycle workings of its air/steam hammers, but for some reason never included similar information on its extractors.  Above is a diagram from 1940 which shows how this is done. Basically we start with the view on the left.  Air or steam is admitted through inlet … Continue reading How Vulcan Extractors Work

Vulcan Hammers: Specifications and Information

One thing Vulcan representatives were asked for frequently was a "spec sheet" for a particular hammer.  This is an online answer to that question.  Our pages include specifications, general arrangements of the hammers, photos and usually some history behind the hammer model.  We trust that this will be helpful to you in servicing your existing … Continue reading Vulcan Hammers: Specifications and Information

Vulcan’s Blow Count Specifications

The durability and longevity of Vulcan pile hammer is something that is seldom replicated in just about any other manufactured product.  Since pile driving is self-destructive on the equipment, this is a remarkable achievement, but it should be tempered by the fact that it's possible to render a Vulcan hammer inoperable by the way it's … Continue reading Vulcan’s Blow Count Specifications