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
In the summer of 1966 Vulcan acquired the assets of the Stone Drilling Machine Company of Daisy, TN, north of Chattanooga. The principal had passed away. The product was a water well drill which stone had manufactured for many years. It was another attempt on Vulcan's part to diversify its product line; even with the … Continue reading Stonedril Water Well Drills
In some manufacturers' literature, you'll see the "section modulus" of leaders as part of the specifications. (Ironically, Vulcan never put this in their specifications.) So what is this? How is it derived? And how is it useful? Are there any things we need to understand in using it? (The answer to the last is "of … Continue reading Section Modulus of Pile Hammer Leaders
Vulcan always tried to be responsive to the needs of its customers. Sometimes, however, the way they wanted to do things got in the way of progress, and the Key Ball Cushion Ring was a good example of that in action. Vulcan had used the "standard pot" to hold its cushion material from the beginning … Continue reading Key Ball Cushion Ring
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
In this post, we will see the book Strength of Materials by N. M. Belyaev. About the book: The new edition of Strength of Materials by N. M. Belyaev has been published after 11 years. In 33 years that lapsed between the publication by N. M. Belyaev of the first edition in 1932 and the last fourteenth […]Strength … Continue reading Strength of Materials – Belyaev — Mir Books
It's interesting how many impact pile hammers are designed to "look like a Vulcan." Obviously there are those like Conmaco and Raymond that were "offshoots" of the successful Warrington-Vulcan and Super-Vulcan hammers. All of these hammers are or were air-steam operated hammers. Others have used the ram/column arrangement to develop hydraulic impact hammers, with varying … Continue reading A Diesel Hammer that “Looks Like a Vulcan?”
In 1988 Vulcan personnel visited what was then Leningrad to view the operation of a Soviet variable-eccentric moment vibratory hammer. The account of that is here. This is the field service manual for the hammer. A closeup of the exciter and suspension, clamped to the pile. As is common in Europe, the sheets are picked … Continue reading Field Service Manual for Soviet B402/V402 Vibratory Hammer
Although Vulcan was best known for products based on sand castings, many of Vulcan products--especially those produced by the Special Products Division--were fabricated. An important operation in fabrication is plate bending. Although plate bending is usually associated with sheet metal formation like Vulcan's vibratory power packs, Vulcan also bent plate which is thicker than normal … Continue reading Minimum Bend Radius for Plate Bending
In my last post Hard Currency, Soft Currency and Dollar Hegemony I discussed the effects of sanctions and currency restrictions could have to undermine the unique status of USD. In this post I'll take a look at something that is becoming fashionable to believe in this country: the idea that we should seize assets of Russian … Continue reading Taking Property is Something You Shouldn’t Do Lightly
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