Forensic Engineers and Consultants

Tag Archive: Jeff Warren

  1. Staying Connected on the Loop: Two by Two’s Mobile Internet Setup

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    After completing the sit-stand workstation in the guest stateroom of our 47’ Nova Scotia pilothouse trawler, Two by Two, that I reported in a previous blog, I found I needed an internet connection with reasonable speed and reliability.  While almost every marina will give you a password for their WiFi, the quality of most marina connections is unreliable and too slow to effectively work as a forensic engineering consultant. When I tried to download a simple photograph through any type of remote connection to the Irmo, SC office, I could go make a cup of coffee and come back before the download finished.  To upload a group of photographs (more…)

  2. Working on the Waves While Working the Waves…

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    The rumors of my pending retirement have been greatly exaggerated…..

    Ever since I heard about The Great Loop I have wanted to cruise it (www.greatloop.org).  To successfully complete the Loop, one needs to have 3 things: adequate equipment, adequate time, and adequate health. I had the first and third.  To secure the second, I had floated the idea of a two-year sabbatical.  A year to complete any existing cases and a year to execute The Great Loop.

    With the arrival of COVID-19, our firm went to remote work. (more…)

  3. Unguarded Shear Point on Force Tester Amputates Worker’s Finger

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    A worker was injured while testing gas springs similar to the type that hold the hatchback of an SUV open. The hazard that injured the worker was an unguarded shear point. The tester contained a mounting plate that was raised and lowered by a pneumatic cylinder.

    The pneumatic cylinder lowered the mounting plate while the worker’s fingers were in the hazardous, unguarded shear point. (more…)

  4. Case Study: Fatality Servicing Unsupported Excavator Boom

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    A mini-excavator at a job site developed a leak at a hydraulic fitting at the base of the cylinder that raises and lowers the boom. A subcontractor foreman at the site raised the boom to search for the leak. The foreman found and attempted to tighten the leaking fitting. When he did, the fitting separated from the base of the cylinder, releasing the hydraulic pressure that held the boom aloft. The boom fell and the bucket struck a nearby superintendent for the general contractor.

    (more…)

  5. Defective Vertical Baler Causes Serious Crush Injury to Operator’s Arm

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    I recently worked on an interesting case involving a box baler. An employee of a butcher shop put some empty cardboard boxes in a vertical box baler and pushed the control switch to compact the boxes. After the 30 by 60 inch platen weighing 851 pounds returned to its raised position, the employee reached into the open space above the bottom door on the baler and began to clear cardboard from the bale tie slots in the bottom of the raised platen. Suddenly, and without warning, the steel pin attaching the platen to the raised hydraulic cylinder rod failed. The heavy steel platen fell and crushed his arm which was outstretched over the baler door into the compaction space.

    (more…)

  6. Children Will Fall At Playgrounds. What Shall We Do To Protect Them? A Multipart Blog Series – Part III: An Overview of Selected Playground Safety Technologies

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    Welcome to the third and final post in our multipart series of blog posts about a young boy’s fall and serious injury at a public playground. In our first post we gave a brief overview of the incident and our investigation. In the second post we discussed some of the safety standards applicable to public playgrounds. In this post, we will examine some of the impact-absorbing playground surfaces available to protect children at playgrounds from injury. If you would like to read the first two posts, they are available here and here.
    (more…)

  7. Children Will Fall At Playgrounds. What Shall We Do To Protect Them? A Multipart Blog Series – Part II: A Brief Summary of Playground Safety Standards

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    Welcome to the second part in our multipart blog series examining a young boy’s fall and injury at a public playground. If you missed the first part in this series, click www.warrenforensics.com/2017/10/11/children-will-fall-at-playgrounds-what-shall-we-do-to-protect-them-a-multipart-blog-series-part-i/ to read it. In this post, we will highlight some resources that designers of public playgrounds can use to help ensure their designs are reasonably safe. (more…)

  8. Children Will Fall At Playgrounds. What Shall We Do To Protect Them? A Multipart Blog Series – Part I

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    A 5-year old boy was severely injured at a public playground when he fell through a second floor opening around a fireman’s pole in a playhouse. He fell more than seven feet and struck a bare concrete floor. We are thankful that he eventually recovered from his injuries. The person who designed and built the playground was accused of negligence. A lawsuit ensued, and eventually settled in favor of the boy. (more…)

  9. Injury Involving a Capstan Winch

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    A capstan winch uses a mechanically powered rotating cylinder, called a capstan, to apply pulling force through a rope. When the rope is looped around the rotating capstan and tightened, friction between the rope and capstan allows the winch to apply force to pull a load. A typical capstan winch is shown in Figure 1 below. (more…)

  10. Warren Forensics Celebrates 20 Year Anniversary

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    It makes me proud as the founder of Warren Forensics to announce that we have crossed another milestone in the history of our company. On February 1, 2017, we will have been in business for twenty years. I am particularly proud of our team of professional engineers and consultants who have worked on your forensic engineering cases and communicated, with authority, fact-based opinions you could trust. (more…)

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