Francis A May

Title: Francis A. May: Innovations in Mine Safety and Drilling Technology

Introduction

Francis A. May is a prolific inventor based in Pittsburgh, Pennsylvania, known for his significant contributions to the fields of mining and drilling technology. With a total of five patents to his name, May has developed groundbreaking innovations that enhance safety and efficiency in challenging work environments.

Latest Patents

One of Francis A. May's notable patents is the **Trolley Pole**, designed for electrically propelled vehicles operating in underground mines. This invention features a hollow trolley pole with a passageway running from its upper to lower end. A trolley wire contact shoe slides along a suspended electric power line, while a robust electrical conductor is safely enclosed within an impact-resistant flexible conduit. This design ensures protection against physical damage and enables a continuous flow of current to the vehicle's propulsion motor. The accompanying circuit breaker enhances safety by interrupting power in case of shorts or overloads.

Another significant patent by May is the **Bearing Seal for a Drill Head Assembly**. This invention incorporates a rotatable drill retaining member housed within a drill casing. It features a unique bearing seal designed to accommodate lateral and vertical thrust forces while protecting the main bearing. The design allows for movement, ensuring the seal remains in contact with its supporting surface, thus extending the service life of the drill assembly.

Career Highlights

Francis A. May is associated with the Consolidation Coal Company, where he has played a critical role in developing innovative technologies that address real-world challenges in mining and drilling operations. His patents reflect his commitment to improving the safety and efficiency of these industries.

Collaborations

Throughout his career, May has collaborated with notable colleagues, including Will B. Jamison and William N. Poundstone. These partnerships have fostered an environment of innovation, enabling the development of advanced solutions that address the complexities of mining and drilling.

Conclusion

Francis A. May stands out as an influential inventor whose work has made significant strides in mine safety and drilling technology. His patented inventions exemplify a dedication to enhancing operational safety and efficiency in challenging environments, leaving a lasting impact on the industry and paving the way for future advancements.