Location History:
- Basford, GB (1997)
- Nottingham, GB (2001)
Company Filing History:
Years Active: 1997-2001
Title: The Innovations of David John James
Introduction
David John James is a notable inventor based in Basford, GB. He has made significant contributions to the field of engineering, particularly in the development of advanced recoil systems for firearms. With a total of two patents to his name, his work reflects a deep understanding of mechanical systems and their applications.
Latest Patents
One of David's latest patents is a device for locating a projectile in a barrel. This innovative recoil system for field-type guns automatically adjusts the recoil distance of the barrel according to the angle of elevation of the gun barrel relative to the ground. The system includes a recoil cylinder in fixed relationship to the gun barrel and a piston rod operably connected to a two-art piston valve within the cylinder. The rotational position of one of the valve parts is controlled by the angular position of the piston rod about its axis, while the rotation position of the second valve part is controlled by its axial piston within the recoil cylinder bore. Fluid flow orifices are defined between the first and second valve parts, with the area of the orifices determined by the rotational positions of the two valve parts relative to each other. As barrel elevation increases, the piston rod is rotated via a camming device, which is itself moved by a tooth riding in a non-axial and non-linear slot in the camming device. The higher the barrel elevation, the smaller the orifice area defined between the two valve parts, resulting in a shorter recoil distance allowed before fluid flow is terminated and barrel recoil is arrested.
Career Highlights
David John James has built a successful career at Royal Ordnance Plc, where he has been instrumental in developing innovative solutions for military applications. His expertise in recoil systems has positioned him as a key figure in the engineering community.
Collaborations
Throughout his career, David has collaborated with talented individuals such as Derrick Hewkin and Martin Edwy Buttolph. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.
Conclusion
David John James exemplifies the spirit of innovation in engineering through his patents and contributions to recoil systems. His work continues to influence the field and showcases the importance of collaboration in driving technological advancements.