If you ever wonder what makes the WMC SC- Sewing Machine Secrets so popular among sewing enthusiasts, you’re not alone. This ...

The PR bobbin and cat's paw were developed for smooth passages through rod guides, as well as smooth transitions back out ...

A 1900s Singer sewing machine represents a major shift in how we create and consume clothing.

In 1845, he built his first sewing machine and soon constructed an improved model, which he carried to the Patent Office in Washington to apply for a patent. He received the fifth United States patent ...

Thrust force ripple, including no-load detent force and electromagnetic thrust ripple, worsens the precision of linear permanent magnet machine (LPMM) control system. Asymmetrical current injection ...

Hybrid excited (HE) machines are a potential solution for wind power generation for their high efficiency from permanent magnet (PM) and good flux regulation ability from flexible field current.