Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 137,270 pages of information and 220,098 images on early companies, their products and the people who designed and built them.
Woodside, Poynton, Cheshire. Telephone: Poynton 2261-2-3. Cables: "Windak, Poynton, London"
1947 British Industries Fair Advert for Sports Wear and Electric Clothing. Manufacturers of Specialist Sportswear: Golf, fishing, Shooting, Ski-ing, Climbing, Rainwear and Flying Suits, etc., Electrically Heated Flying suits, Safety Blankets, Medical Accessories, Camera, Muffs, Foot Muffs, Gloves, etc. (Textiles Section - Earls Court, Ground Floor, Stand No. 241) 
1953 Advert on this page. 
1960 Advert for Low Voltage Electric Blanket.