A set of three industrial safety notices titled Abrasive Wheel Regulations 1970, which were a statutory requirement in British factories and workshops under the UK Factories Act. Each document consists of a pre-printed paper form with specific technical parameters entered by hand in ink. The notices are housed in matching green-painted wooden frames featuring pre-drilled holes for wall or machinery mounting.
The three notices provide specifications for the following machines:
1. Wolf Twin Stone, Machine Number ZC 3, wheel size 8 inches x 3/4 inch, machine spindle speed 3000 RPM.
2. Milford, Machine Number TSB 547, wheel size 10 inches x 1 1/2 inches, annotated with 1 1/4 hole.
3. Rowland, Machine Number TSB 643, wheel size 19 inches x 2 1/2 inches, pulley diameter on wheel spindle 2 1/2 inches.
Width: approximately 10 – 12 inches per frame.
Dimensions: 15 x 11”
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