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Face Shield with a Replaceable Window: Flood, 1946
A face shield is a transparent window hung in front of the face from a headband. Shields get pitted and worn and must be replaced, and if the fastenings are fixed to the shield they are thrown away with it. Oscar S. Flood of Chicago patented a remedy in 1946, US 2,406,598: punch a row of holes along the shield's top edge and fasten it to the visor with snap fasteners, or with a spring-steel strip whose tongues pass through the visor. A worn shield is unsnapped and a new one put in, and all the hardware stays on the visor.
Beginner
1 hour
Instructions
1
1
Headband and visor
Headband and visor
Pivot the visor to the sides of an adjustable headband so it can be swung up or down.
Materials for this step:
Adjustable Headband1 piece
Pivoted Visor1 pieceTools needed:
Screwdriver Set2
2
Shield
Shield
Cut the transparent shield, punch a row of holes along its top edge spaced to match the fasteners on the visor, and bind the bottom and side edges with metal or fabric.
Materials for this step:
Transparent Shield Sheet1 piece
Edge Binding Strip1 as requiredTools needed:
Utility Knife
Hole Punch
Combination Pliers3
3
Fasten
Fasten
Fix the female parts of the snap fasteners to the visor. Push each male part through a holding strip inside the visor and through a hole in the shield, and snap it home. (Alternatively, punch inward projections in the visor and lock the shield with a spring-steel strip whose tapered tongues pass through the visor.)
Materials for this step:
Snap Fastener Kit (Heavy Duty)1 piece
Spring Steel Strip1 as requiredMaterials
6- 1 piecePlaceholder
- 1 piecePlaceholder
- 1 piecePlaceholder
- 1 as requiredPlaceholder
- Placeholder
- 1 as requiredPlaceholder
Tools Required
4- Placeholder
- Placeholder
- Placeholder
- Placeholder
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