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Brass Paper Fasteners: a Folded Strip under a Domed Cap
A paper fastener is a soft brass split pin with a round head: push it through punched paper and bend its two legs apart to hold the sheets, or to make a joint that turns. George W. McGill patented it in 1866. Fold thin brass strip over a rod into two legs of slightly different length, and crimp a small domed cap over the fold.
The picture: brass paper fasteners, one without its cap showing the folded strip.
初学者
Two hours
说明
1
1
Cut strips and discs
Cut strips and discs
Cut thin brass sheet into strips about 3 mm wide (step 5), and scribe and cut small discs about 9 mm across for the caps.
此步骤所需材料：
黄铜板1 个所需工具：
铁皮剪
两脚规
直尺2
2
Fold the legs
Fold the legs
Fold each strip over a thin rod so the two legs lie side by side, one a little shorter than the other. File the leg ends to a blunt point.
所需工具：
铁棒
平口钳
什锦锉套装3
3
Dome the caps
Dome the caps
Punch a slot in the middle of each disc for the legs, then dome the disc by hammering it into a shallow hollow in a hardwood block with the ball peen.
所需工具：
皮革打孔器
硬木块
圆头锤4
4
Assemble
Assemble
Thread the legs through the cap from the domed side so the fold sits inside the dome, and crimp the cap's rim round the fold with the pliers.
所需工具：
平口钳5
5
Strip length
Strip length
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