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Plate Shears: Bench Shears Made from a Flat File (Shop Notes, 1919)
Bench shears for sheet metal too heavy for hand snips: a 14 in flat file, ground and sharpened, works as a lever knife bolted against a fixed cutter forged from scrap steel and fastened to the bench.
Source: Popular Mechanics Shop Notes for 1919, p. 3271. Unknown: cutter and bolt sizes. Picture: the book's photo and drawing.
Kati
Unknown
Maagizo
1
1
Make the moving knife
Make the moving knife
Take a 14 in flat file. Grind one side smooth and sharpen part of the tip and one edge. Heat it cherry red and punch the bolt hole.
Vifaa kwa hatua hii:
Tupa ya chuma1 14 in flat fileZana zinazohitajika:
Kisagia cha meza
Jiko la Kufua
Koleo
Kitoboa cha moto
Nyundo2
2
Forge the fixed cutter
Forge the fixed cutter
Forge the fixed cutter from part of an old plowshare or other suitable scrap steel, bent as in the drawing so it can be screwed to the bench, with a hole for the pivot bolt.
Vifaa kwa hatua hii:
Fimbo ya feleji ya kaboni (0.6 % C)1 scrap steelZana zinazohitajika:
Jiko la KufuaKoleoNyundoKitoboa cha moto3
3
Assemble on the bench
Assemble on the bench
Screw the fixed cutter to the bench and bolt the file knife to it. Use a locknut on the bolt, or rivet the end over.
Vifaa kwa hatua hii:
Bolti ya kichwa cha pembe sita - daraja 8.81 kipande
Nati ya pembe sita2 nut and locknut
Parafujo za mbao1 kipandeZana zinazohitajika:
Spana inayoweza kurekebishwa
Bisibisi bapaVifaa
5- 1 14 in flat fileKishikilia Nafasi
- 1 scrap steelKishikilia Nafasi
- Kishikilia Nafasi
- 2 nut and locknutKishikilia Nafasi
- 1 kipandeKishikilia Nafasi
Mchoro huu unatengeneza
CC0 Umma Wote
Mchoro huu umetolewa chini ya CC0. Uko huru kunakili, kubadilisha, kusambaza, na kutumia kazi hii kwa madhumuni yoyote, bila kuomba ruhusa.
Saidia Mtengenezaji kwa kununua bidhaa kupitia Mchoro wao ambapo wanapata Kamisheni ya Mtengenezaji iliyowekwa na Wachuuzi, au unda marudio mapya ya Mchoro huu na uiunganishe kama kiungo katika Mchoro wako kuchangia mapato.