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Side-Knife Can Opener: Round Holes and Long Ones With One Tool
A circular opener makes round holes only, too small for a flat sardine box.
F. S. Wyman of Chicago received US 80,326, dated 28 July 1868, for a side knife rigidly attached to the adjustable plate of a circular can opener, "by means of which square and longitudinal openings may be made in fruit-cans with the same tool which is used to make round holes": a slotted plate with a pointed pivot, and a plate sliding in the slot carrying both the circular knife and the side knife, fixed by a set screw.
This rung compares round and long openings, then builds the plate, pivot and both knives and cuts each kind.
Intermedio
About 3 hours
Istruzioni
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1
Round against long
Round against long
Caricamento del notebook Jupyter…
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2
A circular opener before it
A circular opener before it
The embedded blueprint cuts round holes about a spike. Wyman adds a side knife to the sliding plate for straight cuts.
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3
Read US 80,326
Read US 80,326
"A represents a slotted plate, fitted in a handle, B, and having a pointed pivot, E, used as an axis for the knife D, the same as in the patent of S. D. Lecompte, of September 19, 1865, and has a plate, F, arranged to run in the slot B' and support the knife D, held in place by a set-screw, H, when moved in said slot to suit the semi-diameter of the opening to be made."
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4
Make the slotted plate
Make the slotted plate
Cut 120 mm of 25 × 3 mm flat bar. Saw and file a 5 mm slot 70 mm long in it, starting 20 mm from one end.
Materiali per questo passaggio:
Piatto di acciaio dolce1 pezzoStrumenti necessari:
Seghetto per metalli
Morsa da banco
Trapano a batteria
Serie di punte da trapano
Set di lime ad ago
Righello5
5
Fit the pivot
Fit the pivot
Drill the plate's end 5 mm. File an M5 screw to a sharp point and fix it there with a nut, point down.
Materiali per questo passaggio:
Viti da metallo1 pezzo
Dado esagonale1 pezzoStrumenti necessari:
Trapano a batteriaSerie di punte da trapano
Lime (lima a mano)
Chiave regolabile a rullino6
6
Make the sliding plate and knives
Make the sliding plate and knives
Cut a 30 × 22 mm plate of flat bar. Cut a pointed circular knife and a straight side knife from 1 mm sheet; epoxy the first under its centre and the second along its side so it lies close to the slotted plate's edge.
Materiali per questo passaggio:
Piatto di acciaio dolce1 pezzo
Lamiera di acciaio dolce1 pezzo
Resina epossidica bicomponente1 pezzoStrumenti necessari:
Seghetto per metalli
Cesoie da lattoniereLime (lima a mano)
Pietra per affilare
Occhiali di sicurezza trasparenti7
7
Set screw and handle
Set screw and handle
Drill the sliding plate for an M5 screw through the slot with a washer and nut. Fit a hardwood handle with epoxy.
Materiali per questo passaggio:
Viti da metallo1 pezzo
Rondella piana1 pezzoDado esagonale1 pezzo
Tasselli di legno duro1 pezzoResina epossidica bicomponente1 pezzoStrumenti necessari:
Trapano a batteriaSerie di punte da trapanoChiave regolabile a rullino8
8
The patent drawing
The patent drawing
US 80,326 drawing sheet, public domain (expired patent).
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9
Cut a round and a long opening
Cut a round and a long opening
Cut a round hole in one sealed can about the pivot. On a second, cut four straight sides with the side knife, rocking the handle along each; time both and measure the openings.
Materiali per questo passaggio:
Barattolo di latta1 pezzoStrumenti necessari:
Cronometro
Calibro digitale da 6 pollici
Guanti da lavoro in pelle10
10
Knives that slip, bind or wander
Knives that slip, bind or wander
Side-knife can opener troubleshooting.
Flow
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11
History and honest limits
History and honest limits
**F. S. Wyman** of Chicago received US 80,326, dated 28 July 1868. The plate and side knife should be one piece of steel, with a nib guiding it in the slot, the knife tempered to hold an edge. He did not claim the circular opener, patented by S. D. Lecompte on 19 September 1865, nor the side knife broadly, a similar device having been patented by S. P. Chapin on 17 July 1866; he claimed the side knife rigidly attached to the adjustable plate.
**Honest limits.** Epoxy stands in for his one-piece steel plate and knife, and nothing is tempered. Your times are the result.
Materiali
8- 1 pezzoSegnaposto
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Strumenti richiesti
14- Segnaposto
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- 1 vendor sell this, none ship to you yetSegnaposto
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Questo progetto realizza
Blueprint correlati
Questi blueprint condividono conoscenze — tecniche, materiali o principi
The Pivot-Point Can Opener: A Spike at the Centre, a Blade Set to the Size
di Martin
CIBO E BEVANDE
30
0
0
0
0
0
The One-Piece Sheet Can Opener: Point and Blade Struck From the Blank
di Mary
CIBO E BEVANDE
33
0
0
0
0
0
The Shouldered-Blade Can Opener: The Shoulders Are the Fulcrum
di Forge
Lavorazione dei metalli
31
0
0
0
0
0
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