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KECANTIKAN & KESEJAHTERAAN
KRAFTANGAN
BUDAYA & SEJARAH
HIBURAN
ALAM SEKITAR
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KEJURUTERAAN TERBALIK
SAINS
SUKAN
TEKNOLOGI
BOLEH PAKAI
The Pivot-Point Can Opener: A Spike at the Centre, a Blade Set to the Size
A knife driven round a can top wanders, and leaves a ragged hole of no particular size.
Charles Messenger of Cleveland, Ohio, received US 70,010, dated 22 October 1867, for a tool for opening sheet-metal cans: a plate fixed in a handle, a pointed rod at its end thrust through the centre of the top as a pivot, and a blade slipped on the rod through one of several holes in the plate, held by a ring; turning the handle round cuts a round hole, small or large.
This rung works out the hand force for each hole size, then builds the plate, pivot and blade from steel and opens a can.
Pertengahan
About 3 hours
Arahan
1
1
Hole size and hand force
Hole size and hand force
Memuatkan buku nota Jupyter…
2
2
A turning cutter before it
A turning cutter before it
The embedded blueprint cuts tin with a turning wheel against a fixed cutter. Messenger turns the whole tool round a centre spike.
3
3
Read US 70,010
Read US 70,010
"The apparatus is held in the right hand, and the point C' thrust through the centre of the top of the can. The handle is then brought down so as to cause the blade to penetrate the cover; the instrument is turned around the circumference of the top, the point acting as a pivot, and the handle as a lever; the blade, as the instrument turns, will cut out a round hole through which the contents of the can may be emptied."
4
4
Make the plate
Make the plate
Cut 90 mm of 25 × 3 mm flat bar. Drill a 5 mm hole 6 mm from one end for the rod, and three 4 × 8 mm slots at 30, 45 and 60 mm from it for the blade. File the slots square.
Bahan untuk langkah ini:
Bar Rata Keluli Lembut1 kepingAlatan diperlukan:
Gergaji Besi
Ragum Bangku
Penebuk Pusat
Gerudi Tanpa Wayar
Set Mata Gerudi
Set Kikir Jarum5
5
Make the rod and blade
Make the rod and blade
Cut 100 mm of 5 mm steel rod, file one end to a sharp point, and thread the other M5. Cut the blade from flat bar, drill it for the rod, and file its lower end to a cutting edge.
Bahan untuk langkah ini:
Bar Bulat Keluli Lembut1 kepingBar Rata Keluli Lembut1 kepingAlatan diperlukan:
Gergaji Besi
Kikir (Kikir Tangan)
Set pemotong ulirGerudi Tanpa WayarSet Mata Gerudi
Batu asah6
6
Assemble
Assemble
Push the rod through the plate's end hole so the point stands 12 mm below. Slip the blade on the rod and down through a slot; hold both with a nut on the rod's thread. Fit the plate into a hardwood handle with epoxy.
Bahan untuk langkah ini:
Nat Heksagon1 keping
Pasak kayu keras1 keping
Epoksi dua komponen1 kepingAlatan diperlukan:
Gerudi Tanpa WayarSet Mata Gerudi
Playar Muncung Rata7
7
The patent drawing
The patent drawing
US 70,010 drawing sheet, public domain (expired patent).
8
8
Open a can at two sizes
Open a can at two sizes
Stand a sealed can on the kitchen scale. Thrust the point into the centre, bring the handle down and turn it round; read the peak load and time a full circle. Move the blade to another slot and repeat.
Bahan untuk langkah ini:
Tin1 kepingAlatan diperlukan:
Penimbang Dapur Digital
Jam Randik
Sarung Tangan Kerja Kulit9
9
A cutter that wanders, tears or slips
A cutter that wanders, tears or slips
Pivot-point can opener troubleshooting.
Flow
Loading...
10
10
History and honest limits
History and honest limits
**Charles Messenger** of Cleveland, Ohio, received US 70,010, dated 22 October 1867, for opening oyster, paint and fruit cans. The ring slides on the rod and can be removed to change the blade; a knife with radial arms, each with two sharp edges, gives a spare edge when one is dull. His claim covers the rod, blade and ring in combination with the plate.
**Honest limits.** A nut stands in for his sliding ring, and an unhardened blade for a steel one. Your loads and times are the result.
Bahan
6- 1 kepingPemegang Tempat
- 1 kepingPemegang Tempat
- 1 kepingPemegang Tempat
- 1 kepingPemegang Tempat
- 1 kepingPemegang Tempat
- 1 kepingPemegang Tempat
Alatan Diperlukan
13- Pemegang Tempat
- Pemegang Tempat
- Pemegang Tempat
- 1 vendor sell this, none ship to you yetPemegang Tempat
- Pemegang Tempat
- Pemegang Tempat
- Pemegang Tempat
- Pemegang Tempat
- Pemegang Tempat
- Pemegang Tempat
- Pemegang Tempat
- Pemegang Tempat
- Pemegang Tempat
Blueprint ini membuat
Blueprint berkaitan
Blueprint ini berkongsi pengetahuan — teknik, bahan atau prinsip
CC0 Domain Awam
Blueprint ini dikeluarkan di bawah CC0. Anda bebas menyalin, mengubah, mengedar, dan menggunakan karya ini untuk sebarang tujuan, tanpa meminta kebenaran.
Sokong Pembuat dengan membeli produk melalui Blueprint mereka di mana mereka memperoleh Komisen Pembuat ditetapkan oleh Penjual, atau cipta iterasi baru Blueprint ini dan sertakan ia sebagai sambungan dalam Blueprint anda sendiri untuk berkongsi hasil.