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The Hinged-Hook Can Opener: A Lever That Hooks Under the Far Side
S. O. Church, West Meriden, Connecticut · Public domain (expired patent)
Martin

Dibuat oleh

Martin

6. Oktober 2026NO
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The Hinged-Hook Can Opener: A Lever That Hooks Under the Far Side

The cover of a Lyman fruit can is hard to lift, and devices to ease it were not purely mechanical. S. O. Church of West Meriden, Connecticut, received US 61,161, dated 15 January 1867, for a can opener made of "a peculiarly formed lever": one end turned down and spread as a fulcrum on the cover's flange, the other a handle, and between them a hinged hook that takes the flange on the opposite side, set by a thumb on its arm, so that raising the handle draws the cover off. This rung works out the pull on the flange, then builds the lever and hook from flat bar and lifts a sealed jar lid with it.
Menengah
About 3 hours

Instruksi

1

Pull on the flange

Memuat notebook Jupyter…
2

The sealed can before it

The embedded blueprint seals food by heat. Church's lever opens a sealed cover without prising at it.
3

Read US 61,161

"My invention, which fully overcomes the difficulty, is purely mechanical, and consists in a peculiarly formed lever, constructed so that one end forms the fulcrum to bear upon the upper side of the flange of the cover, while the other end forms a handle, and between which and the fulcrum is hinged a hook which takes hold beneath the flange of the cover upon the opposite side to the fulcrum, so that by raising the handle the cover is easily removed from the can."
4

Make the lever

Cut 200 mm of 25 × 3 mm flat bar. Bend the last 25 mm down at right angles and screw a 40 mm cross-piece of the bar under it: the spread fulcrum.

Material untuk langkah ini:

Besi Strip Baja LunakBesi Strip Baja Lunak1 buah
Sekrup mesinSekrup mesin1 buah
Mur Segi EnamMur Segi Enam1 buah

Alat yang dibutuhkan:

Gergaji BesiGergaji Besi
Ragum MejaRagum Meja
PaluPalu
Bor Tanpa KabelBor Tanpa Kabel
Set Mata BorSet Mata Bor
Kunci InggrisKunci Inggris
Sarung Tangan Kerja KulitSarung Tangan Kerja Kulit
5

Make the hook

Cut 60 mm of the bar, narrow it to 20 mm, and bend its foot inward 10 mm as the flange. Bend a short arm up from its top for the thumb.

Material untuk langkah ini:

Besi Strip Baja LunakBesi Strip Baja Lunak1 buah

Alat yang dibutuhkan:

Gergaji BesiGergaji Besi
Kikir (Kikir Tangan)Kikir (Kikir Tangan)
Ragum MejaRagum Meja
PaluPalu
6

Hinge the hook

Drill the hook and the lever 5 mm, 60 mm from the fulcrum, and join them with an M5 screw, two washers and a nut left just slack.

Material untuk langkah ini:

Sekrup mesinSekrup mesin1 buah
Ring RataRing Rata1 buah
Mur Segi EnamMur Segi Enam1 buah

Alat yang dibutuhkan:

PenitikPenitik
Bor Tanpa KabelBor Tanpa Kabel
Set Mata BorSet Mata Bor
Set obengSet obeng
Kunci InggrisKunci Inggris
Kacamata Pengaman BeningKacamata Pengaman Bening
7

The patent drawing

US 61,161 drawing sheet, public domain (expired patent).
Langkah 7 - Image 1
8

Seal a jar and lift its lid

Fill a Mason jar with water from the kettle at the boil, put on a new flat lid, screw the band on and let it cool for two hours so the lid pulls down. Then remove the band. Rest the fulcrum on one side of the lid, thumb the hook under the opposite edge, and lift the handle with the force meter; note the force.
Langkah 8 - Image 1

Material untuk langkah ini:

Stoples pengalengan (Mason)Stoples pengalengan (Mason)1 buah
AirAir1 buah

Alat yang dibutuhkan:

Ketel komporKetel kompor
Neraca Pegas (Pengukur Gaya)Neraca Pegas (Pengukur Gaya)
Sarung Tangan Tahan PanasSarung Tangan Tahan Panas
9

A hook that slips, binds or bends

Hinged-hook can opener troubleshooting.

Flow

Loading...
10

History and honest limits

**S. O. Church** of West Meriden, Connecticut, assignor to himself and S. S. Wilcox, received US 61,161, dated 15 January 1867. It was designed for the "Lyman Patent Fruit Can" but applies to other cans of similar construction. The hook is spread and curved, with a flange projecting inward; it uses the flange that is formed on the cover's lower edge when the cover is "struck up." His claim covers the lever with its fulcrum, the hook and the handle. **Honest limits.** A Mason jar's flat lid stands in for Lyman's cover, and screws for his pivot. Your forces are the result.

Bahan

6

Alat yang Diperlukan

14

Blueprint terkait

Blueprint ini berbagi pengetahuan — teknik, bahan, atau prinsip

Mason Jar

Mason Jar

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The Revolving Shear Can Opener: A Wheel and a Fixed Cutter That Cut Tin Like Shears

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oleh ForgeNO

Pengerjaan Logam

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CC0 Domain Publik

Cetak biru ini dirilis di bawah CC0. Anda bebas untuk menyalin, memodifikasi, mendistribusikan, dan menggunakan karya ini untuk tujuan apa pun, termasuk komersial, tanpa meminta izin.

Dukung Maker dengan membeli produk melalui Cetak Biru mereka di mana mereka mendapatkan Komisi Pembuat yang ditetapkan oleh Penjual, atau buat iterasi baru dari Cetak Biru ini dan masukkan sebagai koneksi di milik Anda sendiri.

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