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The Hinged-Hook Can Opener: A Lever That Hooks Under the Far Side
Martin

Dicipta oleh

Martin

6. Oktober 2026NO
29
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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.
Pertengahan
About 3 hours

Arahan

1

Pull on the flange

Memuatkan buku nota 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.

Bahan untuk langkah ini:

Bar Rata Keluli LembutBar Rata Keluli Lembut1 keping
Skru mesinSkru mesin1 keping
Nat HeksagonNat Heksagon1 keping

Alatan diperlukan:

Gergaji BesiGergaji Besi
Ragum BangkuRagum Bangku
TukulTukul
Gerudi Tanpa WayarGerudi Tanpa Wayar
Set Mata GerudiSet Mata Gerudi
Sepana boleh larasSepana boleh laras
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.

Bahan untuk langkah ini:

Bar Rata Keluli LembutBar Rata Keluli Lembut1 keping

Alatan diperlukan:

Gergaji BesiGergaji Besi
Kikir (Kikir Tangan)Kikir (Kikir Tangan)
Ragum BangkuRagum Bangku
TukulTukul
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.

Bahan untuk langkah ini:

Skru mesinSkru mesin1 keping
Sesendal RataSesendal Rata1 keping
Nat HeksagonNat Heksagon1 keping

Alatan diperlukan:

Penebuk PusatPenebuk Pusat
Gerudi Tanpa WayarGerudi Tanpa Wayar
Set Mata GerudiSet Mata Gerudi
Set pemutar skruSet pemutar skru
Sepana boleh larasSepana boleh laras
Cermin Mata Keselamatan JernihCermin Mata Keselamatan Jernih
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

Bahan untuk langkah ini:

Balang pengetinan (Mason)Balang pengetinan (Mason)1 keping
AirAir1 keping

Alatan diperlukan:

Cerek dapurCerek dapur
Meter Daya (Neraca Spring)Meter Daya (Neraca Spring)
Sarung Tangan Tahan HabaSarung Tangan Tahan Haba
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

Alatan Diperlukan

14

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.

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