SANAT
GÜZELLİK & SAĞLIK
ZANAAT
KÜLTÜR & TARİH
EĞLENCE
ÇEVRE
YİYECEK & İÇECEK
TERS MÜHENDİSLİK
BİLİMLER
SPOR
TEKNOLOJİ
GİYİLEBİLİR ÜRÜNLER
The Single-Blow Can Opener: A Ring of Pointed Teeth Punches the Hole
Cutting into a can with a single blade takes several cuts or blows.
Thomas A. McFarland of Meadville, Pennsylvania, received US 64,891, dated 21 May 1867, for "a cheap, simple, and effective implement for cutting an opening in a can by a single blow": a ring of curved pointed teeth on a handle's head, bevelled inside, whose points enter first and whose edges widen until they meet, punching out a plug that stays inside the cutter.
This rung works out why pointed teeth need so little force, then files the teeth on a steel tube and punches a can top with one blow.
Orta
About 3 hours
Talimatlar
1
1
Peak force and work
Peak force and work
Jupyter defteri yükleniyor…
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2
A single blade before it
A single blade before it
The embedded blueprint cuts a can top a slit at a time with one blade. McFarland rings the blade round into teeth so one blow cuts the whole opening.
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3
Read US 64,891
Read US 64,891
"In operation the tool is placed on the head of the can, and the points of the teeth driven in by a smart blow, and the cutters forced down until their forks or bases have cut through the can, when a piece will have been cut out of the form of the cutters."
"The teeth being bevelled on the inside tend to compress the plug removed, and cause it to remain inside the cutter, thus facilitating its removal from the can."
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4
Cut and mark the tube
Cut and mark the tube
Cut 40 mm of 25 mm steel tube. Mark six teeth round one end, 12 mm tall, their bases touching.
Bu adım için malzemeler:
Çelik boru profil1 adetGerekli aletler:
Demir Testeresi
Tezgah Mengenesi
Silinmez Kalem
Cetvel5
5
File the teeth
File the teeth
Saw a V between each pair of marks and file the teeth to points. Bevel each tooth's inside edge with a round needle file; leave the outside flush.
Gerekli aletler:
Demir Testeresi
Eğeler (El Eğesi)
İğne Eğe TakımıTezgah Mengenesi
Şeffaf Koruyucu Gözlük6
6
Fit the handle
Fit the handle
Sand a hardwood dowel to fit the tube's other end, glue 20 mm of it in with epoxy, and leave 100 mm as the handle.
Bu adım için malzemeler:
Sert ağaç kavelalar1 adet
İki bileşenli epoksi1 adetGerekli aletler:
Zımpara Kağıdı
Dijital Kumpas 6 İnç7
7
The build in 3D
The build in 3D
FreeCAD model of this build, not of the patent: a 25 mm steel tube with six 12 mm pointed teeth bevelled inside, on a hardwood handle.
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8
Punch a can top
Punch a can top
Stand a sealed can on a hardwood block. Set the teeth on its top and strike the handle once with the mallet; count the blows needed, and measure the plug with the caliper.
Bu adım için malzemeler:
Teneke kutu1 adet
Sert Ahşap Blok1 adetGerekli aletler:
Kauçuk tokmakDijital Kumpas 6 İnç
Deri İş EldiveniŞeffaf Koruyucu Gözlük9
9
Teeth that bend, skid or leave the plug
Teeth that bend, skid or leave the plug
Single-blow can opener troubleshooting.
Flow
Loading...
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History and honest limits
History and honest limits
**Thomas A. McFarland** of Meadville, Pennsylvania, received US 64,891, dated 21 May 1867, for opening oyster, fruit and other cans. The cutters are curved to fit a shoulder on the handle's head and fastened by screws; they may be one piece or sections. He disclaimed cutting an opening broadly, single shear-like cutters, and cork borers with spring handles, and claimed the handle and cutters cutting a plug at a single blow.
**Honest limits.** Mild steel tube is not hardened; the notebook's shear figures are estimates. Your blow counts are the result.
Malzemeler
5- 1 adetYer Tutucu
- 1 adetYer Tutucu
- 1 adetYer Tutucu
- 1 adetYer Tutucu
- 1 adetYer Tutucu
Gerekli Aletler
11- Yer Tutucu
- Yer Tutucu
- Yer Tutucu
- Yer Tutucu
- Yer Tutucu
- Yer Tutucu
- Yer Tutucu
- Yer Tutucu
- Yer Tutucu
- Yer Tutucu
- Yer Tutucu
Tasarım dosyaları
1İlgili Blueprint'ler
Bu blueprint'ler bilgi paylaşır — teknikler, malzemeler veya ilkeler
CC0 Kamu Malı
Bu plan CC0 lisansıyla yayınlanmıştır. İzin almadan kopyalayabilir, değiştirebilir, dağıtabilir ve herhangi bir amaçla kullanabilirsiniz.
Planı üzerinden ürün satın alarak Maker'ı destekleyin, böylece Maker Komisyonu Satıcılar tarafından belirlenen komisyonu kazanırlar veya bu Planın yeni bir versiyonunu oluşturun ve gelir paylaşımı için kendi Planınıza bağlantı olarak ekleyin.