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coltello ricurvo - crooked knife

Posted: 6 Dec 2011, 13:01
by frank 63
Ebbene si!
seguendo le indicazioni del libro "canoe paddle" di Warren Graham mi sono costruito un coltello ricurvo (crooked knife);
da un cilindro in acciaio inox del diametro di 50 mm ho tagliato una fetta da 23 mm; l'ho messa dentro alla stufa per farla diventare rovente e l'ho fatta raffreddare lentamente per ammorbidire il materiale; gli ho dato la forma che volevo, lavorata la lama con la mola di pietra e rifinita con carta vetrata; alla fine l'ho arroventata nuovamente e raffreddata subito perchè riprendesse la tempera.
Con un ramo di ulivo raccolto in Puglia 2 anni fa ho fatto il manico, ricoperto poi nella parte dell'impugnatura con un laccio da scarpe :)
E' una realizzazione abbastanza semplice che spero mi possa servire per la realizzazione delle future pagaie :wink:
crooked knife 1.jpg
crooked knife 2.jpg
crooked knife 3.jpg

Re: coltello ricurvo - crooked knife

Posted: 6 Dec 2011, 13:02
by frank 63
e ancora altre foto:
crooked knife 4.jpg
crooked knife 5.jpg
crooked knife 6.jpg
Spero che qualcuno possa prenderne spunto per costruire i propri attrezzi.

Re: coltello ricurvo - crooked knife

Posted: 6 Dec 2011, 13:45
by leonardokayak
Bello [smilie=pdt_piratz_05.gif] A me piacerebbe riuscire a realizzare il coltello da bottaio o "Tirapetto" che dir si voglia, o anche scovare qualche artigiano che ancora li realizza.

Re: coltello ricurvo - crooked knife

Posted: 6 Dec 2011, 16:26
by Renato74
Ben fatto Frank [smilie=pdt_piratz_06.gif]

@Leo, per il coltello da bottaio un buon materiale di partenza potrebbe essere una balestra per sospensioni per autoveicoli, da un rottamatore si trovano a poco.

Re: coltello ricurvo - crooked knife

Posted: 12 Jan 2012, 21:50
by skiuma
ho infine deciso di procurarmi un coltello ricurvo per cui mi sono rivolto al sito tedesco fine-tools (se avessi soldi me lo comprerei in blocco) ed ho acquistato due attrezzi utili a scavare: un coltello Mora frost e uno speciale cucchiaio in ottone con una lama curva (bellissimo!) e molto comodo da usare... infatti si tira:

Re: coltello ricurvo - crooked knife

Posted: 13 Jan 2012, 19:45
by Aco
fate il manico curvo, non diritto e l'ergonomia del polso, il controllo e la precisione del taglio aumentano considerevolmente, una coppia con una lama completamente curva ( in realta' chiamano questo un "hook knife" e spesso ha il manico diritto perche' usato su pezzi piccoli) e l'altro con la lama diritta e la punta curva coprono quasi tutte le occasioni.
Senza dover forgiare per davvero le vecchie balestre sono buone per ogni tipo di coltello piccolo o grande da campeggio, ottime per roba tipo machetes o coltelli usati con il batoning, altro materiale sono vecchie lime ed un altro sono le vecchie lame da metallo per le seghe di tipo ad arco.
Quello in centro era una balestra Image
Se poi si puo' forgiare billette da farci poi le lame c'e' un infinita' di acciaio da utensili o parti di macchina o lame di seghe a motore o cavi in acciaio che si possono usare.

La prima curva la lama la fa all'impugnatura (e' per inclinare l'impugnatura, lavorando piatti sul pezzo cosi le nocche e il dorso della mano non grattano continuamente sul legno o piano di lavoro, poi la punta, e/o la lama stessa, si curva nelle varie configurazioni per lavorare.
Deve essere affilatissimo, e visto che si usa tagliando verso se' stessi OCCHIO, soprattutto se si ha l'abitudine di poggiare il pezzo sulle ginocchia
Image

un esempio del manico da "Wildwood Wisdom" by Ellsworth Jaeger:
Image

Leonardo: il tirapetto e' semplice da fare, dipende da che attrezzi hai per lavorare il metallo, ma se lo fai coi manici diritti c'e' solo da sgrossare il metallo, niente altro.
Mio nonno ne fece uno usando la lama di una baionetta austriaca della prima guerra...

Re: coltello ricurvo - crooked knife

Posted: 5 Feb 2012, 22:59
by heimiti
Che begli attrezzi!
Schiuma per cosa usi il cucchiaio? scavare cosa? Perdonami, sono curiosa...

Re: coltello ricurvo - crooked knife

Posted: 23 Mar 2012, 9:26
by flender
Un consiglio..
Evitate se possibile di usare acciaio inox.
L'inox PUO', e non sempre, essere comodo per il fatto che ha un'alta resistenza alla corrosione, ma come tenuta del filo e capacità di taglio è nettamente inferiore a qualsiasi carbonioso da 2 lire.
Io l'inox lo scelgo solo su coltelli ad uso alimentare.
Per un coltello destinato al taglio ASSOLUTAMENTE NO!!!

:)

Re: coltello ricurvo - crooked knife

Posted: 20 Aug 2023, 8:23
by wylin

Re: coltello ricurvo - crooked knife

Posted: 10 Sep 2023, 8:46
by wylin
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Re: coltello ricurvo - crooked knife

Posted: 2 Nov 2023, 2:25
by wylin

Re: coltello ricurvo - crooked knife

Posted: 2 Dec 2023, 3:59
by wylin
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Re: coltello ricurvo - crooked knife

Posted: 2 Feb 2024, 9:55
by wylin
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hangonparthaphazardwindinghardalloyteethhardasironhardenedconcreteharmonicinteractionhartlaubgoosehatchholddownhaveafinetimehazardousatmosphereheadregulatorheartofgoldheatageingresistanceheatinggasheavydutymetalcuttingjacketedwalljapanesecedarjibtypecranejobabandonmentjobstressjogformationjointcapsulejointsealingmaterial
journallubricatorjuicecatcherjunctionofchannelsjusticiablehomicidejuxtapositiontwinkaposidiseasekeepagoodoffingkeepsmthinhandkentishglorykerbweightkerrrotationkeymanassurancekeyserumkickplatekillthefattedcalfkilowattsecondkingweakfishkinozoneskleinbottlekneejointknifesethouseknockonatomknowledgestate
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Re: coltello ricurvo - crooked knife

Posted: 2 Mar 2024, 2:52
by wylin
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