Crossbows - Everything about Building, Modding, and Using your Crossbow Gear

Latest topics

» How to make a slurbow?
by banuvatt Today at 12:08 pm

» Compound twinbow pistol (posts vs pulleys)
by c sitas Fri Jul 19, 2019 7:10 pm

» Contact details of steel prod makers
by Geezer Thu Jul 18, 2019 12:24 pm

» Seal lath bindings, what to use?
by banuvatt Sat Jul 13, 2019 7:33 am

» measuring speed
by stuckinthemud1 Sat Jul 13, 2019 4:31 am

» installing a tickler
by Geezer Fri Jul 12, 2019 7:25 am

» birch bark covering
by stuckinthemud1 Fri Jul 05, 2019 9:27 am

» thank you n hope to learn in this forum
by kenh Mon Jun 17, 2019 5:01 am

» Red Oak Board (x)Bow.
by banuvatt Sun Jun 16, 2019 10:20 am

» New member intro and couple of questions
by Wildtech Mon Jun 03, 2019 6:46 am

» best way of spanning a 200+lb bow
by stuckinthemud1 Fri May 31, 2019 3:31 am

» where to find antler for nut construction
by victortkz Sat May 25, 2019 10:47 am

» Steel prod - unknown draw weight
by Cornerstone Sat May 25, 2019 3:07 am

» making a reproduction of a 15th century cranequin
by victortkz Fri May 03, 2019 3:51 am

» can you point me in the direction of a post on nut-making
by kenh Sun Apr 28, 2019 5:09 am

» Chinese Han Dynasty Crossbow 300lbs 20" powerstroke
by Geezer Thu Apr 25, 2019 11:56 am

» My latest crossbow creation, the Vanquish
by MPDVM Sun Apr 21, 2019 5:50 pm

» Steel prod on a crossbow
by c sitas Sun Apr 21, 2019 8:33 am

» robin allen crossbow for sale or trade
by elkhunter Sat Apr 20, 2019 5:47 pm

» man made material for reinforced socket
by 8fingers Sat Apr 20, 2019 12:36 pm

» Dimension help
by kenh Mon Apr 15, 2019 5:15 am

» how do I finish a mixed material tiller
by stuckinthemud1 Fri Apr 12, 2019 9:55 am

» All metal Self Loading Crossbow Build Information needed
by Wildtech Fri Apr 05, 2019 6:01 am

» hello! introductions
by kenh Sun Mar 31, 2019 5:31 pm

» Brand new Demon crossbow
by Phil Abrahams Sat Mar 30, 2019 4:33 am


    strength of differing release/locks

    Todd the archer
    Todd the archer
    Crossbow Junkie

    I live here!


    Crossbow JunkieI live here!

    Posts : 581
    Join date : 2010-02-25
    Age : 57
    Location : sellersville,pa.

    strength of differing release/locks Empty strength of differing release/locks

    Post by Todd the archer on Sun Apr 11, 2010 7:12 pm

    While reading Galloway's book he mentions the claplock release but says that for the heavier crossbow something stronger was needed, the roller nut was used.

    I have seen plenty of pictures of old german style crossbows with the claplock system.

    My question is that if the above is true at what point was the claplock system not sufficent?

    I see that Alchem offers it for sale, but I have not seen any reproduction crossbows with it or much talk about it.

    Anyone have any experience with this?

    Thanks Todd
    Pavise
    Pavise
    Dear Friend, You will be Greatly Missed.
    Dear Friend, You will be Greatly Missed.

    Posts : 128
    Join date : 2010-02-07

    strength of differing release/locks Empty Re: strength of differing release/locks

    Post by Pavise on Sun Apr 11, 2010 8:08 pm

    "My question is that if the above is true at what point was the claplock system not sufficent?"

    I would say when the draw-weight of the prodd was sufficient to overcome the slight incline of the string notch, exacerbated by the springing or bending of the lock mechanism. A cocked string is always trying to escape its bonds and will fly away at the first opportunity. Weak wood and metal parts will sometimes allow this. strength of differing release/locks Icon_mad And a heavy prodd required a thick string too; placing even more demands on a claplock system.

    Pavise
    Geezer
    Geezer
    Master Crossbowyer
    Master Crossbowyer

    Posts : 1106
    Join date : 2010-01-12
    Age : 71
    Location : Austin, Texas, USA

    strength of differing release/locks Empty claplock

    Post by Geezer on Sun Apr 11, 2010 9:43 pm

    Geezer here, concerning the Renaissance clap-lock. I have never favored the claplock... I just don't like having a lock that intentionally has the string strike the bolt at speed... the roller-lock starts the string against the bolt as god intended... and that's good enough for me. (yes, that's a joke)
    Even so, there are plenty of claplocks on 16th century and later bows with pretty substantial prods. Alchem has sold clap-locks for years, and Jim Koch's friend Garvin, who actually fabricates the steel prods, makes bows with clap-locks. I expect they're plenty strong and safe, if installed correctly, on any of Alchem's standard prods... which usually run up to approx. 200 lb. draw. After all, if they were failing even occasionally, I expect Jim Koch would yank 'em off the market pretty quick. Geezer

    Sponsored content

    strength of differing release/locks Empty Re: strength of differing release/locks

    Post by Sponsored content


      Current date/time is Tue Jul 23, 2019 2:10 pm