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

Latest topics

» Crossbow with built in lever?
by kenh Today at 6:21 am

» Chinese crossbow with auxiliary string?
by stm2010 Mon Jun 26, 2017 9:48 am

» 15th century saxon prods
by Geezer Mon Jun 26, 2017 7:34 am

» Yet another one
by jocky Sun Jun 25, 2017 7:09 am

» Crusader crossbow
by c sitas Thu Jun 22, 2017 9:41 pm

» Whamo showed up, prod replacement ideas
by kenh Mon Jun 19, 2017 4:25 pm

» Renaissance Sporting crossbow
by tony a Mon Jun 19, 2017 2:10 am

» loose laminate issues
by c sitas Sun Jun 18, 2017 8:42 am

» Of Bows and Torsion Engines
by c sitas Fri Jun 16, 2017 2:55 pm

» My second crossbow
by Daniel Levesque Fri Jun 16, 2017 10:48 am

» Need to locate Windlass Crossbow, pre 1600, in Rome, Venice, or Florence
by 8fingers Tue Jun 13, 2017 11:24 pm

» Crossbow Projectiles
by Geezer Tue Jun 13, 2017 8:10 pm

» Greetings!
by OnlyHuman Mon Jun 12, 2017 7:40 am

» Anyone know what this is?
by Yuki23emma Sun Jun 11, 2017 2:54 pm

» Prod specs
by Onager Lovac Mon Jun 05, 2017 4:25 pm

» Finished Crossbow
by kenh Sat Jun 03, 2017 8:34 pm

» The Arbalist Guild - Around the World
by Turnigy Fri Jun 02, 2017 1:25 pm

» Reverse draw "compound" build
by Turnigy Fri Jun 02, 2017 1:20 pm

» Casting Resource
by White Oak Wed May 31, 2017 2:28 am

» The Road so far......
by White Oak Mon May 29, 2017 7:17 am

» GLOSSARY OF TERMS
by Onager Lovac Wed May 24, 2017 6:41 pm

» Hello from Maine
by White Oak Sun May 21, 2017 11:06 pm

» Leonardo Da Vinci string with suport-rolls
by Oppenheimer Tue May 16, 2017 11:40 am

» Compact repeating compound project
by Phil Abrahams Mon May 08, 2017 2:10 pm

» Trying to reduce the power stroke in my next project
by octavioaugusto.oliveira Thu Apr 27, 2017 1:27 pm


    How this Delta Vertical bow Crossbow coking and reset ?

    Share

    stm2010
    Fresh Blood

    Doesn't mean
    I'm new to crossbows


    Fresh Blood Doesn't meanI'm new to crossbows

    Posts : 40
    Join date : 2013-01-08

    How this Delta Vertical bow Crossbow coking and reset ?

    Post by stm2010 on Wed Aug 24, 2016 12:49 am

    https://www.youtube.com/watch?v=MvWOT0AyEV8

    I have seen this intersting product on the youtube.
    There are some claws/gears on top of the cocking rod. In order to keep the holding device stable,there must be a ratchet to bear those claws like Greek's gastraphetes.
    But what puzzled me is that after the man release the arrow, he pull back the cocking rod a litter first, then push forward the cocking rod to catch the bow string.
    If there is a ratchet mechanism, he can't simple push forward the rod without disengaging the ratchet and claws.
    Anyone can explain its working mechanism, sorry I can't post any picture in this topic.

    picture links
    http://williamtellarcherysupplies.com/wp-content/uploads/2015/04/DSC04023.jpg
    http://williamtellarcherysupplies.com/wp-content/uploads/2014/05/DSC02896.jpg

    c sitas
    Crossbow Junkie

    I live here!


    Crossbow JunkieI live here!

    Posts : 405
    Join date : 2012-11-24

    Re: How this Delta Vertical bow Crossbow coking and reset ?

    Post by c sitas on Wed Aug 24, 2016 7:46 pm

    This bow is just like a standard bow ,except is it very short. It is shot by sliding the release down the rod and then you grab the string with it. Now you pull the bow all the way back and the trigger will lock on the rod. You put an arrow on the bow now , as it is ready to shoot. Place the trigger on your face for anchor point, take a careful aim and press the release button.Some states won't allow this setup.These have been around for a long time and just never have been accepted.Some may call it a vertical crossbow

    Andy.
    Techno Weeny

    Lets put a laser on it!!!


    Techno WeenyLets put a laser on it!!!

    Posts : 56
    Join date : 2014-09-05

    Re: How this Delta Vertical bow Crossbow coking and reset ?

    Post by Andy. on Thu Aug 25, 2016 4:16 am

    The stay rod with attached release aid moves in the riser as per the you tube clip.

    I'm guessing the toothed end of the rod and ratchet system is released by a small thumb catch or button on the upper side of the grip (can't be seen in the clip)

    I have this same bow. For the money, it is fantastic fun, compact, and shoots extremely well!

    A downside is that draw length can't be adjusted, and it is factory set at 28"
    Not a fan of the included release aid either.

    c sitas
    Crossbow Junkie

    I live here!


    Crossbow JunkieI live here!

    Posts : 405
    Join date : 2012-11-24

    Re: How this Delta Vertical bow Crossbow coking and reset ?

    Post by c sitas on Thu Aug 25, 2016 7:24 am

    Correct ,  in my opinion, that's mostly why they never took off. First the bow was designed , a friend has one . It is shot as a  conventional bow with the exception that you have to use a release. That never took off either. The owner of the company sold to where it is now. I've been shooting and hunting for over 55 years.  I'll still shoot in the 50s for x count. I've seen a lot of this stuff come and go.I almost believe that there are no more wheels to invent. On the draw length I'm thinking you could make a mod  to fit just you.

    stm2010
    Fresh Blood

    Doesn't mean
    I'm new to crossbows


    Fresh Blood Doesn't meanI'm new to crossbows

    Posts : 40
    Join date : 2013-01-08

    Re: How this Delta Vertical bow Crossbow coking and reset ?

    Post by stm2010 on Sun Aug 28, 2016 12:39 am

    Thank you c sitas for your explanation.
    In my view, the concept of this bow/crossbow is not the same as the in line vertical crossbow, since its trigger system is floating and movable. 
    After release, this man just pull the cocking rod forward without reset the ratchet like 
    operating the gastraphetes. This is the main point for this design. 
    If I can search the patent, then the question is solved.

    Sponsored content

    Re: How this Delta Vertical bow Crossbow coking and reset ?

    Post by Sponsored content


      Current date/time is Wed Jun 28, 2017 9:41 am