Page 1 of 2 12 LastLast
Results 1 to 15 of 29

Thread: Double springs Anyone Tried them??

  1. #1
    Join Date
    Jul 2009
    Location
    Newton Aycliffe
    Posts
    125

    Thumbs up Double springs Anyone Tried them??

    I was on Trobb's site and i clicked on the tuning section and came across a set of springs each half the size of a normal spring you combine them to become one spring. The beauty of them is that they are coiled one left and one right so that there is no twisting friction which is supposed to make the gun smoother and more powerful. Has anyone tested these ??

  2. #2
    Join Date
    Nov 2001
    Location
    Bolton,Lancs
    Posts
    11,147
    BSA tested this type of spring in the early 1900's. They were fited to BSA's up to WW2

    Nothing new in airguning

    Anyway, welcome to the BBS.

    ATB
    Ray.

  3. #3
    Join Date
    May 2004
    Location
    Ashby de la Zouch
    Posts
    2,542

    2 springs

    2 springs wound in opposite directions have also been used to good effect by feinwerkbau in their match rifles 300S/SU
    john
    hold me back !!

  4. #4
    Join Date
    Jul 2009
    Location
    Newton Aycliffe
    Posts
    125
    Wow fast reply and thanks for the welcome but do they offer any power gain??

  5. #5
    Join Date
    Jan 2004
    Location
    On ma dirt farm near Dudley in the Westmidlands.
    Posts
    13,128
    Dident Relum do this in their Tornado???

  6. #6
    Join Date
    Jan 2007
    Location
    Cardiff, South wales
    Posts
    3,859
    I have 2 springs,one inside the other on my Relum Telly.

  7. #7
    Join Date
    Jul 2008
    Location
    Rickmansworth
    Posts
    3,982
    http://www.trobb.f9.co.uk/

    Would the springs need a very slippery joint between them to get any benefit??? Otherwise to my figuring, two opposing springs pressed against each other and released would generate a great amount of friction at the join and while not creating any clock/anticlockwise twist, would still cause some sort of jolt??

    Steve.

  8. #8
    Graham2 is offline Slightly camp, makes decent chilli, and has a box of tissues and a can of 3 In 1 in the gun room
    Join Date
    Jun 2005
    Location
    Sidcup, Kent, The Garden Of England
    Posts
    3,191
    If they were such a good idea, all manufacturers would use them!

  9. #9
    Join Date
    Jul 2009
    Location
    Newton Aycliffe
    Posts
    125

    Question

    Well i was gonna breathe some new life into my webley vulcan i thought these would be a good idea but if theyre not what is the best spring over a standard one and why does everyone hate Ox springs

  10. #10
    barrel's Avatar
    barrel is offline Work is the refuge of people who have nothing better to do
    Join Date
    Jul 2008
    Location
    Edinburgh
    Posts
    9,079
    Quote Originally Posted by Graham2 View Post
    If they were such a good idea, all manufacturers would use them!
    It could all be down to costs at the end of the day and not just performance.

    Regards

    Barrel
    IF I WALKED ON WATER PEOPLE WOULD SAY I COULD NOT SWIM !

  11. #11
    Join Date
    Jul 2005
    Location
    Operating without any decent restraint - Nottm
    Posts
    23,398
    Quote Originally Posted by R. P. McMurphy View Post
    Dident Relum do this in their Tornado???
    Yup
    Double concentric springs, according to "Great Universal Catalogue" circa 1975...
    1st Battalion Humberside Cavalier Rescue Deserters on the cut

  12. #12
    Join Date
    Mar 2006
    Location
    Worcester
    Posts
    22,222
    Quote Originally Posted by Neil. View Post
    Yup
    Double concentric springs, according to "Great Universal Catalogue" circa 1975...
    Twin concentric springs for extra cocking effort with no discernible increase in muzzle velocity.

  13. #13
    Join Date
    Aug 2008
    Location
    waterlooville, Nr Portsmouth.
    Posts
    5,098
    Quote Originally Posted by Mr.22 View Post
    Well i was gonna breathe some new life into my webley vulcan i thought these would be a good idea but if theyre not what is the best spring over a standard one and why does everyone hate Ox springs
    Go for a Titan XS. OX springs are harsh, nasty, vicious, gun breakers, that loosen your fillings. Unless you saw about a third off of them. Plus they're square sectioned wire, with razor sharp edges that can shave bits off the inside of yor gun. Titan however, are very good Swedish silicone steel.

    https://www.euroguns.co.uk/acatalog/...#atitanmsother
    Weihrauch B&C HW95K, B&C HW35K, BAM B26-2 venoman custom, QB78 DL custom.
    You ain't so big, you jus' tall, tha's all.
    http://ukchineseairgunforum.myfreeforum.org/index.php

  14. #14
    Join Date
    Apr 2006
    Location
    Swadlincote
    Posts
    7,430
    Quote Originally Posted by Mr.22 View Post
    Wow fast reply and thanks for the welcome but do they offer any power gain??
    In short, no. I think the idea was to remove the twisting effect of a single spring as it extends. The modern thinking, feel free to correct me if I've got this wrong, is to fit a top hat on the piston end and a decent delrin spring guide at the other end.
    When the spring extends during the firing cycle the rearmost end breaks contact from the cylinder and so is free to "unwind" anyway, doing away with the need for double springs.

  15. #15
    Murphy is offline Cooee! Chase me you naughty boys!
    Join Date
    Aug 2003
    Location
    Wigan
    Posts
    22,424
    I used to have twin springs inside my HW97k silencer.

    They where no good there as well.
    Master Debater

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •