A Dog Spring That Pulls ??

[Maxed Out]

Factory dog and spring on a 9/0 senator. I've seen same thing on a 12/0 also. Both are late 30's models.

Notice the spring pulls on the dog, instead of pushing. Looks goofy but actually works very nice, and because the dog and spring are all one piece, it makes installation a snap.


  Ted

[RowdyW]

What does it hook on to to pull. The photo looks like it's just laying there. Or is it soldered to the dog?

[Tightlines667]

Interesting.  

So to replace the spring, you must also replace te dog?  Maybe I should open up my first Gen senators at some point.

[Maxed Out]

Yes, dog and spring are all one and no matter how I tried, they do not separate....and yes John, pretty sure it was your gen1 12/0 that has same dog & spring


   Ted

[Reel 224]

Like the Horse and buggy, The Horse pushes the load. He doesn't pull it.

Joe

[foakes]

I have seen a few of those over the years.

Nice thing about them is -- if you ever need to freshen a weak spring -- just cut, then grind or sand flush the old one on all 3 sides -- then just install a modern separate one that is a normal "pusher" -- works slick.

Thanks for sharing, Ted.

Best,

Fred

[Maxed Out]

I have seen a few of those over the years.

Nice thing about them is -- if you ever need to freshen a weak spring -- just cut, then grind or sand flush the old one on all 3 sides -- then just install a modern separate one that is a normal "pusher" -- works slick.

Thanks for sharing, Ted.

Best,

Fred

Good idea Fred !!

I was thinking a guy could just add the top "pusher" spring and have double spring tension 

[Shark Hunter]

That would make double dogging a bit easier.

[sdlehr]

Yes, dog and spring are all one and no matter how I tried, they do not separate....and yes John, pretty sure it was your gen1 12/0 that has same dog & spring


  Ted

Looks to me like the dog has a slit in it and the spring is inserted into that slit, but I would think it is held in only by friction and that they could be separated...

[Maxed Out]

Yes, dog and spring are all one and no matter how I tried, they do not separate....and yes John, pretty sure it was your gen1 12/0 that has same dog & spring


  Ted

Looks to me like the dog has a slit in it and the spring is inserted into that slit, but I would think it is held in only by friction and that they could be separated...

Sid, that "slit" is empty. This spring looks like it is cut right off of the dog and is all one piece. Click the last pic and see it enlarged

[cbar45]

A unitized dog and spring is a great idea, no more going boiinggg!

[PacRat]

I did some work on an old Colt revolver that had a spring similar to this. I'll see if I can dig up a photo. The spring was inserted into the slit, then the slit was peened closed. I replaced the part because the spring was fatigued and it was affecting timing. The new part came with the spring peened in place.
Mike

[eguinn]

 The dog & spring are 1 piece, it was machined using a process called Wire EDM Machining. If you look at the slit in the dog & follow it up t the end you can see a small hole drilled in the dog, what they will do is with a CNC Machine will position the center of what would normally be a cutting tool right over the hole & drop a wire down thru the hole, this wire is charged with electric current & moves around whatever configuration the programmer has dialed into the part.

[sdlehr]

Sid, that "slit" is empty. This spring looks like it is cut right off of the dog and is all one piece. Click the last pic and see it enlarged

Ted, that's most probably true, but I can't tell from enlarging the picture; the resolution isn't high enough for my eyes.

Sid