Constabulary

it probably depends on the subclass of the 1245 machine whether it has an oil reservoir or not. I can Speak for the Singer 211 series and they came with different size hooks and some of the hooks had oil bath others don´t depending on what subclass the machine has.

Have you googled the number? First find was in AU https://marfar.com.au/pa/collections/parts/products/spring-412201 I know AU - Denmark but still an option. Alternatively I would check parts lists of similar machines like Seiko LSW, Brother LS2 or similar, also look for similar Consew models. Just a guess, I don´t know if they are all the same underneath the flat bed. If you find nothing, check with some of the known Chinese sewing machine parts dealer on Ebay and ask if they can get you the spring. I did that before and they came up with what I needed. That probably is the cheapest option. Just some suggestions.

BTW - seems your machine has no oil drip pan.

tilt the machine back its just below the flat bed right in front of you.

Please post more pictures of your machine. Its hard to imagine what you mean. Pictures tell more than 1000 words.

aaaah, well - its for adjusting the foot pressure

needle not correctly insert, worn hook tip, needle - hook timing needs to be checked & adjusted (see manual), hook tip too far away from needle... there could be many reasons.

I bought from then directly too but that was some years ago. Nice people. I visited their factory back then and they even showed me around. Most impressive was the Zick Zack patcher they sell. But expect that made in Germany parts and especially hooks are quite expensive - guess how I know. The spare parts folks said (back then) that certain parts (like hooks) may work for the old machines but may need some slight altering. But better check with them, things sometimes change...

looks lie a Singer 95 or 95K clone it for sure can sew some garment leather but it is designed as a tailoring machine. So depends of what you want to sew / produce if this machine is suitable or not.

when i start sewing I have top and bottom thread UNDER the foot.

Check for DOT PULL THE DOT snaps EDIT: Link: https://www.dotfasteners.com/shop-by-brand/pull-the-dot You may get them from certain dealers too.

maybe some pictures would help to evaluate the damage. keep in mind - you just get suggestions here maybe one maybe ten - maybe from pros maybe from hobbyist - at the end you are the one who decides. I 2nd what NateLeatherGds wrote. If you can afford buying LV bags you also should be able to afford proper care or restorations. I´d would probably check with LV or one of they dealers if they offer some service.

not a too big issue, the spring just "holds" the thread. It should work with a weaker spring if not I may have a better one (I´ll email you later)

do you have a link?

I just googled what I can read on the face plate: Broad Street Machine Chattanooga Tennessee http://www.broadstmach.com/ Seems to be some sort of carpet tufting machine - or so.

Last picture seems to be a Singer 31 or 31K. All theses machines are very old. The 12w most likely if the oldest from around the time when Singer took over Wheeler & Wilson. I think a 120 needle (metric) is what they all can handle but depends on the size of the needle hole in the needle plate. Check the manuals for the machine. They should all be available online.

Please post pictures of your machine. The 51w came in 2 types and the earlier type looked a bit different and is based on a Wheeler & Wilson design. This is how the earlier type looks like: https://leatherworker.net/forum/topic/86292-singer-51w-sv-2-post-bed-machine-restoration/?do=findComment&comment=586639 https://leatherworker.net/forum/topic/86292-singer-51w-sv-2-post-bed-machine-restoration/page/2/?tab=comments#comment-685902

Has not to do with picking up the thread but what I noticed is that your Singer 29K51 has an arm lever from a very early Singer 29 that lacks the the adjuster for the thread take up lever. IIRC only the very early 29 came w/o this adjuster so your machine should have the adjuster shown in the below picture. However it should pick up the thread w/o this adjuster. How is the condition of your shuttle hook, has it a sharp tip? Also, the needle holder can be moved sideways to bring the needle a bit closer to the hook. Have you probably taken apart the gear box and not reassembled it correctly? That happens and the "drop out" gear box of the 29K51 is a bit special. I have restored only one single 29K51 (no longer own it) and there was no instructions for how to reassemble the gear box again so I did some trial and error and ended with the gear box and rack assembled like this - see 2nd picture - and it worked. BTW - do you have manual for your machine? One more question - how far did you take down the machine? Did you remove the top shaft or any of the cams on the top shaft?

I don´t know the 45w but on the few left stand machine I have seen and used (I have 145K1 left stand) the hand wheels turn away from you . No matter what watch the feed dog it should always feed away from you (assuming the machine has no reverse)

Thtas the case on all machines with drop feed except the feed dog just moves back and forth w/o dropping and raising (as on certain binder machines). How much it raises depends on how high the feed dog is set. Usually the feed dog raises by the 1/2 or up to full height of the feed dog teeth.

When the bushing is stuck it must likely is gummed up with old oil so I´d try some penetrating oil or kerosene (what ever desolves old oil) and if it does nor help apply heat with a blow torch and then try again.

Yes, its a needle feed + drop feed machine. The foot does not move. When the foot bar sticks out of the casting then it cannot move

Reduce the foot pressure and / or use a roller foot with smooth surface or rubber layer on the wheel Not sure if this one fits your machine https://www.ebay.com/itm/142979318355 Not sure how your machine is set up machine but this would be an adapter for the above roller https://www.ebay.com/itm/145397360986 If your machine is set up with the flip aside roller foot already then there is also an optional adapter for using plain industrial presser feet (f.I. with a Teflon sole) instead of the roller foot https://www.ebay.com/itm/143603134209 with installed foot: https://www.ebay.com/itm/165883555629 If you have a 1 row needle plate and feed dog then this set could be helpful when using plain industrial feet: https://www.ebay.com/itm/143603162021

Seller here says its for the 47w as well (see description) - not sure if the belt for the 47w66 it different but I don´t think it is (not sure though). https://www.ebay.de/itm/122465742879 I just checked the parts list and googled the number. This is the old style belt with metal braces - above belt is the new type made of rubber / neoprene. https://www.ronsew.com/arm-shaft-connecting-belt-235003-for-singer-153w100-singer-153w101-singer-153k101/ However - compare the measures and number of braces and / or check with the sellers.

I have a revolving bush for this machine and other parts as well. I´m in Germany so shipping is not a problem.