Pump Jacks

[BobRR]

I finnally found some old well pumps today one is complete with VERY stuck pump jack. It is a myers with the only Pat. of Jan. 30 1917. I know for sure it is going to need a new drive gear.(nothing left) Does anyone have one of these they could give any info. or the size and how many teeth on that gear?Any other info. would be helpful as this is the first old pump I have. Thanks BobRR

[Jim Tremble]

Originally Posted by BobRR

I finnally found some old well pumps today one is complete with VERY stuck pump jack. It is a myers with the only Pat. of Jan. 30 1917. I know for sure it is going to need a new drive gear.(nothing left) Does anyone have one of these they could give any info. or the size and how many teeth on that gear?Any other info. would be helpful as this is the first old pump I have. Thanks BobRR

Bob

Look at the site below. You may find some good info on that Jack.

Jim

http://www.oldiron-nut.com/myers/52/

[BobRR]

How many different style pumps do they need? Thanks Jim ALot of helpful info. but I dont see my pump or jack.? Here is on quik pict. of mine. Will get a better pict. when get it out of truck.BobRR

[Andrew Albrecht]

Bob: From my 1939 Meyers Cataloge Looks like you have what they call a Myers Direct-Line Deep Well Power Head. # 525 Back geared 6 to 1 with a either a 6 or 9 inch Stroke. 1-1/2H.P Maximum. weight is 150 Lbs and sold for $26.00 Hope that helps.

[Bill Sherlock]

Bob,

Think this is the model of pump & jack that Andrew was describing. From my 1930 Myers catalog.

Bill

[BobRR]

Thanks guys that is it!I have a fancier belt pulley(s spokes! ) but that is the unit!The jack just hangs on the pedistal.Electrolysis here we come! BobRR

[BobRR]

Well got the pump jack all freed up after a couple of weeks in the electrolysis tank.The small drive gear is just about totally gone no teeth(rusted away) as is part the shaft it goes on.Does anyone have one of these? My shaft is longer then needs to be? it looks like maybe the shaft would slide over to disingage the drive gear so the pump could freewheel and be driven by the windmill? Is this correct? If so how does that work?BobRR

[John Drabik]

Ayup that Old Iron Nut sit e with the Old Myers catalogue online has helped me alot lately.
I just now identified my recent pump jack find on plate number 191. A Myers five to one universal pump jack. Maybe I can help that fellow looking for the gear specs.

[John Drabik]

Hey Bob RR I have the pumpjack on page 191 in the Old Iron Nuts online Myers catalogue. If the dimensions of that gear will help you for your model jack let me know and I`ll get it for you. Mine was rusted bad also but I welded up the teeth and wore out a few files making it work well.

[Al Steppich]

Bob,
If you measure the center distance between the two shafts, and if there are traces of teeth on your old gears so you can get an idea what the pitch of the old gear is, and the number of teeth, you can go to a gear catalog or machinery handbook and figure out what gears you need. A good industrial supply house should be able to get them for you. Good luck.
Regards,
Al

[BobRR]

Thanks guys will measure for the gear.John is that a website your talking about? I believe mine is a 6to1 ratio? Looks like I need to make a new shaft also,I need to know if it was made to slide over to disengage??The shaft that is on it now is pretty long compared to what it needs to be?BobRR

[BobRR]

DAH!! Dont mind me! I just noticed that the old iron nuts was the link that Jim posted! My pump and jack is on page 58 in the 1928 cataloge. BobRR

[Tom G]

Looks like you're missing a belt pulley. Look at the catalog illustration again. A lot of pumpjacks used two pulleys. The outside pulley turns freely on the shaft. The inside pulley is attached to the shaft, so that when the pulley is turned, the shaft will turn. When you start up the engine powering the pumpjack, the drive belt is around the outside pulley. This lets you start up your engine with no load on it. The drive belt is only spinning the outside pulley around on the shaft. Once the engine is up and running, the drive belt is slid over to the inside pulley, and the pumpjack begins working. The parts lists will refer to a "loose" and a "tight" pulley. Apparently, you have the inside "tight" pulley, and are missing the outside "loose" pulley. With the outside pulley in place, your shaft wouldn't be too long.

Hope this helps.

[BobRR]

Thanks Tom that expains it! I didnt understand what they ment by tight and loose pulleys?! The way mine was when recieved the little drive gear and shaft was slid out past the driven gear so it would freewheel. mine does not have the factory belt pulleys.My pulley is neat though a old S spoke pully of some kind?How did they slide the belt over when the engine was running?BobRR

[Jim Tremble]

Originally Posted by BobRR

mine does not have the factory belt pulleys.My pulley is neat though a old S spoke pully of some kind?How did they slide the belt over when the engine was running?BobRR

Bob

The belt was moved to the tight pulley with a stick or your foot. Most of the Myers jacks and pumps that I have seen, have a straight, 6 spoke, pulley. Not curved.

Jim

[John Drabik]

Ayup thats the site. Lots of pictures and descriptions.

[Tom G]

[quote=BobRR]Thanks Tom that expains it! I didnt understand what they ment by tight and loose pulleys?!

The tight pulley is "tight" on the shaft. Turn it, and the shaft turns. The loose pulley is "loose" on the shaft. It spins freely, without turning the shaft.

The two gears on your pumpjack should stay meshed together at all times. The shaft does not slide in and out. The only sliding is done by the belt

When the drive belt is turning, it only takes a small amount of pressure against it, to slide it from one pulley to the other. Push against it with a stick, or an old board, and it will easily slide across.