Triangle shape grease fitting--What are they for?

[roysboystoys]

Odd grease fittings . Possibly early Harley Davidson? These are the only ones I've seen in 50 years of hunting but I'm sure someone here knows something about them.

[TheMoneyPit]

I think that they were called “dot” fittings, the only car I ever saw with them on was a 1922 or 23 Bay State made by R. H. Long in Framington Massachusetts  (I never was able to pin down the year). I sold the car to a collector in the early 1990’s who had since passed away - he was from Wisconsin near Milwaukee.

[roysboystoys]

1 hour ago, TheMoneyPit said:

I think that they were called “dot” fittings, the only car I ever saw with them on was a 1922 or 23 Bay State made by R. H. Long in Framington Massachusetts  (I never was able to pin down the year). I sold the car to a collector in the early 1990’s who had since passed away - he was from Wisconsin near Milwaukee.

 

Thanks , research shows they were phased out about 1925 on cars , found some info that tractors used them up into 30's.

The grease gun required a quarter turn to lock in place. There were many other models of "Dot" fittings.

Looks like they are hard to come by , I've had these 25 years or more.

[Craig Gillingham]

I thought I had seen these before, and I found the reference to them in an AACA magazine. It says that this style was used in 1922 only. I should have a list of cars that used Dot fittings in 1922, somewhere.