Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

The Regular Stuff: Chat, Buy, Sell, Off Topic, etc. => General Discussion - Model & Toy Steam Engines – Stirling Cycle – Flame Lickers – Small Antique Originals => Topic started by: SEUSA on December 20, 2019, 05:12:12 pm

Title: Re: Jensen #5 anyone else not realize the #5 cast iron base got smaller in the late 1940's?
Post by: SEUSA on December 20, 2019, 10:30:25 pm

I did not see the round vers square slot until you pointed that out.
Thank you.

Title: Re: Jensen #5 anyone else not realize the #5 cast iron base got smaller in the late 1940's?
Post by: RedRyder on December 20, 2019, 07:10:31 pm

I have a 1940's example with the dark blue larger rounded slot base.

Title: Re: Jensen #5 anyone else not realize the #5 cast iron base got smaller in the late 1940's?
Post by: RedRyder on December 20, 2019, 07:07:29 pm

Yes and the earlier pieces have a rounded flywheel slot.

Title: Jensen #5 anyone else not realize the #5 cast iron base got smaller in the late 1940's?
Post by: SEUSA on December 20, 2019, 05:12:12 pm

So I accidentally noticed that the cast iron number 5 base from the 1930s is larger than the cast iron base from the late1940s, early 1950's.

The early bases are about 1/2 an inch deeper and 1/4 inch wider.

I try to be up on all the Jensen history but this completely took me by surprise.

I've attached a photo.

PS I am in need of the larger #5 cast iron steam engine if anyone has one lying around.  Let me know.
It is like the light blue one in the top of the photo.

Cheers