The engine in your post I believe is actually an English Griffin 6 cycle engine. The engines were made by Dick, Kerr & Co. There is a reference to the engine in Patrick Knights A to Z of British Stationary Engines, pg 83.
They may have been made in the US. I am sure someone else may be able to answer this.
I only know of one horizontal 6 cycle Griffin engine, it is in a museum in Bath, England. The Anson Engine Museum has an inverted 6 cycle Griffin. You can find both of these on the internet if you search for them.
There is a 4 cycle in a private English collection. I recently acquired an engine which I believe to be a Griffin 4 cycle which has been rebadged.
Thank-you for the response. I have searched the web for hours & hit lots of dead ends. I will keep looking, these engines were supposed to be built in New York also. I have have tried to search for patent papers, no luck!:shrug:
If you type in 'Griffin Gas Engine' you will get a few hits. The museum in Bath is one of them, I took a look for myself and the comment that the engine would be in the museum has been removed. I saw it on there about a month ago. Maybe you can contact the museum direct.
The Anson Engine Museum definately has the inverted model. I would contact them directly if you want more info.
I have uploaded 2 pcitures I have in books. I can give you the details of the books if that helps.
I found an American version of the engine in the "yellow book" page 496, built by Henrik Strang of Chicago Illinois. I found the patent documents, US Patent # 615052 Nov. 29 1898 & 709060 Sept. 16 1902. This version looks a lot like the English Griffin engine. I will attempt to draw a 1/4 scale model & build a functional prototype.