Hi
@Hans Brinker
The above information come from the website of a member here, Wing your Heel. He may know more.
With credit to Wing your Heel, I like this picture, mainly for the caption 'In the Year 2000' (En L'an 2000). Those appear to be electric skates...
The Road Skate above was invented by Augustus Nichols Lindsley of New York, though it was also patented at least in the UK, Austria and Canada.
Here is his improved road skate
worldwide.espacenet.com
He was also inventing Shades for Gas Lamps. A man of his times ...
A patent search just for the term 'Road Skate' shows there were lots of patents for inline type skates from at least 1894 onwards. I honestly don't have time to search them all, but the link is here if you'd like to do so:
worldwide.espacenet.com
Type Road Skate into the second 'Title or Abstract box.
On the result list, there are two sorting boxes at the top. Sort by 'Publication Date' in the left box, and 'Ascending' in the right box. Now they are in date order, but you'll need to do this again every time after looking at a patent (it's rubbish!)
Choose a Patent, click on 'Original Document' on the left hand menu.
At the top of the image, there's a toolbar with a box saying something similar to "1/8 Bibliography". Click on this to choose the document pages, Drawings is probably what you want.
Anything interesting you can download as a .pdf using the 'download' option on the right of the toolbar.
Happy Hunting,
Best Regards,
Adrian