Converting Bikes to Snow/Ice Use - Patents

Snow Bike Patent, 1900

"The invention contemplates the employment of a bicycle of any preferred style, in combination with supporting sleds or runners and means for imparting motion thereto." and . . . "The rotary motion of said shaft is converted . . . to a reciprocating motion upon the part of the push-bars, which are alternately projected and retracted, engaging the snow or ice at each stroke, and so propelling the vehicle."

Apparently the idea was to propel the bicycle as though it was someone's crazy version of a cross country skier, in which the poles do all the work.


Snow Bike Patent, 1900 - augmented wheels

To make this work, rather elaborate changes are made to the tires, fixing a set of teeth to the outside edge of the tire. Uhm, wouldn't it have been easier to run the chain down directly to do this??

The "ice velocipede" below looks more sensible, although since it preceded the above by six years, apparently it hadn't caught on.


Ice Velocipede 1894

The object of the invention is to provide a new and improved snow and ice velocipede, which is simple and durable in construction, and arranged to enable the rider to travel over the snow and ice at a high rate of speed. and The invention consists principally of single front and rear runners supporting the frame, and connected thereto by horizontal pivots and a propelling chain mounted to travel along the rear runner and driven from the crank or pedal shaft through the medium of a sprocket wheel mounted on the pivot connecting the said runner with the frame. (Crazy way to write.) and The propelling chain is provided with spikes or blades adapted to pass into the snow or ice, so as to propel the vehicle forward. Aha! Well, it might work. But again, we don't see these around . . .


Snow Shoe Attachment for Bicycles

This is the simplest of the bunch, although it seems likely to have traction problems.


Traction Vehicle

This isn't actually a patent for a snow bike (snow isn't mentioned in the patent) but rather a tracked bicycle that could, presumably, have been used on snow as well as on other difficult terrains. (Also it seems to be a purpose build device rather than a conversion.) Could this be used for cyclocross? Again, we don't see these around today, do we. Presumably the energy required to get this to move at all was a bit of a problem.

Keep in mind these are 110+ year old patents - what is interesting is that there are plenty of patents from the last 20 years that aren't that different. Go to Google's patent search and simply search on "bicycle snow" and see what I mean.