There are a couple of common ways to make an adjustable safety razor. You can change the distance between the top cap and bottom plate, like the Gillette adjustable razors do. You can change the blade curvature, as done in the Rockwell and others. Or you can opt for the much less common idea of moving the guard back and forth, like J E Fuller’s 1890 patent hints at.
It was this less common way of doing things that features in Peter Bowman and Ernest F Kiraly’s patented adjustable safety razor. The application was filed in 1974, and granted the year after. The most novel thing is how adjustability was controlled.
In 1926 Rudolph C G Staats-Oels filed a patent for an improvement in safety razors. I’m not sure how much of an improvement it was. It was certainly novel, by the standards of the day. For starters, it was a slant. Or as the patent put it, it had a head:
…wherein the transverse curvature of the blade will be gradually increased from one end toward the other thereof.
Still poking around on digitalmuseum.no1 I found a much less workmanlike wedge razor than the previous one that I shared with you. Named the Bismarck razor, after the German statesman, the razor is mentioned in Waits’ Compendium.
Museums have started making their collections available online. And as I was browsing digitalmuseum.no – a common digital platform for a lot of Norwegian museums – I ran across a nice and simple wedge razor. Always a sucker for shaving oddities, I poked around a bit more.
The more things change, the more they stay the same… like bad ties, razors are a recurring suggested ideal gift for the man or father in your life. So it is today, so it was in 1959, and so it was in war torn 1941.
The turn of the last century was an paradigm shift when it came to shaving technology. Wedge blades – which had been the cutting edge1 in the late 19th century – was replaced with the bleeding edge2 of easily manufactured and replaced thin steel blade. The Scimitar razor straddled the line, in that it could use both .
So I was poking around over at Wikimedia Commons – a great source for free images – today, and once again I found a picture of a razor I’ve never seen or heard about before.
The razor is identified as the Self Sharp Adjustable DE Safety Razor, by the Self Sharp Razor Co., Turlock, California.
The images is all I know so far… Images by Joe Haupt, released under CC BY-SA 2.0
Mechanically, the razor is simple. Adjust the lever on the underside to expose more or less blade on one side of the razor – and at the same time less or more on the other. It looks to take standard Gillette style blades.
Waits’ compendium turns up a blank. Google Image Search is not particularly helpful. According to Wikimedia, patent was applied for… but a cursory search at Google Patents reveals nothing.
So if anyone know anything about the Self Sharp Adjustable razor from Turloc, California… drop me a line.