It is easy to forget, as one is looking at old patents online, that not every inventor spoke English. I’ve looked at several interesting non-english patents in the past, and stumbled over an interesting looking one today too. It is for how to do attach a handle to your shaving apparatus. Or to put it in a different way; a handle attachment to your razor.
Patented by Paul Druseidt, the invention gives a razor that both pack flat and is easy to assemble. It consists of a normal-ish razor head and a U-shaped handle made from spring steel. The handle is ever so slightly smaller than the head of the razor and can nestle inside it.
Patent drawing from German patent 323,451
The key is the shape of the recesses or hole on the underside of the razor. The keyhole, if you will. As can be seen from the drawing, it was longer one way than the other, and had arches or troughs on either side.
The U-shaped handle was, as mentioned, springy. You would insert it along the long axis of the hole, then twist it 90°. The arches on either side would stop it from slipping back, and the tension of the spring steel would hold it in place. After shaving the handle could be twisted back, removed, and placed against the inside of the razor head
Or, to quote the patent;
…der U-förmig gebogene Handgriff 6 zwecks Befestigung an der Kammplatte 2 mit seinen federnden Enden 5 in zwei unter der Kammplatte vorgesehene muldenförmige Aussparungen 4 eingeführt und sodann um 90° gedreht wird, wobei die federnden Enden in zwei weitere, enger aneinander liegende, muldenförmige Aussparungen 3 eintreten und in diesen festgehalten werden, während er nach Gebrauch aus den muldenförmigen Aussparungen herausgezogen und von unten gegen die Kammplatte gelegt wird.
For those whose German is a bit rusty, the autotranslated version runs as follows:
…the U-shaped curved handle 6 for attachment to the comb plate 2 with its resilient Ends 5 inserted into two trough-shaped recesses 4 provided under the comb plate and then rotated by 90 °, the resilient ends in two more, narrower Adjacent, trough-shaped recesses 3 enter and held in these while he is pulled out of the trough-shaped recesses after use and is placed against the comb plate from below.
All clear and fairly straight forward.
I though initially that a top cap could have been fastened by the pair of hook shaped projections on the bottom plate. I also though that these projections also would have acted as blade guides for a normal Gillette three hole blade.
Further research showed me that maybe was no top cap, and the hooks just held on to a proprietary blade. The first hint came in Waits’ Razor Compendium. Waits’ Compendium do mention a Druseidt razor – along with the similar Impero and Ratio razor. And in the description of the later, Waits states that “the special thick double-edged blade has two square holes and two centre oval dimples”.
Waits’ Compendium also mentions that “later versions has two pieces”, by which he seems to mean that at least the late production Ratio was made with a top cap. This in turn matches with pictures I found in a thread over on Shaving Universe, which clearly shows a top cap.
A top cap, I might add, that looks very much like Waits’ description of a “special thick double edged blade”…
Was Waits just confusing a poor quality picture of a top cap for a proprietary blade? Quite possible. It could simply be that a lot of the Druseidt, Impero, and Ratio razors that have survived have lost their top caps over the years.
Interestingly all three of the razors mentioned also have u-shaped handles. But none of the three has the handle attachment method described in the patent. Instead they uses a swinging out handle, which still relies on spring pressure to lock in place.
Overall the Druseidt patent looks like it would make an interesting razor, possible more interesting than the Druseidt razors that were actually manufactured.
You can read the full text of Druseidt’s patent at Espacenet, or a translated version at Google Patents.