Unfamiliar bed, restless sleep
Icy cold tiles against my feet
as I try to wake up
The sink is against the wrong wall
But the shave is as it should be
All is well with the world
For a few precious moments
Be it known that I, Clifford E Dunn, a citizen of the United States, residing in the city of New York, borough of Brooklyn, county of Kings, and State of New York, have invented certain new and useful Improvements in Safety-Razors...Where the two previous early single piece razors we looked at worked by lowering the base plate, Mr Dunn's idea revolved around a top cap that came away from the rest of the razor on two long arms. Mr Dunn solved the challenge of securing the top cap to the rest of the razor with a lever operated cam... and to secure the cam he used a ratchets along a curved surface. If that sounds complicated, have a look at the drawings:
The main inconvenience of safety razors of what may be termed the Gillette type where the blade is clamped between a back piece and a guard or clamp, lies in the fact and that in the only practical form of this razor which has appeared on the market the holder has to be taken entirely apart to insert and adjust or remove the blade.While I'm not inconvenienced by the fact that I have to take a three piece razor to pieces to replace the blade, I must admit that a twist to open razor is convenient - and Mr Edmonds' description sounds like a twist to open razor to me. Another interesting morsel when it comes to this patent is the fact that it's listed as filed by and assigned to Gillette Co LLC... while the filing data might be wrong, it strongly suggest that Gillette bought the patent from Mr Edmonds, which would make it the earliest twist to open patent held by Gillette I'm currently aware of.
My invention pertains to an improved form of holder wherein the various parts are so connected together that they never are detached one-from the other in the ordinary use of the razor. A This is due primarily to the fact that what may be termed the handle and the back piece are made in one piece, the clamp mechanism being attached thereto in such a way that the clamping operation may take place by the manipulation of the parts without their separation.
In a safety razor, a handle, a back piece fixedly mounted thereon, a clamp, a pivoted rod and means whereby said clamp may be adjusted thereon toward and from said back piece, said rod being adapted to be swung out from its clamping position with relation to said back piece to expose said back piece for cleaning and for the reception an delivery of the said blade, as set forth.
In a safety razor, a handle, a back piece integral therewith, and a clam adapted to clamp a blade against said back piece, said clamp being mounted on a cross axis whereby it may be swung in and out from 1ts clamping position and also being provided with means whereby .it maybe moved in a direction toward and away from said back piece, said back piece having centering pins adapted to receive and center said blade, and said clamp having slots registering with said pins whereby said clamp may be swung into and out from a position registering with said back piece, as set forth.
In a safety razor, a handle, a back piece fixedly attached thereto, a rod mounted in said handle, and a clamp, and means for maintaining the clamp in with said position, said means comprising a shank and a stud attached one to the rod and the other to the clamp, said stud being angular in cross section and said clamp containing a clamp position to register back piece when out of clamping clamp may be adjusted toward and from said back piece, as described.Easy, peasy... and probably more expensive and fiddly to machine than a simple three piece razor, which may be part of the reason Gillette to the best of my knowledge didn't put this patent into production.
Be it known that I, Thomas E McDermott, a citizen of the United States, residing at Somerville, in the county of Middleand State of Massachusetts, have invented certain new and useful Improvements in Safety-Razors...I'll grant that Mr McDermott's invention - which he filed a patent for in 1908 - was certainly new and novel enough for the patent office to grant a patent for... but I'm not entirely convinced that it was a particularly useful improvement. Or an improvement, period. The patents describes a couple of interesting ideas though, and his razor is one the first one to include a twist to open mechanism even if Mr McDermott describes it as an mechanism to primarily adjust the blade gap.
A lather roller 34 provided with longitudinal corrugations 35 on its surface is attached to the wall 6 by ears 36 or the roller may be attached to the side arms 2 of the frame l. The ears 36 are provided with openings into which the ends of the spindle 38 pass. A spring catch 39 may be placed, if desired, over the ends of the spindle 38, to permit the lather roller to be readily attached and detached.And that is all he had to say about that improvement... to me it seems like his main idea was the resilient blade-bed, and the roller just got tacked onto the design later. Such a roller could be added to almost any single edged razor though, if someone was so inclined.