US2048251A - Safety razor with continuous blade - Google Patents

Description

N. K. FoUGNl-:R SAFETY RAZOR WITH CONTINUOUS BLADE July '21, 1936;

Filed sept. le, 1935 iftrllrlllillllllfrll fw 4%/ W,

Famed July 21, 1936 UNITED STATES SAFETY RAZOR WITH CONTINUOUS BLADE Nicolay Knudtzon Fougner,Furulund, near Oslo, Norway Application September 16, 1935, Serial No. 40,810 In Norway July 26, 1935 3 Claims.

x The present invention relates to safety razors .with continuous blade of the kind ,specified in U. S. Patent No..2,012,868 to Ecklio issued August 27th, 1935. The safety razor in accordance with 5 the said patent has a ribbon-shaped blade and comprises an oblong ilat box adapted to receive the-two blade spools, the blade between the two spools running over a clamping or guard member located in the box and adapted to be displaced therein in a direction substantially perpendicular Justment of the blade when a new part of the same is to be put in position for use. This in accordance with the invention is obtained by providing the rib, against which the blade is pressed by means of the clamping guard, with one or more knobs adapted to engage corresponding holes in the blade, provided along the center line thereof at a distance from each other corresponding to the length of blade which is used for each shaving operation.

The knob is provided with an inclined surface, so thatr the blade may be drawn 01T the knob in the direction of winding, snapping on to the knob each time one of the holes of said blade arrives in position to correspond with the knob.

When the blade is adjusted, the sound of vsnapping over the knob will indicate when the correct adjustment has taken place, the knob at the same time-securing the blade against transverse movement, so that the blade is held in a correct position with regard to the teeth of the guard member and is prevented from being pressed into engagement with the metal parts of the box.

In accordancewith 'a further feature of the in' vention the guard and the rib between which the blade is clamped, are made slightly curved in the longitudinal direction oi' the blade, whereby the pressure of the blade against theskin is made more even than it is possible withv a rectilinear edge. 59 Further features of the invention will be apparent from the following description with reference to the drawing. l

Figure lis a longitudinal sectional view of the razor andvFlgure 2 shows part oi the blade. 55 on Figure 1, I is the box, Ill the adjustable guard with the shank II and adjusting screw I3.

9 is the rib, against which the blade edge is clamped by means of guard I0. Rib 8, as will be seen, is slightly curved and immediately above the center of guard I0 is provided with a depend- 5 ing knob or nose I5, which has an inclined surface on one side and is adapted to engage oblong holes I6 in blade 8 (see Figure 2). These holes may be made somewhat longer than the knob in order to prevent the blade from being wound past the 10 knob after the sound of snapping over the knob has been observed.

Near the end of the ribbon-shaped blade further holes 22 may be placed instead of hole I6 in order to indicate by the sound of snapping over l5 said holes that the blade is nearly finished.

The blade spool isplaced in a small box or casing I1 on one side of the guard and is wound on to a spool I8 on the other side by means of a suitable handle. 'Spool I8 as indicated on the draw- 20 ing is provided with a ratchet wheel I9 and pawl 20 in order to prevent return winding.

'I'he ratchet mechanism may suitably be located on the inside of spool I8, one side wall of which may be provided with suitable openings as indi- 25 cated on the drawing in order to make the pawl accessible from the outside for putting the same in position when the spool is placed therein.

The small box or casing I'I for the new blade ribbon is provided with a slot 2l, through which 30 the blade passes, and during the winding operation the blade spool is free to rotate in the innerside of the casing, theend surfaces of which are provided with a protective sheet of cardboard or celluloid or the like, in order to prevent dulling of 35 the edge by contact with the box surface.

The box or casing for the new blade is prevented from rotation in the razor casing by means of a knob or the like, which is placed so as to keep slot 2| in the correct position. 40

The casing adapted to receive the used part of the ribbon-shaped blade is free to turn about its axis in the razor casing, so that the slot in this box or casing will automatically maintain itself in proper relation to the spool on 45 which the used blade is being wound.

In order to prevent moisture from getting into the spool chamber and also in order to keep the ribbon-shaped blade lubricated so as to prevent corrosion, the razor casing on one or both sides of the clamping member Ill may be provided with Y leaf springs 23, keeping the blade pressed against member 9 and also serving to form closed chamybers 24, which may serve as receptacles for vase- I claim:

1. A safety razor, comprising an oblong flatl lside thereof, a spool in each longitudinal end of the frame, a continuous ribbon-shaped razor blade mounted on and extending between said spools, one spool containing the fresh blade portion and the other the used portion of the ribbon, a clamping and guard member in said frame below the rib and between said spools, and adapted to be, displaced transversely of the major axis of the frame, to clamp the blade into shaving position against said rib and a knob or nose on said rib adapted to engage holes in the blade in order to provide a guiding means for the blade in the transverse direction thereof and also to ensure a correct adjustment of the blade in its longitudinal direction when a new part of the blade is being put in position for use'.

2. A'safety razor, comprising an oblong at frame having `a rib extending transversely across approximately the middle of one' longitudinal side thereof, a spool in each longitudinal end of the frame, a continuous ribbon-shaped` razor blade mounted on and extending between said spools, one spool containing the fresh blade portion and the other the used portion of the ribbon, a clamping and guard member in said frame below the rib and between said spools, and adapted to be displaced transversely of the major axis of the frame, to clamp the blade into shaving position .against the said rib, holes in said ribbon-shaped blade at a distance corresponding to the length of blade adapted to be used for each shaving operation, and a knob or nose on 6 said rib adapted to engagesaid holes in the blade in order to provide a, guiding means `for the blade in the transverse direction thereof and alsoto ensure a correct adjustment of the blade in its` longitudinal direction when a new part of the 10 blade is being put in position for use.

3. A safety razor, comprising an oblong flat frame having a' rib extending transversely across approximately the middle of one longitudinal side thereof, a spool in each longitudinal end l5 of the frame, a continuous ribbon-shaped razor blade mounted on and extending between said spools, one spool containing the fresh blade portion and the other the used portion of the ribbon, a clamping and guard member in said frame 20 below the rib` and between said spools, and adapted to be displaced transversely of the major axis of the frame, to clamp the blade into shaving position against said rib, and a blade spring attached to said frame between said guard mem- 25 ber and thefspool containing the un-used part of the blade, said spring engaging the razor blade with its free end so as to press the same against said rib and also serving to form a closed receptacle adapted to be filled with a suitable lubri. 30 eating material.

NICOLAY KNUDTZON FOUGNER.

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