US1747815A - Safety razor and the like - Google Patents

Description

Feb. 18, 1930. c. E. CARPENTER SAFETY RAZOR AND THE LIKE Fil ed March 5. 1928 6 WWW Patented Feb. 18, 1930 v UNITED STATES PATENT errorv CHARLES E. CARPENTER, OF CHICAGO, ILLINOIS SAFETY RAZOR AND THE LIKE Application filed March 5,

: razor of such form that it will most perfectly conform to the natural positions of the hand during the shavingoperation, so as to enable the user to most easily reach and properly shave the more diflicult and inaccessible portions. F or the above and other reasons the razor herein'disclosed is made non-rectangular in form, being adapted to receive and use blades which are also nonrectangular in form, both the holder and blades being trapezoidal in form and in the form of parallelograms. By this arrangement there are provided corners at the'ends of the blade, one being sharper than a right angle, and the other being less than a right angle, and the sharper angle can 7 be used to shave up close to the corners of the nose, and other parts where a rectangular blade cannot be so readily used. a This feature of the invention may be used in'connection with either ordinary razors or safety razors, as Will more fully appear hereinafter.

Another feature'of the invention relates to the provision of a safety razor blade holder which is properly designed tov receive and hold blades embodying the feature just above referred to. In this connection it will be noted that owing to the peculiar form of the blade the holder should be properly formed to conform thereto, and present the blade in the proper position to the face of the user.

Another feature of the invention relates to an improved arrangement of holder for safety razor blades. In this connection the holder herein disclosed is provided with a new and improved form of lock for securing the back andbase sections together when the blade is in place therebetween, suchv lock being of very simple form, and being so arranged that it can be very easily manipulated to either lock or unlock the blade. More particularly, in this connection the lock herein disclosed is so arranged that the blade is either locked or unlocked by simply turning the handle through about one-quarter turn, thereby disengaging or engaging the compan 1928. Serial No. 259,347.

ion part. When the handle is turned into the locking position there is exerted a wedging or cam action which very effectively secures the blade in place, and the amount of this action is sufiicient to prevent disengagement eX- cept intentionally by the user.

A furtherfeature of the invention relates I to the provision of an improved form of guard for the blade. This guard is provided with a series of holes adjacent to the edge of theblade and the lather will be delivered up through these holes so that the guard is completely self-cleaning at all times.

Other features and objects of the invention willappear from a detailed'description of the same whichconsists in the features of construction and combinations of parts here inafter described and claimed.

In the drawing:

Fig. 1 shows a perspective View of a safety razor embodyinglthe features of the present invention, and with the handle turned into the locking position;

Fig. 2 shows another perspective view sim ilar to that of Fig. 1 but with the handle turned into the unlocking position, and with the guard and back plates separated from each other;

F ig. 3 shows another perspective View similar to that of Fig. 2 but looking at the other side of the device;

.Fig. 4 shows a cross-section substantially on the line 4l4 of Fig. 1 looking in the direction of the arrows;

Fig. 5 shows an inside face view of the back plate of the form of construction illustrated herein; H i

Fig. 6shows an outside face view of the back plate and shows the guard edge projecting beyond the edge of the back plate, and this figure is taken looking directly at the parts so it shows also the fact that the device is non-rectangular in form;

Fig. 7 shows a face view of one of the blades, and shows the fact that it is non-rec- 9 tangular in form; and

Fig. 8 shows a cross-section similar to that of Fig. lbut illustrates a construction having a curved surface guard so that the blade will be bent or curved when the guard and back plate are brought together, as in the case of the so-called Gillette blade.

The safety blade holder comprises the guard 10, the back plate 11, and the handle 12. The guard and back plate are hinged together at their rear edges. This is conveniently done by the use of eyes 13 and 14 formed on the back plate by turning over the edges of the same as shown so as to overlie the edges of the guard. These eyes received pins 15 and 16 which project from the rear edge portion of the guard, and the parts can be very easily assembled in pivotal form by completing the bending operations on the back plate after the guard has been set into place.

The guard is of generally flat form, but preferably its central portion is slightly offset as shown at the line 17 so as to bring its outer working edge portion into a different plane. Said outer working edge portion is also provided with a series of perforations 18 which are of fair size so that the lather will readily work therethrough to the back face of the guard.

The back plate 11 is preferably of generally cup shape as shown. In this connection it will be seen that this plate curves substantially on the surface of a cylinder which has a slightly varying diameter, and the edge portions of the back plate are folded over as shown at 19 and 20, the rear portions of these folded parts constituting the eyes 13 and 14 already referred to. lVhen the guard is brought into the working position with respect to the back plate the edges of the guard lie between these folded over parts of the backplate as is clear from examination of Fig. 1 in particular.

The back plate has a lug or stud 21 which is placed about centrally thereon. This lug reaches through the concave portion or cup of the back plate, and is of sufficient length to also reach through a central perforation 22 of the guard when the parts are in work ing relation. Preferably the end of the lug is rounded as shown so that it will not catch on other objects. This end of the lug is also provided on one side with a notch 23 of substantial depth.

There is a handle 24 which has its inner end 25 pivoted to the guard. This is done in any convenient manner as for example by riveting the end of the handle rather loosely to the guard. It is therefore possible to turn the handle rather easily with respect to the guard, but there is a flange 26 on the handle and lying against the outside face of the guard so as to keep the handle properly aligned as it is turned. The handle is .p'ivoted to the guard at a position rather close to the position at which the lug 21 comes through the hole 22 when the parts are in working position and relation, and the flange 26 serves the additional function of engaging the notch 23 when the parts are in the proper relationship to each other.

The flange 26 has at one side a cut away portion 27 so that when the handle is turned to the position to bring said cut away portion adjacent to the lug 23 the guard and back plates can be brought together, the lug passing through the hole 22, and then the handle can be turned so as to cause the flange 26 to ride throughthe notch 23 of the lug 21 thereby locking the parts together.

The handle is bent at a point close to the pivotal point so as to establish the proper relationship between the parts for the shaving operation. The cut away portion of the flange 27 is so placed that when the handle is turned into the normal working position the parts are locked together, and to unlock them it is necessary to turn the handle around and away from such working condition. This fact will be well understood from examination of Fig. 2 in particular.

Examination of Fig. 6 will show that the guard and back plates are non-rectangular in form. This fact presentsa relatively'sharp corner 28 at one end of the working edge, and a relatively broad corner 29 at the other edge. Consequently it is very easy to reach the corners of the face which have been heretofore most diflicult to reach for the shaving operations. The blade 30 is similarly formed so as to conform to the shape-of the guard and back plates. The blade shown in Fig. 7 has only a single sharp edge 31, but manifestly other forms of blade might be used, such as those which are sharpened on both edges.

The blade 30 is set between the guard and the back plate before these parts are brought together. The guard is preferably provided I blade has the holes 34 and 35 to conform thereto. In some cases the blade maybe provided with a continuous slot of proper length to receive both of these pins 33 and 32, and in other cases a different number of pins can be used as described. When the back plate is locked to the guard with the blade in position said blade will be very effectively held in place not only by the pressure exerted between the back plate and the guard but also by reason of the pins referred to,

In the modified form shown in Fig. 8 the guard is curved on a generally cylindrical surface to conform more or less to the form of the back plate. This arrangement will require the bending or curving of the razor blade when the parts are locked'togeth'er, and

this type of construction is therefore well only that it is not turned far enough to disengage the flange 26 from the notch 23.

While I have herein shown and described only certain forms of construction embodying the features of my invention, still I do not intend to limit myself thereto except as I may do so in the claim.

I claim: A safety razor comprising in combination a guard, a back plate therefor, a hinged connection between the rear edges of said parts, a lug on the central portion of the back plate and projecting towards the guard, there being a perforation in the guard in position to receive said lug When the parts are in Working relationship, a handle, a pivotal connection between the inner end thereof and the guard at a point adjacent to said perforation, a flange on the handle adjacent to 29 the outer face of the guard and overlying the edge portion of the perforation aforesaid, there being a notch in the lug at that side Which lies adjacent to the position of the handle When the parts are in Working relationship, and there being a cut away section of the flange at that side Which lies away from the position of the lug When the parts are in Working relationship, substantially as described. 30 CHARLES E. CARPENTER.

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