US1354658A - Safety-razor - Google Patents

Description

T. M. KANE. SAFETY RAZOR. APPLICATION FILED NOV. 19. 1919.

Patented Oct. 5, 1920.

PATENT OFFICE.

THOMAS MICHAEL KANE, 0F BALTIMORE, MARYLAND.

SAFETY-RAZOR.

Specification of Letters Iatent.

Patented Oct. 5, 1920.

Application filed November 19, 1919. Serial No. 339,045.

T 0 all whom it may concern:

Be it known that I, THOMAS M. KANE, a citizen of the United States, residing at Baltimore, in the State of Maryland, have invented certair new and useful Improvements in Safety-Razors, of which the following is a specification.

This invention relates to safety razors, and more particularly to that type in which the cutting edges of the blades re held substantially parallel with the axis of the handle.

The invention comprises improvements whereby a plurality of cutting edges are provided, and whereby the blades are so supported as to prevent clogging of the razor by lather when in use, and it also comprises improvements whereby the handling of the razor while in use is facilitated. The invention also relates to certain details in construction which will be hereinafter pointed out.

In the accompanying drawing, which illustrates my invention,

Figure 1 is a side View of the complete razor;

Fig. 2 is a central section through the blade holder and through the sleeve which surrounds the handle;

Fig. 3 is an end View of the blade holder with blades thereon;

Fig. 4 is a plan view of one of the blades; and,

Fig. 5 is an edge view of the same.

Referring to the drawing, A indicates the blade holder, which is rectangular in outline and provided with teeth or serrations 1, at its opposite edges. The blade holder is preferably formed from two similar sheet metal plates 2, united along their serrated edges, as shown at 3 in Fig. 3, and, as shown in the drawing, secured to a bar 4, which extends longitudinally between the plates, by rivets 5. The ends of the plates, as shown in Figs. 2 and 3, have raised portions 6 and 7, for supporting the razor blades out of engagement with the intermediate portions of the plates. Flanged guides 8 are provided on the outer ends of the plates, adjacent the raised portions, and

guides 9 are provided at the inner ends of the plates adjacent the raised portions, the latter guides being simply projections without flanges.

Each blade, as shown in Figs. 4 and 5, comprises a thin, steel plate 10, having parallel cutting edges 10 and extending along the longitudinal center of the plate is a metal fastening strip 11 which, as shown, is doubled upon itself and the blade lies between the two folds 11 and 11 of the strip and is secured to the strip by suitable means, such as the rivets 12, which pass through the blade and both folds of the strip. The part 11 of the strip, in which the bend is formed, projects beyond one end of the plate, and the two ends of the strip, 11 and 11 project beyond the opposite end of the blade. The strip has parallel edges throughout the greater part of its length, but the art 11 gradually widens toward its end, orming a wedge. In placing a blade upon the blade holder, the projecting part 11 of the strip is slipped under the flanged guides 8, as shown in Fig. 2, and rests upon the raised portion 6 of the holder, and the projecting part 11 of the strip rests upon the raised portion 7, while the wedge-shaped end 11* fits between the guides 9. The strip is forced endwise by means to be presently described, causing the wedge portion of the strip to bind tightly between the guides 9, and the blade is thus firmly held against endwise movement. v

The central bar 4 in the body of the blade holder has a threaded stud 13, at one end, and a cylindrical rod 14 has a threaded axial bore 14 which engages said stud. The rod 14 has a flange 14 at one end, and a knurled nut 14, is securely fastened to its opposite end, and a sleeve 15 is rotatably mounted upon the rod and held against endwise movement thereon by said shoulder and nut. This sleeve has two diametrically opposite flanges 15 adapted to bear against and fit over the wedge-shaped ends 11 of the fastening strips. It will be evident that by grasping the plate holder in one hand and turning the rod 14 through the medium of the nut 14, the rod may be backed away from the head to disengage the flanges on the sleeve from the blades, and by turning the rod in the opposite direction, the sleeve may be moved to carry said flanges over the blades and to then force the blades forward so that the Wedge-shaped ends of the fastening strips will bind between the guides 9.

Upon the outer end of the sleeve 15 is rotatably mounted a collar 16, and the two ends of a split ring 17 are pivotally connected to said collar at diametrically opposite points. This ring 17 is adapted to swing over the outer end of the handle and is large enough in diameter to receive one or two fingers of the operators hand, such as the third or fourth finger, or both. This swiveled connection of the ring with the ha le is important in using the razor as it enables the operator, while supporting the razor on the finger or fingers which extend into the ring, to turn the handle and blade holder with the thumb and remaining fingers of the same hand, to any angle desired.

It will be noted from an inspection of Fig. 2, that the blades are supported out of engagement with the, main portions of the blade holder, and this avoids the trouble which is common with safety razors of having the razor become clogged with lather, etc., between the blade and the holder. In the present invention, the lather can pass freely between the blade and the holder and can be readily flushed out by rinsing the holder.in water. It will also be observed that four cutting edges are provided, by the insertion of two blades, and this avoids the necessity for fre uently changing the blades. If one cutting e ge happens to be dull, the operator may use another.- It will also be noted that as each blade has two cutting edges, facing in opposite directions, the operator may shave downwardly or upwardly with the one hand by using the different edges, and also that as the razor has blades on its opposite sides, each with two cutting edges, the operator may shave upwardly or downwardly and use either the ri ht or left hand, with equal facility.

referably the flanges 15 will be differently marked, as by numbers one and two, and the fastening strips on different blades will be correspondingly marked, so that the owner, by notin the markings may know which blades an edges have been used.

What I claim is:

1. A safety razor comprising a handle and blade holder, and a ring having a swiveled connection with the outer end portion of the handle and adapted to turn about the axis of the handle and to swing over the end of the handle.

holder having raised portions and guides 2. A safety razor comprising a blade portions and fit within said guides, one of said parts being wedge-shaped.

6. A safety razor comprising a blade holder having raised portions and guides at its ends, and a blade having a fastening strip projecting from its ends, the projecting parts of said strip adapted to fit within said guides.

7. A safety razor comprising a blade holder having raised portions and guides at its ends, and a blade having a fastening strip projecting from its ends, the projecting parts of saidstrip adapted to fit within said guides, one of said parts being wedgeshaped.

8. A safety razor comprising a blade holder having raised portions and guides at its ends, and a blade having a fastening strip projecting from its ends, the projecting parts of said strip adapted to fit within said guides, one of said parts being wedgeshaped, and means for exerting endwise pressure upon said strip.

9. A safety razor comprising a rectangular blade holder having guides at its ends, a blade having projecting parts at its ends adapted to fit within said guides, one'of said parts being wedge-shaped, a rod having a threaded engagement with one end of said blade holder, and a sleeve on saidrod having a flange adapted to engage one of said projecting parts.

10. A safety razor comprising a rectangular body having raised parts at its ends on its opposite sides, a handle projecting from one end of the body, and blades havin parts at their ends resting upon said raises ends and removably secured thereto.

11. A safety razor comprising a rectangular body and a handle projecting from one end thereof and blades mounted on op posite sides of the body, each blade having two cutting edges extending parallel with the axis of the handle.

12. A safety razor comprising a rectangular body, blades on opposite sides of the body, a rod having a threaded connection with one end of the body, a sleeve mounted on said rod and rotatable relatively thereto, said sleeve having flanges adapted to project over the body on its opposite sides and engage the blades.

In testimony whereof I aflix my signature.

THOMAS MICHAEL KANE.

Images