US1555961A - Safety razor - Google Patents

Description

ct. 6, l925- M. G. GILLETTE SAFETY RAZOR Filed May 12' 1923 Patented Oct. 6, 1925.

UNITED STATES MOTT G. GILLETTE, 0F GARDEN CITY, NEW YORK.

SAFETY RAZOR.

Application led May 12, 1923. Serial No. 638,594.

To all whom, z't may con/cem:

Be it known that I, Mo'r'r G. GILLETTE, a citizen of the United States, residing at Garden City, in the county of Nassau and State of New York, have invented cert-ain new and useful Improvements in Safety Razors, of which the following is a specification.

The invention relates to improvements in a safety razor.

It is an object of the invention to provide a safety razor wherein the guard is constructed to prevent cutting of the face of the user, and at the same time is so formed as to rapidly and satisfactorily cause the lather with the severedhars of the beard to rapidly pass from the razor blade to the lower surface of the guard to facilitate the shaving` action.

With the foregoing object in mind, the invention preferably comprises a razor in which the guard along each side is provided with a longitudinal slot having interposed therein at spaced intervals V-shaped part-itions, which serve not only to strengthen the outer edge of the razor to prevent bending or breakage thereof, but the sides of which perform-the added function of guiding or forcing the lather with severed hairs through the slot in the razor guard to the back thereof, thereby facilitating the proper working of the cutting edge of the blade. From a more specific aspect, the so-called partitions which are substantially V-shaped in cross section, are so arranged that the apex of the partition lies against the upper surface of the blade, the partitions gradually widening toward the exposed surface of the `guard Providing the inclined walls for directing or guiding the lather removed by the blade through the slot to the exposed surface of said guard.

In the accompanying drawings, Figure 1 illustrates a view with parts in section.

Figure 2 a longitudinal view of the guard removed; and,

Figure 3 a sectional view.

Referring now more particularly to the drawings wherein like reference characters indicate corresponding parts the numeral 1 designates the razor backing which is preferably slightly concaved and is provided with the usual straight edges 2. The backing is also formed with a threaded shank 3 extending centrally therefrom which is adapted to receive the guard 4 and the in terposed blade 5 having the usual cutting edges. `A threaded handle 6 cooperates with the shank for tightly bringing the parts together.

Referring now more specifically to the subject matter of this invention the guard 4 has arranged therein near each side edge the longitudinal slots 7 and 8. These slots are bordered with a relatively thin outer wall 9 and it will be appreciated that the blade is so positioned that the edges thereof terminate about midway of the width of said slots when in use. I have discovered that the use of such elongated slots alone is not entirely satisfactory because the Webs 9 are necessarily quite thin and they are likely to bend or become fractured upon the accidental falling of the razor or during very 4rough usage thereof. To overcome this difficulty and to furthermore provide a means for ra. idly removing the lather wlth the beard fliorn the blade through the slot, I provide a plurality of partitions 9', as clearly shown in the sectional view. Three of these partitions are shown, although more can be used, depending upon the size of the razor. The partitions are of V-shaped construction, with the point of the V terminating at the lower side of the guard, that is that portion of the ,guard lying immediately in contact with the lower surface of the blade. The Walls 10 of the partitions diverge .'outwairdly toward the lower edge of the guard and the partitions are, as before stated, substantially V-shaped in cross section. These partitions because of such construct-ion not only add rigidity to the guard sufficient to cause it to Withstand all stresses and strains, but also provide inclined walls 10' which offer surfaces engaged by the removed lather when the razor is in use and which surfaces serve to cause the lather to rapidly pass through the opening 7 to the lower edge of said guard 4. This prevents the openings 7 in the guard from becoming clogged or closed with lather and removed hairs, which is a difficulty now often experienced with the usual type of razor guard havin the lingered edges. It is thought that it wil be apparent from the disclosure that the tapered partitions, having their apex lying at the u per surface of the guard and adjacent the blade with their widened portions at the lower surface of the guard, will serve admirably in facilitating the passage of the removedV lather througbythe guard and away from the blade. The razor parts are constructed of the usual materials known to those skilled in the art and it will, of course, be understood that anyd metals that are satisfactory may be use While I have disclosed the invention as being applied to the Gillette type of razor, it will be apparent that is has equal application to other types of razors.

Having thus described my invention, what I claim is:

1. A razor having a backing, a blade adapted to be seated thereon, a guard disposed over rsaid blade, a handle for the razor, said guard having alongitudinal slot therein near one edge, widely separated supporting'partitions in said slot of substantially -shaped cross section, the apex of the partition bein disposed adjacent the lower surface of t e blade and forming a su port for said blade, said partitions gradua 1y widening toward the lower surface of the guard.

2. A razor having a backing, a blade adapted to be seated thereon, a guard disposed over said blade, a handle for said razor, said guard having longitudinal slots therein near each edge, widely separated supporting partitions in said slots of substantially V-shaped cross section, the apex of said partition being adjacent the lower surface of the blade, said blade being partially supported by said partitions, said partitions gradually widening toward the lower surface of the guard.

In testimony whereof I ax my signature.

MOTT G. GILLETTE.

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