US1894553A - Safety razor - Google Patents

Description

C. D. DUDEW Jan. 17, 1933.

SAFETY RAZOR Filed Jan. 25, 1930 fig! 7n ven for D. Duolew C72 Fr Patented Jari. 17, 1933 PATENT OFFICE:

' CHRISTO DIMITROFF DUDEW, 0F SOFIA, BULGARIA `SAFETY Application led January 25, 1930, Serial No.

The present invention relates to a razor having a stationary resilient blade and a trough arranged below the blade `support which dili'ers in an advantageous manner from the razors heretofore known.

By means of the razor according to this invention, an easier, more agreeable, and more convenient shave is to be rendered possible.

The razor according to the invention 1s characterized by this that the trough arranged below the blade support is provided with lateral openings underneath the blade through which can .pass not only the detached halrs and the scraped otl' lather, but also the lather which is scraped off the skin when the razor is drawn over the latter. In this way the hand guiding the razor is alwa'ys free from lather and all the lather is collected in the trough.

According to a further constructional form of the invention, the comb guards may be arranged on the trough itself, in which case the gaps between the prongs of the comb form the lateral openings for the trough. In this constructional form the blade support is provided with longitudinally disposed recesses in order to leave an intermediate space between the same and the trough for the passage of the hairs and the lather.

Moreover the protecting combs arranged on the blade support, instead of lying in the direction of the support as hitherto, may also be arranged on downwardly drawn arms. In this case the trough lies against the comb guards uniting the arms, and the lather enters the trough through the lateral openings between the arms.

The oonstructional form of the blade support with downwardly drawn arms offers, even when using the razor without va trough, a substantial advantage in as much as the blade lies free and the comb guards are disposed at an angle to the blade. S'toppage of the space between the blade and the comb guards by means of detached hairs or lather is prevented therefore, so that the blade maintains its good cutting power. It is already known to arrange the comb guards at an angle to the free blade. In this razor the comb guards are on arms vspecially arranged RAZOR 424,088, and in Bulgaria February 18, 1929.

on the razor. By means of the invention the advantages of greater safety, durability, handiness, and cheapness of production are attained through this, that the protecting combs arranged at an angle to the freely disposed blade are arranged on the blade support itself, i. e. form one part with it.

According to a further constructional form .of the invention the trough for receiving the detached hairs and the lather may also be so constructed that it consists of one piece with the blade support. In this case the blade support is constructed as a hollow member and has lateral openings, as well as comb guards, for the passage of the detached hairs and the lather.

For the purpose of cleaning the trou h rapidly and conveniently the same may e attached to an apparatus for automatically sucking away the contents of the trough, e. g. to a known suction device. The suction device is, for example, attached to the hollow handle, the hollow space of which is in connection with the trough.

The trough may consist, in razors, inwthe known manner of a material intended to be used once. The invention further relates to the shaping of the narrow sides of the razor blade, which for the purpose of facilitating the holding of the blade during the manufacture and during use, as Well as for the purpose of the better holding of the same, are shaped waved-form in the known manner. Further the blade support may be constructed comb-shaped on its narrow sides so that it can be used as a comb.

In the further modification of the invention, vertical, longitudinal or transverse partitions may be provided inthe trough, so that the latter is divided up into several smaller compartments and thereby the suctionof the contents of the trough is facilitated. Further, one or several other troughs may be slipped into the trough in order to facilitate cleaning the trough. In this case the troughs to be slipped in are made of cheap material intended to be used once.

In the accompanying drawing several constructional forms of the razor according to this invention, are shown by way of example:

Figure 1 shows a plan view of the upper covering or holding plate. I

Figure2 shows this plate in side View.

Figure 3 shows the razor blade.

Figure 4 shows one constructional form of the lower holding plate.

Figure 5 shows a second constructional form, and

Figure 6 a third constructional form of this lower supporting plate.

Figure 7 is a plan view of one constructional form of the trough. y Figures 8 and 9 show in plan view further constructional forms of the trough.

Figure 10 is a view of one constructional form of an assembled razor, partly in section.

Figure 11 is a plan view of one part of a second constructional form of the lower hold in plate having comb guards.

hgure 12 shows the upper part of an assembled razor of the second construction form.

Figure 13 is a side View of the razor shown in Figure 10. n

Figure 14 is a view of the constructional form of the trough according to Figure 9.

Figure 15 is a perspective view of a razor having a trough with a blade support according to Figure 12.

Figure 16 shows a trough consisting of one piece with the blade support.

Figure 17 shows a section through a further constructional form of the trough.

The constructional form of the razor shown in Figure 10 consists of a trough 1, which consists of one 'piece with the handle 2 or which can be united with the latter to form one piece, in which case a tubular intermediate member 7 may be used. 3 is a tube projecting into the handle which is provided at the top end with a thread in order to hold a screw member 4 provided on the upper covering plate 5. The razor blade is denoted by 6. 15 is a tubular member which is attached to the lower holding plate 9 (Figure 4) and grips around the screw member 4. On the upper holding plate 5 guiding pins 8, 8a are attached.

A modified constructional form of the lower holding plate is denoted by 9a (Figure 5) and also by 10 (Figure 6). The holding plate 9a is provided with a larger, substantially rectangular aperture 9b. The constructional form of the supporting plate 10 shown in Figure 6, is such that it has approximately the shape ofthe razor blade, only that it is narrower than the blade. This form of the lower supporting plate may be used when bridge pieces 11 or the like, ac," cording to Figure 8, or members 12, 12a or 12b, 12o according to Figures'9 and 14, are provided in the trough 1. In this case thel supporting plate 10, which has almost the same shape and size as the razor blade 6, serves as the bridging support for the blade.

The plate 10, like the plates 5, 9 or 9a, may conslst of metal; they ma-y however also be made of lighter material, e. 0. Celluloid or paper. In this case they would only be capable of being used once. The lower holding plate 9 or 9a or the supporting plate 10 may also be firmly united with the trough 1, or may also consist of one piece with it.

While the razor is being used the detached hairs and the lather can enter unhindered into the trough 1 through the intermediate ,spaces between the prongs and through the intermediate space which is present between the free ends of the prongs and the cutting edges of the blade. For` this purpose the lower holding plate 9 (Figure 4) or 9a (Figure 5) has recesses on the longitudinal sides. Also when' using the supporting plate 10 (Figure 6) there is present between the bridge pieces 11 (Figure 8) or members 12 or 12a (Figure 9) arranged on the lower part 1 of the trough, sufficient space for the passage of the detached hairs and the lather. The hairs and the lather collect in the trough during the shaving so that the same can no longer drop 0H.

The lather with the detached hairs collecting in the trough can be removed from the trough after completion of the shaving if the whole razor is taken apart and cleaned. It is not necessary to cleanse in the course of the shaving.

For the purpose of attaching an apparat-us for automatically withdrawing the contents of the trough on the razor, the handle of the latter may for example, be constructed hollow and communicate through apertures with the interior of the trough. The handle is then attached, for example, to a suction apparatus or the like which automatically sucks away the contents of the trough through a exible tube of metal, rubber or other suitable material. Suction apparatus may be employed with advantage more particularly when the razor is used professionally by hairdressers.

The bridge pieces 11 or the members 12 may be used with the plate 10 serving as support either separately or simultaneously. The parts 12 or 12a may also be so constructed that they completely close off the trough on the narrow sides. This is moge particularly essential when the automatic withdrawal of the contents of the trough is to be effected by suction or by mechanical devices. As mechanical withdrawal devices, for example, rotating wires may be used. The withdrawal by suction may be eiected continuously or periodically.

In the modified constructional form shown in Figure 12, the trough and the lower holding plate each form an independent part. A dish 13 or the like serves as a trough. This dish may consist of metal, it may however also be made from lighter material, for example, celluloid or paper, in order 2in this case to be renewed each time after use. The upper part 17 lying over the trough 13 is formed from the blade support, on which the comb guards with prongs (Figure 15) ,are provided, which are carried by downwardly drawnarms with lateral openings, through which openings the lather and the detached hairs can reach the interor of the trough 13.

In Figure 15 the trough 14 has a trapezoidal shape cross section, The edges of the longitudinal walls of the trough abut closely on the comb guards.y The detached hairs and the lather, -as shown in Figure 12 by means of arrows, here also enter the trough 14. between the prongs of the comb guards and through the lateral openings.

In the constructional form according to Figure 16, the blade support is combined into one piece wth the trough. The trough 24 is closed off at the narrow sides. The lather enters into the interior of the trough through\ openings 25. l

In order to increase the suction eifect, the vertical transverse partitions 22, 23 (Figure 17) may be provided in the trough. The trough 21 is in this vcase preferably rigidly connectedwith the handle.

The blade may be so shaped that its narrow sides are wave-shaped (Figure 3). In this way easier and more agreeable shaving andholding of the blade is rendered possible.

lThe trough 1" or the member 17 may have any suitable shape and may, for example, be cgnstructed oval, trapezium or elllptical s ape.

In the constructionalform of the trough according to Figure 12, the comb guards are arranged on the blade support 17', whilst the comb guards inthe constructional form according to Figure 10, are situated on the trough 1 attached to the handle 2. The narrow sides of the holding plates 5', 9, 9a or 10, maybe provided with comblike, indentations 19, so t at the moustache or the beard can be combed with the same.

What I claim is: y

v1. A safety razor equipment comprising a lowerf supporting. plate for a razor blade having an upper` surface to which the blade may be clamped, said supporting plate having downwardly extending arms, a trough having a perforated bottom and an` upwardly extended side lportion` against the upper side portions of w ich the endsof said arms rest and a row of prongs vextendin .above the trough from where said arms an trough meet and at an angle to said arms to leave an open space between said row of prongs and the side of said holding plate, a razor blade and means to clamp it to said holding plate and when so clamped tothe holding plate said'blade will extend into said 'open space but terminate short' of the plane of the row of prongsto leave said space open @lamp a razor blade, said plate.

from end to end of the holding plate and allow free movement of the lather downwardly into the trough except for the obstruction caused by said downwardly extending arms.

2. A safety razor comprising a trough having closed ends and, a lower blade holding member located in the upper portion of said trough and supporting arms for said blade holding member extending downwardly and outwardly therefrom, a solid side bar portion having a row of prongs on its upper edge extending upwardly at an angle to said arms, the prong portions terminating in front of a razor blade when clamped to said holding member there being left avacant space between said prongs and said arms and extending from end to end of the holding member to allow free escape 0f the lather into said trough through said space and downwardly past said arms, a tubular handle for said trough, an upper coveringlplatetov downwardly extending stem into said handle.

In testimony whereof I' have signed my name to this specification.

CHRISTO DIMITROFF DUDEW.

screw threaded aving a

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