US2049865A - Safety razor - Google Patents

Description

y www5 H. E. RAMSAY SAFETY RAZOR ug. 4, i936.

Filed Feb. 28, 1953 FBGi.

Patented ug. 4, 1936 UNiT'eD# ST ortica SAFETY RAZOR city. Okla.

Application February 28, 1933, Serial No. 658,957

6 Claims.

My invention relatesA to a safety razor, and more particularly to a razor of the character mentioned which is provided with means whereby the blade may be thoroughly cleansed without removing it from` the razor, and while the several parts of the razor and blade are in loosely assembled position.

Thev objects ofV my invention are to provide a device of this class which is new, novel, practical and of utility; v

The invention further comprehends the pro- -vi'sion of a safety razor constructed so as to permit the lower guard to revolve with respect or reference to thel blade, together with means operative upon rotation of the lower guard for effecting a scraping of that face of the blade presented rtoward the revolving lower guard thereby to insure a `thorough cleansing of the blade.

Another. feature and object is that it expedites athoroughvcleansing of the blade without requiring a disassembling of the razor therefor, and the consequent reassembling of the parts thereof for furthen or future use.

It is a' further object to provide a safety razor Which may be readily cleansed after use and which will insure a positive and efficient removal of accumulation fromthe blade without requiringv removal ofthe blade from the razor, and generally to improve upon known typesv of safety razors.

A'further object is't'o produce' a razor" of the class described the parts of which maybe easily', quickly; and readily disassembled' and reassembled; which will be easily operated; which is simple; and yet durable; and which will be efficient in accomplishing all'the objects and purposes for which it is'intended,

Heretofore, some have claimed ythat the razor blade can be rinsed by loosening the parts of the Vrazor sufficiently to permit the flexed blade to return to its normal plane contour and thus become spaced from the guard. However, in the type of' razor blade under present construction the guards and blade revolving under action of the water duringrinsing, very often become completely disassembled, whereas, in the present invention the possibility of the guard becoming completely separated from the handle is preeluded. v

With these andi other' objects inview as will more fully appear; my invention consists in the construction, novel features, and combination of parts hereinafter` more fully described, pointed outfin'- the claims hereto vappended-v and illustrated (ci. rsii-41) in the accompanying one sheet drawing, of which,

Figure 1 is a sectional elevational view of a safety razor embodying the features of the prese ent invention, the blade being shown in its. loosed position with relation to the lower guard of the razor;

Figure 2 is a bottom plan view of the upper guard;

Figure 3 is a top plan view of the lower guard;

Figure 4 is an end elevation of the upper guard;

' Figure 5 is an end elevation of the lower guard;

Figure 6 is a transverse sectional View taken substantially on the line 6 6 of Figure 1; and

Figure 7 is' a plan view showing the lower guard rotated approximately ninety degrees with relation to the upper guard.

' Lilie characters of reference designate like vparts in all the figures.

It Visunderstoodv that various changes in the form, proportion, size, shape, weight, and other details of construction, within the scope of my invention, may be resorted to withoutY departing from the spirit or broad principles of my invention and without sacrificing any of the advan tages thereof; and it is alsol understood that the drawing is tobe interpreted as being illustrative and not restrictive.

Referring now more particularly and in detail to the drawing, it willY be seen the razor comprises a handle 5 which is open at its upper end, saidhandle 5 being preferably knurled, and is provided at its upper end with internal screw threads 6, and inwardly from said end with an internal shoulder l. The guard of the razor cornprises an upper or outer guard 8, and lower or inner guard 9. In the present instance means is provided for positively retaining the lower guard in a fixed clamped position between the upper guardi! and the upper end of the handle 5 or in a loose position between said upper guard 8 and handle 5 for rotation relative thereto as desired, such'means consisting of a stem il) having an enlarged intermediate portion i5, the lower part of which is coarsely threaded as at Il for cooperation with the thread 6- of the handle 5 while theV upper portion of the enlarged intermediate part of the stem is smooth, or non-threaded, as shown. The lower guard 9 is provided, intermediate its ends with a suitable opening for receiving the enlarged portion of the stem lil, and 'on the under side is providedwith two slightly arcuate lugs 25 for providing better surface facility-*for the catching of the water in cleansing.'

The upper guard 8 is provided with a finely threaded aperture I3, and on the under side of the guard 8 in line with the aperture said guard is provided with a boss I4 which is adapted to abut the shoulder I5 formed by the enlarged intermediate portion of the stem I8 when the nely threaded end 4 of the stem IIJ is screwed into the aperture I3 of said upper guard 8. Y

Said stem I extends from its finely threaded end 4 through the handle 5 and out at its nether end, being opposite to the end whereon said guard is disposed. On its lower end said stem I0 is equipped preferably with a knurled knob I6 arranged to engage and co-act with a shoulder I'I adjacent said nether, or outer end of said handle 5, when the handle 5 is threaded downwardly to thereby limit movement of said handle 5 relative to the guard 8 when said handle is rotated in a counter-clockwise direction for loosening the lower guard 9. Knob I6 and shoulder I1 thus provide interengaging means for preventing the complete removal of the handle 5 from the stem I8, as is apparent.

The blade to be clamped between the guards V8 and 9 is of the usual and conventional type of construction and is designated generally by the reference character I8. In the present instance the blade I8 is of a well known type of blade equipped with a longitudinal slot intersecting a series of relatively spaced apertures, and is recessed or cut-away at each of the four outer corners, such type of blade being now commonly used.

To retain blade I8 against rotation relative to guards 8 and 9, the upper guard 8 is provided on its under side with longitudinally extending ribs I9 projecting from relatively opposite sides of the boss I4 and these ribs I9 are provided at their free ends with depending lugs 20. At each corner of Ythe bottom side of the guard 8 said guard 8 is provided with a depending lug 24 for co-acting with the respective four outer co-rner cut-away portions of said blade member I8. The lower guard 9 on its top side is provided centrally with longitudinally extending grooves 2I for accommodating the ribs I9 when the guards 8 and 9 are in their final position for clamping the blade I 8 therebetween, it being understood that the ribs I9 extend through the slot of the blade and enter the grooves 2l when the guards 8 and 9 are in their final blade-clamping position. Likewise, the lugs extend through the openings provided in the blade I8 adjacent the ends of the referred to slot, and are received in arcuate transverse notches or grooves 22 provided inwardly from the ends of the lower guard 9. Thus, with the ribs I9 iitting in the grooves 2 I, and the lugs 20 tting in the arcuate grooves 22 the blade I8 will be secured against rotation relative to the guards 8 Y and 9 when the latter are in their full bladeclamping position. It will also be apparent that when the guards 8 and 9 are separated as shown in Figure 1, the ribs I9 and lugs 20 engaging the blade I8 in the manner above explained and depending lugs 24 co-acting with the cut-away corners of said blade I8 will retain said blade I8 against rotative movement relative to the guard 8.

The guard 9 has the longitudinal sides of its grooves 2I rising above the plane of the top surface of the guardrand beveled or otherwise formed to provide parallel scraping edges 23, which edges, as shown in Figure 5 have wiping engagement with a face of the blade I8 when the parts are in the position shown in Figure 1; thus it will be seen that with the parts as shown in Figure 1 a rotation of the guard member 9 relative to the blade I8 and guard member 8 will cause the scraping edges 23 to move over the face of the blade and thereby remove any accumulations on said face of the blade I8.

The use and operation of the razor is thought to be apparent from the foregoing.

In assembling the parts, the stem I8 is rst threaded inwardly of the handle 5, and the knob I6 attached. Next, the blade I8 is placed on the guard 8, the ribs I9, lugs 28 and boss I4 being presented upwardly to pass through the slots and openings usually provided in the blade. Guard 9 is then placed on top of the blade I8 with the groove 2| receiving the ribs I9 and the grooves 22 receiving the lugs 28 whilev the boss I4 extends into the aperture of the lower guard 9. The end 4 of the stem I9 is then passed through the aperture in the guard 9 for co-operation with the threads I3 of guard 8 to secure the guard 8 on said stem I0. Handle 5 is then rotated in a clockwise direction relative to the ,stem I8 to jam against the guard 9 and thereby clamp the blade I8 between the guards 8 and 9 with the parts as suggested in the drawing. Lugs 24 engage the D notched corners of the blade I8 as is apparent and the blade in its fully clamped position being flexed, whereupon the razor is ready for use.

After use, and for cleaning the razor, the handle 5 is reversely rotated for loosening the guard 9. The razor may be rinsed by placing it under a. spigot and running the water thereover, whereupon guard 9 will be caused to rotate relative to the guard 8 and blade I8 with the ribs 23 scraping one face of the blade I8 to thereby loosen and remove any accumulations on the blade. Perpendicular blades or wings 25 are provided beneath the guard 9 for expediting rotation of the guard by the running water.

Thus it Ywill be seen that an effective rinsing and cleansing of the razor and blade Vmay be readily effected without requiringa complete disassembling of the parts.

Obviously the invention is susceptible of embodiment in forms other than that which is illustrated in the accompanying drawing and described herein, and is applicable for uses and purposes other than as detailed, and I therefore con- Sider as my own all such modifications and adaptations and other uses of the form of the device herein described as fairly fall within the scope o-f my invention.

Having thus described my invention, what is Vclaimed and desired to be secured by Letters Patent, is: Y

l. `In a safety razor, an upper guard member, a lower guard member, a handle, a stem adapted to extend through an opening in the lower guard member and having screw threaded engagement at one end with the upper guard member, and screw threaded engagement adjacent a relatively opposite end with said handle whereby said nandle may be axially shifted relative to said stem for securing the lower guard member in clamped or released position on said stem between said handle and said upper guard member, inter-engaging means on said stem and handle to prevent complete disengagement of the handle from said stem when the handle is moved in one direction to release said lower guard member, said upper guard member provided-on the under side thereof with longitudinally extending ribs and depending lugs at the ends of said ribs, said lower guardrmember being provided withV longitudinally extending grooves for receiving said ribs and with arcuate transverse grooves for receiving said lugs, `the sides of said longitudinal grooves projecting above the plane of the upper face of said lower guard member for wiping engagement with a blade when the latter is loose between said guard members upon rotation of the lower guard member relative to the upper guard member.

2. A safety razor comprising an outer guard member or cap with an elongated stem, an inner guard member movable on the stem, a tubular handle telescoping the stem, said stem and Said handle having threaded engagement whereby the guard members may be drawn together, and means for limiting the relative longitudinal movement of the handle and stem when they are threadedly disengaged, said means permitting the free rotation of the stem within the handle, the adjacent faces of the two guard members respectively provided with complementa] male and Tamale connections which are in registration when the guard members are alined and draWTl together, the female member provided with arcuate grooves for permitting independent complete rotation of both members when the members are slightly separated.

3. Organization as described in claim 2, in which the stem is removably connected to the outer guard member or cap.

4. In a safety razor, the combination with an outer guardv member having a stem, and a han- 5 dle threadedly connected to the stem, the nether surface of said guard member having projections,

of an inner guard member upon the stem and movable with relation thereto, said inner guard member having indentations for receiving said 1o projections when the two members are alined and clamped together, and also having arcuate grooves for accommodating the projections and permitting relative independent complete rotative' movement of said members when they are slightly l5 separated.

5. Organization as described in claim 2, and wings carried by one of the guard members for expediting its rotation when the razor is held under a'stream of runnning water. V20

6. Organization as described in claim V4l, and wings carried by one of the guard members for expediting its rotation when the razor is held under a stream of running water. 2r

HORACE E. RAMSAY.

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