US2141086A

US2141086A - Safety razor

Info

Publication number: US2141086A
Application number: US43821A
Authority: US
Inventors: John H Hotson
Original assignee: Individual
Current assignee: Individual
Priority date: 1935-10-07
Filing date: 1935-10-07
Publication date: 1938-12-20
Anticipated expiration: 1955-12-20

Description

. Dei? 20, 193@ J. H. HoTsoN I 2,141,086

SAFETY RAZOR Filed od. v, 1935 z'sheetS-shet 1 INVENTOR.

\ TJM. H. l

ATTORNEY.

J. H. HOTSON SAFETY RAZOR Filed Oct. 7, 1935 2 Sheets-Sheet 2 Y INVENTOR.

ATTORNEY.

Patented Dec. 20, 1938 UNITED STATES PATENT FFICE 18 Claims.

The invention relates to razors, and more particularly to that type commonly known as safety razors.

The principal object of the invention is to provide simple,. efficient and economical means whereby shaving application of either the soap or cold cream type, which accumulates on the razor, may be replaced on the face for reuse. Further objects and advantages of the invention will be in part set forth in the following specification, and in part will be obvious therefrom without being specifically pointed out, the same being realized and attained as hereinafter more fully described or asv pointed out in the claims hereof.

With the above and other objects of the invention in view, the invention consists in the novel construction, arrangement and combination of various devices, elements and parts, as set forth in the claims hereof, certain embodiments of the same being illustrated in the accompanying drawings and described in this specification.

In the accompanying drawings,

Fig. 1 is an end view, partly in section, of an embodiment of the invention employing, hinged pushers operated by a sliding sleeve mounted on the handle;

Figs. 2 and 3 are side andplan'views respectively of the cap shown in Fig'. 1;

Fig. 4 is a side viewl of the central handle rod shown in Fig. 1;

Fig. 5 is an end; view of the sleeve andv guard shown in Fig. 1; n

Fig. 6 is a view of the sliding sleeve shown in Fig. l, and viewed from the same direction;

Fig. '7 is another View of the same, as it would be seen from the side of the razor;

Fig. 8 is a plan view of Fig. 5;

Fig. 9 is a sideview of the helical spring operating between the two sleeves;

Fig. 10 is a detached view of one of the pushers, the same being viewed from the side toward the handle;

Fig. 11 is a view of the same from the side away from the handle; I

Fig. 12 is a cross section'of one of the pushers;

Fig. 13 shows a hinge pin for attachingr a pusher to a guard;

Fig. 14 is an end view of another embodiment ofthe invention, in which a rigid pusher is operatedby a lever pivoted on the handle;

Fig;-15 is a side view of the embodiment shown in Fig. 14;,

Fig. 16 is an end view of another embodiment of the invention, in which a hinged pusher is operated by a pivoted lever on thehandle;

Fig. 17 is a side view, partly in section, of the form shown in Fig. 16;

Fig. 18 is a detail view showing the manner .in which the pusher is hinged. to the bottom of the sleeve which forms part of the handle shown in .5 Figs. 16 and 17;

Fig. 19 is a detached view of the pusher shown in Figs. 16 and 17;

Fig. 20 is a cross section of the same;

Fig. 21 is an end view of. another embodiment A1.0`

of the invention, in which a rigid pusher is operated by a resilient lever; and

Fig. 22 is a detached view of the pusher and lever shown in Fig. 21.

In carrying my inventionl into effect in the f15 embodiment thereof which is illustrated in Figs. 1 to 13 inclusive, and which is regarded asI the preferred form, it will be seen that there is provided a cap 3B (see Figs. l, 2 and 3), provided with the usual guide lugs 3|, and with a threaded shank 32 of sufficient height easily to engage a threaded socket 33 in the lower end of the rod 34.

This rod 34, shown separately in Fig. 4, forms the innermost member of the compound handle, and besides having the threaded socket 33, it is provided at its lower end with an annular groove 35` and at its upper end with a knob 36 lhaving

shoulders

31 and 38.

Referring now to Figs. 5 and 8, I provide a guard 39 having the usual teeth 4D, and being also provided on its upper side with hinge knuckles 4l. Permanently attached to the guard 39 is a fixed sleeve 42 .which forms the intermediate member of the compound handle. 'Ihe rod 34 is rotatably mounted inside the sleeve 42, with -35 the shoulder 3l bearing against the upper end 43 of. said sleeve 42, and is secured' in this position by a pin or screw 44 inserted through a perforation 29 in the sleeve 42 and engaging the groove 35. The rod 34 and sleeve 42 are thereby permanently assembled with relation to each other longitudinally, while the rod 34 may be rotated within the sleeve 42' in order to` remove or replace the cap 30. A blade `45, shown in Fig. 1, is removably clamped between the cap 30 andv guard 39. The fixed sleeve 42"V is also provided with a shoulder 46, and with longitudinal@ slots 4T open at the end 43 and extending downwardly therefrom.

Referring now to Figs. 6 and?, Iy provide a. sliding sleeve 48, which forms the outermost member of the compound handle. This sleeve 48 is provided with inwardly projecting lugs 49, which may easily be formed by cutting out and kbending inward portions of the metal from which the sleeve is formed. These lugs 49 are adapted to engage with the slots 47 of the sleeve 42. The sleeve 48 is thereby adapted to be slidably mounted outside of the sleeve 42, but held against rotatng with reference thereto. The sleeve 4B is permanently assembled with the other parts of the handle, and its sliding movement is limited upwardly by the shoulder 38 on the knob 35, which shoulder engages the upper end 59 of the sliding sleeve 48, as shown in Fig. 1. The lower ends of the sliding sleeve 48 are provided with downwardly extending projections 5|, each provided at its lower end with a slot 52.

A helical spring 64 is provided, shown separately in Fig. 9 and in its operative position in Fig. 1. This spring lies. outside of the sleeve 42, within the space above the shoulder 48, and inside the sleeve 48. This spring 84 operates eX- pansively downward against the shoulder 46 and upward against the lugs 49, thereby tending to hold the parts in the position shown in Fig. l. IIhe upper end of the spring 64 is closed against itself to avoid the possibility, should the spring rotate on its axis, that the lugs 49 might become entangled with the coils.

Referring now to Figs. .10, 1l and 12, I provide hinged pushers 53 each having open knuckles 54, closed knuckles 55, and recesses 53 adapted to clear the knuckles 4| Von the,y guard 39. Pins 57, one of which is shown separately in Fig. 13, pass through the knuckles 4|, 54 and 55, and the pushers 53 are thereby pivotally mounted on the guard 39. One end of each pin 57 is bent as shown at 58, and when the device is assembled this bent end is snapped into a perforation 59 in one of the open knuckles and the pin is thereby prevented from slipping. The open knuckles 54 serve toi protect the ends of the pins, while leaving them accessible whenever the removal of the pins become necessary in order to disass-emble the device.

Each pusher 53 is provided with a link 89', the position of which when the devicev is assembled is shown in Fig. l. In assembling the device the free end 6| of this link, which bears resiliently against the pusher 53, is snapped through one of the slots 52 provided at the bottom of the sliding sleeve 48. By this means the pushers are operatively connected with the sliding sleeve 48, and ordinarily are held in the position shown in Fig. 1 by the action of the spring 64. VWhen, however, the sleeve 48 is pushed downward, the pushers will swing into a position parallel with and close to the upper surface of the guard 39, and any accumulation of shaving application between the pushers and the top of the guard will be forced out.

The portion 62 adjacent the free edge of each pusher 53 is bent in the manner shown particularly in Figs.. 1 and 12, in order that when the pushers are operated those portions of the same which project beyond the edge of the guard 39 will not scrape against the face. Each of the pushers 53 is also provided with a row of projections 83 adapted when the pusher is operated to enter the spaces between the teeth 49 of the guard 39 and clear the same of shaving application, which is particularly desirableV when application of the cold cream type is employed, 'since this type is generally applied sparingly to the face.

In the operation of this embodiment of my invention, the shaving strokes are performed in the ordinary way, the handle being held lightly so that the spring 64 may operate to hold the pushers 53 away from the guard. Under these conditions the device will operate in a manner similar to any other safety razor; with the advantage, however, that owing to the longitudinal resiliency between the sleeve 48,.which is the part directly held in the hand, and the cutting portion, this cutting portion upon encountering any protuberance on the face will be more likely to slid-e over the same instead of cutting into it.

Between each shaving stroke the razor is slid backward over the face, the sleeve at the same time being pressed downward against the spring E4. The result of this is to force out the shaving application which has accumulated between the guard 39 and pusher 53, as well as between the teeth 40 of the guard 39; and to spread this shaving application over the face in such a manner that it may be used again with the next shaving stroke.

This embodiment of my invention is so constructed that in learning to use the same, no change of habit is required in performing the delicate part of the operation, the shaving stroke itself, and this if anything is made slightly easier; while the operation required on the return stroke stroke of the razor has been so arranged as to be performed in a simple, natural and easy manner. The permanent assembly of the pushers and compound handle leaves the operations required in removing or inserting a blade no more diicult than in any other razor, time thus being conserved and confusion avoided. It is possible, however, when required for the purpose of repairs, replacements or an occasional tho-rough cleaning, to disassemble the device completely by removing the pin or screw 44 and the hinge pins 51, and by snapping the links 68 out of the slots 52.

Referring now to the embodiment shown in Figs. 14 and 15; in order that the description of this embodiment may be more easily understood, allV parts which are analogous either in structure or function to corresponding parts shown in Figs. 1 to 13 inclusive, have been indicated by corresponding numerals to which the number 5D has been added in each case.

As shown in Figs. 14 and'15 I provide a cap 8U, having guide lugs 8| and a threaded shank 82; a rod 84 having a threaded socket 83 adapted to engage the threads of the shank 82, and also having a knob 86 with a shoulder 81; a blade 95; and a guard and sleeve assembly comprising a guard 89 with teeth 9-0, anda sleeve 92V the upper end 93 of which will bear againstrthe shoulder 81 when the razor is assembled. I also provide a bent lever 98, pivoted to the sleeve 92 at, 5; and a flat spring ||4 between the upper end of the lever 98 and the sleeve 92. The pusher |03 in this embodiment is not hinged, but rigidly mounted on the lower end of the lever 98, The spring H4 ordinarily holds the lever 98 and pusher |03 in the position shown by thefull lines in Fig. 14, but when the top of the lever 98 is pinched against the sleeve 92 the parts will assume the position shown by the dotted lines in said Fig. 14.

Referring now to the embodiment shown in Figs. 16 to 20 inclusive; all the parts which are analogous either in structure or function to corresponding parts shown in Figs;Y 1 to 13 inclusive, have been indicated by corresponding numerals to which the number |09 has been added in each case.

tions |63 adapted when the pusher is operated to -clearthe'interstices between the teeth |49 lof "the guard |39.

-The pusher is operatedA by a lever |4,8,'pivoted `to the-sleeve |42 at |65, and ordinarily held in Aits inoperative position by a spring |64 operating `ubetween'said sleeve |42 and lever |48. The lower cFigs. 21 and 22; all the parts which are analogous either inA structure or function to rcorresponding parts shown in Figs. 1 to 13 inclusive, have been designated by corresponding numerals to which the number |50 has been added in each case.

In said Figs. 21 and 22 I have selected for the Apurpose of illustrating the construction and oper-- ation of this'embodiment a safety raz-or employing a blade of the single edged type. This razor is provided with a capflll, a blade |95, and a `-guard |89 having a sleeve |92v integral therewith.

The cap |80 is not entirely removable, but pivoted at 2I8 to the guard and sleeve assembly, and

' operated vin anysuitable or conventional manner by a rod |84 rotatably secured within the sleeve 192. This rod |84 is provided with a knob |85.

` Riveted to the sleeve l|92 at 2|9 is a resilient leverjl98, having its lower portion 2H bent approximately at right angles to the sleeve |92 and bifurcate'd in order to straddle the same, and provided at its freeV end with a pusher 293. The pusher, fork and lever assembly may be integral, and is,shown,.separately from any razor in Fig. 22. This assembly when at rest occupies the position shown by the dotted lines in Fig. 21, but when the lever |98 and sleeve |92 are pinched together, the parts will assume the position shown by the full lines in Fig. 21. Since the pusher 203 lies on the opposite side of the sleeve |92 from the lever |98, when the lever |93 is pressed toward the sleeve |92, the pusher 203 is moved away from it.

In each of the three embodiments shown respectively in Figs. 14 and 15, Figs. 16 to 20 inclusive, and Figs. 21 and 22, the method of using the razor is the same. The shaving strokes are performed in the usual way, while on the backward lstrokes of the razor the lever 98, |48 or |98 is pinched against the handle. The manner in which each of these embodiments respectively performs its function will now be obvious from what has been above set forth regarding their construction, and regarding the construction and mode of operation of the embodiment shown in Figs. 1 to 13 inclusive.

By employing my invention in any of its embodiments, the user will be enabled to shave himself more rapidly thanwouldmotherwiseebeafthe case, since after making the initial application :of

i shaving preparation, subsequent applications :may

be madeby` utilizing time `and :motionstwhich would .otherwise be wasted. He may also shaver,y

himself more economically, `since'h'ewill be enabled to reutilize shaving applicationlwhichiis Yordinarilythrown away; and hemayalso shave Y himself with greater comfort, since theiiace will be continuously supplied throughout the lentire operation with. an adequate' amount of shaving preparation, kand need not become dry between successive applicationsfby brushor. fingers.

Other advantages of the` invention will be lobvi- Vous from whathas :beenabove set forthtwith.;

regard to its construction and operation.

I do not limit .myself tothe particular details of construction set forth in. thelforegoingspecication yand illustrated in the accompanyingl drawings, as thev same refer to andset forth'onlyi-'icertain embodimentsv of theinvention. It is obvious, for instance, that any of the embodiments illustrated and-described'may be adapted for -use ,with either of the types of razor illustrated,4 or

with any other form of razor; and that in 1 theirsA case of any razor having a doublefedged blade, the use of either a-single or double pusher in connection with any embodiment-of myinvention is optional; and that other modifications may be' made, within the scope of the appended.:

maybe removed from between said guard andi pusher.

2. A safety razor holder comprising aguard, a

' handle, and a pusher pivoted adjacent the junction of said guard and handle, and adapted to move accumulated shaving application-fromthe.;-

3. A safety razor comprising a guard, a blade; a handle, and a pusher pivoted `adjacent the. junction of said guard and handle,.and'adaptedto move accumulatedy shaving application fromthe guard, the free edge of said pusher beingbentso as to form an angle. with the main portion of said pusher.

4. A safety razor comprising a guard having teeth, a blade, a handle, and a pusher pivoted adjacent the junction of said guard and handle, said pusher being provided with projections adapted to. enter the interstices between the teeth of said guard and to push shaving application out of said interstices.

5. A safety razor holder comprising a guard, a handle, a pusher pivoted adjacent the junction of said guard and handle, and adapted to move accumulated shaving application from the guard, and a spring adapted to hold said pusher in an inoperative position.

6. A safety razor holder comprising a guard, a handle, a pusher, means operatively connecting said pusher with said handle, and a spring operating against said handle and said connecting means adapted to hold said pusher in an inoperative position.

7. A safety razor comprising a guard having teeth, a blade, a handle bearing a sleeve; a pusher pivoted adjacent the junction of said guard and Sleeve and operatively connected with said sleeve, said pusher being provided with projections adapted to enter theV interstices between the teeth of said guard and to push shaving application out of said interstices; and a spring adapted to hold said pusher in an inoperative position.

8. A safety razor comprising a guard, a blade, a handle, a hinged pusher adapted to move accumulated shaving application from the guard, and a sleeve slidably mounted on said handle and operatively connected with said pusher.

9. A safety razor comprising a guard, a blade, a handle, a hinged pusher, a sleeve slidably mounted on said handle and operatively connected with said pusher, and a spring adapted to operate between said handle and sleeve and thereby hold said pusher in an inoperative position.

10. A safety razor comprising a guard, a blade, a sleeve mounted on said guard, a hinged pusher, a rod within said sleeve providedwith means adapted to hold said guard and blade in operative relation, anda second sleeve slidably mounted on said rst named sleeve and 'operatively connected with said pusher. Y

11. A safety razor comprising a guard, a blade, a sleeve mounted on said guard, a hinged pusher, a rod within said sleeve and provided with means adapted to hold said guard and blade in opera tive relation, a second sleeve slidably mounted on said rst named sleeve and operativelyrconnected with said pusher, and a spring adapted to operate between said sleeves and thereby hold said pusher in an inoperative position.

12. A safety razor comprising a guard, a blade, a sleeve mounted on said guard, a hinged pusher, a rod within said sleeve provided with means adapted to hold said guard and blade in operative relation, means adapted to permit said rod to rotate within said sleeve but to limit the longitudinal movement of said rod within said sleeve, and a second sleeve slidably mounted on said rst named sleeve and operatively connected with said pusher.

13. A safety razor comprising a guard, a blade, a sleeve mounted on said guard, said sleeve being provided with an annular shoulder and with a longitudinal slot, a second sleeve slidably mounted on said rst named sleeve and provided with an inwardly projecting lug adapted .to enter said slot, a helical spring between said sleeves,

and a hinged pusher operatively connected with said second named sleeve.

14. A safety razor comprising a guard, ablade, a sleeve mounted on said guard, said sleeve being provided with an annular shoulder` and with a longitudinal slot, a second sleeve slidably,

mounted on said rst named sleeve and provided with an inwardly projecting lug adapted to enter said slot, a helical spring between said sleeves, the ends Vof said spring bearing against said shoulder and'said lug, a rod Within said rst named sleeve provided with means adapted to hold said guard and blade in operative relation, means adapted to permit said rod to rotate within said first named sleeve but to limit the longitudinal movement of said rod within said sleeve, and a hinged pusher operatively connected with said second named sleeve.

15. A safety razor comprising a guard, a blade, a handle, a pusher pivoted adjacent the junction of said guard and handle, and a lever pivoted on said handle and adapted to operate said pusher.

16. A safety razor comprising a guard, a blade, a handle, a pusher, a lever pivoted on said handle and adapted tol operate said pusher, and a spring operating against said lever and said handle and adapted to hold said pusher in an inoperative position.

17. A safety razor holder comprising a guard having teeth, a handle, a pusher pivoted adjacent the junction of said guard and handle and pro- Yvided with projections adapted to enter the interstices between the teeth of said guard and to push shaving application out of said interstices, and a leversecured to said handle and adapted to operate said pusher.

18.A safety razor holder comprising a guard having teeth, a handle, a pusher provided with projections adapted to enter the interstices between the teeth of said guard and to push shaving application out of said interstices, means op eratively connecting said pusher with said handle, and a springV operating against said handle and said connecting means, saidspring being adapted to hold said pusher in an inoperative position.

JOHN H. HOTSON.