US1885082A - Safety-razor blade-sharpener - Google Patents

Description

Oct. 25, 1932. co 1,885,082

SAFETY RAZOR BLADE SHARPENER Filed Nov. 5. 1927 avwwntoz:

Patented Oct. 25, 1932 snrnmv-mizoa iamhnshim mna Application filed November Serial Nof 23 1,5203. i

This invention relates to safety-razor blade sharpeners, and is particularly adapted to sharpen blades of the well-known Gillette ty e.

" The main object of the invention is to provide a device of this character consisting of a blade-holder, a sharpening roller, and means for carrying said roller and simultaneously co-operating with the blade-holder for firmly holding the .edge of the blade at the proper angle against the sharpening-roller, thus preventing flexure of the blade and insuring a keen edge after a brief operation of the device.

Another object of the invention is to produce a safety-razorblade-sharpening apparatus, embodying practically three members, simple in construction, efiective in practical daily use, inexpensive to manufacture, and lending itself especially to quantity production.

' The foregoing and other objects of the invention will be hereinafter described and claimed. 7

One embodiment of the invention is shown I the accompanying drawing, forming a part of this application, and in which Figure 1 is a top plan view; Fig. 2 is a side elevation thereof; Fig. 3 is a longitudinal section on the line 3-8 of Fig. 1; Fig- 4: is a fragmen- 1T39 tary side elevation of one end of the sharpening device and illustrates the manner in which the sharpening roller may be removed when worn out and a new roller substituted; Fig. 5 is a top plan view of a modified form of blade-holder; and Fig. 6 is a sectional view thereof on the line 66 of Fig. 5.

Similar characters designate like parts in all the figures of the drawing. Y

In the embodiment of my invention shown in Figs. l'to 4, inclusive, the device consists practically of three members, viz, a bladeholder 2, a sharpening-roller 3, and a rollerholder 4. The blade-holder and the rollerholder may be stamped out of sheet metal or any other suitable material. I The rollerholder 4 has two arms 5 and 6, one of which has a small hole for the shaft 7 of the roller,

and the other a slot 8 for receiving the other end of the shaft of the roller, when the latter is sprung into position. The blade-holder ribbonor, anycovering. Whenthebl'adeto E be sharpened has been placed in proper pothe inner point 18 of: the slot or opening 10 2 is provided with a plurality of prongs for holding'the blade, andthe said holder is also providedwith an elongated opening 10,

. theouter side of which forms the controlling straight edge ruler 10, and which holdsjthe .55 blade at its very edge at the proper angle against roller 3 afterbeing inserted into the opening 10. The blade-holder is pivoted at 11'll;to the'roller-holder and is also provided with'a fiat spring 12 which bears upkW wardly; againstthe under side of the roller.- holder to hold it apart from .the' roller to allow space for inserting the edge of the blade in the opening 10. The sharpeningroller 3 is 'providedwith a very thin'tape 5 or ribbon 13, impregnated with a hardening abrasive paste tofprevent de'formation of the tapew-hilethe edge of the blade rests upon the roller underpressure during thefoperation of the. device. 'Any other'suitable' covering 'in' -any other form may beiused on the roller as the sharpenin stropping or abrafsive means, or'the r01 er may be made of any suitable materialwithout the tape or sitionforthat purpose (see Fig..1 the blade- .holder and the roller-holder are firmly compressed by the fingers of one hand of the user and the roller3 rotated by the handle 14 by the other-hand of the user, the edge of the bladeduring the operation being held at, the proper: angle against the sharpeningroller by a sort of leverage action by which andthe stropping surface of therolljer'S form the pressure-points in onedirectionand the edge/10" the? ressure point in the/opposite direction; "T e portion 19 bears'downward against 'the ed eyof the blade, 'thus preventing fiex'ure ,o the blade and insuring a keen edge after a few turns of the sharpeningroll er. .When the covering 13 0f the roller becomes worn, shouldthe" roller have a cov- "ering, the roller may be removed ,by first lifting the end from the slot 8 in the arm 6 and withdrawing the shaft 7 from the hole in arm 5 ofthe roller-holder, whereupon a new roller may be substituted and sprung into proper position. m0

In Figs. 5 and 6, there is shown a modified form of blade-holder adapted to sharpen blades used With the Gem safety razor. In this instance, the reinforced back (not numbered) of this type of blade abuts at the rear edge against the rear stop 15, struck up from the, sheet metal and is held against forward movement against the prongs 16, 16 struck up from the metal by engagement with the front edge of the reinforced back, as more clearly shown in Figure 6. The edge of the blade to be sharpened protrudes through the elongated slot or opening17, which is brought into stropping or sharpening position by the edge 10 adjacent the cutting edge of theiblade.

It is, of course, understood that various changes may be made in the general design of my device without departing from the spirit of the invention or the scope of the appended claims.

'I claim:

1. A blade sharpening device for safety razor blades or the like comprising two sections formed of metal stampings pivotally mounted at intermediate points, one stamping being formed withside arms formed with bearing portions for mounting'a stropping and sharpening roller and bearing portions for the pivotal mounting means, the other stamping having sidewardly extended tongues forming pivots engaging the pivotal bearing portions of said first stamping, said second stamping being extended beyond the pivot cooperating with said first section to form finger compressing members whereby said roller and blade holder may be drawn towards each other and urge the blade edge ,into proper sharpening position against said roller.

'2. A blade sharpening device for safety razor blades or the like comprising two sec tions formed of metal stampings pivotally mounted at intermediate points, one stamping being formed with side arms formed with bearing portions for mounting a stropping and sharpeningroller and bearing portions forthe pivotal mounting means, the other stamping having sidewardly extended tongues forming pivots engaging the pivotal bearing portions of said first stamping, said second stamping being extended beyond the pivot cooperating with said first section to form finger compressing members whereby said roller and blade holder may be drawn towards each other and urge the blade edge into proper sharpening position against said pivotal means intermediate the length there'- of, blade holding and sharpening roller mounting means formed on the ends of each of said sections respectively, the opposite ends of said sections being formed with finger In testimony whereof, I affix my signature.

ADOLPH COHN.

roller, and a tongue stamped from said sec- 0nd stamping in the portion extended, said tongue being displaced to provide means for resiliently' spacing said sections fromeach other.

3. A blade sharpening device for safety razor blades or the like comprising two relatively disposed, pivotal sections including I

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