US1653271A - Razor-blade stopper - Google Patents

Description

Dec. 2o, 1927. l 1,653,271

W. J. GOSLING anon BLADE sTRoPPER Filed Nov. 16. 192s INVENTUR wlu/,mJGosL/'NG BYCMQMM [AX/( ATTRV' lil liateuted Een. 20, 1927.

UN-iTEosTAT-ES PATENT .oFF-ice.

WILLIAM J. eoeLiNe, or MONTREAL. QUEBEC, CANADA, `Assiexiion 'ro JAMES ConronA'iioizi minimi); or'iyion'rnnAL, CANADA.

RAZOR-BLADE sfrnorrnn.

Application filed November 15, 11923,` Serial No. 675,238. v

This invention relates to new andy useful improvements in stroppiiip;A devices for safety razor blades andparticularly blades of the doubleedpged, type 'in which Aeither edgev may be used for shaving.

The object of theinveiition is toprovide a stifoppingy device which will require no ad-A justment. andr which` e will automatically sharpen both edges ot the blade evenly. y

Another object isto provide a stropper for safety razor blades which will haveN no protrudingfbeyond the obstructions orf parts sides of the frame. e

A iirtheriob'eCt is to provide a stropper for safety razor blades which will hold the bladein one position with regard to its cene "'f holder of two-part construction, one part being pivotally mounted in thev frame and having embossed centering. devices adapted to engage with. the usual holes formed in the standard typesof razor blades. vThe other part of the holder is hinged in such a manner as to allow full 'opening of hinged portion without fouling or interferingwith any part of the frame. e Rollers mountedon pins are provided between the frames to act r as an easy positioning: medium for -the strop.

To one of the rollers is securely attached an arm, having a slot cut therein adaptedI to engage with a protrudingl lug foimed inthe oscillatably mounted portion of thejholdein The blades is locked in position by means of a. sliding stud mounted on one of the embossed centeringr devices. Y l

In the drawings which illust-rate the invention;-

Fig. 1 is a. side elevation of the stropping device.

. Fig. 2 is an end view of Figure l.

Fig. 3 is a sectional plan of the'device taken on the line lie-3, Figure 1, showing the blade holder in cross section.

Fig'. et is a sect-ionalplan ofthe frame taken on the line 4wd.. Figure 1.

Fig.- 5 is a sectional view of the frame taken :fifi-' the iine dell Figure 4t.

d Fig,y 6 is a plan' view of the strip out et which theframe is made. y i

Referring more particularly to the dra-wings, 11 designates a one-piece frame comprising two parallel sides 1Q `and 13 connected by means of a U-sliaped portion 14 of hollow circular cross section, shown in Figure 5?` and formed by rollingfpart of theI frame y11K at the centre during theprocess of manufacture; The frame S Ormed from a strip of kmetal 1,5 shown in Figure @the pla-rty used for the frame being;r shown'in chain dotted lines anddesigiiated 16??.l The frame7 beingof one-piece construction, en#` sures a strong, durable. device' which willA retain its shape,ftherebeingno part "to work- To hold the sides Vin parallel relation` la rivet 16 is passed through the trameat the upper eden-is and two rivets 1.7 are passed throughvthe traine at the lower edge, one1 on. each side of the centre line. Mounted on rivets aretlie rollerslS, which are adapted to guide and assist iny the free movement of the `flexible leather or composite strop 19,"k

which is placed around the top of the upper roller and incontact with. the inner surface of the lower7 rollers, thatis, the surface face ing the 'centre' of ,the frame. Oseillatably mounted in the frame is the razor holder whichis in twopfirts7 one part 2O beingr rprovided with projectingr pivots Qlywhich rotatein Lbea-rings 22a ,formed in the parallel. members of the frame and to one side of the centre thereof. The part 20 is also provided witheinbossed circular portions 22 project(- ing outwardly from one face of the holder. said projections being' positioned so that they will engage with the holes 23 formed in the yblade 24,'which is ofstandard construction lockingr member 28, which is mounted on one of the embossed circular projections 22, a slot 29 beingprovided therein to allow free movement for the locking member. The hinged portion?? is attached. to the part 20 at one side thereof7 the hinge 30 being sor formed that the attaching portions or lugs 32 pass through slots 33 cut in the edge of the' part 20. `The lugs or attaching portions turned from' the' inner tace le of the Yfouling or interfering` with the frame.

' are curved towards the centre of the holder,

so that they will not foul the strop during the operation of sharpening' the razor blade. The width of the holder and the hinged member is slightly less than the wid h of the blade. soA that the edge of the blade will project slightly beyond the edge ot the holder. FiXedly mounted on the upper roller in any suitable manner is the holder operating arm 36, which is provided with a slot 37 adapted to engage with a projecting: lug 8S formed integral with the portion 20 ot the holder. The length ot the slot is made such that it will limit the movement of the holder in both directions of rotation. rEhe position of the bearings in the parallel members is such that no `part ot' the portion 2O of the holder needs to heotlset to allow the edges of the blade to have even contact with the strop. Thecentre of the bearings is positioned from the centre of the frame an amount equal to half the thickness ot the blade plus halt' the thickness oit the portion Q0 of the holder. This offsetting of the bearings allows the blade to oscillate as if it were pivoted about f its own centre. Slight modifications may be made in the various parts of the device with out departing from the spirit ot' the invention.

The j operation ot the device is as follows The hinged portion ot the blade holder is turned at right angles to the portion 2O and a blade ris placed in position on the embossed projections which extend through the blade holes. The hinged portion is then turned into engaging position with the face of the blade, holes 39 being; provided in the hinged portion to allow the embossed projections to pass therethrough. The blade is then locked in `position between the hinged portion and theportion 2O by the sliding; catch member mounted on one oit the embossed portions. A thin flexible strop of leather or like material ismounted on the upper roller and threaded through between the bottom rollers, said strop being so positioned that its inner faces are eouidistant trom a` centre line passing througijh the centre of the frame. Attached to the upper roller is the operating arm having;r a slot, the edges of which are adapted to engager with a lug attached to the blade holder. The slot is of such length that itwill limit the movement of the blade during the process of stropping. By pulling the strop first in one direction andthen in the other` the blade holder oscillates on its supporting bearings in the frame through the action of the operating arm. The blade is adapted to project beyond the edges of the holder and comes in Contact with the inner surface of the strop at two points, thus sharpening both edges on opposite sides of the blade in one operation-` By reversing the action of the strop, the unstropped edges come in contact with the strop, thereby sharpening' the blade evenly. The holder is so positioned that .the blade oscillatesabout its centre, thus ensuring an even stropping action.

. -Iaving thus described my invention, what I claim is A holder for safety razor blades comprisingr a pair of plates having' corresponding ends hingedly connected together, a hollow boss projecting from the inner face of 'one plate. and adapted to protrude through an opening formed in the other plate, said boss having a slot formed in the outer end thereof, a member passing throne-h said slot and movable therein longitudinally of said plates, and heads at the4 opposite ends of said member adapted in one position of the member to be positioned within the circumferential `boundary ot the boss, and in another position of the member to be projected laterally beyond the boss so as to overlie the outer surfaces of the plates at one side of the boss to thereby secure the plates against separation.

In witness whereof. I have hereunto se my hand.

` Y WILLIAM J. GosLING.

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