US1503471A - Safety-razor-blade stropper - Google Patents

Description

SAFETY RAzon BLADE sTnoPPan BREcK Filed Avril 24 I, H Y n l @mW/Wm Patented Aug. 5, i924.

Y WILLIAM ivI. Banen, OFGLEVELAND, oHIo. j

SAFETY-RAZOR-BLADE STROPPER.

Application filed April 24, 1922. Serial No. 556,238.

To all whom t may concern.'

Be it known thatI I, WILLIAM M. BRJICK, a citizen of the United States of America, residing at Cleveland, in the county of Guyahoga and State of Ohio, have invented ycertain new and useful Improvements in Safety- RaZor-Blade Stroppers, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to razor stropping devices and more particularly to devices for stropping safety razors. l

One of the objects of the invention is to adapt the stropping device for a safety razor .blade to be mounted fast upon the razor which is adapted to receive said blade, the handle of the razor thus serving as a handle to the stropping device in use of the latter. The invention further consists in a novel mechanism for rocking a pivotal blade. holder, so as to alternately present the popposed cutting edges thereof to a razor or the like according as the stropping device is alternated in its direction of movement, relative to the strop.

In the drawings :l-

Figure l is a perspective view of the improved stropping device;

Figure 2 is a similar view of the same mounted for use upon a Vsafety razor;

Figure 3 is a sectional view of the device secured to a razor;

Figure 4 is a cross section on lines 4 4 of Figure 3; j

Figure 5 is a perspective view of the main member of the blade holder;

Figure 6 is a perspective view of an end portion of a complementary element of said Figure 7 is a perspective view of a blade engaging in said holder. y

In these views the reference character 'A designates a frame comprising a pair of end plates A and a pair of barsB rigidly vconnecting said plates and preferably integral therewith. C andv D are. a pair of plates forming the holder for a razor blade, such as is shown at E, said blade being clamped between said plates. The plate D has end members F and G respectively provided with aligned trunnions H, journaled in the plates A. Said plate D is furthermore formed with a pair of bosses I adapted to snugly engage the openings J formed in the razor blade E and said bosses may project somewhat beyond the blade E to engage in aperturesK in the plate C'. The latter vis held in proper proximity to the companion plate D by the engagement of lugs IJ formedY upon the ends of the plate C with slots M in the members F and Gr. A leaf spring N secured to the under face of the plate C is adapted to'stresssaid plate to prevent its accidental shifting. O is a supporting element for the frame A and comprises a sheet metal plate slightly curved in cross section and having up-turned ends O terminally formed with lugs O2, which are oppositely bent to engage in slots O3, two of which are formed in each end plate A. sufficiently exceeds that of the lugs O2 to provide for a limited relative reciprocation of the supporting member O and frame A. Each of the end pieces F and G ofthe blade holder is formed with a 'circular tongue P, said tongues iitting into correspondingly shaped sockets respectively formed inthe ends O of the supporting plate O. Thus it is evident that relative reciprocation of the plate O and frame A will ef'fectrocking of the blade holder.

.R isV the handle of a well known type of safety razor, said handle being rigidly se-v cured to a clamping plate S, acompanion clamping plate S carrying a threaded stem T, which is adapted to project into the handle R and is engageable by a tubular stem U, having a head V terminally seating upon the handle R. Thus rotation of the head V will draw the stem T into the stem U and draw the plate S into clamping relation with the plate S. Said plates, which are slightly arcuate in cross section, are normally adapted to clamp a razor blade, the plate S carrying a pair of pins W, which may be engaged with apertures J of the clamped blade and which project to also en- The4 length ofthe slots O3 Y gage suitable openings X formed in the plate S. n

The invention adapts the described razor to be employed as a mounting for the described stroppingdevice by giving the plate O a curvature to that of the razorrplates S and S and by forming said plate O with three slots Y extending from one side of said plate to the center portion thereof. Said Vslots, as is clearly shownin Figure 3, are

adapted'to accommodatey the pins W and stem T, thus adapting thek plates S and S to engage-in a clamping relation above and below the member U. lWhen such relation is established, the head is` turned to draw said clamping plates into iirm engagement with the member O and the stropping deviceis then ready for use.

In the use of said device the operator manipulates the same by means of the handle R and the manipulation consists in shifting the device back and forth along a strop, such as is indicated in dash lines in Figure t at Z. Owing to the frictional pressure of the bars B against the strop there occurs a slight relative reciprocation of the frame- A and supporting member (i, upon each change of direction in the movement of the device along the strop. The eiiect of this reciprocation, due to the engagement of the tongue P in the end sockets ot the member O is to rock the blade holder at each end of the stroke of the device, so that the advance edge of the razor blade is always slightly raised from the strop while the rear edge ot the blade bears against the strop to be sharpened by contact therewith.

By utilizing the safety razor from which a blade has been removed as a mounting for the device in which said blade is to be sharpened, the cost of the device is considerably reduced, as compared to devices requiring special handles. Furthermore the described use ot a relatively reciprocatory frame and supporting member for the device, the latter being engaged with a blade holder pivoted upon said frame, very positively eii'ects the necessary rocking of the blade holder at each limit of the stropping stroke, so that the danger ot cutting the strop is minimized.

lVliat l claim as my invention is l. The combination with a razor blade holder, comprising a handle and clamping means for a blade carried by said handle, of

a stropping device for said blade detachably en ageable by said clamping means e combination with a razor blade holder, comprising a handle and a pair of blade clamping plates transversely mounted terminally upon said handle., of a stropping device having a portion adapted to i'it between said plates.

3. A stropping device having a supporting portion engageable between the blade clamping plates of a safety razor.

i. A stropping device having a supportii'ig portion slotted to adapt it for engagement between the blade clamping plates of a razor. i

The combination with arazor blade holder, comprising a handle and a pair of clamping plates carried by said handle, one of said plates having blade positioning pins projecting toward the other, oi a stropping device having a supporting plate slotted to accommodate said pins and to permit said supporting portion to be clamped between said blade engaging plates oi' a razor.

(i. In a stropping device, the combination with a supporting member, of a blade holder including a plate having substantially parallel end portions pivoted on said supporting member, said end portions having recesses therein, and a cooperating clamping plate having relatively short lugs engageable with the recesses in one ot said end portions and having relatively long lugs engageable with the recesses in the other end portion of said plate, the last-mentioned lugs being of sufficient length to maintain engagement with their respective recesses while the other lugs are inserted or removed from their respective recesses.

In testimony whereof I atli); my signature.

VILLIAM M. BRECK.

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