US1451844A

US1451844A - Razor stropper

Info

Publication number: US1451844A
Application number: US541761A
Authority: US
Inventors: John H Payson
Original assignee: Individual
Current assignee: Individual
Priority date: 1922-03-07
Filing date: 1922-03-07
Publication date: 1923-04-17
Anticipated expiration: 1940-04-17

Description

' Apr. 17, 1923. 1,451,844

J. H. PAYSON RAZOR STROPPER Filed March '7, 1922 Patented Apr. 17, 19223.

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W -11 e n w '19 "i. i 1 all a. at i JOHN H. lAYfiON, OF RQCKFDRD, ILLINOIS.

RAZOR SIBOPPEE.

Application filed March '2, 1922. Serial No. M1361.

One of the objects of the present invention is to provide an improved razor stropper of this class in which the blade-holding device is carried by a handle adapted to be moved back and forth. over a strop in an action similating the stropping of an ordinary razor, and in which the position of the blade is reversed at the end of each stroke and pressure of the blade against the strop is proportional to the hand pressure.

Another object is to provide a razor stropper of the character described constructed in a. particularly novel and advantageous manner. More particularly, 1 have aimed to provide a razor stropper having the advantages described, embodying b-ut three main parts, namely, a blade holder, stropguide frame, and a handle, and means operatively associating these parts so that they will function as desired.

Still another object is to provide a novel razor blade stropper constructed of such few parts that it may be produced at a comparatively low cost.

Other objects and attendant advantages will be appreciated by those skilled in this art as the invention becomes better understood by reference to the following descrip tion when considered in connection with the accompanying drawings, in which Figure 1 is a top view of a razor blade stropper embodying my invention;

Fig. 2 is a longitudinal section taken on the line 2-2 of Fig. 1;

Figs. 3 and 1 are cross-sections taken substantially on the lines 33 and 4-4, respectively, of Fig. 1; and

Fi 5 is a detail view of the cam member, escribed later.

My invention, generally stated, compreheads the provision of a blade holding de vice carried by a handle which may be manipulated after the fashion of stropping an ordinary razor, which device is soconstructed and connected with the handle that the blade will be reversed at the end of each stroke, bv a slight turning movement when reversing the stroke. In the present embodiment of my invention, the handle 5 has an axial bore 6 in which is. disposed a rod 7 havf ing an upset end 8 preventing displacement of the handle in one direction and projecting at its oppositeend beyond the handle for the purpose of providing a support for the blade holder and the strop-guide frame. This frame 8 consists of a flat piece of sheet metal bent medially to provide sides 9 and 11 in angular relation. The rod 7 is welded or otherwise fixedly secured to said frame 8 at the inside of the juncture of the sides 9 and 11. The frame 8 may, therefore, befreely oscillated about the longitudinal axis of the handle by reason of the loose mounting of the rod 7 in the handle.

The blade holder proper consists of a pair of sides 12 of duplicate construction. Each side 12 has'a fiat blade-engaging portion 13 and a channel edge 1 1 adapted to embrace a pivot rod 15, which in turn is pivotally mounted at its ends in brackets 16 welded or otherwise secured to the frame 8. ncrews 17 are employed for clamping the blade holder sides 12 to the pivot rod 15. The sides 12 being of resilient material are adapted to clamp a blade interposed between the blade holding portions 13 and it will be seen that these sides may be of any suitable shape to accommodate different razor blades. The form shown is adapted for different makes of blades, particularly Gillette blades, and for this make of blade locating lugs 18 are provided. The blade holder will also accommodate those makes of blades having a channel back, byv reason of the separation of the blade holder sides between the portions 13 and 1 1. To

facilitate the insertion and removal of the blades the rod 15 between the opposed channeled. margins 14 of the holder sides 12 is flattened as will be evident from Fig. 3. l

A quarter turn of the rod from the position shown in this figure will release the tenslon on the blade clamping members, thus freeing the blade. It will be manifest that the blade holder may be freely oscillated about the axis of the rod 15 and that this axis is eccentric with respect to the rod 7.

Connection is now provided between the blade holder and the handle,,wherebysaid holder will be oscillated with respect to the frame 8 at the end of each stroke. To this end, a short pin 19 is secured at one end eccentrically with respect to the rod 7 in the opposite portion 21 of aband: or collar 22 embracing the adjacent end of the handle 5, and said pin 19 is loosely engaged at its opposite end in a socket 23 formed by the sides 12 of the blade holder. As a result of the foregoing construction, the blade holder may be oscillated'with respect to the frame 8 by oscillating the handle This operation is desired for reversing; the blade at each end of the stroke and such reversing action will also rock the frame 8 and present the opposite angular side to the strop for the return stroke.

In practice, referring to Fig. 3 and assu'rning, that the line 24 represents the surface of a strop, the parts are shown in the position assumed when the handle is moved to the left with a torsional pressure in a clockwise direction tending to force the blade against the surface of the strop. This pressure may be varied to suit the conditions and requirements at hand. At the end of the stroke, the handle will be turned in a counter-clockwise direction, thereby swinging the blade holder about its pivot axis 15. This same movement of the handle throws the opposite side 9 of. the

strop guide into contact with the strop,

so that when the stroke is continued in the opposite direction the parts will assume a position opposite to that shown in Fig. 3. The reversal of the blade holder and of the strop guide frame is instantaneous at each end of the stroke and is effected so easily that no additional effort is required, and a free and easy stropping action may be at tained. It will be understood as mentioned above, that the stropping pressure, that is, the pressure of the blade on the strop may be varied in direct proportion to the twist given the handle on any stroke.

It is believedthat the foregoing conveys a clear understanding of the objects prefaced above, and while I have illustrated and described but a single working embodiment,

' it should be understood that changes might be made in details of construction without departing from the spirit and scope of the invention as explained in the appended claims:

I claim:

1. A razor blade stropper comprising a frame having two strop engaging sides in angular relation, a handle pivotally attached to said frame at the juncture of said sides, a blade holder pivotally mounted on said frame intermediate said sides and ercentric with respect to said frame pivot, and a pivotal connection directly between said blade holder and the handle at a greater radial. distance from the frame pivot than said blade-holder pivot.

2. A razor blade stropper comprising a frame having strop-engaging sides in angular relation, a handle, a rod attached to said frame at the juncture of said sides and to the handle concentric therewith so that the frame may oscillate about the longitudinal axis of the handle, a blade holder pivotally mounted on said frame between the sides thereof and eccentric to the axis of the handle, and a pivotal connection between the handle and blade holder eccentric to said blade holder and handle axes for oscillating the blade holder by similar movement of the handle, whereby to reverse the position of the blade on the strop and to similarly reverse the position of the frame on the strop.

3; ii razor blade stropper comprising fran' e having stropengaging, sides in angular relation, a handle pivotally connected to said frame to oscillate about an axis located at the juncture of said sides of the frame, a pivot rod carried by said frame between its sides and parallel to, said axis. a blade holder having opposed sides fixed at one end to said pivot rod and adapted at the opposite end to clamp an interposed. blade, and a pivotal connection between the handle and said blade holder eccentric with respect to the pivot axis of the handle and said pivot rod.

JOHN H. Parson.