Improvements in Razor Stropping Devices.
Year: 1889

page_text: Date of Application, 4th June, 1889-Accepted, 14th Sept., 1889
COMPLETE SPECIFICATION.
Improvements in Razor Stropping Devices.
We, FREDERICK KAMPFE, RICHARD KAMPFE and OTTO KAMPFE, all of 8 Reade
Street, in the City County and State of New York, United States of America,
Manufacturers, do hereby declare the nature of this invention and in what manner
the same is to be performed, to be particularly described and ascertained in and by the
following statement :-
Unskilled persons in the act of stropping razors, usually make the serious mistake
of turning the razor blade over on its edge instead of turning it over on its back, thus
ruining the cutting edge.
The object of our Invention is to provide a device for holding razor blades and
automatically turning the same over on the back of the blade at the end of the stroke,
thereby rendering turning on the edge impossible.
The Invention consists in a razor stropping device provided with a friction roller for
automatically reversing or turning the blade over on its back at the end of each stroke.
The Invention also consists in the construction and combination of parts and
details, as will be fully described hereinafter and finally be pointed out in the claims.
In the accompanying drawings, figure 1 is a side view of one construction of our
improved stropping device, shewing the manner in which an ordinary razor is held on
the same. Figure 2 is a side view of another construction of stropping device, shew-
ing a safety razor blade held in the same; and figure 3 is a cross-sectional view on
line a figure 2; Figures 4 and 5 are side-views of modified constructions. Similar
letters of reference indicate corresponding parts.
Referring to figures 2 and 3, A is a block provided with a central handle spindle A'
on which the handle B turns freely. From the opposite ends of the block A two rods
or spindles C project in a direction opposite to that of the handle spindle and on each
spindle a friction roller F is loosely mounted. These rollers are covered with
leather, rubber, or other suitable material. On the lower end of each roller Fa
toothed segment E is rigidly fixed which segments engage at diametrically opposite
points a pinion D of the longitudinally slotted blade holder G which is mounted to
turn on the spindle D' projecting from the block A parallel with, and midway
between, the spindles C. From the under side of one segment E project two stops E¹
which strike against the sides of the block A and limit the rotary movements of the
segments E and friction rollers F. In using the device, the razor blade H is placed
in the blade holder G and the device placed upon a strop in such manner that the
rollers F rest upon said strop. The implement is then moved in the direction of the
arrow figure 3, whereby one side of the blade H is drawn over the strop I, shewn
in dotted lines in figure 3. On reaching the end of the stroke, the device is moved in
the opposite direction, whereby the friction rollers F are rotated in the direction of
the arrow and, by means of the gearing, turn the blade holder and blade through a
half revolution in the direction of the arrow 2 so that the opposite side or face of the
blade now bears upon the strop and can be drawn over the same. The blade is thus
automatically reversed, that is, turned on its back whenever the direction in which the
implement is moved is reversed, and all danger of spoiling the cutting edge by turning
the blade on said edge is avoided.
In the construction shewn in figure 1, one friction roller only is used. It operates
in the manner above described. To strop an ordinary razor, a rubber tube m or
analogous device, shewn in dotted lines in figure 1, is used to hold the blade and
handle in line.
If desired, the friction roller may be made smaller and be grooved, as shewn in F
in figure 4, in which case the friction roller travels on a separate friction piece at the

page_text: side edge of the strop so that when the direction in which the implement is moved is
reversed the blade will also be reversed and turned on its back.
If desired, a grooved friction roller F5 may be applied on the blade holder itself, as
shewn in figure 5, and over said grooved roller a cord is passed which is arranged at
the side of the strop, or the cord can be passed over the grooved roller and over an
additional roller. Fe on an arm of the handle.
Having now particularly described and ascertained the nature of the said Invention
aud in what manner the same is to be performed, we declare that what we claim is
i
1. In a razor stropping device, the combination, with the blade holder; of a spindle
adjacent to the blade holder and carrying a friction roller, and gearing for trans-
mitting motion from the spindle carrying the friction roller to the blade holder,
substantially as set forth.
2. In a razor stropping device, the combination, with a block, of two parallel
spindles one carrying a blade holder and the other a friction roller, gearing for trans-
mitting motion from the spindle carrying the friction roller to the spindle carrying
the blade holder and check pins on the gear wheel of the roller spindle, substantially
as set forth.
Datad this 4th lov of June 1880