Stropping Device
Patent US686972
Invention Stropping Device for Safety-Razors
Filed Saturday, 3rd August 1901
Published Tuesday, 19th November 1901
Inventors Frederick, Otto and Richard Kampfe
Language English
CPC Classification:B24D15/08
- B24D15/08
Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges of knives; of razors - B
Performing Operations; Transporting - B24
Grinding; Polishing - B24D
Tools For Grinding, Buffing, Or Sharpening - B24D15/00
Hand tools or other devices for non-rotary grinding, polishing, or stropping - B24D15/06
Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges
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To all whom it may concern:
Be it known that we, Frederick Kampfe, Richard Kampfe, and Otto Kampfe, citizens of the United States, residing in New York, borough of Brooklyn, in the State of New York, have invented certain new and useful Improvements in Stropping Devices for Safety-Razors, of which the following is a specification.
The invention relates to an improved stropping device for safety-razors.
The object of the invention is to provide a device of this character which is constructed so as to be held between the thumb and fingers when in use in order to more evenly distribute the pressure of the razor on the strop and also facilitate the operation and the invention consists of a stropping device for safety-razors which comprises a base-frame guided on the strop, a slide-frame mounted thereon and provided with handles for reciprocating it on the base-frame, a spring-actuated blade-holder pivoted to the slide-frame, and means for connecting the crank of the blade-holder with the base-frame, so as to produce the tilting of the blade-holder and blade from one side to the other while the device is moved over the strop; and the invention consists, further, in certain details of construction and combinations of parts, which will be fully described hereinafter and finally pointed out in the claims.
In the accompanying drawings,
Similar letters of reference indicate corresponding parts.
Referring to the drawings,
Our improved stropping device is used as follows: The blade to be sharpened is inserted into the blade-holder and the same placed in position on the strop. The device is then reciprocated to and fro over the strop, the motion of the slide-frame in one direction on the base-frame producing the tilting of the blade-holder and blade in a direction opposite to the motion of the slide-frame, so that the edge is moved over the strop, while the reciprocating motion of the slide-frame in opposite direction produces likewise the tilting of the blade-holder and blade in opposite direction, so that the opposite side of the edge is passed over the strop and sharpened thereby. The change in the direction of motion of the base-frame and slide-frame over the strop produces the simultaneous tilting of the blade-holder and blade, so that the blade is thereby quickly tilted and moved to and fro over the strop, so that its edge is quickly sharpened. It is preferable to bend the upper edges of the handle-plates of the reciprocating slide-frame inwardly, so as to give a good hold to the fingers on the same, as shown in
Having thus described our invention, we claim as new and desire to secure by Letters Patent—
1. A stropping device for safety-razors, consisting of a base-frame adapted to be guided over the strop, a slide-frame guided on said base-frame, a spring-actuated blade-holder pivoted to said slide-frame, and means for tilting the blade-holder and blade inserted therein while the slide-frame is reciprocated on the base-frame, substantially as set forth.
2. A stropping device for safety-razors, consisting of a base-frame provided with means for guiding the same over the strop, a reciprocating slide-frame guided on said base-frame, a spring-actuated blade-holder pivoted to the slide-frame, said slide-frame being provided with transverse handle-plates at its opposite ends, and means for tilting the blade-holder and blade inserted therein while the slide-frame is reciprocated on the base-frame, substantially as set forth.
3. The combination of a base-frame provided with longitudinal guide-rods, and means for guiding the same over the strop, a slide-frame guided on the guide-rods of the base-frame and provided with transverse handle-plates for taking hold of the same, a blade-holder pivoted to said slide-frame, and mechanism between a pivot of the blade-holder and said slide-frame for imparting a tilting motion to the blade-holder while the slide-frame is reciprocated on the base-frame, substantially as set forth.
4. The combination, with the base-frame, provided with longitudinal guide-rods, of means for guiding said base-frame over the strop, a slide-frame provided with keepers and guided on the base-frame, transverse handle-plates attached to the slide-frame for reciprocating the same, a spring-actuated blade-holder pivoted to the slide-frame, a blade in said holder, a slotted crank attached to the pivot of the blade-holder, an oscillating pivot-link provided with a pin engaging the slotted crank, and a pivot-rod connecting said oscillating pivot-link and the base-frame, substantially as set forth.
5. In a stropping device for safety-razors, a pivoted blade-holder made of approximately
In testimony that we claim the foregoing as our invention we have signed our names in the presence of two subscribing witnesses.
Frederick Kampfe.
Richard Kampfe.
Otto Kampfe.
Witnesses:
Paul Goepel,
Henry Suhrbier.