FiledMonday, 24th April 1905
PublishedTuesday, 24th April 1906
InventorEdward B. Gibford
OwnerAmerican Safety Razor Co.
Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges of knives; of razors
Performing Operations; Transporting
Tools For Grinding, Buffing, Or Sharpening
Hand tools or other devices for non-rotary grinding, polishing, or stropping
Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges
Parts not referenced in the text: None
Parts not referenced in the images: None
To all whom it may concern:
Be it known that I, Edward B. Gibford, a citizen of the United States, residing at Adrian, in the county of Lenawee, State of Michigan, have invented certain new and useful Improvements in Stropping-Machines; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification.
This invention relates to stropping-machines especially designed for stropping safety-razor blades; and it consists in the construction and arrangement of parts hereinafter fully set forth, and pointed out particularly in the claims.
The object of the invention is to provide a stropping-machine which will successfully hold and strop a very thin and light safety-razor blade and at the same time automatically swing said blade as the direction of movement of the stropping device is changed so as to bring its edge properly into contact with the strop, making possible the stropping of a very thin blade not attainable heretofore.
The above object is attained by the mechanism illustrated in the accompanying drawings, in which—
Referring to the characters of reference,
The blade-holding shaft
The spaces between the shaft and the sleeves
Having thus fully set forth my invention, what I claim as new, and desire to secure by Letters Patent, is—
1. In a stropping-machine, the combination of the rotary sleeves and gears thereon, the rotary shaft carrying a gear meshing with the gears on said sleeves, said shaft having a narrow longitudinal slot therethrough to receive a thin blade, and a device on the shaft for locking the blade in said slot.
2. In a stropping-machine, a rotary blade-holder consisting of a shaft having a narrow longitudinal slot therethrough adapted to receive a thin blade, a fixed member on the shaft adapted to engage one end of said blade, and a movable member on the other end of the shaft adapted to engage the other end of the blade to hold it in said slot.
3. In a stropping-machine, a blade-holder consisting of a rotary shaft, said shaft having a longitudinal slot therethrough, a fixed collar at one end of the shaft which embraces a portion of said slot at one end, and a movable collar at the opposite end of the shaft embracing a portion of the opposite end of said slot.
4. In a stropping-machine, the combination of the rotary sleeves carrying the gear-wheels, the casing embracing said gear-wheels, the rods passing through the casing and through the sleeves, the end plate extending between the ends of said rods and attached thereby, the central shaft carrying a gear-wheel which meshes with the gear-wheel on the sleeves, said shaft having a longitudinal slot therethrough adapted to receive a thin blade, a fixed collar on said shaft adapted to engage one end of the blade, a sliding collar on the other end of the shaft adapted to engage the opposite end of the blade, and a handle attached to the casing for manipulating the device.
In testimony whereof I sign this specification in the presence of two witnesses.
Edward B. Gibford.
Clarke E. Baldwin,
W. B. Alexander.