US 3289358 A
Description (OCR text may contain errors)
WW F. LONGOBARDI 3,289,3@
RAZOR BLADE HOLDER AND STROPPER FOR A HONE AND STROP Filed May 21, 1.964
f6 lg 30 f0 30 I .144 w 6/ d A) 0 v \xx 34 26 %/@]2 for $25266 lazzgo aid! (liq y United States Patent 3,289,353 RAZOR BLADE HOLDER AND STROPPER FOR A HONE AND STROP Felice Longobardi, 3643 W. 55th St., Chicago, Ill. Filed May 21, 1964, Ser. No. 369,230 1 Claim. (Cl. 51-218) This invention relates more particularly to a razor blade holder and stropper for a bone and strop, and an important object of the invention is to protect one edge of a double-edged blade when it is turned or reversed in sharpening the other edge and to provide a guard for the other edge to prevent cutting or damage to the operator.
Other objects of the invention are, to offset one edge of a blade for honing it, and overlapping the other edge; to provide handles attached to the outer sides of the hinged strips, for improving the grip; to provide projecting means in the strips to locate the handles and to guard the fingers from a blade; securing the handle grips to the outer sides of the strips; and to provide registering means at the free ends of the strips for keeping them together when a blade is in honing position between them.
Other objects of the invention will appear in the specification and will be apparent from the accompanying drawing, in which:
FIG. 1 is a perspective view of a razor blade holder in accordance with this invention, open for the reception of a blade therein; FIG. 2 is a perspective view of the blade holder of FIG. 1 with a blade applied to a hone, omitting intermediate strap waves and the handles as grasped being somewhat larger to act as the wave projections and held ing register for honing a blade; FIG. 3 is a cross-sectional view as taken on the line 33 of FIG. 2; FIG. 4 is a cross-sectional view similar to FIG. 3, with strip edges overlapping and protecting the blade edge opposite the stropped edge.
In honing (or stropping) a double edged razor blade, the edge not being honed may drag against or come into contact with some surface when the holder with a blade therein is turned or reversed in operation. If this edge is not protected it may also engage or cut the operator causing damage and injury. These objections are overcome in this invention by offsetting the edge to be honed outwardly from the holder, and by protecting the opposite edge by an overlapping cover or guard which prevents engaging the edge to damage it, and protects an operator from cutting or other damage.
It is also an advantage to provide opposite handle grips on the holder strips, attached at the outer sides when moved together, abutting projecting means between the ends which also engage and limit movement of the fingers toward a blade being honed, and also providing means at the free ends of the strips for registering them with each other, insuring the continued clamping of a blade in the holder.
Referring now more particularly to the drawings, two flat strips and 12 have a common hinge 14 at one end of each strip, and at about the distance of the length of a blade A to be honed from the hinged ends they are each formed with an outwardly rounded wave forming a projection 16 which divides the blade receiving portion from a portion for receiving a handle grip 18 in FIG. 2. This grip 18 is preferably slightly higher than the projection 16 would be and the end is rounded downwardly to it forming a stop or projection for receiving the thumb or forefinger of an operators hand, so that the projection 16 acts as a stop limiting the movement of a hand toward the sharp blade.
One of the strips 12 is formed in the blade portion with one edge projecting laterally and having an inwardly bent flange 20 to overlap this edge of the blade. The
other outside edge 22 of this strip Was chamfered or beveled to extend closely to the blade at the honing side.
The other strip 10 has a flat edge 24 terminating short of the inwardly bent flange 20 of the other strip, and the other edge 26 is charnfered or beveled at the outer side to fit closely against a blade A.
One strip 12 has projections 28 and the other strip 10 has recesses or perforations 30 into which the projections 28 may extend, adapted to register with well known recesses (not shown) in a razor blade. These projections 28 and recesses 30 are eccentric to the transverse centers of the strips, or may be said to be offset longitudinally from the centers, so that one edge of a blade A projects beyond the edges 22 and 26 of the strips, and the other edge of the blade is overlapped or covered by the flat edge 24 and overlapped, covered and guarded by the flange 20, so that only one edge of the blade is exposed at a time for stropping or honing, the opposite edge being covered and guarded so that it cannot be damaged or do any damage.
Each handle grip 18 is smoothly rounded at the sides and ends and secured to a strip 10 or 12 by rivets 32 leaving the outer ends of the strips with a central tongue 34 on one strip 10 to register and fit between two projections 36 on the other strip 12. This keeps a blade A tightly in place between the strips when the handle grips are moved together, and the blade applied to a strop or hone, as shown in FIG. 2. With this construction the opposite edge is protected against damage to it, and to others, both objects and users.
In the form shown in FIG. 4, a blade A to be sharpened will have an upper strip 40 and a lower strip 42 with perforations 44 and matching projections 46 respectively (only one shown), located eccentrically of the center so that one edge of the blade engaged thereby will project at the adjacent edges of the strips and the opposite edge of the blade will be overlapped and protected by the other edges of the strips, thereby forming a guard] for protecting this edge of the blade from damage to it and from cutting or damaging other objects.
A blade A may have one edge honed and stropped, and then reversed for the other edge, and the strips opened and closed to release and engage another blade. In all cases only the honed edge is exposed and the other edge is protected against damage to it and any caused by it.
In operation, a blade is retained in honing position as long as the strip registering means is in engagement, the handle grips provide smooth manual engagement, and the stops and recesses warn and guard the hands from contact with a blade.
As thus described, the construction should be regarded as an illustration or example of the invention rather than a limitation or restriction, as various changes in the construction, combination, or arrangement of the parts may be made without departing from the spirit and scope of the invention.
A razor blade holder and honer for double-edged blades having aligned openings along the center comprising:
(a) two generally rectangular flat metal strap members hinged at one end of each one to swing apart and fold flatly together about a pin having an axis in the plane of said straps clamping a razor blade between them at the hinged end;
(b) each member having a blade receiving portion near its closed end with blade engaging means eccentrically located nearer corresponding edges of the members for engaging said center blade openings, so that one edge of a blade projects from the corresponding edges of the members when they are closed;
(c) the other edge of a blade being covered by the Wider eccentric portions of the members so that the blade does not project at the corresponding side of the holder;
(d) the relatively outer edges of the members from which a blade projects being beveled to direct a projecting blade edge closely to a hone at both exposed side faces of the member sides;
(e) means on the outer ends of the strap members providing a single hand grip when a blade is in honing engagement and having oppositely outward curved portions constituting a blade warning safety stop at the outer end of a blade clamping position;
(f) and a flange at the edge of blade receiving portion of one member which extends eccentrically beyond the other strap member but parallel thereto, the flange also projecting in the direction of the other strap member but free thereof and in an amount at least equal to the thickness of said other strip memher and the blade itself, to overlap and protect the adjacent edge of a blade when the opposite edge is being honed.
References Cited by the Examiner UNITED STATES PATENTS FOREIGN PATENTS Great Britain.
HAROLD D. WHITEHEAD, Primary Examiner.