US1540078A

US1540078A - Sharpener

Info

Publication number: US1540078A
Application number: US715423A
Authority: US
Inventors: William R Long
Original assignee: Individual
Current assignee: Individual
Priority date: 1924-05-23
Filing date: 1924-05-23
Publication date: 1925-06-02
Anticipated expiration: 1942-06-02

Description

W. R. LONG SHARPENER Filed May. :1,924

l /N VEN TUA of St.

Patentedl June 2, 1925..

UNITED' STAT-Es WILLIAM R LONG, OF ST. LOUIS, MISSOURI.

SHARPENER.

Application filed May 23,

To all whom t may concern.' l

Beit known that I, WILLIAM R-.`LONG, a citizen .of the United States of America,l residinof at 2234 Eugenia Street, in the city Iouis andState of Missouri, have-invented certain new and nseful Improvements in Sharpeners, `of which the vfollowing is a specification.

The object kof my device is to make a Sharpener to be used particularly for safety razor blades. Afurther object is to devise a machine for stropping and honing safety razor blades, particularly those of the welll known Gillette type. A still further object is to devise a meansof .easily and simply and manually stropping and honing blades of the typeV indicated. My device is simple in construction, made of few parts that lend themselves readily to multiple production and can be cheaply produced.

With these and other objects lin view, my invention has relation to certain novel features oflconstruction and arrangement of parts as will be hereinafter more fully de-l scribed, pointed out.in the claims and illustrated in the drawing, in which- Fig. 1 is a perspective'view of my device showing the blade holder and a blade in operative position;

Fig. 2 is a cross-section on the line 2-2 of Fig.' 1; and I e Fig. 3 is a perspective of the blade holder, together with a blade showing the method of detachably securing the blade to the holder.

Numeral 3 designates a block preferably of wood having the channels 4 and 5 formed in it longitudinally in the center, one on eachface as best shown in Fig.v 2. The upper and lower surfaces are inclined from the outer longitudinal edges to the channels 4 and 5. At the ends of the block 3 are secured the metal straps 6 which entirely cover the ends and which extend along the longitudinal faces and which are secured to the block 3 by screws 7 The width of the straps 6 is equal to the greatest thickness of the block 3. On the inclined upper faces of the block 3 by means of the screws 8 are secured the

corrugated metal strips

9 and 10. The corrugations are parallel to the ends of the block 3 and the strips are made of soft steel. The blade holder 1l consists of a metal plate 12 having its ends 13 bent upwardly at right Vangles to the metal plate 12. Projections 14 1924. serial no. 715,423.

are formed on the under surface of the metal 'plate 12 of such diameter. as to permit the bla-de l5 being laidy on to` the metal plate 12 with the projections extending through the holesin the blades 15.- The metal blade 15 is resilient. 'When it is desired to sharpen theblade 15, it is positioned on the blade V holder 11 `and then the blade and blade holder laid on the strips 9`and 10 Withthe projections 14 extending into the channel 4 as is best'shown in Fig. 1I The ends 13 of the blade-holder 11 act as handles or grasping means for the operator. In sharpening the blade 15 the ends 13 arefgripped be- `tween the thu-mb and .first finger preferably and the blade depressed against the

strips

9 and 10. arcuated position as best shown in Fig. 2. The sharpening consists in moving the blade holder and blade longitudinally on the block It will be-seen that the razor edges of the bladewill be in contact with

thestrips

9 and 10. It is the contact of therazor with these strips that sharpens the blade. After this operation has continued for probably a dozen strokes, the blade is reversed and the operationl continued.I

When it is desirable to `only strop the b'l-ade or to sharpen it when it is not very dull, the opposite side of the block 3 is used. The projections v14 ofthe blade holder 11 then extend into the channel 5. In this operation the edges of the blade are rubbed against the surface of the inclined surfaces. If the block 3 is made of a hard wood, such as oak, and the blade moved across it in the manner described a few times, the desired edge will be obtained. The purpose of the .The blade will ,then assume anv str-aps 6 is to limit the movement of the `inclined surfaces of said block, said strips corrugated with the cori'ugations parallel to the ends of the block.

2. A block having a longitudinal channel on its upper surface and a similar'channel centrally located on the lower surface, and

having inclined surfaces extending from the longitudinal sides of said block to said channels. l

3. A block having. a longitudinal channel [on its upper surface and a similar channel centrally located on theloWer surface, and having inclined surfaces extending from the longitudinal sides of'sa-id -block to said channels, metal strips secured tothe inclined surfaces of one face of saidblock.

4. A device of the character described comprising a block having longitudinal oentrally located channels formed on the upper and lowersurfaces, a metal corrugatedv strip formed l on the inclined surfaces of one of thefaves lof said block, a blade holder having prbjections extending therefrom so that the projections may be extended into the channels of said block permitting the bladefholder being moved longitudinally in the channel of said block.

In testimony whereof I affix my signature.

7 WILLIAM R. LONG.