US540944A

US540944A - Frederick bold

Info

Publication number: US540944A
Authority: US
Publication date: 1895-06-11
Anticipated expiration: 1912-06-11

Description

(No Mode 1.)

1?.BOLD. COMBINED KNIFE AND SGlSS ORS SHARPENER AND GLASS CUTTER. No. 540,944.

Patented June 11, 1895.

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STATES PATENT -FFlE@ FREDERICK BOLD, OF ST. LOUIS, MISSOURI, ASSIGNOR OF ONE HALF TO F. WILLIAM GRUNDMANN, OF SAME PLACE.

COMBINED KNIFE AND SCISSORS SHARPENER AND GLASS-CUTTER.

SPECIFICATION forming part of Letters Patent No. 540,944, dated June 11, 1895.

Application filed December 24, 1894. Serial No. 532,868. (No model.)

T0 on whom it may concern.-

Be it known that'I, FREDERICK BOLD, of

the city of St. Louis and State of Missouri, have'invented certain new and useful Im-E provements in a Combined Knife and Scis-f; sors Sharpener and Glass-Cutter, of which the following is a full, clear, and exact descrip-' tion, reference being had to the accompany-i ing drawings, forming a part hereof.

My invention relates to a combined knife and scissors sharpener and glass cutter, and consists in the novel construction, combination and arrangement of parts, hereinafter described and claimed.

The object of my invention is to produce an improved combined. knife and scissors sharpener and glass cutter that is simple, inexpensive, durable and capable of being quickly and efficiently used.

A further object of my invention is to 10- cate a pair of hardened metal disks upon a block, one of which projects at an angle beyond the beveled end of the block in order to allow the edge of said disk to contact with glass or analogous material which it is desired to cut.

A further object of my invention is to locate a pair of hardened metal disks upon a block, the end of which is beveled off, and in which is formed a notch, thus forming guides for the scissors and knives While the same are being sharpened.

In the drawings, Figure 1 is a view in perspective of my improved combined knife and scissors sharpener and glass-cutter, the same showing a knife in position relatively thereto while said knife is being sharpened. Fig. 2 is a bottom plan View of my improved device, a portion of a pair of shears or scissors being shown in dotted lines in position thereon when the same are being sharpened. Fig. 3 is a view in perspective showing the device used as a glass-cutter. Fig. 4 is a side view of my improved device, showing a portion of the surface thereof covered with emery or analogous substance. Fig. 5 is a longitudinal sectional view taken approximately on the indicated line 5 5 of Fig. 4.

Referring by numerals to the accompanying drawings, 1 indicates a rectangular block of wood or analogous material, having the beveled forward e'nd2 and integral handle 3.

4 indicates the top, 5 the bottom and 6 and 7 the sides of the block 1.

The side 6 of the'block l is provided with the inclined faces 8, 8, the same extending in each direction from a V-shaped groove 9 that extends to the bottom 5 on one side and to a notch 10 formed in the top 4, said notch 10 extending approximately half way across said top 4. v V

The'side 7 of the block 1 is covered with a layer or coating of emery or analogous substance, there being preferably two different grades of said emery, the coarser being located at the forward end of the block 1 and the finer toward the handle 3 of said block.

Positioned one upon each of the inclined faces 8, 8 in such a manner'as that their edges meet directly above'the juncture of the V- shaped groove 9 with thenotch 10 are hardened

metal disks

11 and 12. Said disks are provided with centrally arranged circular apertures 13 through which pass ordinary wood screws 14, thereby rigidly mounting said disks in position. a

The apertures 13 are slightly larger in diameter than are the bodies of the screws 14, in order that the meeting edges of said disks may contact in order to allow them to perform their proper function.

The disk 12, or the one near the end of the block 1, projects a slight distance beyond the beveled or inclined face 2 of said block.

The practical operation of my improved device is as follows: Premising that it is desired to sharpen a knife, the operator with one hand grasps the handle 3 and with the'other so positions the knife to be sharpened that the heel of the cutting edge thereof contacts with the meeting edges of the hardened

metal disks

11 and 12 and with the rear point of the notch 10. By now drawing the knife across the meeting edges of the disks andapplying the proper pressure to said knife, said meeting edges of the disks will cut and remove a slight quantity of the material from the cutting edge of the knife the entire length of the blade, for the reason that said hardened metal disks are set at a slight angle relative to one another,

knife-blade. This operation being performed,

should it be desired to give the blade a finer edge, the operator strops the knife-blade in the usual manner upon the emery that is located upon the side 7 of the block 1.

When it is desired to sharpen scissors or shears with my improved device, each member of the shears or scissors is in turn laid.

flat upon the beveled end 2 of the block 1 and reciprocated longitudinally thereonin such a manner as that the cutting edge of the member contacts with that portion of the disk 12 that projects beyond the beveled end 2 of said block. The edge of the disk 12 and the end 2 of the block 1 being atdifferent angles relative to one another, a suitable angle may be given to the cutting edge of each member of a pair of shears or scissors.

When it is desired to use my device as a glass cutter the screw 14 that holds the disk 12 is slightly loosened in order to allow said disk 12 to freely rotate upon thebody of said screw. By now holding the edge of said disk 12 at an angle relative to the glass to be cut, applying pressure to said device and allowing the edge of the disk 12 to contact with the glass, the desired result may be accomplished, as the edge of the periphery of the hardened metal disk 12 will cut into the glass in the ordinary manner.

Should at any time the edges of the periphcries of the disks that are being used become slightly dull or unfit for use, by slightly loosening the screws 14, either one or both of said disks may be turned aslight distance in either direction, thereby bringing the unused edges of said disks into position where they will be sides of said disks brought into use.

The notch 10 in the block 1 adjacent the

disks

11 and 12 insures the correct positioning of the knife-blade when the same is being sharpened. In a like manner does the inclined or beveled end 2 of the block 1 insure the correct positioning of the members of a pair of shears or scissors while they are being sharpened.

Thus will be seen how I have constructed a combined knife and scissors sharpener and glass cutter that possesses superior advantages in point of simplicity, durability and general efiiciency.

What I claim is- The combined knife and scissors sharpener and glass-cutter, comprising the rectangular block 1 having its end 2 cut off at an acute angle, a handle 3 at the end opposite said angle, a circular sharpening-disk 12 pivotally mounted on one side of said block so that its edge projects a distance over and beyond said angular end of said block, and another circular sharpening-disk 11 pivotally mounted with its periphery closely adjacent said disk 12, substantially as herein specified.

In testimony whereof I afiix my signature in presence of two witnesses.

FRED. BOLD. Witnesses:

E. E. LONGAN, JOHN G. HIGDON.