US544544A

US544544A - Tool-sharpener

Info

Publication number: US544544A
Authority: US
Publication date: 1895-08-13
Anticipated expiration: 1912-08-13

Description

(No Mdel.)

A. M. MGLERAN. TOOL SHARPENER.

Patented'Aug. 13,1895.

l l e 2 UNITED? STATES PATENT Fries.

ALVORD M. MCLERAN, OF S'I. LOUIS, MISSOURI.

TOOL-SHARPEN ER.

SPECIFICATION forming part of Letters Patent No. 544,544, dated August 13, 1895.

Application filed November 24, 1894. Serial No. 529,851. (No model.)

.To @ZZ whom it may concern,.-

Be it known that I, ALvoRD M. MCLERAN, a citizen of the United States, residing at St. Louis, Missouri, have invented certain new and useful Improvements in Tool-Sharpen ers, of which the following is afull, clear, and eX-l act description, reference being had to the ac-` companying drawings, fornlinga par-t hereof.

My invention has relation to improvements' in tool-Sharpeners; and it consists in the novel arrangement and combination of parts more fully set forth in the specification and pointed out in the claims.

In the drawings, Figure 1 is a front elevation of the device. Fig. 2 is a vertical longitudinal section on the line ma; of Fig. 3. Fig. 3 is a vertical cross-section on the line/y y of Fig. 2, and Fig. 4 is a'detail of the two-part shaft forthe rotating disk.

The object of my invention is to construct a tool-Sharpener whereby tools of various description-such as knives, shears, and the like--can be sharpened with readiness and exactness, the device being so constructed that the operator can adjust the tool to that position which will determine the angle of the cuttingedge of the tool. To this end the device is constructed as follows:

Referring to the drawings, 1 represents a rotating disk of emery, sandstone, or other suitl vable material mounted between bearings 2,

secured to a base 3, which is supported on a standard 4, provided at its lower end with a grooved pulley 5, adapted to be operated by the pedals 6, and from which pulley extends a belt 7, around the standard, through asuit.- able opening in the base 3, and over agrooved pulley 8, mounted at one end of the shaft of the rotating disk. The shaft of the disk is preferably composed of two parts 9 and 10, the former having an interiorly screw-threaded socket 11, adapted to be passed over the screw-threaded extension 12 of the other part, and when theparts are fitted together the disk rests between the enlarged ends 13 of the respective parts. On opposite sides of the periphery of the disk, and forming a part of the casting constituting the bearings 2, are upright posts 14, to which are respectively pivoted the opposite endsof a guide-band 15, one end of said band extending a suitable distance beyond the pivotal point on that side and proto any angle (by first withdrawing the pin 18 from engagement) can be retained at that angle by engaging the pin 18 with the particular opening 17 which is opposite to it for that particular position of the band. Pivoted to the band 15, at opposite sides of the center thereof, isasecond guide-band 19, which may be made to swing either with the band 15 orbe tilted independently thereof, as shown in dotted lines in Figs. 1 and 3, and clamped by the thumb-nut'20 when once in proper position.

The tool to be sharpened, be it a knife or shears, is placed with its flat or broad side along the side ofthe band adjacent to the disk and the edge of thejtool drawn toward the operator and along the side of the sharpening-disk, or the tool may he held stationary to the'disk and the latterturned or operated by the foot-power above described.

By my present arrangement it is obvious that the tool can be sharpened at any angle, and when the guide-bands 15 and 19 are once adj usted the same will remain in position until changed for a different description :of tool.

It is immaterial, of course, what the nature of the driving mechanism for the disk may be, and where Fig. 1 illustrates a device operated by foot-power Figs. 2 and 3 illustrate one that may be turned by a crank in the hands of the operator.

Having described' my' invention, what I claim is#- 1. In a tool Sharpener, a suit-able sharpening disk, and a tilting support for the tool embracing said disk and adapted to bring the latter to any angle along the side of the disk,

and at the same time supporting and guiding said tool, substantially as set forth.

2. In a tool Sharpener, asuitable disk, bands embracing the disk and adapted to be tilted to any angle with the plane of the disk, and means for rotating the disk, substantially as set forth.

3. In a tool Sharpener, asuitable disk, a se- ICO ries of superposed bands pivotally secured to one another and embracing the disk, means for tilting said bands independently of one another to any suitable angle with the general plane of the disk, and suitable driving mechanism for the disk, substantially as set forth.

4. In a tool Sharpener, a suitable rotating disk, suitable bearings for said disk, suitable posts on opposite sides of the periphery of the disk, a band pivoted to said posts and enr bracing said disk, an extension at one end of the band, a perforated arc at the end of said extension, a springbperated pin mounted in ALVORD M. MCLERAN. W'itnesses:

LEE SALE, EMIL STAREK.