US786141A - Hone. - Google Patents

Description

No. 786,141. PATBNTED 1111111.28, 1905.l

l T. MOGRAIL & J. GWENS.

BONE.

APPLIOATIUN FILED Nov. 1, 1904.

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' f 7l gam 151m? Streuung UNITED STATES Patented March 28, 1905.

PATENT OFFICE.

HONE.

SPECIFICATION forming part of Letters Patent No. 786,141, dated March 28, 1905.

Application filed November l, 1904. Serial No. 230,986. v

To CLZZ whom/ Z125 711/60,/ concern,.-

Be it known that we, THOMAS MCGEAIL and JOHN OWENS, citizens oi' the United States, re-

siding at Oentralia, in the county of Lewis andV State of Washington, have invented certain new and useful Improvements in Hones; and we do declare the fol-lowing to bea 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.

This invention relates to improvements in hones for razors and other {ine-edged instruments.

The object of the invention is to provide a hone having magnetic properties which will attract a razor or other instrument by being drawn across the same in the act of sharpening.

A further object is to providemeans in connection with a hone oil this character whereby the magnetic properties of the same will be removed at the points where the razor or other instrument is turned in its reciprocating movement across the hone.

With these and other objects in view the invention consists of certain novel features of construction,combination,and arrangement oi' parts, as will be more fully described, and particularly pointed out in the appended claims.

In the accompanying drawings, Figure l is a perspective view of a hone constructed in accordance with the invention. Fig. 2 is an end elevation of the same. Fig. 3 is a perspective view showinga modified form of the invention.

Referring more particularly to Figs. 1 and 2 of the drawings, l denotes a block which is preferably rectangular in shape and is formed of steel or other material having magnetic properties. The upper and lower sides of the hone may be smoothly polished, or the same may be grained, or, if desired, oneside of thesame may be polished and the opposite side grained. In one end of thehone l is Jformed Vertical and horizontal longitudinally-disposed slots 2 and 3, which extend from said end upwardly to near the opposite end of the hone, thereby separating a portion of the same into ionr poles after the manner of horseshoe-magnets. Near each end of the hone and in one or both sides of the same are formed transversely disposed dovetail recesses 4, into which are adapted to be inserted dovetail-shaped blocks 5, the upper sides of which are adapted to lie flush with the surface of the lione. These blocks are preferably formed of brass or other non-magnetic material.

In Fig. 3 of the drawings is shown a hone l, which is similar in construction to that shown in Figs. 1 and 2, but in which the slots 2 and 3 are not formed, thus leaving the hone solid throughout its entire length.

In Fig. 4 of the drawings is shown a hone formed of a solid block of steel or other metal which may or may not be magnetizech as desired, and in which both the slots and the brass plates are left out.

The object of the brass or non-magnetic plates 5 is to form a ilush surface near each end of the hone where there will be no magnetic influence to attract the blade of the instrument being sharpened, thereby enabling said blade to be more readily turned for the return stroke. l

A hone constructed as herein shown and described will be found to be eflicient and well adapted to the purpose of sharpening razors and other tine-edged instruments more quickly and easily than can be done on hones of the usual construction.

Frein the foregoing description, taken in connection with the accompanying drawings, the construction and operation of the invention will be readily understood without requiring a more extended explanation.

Various changes in the form, proportion, and the minor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of this invention.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is

l. A hone having a magnetic body portion and non-magnetic parts arranged near each end of the same.

2. A hone having a magnetic body portion,

dovetailed edges adapted to be inserted in said dovetail grooves the upper surface of said 15 blocks being liush with the surface of said body portion, substantially as described.

In testimony whereof' We have hereunto set our hands in presence of two subscribing witnesses.

THOMAS MCGRAIL. JOHN OWENS.

Witnesses:

D. B. REBS, MILES MCGRAIL.

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