To all whom it may concern:

Be it known that I, John C. Cottie, a citizen of the United States, residing in Manhattan borough, New York city, in the county and State of New York, have invented new and useful Improvements in Razor-Stroppers, of which the following is a specification.

This invention relates to a stropping machine or device by which a razor-blade can be satisfactorily sharpened or stropped along its entire extent or, as it might be expressed, “from heel to toe;” and the invention resides in the novel features of construction set forth in the following specification and claims and illustrated in the annexed drawings, in which—

Figure 1 is a plan view of the stropping device. Fig. 2 is a section of the frame along line w, Fig. 4. Fig. 3 is a section along line x x, Fig.2. Fig. 4 is a section along line y y, Fig. 2. Fig. 5 is a section along line z z, Fig. 2. Fig. 6 shows a modification.

In the drawings is shown a frame comprising what may be called a “base” or “base part” a′, cross part a², arms a³, and a rear part a⁴. A blade-holder b or its pivot part b′ is rotatable or rocks in the frame and is provided with a gear c, engaged by a sector d.

In speaking of part d as a “toothed sector” it is of course understood that a disk or gear-wheel or the like is included; but as only a portion of the teeth of such wheel would mesh with the pinion c a gear-sector d is sufficient. A handle e is arranged to actuate or rock the sector, so that pinion c, with holder b, is swiveled or rocked to cause the holder to move or slap first one face and then the other of blade f to the strop g, which latter the arms a³ are adapted to engage or rest on.

The sector d has a crank-arm h, said sector and crank-arm being shown located at opposite sides of frame or depending part a′ and having a common pivot i, mounted on and extended through the frame. The handle e, fulcrumed at k or to frame part or tail a⁴, is jointed to crank h, and as the handle and frame rock relatively to one another about pivot k the crank h and sector d are rocked, and consequently also the gear c and the blade-holder. The frame is shown with stops or pins l, Fig. 3, which limit the swing or rock of the sector d and blade-holder.

The device can be modified. Instead of having a crank h engaged by the handle the latter could be extended to directly engage the sector d′, Fig. 6. In this case the base a⁵ would be slotted, as at a⁶, to allow swinging of the extended handle end or lever. The device with a crank has, however, been found satisfactory.

In the example shown in the drawings the arms a³ are non-rotary, and in moving back and forth on the strop the friction will cause oscillation of the parts about pivot k or varying angular positions between the frame and the handle. In an example tried practically the arms a³ were also provided with a friction-surface m—say a sleeve or ring of rubber or like material having a tendency to grip or exert friction on the strop, and which sleeve was fixed or non-rotary. Such addition of a friction-surface has, however, not been found absolutely necessary, and in simpler or cheaper grades of goods could be omitted and the arms a³ made to secure the desired grip or friction.

What I claim as new, and desire to secure by Letters Patent, is—

1. A razor-strapper comprising a frame having arms arranged to rest on a strop, a blade-holder rotatable in the frame and provided with a pinion, a sector pivoted to the frame and gearing with the pinion, and an oscillating handle pivoted to the frame and arranged to impart an oscillating movement to rock the blade-holder, substantially as described.

2. A razor-stropper comprising strop-engaging arms, a rotary blade-holder having a gear, a handle, and a gear-actuating sector having a crank engaged by the handle, said sector and crank being located at opposite sides of the frame substantially as described.

3. A razor-stropper comprising strop-engaging arms, a rotary blade-holder having a gear, a handle, a gear-actuating sector and a crank engaged by the handle, said sector and crank having a common pivot mounted on or extended through the frame substantially as described.

4. A stropping-machine comprising a frame with strop-engaging arms, a rotary blade-holder provided with a gear, a sector and handle for actuating the gear, and stops for limiting the movement of the sector substantially as described.

5. A razor-stropping machine comprising a frame with a base part a′, a tail part a⁴ and arms adapted to engage a strop, a blade-holder rotatable in the frame and having a gear, a sector for actuating the gear, and a handle for actuating the sector, said sector and handle being respectively pivoted or fulcrumed in the base and tail of the frame substantially as described.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

John C. Cottie.

Witnesses:

H. Reichard,

E. F. Kastenhuber