US876825A - Device for honing and stropping razors. - Google Patents

Description

No. 876,825. YPATENTED JAM-1'4, 1908.

G. w. MOSBY. Y

DEVICE FOR HONING A-ND STROPPING RAZORS.

- APPLIOATION FILED 901-4, 1907.

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Slavonic;

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No. 876.825. v PATENTED JAN. 14, 190 G. W. MOSBY.

DEVICE FOR HONING AND STROPPING RAZORS.

APPLICATION FILED 0013.4, 1907.

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GEORGE W. MOSBY, OF RED BANK, NEW JERSEY.

DEVICE FOR HONING AND STROPPING RAZORS.

Specification of Letters Patent.

Patented Jan. 14, 1908.

Application filed October 4, 1907. Serial No. 395979- To all whom it may concern:

Be it known that I, GEORGE W. MosBY, a citizen of the United States, residing at Red Bank, countyof Monmouth, State of New Jersey, have invented certain new and useful Improvements in Devices for Honing and Stropping Razors, of which the following is a full, clear, and exact specification.

My invention relates to an improved device for holding and stropping razors and similar edged tools, the object of the invention being to improve upon the structure disclosed in Patent No. 759,626, granted to me May 10, 1904.

A further object is to provide improvements of this character in which an oscillating movement of an arm will cause the razor blade to slide not only across the hone, but Will at the same time turn the blade at each end of the stroke and present the opposite side to the hone at the proper angle.

A further object is to provide improved means for adjusting the turning movement of the razor holder to compensate for varying thicknesses and angles of blade.

A further object is to provide improved mounting for the hone or stone, enabling the latter to accommodate itself to the stroke of the blade and the angle thereto, and also permitting adjustment of the mounting to support different sizes of hone or stone.

A further object is to provide a mechanically operating device of this character which will perform all of the movements in hand honing but will insure a perfectly uniform pressure and stroke.

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

Referring to the accompanying drawings wherein corresponding numerals of reference are used to indicate corresponding parts in each of the several views :F igure 1 is a top plan view illustrating my improvements. Fig. 2 is a fragmentary view partly in longitudinal section. Fig. 3 is a rear end view. Fig. 4 is a top View of the pivoted disk detached. Fig. 5 is an end view of the hone and its mounting. Fig. 6 is a detail view in end elevation of the razor clamp; and Fig. 7

is a view sh owing the clamp supporting a safety razor blade holder.

1 indicates a base plate preferably of metal cured in the platform 2, and a flanged wear plate 4 is interposed between the base and disk 3, as shown. The disk 3 is formed with a vertical opening in the rear of its center through which extends a post 7, having a transversely-bored head to receive the rear end of a rod 5, and the coil spring 6 which encircles the rod 5 is located between post 7 and the cross pin 8, which passes through the rod.

A plate 9 supported on disk 2 is pivotally secured thereto at its rear end by a screw 10 and is provided near its rear end with a curved slot 11, into which the bolt 4, projects to limit the independent turning movement of the plate.

Pivotally secured upon the plate 9 by means of a screw 12 is an arm or link 13, having eccentrically pivoted upon its upper surface a small disk 14, from which projects eccentrically pin 15, the latter extending through rod 5.

At the forward end of rod 5, a shaft 16 is located and has a rotary connection with the end of rod 5, permitting it to turn thereon, and the beveled pinion 17 is secured upon the shaft 16 and meshes with a segmental rack 18 on the disk 19. This disk 19 is made with a central bearing receiving a headed screw 21, screwed into a block or enlargement 22 on rod 5. Screws 23, preferably having milled heads at their upper ends are mounted in disk 19 with their ends projected between teeth of the rack 18 (see Fig. 2,) in a position to engage the pinion 17 when the disk is turned and limit the length of the rack, or in other words, limit the rotary motion imparted to the pinion and shaft 16 by turning disk 19. The lower ends of screws 23 being in the arc traversed by the pinion 17, it will readily be seen that by lowering said screws, the rotary motion of the pinion and shaft is accordingly limited.

A rearwardly projecting arm 24, having a suitable handle 25 thereon is secured to dlsk 19 and moves between parallel horizontal curved bars 25, fixed to posts 26 on the base platform 2. The rear end of rod 5, which projects through and beyond post 7, has a friction block 27 secured thereto and supported to slide upon a platform 29, said platform being adjustably held by thumb-nuts on threaded lugs 31, the latter fixed to the lower bar 25, and by adjusting the platform 29 up and down the frictional engagement between the block 27 and the platform can be adjusted to suit conditions.

At the forward end of shaft 16 a razor blade clamp 32 is located and comprises a split cylindrical spring 33, supported in a slot in shaft 16 and exerting spring pressure upon clamp blades 32, which latter are made with diverging finger holds 34 to permit the manipulation of the clamp to grasp and release the razor blade. This spring 33 is permitted a slight pivotal movement to allow the blade to better position itself on the hone and a weight 35 is removably secured on the shaft 16 by thumb-screw 36 and carries a spring fork 37 to receive and hold the razor handle during the honing operation.

38, 38 indicate the hone supporting brackets which are adjustably secured to the base platform 2 by means of screws 39, the latter located in slots in the brackets as well as in an elongated slot 40 in the base, permitting a hone 46 to be adjusted. toward and away from the razor clamp as Well as permitting the brackets to be moved toward or away from each other to accommodate different sizes of hone. The brackets 38 are provided with short standards 41, having horizontal bearings for the trunnions 42 of cradles or brackets 43, the latter made with flanged bottoms and ends to support and hold the hone, enabling the hone to rock and position itself for the blade so as to insure the flat engagement of the blade and hone and compel a uniform wear throughout the hone as well as compel a perfect sharpening of the blade.

In Fig. 7 I have illustrated a holder 44, se cured in the razor clamp 32. This holder 44 is made with a grooved clamp 45 to receive a blade such as used with the ordinary safety razors, thus enabling the safety razor blades to be honed by my improved device.

The operation of my improvements is as follows: The razor blade is placed in a posi tion with its shank clamp between the members of clamp 32 and its handle resting in. the fork 37, the blade lying upon the hone. The oscillatory movement of arm 24 first imparts a rotary movement of disk 19, and the latter, by reason of the engagement of rack 18 with pinion 17, causes shaft 16 to turn just far enough to bring the fiat side of the razor blade down upon the hone. A continued movement of arm 24 after the blade has been turned will swing plate 9 until the screw 4 reaches the end of slot 11 therein, when the disk 3 will also turn as the blade is given the rest of its stroke. The purpose of this operation is not only to move the blade back and forth over the hone, but also to cause the blade to have a slight longitudinal movement to enable the best edge to be secured, as is done in ordinary hand honing, and as the particular mechanism for causing this peculiar motion is fully set forth in my prior patent above referred to, it is not necessary to here set forth the same in detail.

A great many slight changes might be made in the general form and arrangement of the parts described without departing from my invention, and hence I do not restrict myself to the precise details set forth, but consider myself at liberty to make such changes and alterations as fairly fall within the spirit and scope of my invention.

Having thus fully described my invention,

what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a device of the character described, the combination with a hone, of an oscillating shaft, a blade clamp carried thereby, an oscillating arm, pinion and rack connection be tween the shaft and arm, and means adapted to contact with said. pinion for regulating the extent of rotation of the pinion.

2. In a device of the character described, the combination with a hone, of an oscillat ing shaft, a blade clamp carried thereby, an oscillating arm, pinion and rack connection between the shaft and arm, and means adapted to contact with said pinion for regulating the extent of engagement of the rack by the pinion.

3. In a device of the character described, the combination with a hone, of an oscillating shaft, a blade clamp carried by the latter, an oscillating arm, an operating handle, mechanism automatically operated by the movement of said handle to turn the shaft a par tial turn at each end of its oscillating movement, without necessitating the rotation of said handle, a weight projecting at an angle to the shaft, and a razor handle holding fork on said weight.

4. In a device of the character described, the combination with a rod pivotally supported to swing in a horizontal plane, of a shaft having rotary connection with one end of the rod, a blade clamp on'the shaft, a disk having rotary mounting on the rod, an arm to turn the disk and swing the arm and shaft, a toothed rack on the disk meshing with a pinion on the shaft, and devices adapted to contact with said pinion for limiting the length of the rack and the consequent turning movement imparted to the pinion and shaft.

I shaft having rotary connection with one end of the rod, a blade clamp on the shaft, a disk having rotary mounting on the rod, an arm to turn the disk and swing the arm and shaft, a toothed rack on the disk meshing with a pinion on the shaft, and adjustable means mounted in said rack for adjusting the length thereof and regulating the consequent turning movement imparted to the pinion and shaft.

7. In a device of the'character described, the combination with a swinging shaft, a blade clamp carried by the shaft, of means for partially rotating the shaft at each end of its swinging movement, a friction block connected with the shaft and a friction latform on which said block is adapted to s ide, and means for adjusting said platform toward and away from the block for varying the frictional engagement.

8. In a device of the character described, the combination with a rotary disk, a rod pivotally connected thereto between its ends, a shaft having rotary connection with the rod at one end, a blade clamp on the shaft, a friction device on the rod, a disk having rotary mounting on the rod, a rack on said disk meshing with the pinion on the shaft, adjusting screws working through the rack for limiting the length thereof, and parallel bars between which said arm is constructed to oscillate.

9. In a device of the character described, the combination with a base, a hone supported thereon and an oscillating shaft su ported on said base of means for partial y rotating said shaft at the end of its oscillating movement, a blade clamp carried by said shaft comprising a split cylindrical spring supported in a slot in the shaft and exerting spring pressure on rigid clamping blades located in the split portion of the cylinder. V

10. In a device of the character described, the combination with a base, an elongated slot in the base, of brackets having slot and bolt connection with said elongated slot posts on the brackets, cradles supporting the ends of the hone, and trunnions on said cradles mounted in the said posts.

11. In a device of the character described, the combination with a horizontal rod having pivotal support between its ends, of a friction device at the rear end of said rod, a rotary shaft connected to the forward end of said rod, a blade clamp on said shaft, an oscillating arm having rack and pinion connection with said shaft, constructed to swing the rod on its pivot and projecting past the rear end of said rod, and a guide for said oscillating arm.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

GEORGE W. MOSBY.

Witnesses:

JOHN P. KooH, WALTER P. BIDWELL.

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