Rex Stropping Machine
FiledTuesday, 18th June 1901
PublishedTuesday, 5th November 1901
Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges of knives; of razors
Performing Operations; Transporting
Tools For Grinding, Buffing, Or Sharpening
Hand tools or other devices for non-rotary grinding, polishing, or stropping
Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges
Parts not referenced in the text: None
Parts not referenced in the images: None
To all whom it may concern:
Be it known that I, Herman Herder, a citizen of the United States, residing at the city of Philadelphia, State of Pennsylvania, have invented certain new and useful Improvements in Razor-Stropping Devices, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part of this specification.
My invention relates to razor-stropping devices adapted particularly to stropping or honing the short blades of so-called “safety-razors,” and is an improvement on the device described in and patented to me by Letters Patent No. 653,914, dated July 17, 1900. Said patented device therein described consists in its essential features of a pair of non-rotatable supporting-arms, an intermediate rotatable blade-roller having a spindle end and carrying actuating-gearing thereon, means to support said elements relatively to each other and to permit the blade-holder to rotate therein by means of its spindle, a segmental rack-gearing fixed relatively to the operating-handle and meshing with said gearing on the rotatable blade-holder, operating to simultaneously reciprocate the blade-holder and non-rotatable supporting-arms in an arc of a circle, means to limit the are movement of said parts, and a handle with pivotal connecting devices between the same and the device which supports the rotatable blade-holder and non-rotatable arms, the object of the combined mechanism being to present the rotatable blade-holder and supporting-arms to the strap in a longitudinally-inclined direction in imitation of the manual movement of a razor-blade on a strap, so as to thereby present the whole blade edge to the strap at each stroke and simultaneously to partially rotate the blade over its back, so as to properly present its edge to the strap for sharpening.
My improvement has for its object to more effectually carry out the purposes for which the original instrument was designed; and it consists of the combination, with a device of the character described, primarily of spring mechanism operating to automatically restore the blade-holder and supporting-arms and their mounting to normal position relatively to the handle—i. e., bring the blade-holder in alinement with the handle—when the device is lifted off and out of operative contact with the sharpening-strap; also, of a shield or guard operating to protect the actuating-gearing of the device from contact with the razor-strap, and, finally, of devices to adjustably regulate the stop mechanism which limits the are movement of the segmental rack-gearing and the blade-holder cog-gearing relatively to each other.
In the drawings illustrating my invention,
The device consists, primarily, of two pivotally-connected parts—namely, a handle
My presently-described improvements thereon consist, first, in supplying set-screws
Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is—
1. In combination in a razor-stropping device, a pair of non-rotatable arms, a rotatable blade-holder intermediate the same, means to support said parts, actuating-gearing operating to partially rotate the blade-holder and simultaneously reciprocate it in an are of a circle, a handle, pivotal connecting devices between it and the means which support the non-rotatable arms and rotatable blade-holder, operating to permit the are movement of the same relatively to the handle, and spring mechanism operating to automatically restore the rotatable blade-holder and non-rotatable arms to normal position, relatively to the handle, when the device is out of operative contact with the strap.
2. In a razor-stropping device, the combination with a frame carrying a pair of non-rotatable supporting-arms, an intermediately-mounted rotatable blade-holder carrying cog-gearing, a handle carrying a sector or segmental rack, devices between said frame and handle pivotally supporting and operating the blade-holder relatively to the handle, and a slotted shield or guard secured to the frame in which the rotatable blade-holder is mounted and arranged over the actuating-gearing thereof.
3. In a razor-stropping device, the combination with a pair of non-rotatable supporting-arms, an intermediate rotatable blade-holder, a handle, pivotal connecting mechanism between the handle and the blade-holder, gearing between said parts operating to reciprocate the blade-holder in an arc of a circle and simultaneously cause a partial rotation of the same, means to limit said are of rotation, and with means to adjustably regulate the operation of the latter.
In testimony whereof I have hereunto affixed my signature this 12th day of June, A. D. 1901.
Geo. W. Reed,
H. T. Fenton.