US966685A - Razor-stropping device. - Google Patents

Description

J. A. HARRINGTON.

RAZOR STROPPING DEVICE.

APPLICATION FILED NOV. 2, 1909.

I 966,685. Patented Aug. 9,1910.

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UNITED STATES PATENT OFFICE.

JOSEPH A. HARRINGTON, OF SOUTH BOSTON, MASSACHUSETTS.

RAZOR-STROPPING DEVICE.

To all whom it may concern:

Be it known that I, JOSEPH A. HARRING- TON, a citizen of the United States, residing at South Boston, in the county of Suffolk and State of Massachusetts, have invented new and useful Improvements in Razor- Stropping Devices, of which the following is a specification.

This invention relates to improvements in razor stropping devices, and the object is to provide a simple, convenient and effective stropping device embodying stropping drums with which the blade shall be alternately moved into contact and which may be actuated by rolling the drums to and fro in contact with a suitable support, the means for imparting the to and fro movement to the drums serving also to impart a to and fro movement to a suitable blade holder thereby to carry the blade into contact with said drums alternately.

The invention consists in the novel features of construction and in the combination and arrangement of parts set forth in the following specification and particularly pointed out in the appended claims.

Referring to the drawings: Figure 1 is a plan of a razor stropping device embodying my invention. Fig. 2 is a side elevation of the device. Fig. 3 is a longitudinal section taken on line 33 of Fig. 1 in the position which the parts occupy when the device is traveling toward the left. Fig. 4 is a sectional view similar to Fig. 3 except that the parts are shown in the position which they occupy when the device is traveling toward the right. Fig. 5 is a sectional view taken on line 55 of Fig. 1, looking toward the right.

Like numerals refer to like parts throughout the several views of the drawings.

In the drawings, two rotatable drums 10, 10 having leather surfaces are provided with a plurality of series of short helical grooves 11, each groove in this instance covering less than 90 of the cylinder. These rolls are journaled on shafts 12, 12, respectively, which terminate in and are secured to two plates 13, 13 and interposed between said plates and said drums are suitable means acting to retard the rotative movement of the drums which, in this instance, consist of spring washers 14 placed under tension by nuts 15 having screw-threaded engagement with the shafts 12, whereby the retarding effect of said washers may be varied. In

Specification of Letters Patent.

Application filed November 2, 1909.

Patented Aug. 9, 1910.

Serial No. 525,889.

other words, the washers 14 constitute brakes which present a certain amount of resistance to the rotation of the drums for a purpose which will appear hereinafter.

Each of the drums 10- is provided with two annular flanges 15 which are constructed to have the best possible traction on a surface on which they may be placed and which for this purpose preferably consist of rubber tires.

The parts hereinbefore described constitute a sort of truck adapted to roll on a plane surface 16 which, in practice, will be the surface of a suitable support such as a table top or a wash bowl. Mounted in this truck, as it were, is a blade holder 17 comprising a shaft 18 mounted to rock in open bearings 19 in the plates 13, respectively, and formed on or secured to this shaft are two arms 20, 20. The blade holder is provided with suitable blade engaging means preferably consisting of yielding clips 21, 21 formed on or secured to the shaft 18 and having resilient portions 22 engaging opposite faces of a razor blade 23. This blade in the present instance is provided in its ends with notches 24 and the clips 21 are pressed inwardly at 25 to form protuberances which, as shown in Figs. 1 and 5, enter the notches 24 and position the blade properly with respect to the blade holder.

Pivoted to the arms 20 is a handle member consisting of a yoke 26 having formed thereon or secured thereto a suitable handle 27 The mid-position of the razor blade and holder is shown in Figs. 1 and 2 and when the parts are in this position the blade and blade holder may be lifted from their place since the bearings 19 consist of open slots permit such removal. Such removal of the blade holder permits the blade to be readily removed therefrom, this being accomplished by grasping the blade with the thumb and forefinger and pulling the same out of engagement with the clips, the blade being inserted by a reversal of this operation.

The operation of the device hereinbefore specifically described is as follows: The device is placed on a suitable surface, the handle 27 is grasped and the same is moved from the position shown in Figs. 1 and 2 to the position shown in Fig. 3. Since the drums 10 are acted upon by the braking de vices 14, the first efl'ect of the movement of the handle is to carry the blade holder into the position shown in Fig. 3 so that the one face of the blade moved into contact with the periphery of the left hand drum and continued movement of the handle results in the drums being carried toward the left and thus rotated on their axes, the left hand drum rubbing against the left hand face of the blade and stropping that face. The movement of the handle is then reversed and the drums will be held stationary until the blade and blade holder have been carried from the position shown in Fig. 3 to the po sition shown in Fig. A with the right hand side of the face in contact with the right hand drum, whereupon continued movement of the handle will result in the drums being carried toward the right and rotated in the opposite direction. This operation is simply repeated a sufficient number of times to produce the desired efiect on the cutting edge of the blade and during the stropping operation the effect of the grooves 11 is to cause the various helical areas of the drum therebetween to act upon successive portions of the blade longitudinally thereof.

One advantage derived from employing a plurality of short helical grooves, as shown, is that the stropping surface is thereby greatly strengthened, since it will be understood that the stropping surfaces are formed by wrapping sheets of leather about cores. Another advantage is that a large number of edges of the slots are caused to act successively upon the blade, it being understood that the razor will be sufliciently soft so that the same will be somewhat compressed where it contacts with the face of the blade.

It will be understood that the tires 15 serve not only to give a good traction, but also serve to raise the drum out of contact with the surface on which the device is placed so that the drums will not pick up dust and dirt as they would otherwise do, since dust and dirt on the drums would inevitably prevent one from securing a smooth edge on the razor blade.

Having thus described my invention,what I claim and desire by Letters Patent to secure is:

1. A razor stropping device having, in combination, a carriage comprising a pair of drums, a holder for a blade movably supported on said carriage, and means directly connected to and supported on said holder for imparting thereto a to and fro movement relatively to said carriage to move said blade into contact with said drums alternately, and for imparting to said carriage a to and fro movement along a suitable support to rotate said drums alternately in opposite directions.

2. A razor stropping device having, in combination, a pair of drums, a rocking holder for a blade, and a handle pivotally connected to said holder for imparting there- 3 to a rocking movement to move said blade into contact with said drums alternately, and for imparting to said drums a to and fro movement along a suitable support to rotate said drums alternately in opposite directions.

3. A razor stropping device having, in combination, two organized separable units, viz.,a unit consisting of a carriage comprising a pair of drums, and a unit comprising a holder for a blade movably supported on said carriage, and means directly connected to and supported on said holder for imparting a to and fro movement relatively to said carriage to move said blade into contact with said drums alternately, and for imparting to said carriage a to and fro movement along a suitable support to rotate saiddrums alternately in opposite directions.

4. A razor stropping device having, in combination, two organized separable units, viz.,a.unit comprising a pair of drums, and

a unit comprising a rocking holder for a blade, and a handle pivotally connected to said holder for imparting thereto a rocking movement to move said blade into contact with said drums alternately, and for imparting to said drums a to and fro movement along a suitable support to rotate said drums alternately in opposite directions.

5. A razor stropping device having, in combination, a carriage comprising a pair of drums, means acting to retard the rotative movement of said drums, a holder for a blade movably supported on said carriage, and means directly connected to and supported on said holder for imparting thereto a to and fro movement relatively to said carriage to move said blade into contact with said drums alternately, and for imparting to said carriage a to and fro movement along a suitable support to rotate said drums a1- ternately in opposite directions.

6. A razor stropping device having, in

combination, a pair of rotatable drums, means acting to retard the rotative movement of said drums, a rocking holder for a blade, and a handle pivotally connected to said holder for imparting thereto a rocking movement to move said blade into contact with said drums alternately, and for imparting to said drums a to and fro movement along a suitable support.

7. A razor stropping device having, in combination, a pair of drums having annular flanges, a rocking holder for a blade, and means directly connected to and supported on said holder for imparting thereto a rocking movement to move said blade into,

contact with said drums alternately, and for imparting to said drums a to and fro movement with said flanges in contact with a suitable support thereby to rotate said drums alternately in opposite directions.

8. A razor stropping device having, in

combination, a frame, a pair of drums j ournaled therein, springs interposed between said frame and said drums and acting to retard the rotative movement of said drums, a holder for a blade, and means connected to said holder for imparting thereto a to and fro movement relatively to said frame to carry the blade into contact with said drums alternately and for imparting to said drums a to and fro movement along a suitable support to rotate said drums alternately in opposite directions.

9. A razor stropping device having, in combination, a frame, a pair of drums journaled therein, springs interposed between said frame and said drums and acting to retard the rotative movement of said drums, means to vary the tension of said springs, a holder for a blade, and means connected to said holder for imparting thereto a to and fro movement relatively to said frame to carry the blade into contact with said drums alternately and for imparting to said drums a to and fro movement along a suitable sup port to rotate said drums alternately in opposite directions.

10. A razor stropping device having, in combination, a pair of drums, members in which said drums are journaled, said members being provided, respectively, with bearings, a holder for a blade mounted to rock in said bearings, and a handle member pivoted to said holder for imparting thereto a rocking movement to carry said blade into contact with said CllLll'l'lS alternately, and for imparting to said drums a to and fro movement along a suitable support to rotate said drums alternately in opposite directions.

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

JOSEPH A. HARRINGTON.

Witnesses:

LOUIS A. JONES, SADIE V. MCCARTHY.

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