US1929463A

US1929463A - Razor blade stropper

Info

Publication number: US1929463A
Application number: US270662A
Authority: US
Inventors: Frank E Wolcott
Original assignee: Beardsley & Wolcott Manufacturing Co
Current assignee: Beardsley & Wolcott Manufacturing Co
Priority date: 1928-04-17
Filing date: 1928-04-17
Publication date: 1933-10-10
Anticipated expiration: 1950-10-10

Description

LQZQAGB 193% F. E, WOLCOTT RAZOR BLADE STROPPER Filed April 17, 1928 i H N l atented Got. 10, 1933 ice 1,929,453 RAZOR BLADE s'raorrea Frank" E. Wolcott, West Hartford, Conn; as-

Signor to The Beardsley & Wolcott Mfg. 00., a corporation of Connecticut. 1

' Application April 17, 1928. Serial No. 270,662

12 Claims.

My invention relates to razor blade stroppersh It has for its object to provide an improved stropper of the general type described and claimed in my Patent No. 1,550,861, patented August 25,

1925, wherein it is made possible for the user to adjust the rolls in an improved manner, over a wider range and with greater facility in order to vary the pressure on the blade or to take up wear. A further object of my invention is to 19 provide an improved pin and cover construction for such a stropper whereby all necessity for providing shims for the blade positioning members or for changing of these shims by the user or between adjustments, is eliminated, and whereby a wider and generally more satisfactory and expeditious adjustment is obtainable by merely varying the pressure exerted by the hand holding the stropper during the sharpening operation.

These and other objects and advantages of my improved construction will, however, hereinafter more fully appear.

In the accompanying drawing I have shown, for purposes of illustration, one embodiment which my invention may assume in practice.

In this drawing,-

Figure .1 is an end elevation of a stropper equipped with my improvement, the same being shown open with a blade'in position therein;

Fig. 2 is a transverse sectional view showing the stropper closed, the maximum depressed position of the parts also being shown in dotted lines, and

Fig. 3 is a longitudinal sectional view on line 33 of Fig. 2.

In this illustrative embodiment I have shown a stropper of the general construction of my patent mentioned, and including a frame 1 having pivoted covers 2 thereon and spaced rolls 3 carried by the frame and cooperating movable rolls 4 carried by the covers, these rolls being opera tively connected by means of spur earing, generally indicated at 5 and carried by the frame 1 and driven from a handle 5, and adapted when the covers are closed to sharpen a blade 7 suitably positioned on the spaced blade positioning members 8 of improvedconstruction, hereinafterdescribed.

Referring more particularly to these members 8, it will be noted that, as distinguished from the use of rigid stationary members 8 underlying the adjacent edges of the covers 2 and cooperating removable shims upon the base thereof, I have provided members 8 or" a depressible type. In a preferred construction, these members 8 are normally held in a projected position slightly elevating the covers2, by springs, herein in'the form of coiled springs 9 and seated in bores 10 in tubular receiving members 11 carried on the bottom of the frame 1. Herein, these members 11 are connected to the frame 1 by upwardly extending (:0 screws 12 received in apertures 13 in the bottom of the frame threaded into larger bores 14 in the lower ends of the members 11. Moreover,

it will be noted that each of the members 8 is provided with a projection, herein in the form of 5 a flange 15, on its lower end adapted to move in the bore 10 when the body of the members 8 moves in a smaller upper bore 16, the flanges-15 also acting to limit the longitudinal movement or" the member 8. I

In the use of my improved construction, it will be noted that when a blade is placed in the, position shown in Fig. 1 the blade is supported only atits edges anddirectly on the upper surfaces of the rolls 3. When the covers 2 are moved down into their initial closed position shown in full lines in Fig. 2, the rolls 4 are-brought into engagement with the rolls 3 so that sharpening may be eiiected upon rotation of the handle 6. If further pressure is desired, depression of the covers 2 will obviously result in a depression of the members 8, the coiled springs 9 then yielding and enabling the covers 2 to be further depressed to increase the pressure. Obviously, the pressure will also be limited by contact of the adjacent edges of the. covers 2 with one, another. Further, when the fingers applying the pressure are released, the covers 2 will bev moved back by. the springs 9 to their initial position shown in Fig. 2. In case the rolls are worn, it will be evident that the same operation will result in brings ing the rolls 3 and 4 closer together in such manner to compensate for this wear.

As a result of my improvement, it is made pose, sible .toobtain any desiredpressure. It is also possible to permit the user tovary the pressure as he desires. Thus, a user can at will obtain the pressure effects obtainable by a barber. More-- over, he can do this conveniently, by simply vary ing his grip on the stropper. All necessity for 100 providing the different shims described in my patent m ntioned is eliminated, and further, it is made possible to eliminate any necessity for the removal of these shims by the user, the stropper instead being furnished from the factory 195 in such form that by simply varying the pressure which he applies to the covers 2 the user can adapt the stropper to any desired pressure or compensate for wear in such manner as may be necessary. It will also be evident that although 1 1 0 a wide range of adjustment is permitted before further depression is prevented, through the oooperation of the clepressible members 8 and the engaging or abutting edges of the covers, means are provided which prevent the user from applying too great pressure. The springs 9, by their opposition to the pressure exertedby the operator, also tend to prevent too great unintentional pressure which may be unnecessary and of course return the covers to initial position as soon as pressure is removed. Attention is also directed to the fact that the new construction is adapted to be embodied in stroppers of my prior construction with a minimum of expense. It will also be noted that the particular construction illustrated is adapted to long use in service.

, These and other advantages of my invention will,

however, be obvious to those skilled'in the art.

While I have in this application specifically described one embodiment which my invention may asume in practice, it will be understood that the same is shown for purposes of illustration only, and that the invention is not limited thereto but may be modified and embodied in various other I; forms without departing from its spirit or the scope of the appended claims.

What I claim asnew and desire to secure by Letters Patent is:-

1. In a stropper, cooperating rolls including movable rolls, the latter carried on pivoted cover members, depressible spring supported slidable blade positioning pins between said first mentioned rolls normally holding said covers slightly elevated and depressible upon pressure of said covers to increase the pressure of the movable rolls thereon against their cooperating rolls, and

.means on said cover members limiting the possible depression thereof.

-2. In a stropper, cooperating rolls including movable rolls, the latter carried on pivoted cover members, depressible spring supported slidable blade positioning pins between said first'mentioned rolls normally holding said covers slightly elevated and depressible upon pressure of said -covers to increase the pressure of the movable rolls thereon against their cooperating rolls, and means on said cover memberslimiting the possible depression thereof, said means including adjacent edges adapted to engage upon depression i of said covers and depressible members.

3. In a stropper, a frame carrying spaced rolls, separately pivoted cover members on said frame each carrying a cooperating roll operatively connected to said first mentioned rolls, blade positioning means, and a plurality of upstanding spring-pressed slidable plungers between said spaced rolls and depressible by said cover members to permit an increase in pressure of said cooperating rolls.

4. In a stropper, a frame carrying spaced rolls, separately pivoted'cover members on said frame each carrying a cooperating roll operatively connected to said first mentioned rolls, and a plurality of upstanding slidable means carried by said frame each having a portion extending through a blade being sharpened and a spring portion providing a resilient support for a cover member.

5. In combination, a frame having laterally taneously stropping both sides of both edges of said blade, and spring-pressed slidable means passing through said blade for holding said i stropping means apart, the pressure on the edges of said blade being controlled by pressing said stropping means together.

7. In a stropper, a fixed stropper roll, a cooperating movable stropper roll, means for hold- .ing :a blade in stropping position, and slidable spring-pressed means passing through said blade for normally holding said rolls apart, the pressure between said'rolls' being adapted to be increased when saidrolls are pressed together.

8. In a stropper, a pair of relatively movable stropperrolls, slidable spring-pressed means for holding a blade in stropping position between said rolls, said means passing through said blade and beingyieldable in a direction perpendicular to the blade and serving to control and limit the pressure between said rolls.

9. In a stropper, a frame carrying a roll-holding member, 'a cooperating roll-holding cover member pivoted to said frame, and slidable spring-pressed blade-positioning means carried by said frame and passing through the blade to permit the pressure between said rolls to be manually varied, and means to limit said pressure.

10. In a stropper, a frame carrying a pair of spaced stropper rolls, a pair of roll-holding cover members pivoted to said frame, yieldable springpressed slidable blade-positioning means on said frame between'said spaced rolls, passing through the blade, and engageable with both of said cover members, whereby manual pressure exerted upon said cover members will vary the stropping pressure between said rolls, the pressure between said'rolls being limited by the engagement of adjacent inner edges of said cover members.

11. Ina stropper, a frame carrying-a pair of spaced stropper rolls, a pair of roll-holding cover members'pivoted on said frame, a pair of upwardly spring-pressed downwardly slidable pins carried on said frame and engageable by the adjacent inner edges of said cover members, the pressure 'between'said stropping rolls' being controlled by'the pressure exerted upon said cover members and'lim'ited in maximum amount by the engagement of the adjacent inner edges thereof.

12.'In a blade stropper, a frame carrying a roll-holding member, and a cooperating springpressed cover member pivoted to said frame, said cover member being normally held at a relative- 1y elevated position by slidable spring means passllO ing through the blade and adapted to be manu-