US1543386A

US1543386A - Razor-blade sharpener

Info

Publication number: US1543386A
Application number: US536715A
Authority: US
Inventors: Holtzman John
Original assignee: Individual
Current assignee: Individual
Priority date: 1922-02-15
Filing date: 1922-02-15
Publication date: 1925-06-23
Anticipated expiration: 1942-06-23

Description

June 23, 1925. 1,543,386 J. HOLTZMAN RAZOR BLADE SHARPENER Filed Feb. 15. 1922 I :Hi

J/ f m U 7 l/v/am ATTORNEY Patented June 23, 1925.

PATENT OFFICE.

JOHN HOLTZMAN, OF NEW YORK, N. Y.

' name-nuns snanrmmn.

Application filed February To all whom it may concern: 1 I

Be it known that I, JOHN HOLTZMAN, a citizen of the United States, and resident of the borough of Manhattan, city of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in a Razor-Blade Sharpener, of which the following is a specification. I

This invention relates to a razor blade sharpener. Its object is the production-of such a sharpener, whereby a blade to be sharpened can easily be attached and detached therefrom. A second object of the invention is, to provide a sharpener that comprises means for enclosing therewith a plurality of razor blades and the parts of a razor blade holder. A third object of the invention is the production of a sharpener that contains a blade holder with one of the parts thereof magnetized, to automatically clamp a blade thereto, when said part is swung up to remove the blade from the sharpener.

In the accompanying drawings Fig.- 1 represents a top plan view of one form of the razor blade sharpener with a portion thereof broken away, exemplifying the invention; Fig. 2 shows a bottom plan view of Fig. 1 with a portion broken away; Fig. 3 indicates a section of Fig. 1 -on the line 3, 3; Fig. 4 shows a section of Fig. 1 on the line 4, 4; Fig. 5 represents a section of Fig.

- 1 on the line 5, 5; Fig. 6 shows a section of Fig. 1 on the

line

6, 6; Fig. 7 indicates a section of Fig. 4 on the line 7, 7 and Fig. 8 shows a section of Fig. 4 on the

line

8, 8.

' The razor blade sharpener is indicated with a casing, that comprises the

side walls

20, 21 each with the curved to edge 24 and the curved bottom edge 25. top cover is indicated in its entirety by the letter A and v a bottom cover is indicated in its entirety by the letter B. The said covers are hinged to each other by means of the hinge pin 26,

J to which the

sides

20 and 21 are fastened.

A similar pin 30 connects the

side walls

20 and 21 at the other ends thereof. With the top cover A is formed a latch lip 31 that locks with the pin 30, and with the bottom cover B is formed a latch lip 32 that also lockswith the pin-30. The bottom cover B has formed therewith the partition walls 33 with the flanges 34, that form the compartment 0 with the cover B. A bottom wall D 15, 1922. Serial No. 586,715. a

bears against the bottom edges of the

side walls

20 and 21 and has formed at its ends the

loops

36 and 37 which are respectively clamped to the

pins

26 and 30. When the cover B is in its closed position the flanges 34 bear against the outer face of the bottom wall D.

To the side wall 20 are fastened the barrel shaped end cams 40, each with a cam surface 41. S indles 42 and 43 have each one end journa ed in its coacting cam 40 and the other ends of said spindles are journaled in the wall 21. I

Tubular sharpening rolls 45 are each indicated with the

end walls

46 and 47 and a disc 48 is fastened to the inner face of each roll. A pin 49 extends from each disc 48 and bears against the cam surface 41 of its coacting cam 40. The end walls 46 are slidably supported upon the cams 40 and the end walls 47 are slidably supported on their coacting

spindles

42 and 43. A strop 50 is secured to the other cylindrical surface of each of the sharpening rolls 45. A spur gear 55 is indicated with the hub 56, which is fastened to the s indle 42 by means of the screw 57. A supp emental' hub is indicated at 58 and a web 59 connects the hubs 56 and 58. A spur gear 62 is indicated with the teeth 63 and a gear segment 64 is formed .with said teeth. The teeth of the segment 64 constitute lateral extensions of 'a few of the teeth 63. The spur gear 62 has formed therewith the hubs 66 and 68 similar to 56 and 58 respectively. The hub 66 is fastened to the spindle 43 by means of the screw 69. On each of the

spindles

42 and 43 is supported a helical spring 70, one end of each of which bears against one of the discs 48 and the other ends against the

hubs

56 and 66. The tension of the springs 70 force the ins 49 against the cam surfaces 41. Pins 71 extend from. the hubs 58 and 68 and slidably engage openings in the walls 47 of the rolls 45. V H

One member 75 of a ratchet coupling is fastened to the spindle 43. An operating arm 76 has attached thereto at one end the operating handle 77 and has formed therewith at its other end the ratchet coupling member 78. supported on the spindle 43, and can 100 with the member 75.

Anopening 81. with a semi-circular bottom portion 82 is formed in the wall 21, and

ios

The member 78 is detachabli supports the journal bearing 83. A spring 84 has one end fastened to the screw pin 85 and its other end bears up against the screw pin 86. The spring 84 bears against the top 6 edge of the journal bearing 83. An opening 88 similar to 81 is formed in the wall 20. A slidable journal bearing 90 with the side guide lugs 91, the nose 92, and the operating flange 94 is supported in the opening 88.

10 The bearing 90 has formed therein a counjournal bearin 90.

'A blade hol er is indicated in its entirety by the letter E, and comprises the supporting member 100, with the journal end 101, having the flange collar 102, and the journal end 103 with the flange collar 104. A spring 107 encircles the journal end 103 and bears between flan e collar 104' and the bottom of the counter ore 95. Pins 108 extend up from the supporting member 100. A pinion 110 is fastened to the journal end 101 and is located in the same plane with the gear segment 64, which latter meshes with said pinion when the spur gear 62 is turned. A clamping member 111' preferably' magne tized and having the latch lug 112 and the openings 113 is hinged to the supporting member 100, by means of the hinge pin 114. The openings 113 can. register with the pins 108. A sprmg is wound around the ends of the hinge pin 114 and is indicated with the members 115 and- 116. The members 115 bear on the supportingmember 100 and the member 116 bears up against the clamping member 112, tending to raise the latter. A blade 120 is shown supported on the supporting member 100, with its openings engaging the pins 108, and the clamping member 111 bears on said blade toe-hold it in place. The openings 113 of the member 111 engage the pins 108. The latch lug 112 is shown in engagement with the nose 92 of the bearing 90. When the operator pulls out the bearing 90, by means of the flange 94, the'nose 92 and the lug 112 will be unlocked, and the spring having the members 115 and 116 will cause the clamping member 111 to swing up with the blade'120.

-In the com artment C can be located the parts of a sa ety" razor as indicated at 125, 126 and a plurality of blades 127 for the razor.

To operate the razor blade sharpener the slidable journal bearing 90 is pulled out, by

bearing against the inner face of the flange 94. When the nose 92 becomes disengaged from the latch lug 112, the clamping member 111 swings u under the tension of the s ring having t e members 115 and 116.

he blade 120 is now located upon the supporting member 100, with its openings engaging the pins 108. The clamping member 111 is brought to its horizontal position to bear on the said razor blade the openings 113 engaging the pins 108. While the member 111 is swung down, the journal bearing 90 is again pulled out, and after the member 111 is in its horizontal position, the bearing 90 is released and the nose 92 locks the latch lug 112 of the member 111 in place. The operator next engages the ratchet coupling member 7 8'with the member 75, and by means of the operating handle 77 the spindle 43 is turned. The revolutions of the spindle 43 are transmitted to the spindle 42 through the spur gears 62 and 55. The pins 71 revolve with the said spur gears and thereby both the sharpening. rolls 45 are turned. This causes the strops to simultaneously sharpen both edges of the blade 120. While the rolls 45 are turning they are also reciprocated, by' the coaction of the pins 49 and the cam surfaces 41 of the cams 40.

While the spur gear 62 turns, the gear segment 64 is revolved and during each revolution of the spur gear 62, the segment 64 meshes with the pinion 110. This causes the pinion 110 tomake a one-half revolution, which is transmitted to the blade holder E, and thereby the blade 120 is turned 180 degrees during each revolution of the sharpening rolls 45, and thereby both sides of each edge of the blade 120 are brought into contact with the strop 50.

After the rolls 45 have been rotated to sufiiciently sharpen the edges of the blade 120 the latter is removed from the supporting member 100,'by raising the clamping member 111. The member 111 is raised by pulling out the .slidable journal bearing 90 to unlock the nose 92 from the latch lug 112, when the spring having the members 115 and 116 will automatically raise the mem-- her 111, and the latter on account of being magnetized will raise the blade, which can then be detached.

Various modifications may the invention and the present exemplification is to be taken as illustrative and not limitative thereof.

Having described my invention what I desire to secure by Letters Patent and claim 1. In a razor blade sharpener the combination of a casing with an opening in each side wall thereof, a journal bearin ported in each of said openings, exible means bearing on the journal bearings, a blade holder journaled in said bearings, means to clamp a blade to the blade holder, a pair of spindles supported in the casing below the blade holder, a sharpening roll mounted on each spindle, and means to simultaneously actuate the shar ening rolls and coacting means between t e sharpenbe made in ing rolls and the blade holder to actuate the latter.

2. In a razor blade sharpener the combination of a casing with an opening in each of its side walls, a journal bearing supported in each of said openings, a springwith one end of each fastened to one of the side walls bearing on its adjacent journal'bearing, a blade holder journaled in said bearings, the holder comprising a supporting member and a clamping member hinged thereto to clamp a blade between them, means to lock the free end of the clamping member to the supporting member, a spring bearing between the members, sharpening rolls below and supporting the cutting edges of the blade, the springs of said journal bearings causing the blade to be maintained in yielding contact with the sharpening rolls, means to turn the-sharpening rolls, means to reciprocate the sharpening rolls and means to intermittently cause the blade holder with its blade to make half turns for each revolution of the sharpening rolls to bring both sides of said blade into contact with the sharpening rolls.

3. In a razor blade sharpener the combination of a casing with an opening in each side wall thereof, a journal bearing supported in each of said openings, flexible means bearing on the journal bearings, a blade holder journaled in ,said bearings, means to detachably clamp a blade to the blade holder, a pair of spindles journaled in the casingbelow the blade holder, tubular sharpening rolls with end walls encircling said spindles and coaxial therewith, one of said end walls of each 7 roll slidably supported "on each spindle, a barrel shaped end cam for each roll and extending through the other end wall of the roll, said cam fastened to the adjacent side wall of the casing, a disc secured to the inner face of each tubular roll, a pin,

extending from each disc bearing on the cam surface of its cam, a spur gear fastened to each spindle, a spring encircling each spindle with its ends bearing against its adjacent disc and the hub of its spur gear' on the spindle, the said gears meshing with each other, a gear segment formed with one of said spur gears, a pinion supported on the holder adapted to mesh with said gear segment, means to turn one of the spur gears, the rotation of the gear with the gear segment causing said spindle to make a half turn for each revolution of its spur gear and a strop for each roll.

Signed at the borough of Manhattan, city of New York, in the county of New York and State of New York, his lOthday of February A. D. 1922.

JOHN HOLTZMAN.