US1051817A

US1051817A - Razor-sharpening machine.

Info

Publication number: US1051817A
Application number: US59946210A
Authority: US
Inventors: Levi J Odell
Original assignee: Individual
Current assignee: Individual
Priority date: 1910-12-27
Filing date: 1910-12-27
Publication date: 1913-01-28
Anticipated expiration: 1930-01-28

Description

L. J. ODELL RAZOR SHARPENING MACHINE. APPLIOATION FILED 11110.27, 1910,

Patented J an. 28, 1913.

2 SHEETS-SHEET 1.

.ZeviJOda L. J. ODELL.

RAZOR SHARPENING MACHINE. APPLIUATION FILED DEC. 27, 1910.

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Patented Jan. 28, 1913.

LEVI J. ODELL, 01 GLENIDORA, CALIFORNIA.

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Specification of Letters IZatent.

Application filed December 27, 18110 Hartcnt ed Plan. 211?, ifitft. Serial No. 539,462.

To aZZ ell/tom it may concern Be it known that I, LEVI J. ODELL, a citizen of the. United States, residing at Glen-- dora, in thecounty of Los Angeles and State of Ca ifornia, have invented new and useful Improvements in Razor- Sharpening Ma chines, of which the following is a specification.

This invention relates to improvements in machines for shopping razor blades, and has reference more particularly to that class ofdolades commonly employed with safety razors and an important object of the invention is the provision of a machine that will quickly and accurately resharpen such blades in a uniform manner, the proper provision being made forthe pressure of the blades against the stropping members during the operation.

It is a further object of the invention to rovide a mechanism in which a number of blades may be applied to the stropping mechanism at a time, the mechanism being such that any one or more of the blades may be removed and replaced in the machine or others substituted therefor without interfering with the operation of the machine or the sharpening of other blades.

In the drawing forming a part of this specification, Figure l is a side elevation of the improved stropping machine, looking at the same from the side upon which the blades are inserted. Fig. 2 is a transverse sectional view taken upon the lines 2-2 of Fig. 1. Fig. 3 is a detailed view partially in section and partially in elevatiousliowing the mounting of the bar or member which removably supports the razor blades and their holders. Fig. 4 is a top plan view of a pprtion. ofthe machine one end thereof beingbroken away. Fig. 5 is an enlarged detall view of one otthe blade holders, a portion thereof being shown in section and a portion in elevation. Fig. 6 ,is a transverse sectional view taken upon the line 6-6 of Fig. 5.

In the drawin the preferred embodiment of the invention. as been illustrated and the said invention w ill now he more particularly described,referencebeing had'to said drawing-in-whieh 10 indicates a frame, 11 and 12 upper and lower stropping rolls or cylinders and 13.,a blade carrying bar which is journaled shits ends in the frame 10, suitable journal bearings let being provided in the-end uprights of the frames. The journals 15 of said bar 13 are preferably formed upon upwardly projecting extensions 16 formed at each end of" the said bar so that the bar will always hang below the journals and thus remain in proper position for bold ing the razor blades and their holders.

The stropping rolls l1 and 12 are of any" desired construction being usually made hollow and of a suitablclength to extend opposite a number of razor blade holders carried by the bar 13. Their outer surfaces are formed with any suitable sharpening or grinding surface for placing an edge upon the razor blades that are pressed against them. The said

rollers

11 and 12 are placed apart and are usually mounted one above the other as clearly shown in Fig. 2. The

shafts

17 and 18 of the said iollers pro ect beyond their hearings in the frame '10 at one cud or the other as found most desirable, and driving pulleys as 19 and 20 are applied thereto. The pulley .19 of the roller 11 is usually at one end of the machine while the pulley 9.0 of the roller 12 is at. the other end. These pulleys 20 are usually grooved and thus adapted to be driven by any ordinary or desired belting not shown. The

rolls

11 and 12 are driven in the direction indicated by the arrows in Fig. 2 so as to turn away from the blade or blades inserted bet-ween them. The said bar 13 is provided with a number of brackets 21 which are preferably U shaped in cross section, and are riveted or otherwise secured to the said bar 13 at suitable intervals thereon. The upright portions of the brackets 21 form side standards which are provided with holder receiving recesses 22 which open outivardly from the

rollers

11 and 12, as shown in Fig. 2.

To one side of each bracket 21is a stand ard or binding post 23 having a lateral hole or tlDOlblll'QQri pas ug through the same for receiving a securing pin carried bythe blade holder as will be hereinafter described. Set or clamping screws 25 are threaded into he upper ends of the said binding posts 23 and are capable of being screwed down to the holes i tfor clamping the portions of the holders that; are inserted therein. The said clamping screws may be provided with any desired heads as for instance flattened thumb engaging heads as 26 or pivoted short handles 27 ,by which the screws ,may be turned. Where the binding posts are arranged in close proximity to ach other as shown at the center of the machine, the pivoted handles 27 are preferred, as they do not interiere with each other.

The blade holders are formed with shank portions 28 having a bore 29 extending inwardly from the end thereof. A spindle 30 extends into said bore at one end while its outer end is flattened and has secured to it by means of a screw rivet or other suitable securing means the

spring jaws

31 and 32 of the blade gripping means.

The outer ends of the jaws 31 ancl 32 are usually broadened as at 33 to fit upon the razor blade and firmly grip the same as clearly shown in the drawing; The gripping plates 31 and are brought together by means of a thumb screw 34 and a nut 85 applied thereon as clearly indicated in Fig. 5. The nut 85 is prevented from turning by engaging an upturned lug 36 struck from the plate 32.

The spindle 30 is loosely mounted in the bore 29 so that it has a swivel action therein, and the blade carried thereby may accommod'ate itself to any unevenness upon of sufiicient size to permit a proper amount of swivel action in the spindle 30 with respect to the shank 28, as will be clearly understood by reference to Fig. 6. The said shank 28 of the blade holder is carried by a sleeve 39 which is clamped to the shank.

by a set screw as 40 and is provided with lateral projecting trunnions 41, there being one trunnion on each side of the said sleeve. The trunnions 41 project in such a manner that they may be readily slipped into the recesses 22 when the blades are to be in sertedbetween the stropping rolls; The said trunnions 41 slide into and out of posi tion on the brackets 21', upon an elongated bearing'edge 42 upon each standard of each of said brackets.

In order to hold the shank 28 in place under a spring action, a clip 43 is applied to its end and projects laterally therefrom a sulilcient distance to carry a spring securing pin 44 which extends approximately ara-llel with the said shank '28 as clearl p sheen in the drawing. The pin 33 is made of suiiicient length to engage and project through the apertures 24 in the binding posts when the trunnions 41 of the holders are placed in position in the recesses 22,

and by turning the clamp screws 25 the holders are firmly held in place.

In order to bring the blades successively in gagement with the

rollers

11 and 12 the ournal bar l3is adapted to be rocked upon its journals 15 by'means of a'leve projection 45 formed thereon. 'The lever 45 is connected by means of a suitablelink 46 with a bell crank 47 which is pivoted to the frame 10 at 48. The lower end of the said link 46 isusually connected with the said bell crank by means of an intermediate link 49'having pivoted engagement with both the said lever and th /said link and thus permitting of a free and easy articulation of the parts. -0ne end of the bell crank lever 47 projects upwardly and is provided with an ai'iti-friction roller 50 which fits into a cam path 51 formed upon a cam 52 which is secured to a shaft 53. The shaft 53 extends parallel to the strepping rollers and is usually journaled in the frame 10 below the bar 13. The roll 53 is provided with a driving pulley 54 by which it may be driven at a proper rate of speed for causing the rocking of the plate 13 up and down in, forcing theblades of the blade holders first into. engagement with one stropping roll and then with the other. 7

The use of the machine will be readily I understood from the above description. The stroppin'g rollers are kept in continu- 0115 motion and after placing the blades betweenthe plates 81 and 32 and clamping them in position, the holder is put in place by sliding trunnions '41 into the recess 22 of one of the brackets 21, the pin 44 being at the same time inserted in the aperture 24 of the adjacent binding post. The pin 44 is then secured iii-place, by turning the clamping screw 25. This can be readily done while the bar 13 is being rockedior forcing the blade against one of the rollers. By loosening the clamp screw 25 the holder can be easily taken from position. Any

number of holders may be in place atthe ping rollers arranged opposite to each other,

arocking bar extending parallel with said. rollers, a plurality of blade holders adapted to carry blades to be stropped, and arranged v to project laterally from said bar to points between said rollers, and means mounted upon said bar into which the blade holders may he slipped without stopping the rocking of the said bar, and yielding means for holding the blade holders v on said bar for presenting the blades bet-ween the said stropping rollers.

2. A stroppingmechanism comprising oppositely arranged parallel stroppingro'l'lers,

an elongated rocker bar mounted parallel thereto and opposite the space between the rollers, blade holders having lateral supporting projections, means carried by said bar for receiving the said lateral projections of the blade holders, the said blade holders being capable of withdrawal from their holding means while others are held in place, spring means for holding the said blade holders on said bar and means for rocking the bar to carry the blades held by the holders against the stropping rollers.

3. A stropping mechanism comprising an elongated stropping roller, a rock bar mounted parallel therewith and having recesses for receiving blade holders. blade holders having projections thereon adapted to be slipped into said recesses when the bar is rocking or stationary, the said blade holders carrying the blades to be sharpened against the roller, and spring means connecting the blade holders with said bar and causing them to press the blades against the roller and means for rocking said bar.

4. A razor stropping mechanism, comprising parallel stropping rolls, a holder carrying bar extending parallel with said rolls and jo-urnaled so as to move with respect thereto, a plurality of blade receiving seats mounted upon the said bar, blade holders having supporting projections adapted to be inserted in .raid seats. and preventing the holders from turning axially, the said blade holders being thus adapted to be thrown between the stropping rolls, ineans for rocking the said bar for pressing the blades against the stropping rolls and spring rods for locking the holders on said bar and causing them to press the blades against the stropping rolls. and means for clamping the said spring rods in position.

5. A razor strapping mechanism comprising stropping rolls a journal bar arranged opposite thereto. U shaped brackets secured to the said bar and having standards with recesses opening outwardly. blade carrying holders having trunnions capable of titting in said recesses, and means of securing razor blades upon the said holders. the rocking of the journal bar operating to press the said blades against the stropping rolls successively.

6. A stropping mechanism comprisingparallel stropping rolls. a rocking bar extending parallel thereto. brackets secured to the said bar for receiving blade holders. the said brackets having ont-wa rdlV opening rccesses, blade holders adapted, to be inserted in said brackets and having means for 'engaging said recesses, and means for holding the blade holders' upon said bar with a spring tension whereby the rock-ing of-thc bar will cause the blades carried by the holders to be pressedagainst the stropping rolls.

7. A razor stropping mechanism comprisin power driven stropping rolls, a space bemg left between the said rolls, razor blade holders adapted to extend into said space between the rolls each having a spindle, shanks for holding the said spindles with a swivel action. retaining means for movably holding the spindles in conjunction therewith, a rocking means for supporting the said razor blade holders and causing them to apply the blades to the stropping rolls underconsiderable pressure.

8. A stropping mechanism comprising a plurality of stropping rolls. razor blade holders adapted to press the blades against each of said rolls. each of said. holders comprising a hollow shank. a swivel blade gripping means mounted therein, trunnion projections secured to the shanks, spring securing means also secured to said shanks. a rocking bar having brackets for engaging the trnnnions ot' the blade holders. binding posts for engaging the said spring securing means. and means for movablv clamping the said spring securing means for holding the blade holders in position on the rocker bar.

9. A stropping mechanism comprising oppositely mounted stromuing rolls. a rocking bar journaled parallel therewith and opposite the space betivcen said rolls. removable blade holders mounted on said bar, means for holding the blade holders upon said bar under spring tension, a bellcrank lever connected with said bar for rocking it cam for operating the said bell crank lever, and means for rotating the cam.

10. A stropping device comprising oppositel mounted stropping rolls, a rocking bar journaled parallel therewith and opposite the space between said rolls, a torsional spring holding means mounted upon said bar and adapted to carry blades to be stropped, and means for rocking the bar for pressing said blades against the stropping rolls.

11. A blade sharpening machine including a pair of sharpening rolls. a rocking blade carrier, a blade carrying plate applied to the blade carrier and formed with lugs. a.

blade holder pivoted upon the l ugs, and a spring engaging the blade holder tor holding the blade in a yielding engagement with the rolls.

In witness that I claim the foregoing -l have hereunto subscribed my name this 17th day of December 1910.

[1. 1T. \Vitnesses:

EDMUND A. Srnausn, Emma R. POLLARD.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of .Pateuts, Washington, I). C.