US2598589A

US2598589A - Manual sharpening implement

Info

Publication number: US2598589A
Application number: US187387A
Authority: US
Inventors: Blackwell K Murchison
Original assignee: BESSIE F MURCHISON
Current assignee: BESSIE F MURCHISON
Priority date: 1950-09-29
Filing date: 1950-09-29
Publication date: 1952-05-27
Anticipated expiration: 1969-05-27

Description

y 1952 B. K. MuRcHlsoN 2,598,589

v MANUAL SHARPENING. IMPLEMENT Filed Sept; 29, 1950 2 SHEETSSHEET 1 I I HOME I INVENTOR. BLACKWELL K. MURCHISON ATTORNEY B. K. MURCHISON MANUAL SHARPENING IMPLEMENT May 27, 1952 2 SHEET SSHEET 2 Filed Sept; 29, 1950 ATTORNEY Patented May 27, 1952 MANUAL SHARPENING IMPLEMENT Blackwell K. Murchison, Brooklyn, N. Y., as-

signor, by mesne assignments, to Bessie F. Murchison, Brooklyn, N. Y.

Application September 29, 1950, Serial No. 187,387

This invention relates to new and useful improvements in manual sharpening implements.

The dominating object of this invention resides in the construction of a manual sharpening implement which has one set of spaced sharpeners and a cooperative set of meshing guides, or meshing sharpeners, associated with means by which the sharpeners, or guides, may be moved to various relative positions so that portions of the sharpeners are exposed to use during the use of the implement. With this construction it is possible to change the meshing relation of the sharpeners, or sharpeners and guides, so that fresh portions of the sharpeners are exposed to use when desired. The invention contemplates a simple and novel adjustment by which the sharpeners, or sharpeners and guides, may be adjusted as stated.

Another and important feature of this invention resides in replaceably mounting the sharpeners in position so that worn sharpeners may be removed and replaced as required.

Another and important feature of this invention resides in providing the sharpeners with working faces which are arranged at selected angular positions. In accordance with this invention the angles may vary from a few degrees upwards to 90 or more, if so desired. With this 7 Claims. (Cl. 51-214) construction the sharpening implement may be designed to sharpen knives, cleavers, scissors, razors, and many other articles.

Another object of this invention resides in providing the sharpening implement with one set of spaced sharpeners and meshing guides in those implements intended to sharpen one face of an object at a time, and to provide two sets of spaced meshing sharpeners in those implements intended to sharpen two faces at a time.

It is also proposed that the sharpeners be constructed of various types and kinds of sharpening materials containing various types and kinds of grits of various fineness or coarseness. This large selection of grits makes it possible to use the sharpening implement to grind, hone or in other ways condition the edges of articles to be sharpened or treated. More particularly, it is contemplated that each sharpening implement be provided with different sharpening sec.- tions, one containing sharpeners suitable for grinding, and the other containing sharpeners suitable for honing, or in other ways finishing or conditioning edges.

Still another object of this invention resides in embodying the mesh move principal of spaced and meshing sharpeners, or sharpeners and guides, into sharpening implements of various designs, as for example, implements having fingers grips, or having hand grips, or having more than one finger or hand grip.

Another object of the invention is the construction of a device as described which is simple and durable and which may be manufactured and sold at a reasonable cost.

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawings, and to the appended claims in which the various novel features of the invention are more particularly set forth.

In the accompanying drawings forming a material part of this disclosure:

Fig. 1 is a plan view of a manual sharpening implement constructed in accordance with one form of this invention.

Fig. 2 is a sectional view taken on the line 2-2 of Fig. 1. I

Fig. 3 is an end view of Fig. 2 looking from the left hand end.

Fig. 4 is an end View of Fig. 2 looking from the right hand end.

Fig. 5 is a front elevational view of Fig. 2.

Fig. 6 is a front elevational view of another manual sharpening implement constructed in accordance with another form of this invention:

Fig. '7 is a fragmentary plan view looking in the direction of the line 'l--'l of Fig. 6.

Fig. 8 is a front elevational view of still another manual sharpening implement embodying another form of this invention, one half of this view being shown partly in section to disclose the interior construction.

Fig. 9 is an end view of Fig. 8 looking from either end.

Fig. 10 is a fragmentary verticalsectional view taken on the line l0l0 of Fig. 8.

The manual sharpening implement, as illustrated in Figs. 1-5 inclusive, includes a pair of members I0 and H slidably connected with each other to move in a longitudinal line towards and away from each other. These members are slidably connected with each other by a stud .l2 which is fixedly attached to the member I0 by a pin l3 and which engages through a tubular bearing I 4 fixedly mounted on the member H. A plurality of spaced sharpeners l5 are mounted on one of these members, for example, the member H. These sharpeners [5 are arranged in spaced positions spaced transversely of the line of sliding of the members I0 and l l. A-plurality of guides I6, or other sharpeners. IE, are mount}:

knife engaging between the parts [5 and 23 in sharpening position. When this knife H is moved back and forth across the parts i5 and 16 its edge will be sharpened or honed, or conditioned, depending upon the nature of the parts I5 and I6, specifically, whether these parts are grinding elements, honing element, other conditioning elements, or guiding elements.

7 The members I8 and 5| are associated with means by which said members may be moved into selective positions towards and away from .eaeh other along the longitudinal line of sliding of the members it and H for controlling the sections of the sharpeners l5, or L5 and 45, en-

.gaged by an object such as the knife ii when the implement is being used. Said means for moving said members IQ and II includes an expansion spring l9 coaxia-lly mountedon the stud 12,, and having its ends engaging in

recesses

26 and 2| formed in-th-e adjacent faces of the members-t0 and H. A nut 22 threadedly engages on the end of the stud l2 and indirectly controls the compression of the spring 19. .A handle 23 by which the implement may be conveniently handled is connected with the member ii. Studs 24 for connecting the handle 23 with the member H are fixedly mounted either on the member I l or on the handle .23 and slidably-engage in aligned.

openings either on the handle 23 or the member I], depending upon which of' these parts the studs are fixedly mounted. The handle 23 has a cutout 25. into which the nut 22 is set. The nut'22 acts against a portion of the handle 2% and in this way moves the member H towards the member l0, when the nut is turned in one direction, or permits the spring 19 to move the member ll away from the member Iii when the nut 22 is turned in the other direction. a 1 The members H3 and H are of identical shape, each having a wide section '25 anda narrow section 25 These sections extend from the centers of the members outwards. However, the members id and H are turned-so that the wide section 25 of the member if! is at the topand is opposed to the narrow section 26 of the member I I. The wide section 25 of member His provided with a pair of projecting studs-2i which engage against the sides of the narrow section 25 of the member l!) to hold the members 'I 8 and II from pivoting on the stud 12 as an axis. In the particular sharpening implement illustrated the. Wide sections 25 are provided with two of thesharpeners or N, while the narrow sections, 26 are provided with one of the sharpeners tier [6, These partsl5 and IE mesh with each other asmay be noted by examining Figs. 1. .2 and 5.

The parts is and it are removably mounted on the members H and at. More specifically, the members H and It are formed with grooves 28 into which the parts l5 and I6 are set. Small screws 2-9 threadedly engage the members i0 and It and extend into the grooves 28 and against enact the edges of the parts I5 and 5 'for clamping-these parts against the other sides of the grooves 28. The screws 29 thus serve to releas- 4 ably hold the parts l5 and IS in position. When these parts become worn they may be removed and replaced. The handle '23 is provided at the top with the word Grind, indicated by reference numeral 38, and at the bottom with the word Hone, indicated by numeral 3|. These legends indicate the nature of the sharpeners l5 and H5. The sharpeners adjacent the legend .Grind contain coarse grit so that they grind an object engaged against these sharpeners, while the sharpeners adjacent the legend Hone contain ,fine grit so that they hone or condition an object engaged against them.

The operation of the device may be under stood from the following:

The implement is held by the handle 23. This handle 23 is relatively small so as to be capable of being held by the fingers. A knife or other object to be sharpened is merely moved back and forth between the adjacent faces of the sharpeners liand L6, or the adjacent faces of the sharpeners l5 and the-guides 1.6 in the event-that the parts 15 are guides and not sharpening :elements. The parts I5and it have adjacent faces which are .at fixed angular positions relative to each other. angle of the bevel .of the knife .or other object which is to .be sharpened. It is proposed that the sharpening implements be provided with parts l5 and 15 of selected angular positions. Thus one may purchase an implement with the sharpeners l5 and I5 .at an angular'posit-ion for sharpening knives. Or .an implement may be purchased with the angular position for sharp,- .ening cleavers. Sharpeners may also be .provided with an implement, to be replaced for the parts l5 and 16 for providing difierent angles of sharpening. These angles may vary from a few degrees for razors to very wide angles for cleavers and other objects.

It. should be noted by examining Fig- 2 that the knife I! engages. the sharpeners 1'5 and 16 at the junction between their crossing faces. When this junction becomes rutted. after some use it is merely necessary that the adjustment nut 22 be turned in one direction or the other soas to move the sharpeners l5 and .15 together or apart so' as to change'the junction between these sharpeners so that new sections of the sharpeners are now available for use. The adjustment nut 22 .may be controlled so that the entire working surfaces of the sharpeners *[5 and I6, are utilized at one time or another during the use of the implement. When the sharpeners-l5 and it become thoroughly worn they .are replaced.

'InjF'igs. 6 and '7 a modified form of, the invention has been disclosed which distinguishes from the prior form in several ways, particularly, this implement is. provided with a hand grip by which it may be. gripped and handled. \One end of. thisv hand grip is provided with the members l6 and. H. These 19 and H members. are associated with the other parts as shown iniFigs. 1-5 inclusive. The operation of this sharpening implement is identical to the prior form.

The, other end of the handle 35 is provided with an implement of .a somewhat different construction. This construction includes a pair of members 35 and 31's1idably connected with eachfother to move in a longitudinal. line towards and away from each other. One end of the handle 351s connected with the member 35.. This is accomplished by studs 38 mounted eitherupon the handie 35 or on the member 35 for engaging QRBi1- ings in the other adjacent part. The members These angular positions control the 36 and 31 are slidably connected with each other by studs 39 which are mounted on one of these members and engage in complementary openings in the other of these members to control the longitudinal sliding thereof. mounted on the member 31 by a pin 4| and engages through the member 36 and through a bearing 42 fixedly mounted on the member 36. This stud 46 also extends through the handle 35. Stud 46 is provided with an adjustment nut 43 which threadedly engages on the end portion of the stud 46. An expansion spring is coaxially mounted on said stud 46 and acts between the adjacent faces of the

members

36 and 31 for urging them apart. sharpeners 45 are mounted on one of said members, namely, the member 31. These sharpeners are spaced transversely of the lineof sliding of the

members

36 and 31. Guides 46 are mounted or fixed upon the other of said members, namely,

the member 36 and engage in the spaces between the sharpeners 45 for guiding an object to be sharpened across sections of the sharpeners 45. The sharpeners 45 are mounted in grooves 41 formed in the member 31. Screws 4B threadedly engage the member 31 and engage one of the ends of the sharpeners 45 for releasably holding the sharpeners in position. The sharpeners may therefore be removed and replaced when they become worn.

The sharpeners 45 have working faces at a selected angle. For example, this angle may be such as to coincide with the angle on the blades of a pair of scissors. The dot and dash lines 56', in Fig. 6, indicate one of the blades of a pair of scissors engaged against the top sharpeners 45. The beveled edge of the blade 56 engages the sharpeners 45, while the straight side of the blade engages the end of the guide 46. The scissor blade 56 may be drawn back and forth over the sharpeners 45 for sharpening or conditioning the edge of the scissor blade. The handle 35 is imprinted with legends Grind and "Hone at the corners to indicate whether the adjacent sharpeners are for grinding or honing.

The operation and use of the above sharpening implement may be understood from the following:

Knives, cleavers and other similar articles may be ground, honed and conditioned upon the sharpening implement on the left end of the handle 35. Scissors and other similar objects may be ground, honed, and conditioned on the sharpening implement on the right hand end of the handle 35. The

adjustment nuts

22 and 43 may be turned in one direction or the other to vary the sections of the sharpeners engaged by the objects during the sharpening or conditioning operation. In other respects the operation of this form of the invention is identical to the prior form.

In Figs. 8-10 inclusive another form of the invention has been disclosed which distinguishes from the prior forms merely in construction. The operation and use of this implement is substan tially the same as in the other forms. This implement includes a pair of members 56 and 5| slidably connected with each other to move in a longitudinal line towards and away from each other. A rod 52 is engaged through these members. This rod has a central square section 53 which engages square openings 54 in the members 50 and 5| by which the members 56 and 5| areslidably connected in a non-rotative manner. A handle 55 is connected with each of the mem- A stud 46 is fixedly A plurality of spaced bers 56 and 5|. These handles 55 are in the form of tubes through which the ends of the rod 52 pass. A plurality of spacedsharpeners 56 are mounted on the members 56 and 5|. These sharpeners are spaced transversely of the line of sliding of the members 56 and 5|. The sharpeners 56 on one or the other of the members 56 and 5| may be replaced with parts of identical shape but comprising guides.

The members 56 and 5| are associated with means by which they may be moved towards and away from each other along their longitudinal line of sliding for controlling the degree of meshing of the sharpeners 56 of the members 56 and 5|. This means includes an expansion spring 51 mounted on the square section 53 of the rod 52 between the adjacent faces of the members 56' and 5|. The ends of the rod 52 are formed with threads 58. Nuts 59 are rotatively mounted on the ends of the tubular handles 55 andthreadedly engage the threads 58. One or both of the nuts 59 may be turned for forcing the members 56 and 5| towards each other, or for permitting the expansion spring 51 to separate the members 56 and 5|. 1

The sharpeners 56 are mounted in grooves 60 formed in the adjacent faces of the members '56 and 5|. Small screws 6| are mounted on the members 56 and 5| and engage the ends of the sharpeners 56 for releasably holding them in position. The members 56 and- 5| are imprinted with the words Grind and Hone (see Fig. 9) to indicate the nature of the adjacent sharpeners 56.

The operation of this implement may be understood from the following:

A knife or cleaver or other object to be sharpened is moved back and forth between the angular faces of the sharpeners 56 as seen in Fig. 8. When the working portions of these faces become worn the nuts 59 may be turned so as to move the members 56 and 5| either together or apart, and in this way change the junctions of the working faces of the sharpeners 56.

While I have illustrated and described the preferred embodiments of my invention, it is to be understood that I do not limit myself to the precise construction herein disclosed and the right is reserved to al1 changes and modifications coming within the scope of the invention as defined in the appended claims.

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

1. A sharpening implement, comprising a pair of spaced members having on their adjacent faces a plurality of meshing sharpeners and guides positioned above and below the centers of said members, a stud mounted at right angles through said members and at one end connected with one of said members, a nut threadedly engaging on said stud and selectively controlling the distance that said spaced members may move part for providing relative unyielding positions of mesh of said sharpeners and guides, and resilient means urging said members apart into said unyielding positions of mesh.

2. A sharpening implement, comprising a pair of spaced members having on their adjacent faces a plurality of meshing sharpeners and guides positioned above and. below the centers of said members and said meshing sharpeners and guides having adjacent working surfaces diverging in the direction which extends from the centers of said members radially outwards, a stud attached one end to theeenterof one of said members and extending :aztc ri-ght angles to said members vandsslidaibly "passing through the center of the other of said members so that said members may move-in .a longitudinal line towards and away fromeeach other, and a nut xthreadedly engaging on; .said .stud :and. selectively controlling the; distance thatsaid spaced members may move apart for providing relative. unyielding positions .of mesh; of said :sharpeners and guides .3. :Ausharpening; implement, comprising a pair otspaiced members having on thillfidj acentviaces a plurality of meshingrsharpeners and guides positioned above and below the centers of said members: and gsaidtmeshing sharpener andguides having adiacent working surfaces diverging in the direction winch extends from the acefltelS .of saidznembers radially outwards; a .stud attached at one end-to the center of one .of said members and-extending at right angles to said members and slidably passing through the ,center :oi the "otherof said members so that said members may more in a longitudinal line towards :and away 4. A sharpening implement as defined in claim 0 Number 8 3, in which pinsengage :said-ihandle .and the adjacent one of said members iior holding said handle from turning about said :stud.

5. A sharpening implementaas definedriniclaim 2,111 which tpins engage said members iorrholding them from turning relative to each anther.

6. A sharpening implement as definedin claim .3, in which a tubular bearingis-mounted on one of said members and engages in an opening in said handle, and said stud passes through said tubular bearing. r

7. A sharpening implement-as defined in clalim -1, in which said stud :has a square section upon which said members are slidably mounted.

BLACKWEIL K. MURCI-IISON.

REFERENCES 'GIT ED Country Date The Netherlands. Feb. 15,1933

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