US2911857A - Honing device for slicing blade - Google Patents

Honing device for slicing blade Download PDF

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US2911857A
US2911857A US589745A US58974556A US2911857A US 2911857 A US2911857 A US 2911857A US 589745 A US589745 A US 589745A US 58974556 A US58974556 A US 58974556A US 2911857 A US2911857 A US 2911857A
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honing
plate
edge
housing
blade
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US589745A
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Garapolo Orlando
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Wilson and Co Inc
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Wilson and Co Inc
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B3/00Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
    • B24B3/36Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades
    • B24B3/40Processes or apparatus specially adapted for sharpening curved edges

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  • This invention relates to a honing device for slicing blades, and particularly to a device for honing the cutting edge of a spirally shaped blade, such as a bacon slicing knife, without removing it from its housing.
  • Bacon slicing knives operate at substantial speed, and the bacon must be lsliced uniformly thin. Accordingly, the cutting edge of the blade must be kept constantly in proper condition for eiiicient slicing. Heretofore these blades have been honed by hand, but the curvature and the transverse angularity of the cutting edge have cornbined to make hand honing a slow and laborious process. In addition, a great degree of skill is required to properly hone an angular edge curved in the spiral shape of bacon slicing knives.
  • a honing tool in the form of a pin is mounted at the angle required, and is held against the cutting edge of the blade'by a mechanical device. No skill is required to hold the honing pin against the edge at the proper angle.
  • Guide means for insuring proper alignment of the honing device is ⁇ ⁇ permanently secured to the blade housing frame out of the way of the knife. The guide means facilitates proper positioning of the honing device so that it may be applied quickly to the blade housing frame and readily removed after the edge of the slicing blade is properly honed.
  • FIG. 1 is a front elevational view showing a knife rotatably mounted in a housing, with the honing device of the ⁇ present invention detachably mounted on the blade housing frame;
  • Fig. 2' is a cross sectional view, taken along the line Fig. '3 is -a fragmentary perspective view of the blade housing frame, with the guidebar for the honing device secured thereto; v
  • Fig. 4 is a detail perspective view of a honing device embodying the invention.
  • Fig.,5 is a cross sectional view, taken along the line 5-5 of Fig. 1;
  • Fig. 6 is an enlarged fragmentary perspective view of the vhoning device
  • Fig. 7 is an end elevational view of the honing device
  • Fig. 8 is a cross sectional view, taken along the line 8 8 of Fig. l, but omitting the blade housing frame;
  • Fig. 9 is a cross sectional view, taken along the line 9 -9 of Fig. 7, but showing the honing pin in engagement with they cutting edge of a slicing blade.
  • the reference numeral V2 indicates a bacon slicing knife mounted on a rotatable shaft 3 adjacent the frame 4 of a suitable housing.
  • a motor (not shown) rotates knife 2 in a vertical plane in clockwise direction, as seen in Fig. 1.
  • the knife is shaped like a spiral so thatits cutting engagement with rlice a slab of bacon fed transversely of ythe knife by any suitable mechanism is progressive from the initial engagement until the slice is completely severed. It will be understood that the word spiral is used generically, and that the honing device may be used with cutting blades of any shape.
  • the knife is also curved in cross section, as shown in Figs. 8 and 9.
  • the outer edge 5, formed by the intersection of angular surfaces 6 and 7 is very thin, and the surface 6 must be honed to keep the edge extremely sharp.
  • a guide bar 8 is rigidly ysecured -to ⁇ the housing frame 4 by screws 9.
  • Guide bar 8 extends horizontally and its inner end is spaced from shaft 3 a distance approximately equal to the distance from shaft 3 to the portion of the cutting edge closest thereto.
  • the thickness of guide bar 8 is less than the distance between cutting edge 5 and the front surface of blade housing frame 4 to prevent the guide bar from interfering with the rotation of slicing blade 2.
  • the honing device comprises a pair of honing plates 10 and 11, a honing tool or pin 12, a honing pin holder 13, a spring pressed plate 14, a center plate 15, a spacer plate 16, and a holding plate 17.
  • Honing plates 10 and 11 are secured to plate 14 by screws 14 (Fig. 9).
  • Plates 15, 16 and 17 are Varranged with one end of each flush with the others and are rigidly secured together by means of screws 18.
  • Plate 16 is shorter than plates 15 and 17 and provides a space between them beyond its -inner end.
  • 'I'he honing device is adapted to straddle one edge of housing frame 4 with the inner end of ⁇ spacer plate 16 abutting the edge, and plates 15 and 17 adjacent opposite surfaces of the housing frame.
  • Spacer plate 16 is slightly thicker than housing frame 4 to facilitate movement of the honing device relative to the housing frame so that the honing device may be easily positioned.
  • center plate 15 abuts the upper edge of guide bar 8
  • spacer plate 16 abuts the peripheral edge of housing frame 4
  • the honing device is secured in place.
  • a screw 19, threaded through holding plate 17, is tightened against therear surface yof housing frame 4 to secure the honing device in place.
  • Screw 19 is preferably provided with a wing lhead 20 to facilitate manual turning of the screw.
  • Plate 14 is secured to center plate 15 by means of screws 21, 22 and 23.
  • Plate 15 is provided adjacent one end with a threaded aperture 24 into which screw 21 is threaded.
  • Plate 14 is provided with a smooth aperture 25 to receive the shank of screw 21.
  • the front end of aperture 25 is counterbored, as indicated at 26, to receive the head 27 of screw 21.
  • the bottom edge of the counterbored portion of aperture 25 limits outward movement of plate 14 relative to plate 15, but does not affect its inward movement.
  • Plate 15 is provided adjacent its opposite end with a threaded aperture 28 into which screw 22 is threaded.
  • Plate 14 is provided with a smooth aperture 29 to receive the shank of screw 22.
  • Screw 22 is longer than screw 21 and extends entirely through plate 14 with its head 30 abutting the front surface of the plate. Head 30 also functions as a stop member for honing pin holder 13, as
  • plate 14 has a longitudinal channel 37 disposed along the center line of its front surface.
  • the inner edges 38 and 39 of honing plates 10 and 11, respectively, are spaced from the edges of channel 37 to provide ledges 40 and 41 on opposite edges of channel 37.
  • Inner edges 3S and 39 of the honing plates extend upwardly from the surface of plate 14 at converging angles.
  • Plates 10, 11, 14, 15, 16 and 17 constitute a frame in which the honing pin holder 13 is slidably mounted.
  • the side walls of honing pin holder 13 are straight at their lower portions which are adaptedto t in the bottom of channel 37, and are provided with shoulders 42 and 43 (Fig. 7) to seat on ledges 40 and 41.
  • the side wall portions of the honingpin holder 13 above shoulders 42 are iiared inwardly to fit against the inner edges 38 and 39 of the honing plates and to provide a sliding fit that will not permit removal of the honing pin holder from channel 37.
  • Head 30 of screw 22 is positioned in channel 37 adjacent one end of the channel to prevent honing pin holder 13 from sliding out of the channel.
  • Spring pressed plate 14 is considerably longer than plate 15 and, therefore, screw 21, which is positioned adjacent the end of platel15 is spaced a considerable distance inwardly of the opposite end of channel 37. Accordingly, a separate screw 44 is-threaded into plate 14 adjacent the opposite end from screw 22, and its head extends into channel 37 to prevent honing pin holder 13 from sliding out that end of the channel.
  • Honing pin holder 13 is provided with a handle 45 to facilitate sliding movement in cannel 37 between screws 22 and 44. Handle 45 is provided with a reduced end 46 (Fig. 8) threaded into honing pin holder 13. Holder 13 is also provided with lan angularly extending aperture 47 into which honing pin 12 is drive fitted.
  • the honing pin is made of oil hardening tool steel, and is preferably provided with a medium straight knurl.
  • Honing plates and 11 are provided adjacent the side walls of channel 37 with smooth outer surfaces 48 and 49, respectively, against which the back edge 7 of bacon slicing knife 2 abuts when the front edge 6 is being honed.
  • the angle of the honing tool or pin 12 coincides with the angle of surface 6 when surface 7 is flush against surfaces 48 and 49.
  • the front edge of honing pin holder 13 projects outwardly beyond surfaces 48 and 49.
  • the front surface of holder 13 to the left of honing pin 12, as seen in Fig. 8, is recessed, as indicated at 50, to provide clearance so that the back surface of knife 2 will abut the smooth surfaces 48 and 49 when the knife edge is being honed.
  • the honing device When the bacon slicing knife is to be honed, the honing device is pushed over the edge of housing frame 4 with plates l5 and 17 straddling the edge of the housing frame above guide bar 8. The honing device is then moved downwardly and inwardly until the lower edge of plate 15 is flush against the top edge of guide bar 8 and the inner edge of plate 16 abuts the peripheral edge of housing frame 4. Screw 19 is then tightened to hold the honing device against movement relative to the housing frame.
  • a detachable handle 51 is secured in either of two apertures 52 (Fig. l) provided therefor, and knife 2 is manually rotated until the portion of cutting edge 5 that is closest to shaft 3 is adjacent the inner end of the honing device.
  • the honing pin holder 13 is then slid in channel 37 until honing tool or pin 12 is ush against surface 6 of the knife.
  • the operator holds handle 51 in one hand and handle 45 in the other. As he rotates knife 2 in a clockwist dirlectionv by manipulation of.
  • handle 51 he holds honing pin 12 against the surface 6 while permitting it to move outwardly in accordance with the spiral curvature of the knife.
  • the back side of the knife is generally smooth, it may have some slight irregularity.
  • Springs 36 tend to keep honing plates 1t) and 11 against the back surface of the knife, and if these plates are forced rearwardly by any irregularity in the back surface of the knife,y springs 36 will return the honing platesY totheir' proper position immediately after the irregularity has passed the. surfaces 48 and 49.
  • the knife edge is honedwithout removing the knife from its operative position. As soon as the honing operation is completed screw 19is loosened, and the honing device is readily removed from1the housing frame.
  • the guide bar 8 does not interfere with the regular operation of the knife and may remain on the housing frame permanently.
  • a honing device for a slicing blade rotatably4 mounted in a housing said device comprising a guide bar rigidly secured to said housing, a frame detachably secur able to said housing with one edge abutting said'. guide bar and one part abutting an edge of said housing, said frame including a honing plate on one side thereofaA holder slidably mounted in said frame adjacent said honing plate, and a honing tool mounted in saidholder, said honing tool projecting from said holder angularly relative to the plane of said honing plate.
  • a honing device for a slicing blade rotatably mounted in a housing said device comprising a guidebar rigidly secured to said housing, a plate secured to said housing with one edge abutting an-edge of said guide bar', a spring pressed platehsecured to saidrst mentionedplate, said spring pressedY plateV having its outer surface juxtaposed against the rear surface of said slicing. blade,
  • a honing device for a slicing blade rotatably mounted in a housing said device comprising a guide bar rigidly secured to said housing, a-plate secured to said housing with one edge abutting an edge of said guide bar, a spring pressed plate secured to said first mentioned plate, the outersurface of said. spring pressed' vplate having a channel extending longitudinally therein,la pair of honing plates secured to the outer lsurface: cfu-said spring pressed plate on opposite edges of said ⁇ channel, said honing plates each having an outer surface juxtaposed against the rear surface of ⁇ said slicing blade,. a honing pin holder slidably mounted in said channel, ⁇ anda honing'pin angularly mounted in said holder tofengage the front surface of said slicing blade adjacent its' peripheral edge.
  • a honing device for a slicing blade rotatably mounted in a housing said device comprising a guide bar rigidly secured to said housing, a plate secured to. said housing with one edge abutting anV edge ofy said guide bar, a spring pressed plate secured to said first mentioned plate, the outer surface of said'spring pressed plate having.
  • a honing pin holder slidably mounted in said channel, said holder having edges shaped to lit between said inner edges of said honing plates, and a honing pin angularly mounted in said holder to engage the front surface of said slicing blade adjacent its peripheral edge.
  • a honing device for a slicing blade rotatably mounted adjacent a housing and having a cutting edge spaced at varying distances from the axis upon which said blade is mounted said honing device comprising a frame having a spring pressed plate and a honing plate rigidly secured to said spring pressed plate, a honing pin, means slidably mounted in said frame for supporting said honing pin in fixed angular relationship to said honing plate, means for detachably securing said frame to said housing with said honing plate in engagement with the rear surface of said slicing blade and said honing pin engageable with the front surface of said slicing blade adjacent its peripheral edge, and means to move said honing pin laterally relative to said honing plate to keep it in contact with said cutting edge as said slicing blade is rotated.
  • a honing device for a slicing blade rotatably mounted in a housing comprising a frame detachably securable to the housing, said frame including a honing plate engageable with one surface of said slicing blade, a holder mounted in said frame adjacent said honing plate, said holder being slidable longitudinally of said honing plate, and a honing tool mounted in said holder, said honing tool projecting angularly beyond the outer surface of said honing plate to engage the surface f said slicing blade opposite the surface engaged by said honing plate.
  • a honing device for a slicing blade rotatably mounted in a housing on an axis extending transversely of said housing, a frame detachably xed to said housing, said frame including a honing plate extending radially of vsaid aXis, the inner end of said honing plate being positioned to engage one surface of said slicing blade along the portion ofthe cutting kedge closest to said axis, said honing plate having sufcient length to engage the entire length of said cutting edge as said slicing blade is rotated, and a honing tool slidably mounted on said frame adjacent said honing plate to engage the opposite surface of said slicing blade along its entire length as said slicing blade is rotated.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Description

o. GARAPoLo 2,911,857
HONING DEVICE FOR SLICING BLADE 2 Sheets-SheetI 1 Nov. 10, 1959 Filed June 6, 1956 NOV. 10, 1959 Q, GARAPQLO 2,911,857
HONING DEVICE FOR SLICING BLADE Filed June 6. 1956 2 Sheets-Sheet 2 -pI y 5 h m n 5 mm ..3 w m 1 m mi 2 LOL y. M l LI MA States Patent y v2,911,357 HoNlNG DEVICE non sLIclNG BLADE Orlando Garapolo, Chicago, Ill., assignor to Wilson & Co., Inc., a corporation of Delaware Application June 6, 1956, Serial No. 589,745
9 Claims. (Cl. 76-85) This invention relates to a honing device for slicing blades, and particularly to a device for honing the cutting edge of a spirally shaped blade, such as a bacon slicing knife, without removing it from its housing.
Bacon slicing knives operate at substantial speed, and the bacon must be lsliced uniformly thin. Accordingly, the cutting edge of the blade must be kept constantly in proper condition for eiiicient slicing. Heretofore these blades have been honed by hand, but the curvature and the transverse angularity of the cutting edge have cornbined to make hand honing a slow and laborious process. In addition, a great degree of skill is required to properly hone an angular edge curved in the spiral shape of bacon slicing knives.
' In accordance with the present invention a honing tool in the form of a pin is mounted at the angle required, and is held against the cutting edge of the blade'by a mechanical device. No skill is required to hold the honing pin against the edge at the proper angle. Guide means for insuring proper alignment of the honing device is` `permanently secured to the blade housing frame out of the way of the knife. The guide means facilitates proper positioning of the honing device so that it may be applied quickly to the blade housing frame and readily removed after the edge of the slicing blade is properly honed.
The structure by means of which the above and other advantages of the invention are attained will be described in the following specilication, taken in conjunction with the accompanying drawings, showing a preferred illustrative embodiment of the invention, in which:
' `Figure 1 is a front elevational view showing a knife rotatably mounted in a housing, with the honing device of the` present invention detachably mounted on the blade housing frame;
Fig. 2'is a cross sectional view, taken along the line Fig. '3 is -a fragmentary perspective view of the blade housing frame, with the guidebar for the honing device secured thereto; v
Fig. 4 is a detail perspective view of a honing device embodying the invention;
Fig.,5 is a cross sectional view, taken along the line 5-5 of Fig. 1;
Fig. 6 is an enlarged fragmentary perspective view of the vhoning device;
Fig. 7 is an end elevational view of the honing device;
Fig. 8 is a cross sectional view, taken along the line 8 8 of Fig. l, but omitting the blade housing frame; and
Fig. 9 is a cross sectional view, taken along the line 9 -9 of Fig. 7, but showing the honing pin in engagement with they cutting edge of a slicing blade.
Referring to Fig. 1 of the drawings, the reference numeral V2 indicates a bacon slicing knife mounted on a rotatable shaft 3 adjacent the frame 4 of a suitable housing. A motor (not shown) rotates knife 2 in a vertical plane in clockwise direction, as seen in Fig. 1. The knife is shaped like a spiral so thatits cutting engagement with rlice a slab of bacon fed transversely of ythe knife by any suitable mechanism is progressive from the initial engagement until the slice is completely severed. It will be understood that the word spiral is used generically, and that the honing device may be used with cutting blades of any shape. The knife is also curved in cross section, as shown in Figs. 8 and 9. The outer edge 5, formed by the intersection of angular surfaces 6 and 7 is very thin, and the surface 6 must be honed to keep the edge extremely sharp.
A guide bar 8 is rigidly ysecured -to `the housing frame 4 by screws 9. Guide bar 8 extends horizontally and its inner end is spaced from shaft 3 a distance approximately equal to the distance from shaft 3 to the portion of the cutting edge closest thereto. The thickness of guide bar 8 is less than the distance between cutting edge 5 and the front surface of blade housing frame 4 to prevent the guide bar from interfering with the rotation of slicing blade 2.
The honing device comprises a pair of honing plates 10 and 11, a honing tool or pin 12, a honing pin holder 13, a spring pressed plate 14, a center plate 15, a spacer plate 16, and a holding plate 17. Honing plates 10 and 11 are secured to plate 14 by screws 14 (Fig. 9). Plates 15, 16 and 17 are Varranged with one end of each flush with the others and are rigidly secured together by means of screws 18. Plate 16 is shorter than plates 15 and 17 and provides a space between them beyond its -inner end. 'I'he honing device is adapted to straddle one edge of housing frame 4 with the inner end of `spacer plate 16 abutting the edge, and plates 15 and 17 adjacent opposite surfaces of the housing frame. Spacer plate 16 is slightly thicker than housing frame 4 to facilitate movement of the honing device relative to the housing frame so that the honing device may be easily positioned. When Ithe lower edge of center plate 15 abuts the upper edge of guide bar 8, and the inner end of spacer plate 16 abuts the peripheral edge of housing frame 4, the honing device is secured in place. A screw 19, threaded through holding plate 17, is tightened against therear surface yof housing frame 4 to secure the honing device in place. Screw 19 is preferably provided with a wing lhead 20 to facilitate manual turning of the screw.
Plate 14 is secured to center plate 15 by means of screws 21, 22 and 23. Plate 15 is provided adjacent one end with a threaded aperture 24 into which screw 21 is threaded. Plate 14 is provided with a smooth aperture 25 to receive the shank of screw 21. The front end of aperture 25 is counterbored, as indicated at 26, to receive the head 27 of screw 21. The bottom edge of the counterbored portion of aperture 25 limits outward movement of plate 14 relative to plate 15, but does not affect its inward movement. The inward movement of plate 14 is limited by the rear side of honing plate 10 or =1.1 which abuts the open end of the counterbored aperture.
Plate 15 is provided adjacent its opposite end with a threaded aperture 28 into which screw 22 is threaded. Plate 14 is provided with a smooth aperture 29 to receive the shank of screw 22. Screw 22 is longer than screw 21 and extends entirely through plate 14 with its head 30 abutting the front surface of the plate. Head 30 also functions as a stop member for honing pin holder 13, as
hereinafter described.
screw `23. One end of spring 36 bears against plate 14 Y Y andthe other end bears against plate 15 to keep these As shown in Fig. 6, plate 14 has a longitudinal channel 37 disposed along the center line of its front surface. The inner edges 38 and 39 of honing plates 10 and 11, respectively, are spaced from the edges of channel 37 to provide ledges 40 and 41 on opposite edges of channel 37. Inner edges 3S and 39 of the honing plates extend upwardly from the surface of plate 14 at converging angles. Plates 10, 11, 14, 15, 16 and 17 constitute a frame in which the honing pin holder 13 is slidably mounted. The side walls of honing pin holder 13 are straight at their lower portions which are adaptedto t in the bottom of channel 37, and are provided with shoulders 42 and 43 (Fig. 7) to seat on ledges 40 and 41. The side wall portions of the honingpin holder 13 above shoulders 42 are iiared inwardly to fit against the inner edges 38 and 39 of the honing plates and to provide a sliding fit that will not permit removal of the honing pin holder from channel 37. Head 30 of screw 22 is positioned in channel 37 adjacent one end of the channel to prevent honing pin holder 13 from sliding out of the channel. Spring pressed plate 14 is considerably longer than plate 15 and, therefore, screw 21, which is positioned adjacent the end of platel15 is spaced a considerable distance inwardly of the opposite end of channel 37. Accordingly, a separate screw 44 is-threaded into plate 14 adjacent the opposite end from screw 22, and its head extends into channel 37 to prevent honing pin holder 13 from sliding out that end of the channel.
Honing pin holder 13 is provided with a handle 45 to facilitate sliding movement in cannel 37 between screws 22 and 44. Handle 45 is provided with a reduced end 46 (Fig. 8) threaded into honing pin holder 13. Holder 13 is also provided with lan angularly extending aperture 47 into which honing pin 12 is drive fitted. The honing pin is made of oil hardening tool steel, and is preferably provided with a medium straight knurl. Honing plates and 11 are provided adjacent the side walls of channel 37 with smooth outer surfaces 48 and 49, respectively, against which the back edge 7 of bacon slicing knife 2 abuts when the front edge 6 is being honed. The angle of the honing tool or pin 12 coincides with the angle of surface 6 when surface 7 is flush against surfaces 48 and 49. The front edge of honing pin holder 13 projects outwardly beyond surfaces 48 and 49. The front surface of holder 13 to the left of honing pin 12, as seen in Fig. 8, is recessed, as indicated at 50, to provide clearance so that the back surface of knife 2 will abut the smooth surfaces 48 and 49 when the knife edge is being honed.
When the bacon slicing knife is to be honed, the honing device is pushed over the edge of housing frame 4 with plates l5 and 17 straddling the edge of the housing frame above guide bar 8. The honing device is then moved downwardly and inwardly until the lower edge of plate 15 is flush against the top edge of guide bar 8 and the inner edge of plate 16 abuts the peripheral edge of housing frame 4. Screw 19 is then tightened to hold the honing device against movement relative to the housing frame.
A detachable handle 51 is secured in either of two apertures 52 (Fig. l) provided therefor, and knife 2 is manually rotated until the portion of cutting edge 5 that is closest to shaft 3 is adjacent the inner end of the honing device. The honing pin holder 13 is then slid in channel 37 until honing tool or pin 12 is ush against surface 6 of the knife. The operator holds handle 51 in one hand and handle 45 in the other. As he rotates knife 2 in a clockwist dirlectionv by manipulation of.
handle 51 he holds honing pin 12 against the surface 6 while permitting it to move outwardly in accordance with the spiral curvature of the knife. Although the back side of the knife is generally smooth, it may have some slight irregularity. Springs 36 tend to keep honing plates 1t) and 11 against the back surface of the knife, and if these plates are forced rearwardly by any irregularity in the back surface of the knife,y springs 36 will return the honing platesY totheir' proper position immediately after the irregularity has passed the. surfaces 48 and 49. The knife edge is honedwithout removing the knife from its operative position. As soon as the honing operation is completed screw 19is loosened, and the honing device is readily removed from1the housing frame. The guide bar 8 does not interfere with the regular operation of the knife and may remain on the housing frame permanently.
Although I'have described a preferred embodiment of the invention in considerable detail', `it will be under-y stood that the description thereof is intendedv to beillusf trative, rather than restrictive, as many' details may bey modied or changed without departingV from the spirit or scope of the invention. Accordingly, I do not desire to be restricted to the exact construction described.
I claim:
l. A honing device for a slicing blade rotatably4 mounted in a housing, said device comprising a guide bar rigidly secured to said housing, a frame detachably secur able to said housing with one edge abutting said'. guide bar and one part abutting an edge of said housing, said frame including a honing plate on one side thereofaA holder slidably mounted in said frame adjacent said honing plate, and a honing tool mounted in saidholder, said honing tool projecting from said holder angularly relative to the plane of said honing plate.
2. A honing device for a slicing blade rotatably mounted in a housing, said device comprising a guidebar rigidly secured to said housing, a plate secured to said housing with one edge abutting an-edge of said guide bar', a spring pressed platehsecured to saidrst mentionedplate, said spring pressedY plateV having its outer surface juxtaposed against the rear surface of said slicing. blade,
the outer surface of said spring pressed plate having. a-
channel extending longitudinally therein, a holder slidably mounted in said channel, and a honing tooll angularly mounted in said holder to engage thefront surfaceof Asaid slicing blade adjacent its peripheral edge.
3. A honing device for a slicing blade rotatably mounted in a housing, said device comprising a guide bar rigidly secured to said housing, a-plate secured to said housing with one edge abutting an edge of said guide bar, a spring pressed plate secured to said first mentioned plate, the outersurface of said. spring pressed' vplate having a channel extending longitudinally therein,la pair of honing plates secured to the outer lsurface: cfu-said spring pressed plate on opposite edges of said` channel, said honing plates each having an outer surface juxtaposed against the rear surface of `said slicing blade,. a honing pin holder slidably mounted in said channel,` anda honing'pin angularly mounted in said holder tofengage the front surface of said slicing blade adjacent its' peripheral edge.
4. A honing device for a slicing blade rotatably mounted in a housing, said device comprisinga guide bar rigidly secured to said housing, a plate secured to. said housing with one edge abutting anV edge ofy said guide bar, a spring pressed plate secured to said first mentioned plate, the outer surface of said'spring pressed plate having.
a channel extending longitudinally therein, a pairy of honing plates secured to the outer surfacefof saidspring pressed plate on opposite edges of said channel, eachof. said honingiplates having, its inner edge spacedfromathe adjacent edge of said channeland its outer edge juxta-v posed ag'ainstf the rear surface of saidA slicing blade, the
inner edges of. said honing. plates extending'upwardly. at-
converging angles, a honing pin holder slidably mounted in said channel, said holder having edges shaped to lit between said inner edges of said honing plates, and a honing pin angularly mounted in said holder to engage the front surface of said slicing blade adjacent its peripheral edge.
5. A honing device for a slicing blade rotatably mounted adjacent a housing and having a cutting edge spaced at varying distances from the axis upon which said blade is mounted, said honing device comprising a frame having a spring pressed plate and a honing plate rigidly secured to said spring pressed plate, a honing pin, means slidably mounted in said frame for supporting said honing pin in fixed angular relationship to said honing plate, means for detachably securing said frame to said housing with said honing plate in engagement with the rear surface of said slicing blade and said honing pin engageable with the front surface of said slicing blade adjacent its peripheral edge, and means to move said honing pin laterally relative to said honing plate to keep it in contact with said cutting edge as said slicing blade is rotated.
6. A honing device for a rotatably mounted slicing blade having a spirally curved cutting edge, said cutting edge being angular in cross section, a frame mounted adjacent the rear surface of said slicing blade, said frame including a spring pressed plate having a longitudinally extending channel in one surface thereof, a honing plate rigidly secured to said spring pressed plate, a honing pin holder slidably mounted in said channel, and a honing pin mounted in said frame at an angle coincident with the angularity of said cutting edge, said honing plate and pin being engageable with opposite surfaces of said spirally curved cutting edge throughout its rotational movement.
7. A honing device for a rotatably mounted slicing blade having a spirally curved cutting edge, means for rotating said blade, the front surface of said blade contiguous to said cutting edge being angular, a frame mounted adjacent the rear surface of said slicing blade, said frame including an undercut channel, a honing plate secured to one surface of said frame adjacent one edge Cil of said channel to engage the rear surface of said slicing blade, a honing pin holder mounted in said undercut channel, and a honing pin mounted in said holder, said honing pin extending from said holder at an angle equal to the angle of the angular surface of said blade, said honing pin holder being slidable in said channel to hold said honing pin in contact with said angular surface of said blade as said blade is rotated,
8. A honing device for a slicing blade rotatably mounted in a housing, said device comprising a frame detachably securable to the housing, said frame including a honing plate engageable with one surface of said slicing blade, a holder mounted in said frame adjacent said honing plate, said holder being slidable longitudinally of said honing plate, and a honing tool mounted in said holder, said honing tool projecting angularly beyond the outer surface of said honing plate to engage the surface f said slicing blade opposite the surface engaged by said honing plate.
9. A honing device for a slicing blade rotatably mounted in a housing on an axis extending transversely of said housing, a frame detachably xed to said housing, said frame including a honing plate extending radially of vsaid aXis, the inner end of said honing plate being positioned to engage one surface of said slicing blade along the portion ofthe cutting kedge closest to said axis, said honing plate having sufcient length to engage the entire length of said cutting edge as said slicing blade is rotated, and a honing tool slidably mounted on said frame adjacent said honing plate to engage the opposite surface of said slicing blade along its entire length as said slicing blade is rotated.
ReferenceslCited in the tile of this patent UNITED STATES PATENTS 680,045 Hopkins Aug. 6, 1901 783,464 Root Feb. 28, 1905 2,207,433 Haswell July 9, 1940 2,486,797 Meyer Nov. 1, 1949 2,721,430 Green et al Oct. 25, 1955 2,738,628 Lust Mar. 20, 1956
US589745A 1956-06-06 1956-06-06 Honing device for slicing blade Expired - Lifetime US2911857A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6634257B2 (en) * 2002-01-15 2003-10-21 John W. Long Sharpening method and apparatus for rotary knives
US9862042B1 (en) * 2017-03-22 2018-01-09 Ishmel Webb Chainsaw guide bar mounting device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US680045A (en) * 1899-10-10 1901-08-06 Enterprise Mfg Co Sharpening attachment for beef-shaving machine.
US783464A (en) * 1904-08-30 1905-02-28 Gustaf Root Sharpener for cutters of bread-slicing machines.
US2207433A (en) * 1938-03-14 1940-07-09 Harry H Straus Means for sharpening a circular knife
US2486797A (en) * 1945-01-08 1949-11-01 Us Slicing Machine Co Knife sharpener for slicing machines
US2721430A (en) * 1953-06-18 1955-10-25 Gen Slicing Machine Co Inc Sharpener device for blades of slicing and cutting machines
US2738628A (en) * 1955-06-28 1956-03-20 Lust William Sharpening apparatus for eccentric involute slicing blades

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US680045A (en) * 1899-10-10 1901-08-06 Enterprise Mfg Co Sharpening attachment for beef-shaving machine.
US783464A (en) * 1904-08-30 1905-02-28 Gustaf Root Sharpener for cutters of bread-slicing machines.
US2207433A (en) * 1938-03-14 1940-07-09 Harry H Straus Means for sharpening a circular knife
US2486797A (en) * 1945-01-08 1949-11-01 Us Slicing Machine Co Knife sharpener for slicing machines
US2721430A (en) * 1953-06-18 1955-10-25 Gen Slicing Machine Co Inc Sharpener device for blades of slicing and cutting machines
US2738628A (en) * 1955-06-28 1956-03-20 Lust William Sharpening apparatus for eccentric involute slicing blades

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6634257B2 (en) * 2002-01-15 2003-10-21 John W. Long Sharpening method and apparatus for rotary knives
US9862042B1 (en) * 2017-03-22 2018-01-09 Ishmel Webb Chainsaw guide bar mounting device

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