US2259015A - Rotary cutter - Google Patents

Rotary cutter Download PDF

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Publication number
US2259015A
US2259015A US30768139A US2259015A US 2259015 A US2259015 A US 2259015A US 30768139 A US30768139 A US 30768139A US 2259015 A US2259015 A US 2259015A
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United States
Prior art keywords
teeth
rotary cutter
outer ends
disk
work
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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Inventor
Marshall C Anderson
Estes Owen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
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Individual
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Priority to US30768139 priority Critical patent/US2259015A/en
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Publication of US2259015A publication Critical patent/US2259015A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27BSAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B33/00Sawing tools for saw mills, sawing machines, or sawing devices
    • B27B33/02Structural design of saw blades or saw teeth
    • B27B33/08Circular saw blades
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/929Tool or tool with support
    • Y10T83/9319Toothed blade or tooth therefor
    • Y10T83/936Series of allochiral teeth

Definitions

  • woodwork and has for its primary object to provide, in a manner as hereinafter set forth, a device of this character comprising teeth of a novel construction whereby a very smooth cut may be had, thereby eliminating the necessity of planing the work to obtain a smooth surface.
  • Another very important object of the invention is to provide a rotary cutter of the aforementionecl character embodying teeth of such construction that the tool will function at comparatively great speed without overheating.
  • Figure 1 is a view in side elevation of a rotary cutter constructed in accordance with the present invention.
  • Figure 2 is an edge view thereof.
  • Figure 3 is a sectional view through one of the teeth, taken substantially on the line 3-3 of Figure 1.
  • the embodiment of the invention which has been illustrated comprises a metallic disk having an eye or opening 2 therein.
  • the disk may be of any suitable diameter.
  • Projecting from the periphery of the disk I are integral teeth 3.
  • the gist of the present invention resdes in the construction and arrangement of the teeth.
  • the teeth 3 taper from their inner ends or base portions toward their outer ends.
  • the cutter rotates in the direction indicated by the arrow in Figure 1 of the drawing and it will be observed that the teeth 3 are back pitched.
  • the outer ends of the teeth 3 are .rearwardly inclined, as at 4. It will also be noted that the inclined outer or free ends 4 of the teeth 3 are beveled alternately on opposite sides, as at 5.
  • leading or entering edges 6 of the teeth 3 are forwardly bowed from the inner ends of said teeth to the outer ends thereof.
  • the teeth 3 taper in thickness from the leading edges 6 thereof to their rear or trailing edges l.
  • the device functions as follows:
  • a rotary cutter comprising a disk, back pitched teeth projecting from the periphery of said disk, said teeth tapering in width outwardly and terminating in rearwardly inclined outer ends, said outer ends of the teeth being alternately beveled on opposite sides, said teeth tapering throughout their length from their leading edges to their trailing edges.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Knives (AREA)

Description

Oct' 14, 1941. M c. ANDERSON ET AL 2,259,0l5
ROTARY CUTTER Filed Dec. 5, 1939 A torneys Patented Oct. 14, 1941 ROTARY CUTTER Marshall C. Anderson and Owen Estes, Hines, Oreg.
Application December 5, 1939, Serial No. 307,681
1 Claim.
. woodwork and has for its primary object to provide, in a manner as hereinafter set forth, a device of this character comprising teeth of a novel construction whereby a very smooth cut may be had, thereby eliminating the necessity of planing the work to obtain a smooth surface.
Another very important object of the invention is to provide a rotary cutter of the aforementionecl character embodying teeth of such construction that the tool will function at comparatively great speed without overheating.
All of the foregoing and still further Vobjects and advantages of the invention will become apparent from a study of the following specification, taken in connection with the accompanying drawing wherein like characters of reference designate corresponding parts throughout the several views, and wherein:
Figure 1 is a view in side elevation of a rotary cutter constructed in accordance with the present invention.
Figure 2 is an edge view thereof.
Figure 3 is a sectional view through one of the teeth, taken substantially on the line 3-3 of Figure 1.
Referring now to the drawing in detail, it will be seen that the embodiment of the invention which has been illustrated comprises a metallic disk having an eye or opening 2 therein. Of course, the disk may be of any suitable diameter. Projecting from the periphery of the disk I are integral teeth 3. The gist of the present invention resdes in the construction and arrangement of the teeth.
The teeth 3 taper from their inner ends or base portions toward their outer ends. The cutter rotates in the direction indicated by the arrow in Figure 1 of the drawing and it will be observed that the teeth 3 are back pitched. The outer ends of the teeth 3 are .rearwardly inclined, as at 4. It will also be noted that the inclined outer or free ends 4 of the teeth 3 are beveled alternately on opposite sides, as at 5.
The leading or entering edges 6 of the teeth 3 are forwardly bowed from the inner ends of said teeth to the outer ends thereof. As illustrated to advantages in Figure 3 of the drawing, the teeth 3 taper in thickness from the leading edges 6 thereof to their rear or trailing edges l.
Briefly, the device functions as follows:
When the outermost points 8 of the teeth 3 enter the work the highest portions of the bowed leading edges 6 have already entered and cut a clearance for said points 8. In this manner the points 8 are prevented from scratching the work. The lback pitch of the teeth also contributes to the smoothness of the work after it has been cut. Further, many experiments have proven that, due to the back pitch of the teeth, the bowed leading edges thereof, the inclination of the alternately beveled outer ends, the taper from front to back, etc., provide a tool capable of Cutting many more lineal feet per minute than cutters in use at present, and this without overheating.
It is believed that the many advantages of a rotary cutter constructed in accordance With the present invention will be readily understood and although a preferred embodiment of the device is as illustrated and described, it is to be understood that changes in the details of construction may be resorted to which will fall within the scope of the invention as claimed.
What is claimed is:
A rotary cutter comprising a disk, back pitched teeth projecting from the periphery of said disk, said teeth tapering in width outwardly and terminating in rearwardly inclined outer ends, said outer ends of the teeth being alternately beveled on opposite sides, said teeth tapering throughout their length from their leading edges to their trailing edges.
MARSHALL C. ANDERSON. OWEN ESTES.
US30768139 1939-12-05 1939-12-05 Rotary cutter Expired - Lifetime US2259015A (en)

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Application Number Priority Date Filing Date Title
US30768139 US2259015A (en) 1939-12-05 1939-12-05 Rotary cutter

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Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2507571A (en) * 1945-10-12 1950-05-16 Ile D Etudes Pour La Fabricati Vegetable chopper
US2659397A (en) * 1948-12-23 1953-11-17 Claud E Drake Carbide tipped planer saw
US3191478A (en) * 1962-06-28 1965-06-29 Carlson Tool & Machine Company Bristle branching blade
US5141168A (en) * 1990-04-30 1992-08-25 Mono Pumps Limited Macerating machine
US5365986A (en) * 1993-02-26 1994-11-22 Hooser Steven M Cutter grinder
US5636801A (en) * 1995-08-02 1997-06-10 Fellowes Mfg. Co. One piece molded stripper for shredders
US5655725A (en) * 1995-08-24 1997-08-12 Fellowes Manufacturing Co. Retaining plate for gearing
US5676321A (en) * 1995-04-03 1997-10-14 Fellowes Mfg. Co. Cutting disk
US5829697A (en) * 1995-08-24 1998-11-03 Fellowes Manufacturing Company Support for cylinders in a paper shredder
US20100010492A1 (en) * 2008-06-23 2010-01-14 Microfabrica Inc. Miniature Shredding Tool for Use in Medical Applications and Methods for Making
US8414607B1 (en) * 2008-06-23 2013-04-09 Microfabrica Inc. Miniature shredding tool for use in medical applications and methods for making
US8795278B2 (en) 2008-06-23 2014-08-05 Microfabrica Inc. Selective tissue removal tool for use in medical applications and methods for making and using
US9290854B2 (en) 2013-07-16 2016-03-22 Microfabrica Inc. Counterfeiting deterrent and security devices, systems and methods
US9451977B2 (en) 2008-06-23 2016-09-27 Microfabrica Inc. MEMS micro debrider devices and methods of tissue removal
US9468143B2 (en) * 2012-06-12 2016-10-18 Andreas Stihl Ag & Co. Kg Grass blade for a trimmer
US9814484B2 (en) 2012-11-29 2017-11-14 Microfabrica Inc. Micro debrider devices and methods of tissue removal
US10492822B2 (en) 2009-08-18 2019-12-03 Microfabrica Inc. Concentric cutting devices for use in minimally invasive medical procedures
US10668547B2 (en) * 2017-05-09 2020-06-02 Gebrueder Busatis Gesellschaft M.B.H. Saw blade for a saw cutting stalk crops
US10676836B2 (en) 2003-06-27 2020-06-09 Microfabrica Inc. Electrochemical fabrication methods incorporating dielectric materials and/or using dielectric substrates
US10939934B2 (en) 2008-06-23 2021-03-09 Microfabrica Inc. Miniature shredding tools for use in medical applications, methods for making, and procedures for using

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2507571A (en) * 1945-10-12 1950-05-16 Ile D Etudes Pour La Fabricati Vegetable chopper
US2659397A (en) * 1948-12-23 1953-11-17 Claud E Drake Carbide tipped planer saw
US3191478A (en) * 1962-06-28 1965-06-29 Carlson Tool & Machine Company Bristle branching blade
US5141168A (en) * 1990-04-30 1992-08-25 Mono Pumps Limited Macerating machine
US5365986A (en) * 1993-02-26 1994-11-22 Hooser Steven M Cutter grinder
US5676321A (en) * 1995-04-03 1997-10-14 Fellowes Mfg. Co. Cutting disk
US5636801A (en) * 1995-08-02 1997-06-10 Fellowes Mfg. Co. One piece molded stripper for shredders
US5655725A (en) * 1995-08-24 1997-08-12 Fellowes Manufacturing Co. Retaining plate for gearing
US5829697A (en) * 1995-08-24 1998-11-03 Fellowes Manufacturing Company Support for cylinders in a paper shredder
US10676836B2 (en) 2003-06-27 2020-06-09 Microfabrica Inc. Electrochemical fabrication methods incorporating dielectric materials and/or using dielectric substrates
US8475458B2 (en) 2008-06-23 2013-07-02 Microfabrica Inc. Miniature shredding tool for use in medical applications and methods for making
US20100010492A1 (en) * 2008-06-23 2010-01-14 Microfabrica Inc. Miniature Shredding Tool for Use in Medical Applications and Methods for Making
US8414607B1 (en) * 2008-06-23 2013-04-09 Microfabrica Inc. Miniature shredding tool for use in medical applications and methods for making
US8795278B2 (en) 2008-06-23 2014-08-05 Microfabrica Inc. Selective tissue removal tool for use in medical applications and methods for making and using
US8968346B2 (en) 2008-06-23 2015-03-03 Microfabrica Inc. Miniature shredding tool for use in medical applications and methods for making
US8475483B2 (en) 2008-06-23 2013-07-02 Microfabrica Inc. Selective tissue removal tool for use in medical applications and methods for making and using
US9451977B2 (en) 2008-06-23 2016-09-27 Microfabrica Inc. MEMS micro debrider devices and methods of tissue removal
US10939934B2 (en) 2008-06-23 2021-03-09 Microfabrica Inc. Miniature shredding tools for use in medical applications, methods for making, and procedures for using
US9907564B2 (en) 2008-06-23 2018-03-06 Microfabrica Inc. Miniature shredding tool for use in medical applications and methods for making
US10064644B2 (en) 2008-06-23 2018-09-04 Microfabrica Inc. Selective tissue removal tool for use in medical applications and methods for making and using
US10492822B2 (en) 2009-08-18 2019-12-03 Microfabrica Inc. Concentric cutting devices for use in minimally invasive medical procedures
US9468143B2 (en) * 2012-06-12 2016-10-18 Andreas Stihl Ag & Co. Kg Grass blade for a trimmer
US9814484B2 (en) 2012-11-29 2017-11-14 Microfabrica Inc. Micro debrider devices and methods of tissue removal
US9290854B2 (en) 2013-07-16 2016-03-22 Microfabrica Inc. Counterfeiting deterrent and security devices, systems and methods
US10801119B2 (en) 2013-07-16 2020-10-13 Microfabrica Inc. Counterfeiting deterrent and security devices, systems, and methods
US9567682B2 (en) 2013-07-16 2017-02-14 Microfabrica Inc. Counterfeiting deterrent and security devices, systems, and methods
US10668547B2 (en) * 2017-05-09 2020-06-02 Gebrueder Busatis Gesellschaft M.B.H. Saw blade for a saw cutting stalk crops

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