US451118A - Cylindrical cutter - Google Patents
Cylindrical cutter Download PDFInfo
- Publication number
- US451118A US451118A US451118DA US451118A US 451118 A US451118 A US 451118A US 451118D A US451118D A US 451118DA US 451118 A US451118 A US 451118A
- Authority
- US
- United States
- Prior art keywords
- grooves
- sections
- spiral
- straight
- cylinder
- 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
Links
- 230000002093 peripheral Effects 0.000 description 8
- 210000003414 Extremities Anatomy 0.000 description 6
- 238000004804 winding Methods 0.000 description 6
- 229940051104 Testim Drugs 0.000 description 2
- MUMGGOZAMZWBJJ-DYKIIFRCSA-N Testostosterone Chemical compound O=C1CC[C@]2(C)[C@H]3CC[C@](C)([C@H](CC4)O)[C@@H]4[C@@H]3CCC2=C1 MUMGGOZAMZWBJJ-DYKIIFRCSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 230000003247 decreasing Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002441 reversible Effects 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
- B27G13/00—Cutter blocks; Other rotary cutting tools
- B27G13/02—Cutter blocks; Other rotary cutting tools in the shape of long arbors, i.e. cylinder cutting blocks
- B27G13/04—Securing the cutters by mechanical clamping means
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- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T407/00—Cutters, for shaping
- Y10T407/19—Rotary cutting tool
- Y10T407/1952—Having peripherally spaced teeth
- Y10T407/1962—Specified tooth shape or spacing
- Y10T407/1964—Arcuate cutting edge
- Y10T407/1966—Helical tooth
Definitions
- WITNESSES INVENTOR A TTOR/VEV UNITED STATES PATENT OFFICE.
- My invention relates to improvements in cylindrical cutters provided with a series of spiral knives or blades, whereof each knife or blade extends in a reverse direction from a straight or slightly-curved intermediate portion toward the respective ends of the cylinder, so as to cause the cylinder to work from the middle portions thereof outward. It is well known that the best results have been obtained in practice by the employment of cylindrical cutters provided with a series of spiral blades or knives, whereof each blade or knife is arranged in reverse directions from a slightly-curved or straight portion and extends toward the respective ends of the cylinder.
- the principal object of my present invention is to obviate the above-mentioned difficulties and to provide a comparatively-light, yet strong and durable, cutting appliance, and onewhich may be readily, rapidly, and cheaply made and finished by means of machine-tools,
- the core of the cylinder is made in two or more sections, each having the grooves thereon arranged spirally and in the same direction throughout its length, so that the core may be readily withdrawn from the mold and easily finished by means of machinetools.
- the straight or reverselycurved and axially-disposed portions of the grooves are located at one of the extremities of each of said sections, so that they can be readily cast and finished.
- These sections are in use placed together end to end, with the straight or slightly-curved portions of the grooves, in proximity to each other and with the spiral grooves winding in reverse directions toward the ends thereof and attached together in any suitable manner.
- FIG. 1 is a longitudinal central section of a cylindrical cutter with the knives or cutters removed, showing a core composed of two sections and showing means for connecting the same together; and
- FIG. 2 is a top or plan view of a cylindrical cutter embodying features of my invention, showing a core comprising two sections, each having a series of axially and spirally arranged peripheral grooves and also showing said sections placed end to end with the axial and spiral grooves in communication and with continuous spiral knives or blades fitted into said grooves.
- A represents a cylindrical core composed of as many hollow sections a and a as there are reversals of the direction of the spiral knives or blades B.
- Each of these sections a and a is preferably provided with end flanges or heads a and with a shaft-opening a
- In the periphery of the sections at or near one extremity thereof are formed axially-disposed straight or slightly-curved grooves. (Represented in Fig. 2 between the center and dotted lines.
- Each of these continuous straight or slightlycurved axial grooves and spiral grooves serve for the reception of the continuous knives or blades B, which are formed so as to run from a slightly-curved portion thereof (see center line, Fig. 2) in different or reverse directionstoward therespectiveextremities of the cylinder.
- 0 represents the shafts, onto which the hollow sections a and a of the cylinder are mounted.
- This shaft 0, passing through the sectional cylinder, is preferably provided with collars or bearings c, c, and 0
- collars or bearings c, c, and 0 In the cylin der-section heads a are formed ways or seats for the insertion of keys d, to secure the sections a and a to said shaft 0, and so as to be adapted to freely rotate therewith.
- the outer collars c and c of the shaft 0 are preferably screw-threaded to receive nuts f, which are fitted snugly up against the outer heads a of the sections to prevent longitudinal or other movement of the same on the shaft 0.
- a cylindrical cutter comprising a core having axially-disposed peripheral grooves and circumferential spiral grooves arranged in reverse directions and composed of a series of sections placed end to end, and each section having axially-disposed peripheral grooves at one extremity thereof and spirally-disposed circumferential grooves winding in one direction therefrom, a series of continuous spiral knives or cutters arranged in right and left directions from a straight or curved portion and fitted into said axial and spiral grooves, and means for unitingsaid sections,substantially as and for the purposes set forth.
Description
(No Model.)
W. EVANS.
UYLINDRICAL CUTTER.
No. 451,118. I .PatentedApr. 28,1891,
WITNESSES: INVENTOR A TTOR/VEV UNITED STATES PATENT OFFICE.
WILLIAM EVANS, OF PHILADELPHIA, PENN SYLVANIA.
CYLINDRICAL CUTTER.
SPEGIFIGATION forming part of Letters Patent No. 451,118, dated April 28, 1891.
Application filed April 24, 1890. Serial No. 349,267. (No model.)
To all whom it may concern.-
Be it known that 1, WILLIAM EVANS, a citizen of the United States, residing at the city of Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Cylindrical Cutters, of which the following is a specification.
My invention relates to improvements in cylindrical cutters provided with a series of spiral knives or blades, whereof each knife or blade extends in a reverse direction from a straight or slightly-curved intermediate portion toward the respective ends of the cylinder, so as to cause the cylinder to work from the middle portions thereof outward. It is well known that the best results have been obtained in practice by the employment of cylindrical cutters provided with a series of spiral blades or knives, whereof each blade or knife is arranged in reverse directions from a slightly-curved or straight portion and extends toward the respective ends of the cylinder.
Heretofore it has been customary to manufacture such cylindrical cutters by making a core or cylindrical blank provided with a series of short straight or slightly-curved axial grooves communicating with spiral grooves winding in opposite directions away from said axial grooves toward the ends of the cylinder, and then fitting and \vedging the series of knives or blades to place in said grooves. However, the operations of casting the cylinder and of cutting and finishing the grooves were not only tedious, but also costly, first, on account of the difficulty encountered in removing the castings from the mold, and, second, on account of the difficulty presented in finishing the grooves, more especially'at and near the junction of the axially disposed straight or slightly-curved grooves and the inversely-arranged spiral grooves. In practice such cutters were exceedingly expensive and their employment was in many cases precluded by their excessive cost.
The principal object of my present invention is to obviate the above-mentioned difficulties and to provide a comparatively-light, yet strong and durable, cutting appliance, and onewhich may be readily, rapidly, and cheaply made and finished by means of machine-tools,
thereby appreciably decreasing the cost of the same.
v In my invention the core of the cylinder is made in two or more sections, each having the grooves thereon arranged spirally and in the same direction throughout its length, so that the core may be readily withdrawn from the mold and easily finished by means of machinetools. Moreover, the straight or reverselycurved and axially-disposed portions of the grooves are located at one of the extremities of each of said sections, so that they can be readily cast and finished. These sections are in use placed together end to end, with the straight or slightly-curved portions of the grooves, in proximity to each other and with the spiral grooves winding in reverse directions toward the ends thereof and attached together in any suitable manner.
The particular characteristic features of my invention will be more fully understood from the following description, taken in connection with the accompanying drawings, forming part hereof, and in which- Figure l is a longitudinal central section of a cylindrical cutter with the knives or cutters removed, showing a core composed of two sections and showing means for connecting the same together; and Fig. 2 is a top or plan view of a cylindrical cutter embodying features of my invention, showing a core comprising two sections, each having a series of axially and spirally arranged peripheral grooves and also showing said sections placed end to end with the axial and spiral grooves in communication and with continuous spiral knives or blades fitted into said grooves.
Referring to the drawings, A represents a cylindrical core composed of as many hollow sections a and a as there are reversals of the direction of the spiral knives or blades B. Each of these sections a and a is preferably provided with end flanges or heads a and with a shaft-opening a In the periphery of the sections at or near one extremity thereof are formed axially-disposed straight or slightly-curved grooves. (Represented in Fig. 2 between the center and dotted lines.
a are peripheral spiral grooves communicating with the straight or slightly-curved axial grooves and disposed in reverse directions on each of the sections-=that is, lefthanded on section a and right-handed on section a. Each of these continuous straight or slightlycurved axial grooves and spiral grooves serve for the reception of the continuous knives or blades B, which are formed so as to run from a slightly-curved portion thereof (see center line, Fig. 2) in different or reverse directionstoward therespectiveextremities of the cylinder.
0 represents the shafts, onto which the hollow sections a and a of the cylinder are mounted. This shaft 0, passing through the sectional cylinder, is preferably provided with collars or bearings c, c, and 0 In the cylin der-section heads a are formed ways or seats for the insertion of keys d, to secure the sections a and a to said shaft 0, and so as to be adapted to freely rotate therewith. The outer collars c and c of the shaft 0 are preferably screw-threaded to receive nuts f, which are fitted snugly up against the outer heads a of the sections to prevent longitudinal or other movement of the same on the shaft 0.
Having; thus described the nature and objects of my invention, what I claim as new, and desire to secure by Letters Patent, is
A cylindrical cutter comprising a core having axially-disposed peripheral grooves and circumferential spiral grooves arranged in reverse directions and composed of a series of sections placed end to end, and each section having axially-disposed peripheral grooves at one extremity thereof and spirally-disposed circumferential grooves winding in one direction therefrom, a series of continuous spiral knives or cutters arranged in right and left directions from a straight or curved portion and fitted into said axial and spiral grooves, and means for unitingsaid sections,substantially as and for the purposes set forth.
In testim ony whereof I affix my signature in presence of two witnesses.
WVILLIAM EVANS.
WVitnesses: v
FRANK H. MASSEY, S. J. VAN SIAVOREN.
Publications (1)
Publication Number | Publication Date |
---|---|
US451118A true US451118A (en) | 1891-04-28 |
Family
ID=2520000
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US451118D Expired - Lifetime US451118A (en) | Cylindrical cutter |
Country Status (1)
Country | Link |
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US (1) | US451118A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2545827A (en) * | 1946-08-21 | 1951-03-20 | Calvin L Posey | Scraping machine |
US2719553A (en) * | 1951-05-22 | 1955-10-04 | Lillie Ballard | Portable power plane |
US3028891A (en) * | 1959-08-27 | 1962-04-10 | Soderhamn Machine Mfg Co | Log debarking machine of the rotary scraper head type |
US4227837A (en) * | 1978-03-09 | 1980-10-14 | Shigeyasu Yodoshi | Router bit |
US20130294852A1 (en) * | 2012-05-01 | 2013-11-07 | Seco Tools Ab | Compression cutting tool |
-
0
- US US451118D patent/US451118A/en not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2545827A (en) * | 1946-08-21 | 1951-03-20 | Calvin L Posey | Scraping machine |
US2719553A (en) * | 1951-05-22 | 1955-10-04 | Lillie Ballard | Portable power plane |
US3028891A (en) * | 1959-08-27 | 1962-04-10 | Soderhamn Machine Mfg Co | Log debarking machine of the rotary scraper head type |
US4227837A (en) * | 1978-03-09 | 1980-10-14 | Shigeyasu Yodoshi | Router bit |
US20130294852A1 (en) * | 2012-05-01 | 2013-11-07 | Seco Tools Ab | Compression cutting tool |
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