US1618782A - Means for holding blades in cutter heads - Google Patents

Means for holding blades in cutter heads Download PDF

Info

Publication number
US1618782A
US1618782A US9334A US933425A US1618782A US 1618782 A US1618782 A US 1618782A US 9334 A US9334 A US 9334A US 933425 A US933425 A US 933425A US 1618782 A US1618782 A US 1618782A
Authority
US
United States
Prior art keywords
pin
cutter heads
blades
opening
cutter
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
Application number
US9334A
Inventor
Clarence T Rottler
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
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US9334A priority Critical patent/US1618782A/en
Application granted granted Critical
Publication of US1618782A publication Critical patent/US1618782A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C5/00—Milling-cutters
    • B23C5/16—Milling-cutters characterised by physical features other than shape
    • B23C5/20—Milling-cutters characterised by physical features other than shape with removable cutter bits or teeth or cutting inserts
    • B23C5/22—Securing arrangements for bits or teeth or cutting inserts
    • B23C5/2265—Securing arrangements for bits or teeth or cutting inserts by means of a wedge
    • 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
    • Y10T407/1906—Rotary cutting tool including holder [i.e., head] having seat for inserted tool
    • Y10T407/1934—Rotary cutting tool including holder [i.e., head] having seat for inserted tool with separate means to fasten tool to holder
    • Y10T407/1938—Wedge clamp element
    • Y10T407/194—Resilient clamp jaw

Definitions

  • the invention is a device for positively locking cutter blades in cutter heads independently and which holds the blade evenly along its entire length.
  • the object of the invention is to provide a simple and efiicient means for positively locking blades in cutter heads.
  • Another object of the invention is to pro vide a means for locking blades in cutter heads which will permit the blades to be readily removed and replaced.
  • a still further object of the invention is to provide a means for holding cutter blades which will readily permit the blades to be set at dillerent distances from the center, and which will hold each blade independently.
  • the invention embodies a tapering pin in a slot in which a portion of the metal is cut away around the central portion of the pin so that it will only engage the metal at the ends.
  • Figure 1 is a plan view of a cutter head showing the device in place, with part broken away.
  • Figure 2 is a sectional view through one of the openings in which the taperingpin is placed.
  • numeral 1 indicates a taper pin
  • numeral 2 a slot in which the pin may be placed
  • numeral 3 a cutter head
  • the cutter head is made with slots 4: in which blades 5 may be inserted-and openings 2 parallel to and somewhat smaller than the slots 4. It will be seen that as a wedgeis placed in the opening 2, the wall 6 between the opening 2 and the opening 4: will be forced against the blade 5 and there- In this particular arare cut away from the upper edge of the cutter head, which is indicated by the numeral 7 in Figure 2 to a point 8, at the point 9 which is a short distance from the outer edge ofthe cutter head. The upper and lower ends of the opening are then cut on a taper corresponding to the taper of apin 14, 1925. Serial No. 9,334.
  • the blade 5 may be inserted in the slot 4 and when it is in the proper position, the pin 1 may be inserted in the opening 2 and tapped at its large end so that it will wedge the partition 6 against the blade and hold it as hereinbefore described.
  • 1113a means for holding blades in cutter heads, a tapered pin in a split tapered opening beside the said blade, said opening being formed by drilling a hole partially through the said head with one operation and then tapering the outer end of the said hole and forming a tapering opening between the end of the said hole and the end of the said head, thereby leaving a recess around the central portion of the said pin.
  • 2.111 a means for holding blades in cutter heads, tapered openings formed by drilling a cylindrical hole part way through the head, and then forming a tapered portion at either end of the cylindrical hole so that two independent tapered bearing surfaces are formed with an intermediate recess.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Drilling Tools (AREA)

Description

Feb. 22,1927. 1,618,782
. C- T. ROTTLER MEANS FOR HOLDING BLADES IN CUTTER HEADS Filed Feb.- 14, 1925 lNVEN T01? 6/3/5066 ZWQ/We/ I by lock it in place.
rangement, the side walls of the opening 2 Patented Feb. 22, 1927.
UNITED STATES CLARENCE '1. ROT'ILER, OF SEATTLE, WASHINGTON.
MEANS FOR HOLDING BLADES IN CUTTER HEADS.
Application filed February The invention is a device for positively locking cutter blades in cutter heads independently and which holds the blade evenly along its entire length.
The object of the invention is to provide a simple and efiicient means for positively locking blades in cutter heads.
Another object of the invention is to pro vide a means for locking blades in cutter heads which will permit the blades to be readily removed and replaced.
And a still further object of the invention is to provide a means for holding cutter blades which will readily permit the blades to be set at dillerent distances from the center, and which will hold each blade independently.
lVith these ends in view, the invention embodies a tapering pin in a slot in which a portion of the metal is cut away around the central portion of the pin so that it will only engage the metal at the ends.
Other features and advantages of the invention will appear from the following description taken in connection with the drawings, wherein Figure 1 is a plan view of a cutter head showing the device in place, with part broken away.
Figure 2 is a sectional view through one of the openings in which the taperingpin is placed. p n
In the drawings I have shown my device as it would appear wherein numeral 1 indicates a taper pin, numeral 2 a slot in which the pin may be placed and numeral 3 a cutter head.
V The cutter head is made with slots 4: in which blades 5 may be inserted-and openings 2 parallel to and somewhat smaller than the slots 4. It will be seen that as a wedgeis placed in the opening 2, the wall 6 between the opening 2 and the opening 4: will be forced against the blade 5 and there- In this particular arare cut away from the upper edge of the cutter head, which is indicated by the numeral 7 in Figure 2 to a point 8, at the point 9 which is a short distance from the outer edge ofthe cutter head. The upper and lower ends of the opening are then cut on a taper corresponding to the taper of apin 14, 1925. Serial No. 9,334.
that may be inserted therein and as shown at the points 10 and 11. This will leave a space 12 along the central portion of the pin which will not engage the pin so that the pin will be free to engage the walls of the opening with equal force at both the top and bottom or adjacent each end.
It will be observed that by forming the opening in this manner, the pin will engage the partition 6 adjacent the upper and lower ends and thereby wedge it against the blade 5 from two distinct points so that an even gripping action will be secured against the blade.
It will be observed that changesmay be made in the construction without departing from the spirit of the invention. One of which changes may be in the design of the pin or opening as it is understood that any other shape may be used instead of being round as shown, another may be in the proportionate sizes of the pin, slot and cut ter head, and still another may be in the width or shape of the slot 2.
The construction will be readily understood from the foregoing description. To
use the device, the blade 5 may be inserted in the slot 4 and when it is in the proper position, the pin 1 may be inserted in the opening 2 and tapped at its large end so that it will wedge the partition 6 against the blade and hold it as hereinbefore described.
Having thus fully described the invention, what I claim as new and desire to secure by Letters Patent, is
1. 1113a means for holding blades in cutter heads, a tapered pin in a split tapered opening beside the said blade, said opening being formed by drilling a hole partially through the said head with one operation and then tapering the outer end of the said hole and forming a tapering opening between the end of the said hole and the end of the said head, thereby leaving a recess around the central portion of the said pin.
2.111 a means for holding blades in cutter heads, tapered openings formed by drilling a cylindrical hole part way through the head, and then forming a tapered portion at either end of the cylindrical hole so that two independent tapered bearing surfaces are formed with an intermediate recess.
CLARENCE T. ROTTLER.
US9334A 1925-02-14 1925-02-14 Means for holding blades in cutter heads Expired - Lifetime US1618782A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US9334A US1618782A (en) 1925-02-14 1925-02-14 Means for holding blades in cutter heads

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US9334A US1618782A (en) 1925-02-14 1925-02-14 Means for holding blades in cutter heads

Publications (1)

Publication Number Publication Date
US1618782A true US1618782A (en) 1927-02-22

Family

ID=21737001

Family Applications (1)

Application Number Title Priority Date Filing Date
US9334A Expired - Lifetime US1618782A (en) 1925-02-14 1925-02-14 Means for holding blades in cutter heads

Country Status (1)

Country Link
US (1) US1618782A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3211766A1 (en) * 1981-03-30 1982-11-04 The Valeron Corp., 48084 Troy, Mich. SLOT CUTTER

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3211766A1 (en) * 1981-03-30 1982-11-04 The Valeron Corp., 48084 Troy, Mich. SLOT CUTTER

Similar Documents

Publication Publication Date Title
US1830625A (en) Drill for oil and gas wells
US2116775A (en) Screw driver
US2242821A (en) Reaming tool
US1618782A (en) Means for holding blades in cutter heads
US1043098A (en) Tang-driven tool.
US1574922A (en) Core drill
US1620536A (en) Interchangeable boring and counterboring tool
US1359318A (en) Drill
US1369959A (en) Underreamer
US2861779A (en) Rotary drilling bit
US1848404A (en) Reamer
US2306492A (en) Reamer
US2090058A (en) Drilling bit
US1649859A (en) Earth-boring drill
US1822259A (en) Hose coupling
US1358013A (en) Cutting-tool
US2349189A (en) Blade holding block for boring bars
US1681008A (en) Door-knob construction
US1388792A (en) Drill
US1582757A (en) Sucker rod
US1812375A (en) Means for securing the heads of hammers, picks, axes and similar tools
US1538401A (en) Fastener
US1761216A (en) Rotary drill
US3596539A (en) Tapered drift pins and methods of making and using the same
US1487489A (en) Rock and like drill