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GB696804A - Machine for sharpening tools - Google Patents

Machine for sharpening tools

Info

Publication number
GB696804A
GB696804A GB4717/52A GB471752A GB696804A GB 696804 A GB696804 A GB 696804A GB 4717/52 A GB4717/52 A GB 4717/52A GB 471752 A GB471752 A GB 471752A GB 696804 A GB696804 A GB 696804A
Authority
GB
United Kingdom
Prior art keywords
switch
motor
switches
circuit
sharpening
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
Application number
GB4717/52A
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.)
Gleason Works
Original Assignee
Gleason Works
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 Gleason Works filed Critical Gleason Works
Publication of GB696804A publication Critical patent/GB696804A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
    • B24B3/02—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of milling cutters
    • B24B3/08—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of milling cutters of profile milling cutters, e.g. of disc type

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turning (AREA)

Abstract

696,804. Control of A.C. motors. GLEASON WORKS. Feb. 22, 1952 [Feb. 23, 1951], No. 4717/52. Class 38 (iii) [Also in Group XXIII] An A.C. motor 55 fed from a 3-phase supply drives the indexing mechanism of a machine for sharpening gear cutters and may be connected to run continuously until the sharpening operation has been completed or, alternatively, to run only when a switch 148 is depressed. Switches 131 and 137 operated by relays 129 and 136 selectively energised by a switch 153 connect the motor for forward and reverse operation respectively. For continuous operation a switch 154 is opened and the switch 148 closed to energize relays 129 and 145 closing switches 135 and 144 respectively. The latter switch closes a circuit to shunt the contacts of switch 148 so that the motor continues to run after the switch 148 has been released and until two microswitches 125 and 126 have been automatically actuated by the indexing mechanism of the machine at the end of the sharpening operation. The opening of these latter switches energizes a relay 141 to complete a circuit for a high resistance indicating lamp 155. A stop switch 151 enables the circuit to the motor to be broken before the end of the operation if necessary. When the switch 154 is open, the motor may be "jogged" in either the forward or reverse direction according to the position of switch 153 by actuating the switch 148, the relay-operated switches 135 and 144 remaining open. Specification 694,878, [Group XXII], is referred to.
GB4717/52A 1951-02-23 1952-02-22 Machine for sharpening tools Expired GB696804A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US696804XA 1951-02-23 1951-02-23

Publications (1)

Publication Number Publication Date
GB696804A true GB696804A (en) 1953-09-09

Family

ID=22090547

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4717/52A Expired GB696804A (en) 1951-02-23 1952-02-22 Machine for sharpening tools

Country Status (1)

Country Link
GB (1) GB696804A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5168661A (en) * 1990-05-30 1992-12-08 The Gleason Works Method of grinding the surfaces of cutting blades and grinding wheel therefor
US5241794A (en) * 1990-05-30 1993-09-07 The Gleason Works Grinding wheel for cutting blades

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5168661A (en) * 1990-05-30 1992-12-08 The Gleason Works Method of grinding the surfaces of cutting blades and grinding wheel therefor
US5241794A (en) * 1990-05-30 1993-09-07 The Gleason Works Grinding wheel for cutting blades

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