US PATENT SUBCLASS 76 / 12
FILE CUTTING

Current as of: June, 1999
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76 /   HD   METAL TOOLS AND IMPLEMENTS, MAKING

12FILE CUTTING {9}
13  DF  .~> Rasp-punching
14  DF  .~> Swaging
15  DF  .~> Trip-operated cutter {1}
17  DF  .~> Idle cutter, hammer-operated {1}
19  DF  .~> Pressers
20  DF  .~> Beds and clamps
21  DF  .~> Cutter heads
22  DF  .~> Feeding {1}
24.1  DF  .~> Process {1}

DEFINITION

Classification: 76/12

Miscellaneous machines for forming the cutting ribs or teeth of files and rasps.

(1) Note. For electrolytic apparatus used to sharpen or resharpen files, see Class 204, Chemistry: Electrical and Wave Energy, subclasses 194+.

(2) Note. For electrolytic processes for sharpening or resharpening files, see Class 205, Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions, subclass 664.

SEE OR SEARCH THIS CLASS, SUBCLASS:

28, for machines which form saw teeth by forcing a chisel into the edge of a blank to cut and swage up the teeth.

SEE OR SEARCH CLASS

29, Metal Working,

77, for machines and processes for preparing file-blanks by filing the surfaces of the rough blanks. 72, Metal Deforming, for forging and swaging apparatus peculiarly adapted for forging toothed articles such as milling cutters, tapping tools, etc.

204, Chemistry: Electrical and Wave Energy,

194+, for an electrolytic apparatus used to sharpen or resharpen a file or rasp.

205, Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions,

664, for electrolytic sharpening or resharpening of a file or rasp.

451, Abrading, for a process of or machine for cleaning or resharpening a file by means of a blast of sand or other abrading material.