US331324A - piffard - Google Patents

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Publication number
US331324A
US331324A US331324DA US331324A US 331324 A US331324 A US 331324A US 331324D A US331324D A US 331324DA US 331324 A US331324 A US 331324A
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United States
Prior art keywords
file
piffard
new york
metal
teeth
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Expired - Lifetime
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D71/00—Filing or rasping tools; Securing arrangements therefor
    • 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
    • Y10T407/18—File or rasp

Definitions

  • the object of my invention is to produce an improved file for filing curved surfaces.
  • My invention consists of an elastic metal file, or strip of spring metal having single-cut, double-cut, or other cutting-teeth.
  • the file may he made by taking a strip or piece of spring-steel and forn ing thereon the cutting-teeth in any desired manne'; or the cutting-teeth may be formed on a blank of the desired shape, the material being in a soft state, and the teniper or desired elasticityimparted afterward.
  • the file might be made froni other materials-snoh, for instance, as brass; but steel is preferable on account of its superior hardness.
  • the finished file of my invention consists of an elastic metal having file-teeth of any desired kind.
  • the finished elastic metal file is capable of application to curved sur-faces with eXtensive contact in contradistinction to ordinary rigid metal files, which can be in contact with a curved surface to a limited extent only.
  • My improved elastic metal file is especially useful as a nail or manicure file, and in dental Operations, but may obviously he Inadein various'forns and be used for other purposes.
  • an elastic metal file or piece of spring metal having suitably-formed file teeth upon its surface, substantially as set forth.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Description

(NO Model.)
H. G. PIFFARD.
FILE. V No. 331,324. w Patented Dec. 1. 1885.
20&
Iy. 3. IHIIMMHIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIHIIIII mu WIN/58858: V l/VVE/VTO? i %Za/W i A TTOH/VEY UNITED STATES PATENT OFFICE@ HENRY G. PIFFARD, OF NEW YORK, N. Y.
FILE.
SPECIPICATION forming part of Letters Patnt No. 331324, dated December l, 1885.
V Application filctl June 6, 1885. Serial No. 161828. (No'modelJ To all whom it may cancer-72 Be it known that I, HENRY G. PIFFARD, a citizen of the United States, and a resident of New York, in the County of New York and State of New York, have invented a certain new and useful Improved File, of which the following is a specification.
The object of my invention is to produce an improved file for filing curved surfaces.
My invention consists of an elastic metal file, or strip of spring metal having single-cut, double-cut, or other cutting-teeth.
I propose to make ny improved file of any metal suitably tempered or treatecl so that the finished file shall be elastic, but prefer to make the same of steel.
The file may he made by taking a strip or piece of spring-steel and forn ing thereon the cutting-teeth in any desired manne'; or the cutting-teeth may be formed on a blank of the desired shape, the material being in a soft state, and the teniper or desired elasticityimparted afterward.
The file might be made froni other materials-snoh, for instance, as brass; but steel is preferable on account of its superior hardness. In any case, however, the finished file of my invention consists of an elastic metal having file-teeth of any desired kind.
The finished elastic metal file is capable of application to curved sur-faces with eXtensive contact in contradistinction to ordinary rigid metal files, which can be in contact with a curved surface to a limited extent only.
My improved elastic metal file is especially useful as a nail or manicure file, and in dental Operations, but may obviously he Inadein various'forns and be used for other purposes.
In Figure l of the accompanying drawings I have shown an ordinary elastic metal Inancurefile, and in Fig. 2 the same is shown in edge view bent. In Fig. 3 isindicated an elas tic metal dental file.
What I claim as ny inventiomand desire to secure by Letters Patent, is
As a new article of nanufacture, an elastic metal file or piece of spring metal having suitably-formed file teeth upon its surface, substantially as set forth.
Signed at New York, in the County of New York and State of New York, this th day of June, A. D. 1885.
HENRY G. PIFFARD.
XVitnesses:
H. C. TOWNSEND, GEO. O. COFFIN.
US331324D piffard Expired - Lifetime US331324A (en)

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US331324A true US331324A (en) 1885-12-01

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US331324D Expired - Lifetime US331324A (en) piffard

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4325168A (en) * 1980-06-30 1982-04-20 Swentzel Kipling C File for a chain saw
US20110003244A1 (en) * 2009-07-01 2011-01-06 Daisuke Inoue Toner, method for preparing the toner, and image forming method using the toner

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4325168A (en) * 1980-06-30 1982-04-20 Swentzel Kipling C File for a chain saw
US20110003244A1 (en) * 2009-07-01 2011-01-06 Daisuke Inoue Toner, method for preparing the toner, and image forming method using the toner

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