US841332A - Scraper for metal-working. - Google Patents

Scraper for metal-working. Download PDF

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Publication number
US841332A
US841332A US33896806A US1906338968A US841332A US 841332 A US841332 A US 841332A US 33896806 A US33896806 A US 33896806A US 1906338968 A US1906338968 A US 1906338968A US 841332 A US841332 A US 841332A
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United States
Prior art keywords
scraper
working
metal
shaped
ring
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Expired - Lifetime
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US33896806A
Inventor
Carl Lehnert
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Individual
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Priority to US33896806A priority Critical patent/US841332A/en
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L13/00—Implements for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L13/02—Scraping
    • A47L13/08—Scraping with scraping blades

Definitions

  • This invention relates to a scraper for metal-Working, especially for working the inner surface of bearings which is provided with a ring shaped cutting edge.
  • the scraper proper a, which is shaped like aring of which the inner ring plane is narrower than the outer one in order to get a better scraping is supported on a handle I), which is fork-shaped at its supporting end, by means of a pivot c.
  • This scraper offers the advantage over the hitherto used three-edged scrapers that a much quicker and neater working can be obtained with the same, for, especially when working the inner surfaces of bearings in which usually the lubricating-grooves are made previously to scraping, it very often happens that the metal surface to be worked is damaged by the use of the pointed threeedged scraper.
  • the ring a may be made of any desired convenient size.
  • a scraper for metal-working comprising in combination, the scraper proper a shaped like a ring with narrower lnner ring plane than the outer one, a handle I) fork-shaped at one end, and a pivot c inserted through the fork-shaped end of said handle and through the body of said ring and thus adapted to support the latter on said handle, substantially as described and shown and for the purpose set forth.

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  • Manufacture And Refinement Of Metals (AREA)
  • Forging (AREA)

Description

PATENTED JAN. 15, 190? 0. LBHNERT.
SORAPBR FOR METAL WORKING.
APPLICATION FILED OUT. 15, 1906.
TILE" NORRIS PETERS c sums-m CARL LEHNERT, OF MARXLOH, GERMANY.
SCRAPER FOR METAL-WORKING- Specification of Letters Patent.
Patented Jan. 15, 1907.
. Application filed October 15, 1906. Serial No. 338,968.
To (0Z1: whom, it may concern:
Be it known that I, CARL LEHNERT, a subject of the German Emperor, and a resident of Marxloh, Germany, have invented certain new and useful Improvements in Scrapers for Metal-forking, of which the following is a specification.
This invention relates to a scraper for metal-Working, especially for working the inner surface of bearings which is provided with a ring shaped cutting edge.
In the accompanying drawings the new scraper is shown in Figures 1 and 2 in front view and side view, respectively.
The scraper proper, a, which is shaped like aring of which the inner ring plane is narrower than the outer one in order to get a better scraping is supported on a handle I), which is fork-shaped at its supporting end, by means of a pivot c.
This scraper offers the advantage over the hitherto used three-edged scrapers that a much quicker and neater working can be obtained with the same, for, especially when working the inner surfaces of bearings in which usually the lubricating-grooves are made previously to scraping, it very often happens that the metal surface to be worked is damaged by the use of the pointed threeedged scraper.
The ring a may be made of any desired convenient size.
Having fully described my invention, what I claim, and desire to secure by Letters Patent, is
A scraper for metal-working, comprising in combination, the scraper proper a shaped like a ring with narrower lnner ring plane than the outer one, a handle I) fork-shaped at one end, and a pivot c inserted through the fork-shaped end of said handle and through the body of said ring and thus adapted to support the latter on said handle, substantially as described and shown and for the purpose set forth.
In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.
CARL LEHNERT. Witnesses:
ALFRED POHLMEYER, WILLIAM ESSENWEIN.
US33896806A 1906-10-15 1906-10-15 Scraper for metal-working. Expired - Lifetime US841332A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US33896806A US841332A (en) 1906-10-15 1906-10-15 Scraper for metal-working.

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US33896806A US841332A (en) 1906-10-15 1906-10-15 Scraper for metal-working.

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US841332A true US841332A (en) 1907-01-15

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2448385A (en) * 1944-06-10 1948-08-31 Otto L Powers Deburring tool
US2450075A (en) * 1944-06-16 1948-09-28 Laurence A Bashara Burr-cutting tool
US3343193A (en) * 1965-02-12 1967-09-26 Koppers Co Inc Power driven tool for cleaning coke oven doors
US5103684A (en) * 1990-05-30 1992-04-14 The United States Of America As Represented By The Secretary Of The Air Force Material cutting tool

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2448385A (en) * 1944-06-10 1948-08-31 Otto L Powers Deburring tool
US2450075A (en) * 1944-06-16 1948-09-28 Laurence A Bashara Burr-cutting tool
US3343193A (en) * 1965-02-12 1967-09-26 Koppers Co Inc Power driven tool for cleaning coke oven doors
US5103684A (en) * 1990-05-30 1992-04-14 The United States Of America As Represented By The Secretary Of The Air Force Material cutting tool

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