US2125566A - Sharpening tool for paper drills - Google Patents

Sharpening tool for paper drills Download PDF

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Publication number
US2125566A
US2125566A US66693A US6669336A US2125566A US 2125566 A US2125566 A US 2125566A US 66693 A US66693 A US 66693A US 6669336 A US6669336 A US 6669336A US 2125566 A US2125566 A US 2125566A
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United States
Prior art keywords
paper
drill
sharpening
tool
drills
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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
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US66693A
Inventor
Harry S Hill
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.)
HARRY HILL Manufacturing CO
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HARRY HILL Manufacturing CO
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.)
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Publication date
Application filed by HARRY HILL Manufacturing CO filed Critical HARRY HILL Manufacturing CO
Priority to US66693A priority Critical patent/US2125566A/en
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Publication of US2125566A publication Critical patent/US2125566A/en
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Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D15/00—Hand tools or other devices for non-rotary grinding, polishing, or stropping
    • B24D15/06—Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges

Definitions

  • This invention relates to improvements in sharpening tools and more particularly to a tool especially adapted to sharpening paper drills.
  • the principal object of this invention is to provide a device of this character which is of simple, eflicient, durable, and inexpensive construction and wherein the several parts are readily accessible.
  • Another object of the invention is the provision of a tool of this character which may be conveniently carried in the pocket of a workman and readily used in sharpening drills of the various machines under his supervision.
  • the tool is of such character that it may be also con- 15 veniently attached to a machine and Within convenient reach of the operator.
  • Still another object of the invention is the provision of means within the body of the tool for centralizing and stabilizing the drill with respect to the sharpener during the sharpening operation.
  • Figure 1 is a side elevation of the main body of the tool and an actuating cap for engagement with a drill to be sharpened.
  • 90 Figure 2 is a perspective View of a conventional paper drill.
  • Figure 3 is a View showing a paper drill in the process of being sharpened.
  • Figure 4 is a sectional end elevation taken on the line 4-4 of Figure 3.
  • -Reference numeral l indicates the main body of the device which is of cylindrical form and open at both of its ends.
  • I secure a reamer or any other approved form of sharpening tool or cutter indicated at 2 by means of a set-screw 3.
  • I attach a cap 4 by means of any suitable form of flexible connection such, for instance, as a chain 5 or the like.
  • the interior of the cap is formed with a cavity 6 having a stud l projecting inwardly with respect to the side wall of the cavity.
  • the form of paper drill 50 shown in Figure 2 is more or less of conventional design and comprises a shank 8 which is hollow for a portion of its length and its outermost end is formed into a circular cutting edge 9.
  • the head In of the shank 8 is preferably of equal diameter to that of the interior of the main body I so as to stabilize the paper drill when being rotated.
  • the head IU of the paper drill extends beyond the main body I in order to receive the cap 6 in such a way that the stud I will become engaged with the elongated slot II.
  • a sharpening tool for paper drills comprising a hollow cylindrical body member whose inside diameter is equal to the outside diameter of the head of a paper drill, a sharpening element mounted on the interior of the body member at one of its ends, rotatable means disposed at the opposite end of the body member and adapted to impart rotary motion to a paper drill disposed within the body member.
  • a sharpening tool for paper drills comprising a hollow cylindrical body member whose inside diameter is equal to the outside diameter of the head of a paper drill, said body member adapted to rotatably embrace a paper drill, a sharpening element secured within the body member at one of its ends, a cap adapted to be rotated at the opposite end of the body member, and means within the cap for engaging one end of the paper drill and imparting rotary motion HARRY S. HILL.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)

Description

Aug. 2, 1938. H. s. HILL SHARPENING TOOL FOR PAPER DRILLS Filed March 2, 1936 H m R m INVENTOR ATTORNEY v Patented Aug. 2, 1938 SHARPENING TOOL FOR PAPER DRILLS Harry S. Hill, Portland, Oreg., assignor to Harry Hill Manufacturing 00., Portland, Oreg.
Application March 2, 1936, Serial No. 66,693
2 Claims.
This invention relates to improvements in sharpening tools and more particularly to a tool especially adapted to sharpening paper drills.
The principal object of this invention is to provide a device of this character which is of simple, eflicient, durable, and inexpensive construction and wherein the several parts are readily accessible.
Another object of the invention is the provision of a tool of this character which may be conveniently carried in the pocket of a workman and readily used in sharpening drills of the various machines under his supervision. The tool is of such character that it may be also con- 15 veniently attached to a machine and Within convenient reach of the operator.
Still another object of the invention is the provision of means within the body of the tool for centralizing and stabilizing the drill with respect to the sharpener during the sharpening operation.
These and other objects will appear as my invention is more fully hereinafter described in the following specification, illustrated in the ac- 25 companying drawing and finally pointed out in the appended claims.
In the drawing.Figure 1 is a side elevation of the main body of the tool and an actuating cap for engagement with a drill to be sharpened.
90 Figure 2 is a perspective View of a conventional paper drill.
Figure 3 is a View showing a paper drill in the process of being sharpened.
Figure 4 is a sectional end elevation taken on the line 4-4 of Figure 3.
Referring now more particularly to the drawing.-Reference numeral l indicates the main body of the device which is of cylindrical form and open at both of its ends. In one end, I secure a reamer or any other approved form of sharpening tool or cutter indicated at 2 by means of a set-screw 3. To the opposite end of the main body I, I attach a cap 4 by means of any suitable form of flexible connection such, for instance, as a chain 5 or the like. The interior of the cap is formed with a cavity 6 having a stud l projecting inwardly with respect to the side wall of the cavity.
As previously stated, the form of paper drill 50 shown in Figure 2 is more or less of conventional design and comprises a shank 8 which is hollow for a portion of its length and its outermost end is formed into a circular cutting edge 9.
The
in contact with the reamer 2.
The head In of the shank 8 is preferably of equal diameter to that of the interior of the main body I so as to stabilize the paper drill when being rotated. The head IU of the paper drill extends beyond the main body I in order to receive the cap 6 in such a way that the stud I will become engaged with the elongated slot II.
By this arrangement, rotary motion of the cap will impart rotary motion to the paper drill. Thus it Will be seen that rotary motion applied to the drill under pressure will cause the reamer 2 to act upon the cutting edge 9 of the drill.
While I have shown a particular form of embodiment of my invention, I am aware that many minor changes therein will readily suggest themselves to others skilled in the art without departing from the spirit and scope of the invention. What I claim as new and desire to protect by Letters Patent is:-
1. A sharpening tool for paper drills comprising a hollow cylindrical body member whose inside diameter is equal to the outside diameter of the head of a paper drill, a sharpening element mounted on the interior of the body member at one of its ends, rotatable means disposed at the opposite end of the body member and adapted to impart rotary motion to a paper drill disposed within the body member.
2. A sharpening tool for paper drills comprising a hollow cylindrical body member whose inside diameter is equal to the outside diameter of the head of a paper drill, said body member adapted to rotatably embrace a paper drill, a sharpening element secured within the body member at one of its ends, a cap adapted to be rotated at the opposite end of the body member, and means within the cap for engaging one end of the paper drill and imparting rotary motion HARRY S. HILL.
US66693A 1936-03-02 1936-03-02 Sharpening tool for paper drills Expired - Lifetime US2125566A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
US66693A US2125566A (en) 1936-03-02 1936-03-02 Sharpening tool for paper drills

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US2125566A true US2125566A (en) 1938-08-02

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1205418B (en) * 1962-12-04 1965-11-18 Bennie Frank Dirzius Sharpening device for a round, hollow drilling or punching tool
US3439565A (en) * 1966-10-06 1969-04-22 Bennie F Dirzius Hollow drill sharpener
US20060194529A1 (en) * 2005-02-25 2006-08-31 Smith Richard S Retractable abrasive sharpener and carrying case
USD804272S1 (en) 2016-08-03 2017-12-05 Smith's Consumer Products, Inc. Sharpener

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1205418B (en) * 1962-12-04 1965-11-18 Bennie Frank Dirzius Sharpening device for a round, hollow drilling or punching tool
US3439565A (en) * 1966-10-06 1969-04-22 Bennie F Dirzius Hollow drill sharpener
US20060194529A1 (en) * 2005-02-25 2006-08-31 Smith Richard S Retractable abrasive sharpener and carrying case
US20080132159A1 (en) * 2005-02-25 2008-06-05 Smith Richard S Retractable abrasive sharpener and carrying case
US7553220B2 (en) 2005-02-25 2009-06-30 Smith Abrasives, Inc. Retractable abrasive sharpener and carrying case
USD804272S1 (en) 2016-08-03 2017-12-05 Smith's Consumer Products, Inc. Sharpener

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