US191757A - Improvement in tool-handles - Google Patents

Improvement in tool-handles Download PDF

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Publication number
US191757A
US191757A US191757DA US191757A US 191757 A US191757 A US 191757A US 191757D A US191757D A US 191757DA US 191757 A US191757 A US 191757A
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United States
Prior art keywords
tool
handle
handles
hole
shank
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Expired - Lifetime
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/117—Retention by friction only, e.g. using springs, resilient sleeves, tapers
    • B23B31/1179—Retention by friction only, e.g. using springs, resilient sleeves, tapers using heating and cooling
    • 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
    • Y10T279/00—Chucks or sockets
    • Y10T279/17—Socket type
    • Y10T279/17957—Friction grip

Definitions

  • F is another small circular piece of leather or other elastic spongy substance, which is of the proper size to fit snugly in the hole B in the handle.
  • This piece of leather has also a hole in its center, through which the point of the tool-shank can be inserted.
  • This device for fastening tools in handles is quite simple and effective. It can be applied by any ordinary mechanic, and has the advantage of allowing the tool to be removed whenever desired without trouble.
  • the tool-handle A with its bore B and projecting points D D, in combination with the tool-shank H, with its disk F and partial disk E, substantially as and for the purpose described.

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

Description

C-. GROTH.
TOOL-HANDLE.
Patented June1Z,1877.
Inventor 64 5 f2;
UNITED STATES PATENT QFFIGEO CHARLES GROTH, OF SAN FRANCISCO, CALIFORNIA.
IMPROVEMENT IN TOOL-HANDLES.
Specification forming part of Letters Patent No. 191,757, dated June 12, 1877; application filed May 5, 1877.
To all whom it may concern Be it known that I, CHARLES GROTH, of the city and county of San Francisco and State of California,have invented an Improved Tool- I Holder; and I do hereby declare the following Let A represent an ordinary tool-handle.
In the end of this handle'l bore a hole, B, which is large enough and deep enough to admit the shank H of the file C or other tool. I then cut a square channel across the end of the handle, so as to leave the projecting points D D on opposite sides-of the hole. E is a piece of leather, india-rubber, horn, or other elastic spongy substance, which is first cut out in a circular form as large as the small end of the handle. I then cut awaytwo opposite sides of this disk, so that it will fit between the points D of the handle. In the center of this disk I' make a hole, through which the shank of the tool or file can be inserted to the desired point. F is another small circular piece of leather or other elastic spongy substance, which is of the proper size to fit snugly in the hole B in the handle. This piece of leather has also a hole in its center, through which the point of the tool-shank can be inserted.
When these disks are in place on the shank, I insert it into the hole B, and push it down as far as the disk E will permit. The small disk F enters the hole, and is pushed down with the point of the shank, so as to steady it, while the partial disk E fits down between the points D D of the handle, thus preventing the shank from turning in the hole. The ferrule G then fits down over the end of the handle, in the usual Way.
This device for fastening tools in handles is quite simple and effective. It can be applied by any ordinary mechanic, and has the advantage of allowing the tool to be removed whenever desired without trouble.
Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-
The tool-handle A, with its bore B and projecting points D D, in combination with the tool-shank H, with its disk F and partial disk E, substantially as and for the purpose described.
In witness whereof I have hereunto set my hand and seal.
CHARLES GROTH.
Witnesses:
FEANK A. BROOKS, CHARLES ELsAssER.
US191757D Improvement in tool-handles Expired - Lifetime US191757A (en)

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