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US94280A - Improvement in ferrules - Google Patents

Improvement in ferrules Download PDF

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Publication number
US94280A
US94280A US94280DA US94280A US 94280 A US94280 A US 94280A US 94280D A US94280D A US 94280DA US 94280 A US94280 A US 94280A
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Prior art keywords
points
ferrules
ferrule
improvement
handle
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B31/00Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02Chucks
    • B23B31/10Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/117Retention by friction only, e.g. using springs, resilient sleeves, tapers
    • B23B31/1179Retention by friction only, e.g. using springs, resilient sleeves, tapers using heating and cooling
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00Chucks or sockets
    • Y10T279/17Socket type
    • Y10T279/17957Friction grip

Definitions

  • Figure 2 is Aa longitudinal section of the same.
  • Figure 3 is an end view of the same, in an uncompleted state.
  • My invention relates to that class oi' ferrules which are struck up, or swagedfrom a fiat piece of metal, so as to leave a solid end, which end is sometimes wholly removed, and sometimes only a small aperture, sufficient to admit theshank of the tool, is made in the solid end of the ferrule.
  • My invention consists in the use or employment of points', formed on or in the solid end of said ferrule, which points are bent inward, and parallel to the sides of the ferrule, so as to enter the end of the wooden handle as the saine is driven into the ferrule.
  • points c enter the end of the handle A, and act as.

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

Description

Hiwit (twine.
S. N. CHAPIN, CF NEW BRITAIN, CONNECTICUT.
Lette/rs Paten No. 94,280, da'ted'August 3l, 1869.
IMPROVEMENT IN FERRULES.
The Schedule referred to in these Letters Patent and making part of lthe same.
To all whom it may concern:
, Beit known tbatI, S. N. OHAPIN, of New Britain, in the county of Hartford, and State of Connecticut, have invented new and useful Improvements in Ferrules; and I do hereby decla-re that the following is a full, ciear, and exact description thereof, reference being had to the accompanying drawings, making a part l of this specification, in Ywhich-- Figure l is an end View of my invention.
Figure 2 is Aa longitudinal section of the same.
Figure 3 is an end view of the same, in an uncompleted state.
Similar letters of reference indicate' like parts.
My invention relates to that class oi' ferrules which are struck up, or swagedfrom a fiat piece of metal, so as to leave a solid end, which end is sometimes wholly removed, and sometimes only a small aperture, sufficient to admit theshank of the tool, is made in the solid end of the ferrule.
My invention consists in the use or employment of points', formed on or in the solid end of said ferrule, which points are bent inward, and parallel to the sides of the ferrule, so as to enter the end of the wooden handle as the saine is driven into the ferrule.
After the fel-rule a isformed, in the usual manner, a portion of the solid end is removed, so as to leave the remaining portion ofthe metal in form of any desired'number of points, c, as shownA in tig. 3. The points c are then turned or bent inward, so as to stand parallel, or nearly so, to the sides of theferrule a, with a slnall'space between the sides and the points, as hown in iig. 2. l
As the handle A is driven into the ferrule a, the
points c enter the end of the handle A, and act as.
wedgesto swell the wood, and cause th same to ll the ferrule a, and hold it upon thehandle. In case the wood of the handle shrinks, it will draw the points inward, and continually press upon them, so that the .friction ofthe points in the handle will secure the ferrule in place.
Ordinary fel-rules often become loose, and fall from 'place while being transported, or before the consumer and for the purpose set fort-l1.
' S. N. GHAPIN.
Witnesses:
C. E. MIrCHELL, JAMES SHEPARD.
US94280D Improvement in ferrules Expired - Lifetime US94280A (en)

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