US122677A - Improvement in ratchet-drills - Google Patents

Improvement in ratchet-drills Download PDF

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Publication number
US122677A
US122677A US122677DA US122677A US 122677 A US122677 A US 122677A US 122677D A US122677D A US 122677DA US 122677 A US122677 A US 122677A
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Prior art keywords
ratchet
handle
improvement
tube
drills
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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
    • B23B45/00—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor
    • B23B45/06—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor driven by man-power
    • B23B45/12—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor driven by man-power by using a ratchet brace
    • 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
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/63—Tool or tool-support with torque-applying ratchet
    • Y10T408/637—Tool or tool-support with torque-applying ratchet with thrust applying means

Definitions

  • Figure l represents avertical transverse section of my improved ratchet-drill, the line C C, Fig. 2,indicating the plane of section.
  • Fig. 2 is a longitudinal section of the same on the line K K, Fig. l.
  • Figs. 3 and 4 are transverse sections on the lines C K and K C, Fig. 2, respectively.
  • a in the drawing represents the drill-stock or tube, conta-ining a socket, c, for the reception ofthe drill, and containing also the center77 B, which projects from its other end.
  • the center is a screw, entering the hollow stock A and grooved lengthwise to receive the end of a pin, b, which projects inwardly from A, and prevents the screw from turning.
  • the feed nut G is swiveled to the end of the tube A and is threaded to fit the screw b, so that by turning said nut the screw will be caused to slide in or out, but without turning.
  • handle D is provided with a succession of notches or depressions, f f, which constitute the ratchet-head.
  • the spring pawl is contained within the handle and entirely connected with the saine. aperture, g, ofthe eye before the handle is applied to the tube A.
  • the end of the pawl E is, by the spi-in g 7L, forced against the ratchethead, and slips in the notches ofthe same when the handle is turned in one direction, while, when the handle is turned in the other direction, it takes rm hold and turns the tube and drill with it.
  • the forming the ratchet-head in the body of the tube A by depressions is a great advantage over the usual method of forming projecting teeth. It is stronger and-protects the bearing ing surface of each tooth at the sides, similar to a flanged ratchet-wheel, but is much cheaper to make than the same.
  • the forming the handle and eye in one piece and providing a chamber in the handle for the pawl and spring is also a more economical and simple plan than any hitherto in use.
  • a sliding feed-center, B threaded and longitudinally grooved, combined in a ratchetdrill with a swiveled nut, O, a-nd tube A, having pin b, as and for the purpose described.

Description

FFICE.
IMPROVEMENT IN RATCHET-DRILLS.
Specification forming part of Letters Patent No. 122,677, dated January 9, 1872.
Speciiication describing anew and Improved Ratchet-Drill invented by JOHN J. SwrrzER, of Williamsburg, in the county of Kings and State of New York.
Figure l represents avertical transverse section of my improved ratchet-drill, the line C C, Fig. 2,indicating the plane of section. Fig. 2 is a longitudinal section of the same on the line K K, Fig. l. Figs. 3 and 4 are transverse sections on the lines C K and K C, Fig. 2, respectively.
Similar letters of reference indicate corresponding parts.
The invention will first be fully described, and then clearly pointed out in the claims.
A in the drawing represents the drill-stock or tube, conta-ining a socket, c, for the reception ofthe drill, and containing also the center77 B, which projects from its other end. The
center is a screw, entering the hollow stock A and grooved lengthwise to receive the end of a pin, b, which projects inwardly from A, and prevents the screw from turning. The feed nut G is swiveled to the end of the tube A and is threaded to fit the screw b, so that by turning said nut the screw will be caused to slide in or out, but without turning. This feature of a sliding center I consider a valuable improvement of the feeding device now in use,
handle D is provided with a succession of notches or depressions, f f, which constitute the ratchet-head. The spring pawl is contained within the handle and entirely connected with the saine. aperture, g, ofthe eye before the handle is applied to the tube A. The end of the pawl E is, by the spi-in g 7L, forced against the ratchethead, and slips in the notches ofthe same when the handle is turned in one direction, while, when the handle is turned in the other direction, it takes rm hold and turns the tube and drill with it.
The forming the ratchet-head in the body of the tube A by depressions is a great advantage over the usual method of forming projecting teeth. It is stronger and-protects the bearing ing surface of each tooth at the sides, similar to a flanged ratchet-wheel, but is much cheaper to make than the same. The forming the handle and eye in one piece and providing a chamber in the handle for the pawl and spring is also a more economical and simple plan than any hitherto in use.
Having thus described my invention, I claim as new and desire to secure by Letters Patentl. An ordinary handle, D, provided with a spring-pawl, h E, combined with a tube, A, provided with nut d, shoulder c, and notches f, to hold the tube and handle, as described.
2. A sliding feed-center, B, threaded and longitudinally grooved, combined in a ratchetdrill with a swiveled nut, O, a-nd tube A, having pin b, as and for the purpose described.
JOHN J. SWITZER.
Witnesses:
A. V. BRIEsEN, T. B. MosHER.
It is introduced through an
US122677D Improvement in ratchet-drills Expired - Lifetime US122677A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080208283A1 (en) * 2007-02-26 2008-08-28 Rio Vetter Neural Interface System
US20110154655A1 (en) * 2005-10-07 2011-06-30 Hetke Jamille F Modular multichannel microelectrode array and methods of making same
US20180205685A1 (en) * 2017-01-13 2018-07-19 International Business Machines Corporation Dynamic Location Based Configuration of a Presentation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110154655A1 (en) * 2005-10-07 2011-06-30 Hetke Jamille F Modular multichannel microelectrode array and methods of making same
US20080208283A1 (en) * 2007-02-26 2008-08-28 Rio Vetter Neural Interface System
US20180205685A1 (en) * 2017-01-13 2018-07-19 International Business Machines Corporation Dynamic Location Based Configuration of a Presentation

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