US39496A - Improvement in ratchet-drills - Google Patents

Improvement in ratchet-drills Download PDF

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Publication number
US39496A
US39496A US39496DA US39496A US 39496 A US39496 A US 39496A US 39496D A US39496D A US 39496DA US 39496 A US39496 A US 39496A
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United States
Prior art keywords
ratchet
pawl
teeth
drills
improvement
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Expired - Lifetime
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Publication date
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Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2133—Pawls and ratchets
    • Y10T74/2141—Sliding pawls

Definitions

  • the nature ot' my said invention consists in a sliding spring-pawl in a mortise in the stock taking the ratchet -teeth around the drillholder, which ratchet and the contiguous portion of the drill-holder are inclosed in and sustained by the end of the stock.
  • Ratchet-drills have before been made, but, in consequence of the ratchet-teeth being exposed, or an opening provided where the lever-pawl has entered to take said teeth, the said teeth become obstructed by the small pieces or chips of metal bored out by thedrill, which cause wear and often breakage of the teeth, in consequence of said pieces of metal getting between the end of the pawl and the teeth.
  • This difficulty is entirely removed by my said invention, because the ratchet and pawl are entirely inclosed, and the sliding pawl is much stronger than the hingedleverpawl, and does not wear loose as quickly, be-
  • a is the drill or tool holder with the pressing-up screw b at one end and the squared drill-socket c at the other end, as usual.
  • d is the ratchet-Wheel, around a, and c is the lever or stock, formed with a cavity at the end to contain the ratchet-wheel d, and with eyes to pass and surround the tool-holder c.
  • One of these eyes isformed in the movable pawlcap f that is retained by screws to the side of e.
  • the spring i throws the said pawl up into the teeth to take the same in rotating the holder a and drill therein, and the pawl and ratchet cannot become obstructed or injured by any substance getting into the same, because they are both tightly inclosed.
  • the tool-holder c, ratchet d, pawl g, and stock e constructed, combined, and arranged as specified.

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

Description

` E. A. RAYMOND.
.Ratchet Drill.
Patented Aug. Il, 1863.
zw w//f/ UNITED STATES PATENT OFFICE.
EDWARD A. RAYMOND, OF BROOKLYN, NEW YORK.
IMPROVEMENT IN RATCH ET-DRI LLS.
Specification forming part of Letters Patent No. 39,496, dated August 11, 1863.
To all whom it may concern:
Be it known that I, EDWARD A. RAYMoND, of Brooklyn, in the county of Kings a-nd State of New York, have invented, made. and applied to use a certain new and useful lmprove mentin Ratchet-Drills; and Ido herebydeclare the following to be a full, clear. and exact description of my said invention, reference being had to the annexed drawings, making part of this specification, wherein- Figure I is a section of my rachetdrill stock, and Fig. 2 is a side view of the sam with the cap of the pawl removed. v
Similar letters designate the same parts.
The nature ot' my said invention consists in a sliding spring-pawl in a mortise in the stock taking the ratchet -teeth around the drillholder, which ratchet and the contiguous portion of the drill-holder are inclosed in and sustained by the end of the stock.
Ratchet-drills have before been made, but, in consequence of the ratchet-teeth being exposed, or an opening provided where the lever-pawl has entered to take said teeth, the said teeth become obstructed by the small pieces or chips of metal bored out by thedrill, which cause wear and often breakage of the teeth, in consequence of said pieces of metal getting between the end of the pawl and the teeth. This difficulty is entirely removed by my said invention, because the ratchet and pawl are entirely inclosed, and the sliding pawl is much stronger than the hingedleverpawl, and does not wear loose as quickly, be-
cause the bearingsurface is much larger than in the hinge of the lever-pawl.
In the drawings, a is the drill or tool holder with the pressing-up screw b at one end and the squared drill-socket c at the other end, as usual. d is the ratchet-Wheel, around a, and c is the lever or stock, formed with a cavity at the end to contain the ratchet-wheel d, and with eyes to pass and surround the tool-holder c. One of these eyes isformed in the movable pawlcap f that is retained by screws to the side of e. Within the stock e is a cavity or mortise receiving the sliding pawl y, that is kept toward the ratchet-teeth d by a spring, t', which spring passes into a cavity ,in the pawl. It will now be seen that as the leverstock c is swung back, the pawl t/ runs over the teeth of d by sliding' in its lnortise, and
the spring i throws the said pawl up into the teeth to take the same in rotating the holder a and drill therein, and the pawl and ratchet cannot become obstructed or injured by any substance getting into the same, because they are both tightly inclosed.
What I claim, and desire to secure by Letters Patent, is-
The tool-holder c, ratchet d, pawl g, and stock e, constructed, combined, and arranged as specified.
In witness whereof I have hereunto set my signature this 18th day of June, 1863.
Witnesses: EDWARD A.4 RAYMOND.
LEMUEL W. SEERELL, THos. GEO. HAROLD.
US39496D Improvement in ratchet-drills Expired - Lifetime US39496A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040130550A1 (en) * 2001-10-18 2004-07-08 Microsoft Corporation Multiple-level graphics processing with animation interval generation
US20040194020A1 (en) * 2003-03-27 2004-09-30 Beda Joseph S. Markup language and object model for vector graphics
US20080318849A1 (en) * 2000-02-09 2008-12-25 Pharma Mar, S.A. Kahalalide F and Related Compounds
US20100199473A1 (en) * 2009-02-10 2010-08-12 Asian Industrial Products, Inc. Ratchet buckle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080318849A1 (en) * 2000-02-09 2008-12-25 Pharma Mar, S.A. Kahalalide F and Related Compounds
US20040130550A1 (en) * 2001-10-18 2004-07-08 Microsoft Corporation Multiple-level graphics processing with animation interval generation
US20040194020A1 (en) * 2003-03-27 2004-09-30 Beda Joseph S. Markup language and object model for vector graphics
US20100199473A1 (en) * 2009-02-10 2010-08-12 Asian Industrial Products, Inc. Ratchet buckle

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