US744925A - Extension-bit or drilling-tool. - Google Patents

Extension-bit or drilling-tool. Download PDF

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Publication number
US744925A
US744925A US16802903A US1903168029A US744925A US 744925 A US744925 A US 744925A US 16802903 A US16802903 A US 16802903A US 1903168029 A US1903168029 A US 1903168029A US 744925 A US744925 A US 744925A
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US
United States
Prior art keywords
bit
drilling
pinion
tool
extension
Prior art date
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
Application number
US16802903A
Inventor
Daniel Louis Luddington
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.)
GEORGE MAINHART
Original Assignee
GEORGE MAINHART
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.)
Filing date
Publication date
Application filed by GEORGE MAINHART filed Critical GEORGE MAINHART
Priority to US16802903A priority Critical patent/US744925A/en
Application granted granted Critical
Publication of US744925A publication Critical patent/US744925A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/22—Feeding members carrying tools or work
    • B23Q5/32—Feeding working-spindles
    • 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
    • Y10T408/65—Means to drive tool
    • Y10T408/675—Means to drive tool including means to move Tool along tool-axis
    • Y10T408/6779—Rack and pinion
    • 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
    • Y10T408/83—Tool-support with means to move Tool relative to tool-support
    • 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
    • Y10T408/89—Tool or Tool with support
    • Y10T408/907—Tool or Tool with support including detailed shank
    • 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
    • Y10T408/96—Miscellaneous

Definitions

  • Thisinvention has relation to improve- Io ments in drilling-tools; and it consists in the novel construction,combination,and arrangement of parts of which it is composed, whereby the bit is extensible while the process of drilling is carried out, all as will be herein- I after more fully explained, and particularly pointed out in the appended claim.
  • A designates the hand drilling-tool, comprising the body portion or handle ct, which is provided with a central opening Z) to receive the stem c of the bit-holder d, which 3o latter is hollow, providing ⁇ a central passage e for the bit, and the same is constructed with an enlarged portionf, having a shoulder g, adjacent to which is a pinion h, arranged upon the narrow stem of the holder.
  • a spring-arm t' provided with a notch or cut-away portion j opposite to the pinion, and the end thereof has an openingzt, in which is seated akey or wearpin l, that is designed to hold the pinion in 4o place.
  • This spring-arm will yield when the notched end thereof is raised to permit the pinion 7L to pass the inner end of the pin Z in detaching the bit-holder CZ from the body or handle d or attaching the same to said handle.
  • the bit after insertion into the hollow holder and adjusted in position is held in place by a set-screw m on the holder.
  • B represents a bar, which is provided with teeth n, that engage the teeth of the pinion

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

Description

PATBNTED Nov. 24, 190s.
l I D. L. LUDDINGTON. EXTENSION BIT 0R DRILLING TOOL.
APPLIOATION FILED AUG, 3. 1903.
H0 IODEL.
WJTNESSES KNEW ZTa-w.
v UNITED STATES Patented November 24, 11903.
PATENT EEICE.
DANIEL LOUIS LUDDINGTON, OF GRASS VALLEY, CALIFORNIA, ASSIGNOR OE ONELHALF TO GEORGE MAINIIART, OE GRASS VALLEY, CALIFORNIA.
EXTENSlON-IT @R ORlLLlNG==TOL SPECIFICATION forming part of Letters iatent ...To. 744,925, dated November 24, 1903. Application filed August 3, 1903.k Serial No. 168,029. (No model.)
To @ZZ whom it may concern:
Be it known that LDANTEL LoUls LUDDINGV- TON, a citizen of the United States, residing at Grass Valley, in the county of Nevada and '5 State of California, have invented new and useful Improvements in Extension-Bits or Drilling-Tools, of -which the following is a specification.
Thisinvention has relation to improve- Io ments in drilling-tools; and it consists in the novel construction,combination,and arrangement of parts of which it is composed, whereby the bit is extensible while the process of drilling is carried out, all as will be herein- I after more fully explained, and particularly pointed out in the appended claim.
The annexed drawings, to which reference is made, fully illustrate my invention, in which 2o Figure l represents a side View of my improved drilling-tool. Fig. 2 is a vertical longitudinal sectional view of the same, and Fig. 3 represents a transverse vertical sectional view.
Referring by letter to the accompanying drawings, A designates the hand drilling-tool, comprising the body portion or handle ct, which is provided with a central opening Z) to receive the stem c of the bit-holder d, which 3o latter is hollow, providing` a central passage e for the bit, and the same is constructed with an enlarged portionf, having a shoulder g, adjacent to which is a pinion h, arranged upon the narrow stem of the holder. Se-
cured to the handle is a spring-arm t', provided with a notch or cut-away portion j opposite to the pinion, and the end thereof has an openingzt, in which is seated akey or wearpin l, that is designed to hold the pinion in 4o place. This spring-arm will yield when the notched end thereof is raised to permit the pinion 7L to pass the inner end of the pin Z in detaching the bit-holder CZ from the body or handle d or attaching the same to said handle. The bit after insertion into the hollow holder and adjusted in position is held in place by a set-screw m on the holder.
B represents a bar, which is provided with teeth n, that engage the teeth of the pinion,
and the same is provided with a handle o, by 5o which said toothed bar is operated.
Having thus described the various parts of which my device is composed, I will now explain its operation. The bit being adjusted within the hollow holder and the toothed bar arranged within the eut-away portion and engagingthe pinion, the operatorgrasps the handle of the toothed bar and draws and forces the same back and forth, which causes the pinion to revolve first in one direction and then an* 6o other direction, thereby reversing the revolution of said pinion with every stroke of the toothed bar, thus imparting such movement to the bit in drilling. A string or wire 19 is connected to the inner end of the bit and serves to bring the bit forward in adjusting the same, and the notch or cutaway portion in the end of the spring-arm serves as a guide to the toothed bar in its movements.
It will be seen that the wear-pin l being de- 7o taehable the same can be withdrawn when worn and replaced by another.
I do'not wish to be confined to the exact construction of my device, as various changes may be made in its construction without departing from the spirit of my invention.
INhat I claim as new, and desire to secure by Letters Patent, is-
The combination with the bit, hollow holder and handle, said holder provided with the 8o pinion, of the toothed bar and spring-arm, the latter provided with the notch adjacent to said pinion, and the pin inserted in the end of said arm and adapted to hold the pinion in position, as shown and described.
In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.
DANIEL LOUIS LUDDINGTON.
Witnesses:
Gno. MAINHAET, GEO. E. MAINHAET.
US16802903A 1903-08-03 1903-08-03 Extension-bit or drilling-tool. Expired - Lifetime US744925A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US16802903A US744925A (en) 1903-08-03 1903-08-03 Extension-bit or drilling-tool.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16802903A US744925A (en) 1903-08-03 1903-08-03 Extension-bit or drilling-tool.

Publications (1)

Publication Number Publication Date
US744925A true US744925A (en) 1903-11-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
US16802903A Expired - Lifetime US744925A (en) 1903-08-03 1903-08-03 Extension-bit or drilling-tool.

Country Status (1)

Country Link
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